Motorola APX 7000 Basic Service Manual page 177

Basic Theory of Operation: Analog Mode of Operation
RF Switch
TX Buffer Amp
RF Switch Matrix
Figure 3-9. Transceiver (UHF1and 700–800 MHz) Block Diagram
RF Switch
TX Buffer Amp
RF Switch Matrix
Driver Amplifier
Loop Filter
Trident IC
VCO Module
VCO Module
VCO Module
VCO Module
Driver Amplifier
Loop Filter
Trident IC
VCO Module
VCO Module
VCO Module
Figure 3-10. Transceiver (VHF and UHF1) Block Diagram
Switch
FET UHF1
Harmonic Filters
FET 700/800
SP3T RF Switch
To RX
Ref. Oscillator
VCO
TX SSI from Vocon
Switch
FET VHF
Harmonic Filters
FET UHF1
SP3T RF Switch
To RX
Ref. Oscillator
VCO
TX SSI from Vocon
Log amp Power Detector
Digital RF Attenuator
SP2T RF Switch
Coupler
Rev Power Detection
Log amp Power Detector
Digital RF Attenuator
SP2T RF Switch
Coupler
Rev Power Detection
Sec 2: 3-7
To Antenna
To RMT Port
To Antenna
To RMT Port