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Page 73
FT-991 OperaTing Manual
Split operAtion uSing the tx clAriFier
For split TX/RX operation in “casual” pile-ups, where the split is less than 10 kHz, the TX Clarier (Offset Tuning) fea-
ture may be utilized.
1. Press the
MENU(SETUP)
button to enter the Menu
mode.
2. Rotate the
MULTI
knob to select Menu item “
040
CLAR MODE SELECT
”.
3. Touch
[
SELECT
] on the LCD, then rotate the
MULTI
knob to set this Menu item to “
TX
” (the de-
fault setting is “
RX
”).
CLAR/VFO-B Knob
CLAR Button
MULTI Knob
MENU(SETUP) Button
F$QEV
%.#4 /1&' '56.'%
#/ .% 6715. 2'
4:

#/ .% 67'(4 3 1((

4. Touch
[
ENTER
]
on the LCD to save the new set-
ting.
%.#4 /1&' '56.'% 6:
F$QEV#/ .% 6715. 2'
#/ .% 67'(4 3 1((

5. Press the
MENU(SETUP)
button or touch
[
BACK
]
on the LCD to exit to normal operation.
6. Press the
CLAR
button. The “
TX
” icon will appear
in the TFT display.
quick point:
The Clarifier is frequently used for receiver offset
tuning. However, for DX pile-ups where the DX
station is using a split of less than 10 kHz, the TX
Clarier function is usually the quickest way to set
the transmitter to the desired offset frequency.
7. Rotate the
CLAR/VFO-B
knob to set the desired
transmitter offset. A maximum split of ±9.999 kHz
may be set.
8. To exit from TX Clarier operation, press the
CLAR
button once more. The
TX
icon will disappear
from the display.
Advice:
When listening to a “pile-up” calling a DX station, in
order to nd the station currently being worked, you
may press the
CLAR
button. Then, use the
CLAR/
VFO-B
knob to zero in on the station calling the DX
(use the SPOT function on CW for precise alignment
of your frequency). You may then press the
CLAR
button again to cancel the RX Clarier, and return to
reception on the DX station’s frequency.
Just as with receiver Clarier operation, the amount
of offset from the original VFO frequency will ap-
pear in the display.
As with receiver Clarier operation, when you turn
the TX Clarier off, the last-used offset is remem-
bered, and will be available if you turn the TX Clari-
er back on. To clear the Clarier offset, press and
hold the
CLAR
button for more than 1 second.
quick point:
When attempting to work a DX station on CW in a split
frequency pile-up, remember that a large number of oth-
er stations may also be using Yaesu transceivers with ca-
pability similar to that of your
FT-991
. On the DX side
of the pile-up, everyone calling precisely on the same
CW frequency will sound like a single tone! So you may
have more success if you use the RX Clarier to nd a
hole in the pile-up, instead of trying to zero-beat the last
station worked by the DX station.
transMitter convenience features
75


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