Hytera MD78X Service Manual

UHF3 (350
–
400 MHz)
Troubleshooting Flow Chart
33
[3] The output amplitude of the TX LO signal at TP803 is about 10 dBm. Make sure that the back-end
circuit is disconnected during test.
[4] The gain is 16 dB and the input signal is 0 dBm at Q801.
[5] The gain is 15 dB and the input signal is 0 dBm at Q805.
[6] The gain is 11 dB and the input signal is 0 dBm at Q804.
[7] The gain is 10 dB and the input signal is 0 dBm at Q802 and Q803.
6.4 RX Circuit

Hytera MD78X Specifications

General

Brand	Hytera
Model	MD78X
Category	Radio
Language	English