Kirisun DP770 - Circuit Description; RF Section; Transmitter Circuit

DP770 Service Manual
3. Circuit Description
3.1. RF Section
Figure 3-1 RF Schematic Diagram
3.1.1. Transmitter Circuit
Figure 3-2 Transmitter Circuit Diagram
Pre-Driver2 Drive-stage
Final-stage Tx/Rx Switch Low-pass Filter
Microstrip
Matcher
APC
To RX
Gate voltage control
Subtracter
Sampling resistor
BATT+
I/V
convertor
Attenuator
To GPS
TEMP
Sensor
Close To Final PA
Temp Det Level
Antenna
FGU
Pre-Driver1
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