Figure 6-3. Vhf (146-174 Mhz) Radio Circuit Block Interconnect Diagram - Motorola EP450 Service Manual

VHF 146-174 MHz PCB 8486342Z13-C Schematic Diagrams, Overlays, and Parts Lists
Chapter 6 VHF 146-174 MHz PCB 8486342Z13-C Schematic Diagrams, Overlays, and Parts Lists
USWB+ 5V 5T 5R 3V
USWB+ 5V 5T 5R 3V
CONTROLLER
SPI_DATA_OUT
HKLN4216A
TX_ENA
PWR_SET
DEMOD
BW_SEL
RSSI
5V 3V
5V 3V
MOD_OUT MOD_IN
16_8_MHZ 16_8_MHZ
SYNTH_VHF_R2
SYNTH_CS SYNTH_CS
SPI_CLK SPI_CLK
VCO_MOD
SPI_DATA_OUT
LOCK LOCK
VHF R2
5V
5V
RX_FE_VHF_R2
DEMOD RX_BE
BW_SEL IF_IN IF_OUT
RSSI
5R 3V
5R 3V
PRESC PRESC
RX_INJ
V_STEER V_STEER
VCO_VHF_R2
V_SF V_SF
VCO_MOD
TX_INJ
TRB TRB
USWB+
5R
USWB+
TX_ENA
5R
TX_VHF_R2
PWR_SET
RX_IN RX_OUT
TX_INJ
RX_INJ

Figure 6-3. VHF (146-174 MHz) Radio Circuit Block Interconnect Diagram

6-5
5T
5T
November 24, 2003