Hopefully Bruce will read this post, he sells these modules on his site.

I have found schematics that use the TWS and RWS 434 receiver and transmitter, they connect these modules to some decoder I.C.

I was wondering if that decoder is needed at all if I use Picbasic's Serin and Serout.

What's the main difference between the RF modules that use 434Mhz and the ones that use 315MHz? Just the frequency perhaps?

Here's a link to Bruce's site, it one of the schematics I was talking about. http://www.rentron.com/Files/NEW_TWS_RWS_DOC.pdf

thanks in advance.

Art~