HiBoost F20-5S Panduan Pengguna - Halaman 14

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Check whether it is necessary to add more indoor antennas since barriers



block the signal penetration.

2. The rated output power is not reached.

1) Please adjust the outdoor antenna to get a stronger receiving signal in

order to get higher output power (not necessarily to reach rated value as long

as the coverage is enough)

2) please observe the LCD display, if the reading gain is less than rated value

and "ISO" is flashing, it means the gain is reduced by ISO function for not

having enough isolation.

Measures: One of below actions are recommended to eliminate ISO

problems and increase the gain

Adjust the antenna's directions or locations, or enlarge the distance between



them.

Enlarge the vertical or horizontal distance between donor antenna and server



antenna.

Use the barrier, such as walls, to increase the isolation.



Change server antenna(server antenna can be changed to other antenna



type which has better directional antenna pattern, also you can let server

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.