Basic Operations
11
Don’t release the PTT before your message is over or start talking
before pressing it, otherwise your message will be “chopped”.
A PMR446 handheld radio doesn’t normally allow to talk and
receive simultaneously, for this reason make your messages with
a reasonable time. When you are talking, the other parties can’t
do that, so don’t occupy too much the channel. Use the common
sense.
The radio might be programmed with a timeout timer which
automatically put your radio in reception if you talk too much
(after a preset time). In this case release the PTT and wait for a
few seconds: the radio TX features will be automatically restored.
Ask the network responsible or your dealer for further details.
The radio might be programmed with a busy channel lock out
which automatically disables transmission if your channel is busy.
Scanning channels
If you have more than one channel programmed, your ALAN HP446
can scan them: in other words it can cycle through them and stop
when a signal is detected.
The advanced scan functions of the radio allow to optionally look for
carrier or carrier with CTCSS/DCS or CTCSS.
1)
To activate the scan Hold CALL button and press the
key.
You will see the channel numbers cycling continuously.
2)
To stop channel scan Hold CALL button and press the
key.
3)
User can review the Scan-List. Scroll the channel list: channels,
which shows ”•” icon, are in the SCAN list.
4)
User can add or remove channels from the Scan list. This
operation is disabled during scanning:
a) Select the channel which has to be added or deleted from the
Scan list.
b) Press CALL and MON button: the ”•” icon will appear or
disappear.
5)
One among the programmed channels can be assigned as Priority
Channel. The scanning will look back at the priority channel with
high frequency.
6)
User can select the priority channel:
• To activate (or deactivate) Priority channel, press the CALL +
Key. "
P
" will be displayed to confirm your selection.
NOTE: If the Scan List has no channels, a low tone (error beep)
will be heard when the CALL +
key is pressed, no channel
will be scrolled in the display. At least two channels must be in
the Scan List for the Unit to be put in the SCAN Mode.
When a proper signal is received on a channel, the radio will stop
scanning and audio will become audible. When the activity on
that channel ceases, the unit will automatically resume scanning.
If CTCSS/DCS have been previously programmed, the scanning
will stop only if the received carrier has the appropriate signalling.
If PTT is pressed during scanning, the radio will transmit on the
first vacant channel. In case of no activity, the unit will automatically
resume scanning.
English
Содержание HP446
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