User's Manual
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5. Power Supply
IC4 supply stabilized power for the control circuit. In transmit mode, IC9 is turned on and
supply voltage for the transmit VCO; Q2 is turned on and supply operation voltage for the
transmitting front-end amplifier. In receiving mode, IC9 is turned on and supply voltage for
the receive VCO high-frequency amplified circuit; Q1 is turned on and supply operation
voltage for the receiving circuit.
6. Control System
The IC8 CPU operates at 4.9152MHz and supply control signal voltage for the control
circuit.