Rf Pcb Block Diagram - Raymarine RAY 240 Manual

RAY 240 RF PCB Block Diagram
Tx/Rx
Switch
155.000 MHz -
163.275 MHz
Receivers
D/L
Attenuator
CH70
Receiver
Raymarine Limited. Registered in England. Company no. 1177969
Registered Office: Anchorage Park, Portsmouth P03 5TD
High/Low
APC Circuit
Power
PA
Channel
Selectable
133.600 MHz -
Receiver
141.875 MHz
Filter Filter
Tuning Tuning
LNA
139.625 MHz
Filter Filter
Tuning Tuning
LNA
Analogue signal from
Digital signal
Processor board
Tx/Rx
155.000 MHz -
165.000 MHz
Switch
VCO Tx/Rx
Adjust 1
Adjust 2
Adjust 3
VCO C. Tune
21.4 MHz
16.9 MHz
Page 10
Transmitter
LE
Data
PLL
Clock
Lock
Reference
Oscillator
AF
AF
FM Detector
Noise
20.945 MHz
16.445 MHz
Noise
AF
FM Detector