AR2700 operating manual
20
[0] [LAMP] Numeric 0 / Lamp key
This key acts as a numeric 0 when entering frequencies via the keypad.
In search, scan and memory modes this key is used to identify bank 0.
If the sequence [2ndF] [0] is keyed, the LAMP will be switched on for a period
of about five seconds. If you are using the keypad, the five second timer starts
from the last key press so that you are not inconvenienced in areas of low level
lighting by the lamp switching Off while you are keying in data.
It is possible to switch the lamp On permanently using the key sequence
[2ndF] [0] with the [0] key help for more than 1.5 seconds. This is useful
for base station or mobile operation but uses more power so will reduce the
operational time if running from batteries. To switch the lamp Off (if it has
been switched permanently On) use the sequence [2ndF] [0].
[PASS] [BEEP] Frequency pass / beep key
The [PASS] key is used during search to skip unwanted frequencies,
these may be permanently active control channel transmissions,
broadcast stations, spurii etc. Up to 50 frequencies may be passed in
this way and are held in a list numbered from 00 to 49.
When the search process stops on an active channel press [PASS]. The
frequency will automatically be assigned to a pass channel and the set will
move on to the next frequency in search mode. If the set fails to respond to
the [PASS] key then all 50 PASS channels have probably been used up and
you will need to delete some in order to make more channels available.
To review the pass list press and hold the [PASS] key for more than 1.5
seconds while in MANUAL or SEARCH mode. The legends “CH” and
“PASS” will be flashing on the LCD to indicate that the pass list has been
accessed and the first frequency in the list will be displayed along with its pass
channel number “00”.
The list may be reviewed using the UP / DOWN keys or by using the [DIAL].
A pass frequency may be deleted by first displaying the selected frequency in
the pass list then keying [0] [ENT]. The frequency will disappear and the list
will “shuffle down” to fill the gap which has been made. It is also possible to
delete the entire list in one go, this will be described later in the manual.
Frequencies may be manually added to the pass list by first displaying the
chosen pass channel then keying in a frequency followed by [ENT], the
pass list will increment to the next channel. To escape from the pass list
press [CLR].
The key sequence [2ndF] [PASS] toggles On and Off the keypad “beep” and
“boop” confirmation tones. The beep tones can speed up entry of data via the
keypad as you need to look at the LCD less often. If you have the keylock On
and attempt to access the keypad, the beep low tone “boop” draws attention to
the fact that the keypad is locked.
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