User's Manual
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 Single Tone Encoder
- 5.14 MDC1200 Compatibility
- 5.15 Project 25 Mode Features
- 5.16 Keypad Programming
- 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 ZoneFail Site Lock
- 6.13.6 P25 Wide Area Scan
- 6.13.7 Normal P25 and SmartZone Control Channel Hunt
- 6.13.8 Talkgroup Steering Via System Access Permissions
- 6.13.9 P25 Wide Area Scan
- Miscellaneous
- Determining Available Options
- 5300 ES Mobile Firmware Versions
- Password Description
- Secure Communication (Encryption)
Draft
-14 5300 ES Series Mobile Radio Operating Manual December 2006
5.15.2 Group ID Code
Each Project 25 channel is programmed with a group ID that determines which group of
mobiles will receive the call. A call is received on a channel if a selected or scanned
channel is programmed with that ID and the correct NAC is detected (see following).
Group IDs can be any number from 0-65,535. Group ID detect can be disabled by the
Normal/Selective squelch function described in
Section 5.4 and the Monitor Mode
described in Section 5.2.
5.15.3 Network Access Code (NAC)
Project 25 conventional channels also use a NAC (Network Access Code) to control which
calls are received on a channel. The NAC can be 0-4095, and each transmit and receive
channel can be programmed for a different code. Other operation, such as monitoring
before transmitting, is similar to that of analog channels. NAC (and group ID) detect can
be disabled by the monitor mode described in
Section 5.2.
5.15.4 P25 Group Calls
P25 Group calls are placed by simply selecting the channel programmed for the desired
group, monitoring the channel if required, and transmitting. When a P25 group call is
received, the alias (or frequency) of the selected channel is displayed. The radio can be
programmed so that the following are also displayed for 0.5-7.0 seconds or continuously
during the call.
P25 PTT ID - The unit ID of the mobile placing the call is displayed.
P25 Talk Group - The alias of the talk group on which the call is being received is
displayed.
User Group ID - If the group ID of the call being received is included in a
preprogrammed User Group ID list, the alias programmed in that list for that group is
displayed.
5.15.4.1 Changing Talk Group Assigned To a Channel
If the TG SEL option switch is programmed, the talk group assigned to a channel can be
changed by the user. The new talk group continues to be assigned to the channel until it is
manually changed again (cycling power or selecting another channel does not reselect a
default talk group). Change the talk group assigned to a channel as follows:
1 Select the channel to be changed and then press the TG SEL option switch.
2 Rotate the Select switch to display the talk group to be assigned to that channel. Talk
groups are indicated by a unique identification in the alphanumeric display.