Judging by the amount of discussion regarding 418-433MHz data links and the amount of mail I got directly, I think it's fair to say lots of us are using or investigating the use of RF links. (The rest of you guys, go grab a cup of coffee... yeh, both of you!) My poor range performance of the Lynx LC-series evaluation kit was due to a short to ground on the TXR output somewhere under the SMD module. Lynx is sending me a replacement. They apparently test each component prior to assembly, then do a bench-test for overall operation; so mine (working at close proximity) passed. Lynx asked me to return it for evaluation. Their tech. support is good; I didn't want to give them an undeserved black eye. I suggested they set up a Lynx list server :) John