Rf Gain Knob - Yaesu FT-991 Operating Manual

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ronT
Main Tuning Dial Knob
This large knob adjusts the operating frequency of
VFO-A. Clockwise rotation of this knob increases
the frequency. Default tuning increments are 10 Hz
(CW, SSB), 50 Hz (RTTY/DATA), 100 Hz (AM/
FM). When the FAST button is pressed, the tuning
steps increases. The available steps are:
o M 1 S
perAting ode
10 Hz ( 100 Hz )
LSB/USB/CW
100 Hz ( 1 kHz )
AM/FM
RTTY/DATA 5 Hz ( 100 Hz )
Numbers in parentheses indicate steps when the FAST button is On.
F T-991 O
peraTing
p
anel
1 d r
tep iAl otAtion
10 kHz ( 100 kHz )
100 kHz ( 1 MHz )
5 kHz (100 kHz)
M
anual
C
onTrols
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CLAR/VFO-B Knob
During the VFO-A operation, this knob tunes the
Clarifier offset frequency up to ±9.999 kHz.
During Split operation, this knob adjusts the operat-
ing frequency of VFO-B.

RF GAIN Knob

The RF GAIN knob is the receiver RF gain control,
which adjusts the gain of the receiver RF and IF
amplifier stages. This control is normally left in the
fully clockwise position.
AF GAIN Knob
The AF GAIN knob sets the receiver audio volume
level. Typically, you will operate with this control set
between the 9 o'clock and 10 o'clock positions.
& s
wiTChes
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