Operating Manual Part 15

6-14 5300 ES Series Mobile Radio Operating Manual October 2008
SMARTNET / SmartZone / P25 Trunked Features
4 All group calls which follow are then emergency calls (private, telephone, and call alert
calls are not allowed). If the channel is changed, the call is made on the emergency talk
group programmed for the new channel. If the Surveillance Mode is enabled (see
Section 4.10), all indicators, lights, and tones are disabled. If “No Receive Activity
During Emergency” is programmed, receive audio, the front panel LED, and receive
icons are disabled in the receive mode.
Note Communications between the radio with the emergency and the dispatcher are closed.
That is, other stations in the talkgroup can see “Emergency” toggle on their displays, and
can listen to talk between the dispatcher and the radio with the emergency, but cannot talk
to that radio.
5 To exit this mode, cycle radio power or press and hold the Emergency switch.
6.10 Failsoft Operation
If a failure occurs in the SMARTNET/SmartZone or P25 Trunked system so that it cannot
be used, the system directs the radio to automatically enter the failsoft mode. When in this
mode, “Failsoft” and the alias of the selected channel are alternately displayed. A failsoft
tone may also be heard, depending on how the repeater is programmed.
When in the failsoft mode, operation is in the conventional mode on the preprogrammed
failsoft channel (a different failsoft channel can be programmed on each talk group). If a
transmission is attempted before a failsoft channel is located, a continuous tones sounds
until the PTT switch is released. When the radio system returns to normal operation, this is
automatically detected and normal operation resumes.
6.11 SMARTNET / SmartZone / P25 Trunked Scanning Features
Scanning on a SMARTNET/Smartzone or P25 Trunked system is called Priority Monitor
Scan. The following are unique features of this type of scanning. For general scanning
information applicable to all operating modes, refer to Sections 4.12 and 4.13.
• Scanning is turned ON and OFF by the Scan option switch (or selecting the menu
parameter). Talk groups (channels) can be programmed so that scanning automatically
starts whenever the talk group is selected (Autoscan).
• When responding to calls in the scan mode, the programming of the Talkback Scan
parameter determines if a response always occurs on the talk group of the call (Active
Group) or the Selected Group if they are different. Transmissions at other times always
occur on the selected talk group.