E F Johnson Company 2425372 Benutzerhandbuch
Draft
-16 5300 ES Series Mobile Radio Operating Manual
December 2006
the infrastructure to operate. This feature is intended to prevent some of the confusion
resulting from a site controller failure. When this occurs, all sites go into the Site Trunking
mode and radios continue to roam normally according to RSSI level. The result is that the
various radios selected by a particular talk group may be operating on different sites and
are unable to talk to each other (see Section 6.13.2 for more Site Trunking information).
resulting from a site controller failure. When this occurs, all sites go into the Site Trunking
mode and radios continue to roam normally according to RSSI level. The result is that the
various radios selected by a particular talk group may be operating on different sites and
are unable to talk to each other (see Section 6.13.2 for more Site Trunking information).
With the Zone Fail Site Lock feature enabled, the radio continues to roam normally when
the system zone controller is active. However, if the zone controller fails, this is detected
and the Zone Fail Site Lock mode is entered. The only site the radio is then allowed to
operate on is its home site. If its home site is not available, “Out-of-Range” is displayed. A
zone controller failure is detected by determining that every site in the dynamic site list is
in Site Trunking. Currently, this condition must be detected for at least 1 minute for the
Zone Fail Site Lock mode to be selected.
the system zone controller is active. However, if the zone controller fails, this is detected
and the Zone Fail Site Lock mode is entered. The only site the radio is then allowed to
operate on is its home site. If its home site is not available, “Out-of-Range” is displayed. A
zone controller failure is detected by determining that every site in the dynamic site list is
in Site Trunking. Currently, this condition must be detected for at least 1 minute for the
Zone Fail Site Lock mode to be selected.
The result of this operation is that all radios with the same programmed home site are
forced to the home site to communicate which ensures that they can continue to
communicate. If the home site is not available, the Out-of-Range condition tells the user to
attempt communication on another system or by some other means.
forced to the home site to communicate which ensures that they can continue to
communicate. If the home site is not available, the Out-of-Range condition tells the user to
attempt communication on another system or by some other means.
6.13.6 P25 Wide Area Scan
This feature is intended to enhance roaming performance, especially when system level
steering via radio or talk group permissions is used.
steering via radio or talk group permissions is used.
6.13.7 Normal P25 and SmartZone Control Channel Hunt
The following control channel search methods are normally used to find a control channel:
Short Hunt - The dynamic array of 7 (or 15) adjacent sites is searched. This list is
saved on power down and loaded again at power up. It is erased whenever parameters
are downloaded to the radio by the PC Configure programmer.
saved on power down and loaded again at power up. It is erased whenever parameters
are downloaded to the radio by the PC Configure programmer.
Long Hunt - If no valid control channel is located by the preceding short hunt method,
the radio searches the list of control channels programmed into the radio by the PC
Configure programmer.
the radio searches the list of control channels programmed into the radio by the PC
Configure programmer.
Full Spectrum CC Scan - If the two preceding methods do not locate a control
channel, every channel available to the radio is searched.
channel, every channel available to the radio is searched.