Raymarine RAY 240 - RAY 240 RF PCB Block Diagram

Raymarine Limited. Registered in England. Company no. 1177969 Page 10
Registered Office: Anchorage Park, Portsmouth P03 5TD
RAY 240 RF PCB Block Diagram
PA PLL
Reference
Oscillator
Clock
LE
155.000 MHz -
165.000 MHz
AF
133.600 MHz -
141.875 MHz
APC Circuit
High/Low
Power
LNA
155.000 MHz -
163.275 MHz
LNA
LNA
Filter
Tuning
21.4 MHz
16.9 MHz
16.445 MHz
139.625 MHz
20.945 MHz
AF
Transmitter
Receivers
Channel
Selectable
Receiver
AF
CH70
Receiver
Splitter
Noise
Noise
SwitchSwitch
Tx/Rx
Tx/Rx
Data
Lock
VCO Tx/Rx
Adjust 1
Adjust 2
Adjust 3
VCO C. Tune
Filter
Tuning
Filter
Tuning
Filter
Tuning
D/L
R
e
f
T
u
n
e
C
H
7
0
2
n
d
L
O
T
u
n
e
A
C
2
n
d
L
O
T
u
n
e
C
H
7
0
1
s
t
L
O
T
u
n
e
A
n
a
l
o
g
u
e
s
i
g
n
a
l
f
r
o
m
o
n
b
o
a
r
d
D
/
A
c
o
n
v
e
r
t
e
r
Analogue signal from
Processor board
Digital signal
FM Detector
FM Detector
Attenuator