D Apf (Audio Peak Filter) Operation - Icom IC-7600 Instruction Manual

4
RECEIVE AND TRANSMIT

D APF (Audio Peak Filter) operation

The APF changes the audio frequency response by
boosting a particular frequency to enhance a desired
CW signal.
q During CW mode, push [APF/TPF] to turn the
audio peak filter ON and OFF.
• " " appears in the display and the indicator on this
switch lights green when the audio peak filter is ON.
w Push and hold [APF/TPF] for 1 sec. several times
to select the desired audio filter width.
• WIDE, MID and NAR filters, or 320, 160 and 80 Hz fil-
ters are available depending on [APF type] item setting
in other set mode. (p. 133)
The APF (Audio Peak Filter) type is also selectable
from "SOFT" and "SHARP" in [APF type] item in oth-
ers set mode (p. 133).
39
APF/TPF