Confirmation Tone; Error Tone; Emergency Call Warning; Optical-Acoustic Messages - Bosch MR 11 S-C Operating Manual

923991 19.10.1999
Is emitted as identification of a successful key press. This means that the
input key has been pressed correctly.
Confirmation Tone
A high, short tone.
This sounds after a connection has been established (acknowledgement
received).

Error Tone

A low, medium duration tone,
or low permanent tone until the error has been eliminated.
Since operating errors depend to a large degree on the programming, here
are two possible examples:
a) If the volume is set to maximum or minimum and an attempt is made to
set the volume higher or lower, the error tone sounds as a low, medium
duration tone.
b) The radio has been programmed so that transmission is blocked when
the channel is busy. If you press the PTT key despite this, the error tone
sounds as a low, permanent tone until you release the PTT key.

Emergency Call Warning

Sequence of four short, high tones repeated every 2 s
The emergency call procedure is greatly dependent on the programming!

Optical-Acoustic Messages

Power-on Test

All three LEDs and all LCD symbols are switched on for approx. 1 s after
switching on the radio and then a short, high tone is emitted; then the dis-
play that the radio is ready to operate normally appears.
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