Activating & Deactivating Priority; Programming Priority Sampling Interval - AOR AR2700 Operating Manual

For example, to set the frequency 145.500 MHz as the priority channel:
First ensure that the receiver is in manual
mode by checking that the legend
"MANUAL" is displayed on the LCD or by
pressing [MANU].
Enter the required frequency [1] [4] [5]
[MHz] [5] [ENT].
Transfer the displayed data to the priority
channel using the key sequence [2ndF]
[PRIO].
8-2 Activating & deactivating priority
To toggle the priority watch On and Off
press [PRIO], a "PRIO" legend appears on
the LCD to confirm that priority is active
and the priority frequency will be
periodically checked for activity regardless
of whether the receiver is in MANUAL,
SCAN or SEARCH mode. The priority
channel will be checked for activity even if
the current frequency being monitored is
active.
The receiver will return to its previous operation only when the activity on the
priority channel has cleared and the squelch closed.

8-3 Programming priority sampling interval

The priority sampling interval is defaulted to five seconds. The programmable
range is 01 to 19 seconds.
The interval time is programmed with the
key sequence [2ndF] [PRIO] with the
[PRIO] key held for more than 1.5
seconds. The value may be changed in
one second increments by using the
UP / DOWN keys or [DIAL] or by keying
in a two digit number via the numeric
keypad. The new value is accepted by
pressing [ENT].