User's Manual

13
antenna and donor antenna point opposite direction).
 Reduce the booster’s downlink gain by the control button. Keep the uplink
attenuation value and downlink attenuation value same then restart the
booster.
More about "ISO" indication
ISO status indicates if the booster has enough isolation between outdoor and
indoor antennas in order to avoid loop back or so-called self-oscillation. This is
an intelligent system that works automatically to ensure the booster has no
interference to either call/data services, or mobile networks. "ISO" flashes in
LCD display when ISO function works; the flashing status shows ISO is working,
and the self-oscillation has been eliminated.
LED
Status
Meaning
Solve methods
ISO
status
Remain still
No loop back or
no self-oscillation
NO action is needed
Flashing but actual gain
is not more than 30dB less
than rated gain
Slight loop back
or self-oscillation
NO action is needed
Flashing but actual gain
is more than 30dB less
than rated gain
Deep loop back
or self-oscillation
Working properly, but deep loop,
below actions are recommended:
 Adjust the antennas’ directions or
locations to enlarge the distance.
 Add the vertical or horizontal
distance between outdoor and
indoor antennas.
 Use the barrier like walls to
increase the isolation.
 Reduce the booster’s gain by
external attenuator or replace
with lower gain antenna if the
above methods don’t work.
More about "AGC" indication: Flashing ALC indicates if the booster has a
strong receiving power
LED
Status
Meaning
Solve methods
ALC
status
Remain still
Output power is
not weak or just
suitable
Check coverage, leave it if it is good;
take below actions to increase signal if
coverage is not good.
1. Adjust the antenna direction or
location to get stronger receiving
signal
2. Replace current antenna with higher