Coverage Mapping with GPS Application Note
Contents
1. Between Excellent and Very Good Between Very Good and Good fea Between Good and Poor Worse than Poor Anritsu 07 08 2010 11 05 45 am Current Value 50 0 dBm Back reg Aa YO OO wo Stat DataCotecton Figure 4 RSSI The thresholds for the dBm values can be altered so the measurement indications on the map are colored appropriately for the expected signal levels Data Collection Another setting that can be personalized is the way the data is recorded In the coverage mapping menu select Point Distance Time Setup Once there you can set the way it records data by either time or distance and the intervals of which it collects the data If the collection setting was set to time the instrument will plot a data point whenever the time set in Repeat Time is reached If the distance option was set the user receives a data point whenever the allocated distance is attained iNTItSU 06 24 2010 09 02 17 am 5 Sz Repeat Type Ime Distance BW Start Data Collection Amplitude Span Figure 5 Data Collection Settings Turning on GPS In order to coverage map with GPS Option 31 GPS is required To turn the GPS on press Shift System 8 and then the GPS soft key In the GPS sub menu you can turn the GPS on or off view GPS info change the GPS Voltage or reset the GPS Anritsu onst ws GY narrar w earar E N Ainritsu ose 0s124an GD merar wora E E O a GPS Stahri On Of Rer2. GPS Lock 121656 37 1476 7IS2Q010 22 13 22 7215020010 15 1303 Spectrum RSSI dBm 93 4 Setup Frequencs902500M REW 100 kHz WEW 10H2 Detection Rh 6 GPS Lock 121655 3714769 7160010 22 13 23 785000 15 13 05 Spectrum RSSidBm 96 6 Sewp Frequens302 500M REW 100kHz VEW 10 Hz Detection Ri 37 Point 11 GPS Lock 121 656 37 14778 7IS2010 221325 7152010 15 1307 Spectrum RSSidem 100 5 Setup Frequencs902 500 M REW 100 kHz VEW 10 Hz Detection Rh 38 Point 12 GPS Lock 121 656 3714787 752010 22132 m5200 15 1303 Spectrum RSSiidEm 99 9 Setup Frequence A025000 M REW 100 kHz VBW 10 Hz Detection Rly 39 Point GPS Lock 121 656 37 14796 752010 22 13 30 7 18 2010 15 13 11 Spectum RSSidBm 106 4 Setup Frequenn902 500M RW 100 kHz VBW 10Hz Detection Ri 40 Point 14 GPS Lock 121 656 37 14804 7152010 22 13 32 TASAOID 15 13 13 Spectrum RSSidem 109 7 Setup Frequencs902 500 M REW 100 kHz VEW 10 Hz Detection Ri A1 Point 15 GPS Lock 121655 JAg FAS2010 241337 TASO 15 1318 Spectrum RSSi dBm 101 Satup Frequenc 902 500 M RBW 100 kHz VEW 10Hz Detection Ri A2 Point 16 GPS Lock 121655 37 1482 7152010 22 13 39 7AS0I0 15 13 20 Spectrum RSSidBm 106 1 Setup FrequenciS902500M REW 100 kHz VBW 10Hz Detection Rh 43 Pointi 17 GPS Lock 121 655 37 14832 MASOMO 22 13 41 7ASQ010 15 1322 Spectrum RSSi dBm 96 4 Setup Frequencs902500M REW 100kHz VEW 10Hz Detection Ri 44 Point 18 GPS Lock 121 656 37 14843 7 152010 22 13 43 752010 15 1324 Spectrum RSSi dm 1085 Setup Frequenci902500M REW
3. 89 442308 0 Fax 49 0 89 442308 55 e Italy Anritsu S p A Via Elio Vittorini 129 00144 Roma Italy Phone 39 06 509 97 11 Fax 39 06 502 2425 e Sweden Anritsu AB Borgafjordsgatan 13 164 40 KISTA Sweden Phone 46 8 534 707 00 Fax 46 8 534 707 30 e Finland Anritsu AB Teknobulevardi 3 5 Fl 01530 VANTAA Finland Phone 358 20 741 8100 Fax 358 20 741 8111 e Denmark Anritsu A S for Service Assurance Anritsu AB for Test amp Measurement Kirkebjerg Alle 90 DK 2605 Br ndby Denmark Phone 45 7211 2200 Fax 45 7211 2210 e Russia Anritsu EMEA Ltd Representation Office in Russia Tverskaya str 16 2 bld 1 7th floor Russia 125009 Moscow Phone 7 495 363 1694 Fax 7 495 935 8962 e United Arab Emirates Anritsu EMEA Ltd Dubai Liaison Office P O Box 500413 Dubai Internet City Al Thuraya Building Tower 1 Suite 701 7th Floor Dubai United Arab Emirates Phone 971 4 3670352 Fax 971 4 3688460 e Singapore Anritsu Pte Ltd 60 Alexandra Terrace 02 08 The Comtech Lobby A Singapore 118502 Phone 65 6282 2400 Fax 65 6282 2533 e India Anritsu Pte Ltd India Branch Office 3rd Floor Shri Lakshminarayan Niwas 2726 80 ft Road HAL 3rd Stage Bangalore 560 075 India Phone 91 80 4058 1300 Fax 91 80 4058 1301 e P R China Hong Kong Anritsu Company Ltd Units 4 amp 5 28th Floor Greenfield Tower Concordia Plaza No 1 Science Museum Road T
4. that can support a wide range of signal types With the addition of Option 431 and the power of GPS Option 31 Coverage Mapping users can easily make signal strength measurements and create detailed maps and reports of system coverage 10 Notes Anritsu Anritsu Corporation 5 1 1 Onna Atsugi shi Kanagawa 243 8555 Japan Phone 81 46 223 1111 Fax 81 46 296 1238 e U S A Anritsu Company 1155 East Collins Boulevard Suite 100 Richardson TX 75081 U S A Toll Free 1 800 ANRITSU 267 4878 Phone 1 972 644 1777 Fax 1 972 671 1877 e Canada Anritsu Electronics Ltd 700 Silver Seven Road Suite 120 Kanata Ontario K2V 1C3 Canada Phone 1 613 591 2003 Fax 1 613 591 1006 e Brazil Anritsu Electronica Ltda Praga Amadeu Amaral 27 1 Andar 01327 010 Bela Vista Sao Paulo SP Brasil Phone 55 11 3283 2511 Fax 55 11 3288 6940 e Mexico Anritsu Company S A de C V Av Ej rcito Nacional No 579 Piso 9 Col Granada 11520 M xico D F M xico Phone 52 55 1101 2370 Fax 52 55 5254 3147 e U K Anritsu EMEA Ltd 200 Capability Green Luton Bedfordshire LU1 3LU U K Phone 44 1582 433280 Fax 44 1582 731303 e France Anritsu S A 12 Avenue du Qu bec Batiment Iris 1 Silic 638 91140 VILLEBON SUR YVETTE France Phone 33 1 60 92 15 50 Fax 33 1 64 46 10 65 e Germany Anritsu GmbH Nemetschek Haus Konrad Zuse Platz 1 81829 Munchen Germany Phone 49 0
5. 100kHz VEW 10Hz Detection Rhy 45 Point 19 GPS Lock 121 656 37 14848 750010 23 13 44 7080010 15 13 25 Spectum RSSi dBm 1101 Setup FrequennS02500M REW 100kHz VEW 10H Detection Rh AG Point 20 GPS Lock 121 656 37 14854 752010 221345 752010 15 1326 Spectum RSSidBm 110 9 Setup Frequencs902 500 M REW 100 kHz YEW 10 Hz Detection Rh 47 Point 21 GPS Lock 121 656 3 1861 7 152010 22 13 46 7152010 15 1327 Spectrum RSSi dBm 108 9 Setup Frequencs902500M REW 100kHz VEW 10Hz Detection Rh AB Point 22 GPS Lock 121 656 37 14659 7152010 22 13 45 7 15 2010 15 13 28 Spectrum RSSi dBm 1102 Setup Frequenc902 500M RBW 100 kHz VBW 10 Hz Detection Rhy 49 Point 23 GPS Lock 121 656 3714876 7 15 2010 22 13 47 7152010 15 13 29 Spectum RSSidBm 108 6 Setup Frequencs902500M REW 100kHz WBW 10Hz Detection Rh 60 Point 24 GPS Lock 121 6656 37 14683 7152010 221349 762010 15 1230 Spectrum RSSidBm 1088 Setup Frequencs902 500 M REW 100 kHz WEW 10 Hz Detection Rir SU omi GPS Lock 121 656 37 14892 752010 221360 7052010 15 1331 Spectrum RSSiidbm 106 1 Setup Frequent 902 500 M REW 100 kHz VEW 10Hz Detection Rh mee et ee te ee ee lee oe ee ee ee ee ee i T A Em sia I Ee ka Cee af ted iaDia i Ww Pita etre Fut or Rerdy asb ALCEE ie 4 ra Ain GPS Stat Longitude Latitude YV UTC Date UTC Time System Di System Ta Measurement 726 ji ki Figure 14 Viewing the Data The data can then be opened by other software programs for analysis and report gene
6. 12 GPS_F_LATITUDE N 37 8 48 13 GPS_FX_VALUE_TIME 1279234913 14 GPS_FX_VALUE_LON 1073204630 15 GPS FR VALUE LAT 1059453222 16 BASE_VER V3 40 gt NAME SPA PP _YER T4 51 0002 APP_MODE 1 Begin SPA Setup 22 lt APP_SETUP gt RSKO 1 lt APP_DATA gt GPS Lock 121 657 3714698 7152010 22 12 55 7AS AI0 15 12 36 Spectrum RSSidbm 5 Setup Frequencs902 500M ROW 100 kHz VEBW 10Hz Detection Rh GPS Lock 121656 S7 14703 TASO 221301 S2010 16 12 42 Spectrum RSsi dim 00 Setup Frequencs902 500 M REW 100 kHz YE 10 Hz Detection Rir GPS Lock 121656 37 1471 7AS 010 22 13 03 75 2010 15 12 45 Spectrum RSSI dBm 82 Setup Frequenci902500M REW 100kHz VBW 10Hz Detection Rh GPS Lock 121 656 3714719 752010 221306 7ASQOID 15 12 48 Spectrum RSSi dBm 36 5 Setup FrequencnS02 900M REVY 100 kHz VBW 10 Hz Detection Ri GPS Lock 121 656 37 14725 7 15 2010 22 13 10 FASANO 15 1251 Spectrum ASSi dm 3 6 Setup Frequenc 902 500 M REW t00 kHz YEW WHz Detection Rh GPS Lock 121656 3714736 TASO 221314 7052010 151255 Spectum RSSi dBm 107 1 Setup Frequencs902 500M REW 100 kHz VEW WHz Detection Ri GPS Lock 121 656 37 14746 7 15 2010 221317 7 5 2010 15 12 59 Spectrum RSSIidBm 6 5 Setup Frequenc 902 500M REV 100kHz YEW 10Hz Detection Rh GPS Lock 121656 3714752 7 15 2010 221319 7182010 151301 Spectrum RSSi dm 812 Setup Frequencs902 500M AEW 100 kHz VEW 10 Hz Detection Rh
7. Application Note inritsu Coverage Mapping with GPS With the Anritsu E Series Spectrum Master Cell Master and Site Master Option 431 Introduction Spectrum analyzers provide accurate RF power measurements over a wide frequency range With an antenna attached RF power measurement becomes Received Signal Strength RSSI RSSI measurements can be combined with on screen map displays to become a very versatile solution for mapping the coverage of RF transmitters The Anritsu E Series Spectrum Master Cell Master and Site Master models with spectrum analysis capability can include Option 431 Coverage Mapping This option supports the needs for both indoor and GPS coverage mapping In this application note you will learn how to fully operate the instrument with accordance to the coverage mapping with GPS process This type of mapping requires Option 31 GPS Instead of reporting your location to the instrument like in indoor mapping the GPS receiver will automatically pinpoint your location relative to the map Anritsu Map Master Note A USB flash drive is required to transfer MAP map files to the instrument To coverage map with GPS a PC software program called Map Master must be used in order to convert picture files captured from a map provider to a MAP map file for the instrument to read Map Master is located on the CD provided with the instrument or can be downloaded and installed from the Anritsu website www an
8. UTC date Column F the UTC time Column G the system date Column H the system time Column l the mode the instrument was in Column J what type of data was collected Column K the values recorded by the instrument Columns L AE corresponds to the setup of the instrument The way that the setup is organized columns N P R and T have the actual setting values and the preceding columns indicate the user of what exactly the following values mean Column N the frequency Column P the RBW setting Column R the VBW setting Column T the detection type The columns U AC shows the threshold values designated by the user earlier You can look at the value placed in column K and refer to columns U AC to determine the strength of the RF power measurement At the very end in the column AE errors if any are listed There are three possible values ADC over range saturation and none The colors shown by the instrument provide easy viewing for the user when determining signal strength but by viewing the file as a tab delimited file the actual raw data can be seen Microsofl Excel mi mid SS pa L 2 FLE pr MOGEL MSZ7 12E SM6307 9 1 0 12 19 21 25 27 28 29 0031 A SAAB SAMOA 142 43 44145 46 47 ET ROE 16216306 4165 05 67 7890 41 031506520522530532541542546 SN 1014035 5 UNIT_NAME EJ DESCR cardl usimh mid 8 DATE 2010 07 15 04 16 01 35 9 GPS FK AVAE 10 GPS FK TIME 07 15 2010 23 01 53 At GPS_FX_LONGITUDE W 121 39 23
9. et B is a cf A hid Amplitude Anpifude Span Bw Start Data Collection Span BW Start Data Collection Figure 6 System Menu Figure 7 GPS Sub Menu The GPS sub menu contains options essential for coverage mapping with GPS GPS Mapping To begin Coverage Mapping you first must open the MAP map file created earlier Insert the USB flash drive into the USB port of the instrument From there at the Coverage Mapping menu touch Save Recall Points Map In the Mapping Save Recall submenu touch Recall a Map Find the file from the USB you inserted and press Enter on the keypad The map should now appear on the screen If not done so already the instrument will attempt to lock the GPS by tracking at least three satellites Your location will then be set for you by the instrument relative to the map Once that s done touch the Start Data Collection key to get started The instrument will automatically update your location and record points as you move Once all the needed points have been plotted press Stop Data Collection to finish Anritsu 061772070 04 30 37 pa Tab Dalimibad Points Saver JPG Rical KMAL Points Omi Racal KML P inis LN Fecal Danaus it ooo o Figure 8 Recalling a Map From the Coverage Mapping menu select Save Recall Points Map and in the next menu Recall a Map Anritsu o7ns201011 2652 am GH N37 sar w 2 39 27 Scroll to File and Press E
10. l submenu from the Coverage Mapping Menu From there touch Save KML Points Save Tab Delimited Points or Save JPG A pop up save prompt comes up where the filename and file type can be changed Once finished press enter on the keypad or touch screen to save The file can then be copied to the USB transferred and opened Ainritsu 0771 52010032035 pm GB nares wieeaver E k ail gt il P Po Freg Amplitude Span BW Star Data Collection Figure 12 Saving Data Points Access the Mapping Save Recall submenu from the Coverage Mapping Menu ANT CSU oev24 2070 11 16 18 am Location Internal Memorusr Fiensne E Bee OOOO manana ee TIAA BRR E E Figure 13 Saving the File Change the needed fields and press Enter in order to save the file Analyzing the Data When saved as a tab delimited file mtd the points recorded by the instrument can later be opened by a program such as Excel to be viewed and analyzed Once opened looking at the file from top to bottom the first things you see are the rows 1 16 It has basic information such as the file mode model serial number and date the mapping was done The actual data below is divided into columns Columns A F is only relevant when coverage mapping with GPS but the columns G AE pertain to both coverage mapping methods Column A the point number Column B the status of the GPS Column C the longitude Column D the latitude Column E the
11. nter to Recall Freq Amplrtude Span BW Star Data Collection Figure 9 Selecting MAP file Select the MAP map file from the USB and press Enter on the keypad Anritsu o7s2010113315 an GP naveearwieresvae E sa a a FSA MH REW KHI Detection Figure 10 Position Stan Data Collection With the map on the screen the instrument automatically pinpoints your location relative to the map Anritsu o7si2010 031956 pm GP naveearwieesv2e E Eh he a i rA 7 Cochrane Fara Shangri Canter a ae lt aF h i Frequency RIH HEW KA Detection Freq Amplitude Span BW Stan Data Collection Figure 11 GPS Mapping When you press Start Data Collection the instrument begins plotting the points Once you are finished mapping press Stop Data Collection to finish Saving the Data Collected Once Data Collection is complete the data points can be saved as a KML file a tab delimited text file mtd and or a JPEG When it is saved as a KML file the data points can be later recalled by the instrument to be used once again and when coverage mapped with the GPS option the file can also be opened by Google Earth For viewing the data collected however it is recommended that the data be saved as a tab delimited file mtd A tab delimited file can be opened with notepad or Excel for easy viewing and report generation To begin access the Mapping Save Recal
12. ration Google Earth p Lmin e aee ae La L F Taal O ki Pris aa ea a A x ya Mione mn Eri i a zal s i ice Por Ti T Floor ES ey i EID 2 Eaa si yanat w PIi aert ela be Ei AA Figure 15 Google Earth With Google Earth you can open a saved KML file transferred from the device to you computer Simply double click the KML file and Google Earth will run and show the points in a Digital Orthophoto Quadrangle DOQ format You can click on the points to see both the colors for easy analyzing as well as the more specific values given by a tab delimited file To install Google Earth go to the web site http earth google com Download the program and then install it to your computer Additional help may be found through the Help pull down menu Conclusion Most wireless communications systems are designed to provide coverage over a predetermined area and not interfere with distant systems using the same frequencies Coverage estimation software must make assumptions about loss due to terrain buildings and other factors If the assumptions are not accurate the actual coverage of a system will differ from the design Mapping the coverage with a precision receiver provides the ultimate proof and can help separate interference issues from signal strength problems The Anritsu E Series Spectrum Master Cell Master and Site Master models are powerful battery operated instruments
13. ritsu com The ideal image size would be close to 666 pixels x 420 pixels 1 6 1 ratio The first step is to create a MAP file using Map Master Map Master has the capability to capture a map directly from the source to the program To do so press Capture Map The software program will load a 3rd party map and you can enter the address of the area you wish to map There is a zoom option as well so the map and area can be larger or smaller Once the proper specifications are made press Capture Map located at the lower right The picture is now on the Map Master screen and the latitudinal and longitudinal coordinates have been entered Then press File Save As to save as a MAP file Set the destination to the USB flash drive which can then be inserted into the instrument Create Map file using Map Master px Ra Zi Map Master s x Figure 1 Capturing the Map After pressing Capture Map Map Master will load a 3rd party map provider for easy screen capturing Map Master Select a Map file Savais a Removable Disk G My Documents File name morgan hull AnittuNebwak Sawe as type Arisu Map Hes map Figure 2 Saving the Map After pressing Capture Map on the bottom right the map and coordinates will be sent to Map Master Once done simply save it to the USB flash drive Getting Started Prior to conducting the coverage mapping survey the analyzer itself must first be configured to properly measure
14. signals over 30 dBm should be attenuated For example if the reference level setting is 20 dBm attenuation should be set to 50 dB for a mixer input of 30 dBm Detector Type a Various detection circuits can be utilized These include Peak RMS Negative and Sample The type of detection is predicated on the user s measurement needs Filtering a Filtering should be used to measure signals in the presence of interferers Filters can be added to the input of the analyzer to discriminate between wanted and unwanted signals avoiding corruption of the measurement with adjacent high level signals 5 Frequency a Select frequency to be measured To access the Coverage Mapping menu either press the main menu icon SPA Coverage Mapping or press the Shift Measure 4 key the More and then the Coverage Mapping submenu key 2 Note For some instruments this shortcut will not show up Users can add it by pressing the Shift Measure 4 key the More and then by holding the Coverage Mapping soft key for at least 3 seconds Figure 3 SPA Coverage Mapping Setting Parameters Before you begin Coverage Mapping the parameters should be adjusted appropriately In order to do so first access the coverage mapping menu Once there select Measurement Setup and then to edit the measurement settings touch the RSSI button The threshold RSSI values provide the user with easy visibility of the power level Better than Excellent Ba
15. sim Sha Tsui East Kowloon Hong Kong P R China Phone 852 2301 4980 Fax 852 2301 3545 e P R China Beijing Anritsu Company Ltd Beijing Representative Office Room 2008 Beijing Fortune Building No 5 Dong San Huan Bei Road Chao Yang District Beijing 100004 P R China Phone 86 10 6590 9230 Fax 86 10 6590 9235 e Korea Anritsu Corporation Ltd 8F Hyunjuk Bldg 832 41 Yeoksam Dong Kangnam ku Seoul 135 080 Korea Phone 82 2 553 6603 Fax 82 2 553 6604 e Australia Anritsu Pty Ltd Unit 21 270 Ferntree Gully Road Notting Hill Victoria 3168 Australia Phone 61 3 9558 81 77 Fax 61 3 9558 8255 e Taiwan Anritsu Company Inc 7F No 316 Sec 1 Neihu Rd Taipei 114 Taiwan Phone 886 2 8751 1816 Fax 886 2 8751 1817 11410 00581 Rev A Printed in United States 2010 08 Anritsu All trademarks are registered trademarks of their respective companies Data subject to change without notice For the most recent specifications visit www anritsu com aa 2010 Anritsu Company All Rights Reserved
16. the signals of interest Knowledge of various parametrics such as anticipated signal strength and variation potential presence of interfering signals and noise sources should be used in determining analyzer settings A brief summary of the main analyzer setups is shown below However the user may want to refer to the instrument user manual for more detailed guidance 1 Bandwidth Parameters a Resolution Bandwidth RBW minimum bandwidth over which one can separate two signals for viewing The RBW can be decreased for viewing closely spaced signals at the expense of acquisition time A low RBW is also advantageous in limiting noise distortion and resolution of low level signals Video Bandwidth VBW used for averaging and filtering noise This is particularly useful in discerning low level signals in the presence of noise Reference Level Pre Amplifier and Attenuator a Reference Level Input signal levels are reference to the top line of the graticule known as the reference level Depending on the amount of power anticipated in the signals to be measured the reference level should be adjusted accordingly Pre Amplifier and Attenuator In order to present the proper signal level to the analyzer detection circuits pre amplification or attenuation can be adjusted on the signal input The attenuator can be automatically adjusted as a function of the reference level In general signals below 40 dBm can use the pre amplifier while
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