ADC ClearGain Dual Inline TMAs User Manual

ClearGain® Dual Inline TMAs

Americas

SPEC SHEET

As mobile usage continues to increase, service providers are faced with the challenge of optimizing
and expanding their wireless networks to provide new and existing services. ADC’s ClearGain®
Tower-Mounted Amplifiers (TMAs) minimize the cost of network expansion and improve the
quality of service, allowing carriers to increase profitability from new and existing services.

ClearGain TMAs improve signal quality by boosting the uplink (RX) signal of a mobile system
immediately after the antenna. This compensates for the loss in signal strength that occurs
when the signal is passed through the coaxial feeder cable to the base transceiver station (BTS)
at the base of the tower. These TMAs perform this amplification with the lowest possible noise
contribution, resulting in a substantial increase in receiver performance and an improvement in
overall coverage. These improvements in quality of service allow mobile subscribers to place more
calls, make longer calls, and successfully complete calls in an expanded geographic area, resulting
in increased revenue.

Benefits:

• Small size and low weight. Allows for easy installation with minimal visual impact and
in weight-restricted implementations.

• Improved uplink coverage. TMAs enable base stations to receive mobile signals more clearly
in a wider coverage area than could otherwise be achieved.

• Increased RF performance. By improving signal quality and/or reducing mobile phone power
transmission, TMAs provide more successful call attempts, a reduction in dropped calls,
maximized data rate, improved call quality and the extension of handset battery life.

• Fully AISG compliant.

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ClearGain® Dual Inline TMAs

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INPUT

NO COM NC

ALARM

MHU

DISCONNECT

Power Distribution Unit

MHU1 MHU2 MHU3

Base

Station

Tower­Mounted
Amplifier

Bias-T

BTS

Americas

The ClearGain Dual Inline AWS TMA allows for mounting of the equipment to serve two RX paths in
one location on the tower, reducing time and expense in mounting the TMA. The inline feature also
allows for easier connection of the jumper cables to the antenna.

A ClearGain TMA system is modular, consisting of both a masthead unit (MHU) and a power distribution
unit (PDU), providing full compatibility with all base stations. Due to its exposed installation, the TMA
is designed to withstand demanding weather conditions and features lightning protection, fault
monitoring, and a fail-safe bypass circuitry system.

ClearGain Dual Inline TMAs

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ClearGain® Dual Inline TMAs

Americas

AWS Dual Inline Typical Specifications

ELECTRICAL
Nominal Impedance of RF Inputs and Outputs:
Frequency Range
TX: 2110 – 2155MHz
RX: 1710 – 1755MHz
Passband (RX)
Gain: 12db
Noise Figure: ≤1.4dB
Dynamic Range:
Input at 1 DB Gain Compression: +13dBm
0utput IP3: +25dBm
Bypass Insertion Loss: ≤2.0dB
Isolation in Tx Path: >50dB
Insertion Loss of TX Path (TX to ANT):
Passband Return Loss
Tx Band: 18dB
Rx Band: 18dB
Rx Rejection in Tx Band: >75dB

PHYSICAL
Dimensions (HxWxD):
Weight:
Housing:

50 Ohm

0.5dB

210 mm x 166 mm x 81 mm

4.5kg
Aluminium

CONNECTORS
Antenna Connector:
BTS Connector:

ENVIRONMENTAL
Operating Temperature:
Lightning Protection:
ANT Port 10kA 8/20us

ClearGain Dual Inline TMAs

VIBRATION
Storage:
Transport:
Operation:

REGULATORY
EMC: ETS 300 342-3

APPROVALS
AISG: AISG 1.1
CE: Per IEC 61000 and IEC 60950

QUALITY
MTBF: 500,000 hours

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7/16 DIN Female
7/16 DIN Female

-40°C to +60°C
BTS Port 10kA 8/20us

ETS3019-1-1
ETS3019-1-2
ETS3019-1-4 Class 4.1E

ADC is an active member

of the Antenna Interface

Standard Group.

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