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screen. Notch freq is adjustable in 40 Hz
steps from 20 – 4000 Hz.
Notch width is adjustable – while NCH FRQ
is shown on the display, press the MULTI
encoder or the NCH button again. The
display will read NCH WID and the current
width value. The width is adjustable 10 –
300 Hz in 10 Hz steps.
As notch is post-AGC, signal strength of
notched signals will still be shown on the S-
meter.
The alternate function of this button is NB –
noise blanker. OMNI-VII is equipped with a
DSP noise blanker with seven selectable
stages of aggressiveness. Press ALT then
NB and turn the MULTI knob to set level.
(28) SPO/S-T
OMNI-VII is equipped with adjustable CW
sidetone and autotracking CW offset.
Pressing and holding the SPOT button will
produce a tone at the value set by the
operator (default is 700 Hz). This tone can
be matched to the received tone of an on-air
CW signal to achieve zero beat. Press and
hold the SPOT button while tuning in a CW
signal. When the tone of the received signal
and SPOT match, you are on the proper
frequency.
To adjust the SPOT frequency, press SPOT
and then turn the MULTI knob. S-T FRQ
and the value or SPOTVOL and its value will
appear on the screen. Turn the MULTI knob
to adjust. This can be done while holding
the SPOT button down to hear the tone or
the spot volume as it tracks.
The alternate function of this button is
sidetone volume (S-T). Press ALT then S-T.
Turn the MULTI knob to adjust sidetone
volume. Sidetone volume is adjusted
independent of the spot volume described
above.
This feature is also adjustable via the menu
system.
588 manual
Part #74409
Printed in USA
(29) SP/VOX
The primary function of this button (SP) is
determined by which mode is selected on
the transceiver.
In CW modes, the SP button is used to turn
the CW keyer on and off. Press SP. The
display above the SP button will change
from OFF to either A or B depending on
whether the keyer has been configured for
Curtis mode A or B via the menu system.
See CW KEYER in Section 4. Curtis mode
A and B cannot be toggled without going
into the menu – SP will only turn the keyer
on in the selected mode or off.
After pressing SP, the green description line
on the screen next to the MULTI knob will
change to read KEY SPD WPM with the
keyer speed value. Turn the MULTI knob to
adjust the keyer speed.
The alternate function of the button is to
enable VOX (voice activated transmit) in all
other modes. Press ALT then VOX. The
VOX annunciator on the screen will highlight.
Speak into the microphone to transmit.
Note: there are menu settings which affect
the ability or inability for VOX to operate with
desired action. VOX trip, Anti-VOX, and
VOX hang are all adjustable via the menu
system. See VOX TRIP, ANTI-VOX, and
VOX HANG in Section 4.
Second release – August 2007
15
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