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Old June 6th 09, 06:07 PM posted to rec.radio.amateur.antenna
Art Unwin Art Unwin is offline
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First recorded activity by RadioBanter: Mar 2008
Posts: 1,339
Default "Large" volume antenna

On Jun 6, 11:35*am, JIMMIE wrote:
On Jun 5, 11:26*pm, tom wrote:



Art Unwin wrote:
Just measured the SWR using mfj 259b where it measures 2:1@2 Mhz with
slight variences as the frequency increases. The meter only goes to
175 Mhz so I cannot measure further. How ever the varience is ever
decreasing so I would say in the Ghz range it should be linear at
something less than 2:1 So a normal transmitter will not require an
external tuner as frequencies are *scanned. Real neat. Weight is in
the order of 6.5 lbs and a weather balloon is capable of lifting 7 lbs
so that is something to contemplate this summer for top band. Have the
tilt set for approx 6 degrees which puts me above ground clutter and
will leave it there to get some experience on different bands and
conditions.
Art


So why haven't you already used it on 160, 80/75, 60, 40, 20, 17, 15,
12, 10, 6, or 2 and told use about your results?


I am quite anxious to hear how well this works, because if it works
well, I will be one of the first to make one.


Please include signal reports from the station you work as well as
signal reports concerning other stations they work.


A very good frequency to try this on would be 14.300, as they are quite
good net control operators. *If you work one of the 14.300 net controls,
please include their callsign and the time you worked them.


tom
K0TAR


Tom, he is never going to try the antenna or admit it doest work. Heck
I built the stupid thing knowing it was *a dummy load and a CBer's
joke just to say I built it. (I was also very *sick and bored at the
time). It doesnt work because the impedance of the antenna consist
primarily of ohmic resistance and dielectric losses. I doubt if he has
ever buit the damned thing .
*Giving that the design of his antenna is a known CBers prank, I
suspect Art comes from the same place.

*Unfortunately I also have known of someone else who behaves like Art.
He was truly a brillant person who repaired banks tabulating machines
back when they were all mechanical. He was brillant in more ways than
just mechanics, a true rennisance man if ever I met one. Then he had a
stroke. He latched on to this EXACT same "antenna" saying that he had
designed it even though I knew of its CB use years before he
discovered it. He used to be a good family friend until I showed him
his antenna did not work comparing it side by side to a simple dipole.
For Arts sake I hope he truly is just a prankster. I wouldnt wish the
changes I saw on the poor guy I knew on anyone.

I know I have seen the "antenna" before I knew it as a CB joke. I am
pretty sure *it was in my grandfathers collection of radio books which
dated from the 20s to the 40s used as a dummy load.

Jimmie


Jimmie
I hate to tell you but the antenna that you made was a result of
various statements where it would seem that the main object was to
proof me in error. So I gave a description of such an antenna to
satisfy the desires of my critics in the hopes that they would be
content.
That antenna is not the one I use . Sorry you went to a lot of work
for nothing.
Art