Sailor RE2100, Technical Manual

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3 SERVICE RE2100
The RE2100 is automatically set by the service programmes.
AGC Step Responses.
3.6.1.6 CHECK OF DETECTOR
In this section the audio frequency output level and distortion from the detector are controlled.
The output level from the detector is determined by the input level to the detector and by the detector itself.
The input level to the detector is given by the base-to-emitter voltage of transistor Q14-1 divided by the
voltage gain of the AGC amplifier, which is built-up around transistor Q16-1.
1. Connect the generator to the aerial socket at the front end unit (module 2).
2. Connect the voltmeter and a distortion meter to detector output at U06, pin 6.
3. Turn the RE2100 on, and turn the RF gain control fully clockwise.
4. Choose generator frequency f
G
, generator output level V
G
, and receiver frequency f
RX
according to
point 6.
5. Measure the AF output level and distortion at detector output and control the result by comparing
it to the values given in point 6.
6.
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