[Lf] Antenna]

[Andre' Kesteloot]

Mike Dennison wrote:

> > >From N8BKR
> >
> >  The top hat consists of eight 20 foot 1.25
> > inch diameter aluminum tubing mounted on two plywood disks.  I have tested this
> > antenna an it works very well.   This antenna cost me about $1000.00 to build
>
> That's very expensive plywood!
>
> Seriously, this type of antenna would be very efficient for its physical size as
> the coil is high up and the capacity hat is very low loss. However, being small,
> the ground losses will be high, so it is unlikely to outperform anything that has
> a higher radiation resistance, such as a T or L with 40m or more of top wires.
>
> Mike, G3XDV (IO91VT)
> http://www.lf.thersgb.net