060 USER`S MANUAL
Contents
1. 14 Command Mr n HR 14 Ment IONS e RRIDSRRERIRNRRI 14 o 2 FOUG 6 xis 20 7 goto 8 S DRUER 9 FOUG A 11 A o e A A 12 User s Manual REV 010 GPS SOURCE INC COMPANY PROPRIETARY DECLARATIONS The GPSRKXLV product is intended for use as a GPS GNSS L Band frequency repeater or re radiator Use of this device is governed buy NTIA rules in Procedures and Principles for the Assignment and Coordination of Frequencies Improper use shall be considered unwarranted and could result in violation of applicable federal rules and regulations Changes or modifications to the equipment not expressly approved by GPS Source Inc could void the user s authority to operate the equipment This device is intended to connect directly to an outdoor receiving antenna system GPS Source strongly recommends the inclusion of a coaxial surge protection in the event of lightening strikes to the outdoor antenna To provide protection to devices and personnel GPS Source recommends the use of devices such as the Co Pro Surge Coax Protector Contact t2. Flr 11 L2 e f 7 R m3 aS T DM x gt N 3 Figure 2 TITLE User s Manual REV 010 GPS SOURCE INC COMPANY PROPRIETARY GPS Repeater GPSRKXLV Figure 3 TITLE User s Manual REV 010 GPS SOURCE INC COMPANY PROPRIETARY GPS GPS Repeater GPSRKXLV e 20 8ed c o 9 NI B ma 49018 o af PR E CUA PAR wu CURE 9008 NO ooassea 64 North Mission Dive Pueblo West CO 8100 ra i ROHS Y 9 561 9520 www apssource com 3 ET O Eu ar d S d er Figure 4 ERP Level Adjust This device s output is intended to be connected to a repeat or re radiating antenna Without the ERP level adjust enabled the ERP level numbers in the display only reflect the power at the output connector and do not take the retransmit antenna gain or loss into account ERP level adjust lets the user add the antenna gain or loss into the power control calculation so the numbers reflect the total system ERP level not just the power at the output connector of the device Most antennas have some positive gain but could just as easily be negative imagine a repeat antenna with positive gain connected to a long cable with enough loss to give a negative gain overall also many passive antennas have little or no gain by design There are two steps to using this function First the user is required to set the amount of gain positive or negative by naviga
3. A O 5 Antenna RY Line DU Volta ce m M 5 Antenna Current Fault Detection Ant Fault Detect Optional ecce eee eee eee eene 5 Oscillation Detection OSC Detect Optional ccce eee eee eee eee eee eese eese esses esses s etae en oe 6 ERP Levec Adjust e 8 cni c 9 IJ D F die3fOFE 2 0225222 002222620212028242121490212827 8912326919120282 91022009021922020 091 0 00 16 0208 01030200 0050208020 020892060200 28 9 IE SEU cae cuss sas ceases tenets M 10 E PEE NG e 10 Menu SY SUG A E arre kid E AREE vv P dd Re E Eo ESL EVO E pvussE EU CYvA ME pR es E EP va V e TEppE E EPIS DRY AE DS 10 Serial Port Control CO OM m m M M 10 1 114 Ur E TE E EN A N A E A E T AA A E AA 10 AAA nn o 60 0191050 0031 60542 00608 10 Sienal Ievelregin Fremen cia 12 Lowsienal ys NO TUI m 13 lali SI OMAN M H 13 Fixed Output Mode AMA O OE 13 OO CV INO T s 13 Terminal TNO c
4. the direct path Operation In normal operation the GPSRKXLV is controlled via the front panel using buttons There are three buttons UP DOWN and ENTER TITLE User s Manual REV 010 GPS SOURCE INC COMPANY PROPRIETARY Alternatively the unit may also be controlled via a RS232 port using a terminal emulator in terminal mode or in command mode programmatically When you are controlling the GPSRKXLV via the serial port the Bluetooth option is a very good idea as most installations are further away Terminal mode One can connect to the device using a standard terminal device or a more likely scenario a computer utilizing some terminal emulation software such as Hyperterm Terra Term Kermit etc The unit can be operated with the down arrow keys and the enter keys on the computer keyboard in exactly the same manor as if one were pressing the buttons on the front panel of the device by navigating the menus and using the up down arrow keys and enter key or equivalent esc sequences The device will echo the text to the serial port and in most case it will be the same as the front panel LCD or it will be more verbose Note the letter D amp d will also function as the down arrow key and the letter U amp u will function as the up arrow key Command Mode In command mode the unit can be controlled or operated by sending specific commands as opposed to navigating menus via key strokes there is nothing stopping a user from se
5. 0 to 13 seconds the unit will retry to see if the current fault condition has been removed by clearing the error message and momentarily reconnecting power to the input port If a high or low threshold current level is no longer exceeded then the device will once again operate normally The exact trigger level s can be set via the serial port GPSRKXLV Serial Interface Reference TITLE User s Manual REV 010 GPS SOURCE INC COMPANY PROPRIETARY If you do not have the serial port option the factory defaults are low current threshold level is less than 15ma and the high threshold level is greater than150ma Oscillation Detection OSC Detect Optional The GPSRKXLV is capable of detecting high levels of RF energy which is indicative of feed back from the output of the device to the input If the OSC detect circuitry threshold is exceeded the unit will remove power from the antenna or input and it will display an error message OSCF on the display LCD display and send an error message via serial port Unlike the antenna current fault the unit will not retry and requires a key press or equivalent character from the serial port to clear the error and to retry The exact trigger level s can be set via the serial port GPSRKXLV Serial Interface Reference GPS GPS Repeater GPSRKXLV e 250 SS d NN I Ot ILE esi T e ae E v Los e N ng 19018 o 90 yao g e LNO o OQ sseg RS 232 O Ant Mon O ERP Control e
6. GPS SOURCE INC COMPANY PROPRIETARY 060 USER S MANUAL PRODUCT RELEASED REVISED BY APPROVED BY PAGE 1 of 14 GPS GNSS Signal Philip Coiner Philip Coiner Repeater Re radiator REVISION HISTORY DESCRIPTION 001A 01 13 09 INITIAL PRODUCTION RELEASE 003 10 3008 UPDATE 006 2 508 UPDATE 008 1 12 09 UPDATE 009 3 3 09 UPDATE 010 21May09 UPDATE ADDED SURGE SUPRESSOR INFO PO O E A POCO O E O E O O O a E O O O O a xUaalgM 2 m PO E O gg PO O A O O O DN PO O A PO O A O E O NN PO E A DEM 23 NN O O O The drawing and specification herein are property of GPS Source and shall not be reproduced or used in whole or in part as the basis of manufacture or sale of items without written permission TITLE User s Manual GPS GNSS Signal Repeater Re radiator REV 060 FAV AAB AAX BBZ 010 GPS SOURCE INC COMPANY PROPRIETARY GPSRKXLV USER MANUAL GPS GNSS Signal Repeater Re radiator o ie A deu E do EEE cpm n di Me Be TEE a co mae o a a 7 j S GPS Repeater GPSRKXLV d PS 70 DM C E ri EF i v gt 3 ES 8 no O e d E o z zo i uz zi o A o o 8 o x al oO 2 Fir 11 12 e RS 232 O Ant Mon O ERP Control e O Figure 1 TITLE User s Manual REV 010 GPS SOURCE INC COMPANY PROPRIETARY DOSTON T 5 A 5 A o I UL 5
7. e antenna power on and off Note This does not affect the out port so this will not turn off power to the devices powered by the output port TITLE User s Manual REV 010 GPS SOURCE INC COMPANY PROPRIETARY Antenna VDC Displays the voltage that is available to power the output ports Note this only displays the voltage available to the ports If an input port is DCB blocked then this does not mean there is voltage present on the port If the port is enabled to pass DC PDC this then is the voltage on the port s Canyon Mode Turns Canyon Mode on or off A percent sign in the first line of the main menu denotes Canyon mode TITLE User s Manual REV 010 GPS SOURCE INC COMPANY PROPRIETARY 6 f GP S GPS Repeater GPSRKXLV i TITLE User s Manual REV 010
8. enu each press of the up or down button navigates the menu system The menu system is flat i e it is a loop of items that can be selected for modification or selected to display the current values or settings Once an item is selected the up and down keys can be used to change the displayed values of the particular item After approximately 10 seconds with no user input button presses from the user or characters on the serial port the menu returns to the main screen which displays the current selected ERP level Main Screen The main screen is shown in Figure 1 The title which reads ERP Level is on the first or top line On the right hand side of the title is a number 3 in the picture which shows the mode of the GPS receiver Mode 1 denotes the GPS receiver is not yet tracking satellites Mode 2 denotes the receiver is tracking satellites but only has sufficient satellites for a 2D fix Mode 3 denotes the GPS receiver has enough satellites to compute a 3D fix and represents the highest level of accuracy Because the power output of the device is based on what the GPS receiver is reporting the accuracy is better when the receiver has a 3D fix The first number of the second line shows the desired ERP transmitted power level selected by the user and is always a whole number The second number is the actual ERP transmitted power level and is always a decimal number Serial Port Control Optional The GPSRKXLV can be controlled via a RS232 port For d
9. etailed information regarding the serial port protocol and command interface refer to the GPSRKXLV Serial Interface Reference which may be downloaded from the GPS Source website www gpssource com Setup Installation Roof Antenna Placement Mounting The roof antenna should be located where the antenna has a clear view of the sky The metal antenna mounting bracket antenna mast and any metal tower components should be all be grounded to earth with the shortest path possible and with at least a 6 gauge 4mm 2 copper wire or larger Local regulations for earthing grounding may be different in different countries and regions please consult with local regulations before installing Surge Suppressor Lighting surge protection is required The GPSRKVXLV is not designed to operate without a proper surge suppressor installed Without a proper surge protector the GPSRK could sustain damage from lighting More importantly when the surge protector is properly installed see figure 5 it will route keep the energy from lighting strikes outside the building preventing a possible electrocution hazard You can order a surge TITLE User s Manual REV 010 GPS SOURCE INC COMPANY PROPRIETARY suppressor from GPS Source http www gpssource com or from other manufacturers See the recommended requirements below ourge Suppressor Properly Located This will route any energy from a lighting strike to ground before it enters the building Path of L
10. he GPS Source sales department for additional information Operation Rules Per NTIA rules GPS Repeaters are to be operated by International Customers customers outside the U S agencies of the US Federal Government parties operating under the direction of the US Federal Government or parties granted an STA or Experimental License under part 5 of the FCC rules or parties that will be operating GPS Repeaters in a shielded room For further information regarding NTIA requirements in applications involving re radiated signal see Section 8 3 28 of the NTIA manual found here http www ntia doc gov osmhome redbook redbook html CE Marking The GPSRKXLV has been tested and verified to comply with applicable EU directives TITLE User s Manual REV 010 GPS SOURCE INC COMPANY PROPRIETARY GPSRKXLV USER MANUAL Description The GPSRKXLV is a RF L band repeater re radiator it transmits either L1 1575 42MHz only or L1 amp L2 1227 60MHz frequencies L5 and other GNSS signals are possible but the internal filtering does not currently support these signals it requires an input signal from a GPS GNSS source i e GPS receive antenna or GPS signal generator It has one input RF port and one output RF port Using front panel buttons or an RS232 serial port the ERP output power can be adjusted in 1dB steps over the 86dBm to 65dBm operating range of the device The device measures the signal strength at the output and automatical
11. ighting Roof Surge Ant Supressor s pr eM 6 Gauge Copper Wire to Earth Figure 6 TITLE User s Manual REV 010 GPS SOURCE INC COMPANY PROPRIETARY Surge Suppressor Improperly Located This will route energy from a lighting strike into your building Path of Lighting Roof Antenna _ NN Do 6 Gauge Copper Surge Wire to Earth Supressor Figure 7 Recommended Surge Suppressor Technical Specifications Multi strike capable Current 4Adc Insertion Loss s 0 1dB Freq Range 800 2500MHz Operating Voltage 15 Volts Polarity Protected Side Connector N Female 50Q RF Power 2 25 Watts Surge Side Connector N Female 500 Throughput Energy lt 500yJ for 3kA 8 20us Waveform Turn On Voltage 16 5 Volts Unit Impedance 500 Voltage Standing Wave Ratio 1 1 1 Weatherized Bellcore TA NWT 000487 Procedure 4 11 Wind Driven 120 mph Rain Intrusion UL Approved and Listed UL497B Signal level requirement TITLE User s Manual REV 010 GPS SOURCE INC COMPANY PROPRIETARY The GPSRKXLV device needs to have the proper level of input signal in order to transmit over its range i e 86dBm to 65dBm The GPSRKXLV is designed to smooth out fluctuations of GPS signal levels by attenuating strong signals and increasing weak signals to provide a constant signal level at the output The level need not be exact but the closer the signal is to
12. ly controls the output level based on the measured GPS signal level This assures the transmitted signal level is within the NTIA authorized range for GPS repeaters Features The GPSRKXLV contains various features standard and optional Optional features require the addition of optional circuitry and may not be installed or applicable to your device Adjustable Output Power The GPSRKXLV comes standard with adjustable output RF power from 86dBm to 65dBm RF Filtering RF filtering is standard to prevent transmission of any out of band i e unwanted signals There are two RF filtering options L1 L2 filtering Optional With L1 L2 filtering the maximum gain provided will be in the frequency bands of L1 1575 42 MHz and L2 1227 60 MHz L1 filtering Optional With L1 filtering the maximum gain provided will only be in the band only i e 1575 42 MHz Note see data sheet for filter response s Antenna RF Line DC voltage As a standard feature the GPSRKXLV is capable of providing a switched DC voltage out each RF port to power other devices in the RF signal chain The unit can be externally powered by 110VAC 220VAC 240VAC or from a DC source minimum 8VDC Antenna Current Fault Detection Ant Fault Detect Optional If the antenna current exceeds either a high or low threshold value then the device will remove power from the antenna or input port and it will display an error message on the display and via serial port After approximately 1
13. nding individual key strokes i e characters programmatically and navigating through the menus to control the device it is not necessary or recommended A command set is provided to execute functions directly so the unit can be controlled by a machine or computer as in an automatic test setup See the GPSRKXLV Serial Interface Reference for a complete list of commands Menu Options Brightness Sets the level of brightness of the LCD back light Instructions press middle down button press Enter Adjust brightness using up down buttons TITLE GPS User s Manual REV 010 GPS SOURCE INC COMPANY PROPRIETARY ERP Adjustment Sets the ERP Level of the amplifier nn Instru ctions GPS Repeater GPSRKXLV Fe E R 7 press up or down button until ERP Level e wes appears on screen n o inm press Enter Adjust ERP level up or down using up down buttons Contrast Sets the contrast of the LCD display Instructions press middle down or up button until contrast is displayed on screen press Enter Adjust contrast using up down buttons Help The Help menu displays the serial number of the device the version of the firmware and the URL of GPS Source for service and support Instructions press middle down button until Help appears on screen press Enter View information specific to product by using up down arrows Antenna Power On Off The Antenna operation turns th
14. rate at one default level The default level can be changed by the user if the device has a serial port using the FOL command see GPSRK A11XLV G Serial Interface Reference If there is no serial port the default level set at the factory cannot be changed factory default is 80dBm The desired output level adjust menu still works as will the STL command but as soon as the user selects enter or in the case of STL the command completes the desired output level will return to the default level Placement Issues When choosing a mounting location for a GPSRKXLV there are a few things to keep in mind Do not place the device near a window or skylight where the signal from the transmit antenna can leak back to the roof antenna Note the transmit antenna has a back lobe so just facing the transmit antenna in the opposite direction is not good enough The roof and transmit antenna need to be isolated to prevent feedback and runaway oscillation It is not a good idea to place the device where it is aimed out a door or window as it is possible to interfere with nearby users The GPS signal is reflected by metal surfaces as are all radio waves So take care to minimize the reflecting surfaces near the intended receiver when possible and do not use any more power than necessary With GPS signals less signal power is more Reflected signal power causes multipath or degradation of the GPS signal so use only enough power to over come the free space loss in
15. significantly lower in power than the unmasked satellites Including masked satellites may cause the average signal power computation to vary If in canyon mode the device will report on the serial port as part of the power level i e main menu report There will also be a percent sign in the third character of the first line LCD display to denote if the device is in canyon mode LED Indicator Figure 5 The LED is on the side of the device as shown above shown RED Red indicates that the power to the antenna is off Green indicates that the antenna power is on Whilst green the flash rate indicates the mode of the GPS receiver A one half hertz rate indicates the GPS receiver is in mode one or searching for satellites When flashing at a one hertz rate the GPS receiver is in mode two or 2D mode When solid green the GPS receiver is in mode three or 3D mode TITLE User s Manual REV 010 GPS SOURCE INC COMPANY PROPRIETARY LCD display As a standard feature the GPSRKXLV is equipped with a LCD display to provide feedback to the user LCD Backlight The LCD display is equipped with an LCD back light The back light is not available with the non powered option which removes the AC power supply from the product Menu System The LCD of the device has two lines of sixteen characters The first line or top line always contains the title of menu item selected so that you know where you are at in the menu tree From the top level of the m
16. the center of the dynamic range the more likely it will operate at maximum and minimum transmit power points The input signal level range of the GPSRKXLV is greater than 100dBm and less than 72dBm If the input signal level to the GPSRKXLV is too high it will not be able to attenuate sufficiently or if it is too weak it will not be able to amplify it enough to reach the desired level See FAQ on GPS Source s web site www gpssource com for calculation signal and system noise levels in a GPS network Low signal vs no signal If the signal is too weak to generate the desired output the GPSRKXLV will display a LOWSIG message on the LCD display and the serial port A low signal means the internal GPS receiver is still tracking satellites so the device has some GPS signal reception but the level is too weak for the GPSRKXLV to provide the desired power level out If the GPSRKXLV displays very low actual power level numbers i e below 137dBm then this means there is no GPS signal making it to the internal GPS receiver as the built in receiver cannot acquire signals below the 137dBm level so this is a no signal condition High signal If the signal is too strong to produce desired output the GPSRKXLV will display a HIGHSIG message on the LCD display and the serial port This means the power level is so strong that the device cannot attenuate it down to the desired level Fixed Output Mode If configured for fixed output mode the GPSRKXLV will only ope
17. ting to the ERP level Adjust menu see Figure 2 Use the up and down arrow keys to enter a value in the range of 3 to 3 dB see Figure 3 Then navigate to the ERP level adjust ON OFF menu see Figure 4 and turn the option on or off When ERP level adjust is enabled an asterisk will appear after the transmitted power number in the display Remember that one has the option of setting the ERP level TITLE User s Manual REV 010 GPS SOURCE INC COMPANY PROPRIETARY adjust to zero which will put an asterisk next to the transmitted power number in the display but will have no effect on the ERP power output of the device Canyon Mode In normal operation canyon mode is off When the receiver is initializing i e it is in mode 1 or acquisition mode it uses the single strongest satellite signal to set the output signal level Whilst in mode 2 often the receiver will skip directly to mode 3 if enough satellites are available it uses an average of the three strongest satellite signals In mode 3 it uses an average of the 4 strongest satellite signals Note All measurements whether from a single satellite or three strongest or four strongest satellites are averaged three times before they are used to adjust the output power level In canyon mode the device uses the single strongest satellite signal as in mode 1 during all modes to set the output signal level because when in a canyon or an area with a restricted view of the sky the masked satellites may be
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