Motorola APX 6000 - Figure 3-8. Transmitter Block Diagram (VHF); Figure 3-9. Transmitter Block Diagram (UHF1 and UHF2)

Theory of Operation: Transceiver Board 3-11
Figure 3-8. Transmitter Block Diagram (VHF)
Figure 3-9. Transmitter Block Diagram (UHF1 and UHF2)
Trident IC
Synthesizer
Loop Filter
TX VCO
Module
RX VCO
Module
RF Switch Matrix
TX Buffer Amp
TX Driver Amplifier
Transmitter FET VHF
Harmonic LP Filter
Antenna Connector
Directional
Coupler
SP3T RF Switch
To RX
Reverse Power Detection
TX SSI from VOCON
Log Amp Power Detector
Digital RF Attenuator
S
Ref. Oscillator
Trident IC
Synthesizer
Loop Filter
TX VCO
Module
RX VCO
Module
RF Switch Matrix
TX Buffer Amp
TX Driver Amplifier
Transmitter FET UHF
Harmonic LP Filter
Directional
Coupler
SP3T RF Switch
To RX
SP2T
Reverse Power Detection
TX SSI from VOCON
Log Amp Power Detector
Digital RF Attenuator
To Antenna
To RMT Port
S
Ref. Oscillator