--- In topband-helical@..., "manxmat" <manxmat@...> wrote:
>
> Hi folks,
>
> I have had a go with the helical - I'm not sure if it's my particular qth, or
how I had it mounted (in the trees), I had trouble trying to get it to resonate,
even with a couple of radials.
>
> I've had more success with my attempt at a GM0ONX trapped 'Inverted L' antenna
here:-
>
> http://www.users.icscotland.net/~len.paget/6_band_inverted_l_antenna.htm
>
> I have a weatherproof box where the coax enters, in here connection to the
radiating element and to a grounding rod with a couple of long radials run down
a large bank at one side of the house.
>
> The radiating element is suspended from trees at one side of the house.
>
> I'll often have a listen through the band, but mostly tx on data-modes (PSK) -
will have to drop in for a chat sometime!!
>
> Regards
>
> Matty
>
> MD0MAN
>


Hi Matty,
sorry you didn't have much luck with a helical antenna. I guess this
is proof that an antenna that works okay at one location, will not work okay at
another location.

just pleased you managed to get sorted with something for 160m . You could
always try placing the helical coil just above the ground & running the rest of
the antenna in Inverted L fashion.

This may or may not work. I hear this works for some & not others.

This is how I'm running my own antenna at the moment. I have found that in my
situation, the Helical in the air favoured the DX , while the Helical just above
ground favoured " Inter G "

I've also treat my antenna to a DC Grounded Matching Transformer .
This has reduced the background noise level & allowed the antenna to work all
bands from 160m to 10m . A tuner is required on most bands, but not all. My
antenna is just about resonant on 20m.


Regards,
Phil. m0vey