•
Gateway not available
message is displayed.
• The gateway icon is blinking.
3.3.11
Gateway and Repeater Synchronization
To communicate using gateways or repeaters, the radio requires synchronization with a gateway or a
repeater.
A gateway or a repeater sends presence signals to radios. If a radio receives presence signals, it stays
synchronized with the gateway or the repeater which sends the signals. If a radio fails to receive a
presence signal it does not immediately lose synchronization. The radio waits for another successful
presence for a time defined by your service provider. This function ensures that communications are
not dropped due to temporary reception issues.
If a gateway or a repeater is unavailable or the radio is not synchronized with a gateway or a repeater,
depending on the setup configured by your service provider, the following scenarios apply:
• The radio falls back to Direct Mode Operation (DMO).
• After pressing the
PTT
button, a prompt appears warning that the second press overrides the
gateway or repeater operation mode.
• No direct DMO communications are permitted.
In the second scenario, while the radio receives individual calls and group calls, and replying to
individual calls is possible, replying to group calls is not possible.
3.4
Transmit Inhibit Mode
The Transmit Inhibit (TXI) Mode is a mode in which the radio sends no radio transmissions. Activate
this mode in RF sensitive areas, for example hospitals, airplanes, where safety can be jeopardized due
to transmission radiation.
To activate, select
Menu
→
Networks
→
TXI Mode
→
Activate
.
In this mode, the radio does not transmit under any circumstances except for the Emergency Calls. All
the functions and keys which cause transmission, for example registration to the network, changing
talkgroup or folder, sending SDS messages, or pressing the
PTT
button are disabled. Any transmission
trial causes the radio to display
Not Allowed In TXI Mode
notification and to play a tone.
Your radio can still receive:
• Group calls
• Messages - stored in the
Inbox
• Private call attempts - stored in the
Missed Calls
list, without the option to respond
When no danger to safety exists anymore, for example, when you leave the RF sensitive area, you can
deactivate the TXI Mode and the radio returns to standard operation.
You can deactivate the mode by selecting
Menu
→
Networks
→
TXI Mode
→
Deactivate
, pressing One-
Touch Button, or implicitly when initiating an Emergency Call.
NOTICE:
RF Transmissions from the radio are prevented under the following conditions:
• TXI Mode is activated.
• Battery is removed.
• The radio is turned off.
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Chapter 3: Modes
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