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Date Posted: Wed 22 Sep 2004; 3:39pm
Author: Spoddy
Subject: Re: Simple data exchange on unlicenced radio
In reply to: Teagus 's message, "Re: Simple data exchange on unlicenced radio" on Wed 22 Sep 2004; 1:08pm

There are loads of bits of the radio dial reserved for exactly that kind of thing, check out LPD (Low Power Devices) or SRD (Short Range Devices). See
<a rel=nofollow target=_blank href="http://www.ofcom.org.uk/static/archive/ra/publication/ra_info/ra114/ra114.htm">http://www.ofcom.org.uk/static/archive/ra/publication/ra_info/ra114/ra114.htm</a>
<a rel=nofollow target=_blank href="http://www.ofcom.org.uk/static/archive/ra/publication/ra_info/ra60.htm">http://www.ofcom.org.uk/static/archive/ra/publication/ra_info/ra60.htm</a>
etc.

You can even buy ready made circuit board modules for 418, 433.92, 458 MHz, etc.
<a rel=nofollow target=_blank href="http://easylinkuk.co.uk/page34.html">http://easylinkuk.co.uk/page34.html</a> is just the first example Google took me to, and there's a USB one here
<a rel=nofollow target=_blank href="http://www.crownhill.co.uk/product.php?prod=1261">http://www.crownhill.co.uk/product.php?prod=1261</a>

Have fun!

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