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1. 

SRP9130 ALIGNMENT (LEVEL 3 SERVICE ONLY) 

This procedure is applicable to all versions of 

SRP9100 

portable transceivers. 

 
 
 
 
 
 
 
 
 
 
 
 
If the radio contains customer configuration data that must be retained, you 

must

 

first 

use the 

SRM/SRP Personality Programmer (FPP) software to read all radio configuration files and save 
them on to alternative media 

before 

commencing the alignment procedure. 

When the Alignment is completed, use the FPP software to retrieve this stored data and write it 
back to the radio. 
It is preferred that the radio remain installed in its cast and ABS case so that appropriate shielding 
and battery supply are maintained. 
Note. Final Tx power adjustments must be performed with the radio board installed in the chassis. 

 

1.1 

T

EST 

E

QUIPMENT

 

1. 

Radio transceiver test set 

CMT, 52/82 or similar. 
Note. For alternative equipment, the 
Mod Balance test requires internal DC 
coupling between the demodulated 
signal and demodulation output 
connector. 

2. 

Variable DC power supply 

6.4V to 9.6V at 2.5 amps 

3. 

Oscilloscope  

20 MHz bandwidth minimum 

4. 

SRP9100 Programming & Alignment Lead 

P/N PA-PRLD 

5. 

SRP9100 Radio Test Interface Unit OR 
See simple interface circuit in Fig 5.1 

P/N PA-RTIU 

6. 

Personal Computer  

486 DX 66 or better. 
Operating system Windows 95 or later. 
Minimum RAM - 16MB. 
5MB free hard disk space. 
Floppy drive - 1.44MB. 
Mouse and serial port required 

7. 

SRM/SRP Alignment Tool 

Computer Software file 

8. SRM/SRP 

Field 

Personality 

Programmer 

(FPP) 

Computer Software file 

9. 

SRP9100 Simulated Battery 

 

10. 

Antenna Adaptor for Portable 

PA-ACON 

 

Caution

 

Preparing the radio for alignment will erase from the radio all customer PMR and Trunking
configuration data (channel, signalling information etc).  The only data retained by the
Alignment Tool is the factory alignment data for the radio (DAC settings for Tx power,
front-end tuning etc). 

Using the Alignment Tool will allow changes to the original factory alignment and will
invalidate all warranties and guarantees unless performed by an authorised level 3 service
centre. 

Содержание SRP9100

Страница 1: ...signal and demodulation output connector 2 Variable DC power supply 6 4V to 9 6V at 2 5 amps 3 Oscilloscope 20 MHz bandwidth minimum 4 SRP9100 Programming Alignment Lead P N PA PRLD 5 SRP9100 Radio Te...

Страница 2: ...D Out 470u 25V 470u 25V 2k7 Zener 5v6 27k 1 1 2 S1 Figure 1 1 SRP9100 Radio Test Interface Unit Notes for test jig 1 The PTT switch activates transmit on the portable 2 Interface data levels are TTL w...

Страница 3: ...gure above 2 Use an adaptor P N PA ACON to provide a coaxial socket termination for the antenna 3 A battery simulator is used to supply power to the portable This is an empty battery pack with externa...

Страница 4: ...3 The Comms Setup dialogue box is displayed Select the Comms Port setting appropriate to the configuration of your PC and choose 9OK Usually COM1...

Страница 5: ...e Choose Yes if you want to proceed and go to step 3 3 The radio alignment data is read indicated by percentage bar and stored The test alignment data is downloaded into the radio Note In test alignme...

Страница 6: ...nt 1 Select the VCO DAC page 2 Select Auto Align The Synth DAC Rx slider will automatically adjust its value for each receiver alignment frequency to set the VCO loop filter value between 140 and 150...

Страница 7: ...etting Adjustment 1 Select the Mute TCXO page 2 Select PTT 3 Adjust the TCXO slider to ensure that the transmit frequency error is within 50Hz for the selected channel to be measured on the RF Test Se...

Страница 8: ...5 Set the Signal Generator to the Channel 0 carrier frequency with a 1000Hz modulation signal a deviation of 2 kHz and an RF level of 90dBm 6 Select Channel 0 7 Select Auto Align The front end will b...

Страница 9: ...elch Open slider to the right until the mute opens 9 Reduce the Signal Generator output level by approximately 2dB or by an amount equal to the desired mute hysteresis level 10 Adjust the Squelch Clos...

Страница 10: ...the specified frequency 3 Activate the Store RSSI button The receiver RSSI threshold setting is calibrated 4 Monitor the battery voltage at the simulated battery terminals with an accurate multimeter...

Страница 11: ...ct the 1W power level 8 Adjust the Tx Final Value slider for a power output of 1W 9 Repeat step 8 for the remaining 3 Channels 2 1 0 10 Select the 5W power level 11 Adjust the Tx Final Value slider fo...

Страница 12: ...t the deviation is within the range 1 25 kHz to 1 75 kHz 7 Repeat steps 2 to 7 inclusive for the remaining 3 Channels 1 2 3 8 Remove the microphone audio input signal 9 Select the Generate Square Wave...

Страница 13: ...data 1 Select Align and choose Write Alignment 2 A warning message is displayed 3 Choose Yes New alignment data is written to the radio 1 2 3 9 Customers Radio Configuration Data If the Customers Radi...

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