User's Manual

54
SMARTZONE
OPERATION
Site Trunking
Site trunking occurs when a site is no longer able to
participate in wide-area calls controlled by the zone
controller. Radios operating in site trunking can only
communicate with other radios at that site. All trunking
features are still available. The radio will always be
looking for a wide-area trunking site to lock onto if it
roams into range of one.
2. Keep the PTT switch pressed for the amount
of time speciÞed in the codeplug for busy over-
ride delay time (typically about three seconds,
but can range from two to six seconds).
3. After the timer times out, if the PTT is still
pressed, the busy override request is sent.
4. A programmable busy override chirp acknowl-
edgement is heard.
5. If a grant is received, you should note that not
all of the members of the mode are engaged in
the call. You will not be able to determine this.
More sites may join the call, however, if mem-
bers become available at these sites and the
original call is still active.
1.
When a site goes into site
trunking, the radio
receives this indication
and displays.
2.
The display will alternate between the current
trunked mode and the site trunking display for
as long as the radio remains in site trunking.
3.
The radio will not be considered in site trunking
if:
a. The zone controller determines that the site
should no longer be in site trunking and the
radio receives this indication, or
b. the radio is out of range, or
c. the radio enters failsoft operation.
SITE TRUNKING
ATS2500
.
book Page 54 Monday
,
December 18
,
2000 7:39 PM