Manual Do Utilizadoríndice analíticoSECTION 1 INTRODUCTION AND OPERATION151.1 SCOPE OF MANUAL151.2 REPEATER DESCRIPTION151.3 REPEATER IDENTIFICATION15Figure 1-1 REPEATER IDENTIFICATION151.4 MODEL NUMBER BREAKDOWN15Figure 1-2 PART NUMBER BREAKDOWN151.5 ACCESSORIES15Table 1-1 REPEATER ACCESSORIES161.6 PRODUCT WARRANTY161.7 FACTORY CUSTOMER SERVICE161.8 FACTORY RETURNS161.9 REPLACEMENT PARTS171.10 SOFTWARE UPDATES/REVISIONS171.11 REPEATER OPERATION171.11.1 MAIN PROCESSOR CARD (MPC)17Figure 1-3 REPEATER CARDS18Table 1-2 ACTIVE REPEATER ALARMS191.11.2 MAIN AUDIO CARD (MAC)201.11.3 INTERFACE ALARM CARD (IAC)201.11.4 POWER SUPPLY211.12 REPEATER INFORMATION211.12.1 INTRODUCTION211.12.2 HOME REPEATERS211.12.3 INTER-REPEATER DATA COMMUNICATION211.12.4 MOBILE TRANSCEIVERS211.13 REPEATER DATA BUS SIGNALING211.13.1 GENERAL211.13.2 MOBILE DATA MESSAGE ORDER221.13.3 ID VALIDATOR OPERATION22SECTION 2 INSTALLATION252.1 INTRODUCTION252.1.1 SITE PREPARATION AND ANTENNA INSTALLATION252.2 ENVIRONMENT252.3 VENTILATION251. The Repeaters should be mounted with a minimum of 6 inches clearance between the front or back...252. Cabinet enclosures must provide air vents for adequate air circulation.253. Temperature and humidity must be considered when several Repeaters are installed at a site. Th...252.4 AC POWER262.5 BATTERY BACKUP26Figure 2-1 BATTERY BACKUP CONNECTOR26Figure 2-2 TEMPERATURE SENSOR CABLE262.6 800W POWER SUPPLY26Figure 2-3 POWER CABLE CONNECTOR AND SCHEMATIC27Table 2-1 OUTPUT VOLTAGES27Table 2-2 OVER VOLTAGE272.6.1 AC INPUT REQUIREMENTS272.7 GROUNDING282.7.1 PROTECTION GUIDELINES291. Ensure that ground connections make good metal- to-metal contact (grounding rod, grounding tra...292. With surge protectors, ensure that ground wires go directly to ground, and not through other e...293. Run the ground wire for RF coax protectors directly to ground.294. With coax protectors, ensure maximum instantaneous voltage does not exceed the rated voltage.295. Do not run ground wires parallel to any other wiring (e.g. a ground wire parallel to a telepho...296. Double check all equipment for good ground and that all connections are clean and secure.292.8 UNPACKING AND INSPECTION29Figure 2-4 RACK MOUNTED REPEATERS29Figure 2-5 5-CHANNEL COMBINING SYSTEM302.9 REPEATER DATA BUS INSTALLATION302.9.1 MPC DATA BUS SWITCH SETTINGS302.9.2 MPC DATA BUS JUMPER SETTINGS30Figure 2-6 RJ-11 TO BNC MPC JUMPERS31Figure 2-7 RJ-11 TO RJ-11 MPC JUMPERS312.10 CONNECTING RECEIVE AND TRANSMIT ANTENNAS31Figure 2-8 ANTENNA CONNECTIONS31Figure 2-9 RJ-11 TO BNC ADAPTER MODULE31Figure 2-10 SINGLE REPEATER INSTALLATION32Figure 2-11 TWO REPEATER INSTALLATION32Figure 2-12 THREE OR MORE REPEATERS INSTALLATION33Figure 2-13 MIXED VIKING VX AND CR1100 REPEATER INSTALLATION34SECTION 3 SOFTWARE353.1 INTRODUCTION353.1.1 HOW TO USE THIS MANUAL353.1.2 GETTING STARTED353.1.3 COMPUTER DESCRIPTION351. One 3.5" high density disk drive.352. 640K of memory353. MS-DOS version 2.0 or higher354. One serial port355. Monochrome or color monitor and video card353.1.4 EEPROM DATA STORAGE353.1.5 COMMAND LINE OPTIONS361. When running the compiled (.EXE) version, type / c2 on the command line after the program name...362. Select COM port from Utilities heading.363.1.6 COLOR OR MONOCHROME OPERATION363.2 REPEATER PROGRAM SOFTWARE363.2.1 INSTALLING THE SOFTWARE363.2.2 MINIMUM FREE MEMORY REQUIRED373.3 REPEATER PROGRAMMER373.3.1 PROGRAM FILES373.4 ALIGNMENT SOFTWARE37Figure 3-1 REPEATER TEST MENU373.5 HELP F138Figure 3-2 PROGRAMMING FLOWCHART38SECTION 4 PULL DOWN MENUS394.1 MENU DISPLAYS394.2 FILE MENU39Figure 4-1 FILE MENU39Figure 4-2 LOAD FILE394.2.1 LOAD394.2.2 SAVE394.2.3 SAVE AS39Figure 4-3 SAVE FILE394.2.4 NEW404.2.5 PRINT REPEATER CONFIGURATION404.2.6 DOS SHELL404.2.7 QUIT (ALT X)40Figure 4-4 EDIT PROGRAMMING FLOWCHART404.3 EDIT41Figure 4-5 EDIT MENU414.3.1 SETUP PARAMETERS414.3.2 SELECT REPEATER42Figure 4-6 REPEATER LIST424.3.3 ALARM CONFIGURATION42Figure 4-7 ALARM CONFIGURATION42Figure 4-8 INPUT ALARMS42Figure 4-9 OUTPUT ALARMS43Figure 4-10 ALARM CROSS REFERENCE434.3.4 REPEATER TYPE43Figure 4-11 REPEATER TYPE434.3.5 DELETE REPEATER43Figure 4-12 DELETE REPEATER434.3.6 TELEPHONE PARAMETERS444.4 TRANSFER44Figure 4-13 TRANSFER MENU444.4.1 WRITE SETUP PARAMETERS44Figure 4-14 WRITE SETUP PARAMETERS44Figure 4-15 PROGRAM WRITE SETUP444.4.2 READ SETUP PARAMETERS44Figure 4-16 READ SETUP PARAMETERS44Figure 4-17 READING SETUP44Figure 4-18 HARDWARE PROGRAMMING FLOWCHART444.5 HARDWARE45Figure 4-19 HARDWARE MENU454.5.1 HSDB MONITOR45Figure 4-20 HSDB MONITOR454.5.2 RECEIVE/TRANSMIT DATA45Figure 4-21 MOBILE TRAFFIC MONITOR454.5.3 RF DATA45Figure 4-22 RF LINE MONITOR464.5.4 REVISION/VERSION464.5.5 MODE SELECT46Figure 4-23 REVISION/VERSION46Figure 4-24 REVISION/VERSION46Figure 4-25 TEST PROGRAMMING FLOWCHART474.6 TEST47Figure 4-26 TEST MENU474.6.1 POWER AMPLIFIER474.6.2 RECEIVER474.6.3 EXCITER474.6.4 FULL REPEATER484.7 UTILITIES48Figure 4-27 UTILITIES MENU484.7.1 COM PORT48Figure 4-28 COM PORT SELECTION48Figure 4-29 LAPTOP INTERCONNECT CABLE484.7.2 DISPLAY MODE48Figure 4-30 COLOR MODE SELECTION484.7.3 USER LEVEL48SECTION 5 REPEATER PROGRAMMING495.1 CREATING A NEW FILE495.1.1 SELECT REPEATER TO EDIT491. Highlight EDIT, press Enter.492. Highlight SELECT REPEATER, press Enter.493. Default is the only repeater in this list, press Enter.494. Highlight EDIT, press Enter.495. Highlight SETUP PARAMETERS, press Enter.496. The Setup Parameters screen appears (see Figure 5- 1). Fill in the parameters for this repeate...497. Select parameters, press F2 to accept.498. Highlight EDIT, press Enter.499. Highlight ALARM CONFIGURATION and press Enter, if alarms are to be configured.4910. Program the Alarms to be configured (see Section 4.3.3), press F2 to accept.4911. Highlight FILES, press Enter.4912. Highlight SAVE, press Enter.4913. Type in a valid DOS filename. For this example site1.dat is used.4914. The file consists of default and repeater one under the filename of site1.dat.495.2 ADDING A REPEATER TO A FILE491. Highlight EDIT, press Enter.492. Highlight SELECT REPEATER, press Enter.493. The repeater list shown for this file includes default and repeater one. These contain the sam...494. Highlight DEFAULT, press Enter.495. Highlight EDIT, press Enter.496. Highlight SETUP PARAMETERS, press Enter.497. Change the Repeater number and other parameters as required for this repeater, press F2.498. Highlight EDIT, press Enter.499. Highlight ALARM CONFIGURATION and press Enter, if alarms are to be configured.4910. Program the Alarms to be configured (see Section 4.3.3), press F2 to accept.4911. Highlight FILES, press Enter.4912. Highlight SAVE, press Enter.4913. Repeater 2 is added to the Repeater List in file site1.dat.49Table 5-1 REPEATER SETUP PARAMETERS50Figure 5-1 SETUP PARAMETERS50SECTION 6 CIRCUIT DESCRIPTION516.1 RECEIVER516.1.1 INTRODUCTION516.1.2 REGULATED VOLTAGE SUPPLIES516.1.3 HELICAL FILTERS, RF AMPLIFIER516.1.4 12.5 kHz IF51Figure 6-1 12.5 kHz IF RECEIVER BLOCK DIAGRAM52Figure 6-2 U201/U203 BLOCK DIAGRAM52Figure 6-3 25 kHz IF RECEIVER BLOCK DIAGRAM536.1.5 25 kHz IF536.1.6 VCO546.1.7 ACTIVE FILTER54Figure 6-4 SYNTHESIZER BLOCK DIAGRAM556.1.8 BUFFER556.1.9 SYNTHESIZER556.1.10 BUFFER AMPLIFIER576.1.11 LOCK DETECT576.1.12 CHARGE PUMP, LOOP FILTER576.1.13 VOLTAGE MULTIPLIER576.1.14 BUFFER AMPLIFIER576.1.15 FIRST AND SECOND INJECTION AMPLIFIERS586.2 EXCITER586.2.1 VCO (A007)586.2.2 VCO BUFFER586.2.3 VCO/TCXO FREQUENCY MODULATION58Figure 6-5 EXCITER BLOCK DIAGRAM596.2.4 SYNTHESIZER596.2.5 BUFFER AMPLIFIER606.2.6 BUFFER AMPLIFIER606.2.7 LOCK DETECT606.2.8 CHARGE PUMP, LOOP FILTER616.2.9 BUFFER AMPLIFIER616.2.10 RF AMPLIFIERS616.3 110W POWER AMPLIFIER616.3.1 AMPLIFIER/PREDRIVER616.3.2 DRIVER61Figure 6-6 110W POWER AMPLIFIER BLOCK DIAGRAM626.3.3 FINAL AMPLIFIERS626.3.4 POWER DETECTORS626.3.5 THERMAL SENSOR626.3.6 FORWARD/REVERSE POWER DETECT, CIRCULATOR, LOW-PASS FILTER626.4 RF INTERFACE BOARD636.4.1 POWER CONNECTOR636.4.2 SIGNAL CONNECTOR (J101)636.4.3 FAN CONNECTOR (J104)656.4.4 POWER AMPLIFIER CONNECTIONS656.4.5 EXCITER CONNECTOR (J102)666.4.6 RECEIVER CONNECTOR (J103)67Figure 6-7 RF INTERFACE BOARD BLOCK DIAGRAM696.5 800W POWER SUPPLY706.5.1 FILTER BOARD706.5.2 POWER FACTOR CORRECTION706.5.3 MAIN PULSE WIDTH MODULATOR70Figure 6-8 BLOCK DIAGRAM716.5.4 SYNCHRONIZING CIRCUITS726.5.5 FAN AND THERMAL SHUTDOWN726.5.6 +15V CONVERTER736.5.7 +5V CONVERTER736.5.8 -5V CONVERTER736.5.9 POWER SUPPLY REPAIR AND ALIGNMENT731. The +26.5V supply can be adjusted with R174 when any of the following components are replaced:...742. The +15V supply can be adjusted with R216 when any of the following components are replaced: R...743. The +5.2V supply can be adjusted with R254 when any of the following components are replaced: ...746.6 BATTERY BACK-UP MODULE746.6.1 OPERATION746.6.2 CHARGER74Figure 6-9 NO LOAD CHARGE VOLTAGE vs. TEMPERATURE756.6.3 REVERSE BATTERY PROTECTION756.6.4 ENGAGING THE RELAY756.6.5 OVER/UNDERVOLTAGE SHUTDOWN756.6.6 BBM FAN CONTROL766.7 CARD RACK76Figure 6-10 BACKPLANE CONNECTORS766.8 CARD RACK776.9 EXTERNAL CONNECTOR BOARD77Figure 6-11 EXTERNAL CONNECTOR BOARD77Figure 6-12 U27 BLOCK DIAGRAM786.10 MAIN PROCESSOR CARD786.10.1 INTRODUCTION786.10.2 MAIN CONTROLLER MICROPROCESSOR796.10.3 HIGH SPEED DATA BUS MICROPROCESSOR (U13)796.10.4 CHIP SELECT DECODERS (U15/U4)806.10.5 P1 SIGNAL CONNECTOR806.10.6 J1 COMPUTER CONNECTOR816.10.7 J2 MEMORY SELECT816.10.8 J3 BAUD RATE816.10.9 S2/S3 HSDB SETTINGS816.10.10 J4 EPROM MEMORY LOADING816.10.11 J5 HSDB SPEED816.10.12 J6 WATCHDOG816.11 MAIN AUDIO CARD826.11.1 INTRODUCTION826.11.2 AUDIO/DATA MICROPROCESSOR826.11.3 RECEIVE AUDIO826.11.4 RECEIVE SQUELCH CIRCUITRY836.11.5 RECEIVE DATA CIRCUITRY836.11.6 RECEIVE AUDIO PROCESSING836.11.7 VOTER AUDIO846.11.8 COMPANDOR OPTION846.11.9 TRANSMIT AUDIO846.11.10 TRANSMIT AUDIO PROCESSING846.11.11 TRANSMIT DATA AND CWID PROCESSING856.11.12 P101 SIGNALING CONNECTOR856.11.13 P100 EXTERNAL OUTPUTS866.11.14 J100 A D LEVEL TEST POINT876.11.15 J101 SPEAKER/MICROPHONE876.11.16 J102 LOCAL MICROPHONE876.11.17 J103 GROUND876.11.18 J104 EXTERNAL SPEAKER876.11.19 J105 WATCH DOG876.11.20 J106 TX DATA PATH876.11.21 A301 COMPANDOR CONNECTIONS876.12 INTERFACE ALARM CARD886.12.1 RELAY OUTPUTS886.12.2 ISOLATED INPUTS88Figure 6-13 4 I/O J1 ALARM OUTPUTS88Figure 6-14 4 I/O J2 ALARM OUTPUTS88Figure 6-15 S500-S503896.12.3 ALARM INDICATORS896.12.4 ALARM FUNCTIONS89Figure 6-16 ALARM EXAMPLE896.12.5 P500 SIGNALING CONNECTOR906.12.6 P501 EXTERNAL OUTPUTS916.12.7 J500 A D LEVEL TEST POINT936.12.8 J501 GROUND936.12.9 J502 +15V936.12.10 POWER SWITCH936.12.11 J505 SQUELCH ENABLE OUTPUT93Figure 6-17 MAIN PROCESSOR CARD BLOCK DIAGRAM95Figure 6-18 MAIN AUDIO CARD LOGIC BLOCK DIAGRAM96Figure 6-19 MAIN AUDIO CARD AUDIO BLOCK DIAGRAM97Figure 6-20 INTERFACE ALARM CARD BLOCK DIAGRAM98SECTION 7 ALIGNMENT AND TEST PROCEDURES997.1 RECEIVER ALIGNMENT997.1.1 PRETEST997.1.2 VOLTAGE MEASUREMENTS997.1.3 PROGRAM TUNE-UP CHANNEL991. Using the PC and software, program the Synthesizer for the Receive frequency.992. Tune the VCO capacitor L102 for +7V DC ±0.05V at TP401. Increase the receive frequency by 1 MH...993. Alternately tune CV151 and CV152 in 1/2-turn to 1-turn increments until a voltage is measured ...994. Retune CV151/CV152 for a peak at TP401.991. Program the Synthesizer for the Highest receive frequency (i.e. 150 or 178 MHz).992. Set the control line voltage for 15V at TP401. Check 2 MHz below the programmed frequency (i.e...991. Program the Synthesizer for the Lowest receive frequency (i.e. 132 or 150 MHz).992. Set the control line voltage for 2V at TP401. Check 2 MHz above the programmed frequency (i.e....99Figure 7-1 RECEIVER ALIGNMENT POINTS1007.1.4 RECEIVER FREQUENCY ADJUST1001. Place a pick-up loop (sniffer) or RF probe connected to a frequency counter near TP102.1002. Set Y401 (TCXO) for the Injection Frequency ±50 Hz (Inj Freq = chnl freq + 52.95 MHz).1007.1.5 VCO TEST1001. The software programs the synthesizer for 1 MHz above the receive channel.1002. The voltage on TP401 should be < 10V.1003. Record the voltage on TP401 __________.1004. The software programs the synthesizer for 1 MHz below the receive channel.1005. The voltage on TP401 should be > 4V.1006. Record the voltage on TP401 __________.1007. If the voltages recorded in Steps 3 and 6 are not within ±0.2V, tune L102 as required to balan...1008. The software programs the synthesizer for the receive frequency.1007.1.6 FRONT END ADJUSTMENTS1001. Set the signal generator to the receive frequency at a level sufficient to produce an output v...1002. Tune CV101, CV102, CV103, CV104, CV105, and CV106, then repeat, for a peak voltage at TP201. D...1001. Set the generator to an RF level sufficient to produce 2V DC at TP201.1002. Remove any modulation from the signal generator.1003. Increase the signal generator RF frequency 2.5 kHz.1014. Adjust CV211 for peak DC voltage at TP201.1015. Adjust CV212 for peak DC voltage at TP201.1016. Reset the signal generator to the tune-up frequency.1017. Set the signal generator to 100 mV into the receiver with a 1 kHz tone at ±1.5 kHz deviation. ...1018. Tune Z215 for 2V ±0.05V at U203, pin 9.1019. Tune RV215 for 387 mV RMS, ±5 mV RMS, at TP202.10110. Adjust RV212 for 2V ±0.05V at TP202.10111. Connect a distortion analyzer to TP202.10112. Tune L211, L213, L214 and L216 for minimum distortion <5%, (typically <3%).10113. Repeat Step 12 then Steps 8, 9 and 10.1011. Set the generator to an RF level sufficient to produce 2V DC at TP201.1012. Remove any modulation from the signal generator.1013. Increase the signal generator RF frequency 5 kHz.1014. Adjust CV201 for peak DC voltage at TP201.1015. Adjust CV202 for peak DC voltage at TP201.1016. Reset the signal generator to the tune-up frequency.1017. Set the generator to 100 mV into the receiver with a 1 kHz tone at ±3 kHz deviation. (1000 mV ...1018. Tune Z205 for 2V ±0.05V at U201, pin 9.1019. Tune RV203 for 387 mV RMS, ±5 mV RMS, at TP202.10110. Adjust RV202 for 2V ±0.05V at TP202.10111. Connect a distortion analyzer to TP202.10112. Tune L201, L203, L204 and L206 for minimum distortion <5%, (typically <3%).10113. Repeat Step 12 then Steps 8, 9 and 10.1017.1.7 AUDIO DISTORTION1011. Plug a 16 ohm load at J101 or J104 on the TPI (Third Party Interface Card).1012. Connect a distortion analyzer to the 16 ohm load.1013. Measure the distortion of the receive audio at J101 or J104 on the TPI with the local volume c...1014. The reading shall be less than 3%. (Typically less than 1%.)1015. Measure receive sensitivity at J101 or J104 on the TPI.1016. The reading should be less than 0.35 mV. (Typically 0.25 mV.)1017. The software programs the synthesizer for 1 MHz above the Receive frequency.1018. Receive sensitivity should be less than 0.35 mV. (Typically less than 0.30 mV.)1019. The software programs the synthesizer for 1 MHz below the Receive frequency.10110. Receive sensitivity should be less than 0.35 mV. (Typically less than 0.30 mV.)10111. Adjust the signal generator level to produce 15 dB SINAD.10112. Adjust RV201 for 0.5V ±0.02V at TP201.1017.2 EXCITER ALIGNMENT1027.2.1 PRETEST1021. Set TCXO modulation adjust RV101 fully counterclockwise.1022. Connect the power meter to J402.1027.2.2 VOLTAGE MEASUREMENTS102Figure 7-2 EXCITER ALIGNMENT POINTS1027.2.3 PROGRAM TUNE-UP CHANNEL1021. Using the PC and software, program the Synthesizer for the Transmit frequency.1022. Press the space bar to key the Exciter.1023. Tune the VCO inductor L102 for +4.5V DC ±0.05V at TP1 (U403, pin 6). Increase the transmit fre...1024. Measure the Power Output of the Exciter at J402. Reading should be > +18 dBm.1035. Press the space bar to unkey the Exciter.1031. Program the Synthesizer for the Highest transmit frequency (i.e. 150 or 178 MHz).1032. Press the space bar to key the Exciter.1033. Set the control line voltage for 7.5V at TP1. Check 6 MHz below the programmed frequency (i.e....1034. Press the space bar to unkey the Exciter.1031. Program the Synthesizer for the Lowest transmit frequency (i.e. 132 or 150 MHz).1032. Set the control line voltage for 2V at TP1. Check 6 MHz above the programmed frequency (i.e. 1...1037.2.4 VCO TEST1031. The software programs the synthesizer for 3 MHz above the Tune-Up frequency.1032. Press the space bar to key the Exciter.1033. The voltage on U403, pin 6 should be < 7V. Power output should be > +18 dBm.1034. Press the space bar to unkey the Exciter.1035. The software programs the synthesizer for 3 MHz below the Tune-Up frequency.1036. Press the space bar to key the Exciter.1037. The voltage on TP1 (U403, pin 6) should be > 2.5V. Power output should be > +18 dBm.1038. Press the space bar to unkey the Exciter.1039. The software programs the synthesizer for the Transmit Channel.1037.2.5 TCXO FREQUENCY ADJUST1031. Connect a 10 dB pad and frequency counter to J402.1032. Press the space bar to key the Exciter.1033. Tune TCXO Y401 for the Transmit Channel Frequency, ± 50 Hz.1034. Press the space bar to unkey the Exciter.1037.2.6 TRANSMIT MODULATION ADJUST1031. Connect a 10 dB pad and modulation analyzer to J402.1032. Press the "FM" and "3 kHz LPF" switches of the modulation analyzer.1033. Inject a 1 kHz sine wave at 400 mV RMS into J2, pin 5 on the back of the Station. NOTE: This t...1034. Adjust U207 with "Up/Dn" and "PgUp/PgDn" keys for 707 mV RMS on P100, pin 29. This waveform sh...1035. Press the space bar to key the Exciter.1036. Set RV401 for ±3 kHz deviation for 25 kHz channels ( ±1.5 kHz deviation for 12.5 kHz channels).1037. Press the space bar to unkey the Exciter.1038. Adjust R237 for a 2V P-P square wave on P100, pin 29 of the TPI. NOTE: This test changes the T...1039. Press the space bar to key the Exciter.10410. Set RV101 for "best" square wave as observed on the modulation analyzer output to the oscillo...10411. Press the space bar to unkey the Exciter.10412. Repeat Steps 1-7. Very little adjustment of RV401 should be needed.1047.3 110W POWER AMPLIFIER ALIGNMENT1047.3.1 INTRODUCTION1047.3.2 DRIVER TUNING AND LIMIT ADJUSTMENTS1041. Connect an antenna or dummy load to the RF port (50 ohm impedance).1042. Connect the: Power supply ground lead to P105 +15V DC lead to P103 +26.5V DC lead to P101 36-p...1043. Set the signal generator to +19 dBm ±0.1 dB. Connect the signal generator to A9.1044. Press the space bar to key the PA.1045. Monitor the voltage on R45 on the RFIB and set R76 for 1.3V DC (see Figure 7-4).1047.3.3 POWER AMPLIFIER TUNING1041. Set RV501 on the PA fully counterclockwise. Set RV502 on the PA fully clockwise, see Figure 7-3.1042. Set Forward Power Adjust RV601 and Reflected Power Adjust RV602 on the power detector board fu...1043. Monitor the voltage on R45 on the RFIB and set R76 for 1.3V DC (see Figure 7-4). This sets the...1044. Set each of the quiescent currents for Q502 and Q503 for 10 mA (DC) each.1045. Program the power output for the correct frequency range as follows: 132-150 MHz 110W 150-178 ...1046. Press the space bar to key the PA. Output power will be approximetly 80W.1047. Monitor the output power and tune C601 and C602 for maximum output power (see Figure 7-3).1048. Set Forward Power Adjust RV601 for rated power (110W or 100W).1049. Press the space bar to unkey the PA.10410. Disconnect the antenna or dummy load from the RF port.10411. Press the space bar to key the PA. NOTE: This will not harm the PA.10412. Adjust Reverse Power Calibration Pot RV602 for equal voltages on W121 and W126 on the RFIB or...10413. Press the space bar to unkey the PA.104Figure 7-3 110W POWER AMPLIFIER ALIGNMENT POINTS105Figure 7-4 RF INTERFACE BOARD ALIGNMENT POINTS105Figure 7-5 POWER EXTENDER CABLES105Figure 7-6 RECEIVER TEST SETUP106Figure 7-7 EXCITER TEST SETUP107Figure 7-8 110W POWER AMPLIFIER TEST SETUP1087.4 FULL REPEATER ALIGNMENT1097.4.1 PERFORMANCE TEST PROGRAM1091. Select the TEST - FULL REPEATER - ALL TEST and press Enter.1097.4.2 REPEATER SETUP1097.4.3 TRANSMITTER TEST/ADJUSTMENTS1091. Press the space bar to key the repeater.1092. The IAC Transmit LED should turn on to indicate the repeater is transmitting (see Figure 7-14).1093. Press the space bar to unkey the repeater.1094. Press the space bar to key the repeater.1095. Check the frequency of the transmitted signal. The frequency should be ±50 Hz of the channel f...1096. Adjust the frequency with Y401 (TCXO) on the Exciter (see Section 7.2.5).1097. Press the space bar to unkey the repeater.1091. Press the space bar to key the repeater.1092. Check the transmit output power. The power can be adjusted from the computer using the cursor ...1093. Press the space bar to unkey the repeater.1097.4.4 RECEIVER TESTS/ADJUSTMENT1091. Check the receiver injection frequency by using a "sniffer" pickup loop, or RF probe connected...1092. Adjust Y401 (TCXO) on the Receiver to within ±50 Hz of the channel frequency + 52.95 MHz.1091. Adjust the RF generator for 100 mV into the Receiver with a modulation tone of 1 kHz at ±3 kHz...1102. On the MAC, insert test cables into J100/J103 and connect to an AC voltmeter.1103. Adjust R237 for 0 dBm (775 mV RMS).1104. On the MAC, connect a 16 ohm load and distortion analyzer to J101 or J104.1105. Adjust R236 for 2.8V RMS and measure the distortion. Distortion should be < 3%.1101. Adjust the RF generator for 100 mV into the Receiver with a modulation tone of 1 kHz at ±3 kHz...1102. On the MAC, connect a 16 ohm load and distortion analyzer to J101 or J104.1103. Adjust R236 for 2.8V RMS.1104. Remove modulation from the RF generator. The measured level must be £ -50 dB.1101. Adjust the RF generator for 100 mV into the receiver with a 1 kHz tone at ±3 kHz deviation 25 ...1102. On the MAC, connect a 16 ohm load and distortion analyzer to J101 or J104.1103. Adjust R236 for 2.8V RMS.1104. Re-adjust RF level for 12 dB SINAD. 12 dB SINAD reading should be £ 0.35 mV.1101. Adjust the RF generator for 100 mV into the receiver with a 1 kHz tone at ±3 kHz, 25 kHz chann...1102. On the MAC, connect a 16 ohm load and distortion analyzer to J101 or J104.1103. Adjust R236 for 2.8V RMS.1104. Set the RF generator output for 5 dB SINAD.1105. On the MAC, adjust R234 so the Receiver just squelches.1106. Increase the RF generator output until the Receiver unsquelches. Reading should be £ 10 dB SINAD.1101. Adjust the RF generator for 100 mV into the receiver with a 100 Hz tone at ±1 kHz, 25 kHz chan...1102. On the MAC, insert test cables into J100/J103 and connect to an AC voltmeter.1103. Adjust R235 to achieve 340 mV RMS.1101. Adjust the RF generator for 100 mV into the receiver with a 1 kHz tone at ±3 kHz deviation, 25...1102. On the MAC, plug a Speaker/Microphone into J101/J102.1103. Adjust R236 until the 1 kHz tone is heard.1101. Adjust the RF generator for 100 mV into the receiver with a 1 kHz tone at ±3 kHz deviation, 25...1102. On the MAC, connect a 16 ohm load and distortion analyzer to J101 or J104.1103. Adjust R236 for 2.8V RMS.1114. Re-adjust the RF generator output for 12 dB SINAD.1115. Press the space bar to key the transmitter.1116. SINAD should not degrade more than 1 dB or to no less than 11 dB SINAD.1117. Press the space bar to unkey the transmitter.1117.4.5 TRANSMIT AUDIO/DATA LEVEL ADJUSTMENTS1111. On the MAC, apply a 1 kHz tone at -3 dBm (578 mV RMS) to P100, pin 32.1112. Insert test cables into J100/J103 and connect to an AC voltmeter.1113. Press the space bar to key the transmitter.1114. Adjust R305 for 0 dBm (775 mV RMS).1115. Press the space bar to unkey the transmitter.1116. On the MAC, apply a 1 kHz tone at +7 dBm (1.73V RMS) to P100, pin 32. (Set modulation analyzer...1117. Press the space bar to key the transmitter.1118. Adjust U149 with the PgUp/PgDn and CurUp/ CurDn keys to set the maximum allowed deviation at ±...1119. Press the space bar to unkey the transmitter.11110. Remove the signal from P100, pin 32.1111. Adjust the RF generator for 100 mV into the receiver with a 1 kHz tone at ±1.5 kHz deviation, ...1112. Press the space bar to key the transmitter.1113. On the MAC, adjust R237 to achieve ±1.5 kHz (±100 Hz) transmit deviation, 25 kHz channels, (±8...1114. Press the space bar to unkey the transmitter.1115. Connect an AC voltmeter to J103 and P100, pin 31 (RX_VOICE).1116. Adjust R238 for -3 dBm (548 mV RMS).1117. Remove the RF generator from the Receiver.1111. Remove VNC cards if present. Set modulation analyzer LPF to 3 kHz. Press the space bar to key ...1122. Adjust U151 with the PgUp/PgDn and CurUp/Cur/ Dn keys to achieve ±1 kHz (±100 Hz) transmit dev...1123. Press the space bar to unkey the transmitter.1121. On the MAC, apply a 1 kHz tone at +7 dBm (1.73V RMS) to P100, pin 32. Set modulation analyzer ...1122. Press the space bar to key the transmitter.1123. Measured deviation should be ±4.5 kHz (±200 Hz), 25 kHz channels (±2.4 kHz (±100 Hz) 12.5 kHz ...1124. Press the space bar to unkey the transmitter. Disconnect all cables.1121. Set modulation analyzer LPF switch to 3 kHz. Press the space bar to key the transmitter.1122. Deviation should be 1.5 kHz to 2.5 kHz, 25 kHz channels, (±0.750 kHz to 1.75 kHz, 12.5 kHz cha...1123. Press the space bar to unkey the transmitter.1121. On the MAC, plug a Speaker/Microphone into J101/J102. Set modulation analyzer LPF switch to 3 ...1122. Press the space bar to key the transmitter.1123. Press the microphone PTT and say "four" loudly into the microphone.1124. Deviation should measure ±3 to ±3.5 kHz, 25 kHz channels, (±0.75 kHz to 1.6 kHz, 12.5 kHz chan...1125. Release the microphone PTT.1126. Press the space bar to unkey the transmitter.1121. On the modulation analyzer press: 300 Hz HPF 3000 Hz LPF FM Pre-Display 750 mS Avg RMS Cal .44...1122. Press the space bar to key the transmitter and measure the Hum and Noise Ratio. The reading sh...1123. Press the space bar to unkey the transmitter.1121. On the modulation analyzer press: FM 50 Hz 15 kHz1122. On the MAC, apply -11.7 dBm at 1 kHz to P100, pin 32.1123. Press the space bar to key the transmitter.1124. Adjust audio level to produce ±1 kHz deviation (25 kHz) or ±0.5 kHz (12.5 kHz deviation).1125. On the modulation analyzer select: 300 Hz 3 kHz 750 ms de-emphasis1136. Distortion is < 2%.1131. Adjust the RF generator for 100 mV into the receiver with a 1 kHz tone at ±1.5 kHz deviation (...1132. Press the space bar to key the transmitter.1133. Adjust R305 for ±1.5 kHz ±100 Hz deviation (25 kHz channels) or 800 Hz (12.5 kHz channels) out...1134. Press the space bar to unkey the transmitter.1137.4.6 VOTER AUDIO LEVEL ADJUSTMENT1131. Inject a 1 kHz tone at -12 dBm (194 mV RMS) into J2, pin 17. This tone represents ±1.5 kHz dev...1132. On the MAC, adjust R233 to obtain a level of -6 dBm (387 mV RMS) at J100/J103.1137.4.7 AUDIO/DATA LEVEL ADJUSTMENTS1131. On the MAC, set S100 and S101, all Sections OFF.1132. Adjust the RF generator for 100 mV modulated with a 1 kHz tone at ±1.5 kHz deviation.1133. Connect a balanced AC voltmeter with a 600 ohm input impedance between balanced lines RXA+ and...1134. On the MAC, adjust R239 for the type of line used. Leased Line/Direct Connect (default) -12 dB...1131. On the MAC, set S100 and S101, all Sections OFF (see Figure 7-9).113Figure 7-9 S100 SETTING1132. Inject a 1 kHz tone from a balanced 600 ohm source, at the level determined by the type of lin...1133. On the MAC, adjust R243 to obtain -6 dBm (387 mV RMS) measured at J100/J103.1137.4.8 REPEATER OPERATION1141. On the MPC, switch settings for RS-485 operation are shown in Figure 7-10.114Figure 7-10 NEW HSDB SWITCH SETTINGS1142. Verify that the repeater is programmed for "Stand Alone" mode in Setup Parameters-F4 (see Sect...1143. The repeater is now in Normal Operation mode. Verify by the MPC front panel indicators that no...1141. Program an LTR portable or mobile for the following parameters. Home Repeater - Same as repeat...1142. The repeater is now in Normal Operation mode.1143. Key the radio several times on the programmed System/Group. Access should occur every time. (P...1141. The repeater is now in Normal Operation mode.1142. Verify by the MPC front panel indicators that no alarms have occurred (see Table 1-2).114Figure 7-11 J2 TERMINAL BLOCK114Figure 7-12 MAC ALIGNMENT POINTS115Figure 7-13 MAIN PROCESSOR CARD ALIGNMENT POINTS116Figure 7-14 INTERFACE ALARM CARD ALIGNMENT POINTS117SECTION 8 SERVICING1198.1 INTRODUCTION1198.1.1 PERIODIC CHECKS1198.1.2 SURFACE-MOUNTED COMPONENTS1198.1.3 SCHEMATIC DIAGRAMS AND COMPONENT LAYOUTS1198.1.4 REPLACEMENT PARTS LIST1198.1.5 TCXO MODULES NOT SERVICEABLE1198.2 SYNTHESIZER SERVICING1198.2.1 INTRODUCTION1198.2.2 TCXO MODULE1208.2.3 VOLTAGE CONTROLLED OSCILLATOR (VCO)120Figure 8-1 LOCK DETECT WAVEFORM1201. The frequency of the modulus control signal on TEST 1, pin 9 should be equal to the N counter ...1202. The duty cycle of the modulus control signal determines the divide number of the prescaler. Th...120Figure 8-2 MODULUS CONTROL WAVEFORM1208.2.4 INTERNAL PRESCALER1208.2.5 CALCULATING "N " AND "A " COUNTER DIVIDE NUMBERS1218.3 RECEIVER SERVICING1218.4 TRANSMITTER SERVICING1218.5 POWER SUPPLY SERVICING121Figure 8-3 POWER SUPPLY REAR VIEW122Figure 8-4 POWER SUPPLY FRONT VIEW1228.5.1 VOLTAGE CHECKS1238.6 CHIP COMPONENT IDENTIFICATION1238.6.1 CERAMIC CHIP CAPACITORS (510-36xx- xxx)1238.6.2 TANTALUM CHIP CAPACITORS (510-26xx-xxx)1238.6.3 CHIP INDUCTORS (542-9000-xxx)1238.6.4 CHIP RESISTORS123Figure 8-5 3-DIGIT RESISTOR124Table 8-1 CERAMIC CHIP CAP IDENTIFICATION124Table 8-2 CHIP INDUCTOR IDENTIFICATION1258.6.5 CHIP TRANSISTORS AND DIODES1258.7 GRAFOIL REPLACEMENT PROCEDURE125SECTION 9 PARTS LIST127Tamanho: 9 MBPáginas: 198Language: EnglishAbrir o manual