[Mobile-Portable] Outbacker?

[qrv at kd4e.com]

Every antenna is affected by multiple variables - failure to
understand them can make a good antenna perform poorly and
a good understanding can help a weak antenna design perform
better.

In addition to the near-field environment is the broader
geographical environment.

e.g. a simple dipole with a clear broadside exposure to the
Atlantic Ocean on a bay may have extraordinary performance
to Europe and Africa while the same antenna further from
the ocean may be mediocre.

The mounting location of a mobile antenna, details of the
mounting, and the structure of the vehicle (be aware of more
plastic - a poor groundplane) and more electronics (more
rfi).

 > KA4INM wrote:
> On 01/24/14 02:00, Dick Flanagan wrote:
>> I had one.  They were a good example of "just because it resonates
>> doesn't mean it radiates."
>
>    I teach a series of lectures called:   "How antennas work."
> I teach anything conductive can radiate some and it is harder to make it
> stop radiating that to make it radiate.
>
>    I have a DX friend that has his DXCC 100% from using an "Outbacker"
> on a tiny ground mounted tripod with no radials (with 100 Watts) with
> 100' of RG-58 that he ran out between the trees in the yard of his first
> floor apartment after dark.  So they must leak some.


-- 

David (NOT Dave) Colburn, KD4E - Nevils, Georgia USA

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