ADC Tower-mounted Amplifier ClearGain - Manual

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ClearGain ® AISG Compliant TMAs
Americas
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.
ClearGain TMAs are fully AISG Compliant. Therefore, the TMA system allows for Remote Electrical
Tilt (RET) signals to be injected into the system at the BTS and extracted out of the TMA from
a special RET connector. The benefit of this system is that the carrier does not have to run RET-
specific cables up the tower resulting in less wind loading, fewer components, and lower costs.
Features:
• Highly advanced LNA amplifies RX signal for
improved receiver performance and increase
in coverage
• Fully AISG Compliant
• Dual duplex feature reduces the number of
feeder cable runs by providing simultaneous
operation of TX and RX with low TX loss
• Advanced filtering maintains the lowest
possible noise figure for improved quality
of service
• Slim, stackable design conserves tower
space and reduces tower-related costs
• Aluminum sleeve construction protects
components from the elements
• Modular system is fully compatible with all
base stations
• Power and alarming for up to six masthead
units is provided from a single unit at the
base station