AGC alarm displays in
LCD panel. Inside the
coverage, received
signal power is
fluctuating, and Ec/No
is deteriorated. In this
condition, successful
call cannot be
achieved.
This condition occurred when
self-oscillation occurs on the site.
When isolation of the site cannot meet
the formula: Isolation > booster gain
+15dB, self-osciallation will occur.
Increase the separate distance
between donor and service antenna to
increase the isolation. And then adjust
the booster
’s gain to the safe value.
Please refer to
Booster Configuration
part to see how to set booster
’s gain
properly.
5.3 Booster Replacement
If the booster needs to be replaced, the following procedure is recommended:
Switch off the power supply
Disconnect the power cable
Disconnect the RF feeder cables
Disconnect the grounding cable of booster
Loosen the screws at the bracket of booster
Lift the booster off from the bracket
If the booster is not replaced immediately with another unit, make sure to
weather protect the open-ended cables