Suggestions And Recommendations - dB Technologies Moving Bedienungsanleitung

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SUGGESTIONS AND RECOMMENDATIONS

INTERFERENCE PROBLEMS
To avoid any interference problems:
- keep the transmitter at a distance of at least 5 to 6 meters from EACH active receiver.
- receivers antennas must not be positioned too close to each other, if fit directly on the receiver, position
them at a 90° angle to each other.
- make sure that transmitters batteries are charged and efficient;
- If you can't avoid the interference you must change the operating frequency of the wireless system who is
experiencing problems, searching for an interference free channel.
Simultaneous use of more radio microphones
The MOVING D series is suitable for the simultaneous use of several transmitters at the same time.
If you have experience problems while using different microphones simultaneously, first of all check the
frequencies you are using.
In particular:
- Avoid frequency conflicts (check transmission channels);.
- As a general rule: maintain a frequency spacing of 250KHz minimum, 1MHz recommended.
In case of interference:
- Turn all transmitters off and make sure that all receivers are in the "mute" state. This procedure enables you
to identify a possible external interference source directly;
- Turn on one transmitter at a time and move it around to check the worst condition and identify the receiver
exiting the "mute" state. If a receiver which is not tuned to the frequency of the transmitter in use exits the
"mute" state, there is an inter-modulation problem and it is necessary to find a more suitable position with
higher distance between receivers.
9.1 WARNINGS
Inductive phenomena
To avoid any inductive phenomena responsible for buzzing and disturbances jeopardizing the good operation of
the system, avoid to put the receiver near any equipment producing a strong magnetic field, e.g. power
transformers, electric energy wires and lines supplying power to speakers.
Feedback phenomena.
To avoid any feedback phenomena (emission of "buzzing", particularly dangerous for speaker systems), it is
advisable to:
- keep a certain distance between radio microphones and speakers,
- lower the capsule gain or lower the volume of the wireless microphone,
- adjust the transmitter so that the capsule does not point to the speakers.
Signal drop outs
There are areas where it is difficult to receive the signal correctly. To avoid any drop outs, it is necessary to
move the receiver to a most suitable position, remove any obstacles and reduce the distance between transmitter
and receiver.
Moreover, place the transmitter as close as possible to the source, to avoid external noise or unwanted sounds.
ENGLISH
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