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Which among the following is not considered for detection of abnormal behaviour in power amplifier?(a) Temperature(b) Transmitted power level(c) Received power level(d) VSWRI got this question during a job interview.My enquiry is from Hardware Architecture in chapter Software Defined Radio Architecture of Cognitive Radio

Answer»

Right answer is (c) Received power level

To explain I would say: Power amplifier is a part of RF front end section in transmit mode. It must be INFORMED of transmit/receive mode to start and stop transmission. Transmitted power level, VSWR, and TEMPERATURE are MONITORED for detection of abnormal behavour in power amplifier.



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