G e n e r a l i n f o r m a t i o n
General information
Q
Access codes
The factory setting for the four-digit phone code is 1234. When the phone
code request is enabled, the code is requested each time the radio is
switched on. See Security settings on page 91.
The factory setting for the five-digit security code is 12345.
To prevent unauthorised use of your radio, change the codes. Keep the new
codes secret and in a safe place separate from your radio. See Security
settings on page 91.
Q
Modes of operation
Your radio has two modes of operation: network mode and direct mode. In
addition to the standard direct mode, you have an optional function, the
repeater mode. In the network mode, the radio operates using the TETRA
network. In the direct mode, the radio operates without the network, so that
the radios communicate directly with each other. In the direct mode, only
some functions of the radio are available. The repeater mode extends the
range of your team’s communication in extreme conditions in the direct mode.
In the first phase, the TMR880i cannot participate in calls, that is, the
TMR880i user cannot hear or transmit direct mode calls when it operates as a
direct mode repeater. For more information on the direct mode, see Direct
mode on page 49.
Q
Transmission barring
When transmission barring is active, the radio does not send any signals to
the network, and only limited network services are available. In the network
mode, the radio can only receive group calls and status and text messages
addressed to talk groups, providing that the radio is registered to the network.
In the direct mode, the radio can receive direct mode calls. When
transmission barring is active, the radio cannot re-register to the network, for
example, if it is switched off and then on again.
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