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R&S EVS GBAS and SCAT1 Options User Manual

1. 47 GBASATTMODES cia A A AAA ARSS 47 IGBAS TAI RTE 47 GBAS FREQRF GBAS FREQRF lt Freq gt This command defines the receive frequency for the GBAS signal The query returns the most recently measured frequency This command is identical to the general R amp S EVS300 RF command Parameters lt Freq gt Default value 108 MHz Range 75 MHz to 350 MHz Default unit kHz Return values lt SettingResult gt READY Setting was successfully applied ERROR An error occurred setting was not successful Example GBAS FREQRF 117 975 GBAS ATTMODE GBAS ATTMODE lt Mode gt This command defines the attenuation mode The query returns the mode that was actually used for the current measurement Parameters lt Mode gt LN Low Noise Applies an attenuation of 10 dB NORM Normal Applies no attenuation LD Low Distortion Applies an attenuation of 25 dB LN AGC The attenuation mode is selected automatically depending on the measured power level Default value LN AGC 7 3 7 4 Configuring the GPS Reference Point Return values lt SettingResult gt READY Setting was successfully applied ERROR An error occurred setting was not successful Example GBAS ATTMODE LN Manual operation See Att Mode on page 31 Configuring the GPS Reference Point In addition to the specific GBAS SCAT I data the captured GPS data may be of inter est If
2. K md gnd SatlD PRC m IOD RRCor m s S pr gnd m B pr gnd m S fail gnd m B fail gnd m PRC m For details on the correction data parameters refer to the SCAT I specification 2 MT4 If the slot contains a message type 4 the following decoded message data is provided for each of the up to 15 FASDBs in full list only Table 1 5 Decoded message type 4 data for the individual slot and each FASDB SCAT I Column Description MT4 DATA Section label separator in list MB CRC MB ID Message block ID e 1001 1001 SCAT I Stat ID Received Station ID equivalent to GBAS ID or SCAT ID MsgLen byte Format Description of GBAS and SCAT I Data Column Description OpType AirportlD RunwayNo RunwayLtr Routelnd Vallnd RPDS RefPathID ThDP_Lat ThDP_Long ThDP_Height m DERP_LAT DERP Long TCH ft GPA FASCRC List of Commands e LR EE 49 GLEARALLEIS MER 49 DE STAR Mos osscoa E 49 Dee ea io cet 50 CGBASATTMODE T 47 GBAS ATTMODE E SEENEN erede des etta ind re Ene CRDI A AN cune 58 ElHdeni c 47 GBAS F TEE 47 GBAS GETMDE tlie cette cts etit Ee ee 58 GBAS GET EE 59 GBAS A static o o a aa CDI EP TE
3. A 5 Typographical Conventions irren iieri enun inue 5 Welcome to the GBAS and SCAT I Analysis Application 7 Installing and Activating the GBAS and SCAT Analysis Applications 7 Starting the GBAS and SCAT Analysis Application ceres 9 Basics on GBAS and SCAT Analysis eese 10 GBAS Specifies EE 10 Broadcast Timing Structure eseeeeesseeeeeeseeeeee nennen nnne nn nennen nnns 12 Final Approach Segment FAS Construction Data eeeeenee 12 Data Acquisition with the Data Logger eeeeeeennnnnenm 13 Data Streaming ier dai IR enis 14 Time Slot Synchronization via PPS eese 15 Result Displays 16 Overview of Captured Data Main View eere 16 Time Slot Details Received Messages Time Slot View 18 Message Type 1 Differential Corrections MT1 View eene 19 Message Type 4 Final Approach Segment Data FAS DB View 22 GBAS SCAT Data Logger List View eeeeeeeeeeeenneneeneennn nennen 26 Pseudorange Correction Data Graph PRC Graph sssss 27 GPS Information 29
4. FAS DB view The following specific FAS DB data is displayed For a visualization of the most important GBAS FAS data parameters see Table 4 9 Displayed FAS DB for a single GBAS reference path in GBAS FAS DB view Reference Path Data Selector Reference Path ID FAS Data Length byte Operation Type User Manual 1176 9212 02 02 23 Message Type 4 Final Approach Segment Data FAS DB View SBAS Service Provider Airport ID Runway Number Runway Letter Appr Perform Designator Route Indicator LTP FTP Latitude LTP FTP Longitude LTP FTP Height m Delta FPAP Latitude Delta FPAP Longitude Thres Cross Height Thres Cross Height Unit Glide Path Angle GPA Course Width at Threshold m Delta Length Offset m FAS DATA BLOCK CRC FAS Vertical Alert Limit m FAS Lateral Alert Limit m 4 4 2 SCAT I Final Approach Segment Data SCAT I FAS DB View The details for a particular reference path are displayed in the SCAT I FAS DB view To display this view select the M TYPE 4 VIEW softkey in the Time Slot view To view the details for a different reference path select Sel FASDB and then select one of the available Reference Path Data Selectors RPDS from the list on the left hand side In order to see the detailed SCAT I data the option R amp S EVS300 K10 is requi
5. Noise Normal or Low Distortion mode When monitoring signals with mostly constant signal levels it is also recommended that you use the Low Noise Normal or Low Distor tion mode Remote command GBAS ATTMODE on page 47 GBAS LEV on page 59 5 3 Working with the Data Logger The Data Logger records and manages the data captured during a single measure ment or a series of measurements Data Logger functions are available when you press the MEM key in GBAS SCAT I mode For details on the Data Logger see chapter 3 4 Data Acquisition with the Data Log ger on page 13 e Setting Up the Data Looger ener nennen nnns ens 32 e Synchronizing the R amp S EVS300 CIOCK eret edet edet trn dta 35 e Starting and Stopping the Data Logger enne 37 e Analyzing the Data Logger Enlries 2 cette 38 e Managing Data Logger Lists eee iei ta cei cei ect 39 e Selecting Parameters in the Data Logger Uiet 41 e Configuring the PRO Graph EEN 43 5 3 1 Setting Up the Data Logger You can define when and how often data is logged These settings are available when you press the SETUP key and then select Data Logger Working with the Data Logger ext trigger time ext trig time PPS Fig 5 1 Data Logger Setup dialog box Logging Channels EE 33 Logging SOUCO se reran tata 33 Logging Interval dcr ad E a Lee tete tee LY bud rues 34 Ext Tree COL iere Aa 34 EXE Trigger Impulsado 34 AUTO Power DO
6. index may contain up to 9999 entries Remote command SETACTIVELIST on page 54 Clear List Clears the currently selected list All entries are deleted Remote command CLEARACTIVELIST on page 49 Rename Renames the currently selected list to the user defined name Working with the Data Logger Copy List to USB Copies the selected list to a connected USB storage device as a CSV file A default file name is proposed but can be edited Remote command SAVEACTIVELIST2USB on page 53 Next Empty List Selects the next list in the index that does not yet contain data This is useful to start a new list rather than appending data to an existing data list when the data logger is star ted Clear AII Lists Clears all lists in the index All data in the lists is deleted Remote command CLEARALLLISTS On page 49 Back to List View Returns to the Data Logger list view for the selected list 5 3 6 Selecting Parameters in the Data Logger List You can define which data is logged and displayed for the currently selected list This view is displayed when you press the MEM key in GBAS SCAT I mode and then select Select Params Fig 5 6 GBAS SCAT Data Logger parameter and time slot selection Working with the Data Logger For more information on selecting parameters for the Data Logger see Selecting parameters on page 14 Select for LOG iii a aiii 42 Drag and Drop Changing the order of the parameiers s
7. lt Channel This command returns the description of the contents of one line in the logged data The result can be used as a header row for a result table for example One line corresponds to the captured data at the receive frequency for the GBAS sig nal in one time slot For details on the returned values see the chapter A 2 Format Description of GBAS and SCAT I Data on page 61 Setting parameters lt ListType gt Channel Example Retrieving Results FULL SHORT FULL Returns headers for the complete list of logged data as descri bed in chapter A 2 Format Description of GBAS and SCAT I Data on page 61 SHORT Returns headers for an extract of the list of logged data as described in chapter A 2 Format Description of GBAS and SCAT Data on page 61 112 Channel assigned to the receiving antenna RF board currently irrelevant but required GBAS GETMDEF FULL Returns the header row for a complete table of logged data GBAS GETMEAS lt ListType gt lt Channel gt lt Channel lt TimeSlot gt lt TimeSlot gt This command returns the contents of one line in the logged data For details on the returned values see the chapter A 2 Format Description of GBAS and SCAT I Data on page 61 Setting parameters lt ListType gt lt Channel gt lt TimeSlot gt Example FULL SHORT FULL Returns the complete list of logged data as described in chap ter A 2 Fo
8. one time slot a VDB transmitter transmits exactly one burst The GBAS specification 1 defines the TDMA timing structure including timing budget of the VDB bursts burst data contents and message encoding in great details The R amp S EVS300 receives the required training sequence decodes the message accord ing to 1 and demodulates the D8PSK modulated data automatically 3 3 Final Approach Segment FAS Construction Data According to the standard 1 the message type 4 contains one or more data sets that contain approach data associated vertical lateral alert limits and or the Terminal Area Path TAP The FAS path is a line in space that defines the path an airplane follows on its final approach This line is defined by the Landing Threshold Point Fictitious Threshold Point LTP FTP Flight Path Alignment Point FPAP Threshold Crossing Height TCH and the Glide Path Angle GPA Data Acquisition with the Data Logger E gt 5 FPAP D E gt 2 FPAP Ki Earth s surface Sl WGS84 ellipsoid Fig 3 3 Final Approach Segment FAS diagram according to 1 LTP FTP Landing Threshold Point Fictitious Threshold Point point at the center of the landing runway defined by its WGS84 coordinates GPIP Glide Path Intercept Point the point where the final approach path intercepts the local level plane FPAP Flight Path Alignment Point point at the end of the runway that in conjunction
9. option R amp S EVS300 K2 is installed the GPS mode is available The GPS view now includes information on a detected or manually specified reference point and the distance between the currently received GPS data and the indicated reference point The new command to define the reference point is described here For all other GPS related commands see the main R amp S EVS300 User Manual scole 48 SETUP GPSREF lt Latitude gt lt Longitude gt By default the reference point for GPS information is automatically taken from the position of the built in GPS antenna of the R amp S EVS300 However it can be changed manually to any other position using this command Parameters Latitude degrees minutes direction Latitude of the reference point in degrees minutes decimal for mat and direction S N Longitude degrees minutes direction Longitude of the reference point in degrees minutes decimal format and direction W E Example SETUP GPSREF 89 44 123456789S 23 55 123456789S Configuring the Data Logger You can define which data is stored during the measurement For details on the Data Logger see chapter 3 4 Data Acquisition with the Data Log ger on page 13 Useful commands for the Data Logger described elsewhere e chapter 7 5 Configuring Time Synchronization with the R amp S EVS300 Clock on page 55 Configuring the Data Logger Remote commands exclusive to configuring the Data Log
10. protected from overload while avoiding signal distortion for weak signals The attenua tion mode changes the sensitivity of the input connector by selecting a different signal path for each mode The valid input levels for each mode are indicated by a color bar in the GBAS SCAT I main view The attenuation mode should be selected such that the input level always remains within the green area Att Mode The following attenuation modes are provided Low Noise For signal levels in the range of 90 dBm to 53 dBm Provides a high sensitivity Suitable when scanning the area for distant signals as the noise level is kept low and high level signals are not to be expected Normal For signal levels in the range of 65 dBm to 23 dBm Provides a normal sensitivity Suitable when a signal has been detected in the distance and only medium level signals are expected Low Distortion For signal levels in the range of 35 dBm to 13 dBm Provides a low sensitivity and high protection Suitable when analyzing a nearby signal to avoid overload due to high level signals Working with the Data Logger LN AGC For signal levels in the range of 90 dBm to 20 dBm The signal attenuation is selected automatically according to the sig nal strength in each slot Since the signal offers only a very short period of time for such AGC operations this mode works best with clean signals In difficult receiv ing conditions it may be more stable to use the Low
11. 02 02 20 Message Type 1 Differential Corrections MT1 View RRC m s Spr m B1 m B2 m B3 m B4 m For details on the correction data parameters refer to the GBAS specification 1 4 3 2 SCAT I Message Type 1 View The message type 1 view displays further details on the differential correction data contained in the message In order to see the detailed SENI dala me SES R amp S EVS300 K10i is ose ba on 1 page 2 SCAT MESSAGE TYPE 1 Ser Message Hsg Block Station Hsg Len Hsg Bl ID byte CRC 1 1 EHHS 103 OK Z count m s 05 42 3 AccErrBound m s Do not use Kmd_gnd 5 35 S PRC IOD RRC Sp Bp Sf Bf S PRC IOD RRC Sp Bp S Bf ID m m s m m m m ID Del m s Em Em m m 4 14 88 0 000 0 18 0 1 0 18 0 1 MILI 0 50 57 0 008 0 16 01 0 16 01 34 0 002 0 34 0 1 0 34 0 1 meme 2 78 32 0 006 0 26 0 0 0 26 0 0 SIE AE 2 66 26 0 002 0 12 0 0 0 12 0 0 12 2 66 76 0 0000 120 00 120 0 28 ILI BULUM 29 6 00 12 0 018 0 34 0 2 0 34 0 2 14 0 08 71 0 0000 16 0 0 0 160 0 30 es a 31 0 84 86 0 002 0 18 0 0 0 18 0 0 5 32 6 84 95 0 0140 34 0 1 0 34 0 1 mes mom cnr ee ot al Fig 4 4 SCAT I Message Type 1 view At the top of the window the information for the selected message block from the Time Slot view is displayed see table 4 4 4 4 Message Type 4 Final Approach Segment Data FAS DB View Beneath the mess
12. 14 Selecting parameters For each list you can define which parameters are to be displayed and stored by the Data Logger and in which order Thus you can save storage space if not all parame ters are relevant for the current measurement scenario If you add further parameters to the selection after logging the columns and headers will be added to the list how ever the contents of those columns will remain empty Only in subsequent data logs the new parameters will be available On the other hana if you reduce the number of selected parameters the display is restricted immediately However the logged parameter values remain available on the instrument When a list is stored to a file a header line is automatically included that describes the provided parameters In remote operation the individual parameter selection is not considered Only a com plete or a short list of parameters can be selected Selecting time slots Furthermore you can select from which time slots data is logged which can also reduce the required storage space for the data list Note however that if no time slots are selected data logging can not be activated For a detailed description of the stored data see the chapter A 2 Format Description of GBAS and SCAT Data on page 61 Time synchronization for longterm measurements For longterm measurements you can configure data logging to start a new list every hour of the day see Logging Mode o
13. 217 2 see chapter A 1 Ref erences on page 61 The R amp S EVS300 K9 K10 applications feature e Receiving GBAS signal data from a GBAS ground station in a frequency range between 108 000 and 117 975 MHz with a channel spacing of 25 kHz e Receiving SCAT I signal data from a SCAT I ground station in a frequency range between 108 025 and 117 95 MHz with a channel spacing of 25 kHz e Analyzing the RF characteristics signal strength and frequency accuracy of the GBAS SCAT I signal e Demodulating decoding and displaying GBAS SCAT I signal data e Analyzing up to 8 time slots or individual time slot details in the GBAS SCAT I sig nal data Analyzing individual Final Approach Segment FAS data blocks e Logging and storing up to 9999 lists of received GBAS SCAT I signal data This user manual contains a description of the functionality that the application pro vides including remote control operation All functions not discussed in this manual are the same as in the base unit and are described in the R amp S EVS300 User Manual The latest version is available for down load at the product homepage e Installing and Activating the GBAS and SCAT I Analysis Applications 7 e Starting the GBAS and SCAT I Analysis Applcatton 9 Installing and Activating the GBAS and SCAT I Analy sis Applications The GBAS and SCAT I Analysis applications require an additional option R amp S EVS300 K9 GBAS or R amp S EVS300
14. 300 User Manual Conventions used in Remote Command Descriptions Note the following conventions used in the remote command descriptions Command and parameter syntax All commands and parameters described here are case insensitive e Default unit This is the unit used for numeric values if no other unit is provided with the parame ter Manual operation If the result of a remote command can also be achieved in manual operation a link to the description is inserted The following tasks specific to the GBAS and SCAT I Analysis application are descri bed here e Activating GBAS and GCAT IAnalveis sese 46 e Configuring GBAS and GCATIAnalvsis nt 47 Configuring the GPS Reference Polit cepere iia ots 48 e Configuring the Data Eogget ie a aa 48 e Configuring Time Synchronization with the R amp S EVS300 Clock 55 e Activating a Data SI Gam ence dei 57 e Retrieving Resulls crm ed ec ee ka nnde cei aes cu pae ERE ene 58 Activating GBAS and SCAT Analysis GBAS and SCAT I Analysis requires a special application on the R amp S EVS300 A measurement is started immediately with the default settings MODE OBOS Mer EE EE 46 Activates the GBAS SCAT I mode 7 2 Configuring GBAS and SCAT I Analysis Usage Setting only Configuring GBAS and SCAT I Analysis The following commands are required to configure GBAS and SCAT I analysis GBAS FREQR tito eren uere et eee a 47 GBAS FREQIRE
15. 4 Switching off Automatically Data Logger oooocccnconnccinocccocicanncaanccnno 34 Synchronization R amp S EVS300 Clo rt gets 14 35 T ST OS E e TC 12 Terminal Area Path TAP 2 12 Threshold Crossing Height TCH ooococonccnnincninnnccccccconons 12 Time axis erem 28 Time domain allocation il eet e 12 Time slots Data Logger crrr snini et id ei Os eia teri n 14 Details de Displayed information sse 17 A mE Result display e Selected Synchronization Time synchronization Data Logger iniaa a rear ias ees e te Dn st nx 14 35 Time zone R amp S EVS300 ClOCK ioyes etti tenete renim uen 36 Timing GBAS c eats 12 Trigger Count Data Lodi iaa 34 Data Logger ceret cie ee d i ne n iat rt adis 33 Edge Data Loggen scair 3e i eite a es 34 Troubleshooting Cisco ot 45 Results display iii idos 45 Slot assigi Meninas read 45 UNCAL usina 45 U UNCAL Troubleshooting scit oe aia 45
16. 7 R amp S EVS300 K9 K10 Result Displays GBAS MESSAGE TYPE 1 Ser Message Hsg Block Station Hsg Len Hsg Bl Nr Type ID ID byte CRC 1 1 NORM GLSF 116 OK Z count m s 14 36 5 SATIOD PRC RRC Spr B1 B2 B3 B4 Add Msg Flag single msg m m s m m m m m NrofPRCs 9 0 46 0 004 0 22 0 00 0 00 0 00 11 99 0 009 0 36 0 05 0 00 0 05 ue Lc merca 3 88 0 005 0 24 0 05 0 00 0 00 Eph CRE MSB 3A hex 50 0 001 0 12 0 00 0 05 0 05 EN 52 0 002 0 18 0 00 0 00 0 05 AE 2 02 0 001 0 22 0 00 0 00 0 00 Barat 7 79 0 000 0 34 0 00 0 00 0 00 0 001 0 14 0 00 0 00 0 05 0 002 0 18 0 05 0 00 0 00 SLOT VIEW Fig 4 3 GBAS Message Type 1 view At the top of the window the information for the selected message block from the Time Slot view is displayed see On the left hand side of the window the following satellite independant information is displayed Table 4 5 Displayed satellite independant information for each type 1 message in MT1 view Z count m s Add Msg Flag No of PRCs Meas Type Decorr P m m Eph CRC MSB Eph CRC LSB Avail Durat s In addition the following details for the differential correction data from up to 12 satel lites are displayed in the MT1 view in the order of reception Table 4 6 Displayed correction data for each satellite in MT1 view SAT ID IOD PRC m User Manual 1176 9212
17. Configuration and Analysis eese 31 Defining the Receive Frequency ceeeeeeeeeeeeeeeeenennnn nennen nennen nnn 31 Setting the RF Input Attenuation eeseeeeeeeeneeeenennen nennen nnne nnns 31 Working with the Data Loggger eeeeeeeeeeneeneeennnnennnen enne nnne nent nnn 32 Optimizing and Troubleshooting Analysis 45 Remote Commands to Perform GBAS and SCAT Analysis 46 Activating GBAS and SCAT Analysis eene nnne 46 Configuring GBAS and SCAT Analysis eene enn 47 User Manual 1176 9212 02 02 3 7 3 7 4 7 5 7 6 7 7 A 1 A 2 Configuring the GPS Reference Point eese 48 Configuring the Data Logger eeeeesseseeeeeeeeeeeenne nennen nennen nnn nnn nnne nnne 48 Configuring Time Synchronization with the R amp S EVS300 Clock 55 Activatirig a Data Stream ee eet iia 57 Retrieving Results eremo a 58 AMM eT 61 References a een 61 Format Description of GBAS and SCAT Data seen 61 Listof CNIS ia arate eee sheen tesa 67 p e M 68 About this Manual 1 Preface 1 1 About this Manual This GBAS and SCAT Analysis User Manual provides all the information specific to the appl
18. ES matte 59 GBAS EOGSEOTS inertem a ti deer GBAS STOPSTREAM aid EISE GETAC TIMBUNS EE GETFREEMEMORY CIBC E RE EE EISTMODE 2 ta 51 leie 46 SEELEN E 53 SEPECTUISERPARA AM aio 54 SETACTIVELIST ET SETUP GETSYNCSTATUS EE 55 SETUP GPSREE irrena para aa Na a EEEE S EAEE aa ed 48 SETUP NTPSERVER ET 55 SETUP TIMESYN CE outs Een EE ea te ted 56 SETUP TIMESY NE a 56 SETUR TIMEZONE mU 56 SERIES HI MEN Eege eene 56 Index Symbols 24 7 D ta Logger ooi b EE 34 A Activating GBAS SCAT I remote A 46 Allocating the VDB to the time domain Principle a i rr ttr nit 12 Angle GPS Reference poiht racer neret 30 Attenuation GOMPMQUIIING ERE iieiaei 31 Auto Power Down Data LOGGER E 34 C Copying Lists to USB nenne cce inary 39 41 Correction data GBAS dein M sen cl 20 Graphical display Micra 27 SGA busca 22 Cursor PRG gra phi nido aci n 28 44 D Data acquisition RED E 13 Data Logger ee 38 Automatic switchoff BASICS mossos O A P 33 CONMTQUENO WE 32 Format descriptilO esee trece eter gees 61 inp M R 34 EU A 26 MiS reas 2 309 39 LOGGING TMOG vss crac 34 Main view 38 EE 41 RPS SynchroniZalO insta sarta 33 PRC graph z REMO der SAA AI 39 STELLT o secco oen CA Source function CE Starting eec aM ele EEE 37 Time synchronization 14 35 EDI e n 33 Data
19. ETUP TIMESYNC NTP Manual operation See Time Sync on page 36 SETUP TIMEZONE SETUP TIMEZONE Offset Defines or queries an offset in hours to the normal time UTC provided by the GPS or NTP server The offset is considered for time synchronization of the internal R amp S EVS300 clock Parameters lt Offset gt numeric value Range 12 to 12 Default unit h Example SETUP TIMEZONE 1 Manual operation See Time zone on page 36 Activating a Data Stream 7 6 Activating a Data Stream Data for a running measurement can be output to an external storage medium inde pendantly of the Data Logger For details on data streaming see chapter 3 5 Data Streaming on page 14 GBAS STREAM PH 57 GBAS STOP STREAM EE 57 GBAS STREAM lt ListType gt lt Channel gt lt Channel lt TimeSlot gt lt TimeSlot gt This command starts sending a data stream with the results of the specified channel and time slots to the remote control device The data stream continues until the GBAS STOPSTREAM command is executed Setting parameters lt ListType gt FULL SHORT FULL Outputs the complete list of data as described in chapter A 2 Format Description of GBAS and SCAT I Data on page 61 SHORT Outputs an extract of the list of data as described in chapter A 2 Format Description of GBAS and SCAT I Data on page 61 Channel 112 Channel assigne
20. GBAS and SCAT I Analysis ser Manual 1176 9212 02 02 User Manual This manual applies to the following R amp S9EVS300 models with firmware version 5 2 and higher e R amp S9EVS300 3544 4005 02 For exceptions see the data sheet The following firmware options are described e R amp S EVS300 K9 GBAS Analysis 5202 8154 02 e R amp S EVS300 K10 SCAT I Analysis 5201 7783 00 The firmware of the instrument makes use of several valuable open source software packages For information see the Open Source Acknowledgement on the user documentation CD ROM included in delivery Rohde amp Schwarz would like to thank the open source community for their valuable contribution to embedded computing O 2015 Rohde amp Schwarz GmbH amp Co KG M hldorfstr 15 81671 M nchen Germany Phone 49 89 41 29 0 Fax 49 89 41 29 12 164 E mail info rohde schwarz com Internet www rohde schwarz com Subject to change Data without tolerance limits is not binding R amp S is a registered trademark of Rohde amp Schwarz GmbH amp Co KG Trade names are trademarks of the owners The following abbreviations are used throughout this manual R amp S9EVS300 is abbreviated as R amp S EVS300 R amp S9EVS300 K9 K10 Contents 2 1 2 2 3 1 3 2 3 3 3 4 3 5 3 6 4 1 4 2 4 3 4 4 4 5 4 6 4 7 5 1 5 2 5 3 7 1 7 2 Contents e m 5 About this EQ e A
21. GPS Sat 24 GPS Status 25 GPS Fix 26 GPS HDOP 27 GPS_VDOP 28 GPS Dist m Distance between GPS reference point and current GPS position Format Description of GBAS and SCAT I Data No Column Description 29 GPS Angle Angle between GPS reference point and current GPS position 30 ATT MODE Attenuator mode during slot measurement LN NORM LD In AUTO mode the used hardware setting GBAS Signal MT1 After the general information if the slot contains a message type 1 the following burst data is provided for each of the up to 32 satellites in full list only Table 1 2 Decoded message type 1 data for the individual slot and each satellite GBAS Column Description MT1 GBAS Section label separator in list MB CRC MB ID Message block ID e 1010 1010 normal LAAS message GBAS e 1111 1111 test LAAS message GBAS Stat ID Received Station ID equivalent to GBAS ID or SCAT ID MsgLen byte Z Cnt m s Add Msg Flag NrOfMeasn MeasnType EphDecorPar m m EphemCrcMSB EphemCrcLSB SrcAvailDur sec SatlD IOD PRC m RRCor m s S pr gnd m DiffnprcB1 m DiffnprcB2 m DiffnprcB3 m DiffnprcB4 m For details on the correction data parameters refer to the GBAS specification 1 Format Description of GBAS and SCAT I Data MT4 If the slot contains a mess
22. K10 SCAT I When you purchase these Installing and Activating the GBAS and SCAT I Analysis Applications options Rohde amp Schwarz provides the necessary license key This key must be acti vated before the applications can be started In order to install the R amp S EVS300 K9 or the R amp S EVS300 K10 options firmware ver sion 5 1 or higher is required on the R amp S EVS300 Both the R amp S EVS300 K9 and the R amp S EVS300 K10 options add the common GBAS SCAT I mode to the R amp S EVS300 However in order to see the detailed GBAS data MT1 View MT4 View MT1 Graph see chapter 4 Result Displays on page 16 the option R amp S EVS300 K9 is required In order to see the detailed SCAT I data MT1 View MT4 View MT1 Graph see chapter 4 Result Displays on page 16 the option R amp S EVS300 K10 is required To activate the license key 1 Press the SETUP key 2 Press the key below SK7 to switch to the Setup GeneralSettings window 2 2 3 Press the Options softkey to display an overview of all available R amp S EVS300 options 4 Press the ENTER button to open an input edit field for KEY 5 Enter the license key number as provided by Rohde amp Schwarz Note the license key consists of 18 numbers separated by commas 6 Press ENTER to confirm the entry If the key is valid the purchased options are enabled and identified as available in the overview available availabl
23. WN e 34 Logging MOTO os 34 Logging Channels Selects the channel RF board 1 or 2 to be logged Logging Source Specifies the function that defines when and how often data is logged time A time interval defines how often data is logged ext trigger When the specified number of pulses was received from an external trigger Ext Trigger Count the R amp S EVS300 logs a single data set time ext Data is logged in the specified time interval and additionally when an trigger external trigger is received A data set that was logged due to a trig ger is indicated by a status flag T time PPS A time interval defines how often data is logged The GPS time in the data sets is synchronized with the PPS signal of a connected GPS receiver to ensure a common time reference This setting requires a GPS receiver with PPS to be connected to the R amp S EVS300 Working with the Data Logger Logging Interval Defines the interval of logging in hours and minutes in seconds decimal format or both Each time the interval is completed a single data set is logged Ext Trigger Count If an external trigger is used as the Logging Source this parameter specifies how many pulses the connected device must send before data logging is triggered Ext Trigger Impulse If an external trigger is used as the Logging Source this parameter specifies whether rising positive or falling negative edges are counted o
24. Working with the Data Logger Sample Xdiv Defines the scaling of the x time axis as the number of samples displayed per divi sion Predefined values between 5 and 500 are available PRC Ydiv Defines the y axis scaling for the PRC graph as the meters displayed per division Pre defined values between 0 2 m and 200 0 m are available Dist Ydiv Defines the y axis scaling for the distance to reference point trace as the meters dis played per division Predefined values between 0 1 m and 20 0 m are available Cursor 2 2 Sets the cursor vertical red line to the data entry selected by its index in the Data Logger list The position of the cursor on the x axis as well as the time of the selected list entry is indicated above the diagram This softkey is available on the second softkey page for the PRC graph Back to List View Returns to the Data Logger list view for the selected list 6 Optimizing and Troubleshooting Analysis If the results do not meet your expectations possibly the following information will help Emormessago UN CA Louis dis 45 Unstable results display 2 A E 45 Incorrect slotassIg Tiki aiii 45 No valuesdisplayed cirea rentes data ne epiac e Erreur eus dnde 45 Error message UNCAL Error which might cause incorrect results Solution Reboot the instrument If the error persists a hardware error may be the cause Contact your Rohde amp Schwarz service representative Unst
25. able results display Possible solutions e Define a suitable input attenuation mode manually rather than using LN AGC mode see chapter 5 2 Setting the RF Input Attenuation on page 31 e Check the status of the PPS signal in the main view If the status is NOK check the GPS receiver connection See also chapter 3 6 Time Slot Synchronization via PPS on page 15 Incorrect slot assignment Possible solution Check the status of the PPS signal in the main view If the status is NOK check the GPS receiver connection Using an oscilloscope check the PPS signal Each pulse per second should have a maximum duration of 1 ms See also chapter 3 6 Time Slot Synchronization via PPS on page 15 No values displayed Possible solution Restart the internal signal processing by pressing the checkmark key on the front panel of the R amp S EVS300 in the navigation area beneath the rotary knob T O d 7 1 Activating GBAS and SCAT I Analysis Remote Commands to Perform GBAS and SCAT I Analysis The following commands are required to perform measurements in the GBAS and SCAT I Analysis application in a remote environment It is assumed that the R amp S EVS300 has already been set up for remote operation in a network as described in the R amp S EVS300 User Manual Note that basic tasks that are also performed in the base unit in the same way are not described here For a description of such tasks see the R amp S EVS
26. age block information the following satellite independant information is displayed Table 4 7 Displayed satellite independant information for each type 1 message in MT1 view Z count m s AccErrBound m s Kmd_gnd In addition the following details for the differential correction data from up to 12 satel lites are displayed in the MT1 view in the order of reception Table 4 8 Displayed correction data for each satellite in MT1 view SAT ID PRC m IOD RRC m s Sp m Sf m Bf m For details on the correction data parameters refer to the SCAT specification 2 Message Type 4 Final Approach Segment Data FAS DB View If the time slot contains one or more messages of type 4 further constructional details on the final approach segment contained in the message can be displayed in the MT4 view A time slot may contain multiple messages of type 4 from different final approach segments Each segment is uniquely identified by its Reference Path ID Thus you can display the details for a particular reference path by selecting one of up to 46 Reference Path Data Selector s The displayed information differs for GBAS and SCAT I signals In order to see the detailed GBAS data the option R amp S EVS300 K9 is required see chapter 2 1 Installing and Activating the GBAS and SCAT I Analysis Applications on page 7 In order to see the detailed SCAT I data the opt
27. age type 4 the following decoded message data is provided for each of the up to 15 FASDBs in full list only Table 1 3 Decoded message type 4 data for the individual slot and each FASDB GBAS Column Description MT4 GBAS Section label separator in list MB CRC MB ID Message block ID e 1010 1010 normal LAAS message GBAS e 1111 1111 test LAAS message GBAS Stat ID Received Station ID equivalent to GBAS ID or SCAT ID MsgLen byte DataSetLen OpType SbasServProv AirportlD RunwayNo RunwayLtr ApproachPerfDesig Routelnd RPDS RefPathID LTP_FTP_Lat LTP FTP Long LTP FTP Height m DeltaFPAP Lat DeltaFPAP Long TCH UnitTCH GPA CourseWidth m DeltaLenOffset m VertAlertLim m LatrAlertLim m FASCRC Format Description of GBAS and SCAT I Data SCAT Signal MT1 After the general information if the slot contains a message type 1 the following burst data is provided for each of the up to 32 satellites in full list only Table 1 4 Decoded message type 1 data for the individual slot and each satellite SCAT I Column Description MT1 SCAT Section label separator in list MB CRC MB ID Message block ID e 1001 1001 SCAT I Stat ID Received Station ID equivalent to GBAS ID or SCAT ID MsgLen byte Z Cnt m s Acc Err Bnd m s s
28. ameters and approach path information produces a GBAS correction message and sends it the VDB transmitter The VDB transmitter modulates and enco des this message and broadcasts it to the airborne GBAS equipment for example a GBAS receiver in the airplane The GBAS equipment in the airplane is a high precision multimode receiver that evaluates the message and applies corrections parameters to improve the navigation algorithms from GPS This list outlines the three signals transmitted between the components and referred to as GBAS Signal in Space e GNSS satellite to GBAS ground subsystem navigation signal GNSS satellite to GBAS airborne subsystem navigation signal e GBAS ground subsystem to GBAS airborne subsystem VHF data broadcast Carrier frequencies and frequency channels The VHF data broadcast is defined for carrier frequencies within the range of 108 025 MHz to 117 975 MHz and carrier spacing of 25 0 kHz Broadcast Timing Structure 3 2 Broadcast Timing Structure The broadcast is a Time Division Multiple Access TDMA According to 1 the TDMA timing structure uses a two level hierarchy composed of 500 ms long frames each divided into 8 VDB time slots A H see figure 3 2 500ms Frames A Pa N Sg E N 8VDB time sits amp TBTCTDTETFTGTH TS1_ _TS8 Fig 3 2 TDMA timing structure simplified representation A VDB time slot is the minimum resource that an individual VDB transmitter can use During
29. aphical user interface elements on the screen such as ments dialog boxes menus options buttons and softkeys are enclosed by quotation marks KEYS Key names are written in capital letters Typographical Conventions Convention Description File names commands File names commands coding samples and screen output are distin program code guished by their font Input Input to be entered by the user is displayed in italics Links Links that you can click are displayed in blue font References References to other parts of the documentation are enclosed by quota tion marks Installing and Activating the GBAS and SCAT I Analysis Applications 2 Welcome to the GBAS and SCAT I Analysis 2 1 Application The R amp S EVS300 K9 K10 options are firmware applications that add functionality to perform GBAS and SCAT I Analysis on the R amp S EVS300 The K9 option enables you to receive and analyze the very high frequency VHF Data Broadcast VDB Signal in Space transmitted from a Ground Based Augmentation System GBAS ground subsystem to the airborne subsystem This implementation is in line with the specification RTCA DO 246D 1 see chapter A 1 References on page 61 Similarly using option K10 data from special category SCAT I systems can be received and analyzed The main difference is the content of the message data This implementation is in line with the specification RTCA DO
30. as described in chapter A 2 Format Description of GBAS and SCAT I Data on page 61 Default Selection Restores the default selection of the parameters according to the factory defaults as described in chapter A 2 Format Description of GBAS and SCAT I Data on page 61 Back to List View Returns to the Data Logger list view for the selected list Working with the Data Logger 5 3 7 Configuring the PRC Graph The information in the data log for a single slot and a single satellite can also be dis played graphically in the Pseudorange Correction Data Graph PRC Graph This view is displayed when you press the MEM key in GBAS SCAT I mode and then select PRC Graph TI Li i L y JPRC m SAT 15 00m 2mDiv Fig 5 7 GBAS SCAT I PRC graph The diagram can be configured using the following functions Se Ez T Dp Co A CD DD DTE 43 TIMO MO OD m 43 Eege Ducum de ee eelere 43 EEN ua 44 FREN OV C 44 BI e eR ET 44 IR C Aaa 44 B ck tO Gu 44 Start Index Defines the starting point of the x time axis Time Slot Selects the time slot 0 to 7 for which data is displayed in the graph Trace Sat Selects one trace that is one satellite 1 to 32 for which data is highlighted white in the graph All other satellite traces are indicated by gray lines
31. ation is successful see SETUP TIMESYNC on page 56 If the R amp S EVS300 clock differs from the selected synchronization source time by more than 1000 ms the R amp S EVS300 clock is adjusted accordingly Return values Offset Deviation in ms Example SETUP TIMESYNC NTP SETUP NTPSERVER 10 0 2 166 SETUP GETSYNCSTATUS 0 001 Usage Query only Manual operation See Time Sync on page 36 SETUP NTPSERVER lt IPAdress gt Defines the IP address of the NTP server used for time synchronization of the internal R amp S EVS300 clock see SETUP TIMESYNC on page 56 Configuring Time Synchronization with the R amp S EVS300 Clock Parameters lt PAdress gt TCP IP address between 0 0 0 0 and 0 255 255 255 Example SETUP TIMESYNC NTP SETUP NTPSERVER 10 0 2 166 Usage Setting only Manual operation See NTP Server on page 36 SETUP TIMESYNC SETUP TIMESYNC Source Defines or queries the time source with which the R amp S EVS300 clock is synchronized If the R amp S EVS300 clock differs from the selected synchronization source time by more than 1000 ms the R amp S EVS300 clock is adjusted accordingly Parameters Source OFF No synchronization is performed for the internal R amp S EVS300 clock GPS Synchronization with a connected GPS see the main R amp S EVS300 User Manual NTP Synchronization with a connected NTP server see SETUP NTPSERVER on page 55 Example S
32. chronization sources Off No synchronization is performed for the internal R amp S EVS300 clock GPS Synchronization with a connected GPS see the main R amp S EVS300 User Manual NTP Synchronization with a connected NTP server see NTP Server on page 36 Remote command SETUP TIMESYNC on page 56 SETUP GETSYNCSTATUS on page 55 Time zone GPS and NTP usually provide normal time UTC In order to take a time zone differ ence into account on the R amp S EVS300 define an offset in hours Remote command SETUP TIMEZONE on page 56 NTP Server The NTP server for time synchronization is specified by its IP address under Setup Remote Control Working with the Data Logger 192 168 1 107 10 0 2 166 Fig 5 3 NTP Server configuration Remote command SETUP NTPSERVER on page 55 5 3 3 Starting and Stopping the Data Logger You can start and stop the Data Logger manually Starting the Data Ree 37 Stepping the Data Logger e ee e e een e x e I Re Ree 38 Starting the Data Logger Press the START key to start logging data for the selected time slots The data received from the selected channel and the selected receive frequency is stored inter nally and can be streamed via remote control or displayed on the screen see PRC Graph View on page 39 Note Be aware that if no time slots are selected for logging see chapter 5 3 6 Selecting Parameters in the Data Logge
33. ctbine P 56 12 03 2014 17 45 39 574 34 c 114 67 P 57 12 03 2014 17 45 39 656 34 E 114 P 58 12 03 2014 17 45 40 074 34 c 114 Copy x P 59 12 03 2014 17 45 40 156 34 E 114 to USB P 60 12 03 2014 17 45 40 574 34 c 114 P 61 12 03 2014 17 45 40 656 34 E 114 P 62 12 03 2014 17 45 41 074 34 c all P 63 12 03 2014 17 45 41 156 34 E 114 P 64 12 03 2014 17 45 41 574 34 C 114 P 65 12 03 2014 17 45 41 656 34 E 114 SH P 66 12 03 2014 17 45 42 074 34 co 114 P 67 12 03 2014 17 45 42 156 34 a v Params gi e List Size 67 Free CF 215MB gas Sac Fig 4 7 GBAS SCAT Data Logger List view Each data entry is represented by a unique index in the chronological order it was recorded Furthermore for each entry the time it was logged is stored Up to 30 parameters can be displayed for each data entry if available You can select the parameters and time slots whose information is to be displayed individually For a description of the individual parameters see on page 61 Furthermore the following general list information is provided beneath the list Label Description List Size Number of data entries within the current list Free CF Available memory on the internal compact flash card User Manual 1176 9212 02 02 26 Pseudorange Correction Data Graph PRC Graph O To scroll through the parameters of an entry use the rotary knob The information in the data log can also be displayed graphically in the Pseudorange Co
34. d to the receiving antenna RF board lt TimeSlot gt 0 1 2 3 4 5 6 7 Numbers of the time slots for which the results are to be output Example GBAS STREAM FULL 12 24 Starts streaming the full list of results for channels 1 and 2 in time slots 2 and 4 Usage Setting only GBAS STOPSTREAM This command stops the data stream Return values lt EventResult gt READY Command was executed successfully ERROR An error occurred command was not successful Usage Event Retrieving Results 7 7 Retrieving Results The following commands are required to retrieve the received data Useful commands for retrieving results described elsewhere GBAS FREORF on page 47 GBAS ATTMODE on page 47 Remote commands exclusive to retrieving results GBASPMBAS 58 GBAS GETMDPBE erit teret tene cata 58 GBAS IGETMEAS naina miii ies A d eds d aea 59 GBAS LEV set 59 GBAS FMEAS lt TimeSlot gt This command queries the difference between the measured frequency and the nomi nal receive frequency for the GBAS signal in the specified time slot Query parameters lt TimeSlot gt 0 1 2 3 4 5 6 7 Time slot Return values lt DeltaFreq gt Default unit kHz Example GBAS FMEAS 2 Queries the measured delta frequency for time slot 2 Usage Query only GBAS GETMDEF lt ListType gt lt Channel gt
35. e available available available Fig 2 1 Available R amp S EVS300 options If the key is not valid the entered number is displayed in red Starting the GBAS and SCAT I Analysis Application gt Fig 2 2 Invalid option key Correct the number and try again 2 2 Starting the GBAS and SCAT I Analysis Application The GBAS and SCAT I Analysis application adds a new mode to the R amp S EVS300 gt To activate the GBAS SCAT I mode press the SPLIT button and select the GBAS SCAT I option The main GBAS SCAT I window is displayed Remote command MODE GBAS on page 46 PPS input recommended It is strongly recommended that you connect the PPS signal of the GPS receiver to the trigger input of the R amp S EVS300 Although it is possible to operate the R amp S EVS300 without the PPS signal connected this may lead to an incorrect assignment of the data to the time slots For details see chapter 3 6 Time Slot Synchronization via PPS on page 15 GBAS Specifics 3 Basics on GBAS and SCAT I Analysis The following topics summarize some background information on the GBAS and other avionics related standards The provided overview information is intended as an explanation of the used terms and does not aim to be comprehensive A RO 10 e Broadcast Timing Str otute aisiceeicuc cinese retentione ia 12 e Final Approach Segment FAS Construction Data 12 e Data Acquisition with the Data Logge
36. ed by the remote control device using other means 3 6 Time Slot Synchronization via PPS The data captured by the R amp S EVS300 is assigned to the eight time slots and then decoded A PPS signal from a connected GPS receiver can help the R amp S EVS300 detect the individual time slots accurately In this case the positive slope of the PPS signal indi cates the time 0 for slot A Data transmission may start from 1 5 ms before to 5 ms after the PPS Thus it is strongly recommended that you connect the PPS signal of the GPS receiver to the trigger input of the R amp S EVS300 Although it is possible to operate the R amp S EVS300 without the PPS signal connected this may lead to an incorrect assign ment of the data to the time slots The status of the PPS signal is indicated in the main view of the GBAS SCAT I mode The PPS signal should be as short as possible with a maximum duration of 1 ms Lon ger signals may cause errors at the AC coupled trigger input of the R amp S EVS300 Note that the default PPS duration on many GPS receivers is 100 ms Triggering on PPS In order to ensure a common time reference between multiple measured data sets data logging can be triggered such that the GPS time in the data sets is synchronized with the PPS signal of a connected GPS receiver see Logging Source on page 33 Overview of Captured Data Main View 4 Result Displays The data that was received by the R amp S EVS300 can be eva
37. elected for logging Example Deselect all parameters for logging SELECTLISTPARAM NONE Select the first 5 parameters in the list for logging SELECTLISTPARAM 1 2 3 4 5 See table 1 1 Example Select all parameters for logging SELECTLISTPARAM ALL Deselect the GPS parameters for logging SELECTLISTPARAM 119 2120 21 122 123 124 125 126 127 Manual operation See Select Params on page 39 SETACTIVELIST lt ListNo gt This command selects one of the 999 possible lists for subsequent Data Logger tasks in the GBAS SCAT I mode Setting parameters lt ListNo gt integer list number Range 1 to 999 7 5 Configuring Time Synchronization with the R amp S EVS300 Clock Return values lt EventResult gt READY Command was executed successfully ERROR An error occurred command was not successful Example SETACTIVELIST 2 Usage Setting only Manual operation See Select List on page 39 See Select List on page 40 Configuring Time Synchronization with the R amp S EVS300 Clock In order to improve accuracy in longterm data logging you can synchronize the R amp S EVS300 clock to a GPS or NTP server TEEN dl KREE 55 SETUPINTP SERVER o O 55 SETUP TIMES YING oi dd tn tia 56 SETUP TIMESTA e ai 56 SETUP TIMEZONE ERU 56 en NERT el LEE 56 SETUP GETSYNCSTATUS Queries the current offset of the internal R amp S EVS300 clock from the time synchroniza tion source if synchroniz
38. en two samples need not be equal if the data was not logged continuously Each data entry is represented by an index The start index and the scaling of the x axis are user definable The actual time of an individual data entry is indicated when you position a cursor on a particular data entry see below Cursor A cursor is available to select an individual data log entry The cursor is indicated as a vertical red line and can be positioned to any available list entry in the data log The position of the cursor on the x axis as well as the time of the selected list entry is indi cated above the diagram 4 7 GPS Information Es PRC m SAT 14 008m 00m 2mDiv Fig 4 9 Cursor in the Data Logger GPS Information In addition to the specific GBAS SCAT I data the captured GPS data may be of inter est If option R amp S EVS300 K2 is installed the GPS mode is available The GPS view now includes information on a specified reference point and the distance between the currently received GPS data and the specified reference point GPS Information Fig 4 10 GPS view with additional information on GPS reference point The following information has been added e Ref Lat Latitude of the reference point in degrees minutes decimal format and direction e Ref Long Longitude of the reference point in degrees minutes decimal format and direction e Dist from Ref Distance of the received GPS pos
39. esult gt READY Command was executed successfully ERROR An error occurred command was not successful Example GETLISTSIZE This command queries the size of the active list Return values lt NoEntries gt integer Number of entries in the active list Range O to 1000 000 LISTMODE lt Mode gt This command defines how often the active list which is used for logging is switched Configuring the Data Logger Parameters Mode SINGLE Default The same active list is used continuously When the list is full logging is stopped WEEK For each day of the week starting Monday a different list is activated After one week the first list is cleared and logging starts in this list again MONTH For each day of the month a different list is activated After one month the first list is cleared and logging starts in this list again 24 7 After each hour a new list is activated For each day of the week specific lists are used Monday lists 100 to 123 Tuesday lists 200 to 223 Wednesday lists 300 to 323 etc After one week the first list is cleared and logging starts in this list again 24 31 After each day of the month after each hour a new list is activa ted For each day of the month specific lists are used First day lists 100 to 123 Second day lists 200 to 223 etc 31st day lists 3100 to 3123 After one month the first list is cleared and logging starts in this list again This is useful to d
40. etermine the used list at a specific time easily Return values lt SettingResult gt READY Setting was successfully applied ERROR An error occurred setting was not successful Example LISTMODE MONTH Manual operation See Logging Mode on page 34 GBAS LOGSLOTS lt Channel gt lt Channel lt TimeSlot gt lt TimeSlot gt This command defines the slots to be logged by the Data Logger Tip to select the parameters to be included in data logging use the SELECTLISTPARAM command Configuring the Data Logger Setting parameters lt Channel gt 112 Channel assigned to the receiving antenna RF board lt TimeSlot gt 0111213 41 5 6 7 Numbers of the time slots for which the results are to be logged By default the results for all time slots are logged Return values lt EventResult gt READY Command was executed successfully ERROR An error occurred command was not successful Usage Setting only SAVEACTIVELIST2USB lt Filename gt This command copies the active list to a connected USB storage device as a CSV file with the specified name Note that this command may be very time consuming for long lists max 1 000 000 entires To reduce the amount of logged data restrict it to specific time slots or parameters or both See SELECTLISTPARAM on page 54 and CBAS LOGSLOTS on page 52 Parameters Filename string Path file name and extension of the file on the USB device to which the data
41. ger CLEARACTIWVELIST tbtt tt te ktts tt teart teart Aes E EASE AEAEE AnA a rrearen areenaa 49 LEARAER O O SS 49 A e E 49 D ME I A A A A 50 O alata noel 50 GETFREEMEMORY coccion 50 EE 51 DETIENE aria iia 51 ASE a ias 51 O T D T TR 52 SAVEACTIVELISTOLSEL essit ii ca p ec pneter 53 SELECTLISTPARAM v scsscsssscsscscssescssescseessssesussvsessvsesavessavsnsatssaveesavsesatsevansesacsesatsesansass 54 EEN AE Ae 54 CLEARACTIVELIST This command clears the currently active list All entries are deleted Return values lt EventResult gt READY Command was executed successfully ERROR An error occurred command was not successful Example SETACTIVELIST 2 Defines list 2 as the active list CLEARACTIVELIST Clears list 2 Manual operation See Clear List on page 39 CLEARALLLISTS This command clears all 999 list for the GBAS SCAT I mode All entries are deleted in all lists Return values lt EventResult gt READY Command was executed successfully ERROR An error occurred command was not successful Manual operation See Clear All Lists on page 41 DL_START Starts logging data for the selected time slots and the currently selected parameters until the DL STOP command is executed The data received from the selected channel and the selected receive frequency is stored internally Configuring the Data Logger To reduce the amount of logged data restrict it to specific time slots or parameters or b
42. green area of the color bar adjust attenuation 4 2 Time Slot Details Received Messages Time Slot View Remote commands Querying results GBAS LEV on page 59 GBAS FMEAS on page 58 GBAS GETMDEF on page 58 Time Slot Details Received Messages Time Slot View Detailed information for each of the time slots is available in the Time Slot view To display this view select the Slot View softkey in the main window or any other GBAS SCAT I window Time slot details in the Time Slot view are always displayed for the slot currently selected in the main view This slot is highlighted To change the selected slot select the Time Slot softkey and select a different slot number 0 A 71 8 0 06 0 GLSF 1824 NORM OK OK 0 5 0 4 2 4 3 Fig 4 2 Information on received messages for an individual time slot At the top of the Time Slot view the general information for the time slot from the main view is repeated for reference for a description of the information see chap ter 4 1 Overview of Captured Data Main View on page 16 In addition the following information on the received message blocks in the selected time slot is displayed 4 3 4 3 1 Message Type 1 Differential Corrections MT1 View Table 4 4 Displayed information for each message block in the slot in Time Slot view Column Description Ser Nr Serial number of message Message Type Message type 1 2 4 11 M
43. ication All general instrument functions and settings common to all applica tions are described in the main R amp S EVS300 User Manual The main focus in this manual is on the analysis results and the tasks required to obtain them The following topics are included e Welcome to the GBAS and SCAT I Analysis Application Introduction to and getting familiar with the application Result Displays Details on result displays e GBAS and SCAT Analysis Basics Background information on basic terms and principles in the context of the analysis e GBAS and SCAT Configuration Analysis A concise description of all functions and settings available to configure measure ments and analyze results with their corresponding remote control command e Optimizing and Troubleshooting the Analysis Hints and tips on how to handle errors and optimize the test setup e Remote Commands for GBAS and SCAT Analysis Remote commands required to configure and perform GBAS and SCAT I Analysis in a remote environment sorted by tasks Commands required to set up the environment or to perform common tasks on the instrument are provided in the main R amp S EVS300 User Manual Annex Reference material e List of remote commands Alpahabetical list of all remote commands described in the manual e Index 1 2 Typographical Conventions The following text markers are used throughout this documentation Convention Description Graphical user interface ele All names of gr
44. ion R amp S EVS300 K10 is required see chapter 2 1 Installing and Activating the GBAS and SCAT I Analysis Applications on page 7 R amp S9EVS300 K9 K10 Result Displays 4 4 1 GBAS Final Approach Segment Data GBAS FAS DB View The details for a particular reference path are displayed in the GBAS FAS DB view To display this view select the M TYPE 4 VIEW softkey in the Time Slot view To view the details for a different reference path select Sel FASDB and then select one of the available Reference Path Data Selectors RPDS from the list on the left hand side In order to see the detailed GBAS data the option R amp S EVS300 K9 is required see on page 7 GBAS FAS DB RefPath Data Sel RPDS 29 RefPath ID A101 21 25 26 FAS Data Length byte 41 28 29 30 Operation Type FAS Data 32 33 34 SBAS Service Provider 14 Airport ID GLSF 36 37 38 Runway Number 1 40 41 42 Runway Letter no letter 44 45 46 Appr Perform Designat GAST C Route Indicator Zz LTP FTP Latitude 50 05145000N LTP FTP Longitude 8 59542403E BOIEASUB LTP FTP Height m 189 0 29 Delta FPAP Latitude 0 0125300 Delta FPAP Longitude 0 0523100 Thres Cross Height 15 00 Thres Cross Height Unit meters Glide Path Angle 3 00 r Course Width at Thr m 105 00 SLOT Delta Length Offset m 120 VIEW FAS DATA BLOCK CRC OK FAS Vert Alert Lim m 10 0 FAS Later Alert Lim m 35 0 Fig 4 5 GBAS Final Approach Segment Data
45. ist is activated For each day of the month specific lists are used First day lists 100 to 123 Second day lists 200 to 223 etc 31st day lists 3100 to 3123 After one month the first list is cleared and logging starts in this list again This is useful to determine the used list at a specific time easily See also chapter 5 3 2 Synchronizing the R amp S EVS300 Clock on page 35 Remote command LISTMODE on page 51 5 3 2 Synchronizing the R amp S EVS300 Clock For longterm measurements you can define data logging where a new list is started every hour of the day see Logging Mode on page 34 To determine when to start a new list the Data Logger refers to the operating system clock of the R amp S EVS300 In order to improve accuracy you can synchronize this clock to a GPS or NTP server These settings are available when you press the SETUP key and then select General Settings 14 01 2015 14 53 15 Fig 5 2 Time Synchronization settings Working with the Data Logger MISS NO A al De ga Sete Ed 36 TIME ZONE nena lona 36 NEED E AE IEEE Tx AN 36 Time Sync Defines the time source with which the R amp S EVS300 clock is synchronized The cur rent offset from the source is indicated next to the input field if synchronization is suc cessful If the R amp S EVS300 clock differs from the selected synchronization source time by more than 1000 ms the R amp S EVS300 clock is adjusted accordingly Supported syn
46. ition from the indicated refer ence point e Angle Ref Angle of the received GPS position from the indicated reference point Reference point The reference point is preset to a default position However it can be changed man ually to any other position To change the position of the reference point select the Ref Point Latitude or Ref Point Longitude softkey Select the softkey again to toggle between the degree minute and direction information Remote command SETUP GPSREF on page 48 For more information on the GPS mode see the main R amp S EVS300 User Manual 5 5 1 5 2 Defining the Receive Frequency Configuration and Analysis GBAS and SCAT I Analysis require a special application on the R amp S EVS300 which you activate using the SPLIT key on the front panel e Defining the Receive Frequency ente enne tinent Ri 31 e Setting the RF Input Attenuaton nennen nennen 31 e Working with the Data Logd cicer ctore rere eee es 32 Defining the Receive Frequency The frequency at which data is received from the ground station is configured via the FREQ key The currently recieved frequency is indicated in the GBAS SCAT I main window Remote command RF GBAS FREORF on page 47 Setting the RF Input Attenuation The input attentuation mode determines the sensitivity of the input channel Depending on the level of the incoming signal the input connector of the R amp S EVS300 must be
47. luated in increasing detail e Overview of Captured Data Main View 16 e Time Slot Details Received Messages Time Slot View 18 e Message Type 1 Differential Corrections MT1 View 19 e Message Type 4 Final Approach Segment Data FAS DB View 22 e GBAS SCAT Data Logger List View 26 e Pseudorange Correction Data Graph PRC Graphie 27 GPS A rd certe n Febr ai bad renta d td e 29 4 1 Overview of Captured Data Main View When you activate GBAS SCAT I mode the main view displays an overview of the captured data in all eight slots You can return to this view from most other views by selecting the Main View softkey Fig 4 1 Application specific elements in the GBAS SCAT I main view 1 Receive frequency in MHz 2 Pulse per second PPS status from GPS 3 Overview of captured data in all 8 slots 4 Measured power level in the selected slot 5 Color bar for power level Overview of Captured Data Main View The following general information is displayed for a GBAS SCAT measurement Table 4 1 Displayed general information for a GBAS SCAT I measurement Label Element Description FREQ MHz Receive frequency in MHz PPS Status Pulse per second PPS status from GPS if error occurs measurement results may be invalid check GPS receiver connection The overview of captured data displays the following data for each of the 8 time slots Table 4 2 Dis
48. n page 34 This is useful to determine the used list at a specific time easily To determine when to start a new list the Data Logger refers to the operating system clock of the R amp S EVS300 In order to improve accuracy you can synchronize this clock to a GPS or NTP server see chapter 5 3 2 Synchronizing the R amp S EVS300 Clock on page 35 If the R amp S EVS300 clock differs from the selected synchronization source time by more than 1000 ms the R amp S EVS300 clock is adjusted accordingly Data Streaming In addition to the Data Logger which can be operated both manually and remotely a data streaming function is provided for remote operation As opposed to the Data Log ger which stores the measurement results internally in lists the data streaming func tion outputs the results directly to the connected remote control device synchronously with the measurement Thus the results can be analyzed on the remote device during an on going measurement The internal storage with its lists is bypassed entirely no results are stored on the R amp S EVS300 Using the R amp S EVS300 s remote commands for streaming you can specify which time slots and channels to output and whether a full or only a short list of parameters is streamed However more detailed timing parameters as for the data logger are not Time Slot Synchronization via PPS available for streaming Functions other than starting and stopping the data stream must be controll
49. n the signal from the trigger device Auto Power Down If enabled the R amp S EVS300 automatically switches off after each measurement Two minutes before the next measurement is due the R amp S EVS300 automatically boots again in order to be ready in time Thus this function is only useful for time intervals larger than five minutes in order to save battery power Logging Mode Defines how often the active list which is used for logging is switched Note If the list is full before the specified switching time logging is stopped single The same active list is used continuously When the list is full logging is stopped week For each day of the week starting Monday a different list is activa ted After one week the first list is cleared and logging starts in this list again month For each day of the month a different list is activated After one month the first list is cleared and logging starts in this list again 24 7 After each hour a new list is activated For each day of the week spe cific lists are used Monday lists 100 to 123 Tuesday lists 200 to 223 Wednesday lists 300 to 323 etc After one week the first list is cleared and logging starts in this list again This is useful to determine the used list at a specific time easily See also chapter 5 3 2 Synchronizing the R amp S EVS300 Clock on page 35 Working with the Data Logger 24 31 After each day of the month after each hour a new l
50. nnected USB storage device as a CSV file A default file name is proposed but can be edited Remote command SAVEACTIVELIST2USB on page 53 List Index Displays an overview of all available Data Logger lists For details see chapter 5 3 5 Managing Data Logger Lists on page 39 Select Params Selects the parameters and time slots for which data is displayed For details see chapter 5 3 6 Selecting Parameters in the Data Logger List on page 41 Remote command SELECTLISTPARAM on page 54 PRC Graph View Displays the Pseudorange Correction Data Graph PRC Graph of the displayed data list The diagram can be configured see chapter 5 3 7 Configuring the PRC Graph on page 43 for details 5 3 5 Managing Data Logger Lists Up to 9999 lists with a maximum of 1 000 000 data lines each can be recorded in GBAS SCAT I mode These lists can be managed in the Data Logger list index view Working with the Data Logger Fig 5 5 Data Logger list index view This view is displayed when you press the MEM key in GBAS SCAT I mode and then select List Index A A BI OTIO 40 igi M 40 Rea MO E 40 Copy List to eebe estet a i 41 eren OUEL orines o a A 41 Clear AMS cana 41 AA E 41 Select List Selects an individual list in the data log list index Scroll through the entries in the index using the rotary knob or the Up Arrow and Down Arrow keys Note that the
51. oth See SELECTLISTPARAM on page 54 and GBAS LOGSLOTS on page 52 In the default settings the short list of parameters as specified in table 1 1 are selected Return values lt EventResult gt READY Command was executed successfully ERROR An error occurred command was not successful Usage Event Manual operation See Starting the Data Logger on page 37 DL_STOP Stops logging data Return values lt EventResult gt READY Command was executed successfully ERROR An error occurred command was not successful Usage Event Manual operation See Stopping the Data Logger on page 38 GETACTIVELIST This command retunrs the number of the currently active list for the Data Logger in the GBAS SCAT mode Return values lt ListNo gt integer list number Range 1 to 999 Example SETACTIVELIST 2 Defines list 2 as the active list GETACTIVELIST Queries the number of the active list Result 2 GETFREEMEMORY This command queries the amount of free storage space on the internal flash memory Configuring the Data Logger Return values lt FreeMemSize gt Default unit MByte GETLISTDATA lt ListNo gt This command queries the contents of the selected list Setting parameters lt ListNo gt integer list number Range 1 to 999 Return values lt ListData gt Contents of the list as described in chapter A 2 Format Description of GBAS and SCAT I Data on page 61 lt EventR
52. played information for each captured slot in main view Column Description Slot Slot 0 to 7 A to H Level dBm Measured power level DeltF kHz Delta between measured frequency and nominal receive frequency SS ID Received station slot identifier Stat ID Received station ID equivalent to GBAS ID or SCAT ID TLen bit Transmission length in bits MsgB ID Message identifier to distinguish GBAS SCAT messages TrS FEC FEC of the training sequence App FEC FEC of the data content Cycle sec Time difference between the last 2 incoming bursts ElapT sec Elapsed time since the last burst reception Selected slot One of the slots is always selected for display or further analysis this slot is highligh ted To change the selected slot select the Time Slot softkey and select a different slot number Time slot details in the Time Slot view are always displayed for the currently selected slot In addition to the information displayed in the overview the following information is highlighted for the selected slot in the GBAS SCAT I main view Table 4 3 Highlighted information for the selected slot in the main view Label Element Description LEVEL dBm Measured power level in the selected slot Color bar Position of measured power level within range of valid values according to data sheet for valid measurements ensure the power level is within the
53. r 13 e Data SUCAMINO EE 14 e Time Slot Synchronization vla PPS cotta c ded eerta dct ttt dett 15 3 1 GBAS Specifics GBAS is a ground based augmentation system that can enhance satellite navigation The GBAS is intended to improve aircraft safety and to enhance satellite navigation and the full range of precision approach and landing procedures as well as the termi nal area operations GBAS components The illustration in figure 3 1 is a simplified representation of the GBAS three main com ponents e the GNSS satellite subsystem e the airborne subsystem e the GBAS ground subsystem The ground equipment consists of four reference GNSS receivers at exactly defined positions around the airport GBAS ground station and a VHF data broadcast transmit ter VDB GBAS Specifics e GNSS Satellites SEAS wey vm Glonass MSS e GBAS Reference P VDB Transmitter Je Receiver GBAS Ground Station Fig 3 1 GBAS components and signals simplified representation 1 GNSS reference receiver 2 GBAS ground station 3 VHF data broadcast VDB transmitter a GNSS navigation message b Pseudorange c GBAS Correction message d VDB signal The GBAS GNSS reference receivers receive the GNSS navigation message perform pseudorange measurements and transmits this information to the GBAS ground sta tion The GBAS ground station determines errors in the calculated positions adds additional par
54. r List on page 41 logging cannot be acti vated You can select which parameters are displayed see chapter 5 3 6 Selecting Parame ters in the Data Logger List on page 41 Remote command DL START on page 49 Working with the Data Logger Stopping the Data Logger Press the STOP key to stop logging data Remote command DL STOP on page 50 5 3 4 Analyzing the Data Logger Entries The stored data can be output graphically on the screen or as a data stream in remote operation Press the MEM key to display the main Data Logger view Fig 5 4 Main Data Logger view Select LSE EE 39 Cea l O O 39 COCR ENG EE Me UC TTE A MEER 39 Mosa rU 39 list Index uie rre rrt eee OI 39 eelere TE EE 39 PRE Gap E 39 Working with the Data Logger Select List Selects one of up to 9999 data set lists for analysis The contents of the currently selected list are displayed in the overview When the data logger is started the data is appended to the currently selected list Remote command SETACTIVELIST on page 54 Clear List Clears the currently selected list All entries are deleted Remote command CLEARACTIVELIST on page 49 Select Line Selects an individual data entry in the data log Scroll through the entries in the list using the rotary knob or the Up Arrow and Down Arrow keys Note that a single list may contain up to 1 000 000 entries Copy List to USB Copies the selected list to a co
55. re tr 42 e riti e s EP etit e dd 39 42 Selectirig remote cortice cierre eee tti neas 61 Shortlist nsus in A A Dames de 42 PPS BASICS qp Duration C mic cli Synchronization Data Logger TWIG GETING EE PRC graph Configuring ET EE A Result display TEE MME EE Traces X axis Y axis Pseudorange correction data see PRG gtraplt cria 27 R Receive frequency Belt le Diet WE Reference path data selector RPDS Selecting ai ioca metere astu d testi ere Reference point Ale aca P EE 1i teo tt en eer Dart n ca Distance Sa GPS ERR PRC Graph seio te imer dr esci ve cha Sisto bnc dc 27 Donc EE 48 Renaming Pta cian v its eege Don ewe s PNE ia 40 Result displays Data Logger list view seseeee 26 FAS BREUI C 22 GBAS SCAT main view e 16 MIT view a19 MT4 view 22 PRC graph d Time SOME Weir Sm er neca hne ico e thoi oett 18 Results Retrieving remote incor 58 Results display ee e BE 45 RF input attenuation COMMMQUMING atu rro 31 RF level PRC OPM 27 S SCAT I Data omar ist 61 FAS DB VIEW Em 24 Message type 1 data 65 Message type 4 data ze 65 MITT MIGW inei 3 221 Specific smart oia an 61 Short list TE UE 61 Slots Assignment troubleshooting essssss 45 Status AA O aira 62 Streaming RE 1
56. red see chapter 2 1 Installing and Activating the GBAS and SCAT I Analysis Applications on page 7 Message Type 4 Final Approach Segment Data FAS DB View Fig 4 6 SCAT I Final Approach Segment Data FAS DB view The following specific FAS DB data is displayed Table 4 10 Displayed FAS DB for a single SCAT I reference path in SCAT I FAS DB view Reference Path Data Selector Reference Path ID Operation Type Airport ID Runway Number Runway Letter Route Indicator Validity Indicator TD Point Latitude TD Point Longitude TD Point Height m DERP Latitude DERP Longitude Thres Cross Height R amp S EVS300 K9 K10 Result Displays Glide Path Angle GPA FAS DATA BLOCK CRC 4 5 GBAS SCAT Data Logger List View The GBAS SCAT 1 mode provides a data logger function You can specify when and how long the data is logged In the list view the logged data is provided as an overview To display this view select the MEM key in GBAS SCAT 1 mode GBAS SCAT Data Logger Saa Index Date Time Temp C SLOT FRE 1 P 49 12 03 2014 17 45 37 656 34 E m P 50 12 03 2014 17 45 38 075 34 e 11H P 51 12 03 2014 17 45 38 156 34 E 114 P 52 12 03 2014 17 45 38 574 34 c 114 Clear List P 53 12 03 2014 17 45 38 656 34 E 114 P 54 12 03 2014 17 45 39 075 34 c 114 P 55 12 03 2014 17 45 39 156 34 e 114 Bele
57. rmat Description of GBAS and SCAT I Data on page 61 SHORT Returns an extract of the list of logged data as described in chapter A 2 Format Description of GBAS and SCAT I Data on page 61 112 Channel assigned to the receiving antenna RF board 0 11 213 4 5 6 7 Numbers of the time slots for which the results are to be returned By default the results for all time slots are returned GBAS GETMEAS FULL 12 24 Returns the full list of results for channels 1 and 2 in time slots 2 and 4 GBAS LEV lt TimeSlot gt This command queries the most recently measured power level at the receive fre quency for the GBAS signal in the specified time slot Retrieving Results This command is identical to the general R amp S EVS300 LA query Query parameters lt TimeSlot gt 0 1 2 3 4 5 6 7 Time slot Return values lt Level gt Default unit dBm Example GBAS LEV 2 Queries the measured power level for time slot 2 Usage Query only Manual operation See Att Mode on page 31 A A 1 A 2 References Annex References e 1 RTCA DO 246D GNSS Based Precision Approach Local Area Augmentation System LAAS Signal in Space Interface Control Document ICD e 2 RTCA DO217 Minimum aviation system performance standards DGNSS instru ment approach system Special Category SCAT I DO 217 August 1993 Format Description of GBAS and SCAT I Data The Data Logger records and manage
58. rrection Data Graph PRC Graph For further functions available for data logs see chapter 5 3 4 Analyzing the Data Log ger Entries on page 38 4 6 Pseudorange Correction Data Graph PRC Graph The PRC graph displays the data from the data logger graphically It displays the pseu dorange correction data contained in messages of type 1 in the stored data log To display this view select the PRC Graph softkey from the GBAS SCAT Data Logger list view In order to see the SCAT I correction data graph the option R amp S EVS300 K10 is required see chapter 2 1 Installing and Activating the GBAS and SCAT I Analysis Applications on page 7 The graph displays three traces e yellow the RF level in dBm measured in the time slot versus time e green distance in meters between the GPS reference point and the decoded GPS location see also chapter 4 7 GPS Information on page 29 e white pseudorange correction PRC data in meters vs time for the specified slot and satellite For each trace the start value stop value and scaling per division is indicated in the table above the diagram The scaling for each trace can be defined individually Pseudorange Correction Data Graph PRC Graph Fig 4 8 Graphical display of pseudorange correction data contained in a message of type 1 Time axis The x axis indicates the time of the data log entry However the time axis need not be linear and the duration in time betwe
59. s the data captured during one or a series of measurements Up to 999 lists with a maximum of 1 000 000 data lines each can be recorded One line corresponds to the captured data at the receive frequency for the GBAS signal in one time slot Similarly a data stream consists of lines of measurement results where one line corre sponds to the captured data at the receive frequency for the GBAS signal in one time slot You can also query a single measurement result which corresponds to one row in the Data Logger list In all three cases the available parameters and their format are identical Which parameters are logged and in which order is user definable and can be defined individually for each list The following overview describes all available parameters complete list in their default order The format of the data for each slot is identical regardless whether a parameter con tains data or not This allows you to create a table from the exported comma separated list If a slot is empty only the general data is stored in the list entry the message spe cific parameters are cropped When a list is stored to a file a header line is automatically included that describes the provided parameters General Information The following general information is always included regardless whether the slot con tains data or not and whether the signal is GBAS or SCAT type O The number No in the following table is required to
60. select the individual parameters to be logged in remote operation see SELECTLISTPARAM on page 54 The parameters in this table are included in the short list for remote operation Format Description of GBAS and SCAT I Data Table 1 1 General information for the individual slot No Column Description Channel RF board 1 or 2 1 STIOCP Status Flags e S Start started manually e T Triggered externally e Invalid power level not permitted or too low e O Overload RF input signal too high e C Corrected includes RF input correction factor e P PPS synced triggered by external PPS 2 Index Counts each measurement 3 Date Date of measurement 4 Time Time of measurement 5 Temp C Temperature on R amp S EVS300 mainboard 6 SLOT Time slot A B C D E F G H 7 FREQ MHz Receiving frequency 8 F_DEV kHz Frequency deviation 9 LEVEL dBm Level measured over the Synchronization and Ambiguity Resolution period of the GBAS SCAT signal 10 SSID Received Station ID equivalent to GBAS ID or SCAT ID 11 Len bit Length of the entire message block 12 Train FEC FEC of the training sequence 13 Applic FEC FEC of the data content 14 MBI Message block identifier 15 MT 1 Message type 1 available YES NO 16 MT 4 Message type 4 available YES NO 17 GPS lat Received GPS data 18 GPS long 19 GPS alt m 20 GPS speed km h 21 GPS date 22 GPS time 23
61. sg Block ID Message block ID 1001 1001 SCAT I e 1010 1010 normal LAAS message GBAS e 1111 1111 test LAAS message GBAS Station ID Received station ID equivalent to GBAS ID or SCAT ID Msg Len byte Message length Msg Bl CRC Message block CRC For message types 1 and 4 further details can be displayed Message Type 1 Differential Corrections MT1 View If the time slot contains a message of type 1 further details on the differential correc tion data contained in the message can be displayed in the MT1 view it is assumed that no more than one message of this type is available per slot To display this view select the M Type 1 View softkey in the Time Slot view The displayed information differs for GBAS and SCAT I signals In order to see the detailed GBAS data the option R amp S EVS300 K9 is required see chapter 2 1 Installing and Activating the GBAS and SCAT I Analysis Applications on page 7 In order to see the detailed SCAT I data the option R amp S EVS300 K10 is required see chapter 2 1 Installing and Activating the GBAS and SCAT I Analysis Applications on page 7 GBAS Message Type 1 View The message type 1 view displays further details on the differential correction data contained in the message In order to see the detailed GBAS data the option R amp S EVS300 K9 is required see chapter 2 1 Installing and Activating the GBAS and SCAT I Analysis Applications on page
62. ssssessssssrrsssssrrsrssenssssennn 42 legal 42 Siam 42 REI ERA 42 arises DE 42 isle qoM 42 Select for Logg Toggles the selection for the currently highlighted parameter or time slot for logging If the parameter or time slot was previously already selected it is deselected All param eters and slots selected for logging are displayed with a green background To scroll through the list of available parameters and time slots use the rotary knob or the Up Arrow and Down Arrow keys Only the parameters selected for logging are displayed and stored in the data log Note that if no time slots are selected data logging can not be activated Drag and Drop Changing the order of the parameters Marks the selected parameter with a blue background to move it to a different posi tion in the list Use the rotary knob to select the new position within the list Select Drag and Drop again to insert the selected parameter at the new position Note that the data is stored in this order Select All Selects all parameters and all time slots for logging Select None Deselects all parameters and all time slots for logging Note Be aware that if no time slots are selected for logging logging cannot be activa ted Default Order Restores the default order of the parameters according to the factory defaults
63. storage Data LOGGER M 13 Data streaming A Remote Differential corrections FRESUIEGISDIAY e rosita 19 Distance GPS Reference point esco trennen 30 E Exporting pata O USB roer soe 39 41 External trigger Count Data Loggen cornisa ronca 34 Data Logger sg OO Impulse Data LOGGCR err tremere rr rera 34 F FAS DB view AS ect ces 23 Result display 22 SCATA eeseueueriegeeseeeeeusd ce 424 Fictitious Threshold Point FTP a src 12 Final Approach Segment FAS data Daga E Result display serios psoe see also FAS DB Sec Flight Path Alignment Point FPAP sesen 12 Frequency COMMON G P R 31 G GBAS BASICS 10 Broadcast timing structure sess 12 lu IC 10 Correction message 22 44 Data format 401 FAS data 212 FAS DB view 229 Frequencies PR Message type 1 data tret entente 63 Message type 4 data eene 64 MT1 view iia A trt titt e ero pret Piss 61 GBAS SCAT mode Main VIEW T M 16 Result displays 16 Starting 9 Glide Path Angle GPA 2 1 retra ett 12 GPS Al iii it aaen eaa Dine ben Reference point he KI l Impulse External trigger Data Logger 0 0 0 0 eee eee 34 Index Data Logger lists comia 39 L Landing Threshold Poin
64. t LTP sse 12 Licenses ACUVALIAG e 7 Lists Clan ede ete een 39 40 41 Copying to USB inician 39 41 Data Logger tee e nene 38 Graphical results 99 SS tr ttt retention 39 Managing 398 39 Next emily rrt rc din e 41 Ereegnes EE 39 41 EA A OT 40 Logging data AD entered rtr 32 Logging interval Data Logger seeeeee 34 Logging mode Data Logger Logging source Data Logger Low distortion Attenuation AAA candi ccupegeteeureacteste 31 Low noise Attenuation mode iieis entrer reete 31 M Main view GBAS SOAT Iiode comas 16 Message type 1 Displayed information sse 19 GBAS EE 19 63 Result displasia di eth a ege 19 SGA Tal data ii ld tss iade 21 65 Message type 4 Displayed information sees 22 GBAS data Result display SCAT data Messages Displayed information sese 19 Final Approach Segment data cee eee eeee 22 MTA Vieira c 19 Modes GBAS SCA Tse 9 MT1 view Result display ras ross 19 MT4 view Ixesult display rindas 22 N NTP server Time synchronizatio sesion eene 36 O Options ActiValing cr ca 7 GBAS K9 ud Installing iii rr rr err a 7 SCATA LAO c erri tette eerte rie e 7 iii 9 P Parameters Data bogger rem eet 14 41 Default Order etri capere eee necnon 42 Default selection
65. will be stored Note that a specified path must already exist on the USB device otherwise an error occurs Return values lt EventResult gt MOUNT Preparing access to USB device COPY Copying files to USB device UNMOUNT Exiting USB device READY Command was executed successfully ERROR An error occurred command was not successful Example SETACTIVELIST 2 Defines list 2 as the active list SAVEACTIVELIST2USB DataLogs Mar2014 DataLogl csv Manual operation See Copy List to USB on page 39 Configuring the Data Logger SELECTLISTPARAM lt Params gt This command selects the parameters to be logged For details see chapter 5 3 6 Selecting Parameters in the Data Logger List on page 41 In the default settings the short list of parameters as specified in table 1 1 are selected Tip to select the time slots to be included in data logging use the GBAS LOGSLOTS command Parameters lt Params gt Parameters to be included in data log ALL All parameters are selected for logging Repeat the command with specific parameter numbers to exclude individual parameters in a subsequent step NONE All parameters are deselected Repeat the command with specific parameter numbers to include individual parameters in a subsequent step lt integer gt lt integer gt The parameters with the specified numbers are selected for log ging lt integer gt lt integer gt The parameters with the specified numbers are des
66. with the LTP FTP defines the geodesic plane of the precision final approach landing and flight path TCH 7 Threshold Crossing Height GPA 7 Glide Path Angle angle at the TCH that describes the intended angle of descent at the final approach path The coordinates of the LTP FTP are defined in WGS84 coordinates In this coordinate System a location is identified by three coordinates the altitude the latitude and the longitude 3 4 Data Acquisition with the Data Logger The Data Logger records and manages the data captured during a single measure ment or a series of measurements You can define when and how long data is stored and from which time slots Up to 9999 lists with a maximum of 1 000 000 data lines each can be recorded in GBAS SCAT I mode One line corresponds to the captured data at the receive frequency for the GBAS signal in one time slot Within a list each data entry is represented by a unique index Different lists can be used to store multi ple measurements at different times for example The data lists are stored on the internal compact flash card of the R amp S EVS300 The stored data can be output graphically on the screen or as a data stream in remote operation You can select the relevant parameters for analysis individually For further processing the data can be exported to a USB storage device in CSV format R amp S EVS300 K9 K10 Basics on GBAS and SCAT I Analysis 3 5 User Manual 1176 9212 02 02

R&S EVS GBAS and SCAT1 Options User Manual

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R&amp;S EVS GBAS and SCAT1 Options User Manual

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R&S EVS GBAS and SCAT1 Options User Manual