Re: Using garage door remotes as a voting system?

I'm putting together a talent show and want to have the audience vote for the contestants (on a scale of 1 to 4 would be fine) 

I don't have an answer but I wonder if there is
a way to build an rf oscillator with four
transmitter frequencies.  The tranmit frequency
is the vote for that remote.   Would taking the
relative signal strenght of the four frequencies
give you the relative vote count?  Can you sum
the votes by summing the RF power?   I suppose
you'd want more than one receive antenna and
that you'd want the antennas some distance from
the audience to mitigate the effects of closer
transmitters overwhelming farther transmitters.
.

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