Icom IC-775DSP Instruction Manual page 34

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4 FUNCTION OPERATIONS
W Auto notch function
The auto notch function automatically attenuates
beat tones, tuning signals, etc. more than 3 tones
even if they are moving. This function is available
for the DSP-equipped type only.
The function can be used together with the manual
notch filter (IF-type) and also acts in FM mode.
@ Select SSB or FM mode.
CG) Push [AUTO] to turn the auto notch function ON.
- The [AUTO] switch activates the auto APF in CW
mode. (p. 30)
@) Push [AUTO] again to cancel the function.
Mi Noise reduction
The noise reduction function reduces noise compo-
nents and picks up the desired signals which are
buried in noise. The received AF signals are
converted to digital signals and separated into
signals and noise. This function is available for the
DSP-equipped type only.
The [NR LEVEL] control adjusts the noise reduction
level. Deep rotation results in audio signal masking
or distortion. Set [NR LEVEL] for maximum read-
ability. The noise reduction function is not available
in AM mode.
š " appear when noise reduction is in use.
E cw pitch control P-setmode
The received CW audio pitch and monitored CW
audio pitch can be adjusted to a comfortable fre-
quency (300 to 900 Hz) without changing the oper-
ating frequency.
% The [SQL] control functions as a CW pitch control
through setting in P-set mode. (p. 43) When
selecting the CW pitch control, squelch does not
function and stays open.
WW
Auto notch OFF Auto notch ON
Desired ` `
signal (AF)
Desired
signal (AF)
Unwanted tone
frequency
Particular frequency
is attenuated.
For the IC-775, [AF LPF] functions as the auto
notch switch in SSB mode when an optional
UI-100 is installed and activated.
Noise reduction activated
NR LEVEL-©- SQL
>
. Desired
signal (CW)
NOTE: Rotate [NR LEVEL] max. counter-
clockwise to turn the function OFF. The [NB
WIDE] switch can be changed to noise reduction
on/off switch in P-set mode. (p. 43)
Noise reduction OFF
NR LEVEL- SQL
Noise Ge ,
Geer
@ Push [CW/REv] to select CW mode.
@ Push [SET] momentarily to enter P-set mode.
© Push [A UP]/[V DOWN] several times to select
"PItCH" display.
- When a sub setting display is selected, push [ENT]
to exit.
@® Connect a key and key down. l
©) Rotate [MONI GAIN] to set the desired side tone
level.
© Adjust the main dial for the desired frequency.
@ Push [ENT] to exit P-set mode.