Notch Function; Auto Notch Function; Manual Notch Function - Icom iC-7850 Instruction Manual

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■ Notch function

The IC-7850 has Auto and Manual notch functions.
• Auto notch:
• Manual notch: Used in the SSB, CW, RTTY, PSK, or
D Auto notch function
The Auto notch function uses DSP to automatically at-
tenuates beat tones, tuning signals, and so on, even if
they are moving.
Push [NOTCH] several times to select "AN."
• Pushing [NOTCH] toggles the Notch function "AN" (Auto
notch), "MN" (Manual notch), and OFF.
• "AN" appears when Auto notch is in use.
D Manual notch function
The Manual notch can be set to attenuate a frequency
by rotating the [NOTCH] control.
Push [NOTCH] several times to select "MN."
q
• Pushing [NOTCH] toggles the Notch function "AN" (Auto
notch), "MN" (Manual notch), and OFF.
• "MN" appears when manual notch is in use.
• Hold down [NOTCH] for 1 second to toggle the manual
notch filter width between "WIDE," "MID," and "NAR." Af-
ter selecting, the filter width value is displayed for about
1 second.
Rotate the [NOTCH] control to manually attenuate
w
a frequency.
While tuning the manual notch, noise may be heard.
This comes from the DSP unit and does not indi-
cate an equipment malfunction.
Used in the SSB, AM, or FM mode
AM mode
FUNCTIONS FOR RECEIVE
[NOTCH] indicator
• The Auto notch indication
• The Manual notch indication
• When selecting the manual notch filter width
7-13
7
[NOTCH] control MAIN, SUB
[NOTCH] MAIN, SUB

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