General Instructions For All Transmitters - Beyerdynamic Opus 300 Notice D'utilisation

4.

General Instructions for all Transmitters

4.1 Battery Change
• Switch the transmitter off before changing the battery.
• If you do not use the transmitter for several weeks or months, please remove the battery
as it can leak after some time and damage parts of the transmitter. Even "leak proof"
may leak after some time. Damage caused by leaking batteries is not covered under
warranty.
• Clean the battery contacts from time to time.
• Please do not throw used battery packs away with your household rubbish, but take
them to your local collection points.
• When using rechargeable batteries use conventional chargers.
4.2 Before the Soundcheck
1. Check the transmitter battery and replace or recharge it if necessary. Use fresh alkaline
batteries only.
2. When the transmitter is switched off and immediately switched on again, it is possible
that the transmitter remains switched off. The cause is the function that allows to switch
the transmitter on / off silently. Should this problem occur during operation, the battery
might have contact problems. After switching off the transmitter you should wait at least
1 second, until you switch the transmitter on again.
3. Check the performance area for dropouts. If you find any dropouts, try to eliminate
them by repositioning the antennae or the receiver.
4. The receiving antennas should be placed so that the distance between receiving antennae
and transmitter is at least 3 m. If necessary, use remote antennae (AD 707 A/B Set).
5. To avoid popping try holding the microphone at a slight angle below the mouth.
4.3 Positioning of Transmitters if Interference occurs
Put all transmitters in their position and switch them on. Switch each transmitter off
one at a time and check the receiver for interference in the corresponding channel. In case
of interference, move the transmitter one at a time to find out which one is causing the
interference. Exchange the transmitters among themselves or change the carrier frequency
until the system is operating without any interference. The interference is possibly eliminated
by changing the squelch (refer also to chapter 1.6 How to adjust the Squelch).
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