Funkwerk FT4, Operating Manual, Page: 65 / 151

TETRA basics 61
Safety information
TETRA basics
In this chapter, you can familiarise yourself with the basics and functions of the
TETRA system.
Safety information
If the radio set is not logged into the personal emergency signal centre, the TETRA
emergency call cannot be transmitted if radio contact is unavailable due to insufficient
radio coverage. Transmit the TETRA emergency call one more time as soon as the
radio connection is re-established.
TETRA connection types
Due to the TETRA transmission technology, your radio set can set up different con-
nections with other subscribers. The following TETRA connection types are possible,
depending on the situation and the application:

Trunking mode (TMO) (p. 62)

Direct mode (DMO) (p. 64)