Antenna physical size
 

"Art Unwin" wrote in message
...
On Apr 4, 4:01 pm, wrote:
On Apr 4, 9:22 am, Art Unwin wrote:



Two perfect examples of a closed mind, but not to worry
enlightenment will be along shortly.

Derek

I already own a flashlight. Several in fact.





I thought I would share with you my readings on the 160 M band
They are in order as follows Freq, resistance, reactance swr

1.8 105 0 2.1
1.81 105 0 2.0
1.82 105 0 2.0
1.83 105 0 2.0
1.84 102 0 2.0
1.85 98 0 1.9
1.86 92 0 1.8
1.87 88 6 1.7
1.88 83 7 1.7
1.89 84 8 1.7
1.9 81 12 1.6
1.91 78 13 1.6
1.92 75 12 1.5
1.93 72 13 1.5
1.94 68 11 1.4
1.95 67 10 1.4
1.96 66 10 1.3
1.97 64 9 1.3
1.98 62 9 1.3
1.99 62 9 1.3
2.0 62 7 1.2

Those you are familiar with antennas will see that the above figures
in no way
represent those of a dummy load

I've seen light bulbs act the same way
when rf was fed to them.
How many people do you know that use a light
bulb as an antenna?
I used one as a dummy load when I was a novice.
It was enlightening, I have to admit that... :/

While listening to Europe coming in with 5/9 signasl,
I thought that everybody should be using "dummy loads"
Art

one anecdote does not a good antenna make.

Antenna physical size
 

On Apr 4, 5:51 pm, "Dave" wrote:
"Art Unwin" wrote in message

...



On Apr 4, 4:01 pm, wrote:
On Apr 4, 9:22 am, Art Unwin wrote:

Two perfect examples of a closed mind, but not to worry
enlightenment will be along shortly.

Derek

I already own a flashlight. Several in fact.

I thought I would share with you my readings on the 160 M band
They are in order as follows Freq, resistance, reactance swr

1.8 105 0 2.1
1.81 105 0 2.0
1.82 105 0 2.0
1.83 105 0 2.0
1.84 102 0 2.0
1.85 98 0 1.9
1.86 92 0 1.8
1.87 88 6 1.7
1.88 83 7 1.7
1.89 84 8 1.7
1.9 81 12 1.6
1.91 78 13 1.6
1.92 75 12 1.5
1.93 72 13 1.5
1.94 68 11 1.4
1.95 67 10 1.4
1.96 66 10 1.3
1.97 64 9 1.3
1.98 62 9 1.3
1.99 62 9 1.3
2.0 62 7 1.2

Those you are familiar with antennas will see that the above figures
in no way
represent those of a dummy load

I've seen light bulbs act the same way
when rf was fed to them.
How many people do you know that use a light
bulb as an antenna?
I used one as a dummy load when I was a novice.
It was enlightening, I have to admit that... :/

While listening to Europe coming in with 5/9 signasl,
I thought that everybody should be using "dummy loads"
Art

one anecdote does not a good antenna make.

I put that out to catch a juicy trout but instead I

captured two croutchy crabs

Antenna physical size
 

On Fri, 4 Apr 2008 15:15:51 -0700 (PDT), Art Unwin
wrote:

While listening to Europe coming in with 5/9 signasl,
I thought that everybody should be using "dummy loads"

Hi Arthur,

My pocket radio can do better than that. You haven't given us any
signal reports from other stations listening to you from Europe.

73's
Richard Clark, KB7QHC

Antenna physical size
 

On Apr 5, 10:40 am, "Jimmie D" wrote:
wrote in message

...



On Apr 4, 7:02 pm, "Dave" wrote:

You are thinking wrong.

you might as well plonk him, he is either a persistent troll or totally
convinced that only he has the proper view of the world. in either
case you
are fighting a losing battle.

Two perfect examples of a closed mind, but not to worry
enlightenment will be along shortly.

Derek

Enlightenment will surely come if Art connects that antenna to the KW amp he
claims to have.

Go back to Art discription of his antenna.IT sounds to me as if it evolved
from a double bazooka.

Make a bazooka antenna with these mods:
.
Forget about the ladder line part of the dipole and make it all like the
center coax section.

Replace the coax section with lamp cord

Now make it fit in a couple of shoe boxes by coiling it all up.

Isnt this a good discription of Art's antenna?

Jimmie

Oh my! My antenna has been revealed to allI .
You just can't stop progress from inquisitive eyes
Now Jimmy, go ahead and make that antenna
and surprise the World
Art

Antenna physical size
 

Art Unwin wrote:
On Apr 4, 3:24 pm, Michael Coslo wrote:
wrote:
On Apr 4, 7:02 pm, "Dave" wrote:
You are thinking wrong.
you might as well plonk him, he is either a persistent troll or totally
convinced that only he has the proper view of the world. in either case you
are fighting a losing battle.
Two perfect examples of a closed mind, but not to worry
enlightenment will be along shortly.
And always will be, just like modern washday miracles and Dishwashers
that don't leave spots on glasses. ;^)

An open mind does not mean suspension of all disbelief....

- 73 de Mike N3LI -

Mike, you asked for a lot of details about the antenna such
that I thought you were going to make one. What happened
I expected you to come forward with confirmation in a lot of areas!
I thought you were a doer not a talking head.

I'm indeed looking into this.

But sometimes I get a little interested when people invoke the "closed
mind" statement.

- 73 de Mike N3LI -

Antenna physical size
 

Art wrote:
"Oh my! My antenna has been revealed to all."

Size matters and so does the power fed to an antenna. The laws of
physics can`t be violated.

King Mimno & Wing say on page 300 of "Thansmission Lines Antennas and
Wave Guides":

"---a radio wave originates in a systematic mass movement of many
millions of electrons all guided in the same general path and executing
related motions."

Best regards, Richard Harrison, KB5WZI

Antenna physical size
 

Art wrote:
"Where must the "curl" vector be placed in general to justify the right
angle radiation statement that all your books apparently parrot?"

Look up divergence and curl for yourself as I have no special characters
on my keyboard and I am a lousy typist too. You can find what you seek
in the chapter on Maxwell`s equations in ITT`s handbook "Reference Data
for Radio Engineers" This starts on page 43-1 in my 5th edition.

No contradiction to Kraus or Terman is to be found. The right or left
hand rules are good. Magnetic lines of force encircle the current and
electric lines are perpendicular to them as they begin and end on the
wire in their radial attachments. Both fields are at right angles to
each other and both are also at right angles to the current flow.

There is no abberation for diamagnetic materials. The fields are the
same if the wire is lead instead of copper. Diamagnetic distortion is a
myth. Velocity and loss are hardly different. You need to coat the
conductor with a diecectric if you would get more wavelength in a given
length of wire.

Best regards, Richard Harrison, KB5WZI

Antenna physical size
 

Art wrote:
"But ham radio and the Navy have proved him (Terman) wrong with T2FD
testing."

Art has likely tried a VHF or UHF antenna by rotation within a linearly
polarized wavefront. If so, he has experienced cross-polarization and
noted about 20 dB loss when cross-polarized in the field.

My WW-2 navy ship used a Marconi (inverted L) antenna for HF
communications with a Collins TCS. A signal reflected by the ionosphere
gains random polarization in the process. The vertically polarized
Marconi does well with a ground wave over short distances even at HF
over sea water. We had no slopers. The VHF and UHF antennas were all
vertical whips to cover all azimuths. Art`s inclined antenna is in
general a myth.

For rntertainment, we had a broadcast receiver called the RBO. It too
used a Marconi antenna as all medium wave broadcasts are launched from
vertical antennas. It worked well as would be expected of a broadcast
receiver.

Best regards, Richard Harrison, KB5WZI

Antenna physical size
 

On Apr 14, 10:24 am, "Jimmie D" wrote:
"Jimmie D" wrote in message

...





wrote in message
...

On Apr 4, 7:02 pm, "Dave" wrote:

You are thinking wrong.

you might as well plonk him, he is either a persistent troll or
totally
convinced that only he has the proper view of the world. in either
case you
are fighting a losing battle.

Two perfect examples of a closed mind, but not to worry
enlightenment will be along shortly.

Derek

Enlightenment will surely come if Art connects that antenna to the KW amp
he claims to have.

Go back to Art discription of his antenna.IT sounds to me as if it evolved
from a double bazooka.

Make a bazooka antenna with these mods:
.
Forget about the ladder line part of the dipole and make it all like the
center coax section.

Replace the coax section with lamp cord

Now make it fit in a couple of shoe boxes by coiling it all up.

Isnt this a good discription of Art's antenna?

Jimmie

I had a couple of 100 ft rolls of speaker wire on cardboard reels so I
decided to connect them together as Art had described and they give VSWR
indication much as he described even if I stick them in a metal locker. This
may be just what a lot of hams are looking for as it is a very quiet
antenna.

Jimmie

g'day Jimmy

welcome to the minority and stand by for Richard to call you a
fool and stupid for listening to Art, I am sure you are the first
among many who will now build the antenna and find out for themselves
instead of listening to those who say if it is not in a book it cant
be done
well done.

Derek

Antenna physical size
 

On Apr 14, 11:50 am, wrote:
On Apr 14, 10:24 am, "Jimmie D" wrote:



"Jimmie D" wrote in message

...

wrote in message
...

On Apr 4, 7:02 pm, "Dave" wrote:

You are thinking wrong.

you might as well plonk him, he is either a persistent troll or
totally
convinced that only he has the proper view of the world. in either
case you
are fighting a losing battle.

Two perfect examples of a closed mind, but not to worry
enlightenment will be along shortly.

Derek

Enlightenment will surely come if Art connects that antenna to the KW amp
he claims to have.

Go back to Art discription of his antenna.IT sounds to me as if it evolved
from a double bazooka.

Make a bazooka antenna with these mods:
.
Forget about the ladder line part of the dipole and make it all like the
center coax section.

Replace the coax section with lamp cord

Now make it fit in a couple of shoe boxes by coiling it all up.

Isnt this a good discription of Art's antenna?

Jimmie

I had a couple of 100 ft rolls of speaker wire on cardboard reels so I
decided to connect them together as Art had described and they give VSWR
indication much as he described even if I stick them in a metal locker. This
may be just what a lot of hams are looking for as it is a very quiet
antenna.

Jimmie

g'day Jimmy

welcome to the minority and stand by for Richard to call you a
fool and stupid for listening to Art, I am sure you are the first
among many who will now build the antenna and find out for themselves
instead of listening to those who say if it is not in a book it cant
be done
well done.

Derek

g'day Jimmie

Miss spelt your name my apologies.

Derek