The following circuit it's a PSU, which controlled with PIC microcontroller, and provide all
necessary voltages for the transceiver. The BYV32 is an opposite polarity
protection and the BZW50 is an over voltage protection. The IRF9530 works as
switch. The TX and RX at 2N7000 turns on or off the voltages to receiver or
transmitter. The 5 volt is for the microcontrollers.
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| PSU |
The TX,RX, Volt/PIC and the ON-OFF, are connected to microcontroller.
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