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20dBm Digital Band Selective Cell Phone Signal Booster

20dBm Digital Band Selective Cell Phone Signal Booster

* 99% pass customs clearance,Amplitec have many certificates,such as CE,RoHS,FCC,etc...

* 100% solve mobile cell phone weak signal problem.

* Sub-band frequency and bandwidth can be set by local monitoring panel, which is easier and more convenient

* Digital filter technology makes out-of-band rejection more effective

* OLED screen can clearly display working frequency, gain, output power and easily check    working status of the device

* Manual gain control function, to attenuate gain with 1dB step among range of  31dB

* ALC, with wide range of 31dB, auto limit the output power to ensure stable performance.

* Device auto detect isolation after start-up, to avoid self-oscillation.

* Can be controlled and monitored, via USB connects PC for local control, via 3G or4G modem connects PC for remote control.

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*Amplitec handle many engineering cases around the world,we have rich experience in mobile phone signal coverage project.

*Amplitec Own Chinese the largest signal booster manufacturing factory, so our quality control and production capacity leading the world.

*Most of Amplitec's signal booster have certificates,such as CE, RoHS, FCC, etc...

*Amplitec have rich exhibition experience, our signal boosters are recognized in many regions around the world.





Frequency Band

Any one in band 1, 2, 3, 4, 5, 7, 8, 20, 25, 28, 66 @ S20T-Bx

Any two in band 1, 2, 3, 4, 5, 7, 8, 20, 25, 28, 66 @ S20T-BxBx

Any three in band 1, 2, 3, 4, 5, 7, 8, 20, 25, 28, 66 @ S20T-BxBxBx


1~3 for each band


0.2 ~ 20 MHz can by set for each sub-band


UL 70dB , DL 70dB

Output Power

UL 15dBm, DL 20dBm

Gain Attenuate

1~31dB, Step of 1dB

ALC Control Range




Spurious Emission

≤-36dBm @ 9KHz~1GHz

≤-30dBm @ 1GHz~12.75GHz


Fully comply with 3GPP


Fully comply with 3GPP


Fully comply with 3GPP

Out of band Gain

Fully comply with 3GPP

Noise Figure

≤6dB @ S20T-Bx

≤8dB @ S20T-BxBx,  @ S20T-BxBxBx

Group Delay


Power Supply

DC 27V 3A @ S20T-Bx

DC 27V 5A @ S20T-BxBx

DC 27V 8A @ S20T-BxBxBx


250x268x58mm @ S20T-Bx

250x268x96mm @ S20T-BxBx

380x268x96mm @ S20T-BxBxBx


<3kg @ S20T-Bx

<5kg @ S20T-BxBx

<9kg @ S20T-BxBxBx

Note:The letter "x" means the 3gpp 4G band number: 1, 2, 3, 4, 5, 7, 8, 20, 25, 28, 66