Lee Buller wrote: > >I run legal limit on some contests. I seem to burn up USB to Serial >devices. I am grounded properly. I am suspect of these things in high >RF fields. But...what is a guy gonna do when RS232 Serial ports are >totally discontinued. Turn down or turn off the amp. Hmmmmmm! >
Look very carefully at that statement "I am grounded properly"; because the evidence suggests otherwise. More specifically, it suggests that the ground terminals for various parts of your shack are not correctly bonded together. Another very common source of RF in the shack is a bad shield connection inside a PL259. A few minutes applying a clamp-on RF current meter to various connecting cables could tell you a great deal. -- 73 from Ian GM3SEK http://www.ifwtech.co.uk/g3sek ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
