Sailor RE2100 Technical Manual page 47

3 SERVICE
AM ATTACK AND DECAY
A = 1.0V/div.
B = 5.0V/div.
3.5.2.6 PERFORMANCE CHECK OF RECEIVER SQUELCH
1. Connect a signal generator to the aerial socket through a 50 ohm dummy load.
2. Choose the receiver frequency f
V according to table in point 8.
G
3. Make sure that the AGC and SQUELCH are active and adjust the AF volumen until a tone is heard
in the loudspeaker.
4. Disconnect the signal generator from the aerial socket on the RE2100. You will now hear the
receiver noise from the loudspeaker.
5. Control that the AF output is muted after about 10 secs.
6. Connect the signal generator to the aerial socket again.
7. Control that the squelch opens instantly and that you now hear a 1 kHz tone from the loudspeaker.
8. Control that the squelch closes after about 10 secs.
9.
3.5.2.7 PERFORMANCE CHECK OF RECEIVER EXTERNAL CONNECTIONS
1. If no testbox for RE2100 is available, the connections can be found and checked in the 25 pin
connector and the 9 pin connector at the back of the RE2100.
2. Press the front panel key <2182> fixed.
3. Control that the light emitting diodes names distress and +18 handset at the testbox are alight.
50 msecs/div.
, signal generator frequency f
RX
, and the generator output level
G
PAGE 3-17
RE2100