Simoco SRP9100 Alignment Procedure Download Page 10

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1.2.3.5 RSSI

1. Select

the

RSSI Cal

page.

Set the Signal Generator for a RF output level of –90dBm and 2kHz deviation at 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.
5.

Adjust the power supply so that the voltage reads exactly 7.2V ±5mV.

6. Click the

Battery

button to store the calibration.

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...