Topband: Vertical Antenna on a cliff above the Sea

[Tim Shoppa]

Many DXpedition organizers on oceanfronts speak highly of vertical dipoles
or arrays of vertical dipoles for 40M/30M/20M. I'm not sure I've ever seen
any of these have the advantage of a cliff to do something for 160M.

I myself have been experimenting with vertical moxons on 20M, the bottom of
which is not much above ground level, including EZnec modeling, looking for
a good west-facing antenna with well-defined TOA for domestic contesting.

Tim N3QE

On Thu, Dec 3, 2015 at 7:07 AM, Robb Webb Proprietor of Robb Webb
Photography <robb at robbwebbphotography.co.uk> wrote:

> Good day fellow Topband Experimenters.
> When it comes to antennas I am a keen experimenter but technically a suck
> it and see merchant rather than a design pro so I ask for your expert
> opinions.
> I live near a high cliff overlooking the sea. The cliff faces south, is a
> good 100ft high and is made up of mud and clay that over the years has been
> collapsing into the sea. I am considering mounting my Topband dipole as a
> vertical antenna above the cliff edge with the ground portion of the
> antenna going down the cliff edge below the vertical portion. I'm aware I
> may need to add radials but is there anything else I should need to
> consider. This is in preparation for the Boxing Day Stew Perry contest.
> Thanks for your help.
> Robb
> G0URR
>
>
> Robb Webb Photography
> Bringing Photography to life
> Mobile: 07891 575892
>
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