User's Manual

SMARTNET/SMARTZONE/P25 TRUNKED FEATURES
46
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 of the 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-like 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 mem-
bers 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. 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.
6.14.4 DETERMINING CURRENT SITE AND
SEARCHING FOR A NEW SITE
To display the RSSI level of the current site, press
the SEARCH option switch. The display then indi-
cates the current site number as “SITE xx” and the
RSSI (Receive Signal Strength Indicator) signal level
as “RSSI xx”. This mode is then automatically exited.
To scroll through the other programmed sites,
press and hold the SEARCH option switch while
“Site xx” or “RSSI xx” is displayed. If site lock is on
when site search is entered (see following), the radio
will be locked on the new site when this function is
exited.
6.14.5 LOCKING/UNLOCKING A SITE
It is sometimes desirable to stay on a site. To
prevent the radio from searching for a new site, lock it
on the current site by pressing the LOCK option
switch. The display then momentarily indicates the
site alias to indicate that the current site is locked (“x”
is the current site number). To unlock the site, press
the LOCK option switch again and “UNLOCK” is
momentarily displayed.
6.14.6 ZONEFAIL SITE LOCK
This is an optional feature that permits the radio
to lock onto “Always” preferred sites if communica-
tion with the site controller is lost.