Speech jammer best setting - High Gain mini GSM / 3G Mobile Signal Booster / Amplifier TE-903GB

High Gain mini GSM / 3G Mobile Signal Booster / Amplifier TE-903GB
High Gain mini GSM / 3G Mobile Signal Booster / Amplifier TE-903GB

High Gain  GSM / 3G dual band  Repeater / Booster / Amplifier With wide coverage​

1. Provide quick coverage solution for small signal weak & block zones.
2. Compact size, low consumption, easy installation, great cover.
3. Cover about 500~1000 sq.m without block or obstruct.
4. High linear design, low interference to BTS.
5. Manual gain control function.









Frequency range

Uplink     890-915MHz/ 1920-198MHz

Downlink  935-960MHz / 2110-2170MHz




GSM Gp≥55;

3G Gp≥50;

GSM Gp≥65;

3G  Gp≥55;

GSM Gp≥45;

3G  Gp≥50;


GSM  Gp≥60; 

3G Gp≥55;

GSM  Gp≥70; 

3G  Gp≥60;

GSM Gp≥40; 

3G Gp≥50;

Gain adjustable


Output power




Pass band ripple


I/O impedance

50Ω/N Connector

I/O return loss


Noise figure


Intermodulation attenuation









Power supply

AC110~240V±10%   45~55Hz


To the GB6993-86 standard


To the ETS300 694-4 standard


a) Power supply LED denote

 b) Export power LED denote

RF Connector





< 2Kg

Competitive Advantage:
1. High system gains
2. Full duplex and double-end design, external power supply, and convenient installation
3. ALC technology with auto-steady function adopted.
4. Provide power indication and uplink and downlink indications.
5. With the amplified linear power, the intermodulation and spuriousness are suppressed effectively.
6. The electromagnetic compatibility conforms to ETS300 609-4 standards.
7. The electromagnetic compatibility conforms to ETS300 609-4 standards.
Our mobile signal booster(mini repeater) is specially designed for the blind zones of offices, family rooms, factories, bars, supermarkets, underground parking garage,etc, where the signal is very poor, or in spite of full mobile signals on the mobile phone, there is a break in voice leading to call clarity problem. Simply place the mobile phone booster in such places, you'll be astonished with the huge gain in both the incoming reception and outgoing transmission levels as the mobile signal booster goes to work!



speech jammer best setting

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