Operating Manual Part 15

3-8 5300 ES Series Mobile Radio Operating Manual October 2008
General Operation
to “press and hold”, do so until the desired action occurs. For other operations (not
specified “press and hold”) only momentary pressing is required.
3.7.1 Conventional Mode
This is a non-trunked operating mode which accesses independent radio channels. There is
no automatic access to several channels. Selecting a conventional channel selects a
transmit and receive frequency and other channel parameters such as squelch control
coding.
Conventional channels can be either standard (analog) or Project 25 (digital). With digital
operation, the DSP (Digital Signal Processor) converts the audio signal to digital data
packets. Another difference is that analog channels use Call Guard (CTCSS/DCS) squelch
control and Project 25 channels use a NAC (Network Access Code) and talk group ID
codes.
With Project 25 operation, a NAC is transmitted which must match the NAC programmed
in the Repeater or Base Station equipment and the radio(s) being called for communication
to occur. In addition, to receive standard group calls, the receiving radio must be
programmed to detect the transmitted talk group ID code.
With conventional operation, a busy channel condition is detected automatically if the
busy channel lockout (transmit disable on busy) feature is programmed. Otherwise, it must
be detected manually. An out-of-range condition is not indicated by special tones or
messages as with SMARTNET operation because there is no initial data exchange with the
repeater that allows this condition to be detected. Operating features unique to
conventional channels are described in Section 5.
3.7.2 SMARTNET / SmartZone Mode
This is a trunked operating mode in which automatic access is provided to several RF
channels. ID codes are used to select what radios are being called and what calls are
received. Monitoring is performed automatically and special messages and tones indicate
busy and out-of-range conditions.
SMARTNET and SmartZone operation and programming is very similar. Basically,
SMARTNET operation is limited to a single repeater site and SmartZone operation allows
automatic roaming between sites. SMARTNET/SmartZone features include roaming
(SmartZone only), telephone, private, and emergency calls, Call Alert
™
, and messaging.
Either analog or digital signaling may be used. Enhanced SMARTNET/SmartZone
features provide the same, plus gives you responses from the system. For example, if the
ID you are calling is turned OFF, the system will display “NOT AVAILABLE”.