The equipment works correctly when power LED indicator light P is on, any other status means power failure or
equipment failure.
The equipment works correctly when both Up-link indicator light U and down-link indicator light D are on. The up-link
incoming signal is very strong and the equipment output is large when the light U is flashing slowly. The down-link
incoming signal is very strong and the output of the equipment is large when the light D is flashing slowly.
Either indicator light U or D is off in case the up-link or down-link breaks down. The equipment experiences self-
excitation when both U and D lights are flashing quickly.
Troubleshooting
When the ALM light is flicking or on, and the booster has self-oscillation issue, it indicates the wrong installation of
indoor and outdoor antenna. In this case, please, read antenna installation instructions again and re-install the
antennas.
When the ALM light is flicking or on, and the input signal is too strong, please, change the direction or place of your
outdoor antenna.
7.4. System Test
7.4.1. Check whether the coverage is good
1. Take a test with a mobile phone or a data card (engineering mobile phone is preferred). If the signals in most areas
have not been improved, please check recommendations below again:
- Weak input signal leads to low output power. To increase input signal power level, change the direction of the
outdoor antenna or its installation position or replace it for an antenna with higher gain.
- Check whether it is necessary to use additional indoor antennas as barriers block signal penetration; also check
whether the repeater’s power is enough; please install extra indoor antennas or replace the repeater for another
model with higher power level.
2. If the signals in small parts of the area have not been improved, please check the following:
- Check whether the indoor antenna is installed correctly or not; you may try to change the antenna location to
improve coverage.
- Check if it is necessary to adjust the direction of the indoor antenna.
- Check whether it is necessary to add one or more antennas to enhance the coverage in special areas.
