[Elecraft] dipole antenna efficiency

[David Woolley]

bill KE5KWE wrote:
> Let me bring this down to the practical world.  My QTH is a 42.5 ft. Travel
> Trailer which is insulated from the ground by 6 Rubber Tires and Air.  It

Is it connected to the mains electricity supply?  If it is, you will 
probably need to consult someone familiar with your local electrical 
codes as, at least in the UK, rules for such structures are much 
stricter than for permanent buildings. At the very least, that will 
affect if and how you provide an RF ground.

You haven't actually specified what the constraints on your antenna are. 
  Are you constrained to not having an external antenna?  Are  you 
allowed one but it has to fit within the area of the trailer.   How high 
above the trailer can you go?  Are you allowed to install ground rods 
(electrical codes apart)?

Without either an external antenna or a ground connection, you are 
probably lost.

-- 
David Woolley
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