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5-6
5
RECEIVE AND TRANSMIT
• Filter screen
CW PITCH display (Example: 700 Hz)
[CW PITCH]
Operating CW (Continued)
■
D
About the CW pitch control
The received CW audio pitch and CW side tone can be
adjusted to suit your preference. This does not change
the operating frequency.
Rotate [CW PITCH] to suit your preference.
q
• Adjustable between 300 to 900 Hz in 5 Hz steps.
Hold down [FILTER] for 1 second.
w
• The Filter screen is displayed.
• The Filter screen graphically displays the CW pitch.
(Shown to the right.)
Digital IF filter
Filter screen
Passband
width
Below 500 Hz
The CW pitch frequency is
changed in 5 Hz steps.
• “
BPF
” is displayed.
Above 600 Hz
The CW pitch frequency is
changed in 25 Hz steps.
• “
BPF
” disappears.
Push [EXIT/SET].
e
• Exits the Set screen.
D
APF (Audio Peak Filter) operation
The APF changes the audio frequency response by
boosting a particular frequency to enhance a desired
CW signal.
In the CW mode, push [APF/TPF] to turn the audio
q
peak filter ON or OFF.
• “ APF” is displayed and the [APF/TPF] indicator
above this key lights white.
Hold down [APF/TPF] for 1 second.
w
• Hold down [APF/TPF] for 1 second selects the Audio
filter width.
APF type*
Filter width
SOFT
WIDE, MID, NAR
SHARP
320 Hz, 160 Hz, 80 Hz
* The audio filter shape is also selectable between
“SOFT” and “SHARP” in the “APF TYPE” item of the
Others set screen.
(p. 15-14)
(SET [F-7] > OTHERS [F-5] > APF TYPE)
Rotate the [DIGI-SEL] control to suit your prefer-
e
ence.
• The peak frequency can be adjusted with the [DIGI-SEL]
control when “APF” is selected in the “DIGI-SEL VR Op
-
eration” item of the Others set screen
(p. 15-15)
.
(SET [F-7] > OTHERS [F-5] > DIGI-SEL VR Operation)
The APF audio level can be adjusted in the Level set
screen
(p. 15-5)
.
(SET [F-7] > LEVEL [F-1] > APF AF LEVEL)
[DIGI-SEL] MAIN, SUB
APF/TPF indicator MAIN, SUB
[APF/TPF] MAIN, SUB