Noise Reduction; D Adjusting The Noise Reduction Level; Notch Filter; D Auto Notch Function - Icom IC-7300 Basic Manual

4
RECEIVING AND TRANSMITTING
NoiseReduction
The Noise Reduction function reduces random noise
components and enhances desired signals that are
buried in noise. The Noise Reduction function uses
the DSP circuit.
Push to turn the Noise Reduction function ON or
NR
OFF.
D AdjustingtheNoiseReductionlevel
Adjust the Noise Reduction level to where noise is
reduced and the received signal is not distorted.
1. Hold down for 1 second.
NR
• Turns ON the Noise Reduction function and opens the
NR menu.
2. Adjust the Noise Reduction level to between 0
and 15.
L Adjust to a higher level to increase the reduction
level, and a lower level to decrease it.
NoiseReductionOFF
NRlevel0
Noise components
Displayed
Rotate
Push
NoiseReductionON
NRlevel4
Desired signal (CW)
4-6

Notch Filter

The IC-7300 has Auto Notch and Manual Notch
functions.
AutoNotch:  U sedintheSSB,AMandFMmodes.
ManualNotch: U sedintheSSB,CW,RTTYandAM
modes.

D Auto Notch function

Auto Notch automatically attenuates beat tones,
tuning signals and so on.
Push until "AN (Auto Notch)" is displayed.
NOTCH
L Pushing changes between "AN (Auto Notch),"
NOTCH
"MN (Manual Notch)" and OFF.

D Manual Notch function

The Manual Notch attenuates beat tones, tuning
signals and so on by adjusting a frequency in the
NOTCH menu.
1. Hold down
NOTCH
NOTCH menu.
• The Manual Notch is automatically selected and "MN"
is displayed.
L Pushing [WIDTH] sets the Manual Notch filter width
to "WIDE," "MID" or "NAR."
2. Slowly adjust the POSITION to manually
attenuate the frequency.
NOTE: While adjusting, noise may be heard.
This comes from the DSP unit and does not indicate
an equipment malfunction.
Displayed
for 1 second to display the
Rotate
Push