Stereo/Mono Switch; Limiter Switch For Earphone; Squelch; Rf Signal Indication - Beyerdynamic IMS 900 Notice D'utilisation

2.3.6 Stereo/Mono Switch

The stereo/mono switch (9) allows the use of earphones with either a stereo or mono output. The
transmitter must be set at stereo transmission, if a stereo output is required.
Note:
In the stereo mode the receiver features a richer sound quality, but with a lower S/N ratio. In the
mono mode the S/N ratio is higher as in the stereo mode. This is why some users feel that the mono
mode has a longer receiving distance than stereo mode.

2.3.7 Limiter Switch for Earphone

As the volume can be extremely high, the user should switch the limiter (10) always to the "ON"
position.
Note:
To protect your hearing, it is recommended to set the limiter always to the "ON" position. To avoid
damage to your hearing you should remove the earphone after using it for a long period of time.

2.3.8 Squelch

The squelch control (11) can be adjusted with a small screwdriver. If you turn the squelch control
clockwise, the effective reception distance is reduced, but also possible interferences. If you turn
the squelch control anti-clockwise, the effective reception distance is increased, but also possible
interferences. For optimum performance proper adjustment is required.

2.3.9 RF Signal Indication

When the RF LED (4) is illuminated, it is indicating that signals are received from the transmitter.
When interference signals occur, however, this LED will illuminate as well. To eliminate interferences,
you should select an interference-free channel.
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