User's Manual

SMARTNET/SMARTZONE/P25 TRUNKED FEATURES
50
6.13 DYNAMIC REGROUPING
The dynamic regrouping feature allows a
dispatcher to change the current talk group or switch
radios to a predefined regrouping channel to receive an
important message. When the console issues a regroup
order, the radio switches to the preprogrammed
regroup talk group.
If the Cancel Dynamic Regrouping option switch
or menu parameter is programmed, it can be used to
exit the dynamic regrouping mode if desired.
Otherwise, if the lock mode was not specified, the
selected talk group can be manually changed and the
previous talk group is reselected if power is cycled. If
a locked regroup command is received, the displayed
talk group cannot be changed manually or by cycling
power. It can be changed only after a clear order is
received from the console.
Dynamic regrouping operates as follows:
1. When this command is received, alternating tones
sound and the radio automatically changes to the
regrouping channel and “DYN REGRP” is
displayed.
2. Manually select the channel corresponding to that
alias. If this is not done, transmission still occurs on
the new channel, but the alternating tones sound
each time the PTT switch is pressed.
3. Talk and listen as usual. When dynamic regrouping
is canceled by the dispatcher, a short tone sounds. If
a standard channel is not selected after this occurs,
transmission is not allowed if the talk group is
assigned as a dynamic regrouping talk group only. If
it is assigned as a normal talk group, normal trans-
missions are allowed.
6.14 SMARTZONE AND P25 TRUNKED
UNIQUE FEATURES
6.14.1 INTRODUCTION
As described in Section 3.9.3, the SmartZone
®
mode provides wide area coverage by allowing
roaming between SMARTNET and conventional sites.
The P25 Trunked mode can provide access to a single
trunked site or roaming between several trunked sites.
Operation in these modes is the same as just described
in the preceding sections (6.1-6.13) with the following
additional features:
6.14.2 BUSY OVERRIDE
The busy override feature is enabled at the system
level by the system manager and is not a program-
mable radio feature. It allows a call to be placed even
if not all sites you are calling have a free traffic
channel. The only sites guaranteed to be included are
the Critical Sites and the sites where a Critical User is
located. This feature operates as follows:
1. Assume that you have attempted to place a call and
the system was busy (“BUSY” displayed and busy
tone sounded).
2. Release the PTT switch and then press it for 5
seconds or more. If a chirp tone sounds with the PTT
switch pressed, busy override is occurring.
NOTE: Remember that not all members of the talk
group are receiving your message. Missing
members will start receiving your message as
channels become available.
6.14.3 SITE TRUNKING
Site trunking occurs when a site can no longer
participate in wide area trunking. It is disconnected
from other sides and only supports calls with other
radios on that site and cannot route audio to other
sites. When site trunking is occurring, the radio
searches for other sites that may provide wide area
coverage.
Site trunking ends when a wide area coverage site
is located, the current site is operating again as a wide
area coverage site, an out-of-range condition occurs,
or the failsoft mode is entered. The radio can be
programmed so that “Site Trunking” is displayed and/
or an alert tone sounds when site trunking occurs.
SmartZone and P25 trunked systems can be
programmed for “Disable Site Trunking Operation”.
The radio is then not allowed to start or operate on a
site trunking site. If a site goes into site trunking, the
radio leaves that site’s control channel and attempts to