Icom IC-910H - AGC Time Constant; AFC Function; FM Center Indicator

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RECEIVE AND TRANSMIT
n AGC time constant
The AGC (Automatic Gain Control) controls receiver
gain to produce a constant output level even when the
received signal strength is varied by fading, etc. Use
AGC slow for normal phone operation; AGC fast for re-
ceiving data and searching for signals.
➥ Push [AGC] to switch the time constant between
fast and slow.
 •“FAGC”indicatorappearswhenAGCfastisselected.
 •TheAGCtimeconstantisxedinFMmoderegardless
of the FAGC indicator.
The SUB band’s AGC is automatically selected as
slow in SSB and fast in CW. AGC time constant cannot
be changed in FM mode.
n AFC function
The AFC (Automatic Frequency Control) automatically
tunes the operating frequency when receiving an off-
frequency signal or receiving signal shifts in FM or FM
narrow mode.
➥ Push [AFC/NB] to turn the AFC function ON and
OFF.
 •“AFC”indicatorappearswhentheAFCfunctionisacti-
vated.
When strong nearby signals are available, the AFC
function may tune to those signals.
n FM center indicator
The MAIN/SUB band indicators indicate the received
signal deviation in FM mode. When an off-center sig-
nalisreceived,theindicatorashes.
When an off-center signal is received, rotate the tun-
ing dial or use the RIT function to illuminate the indica-
tor continuously.
The FM center indicator can be turned OFF using the
FM set mode. (p. 61)
[AGC]
C W
VFO A
F AGC
[AFC/NB]
F M
VFO A
AFC
Flashes in 300 msec. intervals.