Yaesu FT-920 Operating Manual page 25

(24) NB L Control
EVEL
This control adjusts the blanking level for the IF Noise
Blanker. Clockwise rotation increases the degree of
blanking.
(25) NB Switch
Pressing this switch activates the IF Noise Blanker.
When the Noise Blanker is activated, the 'NB" indi-
cator will appear in the display panel. Press this switch
again to switch the Noise Blanker off.
? The IF Noise Blanker may be used or alone or in
conjunction with the DSP Noise Reduction fea-
ture.
(26) RX - (VFO-A) Indicator/Switch
This combination LED/Switch indicates the operat-
ing status of VFO-A in the receive mode. The LED
appears green when the receiver is set up for the
use of VFO-A.
This LED is also a switch; when the receiver is using
VFO-A, pressing the green LED will cause the re-
ceiver to be muted (the LED will now blink). Press
the LED again to cancel the mute function.
(27) TX - (VFO-A) Indicator/Switch
This combination LED/Switch indicates whether or
not VFO-A is being used to determine the transmit
frequency. The LED appears orange when the trans-
mitter is being controlled by VFO-A (this is the typical
situation for transceive operation using VFO-A).
When the corresponding LED near the tuning dial for
VFO-B is pushed, the VFO-A [TX] LED will go out,
showing that VFO-A has relinquished transmit fre-
quency control. Pushing the VFO-A [TX] LED again
will restore transmit frequency control to VFO-A.
FT-920 Operating Manual
If this LED is pushed while it is already illuminated,
the FT-920 will be placed in the (reduced-power:
Approx. 10 W) "TX M " mode. In this mode, the
UTE
Orange LED will blink .
(28) VFO-A Tuning Dial
This large knob is the main tuning dial for the trans-
ceiver, controlling the frequency of the (main) VFO-
A. Clockwise rotation of the knob increases the fre-
quency, while counter-clockwise rotation decreases
the frequency. The tuning steps of the rotary encoder
coupled to the VFO-A Tuning Dial are shown below.
Operating
Mode
No rm al
10Hz
SSB , CW, D ATA(SS B)
AM, F M, D ATA(FM) 100Hz
(29) S Switch
TEP
Use the [S ] switch to enable fine or coarse tuning
TEP
when using the VFO-A or VFO-B tuning dials, as well
s] or [Downt] switches. The [step] switch
as the [U
P
toggles the tuning steps through the following se-
quence:
Fast Õ Fine Õ Normal Õ Fast Õ . . .
The current setting will be indicated on the display
panel.
(30) Shuttle Jog Control
The outer, concentric "Shuttle Jog" control behind the
VFO-A Tuning Dial allows fine or rapid frequency ex-
cursions with just a slight turn of your hand. Rotating
the Jog ring slightly to the left or right initiates slow
tuning in a downward or upward direction, respec-
tively. The more you rotate the spring-loaded Jog dial,
the faster the VFO will tune. The tuning rate of the
Shuttle Jog may be programmed via the Menu sys-
tem.
STEP
Fast Fine
100Hz 1Hz
1k Hz 10Hz
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