Many thanks for replying and for flattering me with the assumption that I know what the heck I'm talking about :-)
My program currently just uses the USB link to send a simple serial sensor reading as a string to a Processing sketch.
I want to replace the cable with something like this...http://www.coolcomponents.co.uk/catalog/product_info.php?cPath=25&products_id=186
..if possible ....and pick up the sensor data within a simple serial string of data, using another arduino....unfortunately the electronics side is much newer to me than the programming side and so I've been making use of this forum and experimentation so far.
Distance that the signal needs to reach is fairly minimal, no more than 30 feet or so.
However in answer to your question....err....no idea I'm afraid :-/