speaker ( 6 ), and the key symbol appears in the display. Now all keys except the
PTT key( 9 ) are ignored. The speaker gives two short tones at every pressure on any
locked key, except the confirmation key ( 5 ).
To stop the key lock function depress and hold the confirmation key ( 5 ). While you hold
this key, press also the Up key
▲
( 4 ). Then one single short confirmation tone sounds
from the speaker, and the key symbol disappears in the display. Now all keys are
unlocked again.
5) Automatic abortion of functions:
If you select in the main screen for PMR or FM radio operation a function, you have to
insert all necessary entries within 5 seconds, otherwise the function will be aborted and
not executed. Instead the display returns to the main screen from which the function has
been selected before.
6) Up
▲
and Down
▼
keys:
If you depress briefly the keys Up
▲
and Down
▼
( 4 ), the corresponding values ( vol-
ume, channel ) are changed for one step up or down. If you hold these keys for 1 or 2
seconds, the values change quickly into the corresponding direction. Some values run
in a ring like system, others remain constantly after they have reached the highest or
lowest value. In this case you will hear from the speaker a triple confirmation tone.
7) Socket for external earphone-microphone:
The socket ( 2 ) ( ø 2.5 mm ) on the top side of the unit can be used to connect an exter-
nal earphone-microphone, e.g. ORM-MS. While the socket is used the internal speaker
( 6 ) and the internal microphone Mic ( 7 ) are switched off.
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