Advanced Operations; Channel Scanning; Enabling/Disabling Scanning; Priority Channel - ALAN Electronics HP 106 Manuel D'utilisation

7 Advanced operations

In this section we'll describe some advanced operations which you can
do with your handheld transceiver.

7.1 Channel Scanning

If you have more than one channel programmed, your ALAN
HP106/HP406 can scan them; in other words it can repeatedly switch
through all the programmed channels cyclically and automatically stop
when a signal is detected on one of them. During the scanning, only the
channels belonging to a specific scanning list (defined by the set-up) are
monitored. If a valid signal is received during the scanning, the scanning
stops and the communication is audible through the speaker. When the
signal is over, the scanning automatically restarts.
If the CTCSS/DCS or the selective call have been previously program-
med, the device could be set-up to stop only if the received signals con-
tain the correct signaling.
7.1.a Enabling/disabling scanning
To enable the scanning:
1) Turn off the device
2) Turn on the device keeping the MON + FUNC button pressed. A high
beep (after the acoustic tone of power-on confirmation stated in the
paragraph 5.1) notifies that the scanning is activated, and the status
LED will slowly blink amber.
During scanning the channel selector knob becomes invalid.
If the Scan List is empty, an error tone will be heard when you try to
activate the scan and the radio will not start the Scan Mode.
Obviously, at least two channels must be entered in the Scan List for
the unit to be put in the SCAN Mode.
If the PTT button is pressed during the channel scanning, this one will
stop and the radio will transmit on the first vacant channel, then the
unit will automatically resume scanning.
To stop the scanning, repeat the above procedure from step 1. A low
beep is produced and the scanning will stop.
7.1.b Priority Channel
Depending on the transceiver's programming, one of the scanning list
channels could have been assigned as Priority Channel. The scanning
will monitor the priority channel more frequently.
The programming could has been also set-up to allow you to decide,
from time to time, which is the channel to assign as priority. For informa-
tion please contact your dealer/radio network manager.
To assign a priority channel (if previously enabled by the programming):
1) Ensure that the scanning is not active.
2) Before starting the scan mode, select the desired channel using the
channel selector.
3) Start the channel scanning as described in paragraph 7.1.a. The
channel previously selected by the channel selector will be scanned
more frequently.
Once the scanning is started, if you wish to change the priority chan-
nel, you need to disable the scanning. Therefore it is not sufficient to
turn-off the device, rotate the channel selector, and switch it on again.
Depending on the programming, on the priority channel could also be
set the busy channel lock out function (BCLO) or other conditions (i.e.
Advanced operations 15