ADC Tower-Mounted Amplifiers manual Introduction, System Overview

Models: Tower-Mounted Amplifiers

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ClearGain® Tower-Mounted Amplifiers

Americas

ClearGain® Tower-Mounted Amplifiers

Introduction

Unacceptable network quality is one of the main reasons for mobile subscriber churn. With industry churn at their current rates, a service provider’s entire customer base could be lost in as few as three years. The cost of acquiring new subscribers to replace the existing customer base can be enormous. Improvements in quality of service can directly impact a service provider’s profitability through the cost savings associated with increased subscriber retention and the additional revenue gained from increased billable minutes of use resulting from improved signal quality.

While subscribers are willing to pay a premium for data services, improved quality of service is necessary to provide new data services. Due to the tradeoff between bit rate and bandwidth inherent to data services, improved signal quality is required to achieve the same level of performance at even higher data rates. ADC’s ClearGain Tower-Mounted Amplifiers help provide this improvement in signal quality.

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. ClearGain 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

System Overview

The ClearGain TMA system is modular, consisting of a Masthead Unit (MHU), a Power Distribution Unit (PDU) and a Bias-T Unit. This system provides full compatibility with all base stations. The ClearGain MHU offers dual duplex operation and incorporates a highly advanced fixed-gain, low- noise amplifier (LNA) and high-performance filters for added reliability. The MHU amplifies each band to maximize signal quality and optimize coverage.

The ClearGain MHU features a slim, lightweight design. This allows two ClearGain TMAs to

be mounted with one set of brackets thereby, conserving valuable and costly tower space and reducing clutter on the tower. The TMA is protected with a strong, aluminum sleeve construction designed to ensure superior weather protection and resistance to corrosion, resulting in increased reliability.

In the ClearGain TMA system, DC power is supplied to the MHU from a ClearGain PDU. The PDU also provides alarming and monitoring of the feeder cable and up to six MHUs from a single unit. The flexible design of the ClearGain PDU allows it to be rack- or wall-mounted on the side of a BTS cabinet.

An external Bias-T Unit is used in conjunction with the ClearGain PDU. The Bias-T inserts DC power onto the coaxial cable and extracts alarm and monitoring signals from the coaxial cable.

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subscribers to place more calls, make longer calls, and successfully complete

calls in an expandedAntenna geographic area, resulting

in increased revenue.

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ADC Tower-Mounted Amplifiers manual Introduction, System Overview

Tower-Mounted Amplifiers specifications

ADC Tower-Mounted Amplifiers (TMAs) represent a crucial component in the modern telecommunications landscape, particularly in the enhancement of signal quality across cellular networks. These amplifiers are predominantly used in conjunction with antennas mounted on towers to improve the transmission range and reliability of wireless communications.

One of the key features of ADC TMAs is their ability to boost received signals while minimizing interference and noise. This is essential in densely populated areas or locations with challenging topography, where signal degradation is common. By amplifying weak signals, TMAs help ensure high-quality voice and data transmission, which is increasingly important as the demand for mobile data continues to rise.

In terms of technology, ADC TMAs typically employ low-noise amplifier (LNA) technology, which is designed to amplify signals without introducing significant noise. This enhances signal integrity, allowing for more effective communication between the network base stations and user devices. Additionally, many TMAs are built with advanced filtering technologies to selectively enhance desired frequencies while rejecting unwanted signals. This feature is crucial for maintaining the clarity and quality of mobile communications.

ADC TMAs are also characterized by their robust design, often featuring weather-resistant casings that protect against the elements. This is vital as these amplifiers are usually installed in outdoor environments exposed to varying weather conditions. Their ability to withstand extreme temperatures, humidity, and other environmental challenges makes them reliable components of telecommunications infrastructure.

Installation flexibility is another highlight of ADC TMAs. They can be integrated into various tower designs and are compatible with multiple antenna types. This versatility ensures that network operators can implement them in a wide range of deployment scenarios, enhancing their operational efficiency.

Another critical characteristic is the power consumption of these amplifiers. ADC designs often prioritize energy efficiency, which is particularly important given the growing emphasis on sustainability in telecommunications. By reducing the energy footprint of network operations, ADC TMAs not only lower operational costs but also contribute to greener network practices.

In summary, ADC Tower-Mounted Amplifiers are essential for improving signal strength and quality in wireless telecommunications. With advanced technologies such as low-noise amplification and filtering, robust weatherproof designs, installation flexibility, and a focus on energy efficiency, these amplifiers play a pivotal role in supporting the ever-evolving demands of mobile communication networks. Their integration ensures enhanced connectivity, ultimately fostering a more connected society.