How easy are those modules to use?  If reliability is an issue, do you need 
to use an error detecting code?

Also, do you know of a north american supplier for a part like that?  All 
I've been able to find is something similar at qkits.com  for twice the 
price.

Thanks,
  Jason

----- Original Message ----- 
From: "Jinx" <joecolquitt@clear.net.nz>
To: "Microcontroller discussion list - Public." <piclist@mit.edu>
Sent: Tuesday, February 14, 2006 1:44 AM
Subject: Re: [EE] Speedometer for the model railroad - RF or IR?


> How much room have you got in a 1:160 wagon ? I guessed about
> 50-60mm x 20mm ?? I'd heard 2mm = 1ft. There are UHF data
> modules that are small and cheap. For example the TX434A (14mm
> square) and RX434A about half-way down this page


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