[Lf] LF: Loading coils.]

[Andre' Kesteloot]

Dave wrote:

> Dear all.
>
> It was a sunny afternoon ( honestly! ) so I thought I would compare a few
> loading coils on 136. Theory states that most losses are in the earth system
> and losses in the coil would have to be pretty big to make a difference.
>
> I tried three coils:
> My usual coil    380mm dia    500mm high    4mm o.d. wire
> My /P coil        200mm dia    210mm high    1.25mm o.d. wire
> Ex Decca        810mm dia    210mm high    4mm o.d. litz wire
>
> Guess what?
> No difference at all!
> At the test power, about 800W, I got exactly the same aerial current in each
> case.
>
> So there.....
>
> 73. Dave G3YXM.