I think I sent this to Sebastian when I in fact meant to send it to the whole BBS. My aplogies if it's a duplicate post. Michael ----- Original Message ----- From: "Michael Tondee" mat_62@netcommander.com To: "Sebastian" w4as@bellsouth.net Sent: Tuesday, August 19, 2008 5:10 PM Subject: Re: [amsat-bb] Re: LMR400 or 400UF? (Thanks and further comments)

First of all, thanks to everyone who responded to my query about coax. I know sometimes we may get in disagreements on this BBS but when I have a technical question I'm not sure of, I count on advice from here and I'm not ever dissapointed. The existing coax feeding the antenna is 9913 and as we all know, it has problems. It was all I had though at the time I was constructing my station. I am more than certain now though that it has moisture in it and is causing Rx and TX problems. I would say that the run from the preamp to the antenna is 6 to 8 feet of coax and right now that's RG8U. I was thinking that loss was negligible but I guess every little bit of signal I can squeeze out there is important. There is also about a 5 foot run of RG8U in the shack that goes between the back of the rig and a "disconnect" point I have that I can easily reach. I'm thinking that this piece won't cause much of a problem. So what I'm getting from everyone is to go with a section of 400UF between the antenna and the preamp and the just the regular 400 down into the shack. I think that should certainly be better than what I have now anyway. Any further comments? Tnx and 73, Michael