Transmission power level monitoring apparatus employed in TDMA communication system

摘要

A transmission power level monitoring apparatus suitable for use in a digital communication system using a TDMA method. The transmission power level monitoring apparatus detects start and end times of a transmission slot in each TDMA frame. An A/D converter is triggered in the start and end times so as to convert transmission power into a digital signal. It is then decided whether or not the transmission power is in an improper state during the transmission slot and a nontransmission slot in each TDMA frame. If the answer is yes, then measures such as a display of a message indicative of its improper state on a display device, the transmission of data indicative of its improper state to other system and turning off a power source for a power amplifier of a transmitter are taken.