Hi David, My suggestion is a coaxial trap or possibly a series LC to deck (use a trimmer C). The insertion loss will be minimal. A single trap had little effect on the feed Z as shown on my Tx but ideally a second one about lambda/4 at 145MHz further down the feeder will offset the effect at 145. I'll be interested to see how it works on the harmonic.
Regards 73 Alan G0HIQ > Message: 3 > Date: Wed, 1 Feb 2006 12:07:19 +0000 > From: David Pratt <[EMAIL PROTECTED]> > I am having a problem with 5th harmonic radiation from my > XV144 transverter. I have found that I am causing TVI to > the UK analogue Channel 51 (711.25MHz) and digital Channel > 52 (719.25MHz). Other TV channels are free from interference. > 73 de David G4DMP ___________________________________________________________ Yahoo! Photos NEW, now offering a quality print service from just 8p a photo http://uk.photos.yahoo.com _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com