AFAIK, one is legal in Europe and the other is legal in the US. I can't remember for sure, but I think the 418Mhz one is for the US market. CIAO - Martin. mrgreen@NOSPAMbigfoot.com To Reply: remove the NOSPAM from the return address. Stamp out SPAM everywhere!!! On Tue, 24 Mar 1998 11:58:00 -0800, you wrote: >Does anyone know, offhand, the pros and cons of 418 MHz vs 433 MHz >transmission? Specifically in reference to the choice of Linx Technologies >RF modules and their use in the U.S. > >I've heard that ham radio operators don't like 433 MHz clutter, but is 418 >MHz a better choice? > >Thanks, > >Bob >