Yaesu Musen Co. Ltd. 20251X50 사용자 설명서
FT-2000
Operating Manual
Vertex Standard Co., Ltd.
81
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. 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, the Spot tone is turned off.
Advice:
your transmitted signal.
Using the SPOT System
While pressing the front panel’s [SPOT] button, 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.
Release the [SPOT] button, the Spot tone is turned 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 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.
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 utilized for CW frequency
adjustment, as well. Its configuration is set via Menu item “010 diSP BAR SEL” at
the factory, the Tuning Offset Indicator is already set up for the “CW TUNE”
selection.
the factory, the Tuning Offset Indicator is already set up for the “CW TUNE”
selection.
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
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.
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
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
with a 700 Hz offset, the “zero beat” frequency of that CW carrier would be