Nb Function; Agc Function - Icom IC-R2500 Instruction Manual

■ NB function

The NB (noise blanker) function removes pulse-type noise
when SSB, CW or AM mode is selected.
➥ After pushing [MAIN] to select the desired band (left or
right) as the main band, push and hold [MAIN•NB] for 1
sec. to toggle the NB function ON and OFF.
• "nb-On" or "nb-OF" appears for a moment when the NB function
is turned ON or OFF, respectively.

■ AGC function

The AGC (Automatic Gain Control) function controls receiver
gain to produce a constant audio output level even when the
received signal strength varies from fading, etc. A slow-re-
sponse AGC function is selectable for SSB, CW or AM mode.
➥ After pushing [MAIN] to select the desired band (left or
[MAIN•NB]
BASIC OPERATION
right) as the main band, push and hold [MAIN•AGC] for 1
sec. to toggle the AGC function Slow and Fast.
• "AGC-S" or "AGC-F" appears for a moment when the AGC func-
tion is selected Slow or Fast, respectively.
[MAIN•AGC]
While in FM or WFM mode, the AGC function is fixed as
Fast and AGC Slow cannot be selected.
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