Afc - Automatic Frequency Control - AOR AR8600 Operating Manual

The noise limiter has two settings, on and off. When the noise
limiter is ON, the legend "NL" appears on LCD.
To toggle the noise limiter on/off
The legend "NL" confirms selection and the noise limiter
will be active in AM and SSB modes. To toggle on/off again just
repeat the sequence
legend "NL" is extinguished when the noise limiter is OFF.
The selection of noise limiter is held separately in each VFO, each memory channel and may also be
toggled during search (in scan mode, the scanning process must be stopped in order to see which
memory channel you are applying the noise limiter to!).

3-13 AFC - Automatic Frequency Control

The AR8600 is equipped with AFC, this is useful when tracking unusual band plans or when the exact
frequency is unknown... it ensures that the AR8600 is tuned to 'centre frequency' for best reception.
AFC is operational only in NFM, SFM, WAM, AM, NAM ... AFC is not operational in WFM, USB,
LSB, CW. If AFC has been activated and you select a mode not supported by AFC, the "AFC" legend
will be extinguished from the LCD. Once AFC has been activated (say when you are monitoring NFM),
it will temporarily be deactivated should you select WFM, USB, LSB, CW but will automatically be
reactivated when NFM or other supported modes are again selected.
VALID = NFM, SFM, WAM, AM, NAM
INVALID = WFM, USB, LSB, CW
AFC has two settings, on and off. When AFC is ON, the legend
"AFC" appears on LCD during reception using a supported receive
mode.
Note: Attempted operation while using an unsupported
receive mode will result in the input being ignored, however the
on/off toggle status will be incremented and implemented once
a supported receive mode is selected (i.e. you can always
toggle the AFC status on/off regardless of displayed mode).
To toggle AFC on/off
supported receive mode is in use. To toggle on/off again just repeat the sequence
, the legend "AFC" is extinguished when AFC is OFF and using a supported receive
mode.
The selection of AFC is held separately in each VFO, each memory channel and may also be toggled
during search (in scan mode, the scanning process must be stopped in order to see which memory
channel you are applying the AFC to!).
AFC characteristics
When the AFC is active while monitoring a transmission using a supported receive mode, AFC will
attempt to automatically 'pull' the AR8600 onto centre frequency for best reception.
, the
, the legend "AFC" confirms selection when a