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
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