Motorola solutions Mag One VZ Series - VZ-28 Circuit Description; Receiver Circuit Description; Transmitter Circuit Description

VZ-28 Circuit Description
一．RECEIVER
The signal from the antenna is passed through a transmission/reception
selector circuit and is amplified by T217. The signal after amplified enter to 1846
for processing then output the audio, the audio signal is amplified by UTC2822
and output by the speaker at last.
二.TRANSMITTE
The signal from the microphone passes through 1846, after modulation in
the carrier modulation, the modulation signal with the carrier promotes by
buffer T121,T131, and amplified by T141 then sends to the antenna terminals.
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