Motorola APX 5000 - Figure 3-2. Receiver Block Diagram (VHF); Figure 3-3. Receiver Block Diagram (UHF1)

Basic Theory of Operation: Analog Mode of Operation Sec 1: 3-3
Figure 3-2. Receiver Block Diagram (VHF)
Figure 3-3. Receiver Block Diagram (UHF1)
Digital RF
Atten.
SP2T
Rx/Tx
Abacus III
2nd
LO
18Mhz
CLK
Σ∆ ADC
CLK
Synth
Dec.
Filter
SSI
LO
Synth
RF ANT.
50 ohm
Reversed
Power
To Tx
To RF/Vocon/GPS
Connector
VHF VHF
Digital RF
Atten.
SP2T
Rx/Tx
Abacus III
2nd
LO
18Mhz
CLK
Σ∆ ADC
CLK
Synth
Dec.
Filter
SSI
LO
Synth
RF ANT. AUX ANT.
SP2T
RF/AUX
50 ohm
Reversed
Power
To Tx
To RF/Vocon/GPS
Connector
UHF1 UHF1