HiBoost F20G-5S-LCD Podręcznik użytkownika - Strona 12

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When the LCD is in the alarm display mode, press the "SET" key and the LCD screen

will display the alarm indication showing the affected band. Pressing the "INC+" (or

" DEC-") key and the LCD will switch to help tips. If none of keys are depressed within

30 seconds, the display will return to the fixed display mode.

If none of the control keys are depressed within 5 minutes, the LCD screen will turn

off. Pressing any key will return the display to the fixed mode.

4.5 Manual Gain Control (MGC)

Since the booster has a very good self-adaptive smart automatic level control (ALC)

and isolation gain processing (ISO) , most of the time manual adjustments are not

required to achieve good coverage. However, in some cases where the ALC or ISO is

working at a very high rate to adjust the gain and the Alarm or ISO LED is flashing

more than once a second a manual adjustment might be desired.

When the LCD is in the fixed display mode, press the "SET" key for more than 3

seconds. It will go into the "Gain Setting Mode" and make one of the gain values start

to blink.

 Press "SET" key shortly, and the LCD will switch to the next gain value and it

will start to blink. (uplink or downlink gain for a different band).

 Press "INC+" key once shortly and the gain will increase by 1dB, Press

"DEC-"once shortly and the gain value will be reduced by 1dB.

 Press the "SET" key for 3 seconds, and the LCD will return to the fixed

display mode.

Note: When adjusting the gain manually, please ensure that the uplink gain

is equal to or not 5 dB less than the downlink gain setting. This avoids

interference with the local cell site tower network.

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