
Operation
107
Muting the microphone during a call
2.
Press the
‹1›
key long again to switch off the loudspeaker.
Hold the radio set close to your ear like a telephone receiver for listening and
speaking when open listening is deactivated.
Done.
Muting the microphone during a call
If you are performing a call in duplex mode (full duplex voice connection), you can
mute the microphone to talk discreetly off the radio. Your called party will not be liste-
ning in.
Prerequisite:
Individual call in duplex mode (full duplex voice connection) is established.
Carry out the following work steps:
1.
Press the
‹*›
key long.
The microphone is muted. The person you have called or who has called you
cannot hear you.
2.
Press the
‹*›
key long again to switch the microphone back on.
Done.
Brief instructions for selected functions
The following tables list selected functions to be executed on the radio set by tasks.
General functions
Function
Operation
Prerequisite or special
features
Locking/unlocking the
rotary switch
Press
‹Volume/group
call
›
button long.
Possible only if the idle
display is being displayed.
Summary of Contents for FT4
Page 1: ...TETRA Radio Set Funkwerk FT4 S Operating Manual...
Page 27: ......
Page 30: ...26 Conformity and approvals EC declaration of conformity...
Page 70: ...66 TETRA basics TETRA connection types...
Page 142: ...138 Personal emergency signal functions Shutting down...
Page 148: ...144 Technical data Side connector...
Page 149: ......