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:
- Enhance the level strength of uplink and downlink, boost up
deepness and extent coverage ranges.
- By amplify the uplink signal to debase noise of base station
receiving system, enhance sensitivity.
- Debase dropping rate and handoff rate, enhance talking quality.
- Increase traffic, enhance economy benefits.
- Debase mobile phone output power, purge electromagnetic
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).
☞Realize plug-pull independently, online maintenance, convenient
☞Have remote wireless monitoring, adjust the TMB parameters via
☞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 high，the 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
☞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
Maximum output power/per carrier
46 dBm, 48 dBm, 50 dBm
Gain adjustment range
≤3.0 dB(at maximum gain)
Control range≥30 dB
≤ -36dBm(9KHz ~ 1GHz)
≤ -30dBm(9KHz ~ 12.75GHz)
Uplink maximum input power
Downlink input power range
15-40dBm/per carrier frequency
Local and remote monitoring
Power, gain,standing wave, input powerindication, output powerindication, temperatureindication,fault alarm ,etc.
Remote monitoring methods
GPRS or Internet or SMS
Averagefaultless working time
Mainlyapplicable to coverage of such open areas: rural area, road,mountainous area,etc.