Heathkit SB-401 Assembly Manual page 134

Ssb transmitter
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quency, In this mode, the Transmitter
C~
carrier
crystal is used
when
the key
is
down
and the Receiver
BFO crystal
is used when
the key is open. (The Transmitter carrier
crystal
frequency
is
1
kHz removed from
the Receiver
BFO frequency.)
This
pro-
cedure
places both the received
and trans-
mitted signals
on
the same
frequency,
pro-
viding the tuning instructions
are followed
properly.
( ) Tune
up
the Transmitter,
using steps A
through I
of
the CW
(Transmitter
Only)
tune-
up chart on Page
114.
( ) Tune
in the desired
CW
signal and set the
Receiver main tuning dial 1 kHz
higher than
the zero beat. Switch the Receiver
MODE
switch to CW only
if
the CW narrow band-
pass filter is in the Receiver. The Receiver
and Transmitter are
now on the same
ire-
SWITCH OR
TRANSMITTER
RECEIVER
COMMENTS
CONTROL
FUNCTION
TRev
STBY
MODE
CW
USB
Key plugged into KEY jack
with key open
BAND
SAME AS
DESIRED
Adjust
the
Receiver
main
RECEIVER
BAND
tuning for desired frequency
or open spot on band.
METER
REL
PWR
VOX
DELAY
As desired
RF GAIN
Fully clockwise
AF GAIN
Use as volume control
ANTI-VOX
Not used
LEVEL
Fully counterclockwise
FREQ CONTROL
LOCKED (RCVR)
FINAL LOAD
50
n
FINAL tune
Desired band
Preselector
Adjust for portion
of band used
SIDE TONE
Desired intensity
LEVEL
Set the switches
and controls
of the Transmitter
and Receiver
as follows:
cw
Page 110

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