Icom IC-R1500 Instruction Manual page 39

Communications
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D D Squelch delay
Selects squelch delay from short and long to prevent re-
peated opening and closing of the squelch during reception
of the same signal.
• S
: Short squelch delay.
• L
: Long squelch delay.
D D ANF setting
Turns ANF (Automatic Notch Filter) function ON and OFF.
The ANF function automatically attenuates up to 3 beat tones,
tuning signals, etc. even if they are moving. The ANF func-
tion can be used in USB, LSB, AM, FM and WFM modes.
This item appears when optional UT-106 is installed.
D D NR setting
Selects NR (Noise Reduction) level from 1 to 15 and OFF.
The NR function enhances desired signals in the presence of
noise by using the DSP circuit. The amount of enhancement
is adjustable.
The NR level can result in audio signal masking. Set the
noise reduction level for maximum readability.
This item appears when optional UT-106 is installed.
D D Key-touch beep
The key-touch beep can be turned OFF for silent operation.
8
SET MODE
1
2
3
4
5
6
7
8
9
10
11
(default: ON)
12
13
14
15
16
34

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