[Lowfer] PI now E-W

Thu, 31 Oct 2002 19:48:50 -0500

Thanks, Bill. I thought that would be the answer but, considering the ground
reflection is occurring anyway, I thought that the losses from the tin roof
might be offset by the fact that I might actually radiate something if the
building were not in the way.

> and end up with the first crossed field antenna that actually works!

A Crossed Field Antenna? What's that? Is it small enough to fit in my yard?

NO! NO! Just kidding!!!!!

Mike
wa1ptc

> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]]On Behalf Of Bill Ashlock
> Sent: Thursday, October 31, 2002 4:32 PM
> To: [email protected]
> Subject: RE: [Lowfer] PI now E-W
>
>
> Mike,
>
> >If we are ignoring the horizontal wires and using just the
> vertical >wires
> >for phasing, could I (theoretically) raise the loop so the >bottom
> >horizontal wire is just above the metal roof?
>
> The horizontal portions can't be neglected because there is a big
> doughnut-like field surrounding ALL portions of the loop wire (this seems
> like a broken phonograph record lately). Mess with this and you,
> first off,
> change the shape of this field, often lowering the Q of this
> one-turn coil
> (apartentely not in your case). Secondly, the field in the metal
> roof could
> have vertical components, causing a distortion of the vertically
> polarized
> field. .......but on the other hand you could have a reinforced vertical
> component and end up with the first crossed field antenna that actually
> works! .......... No, forget I said that!<G>
>
> Bill
>
>
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