A Paper Clip for 160 meters??
 

I came across this web site (http://k9erg.tripod.com/theory.htm) and he
says that if properly matched, you could load up a paperclip on 160
meters and it would work. I'm not so certain, since this thing should
be so full of capacitive reactance that the losses in the matching
network should be astronomical.

Any thoughts?

Depends on what you mean by "works". Will it load up and radiate? Yes.
Will anyone know it is radiating? No.

jimbo

Jayson Davis wrote:

I came across this web site (http://k9erg.tripod.com/theory.htm) and he
says that if properly matched, you could load up a paperclip on 160
meters and it would work. I'm not so certain, since this thing should
be so full of capacitive reactance that the losses in the matching
network should be astronomical.

Any thoughts?

"Jayson Davis" wrote in message
...

I came across this web site (http://k9erg.tripod.com/theory.htm) and he
says that if properly matched, you could load up a paperclip on 160
meters and it would work. I'm not so certain, since this thing should
be so full of capacitive reactance that the losses in the matching
network should be astronomical.

Any thoughts?

He only said it would radiate all the power fed to it. Unless well shielded
the matching would radiate much more power than the paper clip. Also it
would probably loose about
99 & 44/100 % of the power in the matching network. Also should need a
good ground system :-)

Jayson:

Take a look at this page:
http://www.antennex.com/preview/monopole.htm

While not exactly a paperclip, a twelve foot ant on 160 meters is an
interesting toy...

Warmest regards,
John

"Jayson Davis" wrote in message
...

I came across this web site (http://k9erg.tripod.com/theory.htm) and he
says that if properly matched, you could load up a paperclip on 160 meters
and it would work. I'm not so certain, since this thing should be so full
of capacitive reactance that the losses in the matching network should be
astronomical.

Any thoughts?

On Mon, 23 May 2005 18:46:33 -0400, Jayson Davis wrote:

I came across this web site (http://k9erg.tripod.com/theory.htm) and he
says that if properly matched, you could load up a paperclip on 160
meters and it would work.

For selected, narrow definitions of "work".

Jonesy W3DHJ

Jayson Davis wrote:
I came across this web site (http://k9erg.tripod.com/theory.htm) and he
says that if properly matched, you could load up a paperclip on 160
meters and it would work. I'm not so certain, since this thing should
be so full of capacitive reactance that the losses in the matching
network should be astronomical.

Any thoughts?

It's a play on words. If you cannot get the power into
the paper clip, it is not "properly matched". Ergo, a
it is impossible to "properly match" a paper clip on 160m.
--
73, Cecil http://www.qsl.net/w5dxp

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On Mon, 23 May 2005 22:09:24 -0500, Cecil Moore
wrote:

Jayson Davis wrote:
I came across this web site (http://k9erg.tripod.com/theory.htm) and he
says that if properly matched, you could load up a paperclip on 160
meters and it would work. I'm not so certain, since this thing should
be so full of capacitive reactance that the losses in the matching
network should be astronomical.

Any thoughts?

It's a play on words. If you cannot get the power into
the paper clip, it is not "properly matched". Ergo, a
it is impossible to "properly match" a paper clip on 160m.

Well, suppose that it "could" be done.
Take a large paperclip and stretch it
out to its full 4-inch length and note
its 0.05-inch diameter. Too lazy to
dig out my Kraus or Jasik, I plug those
numbers into EZNEC (it complaining loudly
all the while about minimum segment
length) and come up with a radiation
resistance of 0.0001818 ohms when feeding
the stretched-out paperclip as a monopole
against a perfect ground on 1.9 MHz.

Now, I want to run my 1500-watt ham rig
into the paperclip and get efficient
radiation. To do this requires that I
pass 2872 amps of RF current into the
base of the 0.05-inch diameter paperclip.

I think I see a problem here.....

k7jeb

"K7JEB" wrote in message.

Well, suppose that it "could" be done.
Take a large paperclip and stretch it
out to its full 4-inch length and note
its 0.05-inch diameter. Too lazy to
dig out my Kraus or Jasik, I plug those
numbers into EZNEC (it complaining loudly
all the while about minimum segment
length) and come up with a radiation
resistance of 0.0001818 ohms when feeding
the stretched-out paperclip as a monopole
against a perfect ground on 1.9 MHz.

Now, I want to run my 1500-watt ham rig
into the paperclip and get efficient
radiation. To do this requires that I
pass 2872 amps of RF current into the
base of the 0.05-inch diameter paperclip.

I think I see a problem here.....

k7jeb


A Lightbulb!

Adair -KD5DYP

You're correct. The losses in the paper clip itself would be huge, due
to the resistance of the conductor in conjunction with the huge amount
of current which would flow for a given amount of applied power.

That web page has some factual information, but unfortunately it's
interspersed with a nearly equal amount of misinformation. Readers of
web pages should use caution in believing what they see.

Roy Lewallen, W7EL

Jayson Davis wrote:

I came across this web site (http://k9erg.tripod.com/theory.htm) and he
says that if properly matched, you could load up a paperclip on 160
meters and it would work. I'm not so certain, since this thing should
be so full of capacitive reactance that the losses in the matching
network should be astronomical.

Any thoughts?

Here is a phrase I have found to be appropriate from time to time:

ANYTHING WILL RADIATE, IT'S THE DEGREE OF EFFICIENCY THEREOF.

Dan/W4NTI

"Jayson Davis" wrote in message
...

I came across this web site (http://k9erg.tripod.com/theory.htm) and he
says that if properly matched, you could load up a paperclip on 160 meters
and it would work. I'm not so certain, since this thing should be so full
of capacitive reactance that the losses in the matching network should be
astronomical.

Any thoughts?