Simoco SRP9100 Alignment Procedure Download Page 2 | Manualshive

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Simoco SRP9100 Alignment Procedure Download Page 2

3.5mm

2.5mm

DB9F
to PC

3

330R 1%

2

5

2k7

1%

27k

1%

PTT

1uF Bipolar

TX AF

In

RX AF

Out

P1761

680R

16R

RxD In

TXD 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 with RS232 polarity, although should work with most personal

computers.

3. 16R resistor simulates speaker load.

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Summary of Contents for SRP9100

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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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