User`s guide

ASTRO XTL 5000 Digital Mobile Radio with O5 Control Head 69
Trunking Operation
Locking onto a Site
In areas that commonly have weak signals, use the SmartZone lock
function to prevent the radio from automatically scanning for a new
site.
Site Trunking
In a SmartZone system, if the zone controller for a particular site fails,
the site enters into a site-trunking operational mode. In this mode of
operation, the user can only communicate with other units at the
same site.
Radios in a SmartZone system can be programmed by a qualified
radio technician to display SITE TRUNKING when site trunking
becomes active. The display alternates with the current mode display
as long as the radio remains in site trunking. The radio also sounds a
valid-key chirp when it first detects site trunking.
1 Press the SITE softkey momentarily to display the current lock
status.
Either the display shows SITE LOCKED or SITE UNLOCKED.
Press the HOME button or SITE softkey again to return to
normal operation.
2 To change the locked or unlocked condition, press and hold the
SITE softkey until a tone sounds and the display changes.
After temporarily displaying the new condition, the radio returns
to normal operation.