Circuit Description; Rf Section; Tx Circuit; Diagram Of Rf Section - Hytera PT580 Service Manual

Circuit Description

1. RF Section

The frequency range for PT580 F5 is 806~870MHz (in TMO mode, the frequency range for TX is
806~825MHz, while the frequency range for RX is 851~870MHz; in DMO mode, the frequency range for
both TX and RX is 851~870MHz). The block diagram for the RF section is shown below.
PA
The RF section consists of PA module, Cartesian Loop ASIC module, RX module, FGU and power
supply module (POWER_RF).

1.1 TX Circuit

Cartesian
RX
Loop ASIC
BB TOP
Figure 1 Diagram of RF Section
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Service Manual
FGU
POWER_RF