Specifications
Under crowded band conditions it will be advantageous to use the
.
4 KC selectivity position and
reposition
the
Passband
knob for
maximum S-Meter reading on a signal tuned in to the desired pitch.
After the
Passband
control is adjusted thus, simply tune in a CW
signal for maximum S-Meter reading and it will automatically be the
correct pitch.
It will sometimes be to your advantage to shift the
passband
of the
receiver to the other side of the BFO frequency for better copy under
crowded band conditions. This can be accomplished simply by re-
positioning the
Passband
knob to the alternate dot and retuning the
station with the main tuning knob.
Noise and strong interfering signals can be attenuated using the N .B.
and Notch functions as described later in this section.
Many operators prefer no AVC on CW. If this is your preference,
turn the SSB/CW-AM switch to the AVC OFF position, turn the A.F.
Gain fully clockwise and regulate receiver gain with the
R,
F. Gain
---
control.
D. AM Reception
1.
Set the
Passband
selector lever to 4.8 KC and set the
Passband
tuning knob to the middle of the longest line.
2.
Set the SSB/CW-AM switch to AM.
3.
Tune in a signal with the main tuning knob.
Interfering heterodynes can now be eliminated using the Notch control,
and noise can be reduced or eliminated by turning the Function switch
to N. B. A detailed description of these functions follows.
E.
RTTY Reception
1.
Set the
Passband
selector lever to the 1.2 KC position and set
the
Passband
knob to the right of the dot corresponding to lower
sideband.
2.
Set the SSB/CW-AM switch to Fast AVC.
3.
Tune in a signal with the main tuning knob for correct indication
on your terminal unit tuning indicator and adjust
Passband
tuning
knob for equal S-Meter reading of both mark and space.
If the station you are copying is sending upside down (mark low-space
high) turn the pa ssband control to the left of the “upper” dot and retune
the station with the main tuning dial.
If noise is a problem,turn the Function switch to N. B.
Interfering
heterodynes can be eliminated using the Notch control.
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