Tower Mounted Amplifiers is LOW Noise Receive Amplifier used to improve uplink sensitvity of BTS;
normally installed next to antenna. it is necessary because :

TMA can extendcoverage by providing Network Balance TMA definetly will reduce number of BTS TMA will improve the quality of services to subcriber TMA can increase data transmission rate in GPRS, EDGE and WCDMA system TMA may reduce infrastructure Cost to Operator through lesser number of BTS

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