Notch Filter; D Selecting The Notch Filter Type; D Setting The Manual Notch Filter; D Using The Filter Effect Screen - Icom IC-7760 Basic Manual

4
RECEIVING AND TRANSMITTING

Notch Filter

The IC-7760 has Auto Notch and Manual Notch
functions.
Auto Notch automatically attenuates beat tones,
tuning signals, and so on. It can be used in the SSB,
AM, and FM modes.
Manual Notch attenuates beat tones, tuning signals,
and so on by manually adjusting the filtering
frequency. It can be used in the SSB, CW, RTTY,
PSK, and AM modes.

D Selecting the Notch filter type

z Push .
NOTCH
NOTCH
• The Notch Filter indicator on
L Pushing changes between "AN (Auto Notch),"
NOTCH
"MN (Manual Notch)," and OFF.
L You can also select the Notch filter type on the
FUNCTION screen.

D Setting the Manual Notch filter

When Manual Notch is selected, adjust the filtered
frequency.
1. Hold down for 1 second.
NOTCH
• Opens the NOTCH menu.
• The Manual Notch is automatically selected, and
"MN" is displayed.
2. Touch [WIDTH] several times to set the Manual
Notch filter width to "WIDE," "MID," or "NAR."
3. Rotate slowly, to manually attenuate the
MULTI
frequency.
4. To close the NOTCH menu, push
NOTE: While adjusting, noise may be heard. This
comes from the FPGA and does not indicate an
equipment malfunction.
NOTCH lights.
Displayed when Auto
Notch is selected.
.
MULTI
4-6

D Using the Filter Effect screen

When Manual Notch is selected, you can visually
check that the Notch function removes the set
frequency and filter width from the signal.
When the Notch function is OFF
When the Notch function is ON
While adjusting the filtered frequency
L When the marker moves outside the upper or lower Edge
frequency, "<<" or ">>" is displayed in the upper side
corners of the Filter Effect screen.
<<: The marker is outside the lower edge.
>>: The marker is outside the higher edge.
TIP: Touching the Sub screen displays the function
keys.
Passband
Filter width icon and
marker (gray)
M: MID
N: NAR
W: WIDE
Filter width icon and
marker (orange)
• Touching [MN] changes
between "MN (Manual
Notch)" and OFF.
• Touching [MN] for 1 second
opens the NOTCH menu.