I had one of these beasts for many years.
Are you using the stock Telrex balun?
Open it up and check for water damage.
Try varying the coax length to the transmitter on
10m. If the resonant frequency moves, you probably
need a new balun.
After you do these thing, let me know, and I'll tell you more!
(((73)))
Phil, K5PC
>
>Hi Folks,
>
>Please put on ur thinking caps. I have the TB6EM down for annual repair,
>adjustments etc. The useable portion on 15m has been a bit high in the
>band. 10m has been a real pain. I have a minor dip to 1.5 : 1 at about
>29.500. I found the main dip at 27.680, just right for the outlaws but it
>sucks when trying to work Mount Athos. I tried adjusting the fed element
>but only really made a difference on 15m. So I set 15m for the best, 20m is
>fine. I had the idea that maybe I could shift the passband on 10m if I make
>an adjustment to either the 1st director or the reflector both of which are
>10m only elements. It was my intention to leave the 2nd director alone as I
>did not wish to effect F/B or anything else on 15 or 20m.
>
>Ideas anyone? I could sure use a bit of help on this one. Yeah I know, I
>could put up another antenna for 10m. What's the SWR on 10? 1.5:1 at
>28.000 climbing to 3:1 and then a minor dip to 2:1 at 29.500.
>
>Thanks es 73
>Greg K9ZM
>
>
>--
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>
>
--
FAQ on WWW: http://www.contesting.com/towertalkfaq.html
Submissions: towertalk@contesting.com
Administrative requests: towertalk-REQUEST@contesting.com
Problems: owner-towertalk@contesting.com
Search: http://www.contesting.com/km9p/search.htm
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