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5. Make the transmitter distortion measurement.
1. Press the PREV key to return to the ANALOG
MEAS screen.
The Hi limit annunciator should be flashing.
2. Select Distn.
Observe the value displayed next to the Distn
field. It should be less than 5%.
6. Set up the transmitter hum and noise measurement
1. Position the cursor next to the FM Deviation
field.
2. Press then release the blue SHIFT key, then
press the INCR ÷10 key.
3. Press the knob to set a 0 dB reference.
The new value displayed should be close to 0 dB.
The FM Deviation field is displayed whenever the AF Anl In field is set to FM Demod.
Transmitter Audio Distortion and Hum and Noise (requires audio connections)
Chapter 4, Mobile Station Analog Tests
85
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