CW CONVENIENCE FEATURES

CW SPOTTING (ZERO-BEATING)

“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.

For everyday operation, the (CW) [PITCH] knob allows 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 Tuning Offset Indicator in the display may also be moved so you can adjust your receiver frequency to center the incoming station on the pitch corresponding to that of your transmitted signal.

Using the SPOT System

While pressing the front panel’s [SPOT] button, the Spot tone will be heard and the Sub (VFO-B) frequency display will show the Spot tone frequency. 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.

Release the [SPOT] button to turn the Spot tone off.

ADVICE:

￿In a tough DX pile-up, you may actually want to use the SPOT system to find a “gap” in the spread of call- ing 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 Tuning Offset Indicator in the display may be uti- lized for CW frequency adjustment, as well. Its con- figuration is set via Menu item “010 diSP BAR SEL” at the factory, and the Tuning Offset Indicator is al- ready set to the “CW TUNE” selection.

Retune: Shift to Lower Frequency￿

Zero-In

Retune: Shift to Higher Frequency￿

￿: When the CW reversefeature is activated, the indicator of the Tuning Offset Indicator will also be reversed.

[PITCH] Knob

Tuning Offset Indicator

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

[SPOT] Button

QUICK POINTS:

￿The CW Spotting process utilizes the Spot tone or the Tuning Offset Indicator, with the actual offset pitch being set by the [PITCH] knob 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 [SPOT] button) or align the receiver frequency so that the central red LED on the Tuning Offset Indicator lights up. Note that there are 21 “dots” on the Tuning Offset Indicator, and de- pending on the resolution selected, the incoming CW signal may fall outside the visible range of the bar in- dicator, 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-2000displays, by default. However, you can change the display to be identical to what you would see on SSB by using Menu item “061 A1A FRQDISP” and setting it to “dIr” instead of its default “OFSt” setting.

FT-2000 OPERATING MANUAL

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