AOR AR8000 Operating Manual page 18

should a permanently busy channel be encountered. The UP and DOWN keys
may be used to force the receiver to continue searching from a busy channel
and to reverse the direction of search.
While in search or scan modes and stopped on an interesting busy channel,
press [FUNC] [2VFO] to transfer the busy channel to the "active" VFO and
revert to VFO mode.
To return to 2VFO mode, press the [2VFO] key.
Should you prefer only a single frequency to be displayed press [SRCH]
[SRCH] while searching or press [SRCH] [ENT] if stopped on a busy
frequency..
[UP>] - UP / move key
This key is used to force the receiver to continue search / scan from a busy
channel and to reverse the direction of search / scan should the receiver be
tracking downward. The key will also act as an upward tuning control just like
DIAL.
The key is used to select menu options under certain circumstances.
The key may also be used to backspace delete incorrect frequency entry
during the input sequence via the numeric keypad. It may also be using in
conjunction with the [FUNC] key to edit the active VFO frequency.
[DOWN<] - DOWN / move key
This key is used to force the receiver to continue search / scan from a busy
channel and to reverse the direction of search / scan should the receiver be
tracking upward. The key will also act as a downward tuning control just like
DIAL.
The key is used to select menu options under certain circumstances.
The key may also be used in conjunction with the [FUNC] key to edit the active
VFO frequency.
[1] [A] [ATT] Numeric 1 / Bank A / ATTENUATOR key
This key acts as a numeric 1 when entering frequencies via the keypad.
In search, scan and memory modes this key is used to identify bank A/a.
If the sequence [FUNC] [1] is keyed, the attenuator is toggled On/Off. The
ATTENUATOR is a useful feature to aid with the reduction of interference
caused by the presence of strong signals.