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Bidirectional Tower Mounted Amplifiers (BTMA)

Quanzhou L-TEL Communication Equipment Co.,Ltd.

Bidirectional Tower Mounted Amplifiers (BTMA)

Bidirectional Tower Mounted Amplifiers (BTMA)
Product Features
Realize plug-pull independently, online maintenance, convenient for installation.
Have remote wireless monitoring, adjust the TMB parameters via messages.
Adopting advanced LDMOS power amplifier with highly linearity and low intermodulation, the linearity and intermodulation indexes of whole machine are excellent
power of per carrier frequency set independently, large output power, high signal quality and high performance price ratio.
provide multifold power connection (220V, 48V, 24V).
Automatic bypass function, while input power temperature or standing wave is too highthe equipment will bypass automatically to protect equipment, and give a warning at the same time. Then the fault information could reported timely, convenient for timely maintain.
Crate accord with IP55 protection and high heat-dissipation design, able to work outdoor all-weather
Overall product series and perfect power grade to satisfy different requirements of network coverage
can realize networking with multifold base station types(such as: Ericsson, Alcatel, Nokia, Hua Wei, Simon, etc) through different PDU.
Bidirectional Tower Mounted Amplifiers (BTMA) is equipment that amplifies the primary base station uplink and downlink signals at the same time. Its main functions are as follows:
1. Enhance the level strength of uplink and downlink, boost up deepness and extent coverage ranges.
2. By amplify the uplink signal to debase noise of base station receiving system, enhance sensitivity.
3. Debase dropping rate and handoff rate, enhance talking quality.
4. Increase traffic, enhance economy benefits.
5. Debase mobile phone output power, purge electromagnetic environment.
Our products, covering from common communication 2G frequency(CDMA450, CDMA800, CDMA1900, GSM, EGSM, GSM1800, GSM1900, DCS, PCS, WLAN), 3G frequency(WCDMA, UMTS, CDMA2000), Trunking Communication(TETRA, iDEN, GoTa, GT800, 350Mhz Police Communication), Railway Communication System(450MHz Radio Train Dispatch Communication Series, GSM-R Series), Military Communication, FM Broadcast Communication, UHF、VHF Interphone Communication, Marine Communication, Sea Area Coverage Systems, output power can be chose from 40W(46dBm)to 200W(53dBm).

Technical parameters:

Product Tags:

output power


base station


telecommunication tower


Maximum output power/per carrier

46 dBm, 48 dBm, 50 dBm



Gain adjustment range


Noise factoruplink

≤3.0 dB (at maximum gain)


Control range≥30 dB

Bypass loss

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