Next Generation
Signal Enhancement
Annexure 2
Trouble shooting procedure HB-20
Conditions
Possible Reasons & Solutions
A. Initially all the
LED’s will blink two
times
1 Check the power cord and the AC power socket
2 Please note that the AC main power has to be
within the range 100~240VAC
3 Verify the D.C Adapter output voltage is 9V.
B. Signals are not
amplified after
completing the
installation
2. Check all the connectors of the booster system for
proper connections. The “BTS” connector has to
be connected to donor antenna, and the “MS”
connector has to be connected to server antenna.
3. The poor isolation between donor and server
antenna will cause system oscillation and it may
damage the amplifier of the booster
. It is to note
that the booster gain should be at least 10 db
lower than the antenna isolation.
C. The system
performed well in
the beginning but
after few days the
performance has
degraded.
1. The received signal level from the base station
might have degraded due to environmental
changes such as new building construction and so
on. If so, please follow the suggestions below:
a. Try to re-align the donor antenna towards
the base station
b. Adjust the gain attenuation of the Up or
Down link direction
c. Relocate the donor antenna to solve the
problem
2.
RF Cable problem:
Check the RF cable for
physical damage by rats etc. Also check for sharp
bands or RF cable pressed. Under these
File
Doc. No.
Date
Version
Page
HB-20
5700 9004 050
Mar,06
2.0
18