Hi Jim,
Thanks for the suggestions, when I get a chance I'm going to lower the
dipole and check for oxidized connections, 'dry' joints etc. The antenna has
been up for a few years and could probably benefit from fresh connections.
--
73 Warren K2ORS/WD2XGJ/WD2XSH/23/WE2XEB/2
FN42hi
http://www.w4dex.com/wd2xgj.htm
-------------- Original message ----------------------
From: "James Moritz" <[email protected]>
> Dear Warren, LF Group,
>
> Assuming you are using the same loading coil as before, another possibility
> is that the loss resistance of the antenna has increased a lot - with a
> tapped loading coil there is a definite upper limit to the resistance which
> can be matched, which depends on the coil geometry. But it would probably
> still need something drastic to happen to the antenna to produce a large
> increase in Rloss, e.g. bad connection, etc.
>
> Cheers, Jim Moritz
> 73 de M0BMU
>
> ----- Original Message -----
> From: <[email protected]>
> To: "rsgb lf reflector" <[email protected]>; "rsgb lf reflector"
> <[email protected]>
> Sent: Wednesday, June 20, 2007 11:28 PM
> Subject: LF: LF Vertical Antennas problem...
>
>
> > Hello the list,
>
> > Now I find that I cannot resonate the antenna - I can't eliminate the
> reactance no matter what the setting of the tap or the coil. The best I can
> do is an swr of 1.7:1 and at least 40 ohms of reactance. I have tried
> changing coils and still the problem persists. If I do transmit this way,
> my signal seems to be down at least 10dB below what it was when the antenna
> resonated properly. Any thoughts?
> >
> >
> > --
> > 73 Warren K2ORS/WD2XGJ/WD2XSH/23/WE2XEB/2
> > FN42hi
> > http://www.w4dex.com/wd2xgj.htm
> >
> >
>
>
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