Trev,

As Cecil says, a wider than expected bandwidth in an antenna of given
size, is an absolutely sure sign of greater loss somewhere in the
wideband antenna system.

Unless one knows how the thing is supposed to work, which with EH and
CFA is not very likely, there's no indication of where the loss may be
except from a visual examination. If there are any coils of
relatively thin wire, either in the antenna or tuner/phaser, then
that's a good pointer.

But experimenting to improve the bandwidth*efficiency product, one way
or the other, will not get you very far. As one goes up the other is
sure to go down. It's not difficult to guess which you would prefer.

A magloop. with a single turn coil of copper pipe at the lower
frequencies, is far and away the most narrow banded and therefore the
most efficient of all the small antennas. Furthermore it has a
built-in, equally very low loss tuner.
----
Reg.

======================================

"Trevor Day" wrote in message
...
In message , Reg
Edwards writes
Trev,
Performance is no better and no worse than what can be expected
from
any other sort of antenna of about the same physical size and the
same
length of feedline. Try it and see.

I once worked 3 miles on SSB, on 160m, in broad daylight, with
about
10 milliwatts, on 8 feet of wire lying on the ground, thrown out of
a
downstairs window. The ground connection was via 10 feet of wire
from
a domestic gas pipe. But I don't brag about it. The credit all
goes
to Clerk Maxwell.

As Clerk implied, any bloody thing works.
----
Reg.

Thanks Reg,

I expect you are quite right, but I am still puzzled about the
bandwidth
aspect. Roy states that this is due to losses in the matching
system,
in which case would it be possible to 'detune' a similar small
antenna
and get similar results in that regard. If I can actually do that
and
see the result, then I will be happy :-)

Trev
--
Trevor Day
UKSMG #217
www.uksmg.org