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WCDMA 2100mhz signal booster gsm signal repeater

model number 9901



WCDMA 2100mhz signal booster gsm signal repeater


dual band repeater gsm parameter data :

   Model No  
Parameter data Uplink Downlink
Frequency Range        3G 1920-1980mhz 2110-2170mhz
Output Power 20±2dBm 20±2dBm
Gain 65 ±2 dB 65±2dB
Bandwidth 60M
Ripple in Band ≤5dB
Spurious Emission 9KHz~1GHz ≤ -36 dBm
1GHz~12.75GHz ≤ -30 dBm
MTBF >50000 hours
Power Supply AC:100~240V, 50/ 60Hz;DC:12V 2A
Power Consumption < 5W
Impedance 50 ohm
Mechanical Specification
RF Connector N-Female N
Dimensions (D*W*H ) 198*182*20(mm)
Net weight 1.2Kg
Installation Type Wall Installation
Environment Conditions IP40
Humidity < 90%
Operating Temperature -10°C ~ 55°C

Why we should buy mobile signal repeater/ signal booster/ 3G  amplifier :


Cell phone becomes especially helpful when people get into critical situations. In case of emergency a timely call can save somebody’s life.

Unfortunately, there are still some places where one can find themselves “out of coverage”. Usually those places are either too far from the cell phone base station or located inside underground constructions, for example:

  • Parking lots, tunnels
  • Big stores, office buildings
  • Cars, boats etc.
  • House in remote areas etc



How is  mobile phone signal repeater GSM/DCS/ 2G/3G/4G WORKING ?


  • The outside antenna catches the low signal from the mobile base station and delivers it to the cell phone

amplifier through the connection cable (coax).

  • After the signal is accepted by the phone amplifier, the device amplifies it.
  • Then this amplified signal goes through the connection cable (coax) to the inside antenna.
  • And after that, the amplified signal transmits to the cell phone.



A regular repeater 3G consists of:

12dB outdoor antenna

3dB indoor antenna

RG6-50 OHM  indoor Coaxial Cable-5m

RG6-50 OHM outdoor Coaxial Cable-10m

mounting accessories

AC power supply

user manual

Whole Package Weight 2.3KG
Whole Package Size 510x230x150mm(L x W x D)


Features of mobile phone signal amplifier


  1. High-gain linear power amplifier

B .  ALC and AGC function technology ,

  1. Ultra-low noise receive amplifier
  2. There is no interference to the base station ,right after the opening of the original system and the base station without the need to adjust parameters ,
  3. Stable and reliable electromagnetic compatibility design .
  4. The base station dose not cause an increase in background noise ,but will not lead to a decline in the  quality of the base station communications
  5. With full-duplex communication mode .
  6. dispel the heat effective reasonable ,the structure is pretty ,the volume is suitable .


Signal repeater Installation diagram (very convenient and easy to install)



How should you install repeater (very easy and simple):

Step 1: Use your mobile phone to test signal strength outside house or on roof, -70dbm is the basic requirement (full bar).


Step 2 Install outdoor antenna in that location and keep adjusting, point it to signal tower station, try to get best signal.


Step3: Run outdoor coaxial cable into building in a convenient location to connect with signal repeater.


step 4: Mount your indoor antenna with signal repeater

step5:  Power up signal repeater device to check the signal inside, moving outdoor antenna until you get satisfied signal.


Note: Connect outdoor (BTS) port with outdoor antenna, connect indoor ANT(MS) port with indoor antenna, outdoor antenna is mounted at a higher position. Both antennas should be 10 meters far away from each other at least.

Indoor and outdoor antenna must be separated by wall.


After- Sales Service


We have 12 months quality guarantee for all customers, you can return goods to us when receive defective repeater, but air freight charges should be responsible by buyer.



Signal problem & installation technique supporting

1.If still weak signal receipt after installation, please check if outdoor antenna point to signal tower correctly or elsewhere has stronger signal and confirm signal strength achieve-70DBM.


2.If still have no signal after installation, please check our device power adapter whether connected perfectly? And connectors connect well.


  1. If strength is not steady, please check if outdoor and indoor antenna is too close; please ensure outdoor antenna has distance of 10 meters at least, with a barrier and not in a same horizontal line.


  1. Packed the outdoor connector by waterproof glue, otherwise wet reduce the signal cover area.


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