Heathkit SB-401 - SSB TUNE-UP

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Ss
SSB TUNE-UP
Tune up the Transmitter on the desired band as for CW. Then
position switches and controls as follows:
SWITCH OR
CONTROL
POSITION
Usually LSB on 3.5 and 7.0 bands, and USB on 14.0 and
MODE USB or LSB higher bands.
; If background noise trips VOX, reduce VOX
VOX
GAIN
Fully
clockwise
8
Pp
,
If the receiver audio output trips the Trans-
ANTI-VOX As required
mitter VOX, advance the ANTI-VOX until the
receiver audio has no effect,
SWITCH OR
CONTROL
COMMENTS
NOTES:
1. When aligned as a Transceiver: use the LOCKED
position for transceive operation with the Receiver (or
an external) LMO; use the UNLOCKED position for
independent operation of the Receiver and Transmitter
on the same band.
2. When aligned with the SB-401-1 Crystal Kit: use the
UNLOCKED position for independent operation; use
the LOCKED position for operation with the
SB-303/SB-301/SB-300 or SB-640 LMO, independent of
band.