User's Manual

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Table Of Contents

Contents
For your safety
Menu maps
1 About this guide
- Safety warnings used in this guide
- Related documentation
2 Before using your radio
- For your safety — battery warning
- Attaching labels to the radio or battery
- Charging the battery before first use
- Attaching the battery
- Removing the battery
- Attaching the antenna
- Removing the antenna
- Attaching a belt clip
- Removing a belt clip
- Installing an audio accessory
3 Getting started
- About P25 digital radios
- About the radio controls
- Understanding the radio display
- Understanding the radio indicators
- Using function keys to access frequently used features
- Navigating the radio’s menus
4 Basic operation
- Turning the radio on and off
- Adjusting the speaker volume
- Locking and unlocking the keypad
- Using a wireless headset
- Selecting a zone
- Selecting a channel
- Limiting call time
- Checking recent calls
5 Operating in conventional mode
- Making calls
- Receiving calls
- Communicating directly with other radios
- Checking that the channel is clear
- Using the radio in different repeater areas
- Hearing faint and noisy signals
6 Operating in P25 trunking mode
- About P25 trunking
- Checking that the system is available
- Making a talkgroup call
- Receiving a talkgroup call
- Making an individual call
- Receiving an individual call
- Emergency calls
- Making a phone call
- Unconnected calls
- Failsoft mode operation
- Dynamic regrouping
7 Scanning
- About scanning
- Activating standard scanning
- Activating background scanning
- Activating in-zone scanning
- Activating talkgroup scanning
- Making a call while scanning
- Suspending a channel from a scan group
- Editing a scan group
8 P25 services
- Messages
- Status update
- Status request
- Call alert
- Radio check
- Radio unit monitor
- Radio inhibit and uninhibit
9 GPS location services
- About GPS location information
- About GPS status information
- Viewing GPS information
- Sending GPS information
- Receiving and logging GPS information
- Accessing logged GPS information
10 Emergency operation
- About emergency calls
- Making a priority call
- Standard emergency mode
- About manual emergency operation
- Accessing emergency GPS location information
- Loneworker monitoring
11 Encryption
- About encryption
- Encrypting calls
- Making an encrypted call
- Receiving an encrypted call
- Changing the radio’s encryption key
- Removing encryption keys from the radio
- Updating encryption keys over-the-air
- Using an encryption demonstration key
12 Customizing radio settings
- Extending battery life on a shift
- Changing the volume of all audible indicators
- Changing the volume of keypress tones
- Changing to quiet operation
- Changing to silent operation
- Turning on backlighting
- Adjusting the display contrast
13 Charging and caring for batteries
- About the chargers
- Special conditions when using IS radios
- Before using the charger
- Charging the battery
- Maintaining battery life and performance
- Storing batteries
- Disposing of batteries
14 Troubleshooting
- About troubleshooting
- System error message
- When your radio won’t turn on
- Identifying the radio’s audible tones
- Viewing radio information
- Changing the radio ID
- Running diagnostics tests
- General care
15 Glossary
Index
Directive 1999/5/CE Declaration of Conformity
Tait Software Licence Agreement

76 Operating in P25 trunking mode

DRAFT 2

Failsoft mode operation

If your radio is unable to access the trunking system,

it may be programmed to enter failsoft mode. Failsoft

mode operates in one of two ways: ‘radio-based’

failsoft and ‘infrastructure’ failsoft.

Radio-based failsoft

When you lose access to the trunking system, no

longer appears, the bars in the RSSI icon disappear

, and the display shows No service.

After a short time, your radio switches to a

programmed conventional communications channel.

The radio remains on that channel until you select a

trunked talkgroup with access to the trunking system.

Infrastructure failsoft

Your radio receives a message from the trunking

infrastructure to say that the trunking system is now

operating in failsoft mode.

While in failsoft mode, the display shows

Failsoft, and

the radio sounds a repeating double beep. The double

beep continues until normal service is restored.

Talkgroup 1

No service

Channel 1

Zone 11

Failsoft

Zone 11