Cw Convenience Features; Cw Spotting (Zero-Beating) - Yaesu FTDX9000D - DATA MANAGEMENT Operation Manual

CW C
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 in-
coming station on the pitch corresponding to that of your
transmitted signal.
Using the SPOT System
Press the [ MONI ] key to activate the monitor function,
then press and hold in the front panel's [ BK-IN/SPOT ]
key, the Spot tone will be heard. This tone corresponds to
the pitch of your transmitted signal, and if you adjust the
receiver frequency to match the pitch of the received CW
signal to that of the Spot tone, your transmitted 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 bar 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 058 CW FREQ DISPLAY" and setting it to "FREQ" instead of its default "PITCH" setting.
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F
EATURES
CW S
POTTING
[ BK-IN/SPOT ] switch
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ERO EATING
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 station. From the DX side, if a dozen
or more operators (also using Yaesu's SPOT
system) all call precisely on the same frequency,
their dots and dashes merge into a single, long
tone that the DX station cannot decipher. In
such situations, calling slightly higher or lower
may get your call through.
The bar indicator on the front panel may be
utilized for CW frequency adjustment, as well.
Its configuration is set via Menu item "DIS-
PLAY 016 BAR DISPLAY SELECT;" at the
factory, the bar indicator is already set up for
the "CW TUNE" selection.
Retune (Shift to Higher Frequency)
Zero-In
Retune (Shift to Lower Frequency)
: When the CW reverse feature is activated,
the indication of the Tuning Offset Indicator is oppositely
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FT 9000D O
DX
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9000D displays, by default.
M
PERATION ANUAL