3g 4g GSM DCS WCDMA Cellphone Signal Booster 23dBm Mobile Signal Repeater

Cellphone signal booster 3g 4g GSM DCS WCDMA 23dBm Mobile Signal Repeater

I don’t know if you have ever encountered the following situation. Sometimes the phone can’t get out in the elevator and there is no signal. After going to the parking lot to make a call, the phone signal is weak, the call is intermittent, and the phone has no signal when passing through the tunnel when riding the train. There is no signal in the mountainous countryside. Traveling in the forest and grassland, the mobile phone has no signal, which seriously affects the quality of instant messaging. How to solve these problems? Install a mobile phone signal amplifier to instantly increase the signal strength of the mobile phone, improve the quality of calls and network, and solve the problem of weak mobile phone signal.

The LCD Repeaters have many intelligent functions: such as antenna isolation detection, Input & Output signal strength indication, system indication, manual gain control and smart mode. See the detailed introduction listed below:

The Display will auto off if don't touch it in one minute.

1. “GREETWIN”is Company LOGO.

2. Power: Power supply with indicator.

3. Smart: Smart function with indicator. AUTO Mode now.

4. M : “AUTO” switch to “MANU”.

5. Sel: Select the working systems ,

long press the button for 2s , will enter into 900M. then setting the gain.

then set the gain 65dB, long press the button for 2s again. 65dB was confirmed.

6. 900MHz: Show the current working system. Press “Sel” to change to the different system for operation.

7. AUTO/MANU: Automatic Mode or Manual gain Mode.

8. AGC: Automatic gain control with indicator.

9. ISO: Isolation inspection with indicator.

10. 63dB/68dB: Real-time gain show in the LCD display.

11. 0dBm/0dBm: Real-time outpower show in the LCD display.

12. UL is Uplink, DL is downlink. “+” is increasing the gain, “-” is decreasing the gain.