High linearity and low noise performance.

Balanced LNA design and power failure bypass for high reliability.

Light weight and compact design.

Designed for co-siting purposes.

Wall mounting and mast mounting.

Built-in lightning protection up to 10 kA.

Support AISG 2.0 protocol.

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Features

Appearance and Block Diagram

MTMA-1800/2100-12dB-2BTSport2ANTport-AISG

Model: ATADU2002 (AISG 2.0)

The multiband tower mounted amplifier (MTMA) is a low-noise amplifier installed near the antenna to

satisfy the co-siting purposes. It helps to improve the signal-to-noise ratio and enhance the receiving

sensibility of the BTS system. It enhances the uplink coverage and improves uplink and downlink imbalance

of the base station. It effectively reduces the transmitting power of cellphones, improves voice and data

communication quality. When scanning the AISG ALD, the MTMA can be operated from one primary

controller, either on BTS0 or BTS1 port. When scanning the AISG ALD, the TMA is responding to the AISG

controller with two individual serial numbers (unique IDs) with each their two subunits (two subunits per

frequency band).

Product Description

Tx Specifications

Frequency range (MHz) 1805 - 1880 2110 - 2170

Bandwidth (MHz) 75 60

Insertion loss (dB) Typ. < 0.45 Typ. < 0.35

Return loss (dB) 18

Input power (W) < 160 (+52 dBm) CW

< 2000 (+63 dBm) peak

Intermodulation products in Rx band (dBm) -110 (3rd order; with 2 x 43 dBm) -122 (7th order; with 2 x 43 dBm)

Rx Specifications

Frequency range (MHz) 1710 - 1785 1920 - 1980

Bandwidth (MHz) 75 60

Return loss (dB) 18 (DC ON)

14 (DC OFF)

Insertion loss in by-pass mode (dB) Typ. < 3.0

Gain (dB) 12 1

Noise figure (dB) Typ. < 1.2 Typ. < 1.2

Output 1dB compression (dBm) 12

OIP3 (dBm) 24

Electrical Specifications

DC supply voltage (V) 9 - 30

Operating current per TMA (mA)

(without RET)

@12 V 245 5

@17 V 175 5

@30 V 105 5

Alarm management AISG

Power consumption (W) < 3.0

Environmental Specification

Operating temperature range () -40 ... +65

IP rating IP67

MTBF (hours) > 1,000,000

EMC ETS 300 342-3

Lightning protection (kA) 10 (8/20 us)

Mechanical Specification

MTMA dimensions (W x H x D) (mm) 196 x 280 x 110

(without connectors, without brackets)

Packing dimensions (W x H x D) (mm) 245 x 475 x 220

MTMA weight (kg) 7.0 (with brackets)

Packing weight (kg) 8.2

MTMA Volume (L) Approx. 5.9

AISG connector 8-pin female, IEC 60130-9 (pin1 & pin6: 8.5V - 30V DC, pin3: RS485B, pin5: RS485A,

pin7: DC return, other pins: not connected)

Mounting Wall mounting: with 4 screws (max. 8 mm diameter)

Mast mounting

Mast diameter (mm) Default: 30 - 125 // Optional: 40 - 140

Connector 4 x 7/16 DIN Female ( Two ports are BTS and two ports are ANT)

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MTMA-1800/2100-12dB-2BTSport2ANTport-AISG

Model: ATADU2002 (AISG 2.0)

Unit : mm

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Huawei Technologies Co., Ltd. Bantian, Longgang District, Shenzhen 518129, P.R.China www.huawei.com

Any previous datasheet issues become invalid. Issue: 2014-07-02

MTMA-1800/2100-12dB-2BTSport2ANTport-AISG

Model: ATADU2002 (AISG 2.0)