User's Manual

UM-0825 19
Auto-oscillation Condition
If the isolation between donor and service antennas system is lower than required, the amplified signal will
go back from service antenna to donor antenna. It will lead to self-oscillation, reducing the coverage area
and amplified signal quality.
The isolation between donor and service antennas systems must be, the nominal Signal Booster gain plus
15dB, in order to assure the properly operation of the Signal Booster.
.
Status Indicators
There is an indicator panel located at the front panel of the Signal Booster. This led panel works as a status
monitor, in order to advice different operational conditions of the Signal Booster.
There are four leds, first one the power ON indication led, labelled “PWR”.
A Second led, labelled “STS” resumes warnings regarding critical operational conditions of the Signal
Booster.
Third and fourth led resumes operational conditions for uplink “UL” and downlink “DL” chains.
Signalling will be explained in table 1.
Operative Condition
Indicator Panel
1
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