User Guide

short data services (SDS)
Text messages that can be sent or received on a TETRA
radio.
soft key
A programmable key on a Sepura radio that can be
customised as a shortcut to a function, for example a
context key on the radio that can be customised as a
shortcut to the Contacts list. On some radios, the
Select/Send key and the Cancel/Home key, along with all
12 keys of the radio keypad (1 – 9, *, 0, #,), left- and right-
context keys, and the Emergency Key are programmable
soft keys. (S)
Smart Call
On Sepura radios, a Smart Call is a call to an address
other than the selected talkgroup. (S)
status message
Words or concise phrases selected from a pre-determined
list that is resident in the terminal, which are transmitted
as a simple code reference, and then de-coded by the
receiving device and displayed as the word message, e.g.
"At the scene".
talkgroup
A pre-defined group of users on one frequency band. (T)
telephone call
Use this term when referring to the user making a
telephone type call, where the user holds the radio similar
to that when holding a telephone handset or mobile
phone. Do not use the term full duplex call in user
documents. See also private telephone call, and group
call.
Transmit Inhibit mode
An operational mode for use in RF sensitive areas, that
allows the radio to continue operating without
transmitting. When Transmit Inhibit is activated and
deactivated, a status message is sent confirming the
operational state of the terminal.
Trunked Mode Operation (TMO)
Radios operating over the TETRA network.
tri-colour LED
An LED with three colours that is used on a Sepura radio
and mobile transceiver to alert the user to a change of
state such as the radio operating in transmit inhibit mode.
Sometimes called the Status Indicator. (S)
UDSL
User Defined Scan List. sf.
User Defined Scan List (UDSL)
Pre-programmed (optionally user editable) list of scanned
groups.
user profile
User profiles are pre-set combinations of alerts and
settings on a Sepura radio designed to match the user's
circumstances or environment. If the User Profiles feature
has been customised it allows you to switch easily
between user profiles. When a user profile is selected, an
icon is displayed on the status line at the top right of the
display to indicate which user profile is active. (S)
WAP
Wireless Application Protocol. sf.
whisper mode
A customisable feature on a Sepura radio which adjusts
the sensitivity of the microphone to allow the user to
whisper verbal communications during covert operations.
(S)
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SC20 series – 04/2016