> Here in Sydney Australia we have (had) a CFA installation in commercial
> use. I have done relative FS measurements (single point) at a distance
> of 60Km and can report that the CFA antenna is NOT working as the
> inventors say it will.
In my early days of Ham radio I visited a radio ham who used one of
those old metal spring double beds as an antenna. The bed was
connected to the hot end of the ATU and the other to the water pipe
of a sink that was also in the room. As I recall he seemed to work
around the UK on 80m using it. I called it the Sleep Mode Antenna (SMA).
Many years ago, RadCom (actually it was the RSGB BUlletin in
those days) ran a superb April spoof. It described an antenna
comprising two circular plates joined by vertical bars like a cage.
The clever bit was that the bars were spaced logarithmically from
each other. More complex calculation went into where to attach the
feedpoint - a single wire - off centre of the lower plate.
This was all fascinating and believable until you got to the final
sentence whch said that for best results the single wire feeder
should be vertical and at least a quarter wavelength, tuned against
a good ground.
This was probably aimed at a popular short loaded antenna of the
day called a Joystick, but which was also called the VFA (variable
frequency antenna).
Mike, G3XDV (IO91VT)
http://www.dennison.demon.co.uk/activity.htm
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