I had the same problem here with a TH-3.
I found the traps had become full of stuff, and rain water leaked into them
and made a mess.
Probably the 10 meter traps are working OK, but the other ones are bad. I
had to take the traps apart and clean the gunk out of them. 73
> Hi Guys,
> This has nothing particularly to do with TOWERS, per se, but I'm wondering
> if anyone reading this might have an idea, or two (it'll require CLIMBING
> the tower here in any event, I'm sure!).
> Specifically, I have a Hygain TH3 - Mark III 3-element tri-band yagi at
> here that has basically been idle, as I concentrated my efforts on the low
> bands for some 4 years now. Anyway, I re-discovered 10-meters with the
> inordinately high sunspot count of late, and pressed the yagi into service
> there with stellar results.
> Inspired, I next tried the antenna on both 20- and 15-meters, but was
> shocked to see the SWR inordinately high right across each band...
> Obviously something up there has gone awry in the preceding years---but
> is it still A-OK on 10-meters...?
> Thanks in advance, with my vy
> ~73~ de Eddy VE3CUI - VE3XZ
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