Yes Cecil, it is a "billy cart" antenna, and I guess that lots of antenna
would outperform it - but I have to keep it within the criteria:
1) transportable 2) light weight 3) ground independant 4) to be erected on a
caravan in various caravan parks without upsetting everybody 5) quick to set
up and pull down 6) gives me a few bands to play with 7) possibly even work
to some degree :-)
I will take Owen Duffy's advice to reduce RF getting back to "the caravan
shack", then continue to experiment. At this stage it seems to receive very
well, but waiting to get answers to my CQDX.

73 de VK2DQC "portable anywhere in Aus."


"Cecil Moore" wrote in message
. com...
Allan Jeal wrote:
After trying verticals, loops and dipoles I was ready to give up. Then I
remembered a thing called a Vipole that was lying on the garage rafters.
I paid hundreds of dollars for it but I could never make it work. It is a
V with two lightweight fiberglass whips that each have an inductance coil
half way along their length. They are marked 7Mhz (12' roughly) and 14Mhz
(9'6" roughly). (((The original design stipulated that the whips feed
into a Balun and then an UnUn transformer, and then use coax down to the
rig))).

OK, I think I've got it. Although the autotuner will probably
tune the system, the 20m element will probably be an inadequate
counterpoise on 40m and the 40m element may develop a lossy
self-resonance below 14 MHz. A 40 ft. dipole with the tuner
in the middle would probably outperform what you have in mind.
But that's just my opinion which is what you asked for. Don't
let me discourage you from experimenting.
--
73, Cecil http://www.qsl.net/w5dxp