- LCD control screen
- Control controllers
- Gain Control Controls
- Adapter input
- Outdoor antenna input
- Indoor antenna input
- SET (feature connector)
LCD 1 / LCD / LCD3 : Show the operating frequency on display
After the GSM signal booster is turned on, LCD 1 on LCD 3 always lit and visible.
LCD 2 Show the working frequency. In the right table you can see the corresponding networks which are supported by the signal booster.
LCD 4: “ISO” Isolation Alarm Indication
When the signal amplifier does not have enough *insulation between the indoor and outdoor antennas, the “ISO” flash in the display. If this problem is solved, “ISO” are no longer visible.
*Insulation can also be understood to mean the distance or space between the 2 antenna's
LCD 5: “Alc” Too strong reception indication
When the signal amplifier receives TOO strong signal from the outdoor antenna. Is the signal drowned out and starts “Alc” to blink. When the signal is no longer too strong, switch “Alc” off on the display.
- Move the position of the outdoor antenna until the Alc alarm is no longer visible
- You can do nothing! In that case, the signal amplifier was adjusting its signal itself. But if the interference continues and the signal shows more than 30dB, adjust the antenna anyway.
Mobile Phone method:
You can use the phone to test the signal strength by the window or on top of the building. The number of bars on the network indicator will approximate the strength of the received signal..
Normally the roof of the building is the best place to receive the strongest signal. As shown on the graph on the right, you need to test the signal on the points from A to E, choose a place with the best signal strength for Outdoor Antenna Installation. It is recommended to use a mobile app that can display the signal level, as this is more accurate than the bars on your display.
LCD 6: There is no signal amplification.
LCD 7: Gain or power indication.
The displayed value shows real-time the power it sends out, when the signal has an output power lower than 10dBm, LCD 6 and LCD7 “—” to give.(three dashes)
If the LCD screen on “OFF” and the signal amplifier is turned off, the LCD screen will flash.
If the LCD screen on “ON” state and the signal amplifier is turned off, LCD6 and LCD7 will display “OFF” in the place of the frequency band.
Control buttons description.
To start, press the once “LCD KEY” When the Display is in circular mode, the display will 30 seconds de (gain) display gain and outgoing gain (output power values).
Press the “LCD KEY” short press to take the display out of circular modes and press it again to go to the next status screen.
(If you are not in 30 second of “LCD KEY” pressed it will return to circular mode.)
If you 5 minutes, the Display will go to “OFF” go mode press any key to turn it back on.
You can always use the “LCD KEY” button so that the Display remains in outgoing signal strength mode and in the case of a dual band amplifier you can select the “LCD KEY” press again to switch to the outgoing signal strength of the other frequency.
Manually setting signal strength
(Manual Gain Control (MGC)
Because the signal booster is digital and uses intelligence software (AGC – Automatic signal attenuation) manual setting of the attenuation is in principle not necessary.
Except in those cases when you still see the ISO and ALC flashing on the display, or in exceptional cases that the interference is too high that you have to adjust it manually.
- 0-270 turning degrees means 0-31dB
- Turn clockwise to attenuate the signal
- Turn counterclockwise to amplify the signal.
If you want to adjust the attenuation or amplification of the signal again. keep in mind that the “Uplink Gain” equal or 5dB less than the “Downlink Gain” to avoid interference with the mobile network.
Try to get signal from cell towers that are not so busy druk, You can estimate this by the population density in the area where a transmission tower has been placed by the telecom provider.
It is also recommended to avoid placing a cell tower near a supermarket, mall, stadium and any other public place choose. It will be easier to achieve successful phone connections and higher data rate services if you follow this tip.