If you have an open or short in the feedline you can find it with the mFJ.
It has a cable length function that will do it.
73
Gary K4FMX
> -----Original Message-----
> From: TowerTalk [mailto:towertalk-bounces@contesting.com] On
> Behalf Of Dave Thompson
> Sent: Sunday, July 19, 2020 9:58 AM
> To: towertalk@contesting.com
> Subject: Re: [TowerTalk] 40 Meter Beam problem
>
> Thanks for all the replies. My MFJ-259B does not have a TDR.
> When putting up the beams 3 years ago I did have a problem
> with a bad double connector. Replacing it cured the problem.
> I plan on replacing the balun with the coax type balun.
> This was on the beam for over 20 years with no problems.
>
> I used binoculars to look at the feed point of the beam with
> no problem found from the ground.
>
> I plan on contacting a local tower guy next week.
>
> 73 Dave K4JRB
>
>
> -----Original Message-----
> >From: Dave Thompson <thompson@mindspring.com>
> >Sent: Jul 17, 2020 10:47 AM
> >To: towertalk@contesting.com
> >Subject: [TowerTalk] 40 Meter Beam problem
> >
> > Gang,
> >
> >My Cushcraft 2 el 40 went dead on me and after checking the
> coax it seems either the coax or balun may be bad.
> >
> >Is there a way to use the MFJ antenna analyzer to check the
> problem from the ground. The beam is mounted 10 feet above
> the TEnnedyne T-10 so its not easy to physical check out. I
> will probably have to get a tower professional to do the work.
> >
> >73 Dave K4JRB
> >_______________________________________________
> >
> >
> >
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> _______________________________________________
>
>
>
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