ASTRO XTS 4250 Digital Portable Radio, Advanced Model 21
General Radio Operation
Zones and Channels
A zone is a grouping of channels. A channel is a group of radio
characteristics, such as transmit/receive frequency pairs.
Before you use your radio to receive or send messages, you should
select the zone and channel.
Select a Zone
Use the Menu
Use the Preprogrammed Zone Switch
1 Press U to find ZONE.
2 Press D, E, or F
directly below ZONE.
The current zone (in this
case, POL) flashes and the
channel name (DISP NW),
does not flash.
3 Press U to find the zone
you want. For example,
FIRE.
4 Press h to confirm the
displayed zone and channel.
OR
Press the PTT button to
transmit on the displayed
zone/channel.
1 If a control on your radio has
been preprogrammed as the
Zone switch, move the Zone
switch to the position for the
zone you want.
ZONE
POL DISP NW
FIRE DISP NW
FIRE DISP NW
FIRE DISP NW
FIRE DISP NW
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