Effective length braid dipole leg? 2
 

http://www.dxzone.com/cgi-bin/dir/jump2.cgi?ID=9293

I've seen the one made with coax, but can't find it in my files or on the
net, maybe not looking hard enough. This one is so easy and it is very
portable for field use. KD0FGX

Effective length braid dipole leg? 2
 

Rollie wrote:
http://www.dxzone.com/cgi-bin/dir/jump2.cgi?ID=9293
I've seen the one made with coax, but can't find it in my files or on the
net, maybe not looking hard enough. This one is so easy and it is very
portable for field use. KD0FGX

IMO, it's hard to beat my "Pico-J" made with 300 ohm twinlead.
--
73, Cecil http://www.w5dxp.com
"According to the general theory of relativity,
space without ether is unthinkable." Albert Einstein

Effective length braid dipole leg? 2
 

Cecil Moore wrote:

...
IMO, it's hard to beat my "Pico-J" made with 300 ohm twinlead.

Somehow, I have missed the importance of the "pico-j" ... how come no
link to some info on your webpage (I am looking at: http://www.w5dxp.com)?

I just might pickup a hunk of twinlead (or space/tape a couple of wires
together)

Regards,
JS

Effective length braid dipole leg? 2
 

John Smith wrote:
Somehow, I have missed the importance of the "pico-j" ... how come no
link to some info on your webpage (I am looking at: http://www.w5dxp.com)?

If I remember correctly, it came from "Antennas West" who
are no longer in business.

I just might pickup a hunk of twinlead (or space/tape a couple of wires
together)

It actually seems to be a Zepp, rather than a J-Pole.
1/4WL feeding 1/2WL.
--
73, Cecil http://www.w5dxp.com
"According to the general theory of relativity,
space without ether is unthinkable." Albert Einstein

Effective length braid dipole leg? 2
 

Cecil Moore wrote:

...
It actually seems to be a Zepp, rather than a J-Pole.
1/4WL feeding 1/2WL.

OK, we have had a similar discussion before, part of your text he

"In much the same way a Zepp or a J-Pole is not a 3/4WL
radiator even though they are 3/4WL long, a gamma match
on a base-fed 1/2WL vertical doesn't yield a 1/2WL
electrical radiator. For this reason, the length of a
gamma match should be considerably less than a wavelength.
A good rule of thumb is probably in the ballpark of less
than ~6% of a wavelength. Your idea seems to require about
16% of a wavelength."

I remember ...

Regards,
JS