Icom IC-R2500 Instruction Manual page 65

D D Squelch delay
Selects squelch delay to short or long to prevent repeated
opening and closing of the squelch during reception of the
same signal.
• S : Short squelch delay.
• L : Long squelch delay.
Short setting
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 their frequency varies. The ANF
function can be used in SSB, AM, FM and WFM modes.
☞This item appears when optional UT-106 is installed.
Long setting
D D NR setting
Selects NR (Noise Reduction) level from 1 to 15 and OFF
(default).
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 Optional (digital) items indication
Turns expanded set mode for digital operation ON and OFF.
☞This item appears when optional UT-118 or UT-122 is
installed.
• OF : Digital items are not displayed in set mode.
(default)
• On : Digital items are displayed in set mode.
10
SET MODE
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