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FROM 466 kHz
A3
~
00
TOAGC
' - - - -... DETECTOR
FROM AS
RECEIVER
CONTROL
TOA5
ISB
1
.,./
LINK
465 kHz
AGC
I
465 kHz
I
BUFFER
.1
CONTROL·
..
AMP.
LED AMP
FILTER
TOAGC
"
IF
1456 kHZ. IF OUT
OUTPUT
TOJ2
AMP
BUFFER
456 kHz
AMP.
.1
FROMA8
..
BFO
RF
SWITCH
FROMA9
RECEIVER
CONTROL
Figure 4-5, A4 IF Circuits, Functional Block Diagram
CARRIER
AFOUT
TO
DETECTOR
SELECT
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