Operating Manual Part 15
Table Of Contents
- Safety Information
- General
- Controls And Display
- General Operation
- Radio Wide Features
- Conventional Features
- 5.1 Monitoring Before Transmitting
- 5.2 Monitor Mode
- 5.3 Busy Channel Lockout
- 5.4 Call Guard Squelch
- 5.5 Penalty Timer
- 5.6 Conversation Timer
- 5.7 Repeater Talk-Around
- 5.8 Displaying Transmit / Receive Frequency
- 5.9 Emergency Alarm and Call
- 5.10 Conventional Mode Scanning
- 5.11 Standard Conventional Calls
- 5.12 DTMF / ANI Signaling
- 5.13 Project 25 Mode Features
- 5.14 Keypad Programming
- 5.15 Text Messaging
- 5.16 Sending Global Positioning System (GPS) Data
- SMARTNET / SmartZone / P25 Trunked Features
- 6.1 Analog and Digital Operation
- 6.2 Viewing Unit ID
- 6.3 Standard Group Calls
- 6.4 Private (Unit-To-Unit) Calls
- 6.5 Telephone Calls
- 6.6 Call Alert
- 6.7 Messaging
- 6.8 Sending Status Conditions
- 6.9 Emergency Alarm and Call
- 6.10 Failsoft Operation
- 6.11 SMARTNET / SmartZone / P25 Trunked Scanning Features
- 6.12 Dynamic Regrouping
- 6.13 SmartZone and P25 Trunking Unique Features
- 6.13.1 Busy Override
- 6.13.2 Site Trunking
- 6.13.3 Determining Current Site and Searching for a New Site
- 6.13.4 Locking / Unlocking a Site
- 6.13.5 Auto Site Search
- 6.13.6 ZoneFail Site Lock
- 6.13.7 P25 Wide Area Scan
- 6.13.8 Normal P25 and SmartZone Control Channel Hunt
- 6.13.9 Talkgroup Steering through System Access Permissions
- 6.13.10 P25 Wide Area Scan
- 6.14 P25 Trunking Unique Features
- Miscellaneous
- Determining Available Options
- Password Description
- Secure Communication (Encryption)
- Service Information
October 2008 5300 ES Series Mobile Radio Operating Manual 6-21
SMARTNET / SmartZone / P25 Trunked Features
A Wide Area Scan can be programmed to minimize the problem just outlined. This feature
is programmed on the Talk Group list screen selected on the P25 System screen. When
Wide Area Scan is selected, talk group site preferences are no longer available. However,
System Site Preference lists can still be used. The Wide Area Scan feature functions as
follows:
1Assume TG1 is selected. If it is the first time this talk group is selected, normal searching
for a control channel occurs according to the hunt methods previously described.
2 When another talk group is selected, the active valid site for TG1 is stored in EEPROM
memory.
3 The next time TG1 is selected, the following procedure is performed before performing
the normal hunt methods previously described.
a The last valid site ID and its receive and transmit channel numbers are loaded from
EEPROM memory.
b The dynamic site list is checked to see if any newer receive/transmit channel
information is available for the last site ID.
c The best receive/transmit information is used and the radio checks to see if this
control channel is available.
The result of the preceding operation is that the radio has a reasonable chance of finding a
valid site, usually on the first try. This greatly reduces access time, even on systems which
have highly restricted talk group based access.
With this option enabled on a talk group, as the talk group affiliates with a site that site is
saved if the mobile is changed to a new talk group. When the radio moves back to the
Wide Area Scan talk group, it will attempt to affiliate on the saved site before looking for
a new site.
6.14 P25 Trunking Unique Features
P25 Trunking supports data service on a P25 Trunking system using an EF Johnson
Technologies radio and a portable computer. The radio communicates with the computer
over the P25 Mobile Data Peripheral (MDP) Interface, which uses an RS232 hardware
interface at 9600 bits/s. The following protocols are supported across the interface:
• Point To Point Protocol (PPP)
• Internet Protocol (IP)
• Universal Datagram Protocol (UDP).