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Yaesu FT-991 Manual

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Page 31FT-991 OperaTing Manual
6. Pressthe
MODE
buttontodisplaytheavailablese-
lections.
Touch the corresponding key to select the desired
operating mode.
Advice:
ByconventionintheAmateurbands,LSBis
usedonthe7MHzandlowerbands(withthe
exceptionof60meters),whileUSBisutilizedon
the14MHzandhigherbands.
When changing modes from SSB to CW, you
will observeafrequencyshiftonthedisplay.
ThisshiftrepresentstheBFOoffsetbetweenthe
“zerobeat”frequencyandtheaudibleCWpitch
(tone) you can hear (the pitch is programmed via
the Menu item “
059 CW FREQ DISPLAY
”),even
though the actual tone that you hear is not chang-
ing.
To eliminate noise while the transceiver is not re-
ceiving any signal, press the
F(M-LIST)
button,
then touch [
SQL
] onthe LCD. “
SQL
” willap-
pearontheLCDandthe
MULTI
knobwillfunc-
tionasthesquelchknob.Rotatethe
MULTI
knob
toadjustthesquelchuntilthenoisedisappears.
1. Turn on the external DC power supply.
2. Press and hold in the front-panel
ON/OFF
switch
until the transceiver turns on.
3. Thetransceiverwillstartupon7.000.00MHzLSB,
(orthepreviouslyusedoperatingfrequency)and
normaloperationmaybegin.
note:
To turn power off, press and hold in the front panel
ON/OFF
switch for one second.
4. Rotatethe
AF GAIN
knobto setacomfortableau-
dio level of the incoming signals or noise. Clockwise
rotation of the
AF GAIN
knobincreasesthevolume
level.
note:
Whenusingheadphones,startbyrotatingthe
AF
GAIN
knobcounter-clockwise,then bringthe vol-
ume level up after you put the headphones on. This
will minimize the chance of damage to your hearing
causedbyanunexpectedlyhighaudiolevel.
5. Press the
BAND
buttontodisplaythelistofAmateur
bands onthe LCD, thentouch akeycorresponding
tothebandonwhichyouwishtobeginoperation.
Advice:
One-touchselectionofeachAmateurband be-
tween1.8and50MHz,144MHz,and430MHz
is provided.
The
FT-991
utilizesatripleband-stackVFO
selectiontechnique, whichpermits storing upto
threefavorite frequenciesand modesontoeach
VFOband register. Forexample, youmay store
onefrequencyeachon14MHzCW,RTTY,and
USB,thenrecallthesefrequenciesbysuccessive,
momentary touches of the
[
14
]
on the screen
displayedbypressingthe
BAND
button.Each
Amateurbandkeymaysimilarlyhaveuptothree
frequency/modesettingsapplied.
Here is the typical start-up procedure for normal operation:
ON/OFF Switch
AF GAIN KnobMain Tuning Dial Knob
BAND Button
basic operation:
receivinG on aMateur banDs
MODE Button
… 33 …


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