Board And Unit - Kenwood TS-820 Operating Manual
Ssb transceiver
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Also See for TS-820:
- Service manual (109 pages) ,
- Operating manual (44 pages) ,
- Manual (11 pages)
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5.2
BOARD AND UNIT
IF BOARD
(X48-
1150-00)
The
IF
Board
is
very
important
for
operation
of tr
ansmitter
and
rece
iver.
It is
composed of
the
m
icrophone amplifier,
ring
modulator.
crystal fil
ter. transmit -receive
IF
amplifier
and the ring
detector.
in
addition
to
the
noise blanker circuit.
AGC
mnplifier. S meter
amplifier.
speech
processor
and·
mo-
~·
!i
·
·~~
..
:=::t
~
r
~~ '"""1~i
?
i~;.;1
a
:;!
~ 5!i;§~~fd
i!
ii~
~
!7X;t.'t~
e
•!&3i
r-f(~
·s
.
. ....
.
~
.
. . . . .
.....
~
9' ::.
~
,.
~.
:~
~·
..
c·
·
O?>(•J(·)(
•
=
.....
.
..
.
.
~->;:;.~
n
Fig.
12 IF
Board
26
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