5
FUNCTIONS FOR RECEIVE
5-11
D
Manual Notch function
(Mode = Manual notch: SSB/CW/RTTY/AM)
The Manual Notch function allows you to manually at-
tenuate a frequency via the “NOTCH control.”
Push
q
NOTCH
(
C
) once or twice to turn ON the Man-
ual Notch function.
• “MN” appears.
Hold down
w
NOTCH
(
C
) for 1 second to display the
“NOTCH” screen.
• Touch [WIDTH](
D
) to select the Manual Notch filter width,
“WIDE,” “MID” or “NAR.”
Rotate the Dial
e
to adjust the Notch filter frequency
.
• Since the Notch filter has the very sharp characteristic,
when adjusting a filter, slowly rotate the Dial.
• If desired, push
NOTCH
(
C
) to exit the “NOTCH”
screen.
Mode
Center frequency
SSB
RTTY
–1040 Hz to +4040 Hz
CW
CW pitch frequency –2540Hz to
CW pitch frequency +2540Hz
AM
–5060 Hz to +5100 Hz
Notch function (Continued)
While tuning the manual notch filter, noise may be
heard. This comes from the DSP unit and does not
indicate an equipment malfunction.
Manual Notch is OFF
Manual Notch is ON
Desired
signal (AF)
Desired
signal (AF)
Unwanted interference
Interference frequency
is attenuated
NOTCH
L
eft
R
ight
C
enter
D
isplay
The
L
,
R
,
C
or
D
in the
instructions indicate the
part of the controller.
L
: Left side
R
: Right side
C
: Center bottom
D
: Display (Touch screen)
Manual Notch filter width
Manual Notch icon
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