mission and the radio will periodically change to
the pre-programmed emergency system and
channel to send the emergency signalling and
then change back to the selected channel.
METHOD 4:
Same as METHOD 3 but the radio will lock on to
the pre-programmed emergency system and
channel. Any attempts to change the channel
will be disabled.
The emergency state can be cleared by turning the radio off
and then back on.
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Channels which have been previously added to the scan list
on a per system basis may be scanned. The selected channel is
scanned (if enabled through programming) whether or not it is
in the scan list. Each conventional system’s channel scan list is
retained in memory when the radio is turned off or when the
battery pack is removed.
The scan rate will vary depending upon the number of chan
-
nels in the scan list and whether or not the radio is programmed
to scan for channels with decoding enabled. Fewer channels will
result in a faster scan rate. If programmed for dual-priority scan
operation, the priority-one, priority-two and the remaining scan
list channels are scanned. Once a signal is detected and the
correct encoded squelch signal is decoded (if programmed), the
radio receives the message and displays the received scan chan
-
nel. At the same time, scanning continues on the priority-one
and priority-two channels. Should the priority-one or priority-
two channel carrier, regardless of encoded squelch decoding, be
detected while a non-priority channel is being received, the dis
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XM
MIIT
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