Motorola APX 7000 - Figure 3-3. Receiver Block Diagram (VHF and 700-800 Mhz); Figure 3-4. Receiver Block Diagram (UHF1 and 700-800 Mhz)

Basic Theory of Operation: Analog Mode of Operation Sec 1: 3-3
Figure 3-3. Receiver Block Diagram (VHF and 700–800 MHz)
Figure 3-4. Receiver Block Diagram (UHF1 and 700–800 MHz)
SW
2:1
700/800
VHF
Abacus III
2nd
LO
18Mhz
CLK
CLK
Dec.
Filter
LO
ADC ΣΔ
SW
2:1
PER
SP3T
AUX
DPLXR
To
RF/Vocon
Connector
SSI
RMT Port
SW
2:1
700/800
UHF1
Abacus III
2nd
LO
18Mhz
CLK
CLK
Dec.
Filter
LO
ADC ΣΔ
SW
2:1
PER
SP3T
AUX
DPLXR
To
RF/Vocon
Connector
SSI
RMT Port