User's Manual
Table Of Contents
- Radio Overview
- Controls & Display
- General Operation
- 3.1 Basic Operation
- 3.1.1 Turning Power ON and Setting Volume
- 3.1.2 Persistent Settings
- 3.1.3 Power-Up Password
- 3.1.4 Speaking into the Microphone
- 3.1.5 Display Backlight Control
- 3.1.6 Display Viewing Angle & Contrast Adjust (Standard Control Head Only)
- 3.1.7 Zone / Channel Display and Select
- 3.1.8 Setting Squelch Control
- 3.1.9 Zone Edit
- 3.1.10 Transmit Disable
- 3.1.11 Operation At Extended Range
- 3.1.12 Preventing Vehicle Battery Discharge
- 3.1.13 Cleaning the Control Head
- 3.1.14 Radio Service
- 3.2 Single Touch
- 3.2.1 Single Touch Buttons
- 3.2.2 Detailed Single Touch Operation
- 3.2.2.1 Conventional Unit Call
- 3.2.2.2 Conventional Call Alert
- 3.2.2.3 Conventional Status
- 3.2.2.4 Conventional Message
- 3.2.2.5 P25 Unit Call
- 3.2.2.6 P25 Call Alert
- 3.2.2.7 P25 Status
- 3.2.2.8 P25 Interconnect
- 3.2.2.9 SNSZ Unit Call
- 3.2.2.10 SNSZ Call Alert
- 3.2.2.11 SNSZ Status
- 3.2.2.12 SNSZ Message:
- 3.2.2.13 SNSZ Interconnect:
- 3.3 Radio Inhibit
- 3.4 Setting Squelch
- 3.5 Operating Modes
- 3.1 Basic Operation
- Radio Wide Features
- 4.1 Option Buttons
- 4.2 Menu Mode
- 4.3 Time-Out Timer
- 4.4 Home Channel Select
- 4.5 Power Output Select
- 4.6 Alert Tone Select
- 4.7 Ignition Power Down Duration
- 4.8 Horn Alert
- 4.9 Microphone Off-Hook Detect
- 4.10 Surveillance Mode
- 4.11 Public Address
- 4.12 Scanning
- 4.13 Scan Lists
- 4.14 Over the Air Programming
- 4.15 Over the Internet Programming
- 4.16 Auto / Unmute
- 4.17 Location Services
- 4.18 Emergency Alarm Receive Indicator
- 4.19 Kiosk Mode
- 4.20 Analog Noise Reduction
- Conventional Mode 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 Channel Scanning
- 5.11 Standard Conventional Calls
- 5.12 DTMF / ANI Signaling
- 5.13 Project 25 Mode Features
- 5.13.1 Digital Unit ID
- 5.13.2 Talkgroup ID
- 5.13.3 Network Access Code (NAC)
- 5.13.4 EFJohnson System Out-of-Range Indicator
- 5.13.5 EFJohnson System Automatic Registration
- 5.13.6 P25 Group Calls
- 5.13.7 P25 Unit Calls
- 5.13.8 P25 Conventional Telephone Calls
- 5.13.9 Call Alert
- 5.13.10 Call History
- 5.13.11 Messaging
- 5.13.12 Status Messaging
- 5.13.13 P25 Packet Data
- 5.14 Keypad Programming
- 5.15 Text Messaging
- SMARTNET / SmartZone / P25 Trunked Features
- 6.1 Analog and Digital Operation
- 6.2 Viewing Unit ID
- 6.3 Standard Group Calls
- 6.4 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 Trunking Scanning Features
- 6.12 Dynamic Regrouping
- 6.13 P25 Radio Unit Monitor
- 6.14 SmartZone and P25 Trunking Unique Features
- 6.14.1 Busy Override
- 6.14.2 Site Trunking
- 6.14.3 Determining Current Site and Searching for a New Site
- 6.14.4 Locking / Unlocking a Site
- 6.14.5 Auto Site Search
- 6.14.6 P25 Wide Area Scan
- 6.14.7 Normal P25 and SmartZone Control Channel Hunt
- 6.14.8 Talkgroup Steering through System Access Permissions
- 6.14.9 Radio Information
- 6.14.10 Current Software version in the radio
- 6.15 P25 Trunking System Single Touch
- 6.16 P25 Messaging
- Secure Communication (Encryption)
- Data Features
- Tones & Error Messages
- Service Information
Draft 02 - Sep 1 2015
Viking Mobile Radio Operating Manual 8-3
Data Features
Frame Sync Seek Period - Selects the amount of time the radio listens for a frame sync
sequence before a packet is transmitted. Times are 0 to 5000 milliseconds, in
increments of 50 milliseconds. The default is 750 milliseconds.
Tx Short Random Range - Selects the maximum amount of time the radio waits to
transmit once the first qualified FS is received indicating the channel is clear. Times are
50 to 500 milliseconds, in increments of 50 milliseconds. The default is 50
milliseconds.
Tx Long Random Range - Selects the upper range of the random range. When the
radio detects a busy, the radio uses a random time within this range (Back off delay) to
determine when to retransmit the packet. Times are 50 to 5000 milliseconds, in
increments of 50 milliseconds. The default is 2000 milliseconds.
Tx Response Random Range - Selects amount of time radio waits before rechecking a
channel’s status once a busy channel status symbol has been received. Only applies to
ACKs. Times are 50 to 1000 milliseconds, in increments of 50 milliseconds. The
default is 1000 milliseconds.
8.2.2 Interface Connection
The radio connects from its MDP Interface to the RS232 COM port of the computer using
the P25 Mobile Data Peripheral (MDP) Interface cable.
8.2.3 Context Activation
For the radio to access data service on a trunking system, it must be a valid user on the
system and it must be affiliated to an RF site. Once this is accomplished, the radio must
request data services from the trunked system through the process of context activation; a
data registration of the radio with the system. Context activation is initiated from the radio.
In an EFJohnson Technologies mobile radio, context activation is automatically initiated
when the user selects a P25 trunking system with either data registration enabled or OTAR
enabled. During a context activation, the mobile radio attempts to access a packet data
channel (PDCH) at the site and send it its request for data services. If the context
activation is successful, the mobile radio will receive a response containing a IP address.
This IP address will be used by the mobile radio as a source IP address for all inbound data
messages sent, and is used by the host application as the destination IP address for all
outbound data messages.
If for some reason the context activation fails, the mobile radio will not be allowed to use
data services on the trunked system. If a PPP link is established between the portable
computer and mobile radio without the radio context activated, any data transmitted by the
computer to the radio is ignored.