Download - DTMA900 Datasheet
DTMA900 Datasheet Issue:02
DTMA (Dual Tower Mounted Amplifier) is both main and diversity branch
and fits with cross-polarization antennas. DTMA is installed near the antenna at
the tower top to improve receiver sensitivity of the base station. The usage of
DTMA will result in an increase of successful call attempts, reduction of call
drops, maximized data transmission rate, improved call quality and extended
handset talk time.
Features
High linearity and low noise performance .
Balanced LNA design and power failure bypass for high reliability .
Light weight and compact design .
Wall mounting and mast mounting .
Built-in lightning protection .
Support AISG1.1 or AISG2.0 protocol .
Appearance And Block Diagram
Product Description
DTMA2100 Double Dual Duplex Tower Mounted Amplifier DatasheetTechnical Specifications
Item
Frequency rangeBandwidthInsertion lossReturn lossTx-Rx rejectionGroup delay variationInput power
Intermodulation products in Rx band
Frequency rangeBandwidthReturn loss
Insertion loss in by-pass modeGainGain rippleNoise figureOutput 1dB compressionOIP3Group delay variationRx-Tx rejection before LNARx-Tx rejection after LNA
CWA Mode AISG ModeDC supply voltage 9V~15V 9V~30VOperating current per TMA(without RET) 100mA~300mA 50mA~470mAAlarm management 340mA~760mA AISGPower consumption
Operating temperature rangeIP ratingMTBFEMCLightning protection
RF connectors
AISG connector
MountingWeightMast diameterDimensions(H×W×D)
≤5.6kg(with brackets)
301mm×196mm×83mm(without connectors, without brackets)
Tx Specifications
Mechanical Specification4×7/16 female8-pin female, IEC 60130-9(Pin 3: RS485B, pin 5: RS485A, pin 6: 9V~ 30 V DC,pin 7: DC return, other pins: not connected)Wall mounting/Mast mounting
IP67>1000000hETS 300 342-3
≥55 dBElectrical Specifications
10kA (8/20us)
<5WEnvironmental Specification
-40℃~+65℃
≥12 dBm
≥25 dBm<40ns@5MHz
≥75 dB
≤2.2 dB12±1 dB
≤1.0 dBTyp. 1.4 dB
Specification
935~960MHz25MHz
≤0.6dB(Full temperature)
30mm~125mm
≥18dB
≥45dB<40ns@5MHz<160 W (+52 dBm) CW<1.6 kW (+62 dBm) peak≤-117dBm(2 TX carriers at 43 dBm)
Rx Specifications890MHz~915MHz25MHz
≥18dB (DC ON)≥15dB (DC OFF)
Mechanical
Address: Huawei Technologies, Bantian Base, Longgang District, Shenzhen 518129 P.R.China.