Changing The Passband Characteristics Of The Audio Peak Filter (Apf); Shifting The Pass Band Of The Audio Peak Filter - Kenwood TS-990S Instruction Manual

6 REJECTING INTERFERENCE
CHANGING THE PASSBAND
CHARACTERISTICS OF THE AUDIO PEAK
FILTER (APF)
You can select the passband width of the audio peak filter
from three types, Narrow (80 Hz), Middle (160 Hz), and
Wide (320 Hz).
[ESC] [CW/CW-R]
[F1] [F7]
1 Press [CW/CW-R] to select CW mode.
2 Press and hold [APF/SEL] (M) or [APF/SEL] (S) to
open the APF screen for the selected band.
3 Press [ ] (F2) or [
pass band width.
• You can select "Nar (80 Hz)", "Mid (160 Hz)", or "Wide (320
Hz)" from available range.
• The default is "Mid (160 Hz)"
4 Press [ESC] to exit.
Pressing and holding [APF/SEL] (M) or [APF/SEL] (S)
closes the APF screen.
6-8
[APF/SEL] (M) [APF/SEL] (S)
] (F3) to select the
SHIFTING THE PASS BAND OF THE AUDIO
PEAK FILTER
You can avoid interference from adjacent frequencies by
shifting the passband of the audio peak filter.
The amount of shift for the bassband width is ±200 Hz
from the CW pitch frequency.
[ESC] [CW/CW-R]
[F1] [F7]
1 Press [CW/CW-R] to select CW mode.
2 Press and hold [APF/SEL] (M) or [APF/SEL] (S) to
open the APF screen for the selected band.
3 Press [ ] (F4) or [
MULTI/CH control to shift the pass band width.
• The passband width of the selected audio peak filter is
shifted above or below the CW pitch frequency.
• The default is "0" (zero shift from the pitch frequency).
4 Press [ESC] to exit.
Pressing and holding [APF/SEL] (M) or [APF/SEL] (S)
closes the APF screen.
[MULTI/CH]
[APF/SEL] (M) [APF/SEL] (S)
] (F5), or rotate the
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