Cw Convenience Features; Cw Spotting (Zero-Beating) - Yaesu FTDX9000MP Operation Manual

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ONVENIENCE ONVENIENCE
"Spotting" (zeroing in on another CW station) is a handy technique for ensuring that you and the other station are precisely
on the same frequency..
[PITCH] Knob
For everyday operation, the (CW) [ PITCH ] control al-
lows you to set the center of the receiver passband, as well
as the offset pitch of your CW carrier signal, to the tone
pitch you prefer to listen to.
The front panel's Tuning Meter may also be moved so you
can adjust your receiver frequency to center the incoming
station on the pitch corresponding to that of your trans-
mitted signal.
Using the SPOT System
Press the [ BK-IN/SPOT ] key to activate the monitor fea-
ture, then press and hold in the front panel's [ BK-IN/
SPOT ] key, the Spot tone will be heard. This tone corre-
sponds to the pitch of your transmitted signal, and if you
adjust the receiver frequency to match the pitch of the re-
ceived CW signal to that of the Spot tone, your transmit-
ted signal will be precisely matched to that of the other
station.
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The Sub band (VFO-B) frequency display will
indicate the offset tone frequency when [ BK-
IN/SPOT ] key is pressed.
You may adjust the Spot tone volume level by
rotating the [ MONI ] knob.
The CW Spotting process utilizes the Spot tone or the bar indicator, with the actual offset pitch being set by the
(CW) [ PITCH ] control on the front panel. The offset pitch may be set to any frequency between 300 Hz and
1050 Hz, in 50 Hz steps, and you can either match tones audibly (using the [ BK-IN/SPOT ] key) or align the
receiver frequency so that the central LED on the abr indicator lights up. Note that there are 11 "dots" on the bar
indicator, and depending on the resolution selected, the incoming CW signal may fall outside the visible range of
the bar indicator, if you are not reasonably close to the proper alignment of tones.
The displayed frequency, on CW, normally reflects the "zero beat" frequency of your offset carrier. That is, if
you were to listen on USB on 14.100.00 Mhz to a signal with a 700 Hz offset, the "zero beat" frequency of that
CW carrier would be 14.000.70 MHz; the latter frequency is what the FT
However, you can change the display to be identical to that of what you would see on SSB by using Menu item
"MODE-CW 057 CW-FREQ DISPLAY" and setting it to "FREQ" instead of its default "PITCH" setting.
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TURES
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CW S
POTTING
[BK-IN/SPOT] Switch
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ERO EATING
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In a tough DX pile-up, you may actually want to
use the SPOT system to find a "gap" in the spread
of calling stations, instead of zeroing in precisely
on the last station being worked by the DX sta-
tion. From the DX side, if a dozen or more opera-
tors (also using Yaesu's SPOT system) all call pre-
cisely on the same frequency, their dots and dashes
merge into a single, long tone that the DX station
cannot decipher. In such sitiuations, calling
slightly higher or lower may get your call through.
The bar indicator on the front panel may be uti-
lized for CW frequency adjustment, as well. Its
configuration is set via Menu item "DISPLAY
016 BAR DISPLAY SELECT"; at the factory,
the bar indicator is already set up for the "CW
TUNE" selection.
Retune (Shift to Lower Frequency)
Zero-In
Retune (Shift to Higher Frequency
: When the CW reverse feature is activated, the indication of the Tuning
Offset Indicator will also be reversed.
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9000MP displays, by default.
DX
FT 9000MP O
DX
VDD BIAS TEMP SWR
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PERATION ANUAL