I have an application for remote control of some costume lighting. Each=20
performer will have a battery pack and some 24V LED lighting.

The requirement is to turn all 18 costumes on and off remotely in=20
unison. A small amount of lag is ok as the lighting will only be turned=20
on once they are all in the arena, and turned off as they exit about 10=20
minutes later. Getting the performers to control their own lighting is=20
not an option.

Required range is approx 60 metres (200') maximum from the single=20
transmitter to the furthermost performer. One thing that does concern me=20
is the effects of the performer's costume and body on the RF range.

The battery may be 2x 12V units, or a single 12V unit with a step up=20
converter. Receiver interference from a converter may also be a problem,=20
so we may stick with 2 batteries. This would also allow for a more=20
balanced costume design.

I was thinking of 433MHz with a simple decoder chip, similar to a garage=20
door opener. The arena is enclosed with sheet iron panelling, and the=20
closest parking is probably 50 metres outside which should limit=20
interference from car remotes.

Any suggestions or experiences would be greatly appreciated.  Thank you.
David...

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___________________________________________
David Duffy        Audio Visual Devices P/L
Unit 8, 10 Hook St, Capalaba 4157 Australia
Ph: +61 7 38235717      Fax: +61 7 38234717
Our Web Site: www.audiovisualdevices.com.au
___________________________________________

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