Noise Reduction; Auto Notch (Anf) Function; Dial Lock Function - Icom IC-746 Instruction Manual

5
FUNCTIONS FOR RECEIVE

5-7 Noise reduction

[NR]
[NR]
5-8 Auto notch (ANF)
function
[APF/ANF]

5-9 Dial lock function

Lights when the dial lock function is ON
40
The noise reduction function reduces noise compo-
DSP
nents and picks out desired signals which are buried
in noise. The received AF signals are converted to dig-
ital signals and then the desired signals are separated
from the noise.
Push [NR] to toggle noise reduction ON and OFF.
• "NR" appears when noise reduction is ON.
Rotate the [NR] control to obtain the desired level of
noise reduction.
• Clockwise rotation increases the level of noise reduction;
counterclockwise rotation decreases the level of noise re-
duction.
The auto notch function automatically attenuates more
DSP
than 3 beat tones, tuning signals, etc., even if they are
moving. This function is only available in SSB, AM and
FM modes.
Push a mode key to select SSB, AM or FM mode.
Push [APF/ANF] to toggle the auto notch filter ON
and OFF.
• "ANF" appears when the function is ON.
The dial lock function prevents accidental frequency
changes caused by inadvertently rotating the tuning
dial. This function electronically locks the tuning dial.
Push [LOCK] to toggle the dial lock function ON and
OFF.
• When the dial lock function is turned ON, the [LOCK] in-
dicator lights red.
[LOCK]