big coil antennas exposed

[Se7en]

i thought this was kinda cool, was searching for an old oil can antenna. i hear with enough watts the oil cans can glow from the power.....

---> Copper Electronics, Inc. - Big Coil antennas EXPOSED!

 

[unit_399]

I thought that it was well written, but I wish that "tech 883" been less ambiguous and more definitive about his measurement techniques. Statements like," With all the measurements using our 1/4 wave whip in hand, a formula is created that establishes our 9-foot antenna as the benchmark, and it is entered into the computer and normalized to 100%. HUH ??? I'd like to know more about this formula and computer program. Other measuring techniques, especially the one for measuring the rf current above and below the coil would be good to know. I'm not complaining here, it's just that this stuff interests me and knowing about it would add credibility to these tests.

- 399

 

[pro151]

Now if you want to start a discussion (or argument) about antenna coils, just post this link.

Mobile antennas, short verticals, loading coil loss,and loading coil current

Oh crap! Wait a minute, I just posted it.

Silly me!

 

[hotrod]

I thought that it was well written, but I wish that "tech 883" been less ambiguous and more definitive about his measurement techniques. Statements like," With all the measurements using our 1/4 wave whip in hand, a formula is created that establishes our 9-foot antenna as the benchmark, and it is entered into the computer and normalized to 100%. HUH ??? I'd like to know more about this formula and computer program. Other measuring techniques, especially the one for measuring the rf current above and below the coil would be good to know. I'm not complaining here, it's just that this stuff interests me and knowing about it would add credibility to these tests.

- 399

go to copper.com and ask him . hes a very smart man im sure he will tell ya.

 

[BOOTY MONSTER]

here's your prize 151

 

[pro151]

here's your prize 151

As Elvis would say..............Thankya. Thankya very much.

 

[AudioShockwav]

Nothing wrong with that link Booty, if fact there is some good reading to be had on that site.
It is a bit deep on the Technical, but if one can get a grip on it, there is a lot of of info there.

73
jeff

 

[hotrod]

Nothing wrong with that link Booty, if fact there is some good reading to be had on that site.
It is a bit deep on the Technical, but if one can get a grip on it, there is a lot of of info there.

73
jeff

im glad to see TRUE results not just s-units on a radio .the results arent
as big as some may think

 

[BOOTY MONSTER]

Nothing wrong with that link Booty

i know . was playing with 151 ..... he's my sweetie pie :

 

[RatsoW8]

go to copper.com and ask him . hes a very smart man im sure he will tell ya.

LOL

 

[gamegetter]

Nothing wrong with that link Booty, if fact there is some good reading to be had on that site.
It is a bit deep on the Technical, but if one can get a grip on it, there is a lot of of info there.

73
jeff

I am trying to read the w8ji article but it going to take a while...

Why does the skipshooter 7 foot stand out? It is entirely a coil. Not just for audio shockwave by the way.

 

[AudioShockwav]

I have never run one, but just looking at how it is made, I would say length.
I do not know much about how it is constructed other that a typical loaded fiberglass whip, but total length is also important in how well a antenna works.

Any one here run one?



73
jeff

 

[VA3ES]

I have never run one, but just looking at how it is made, I would say length.
I do not know much about how it is constructed other that a typical loaded fiberglass whip, but total length is also important in how well a antenna works.
Any one here run one?
73 jeff

My buddy Mike has one. Nicely constructed, a good solid wire up most of the length, then several turns near the top, plus a short adjustable stinger. Approximately 7' tall. I believe the fact that it's a sort of almost "top loaded" antenna makes all the difference.

 

[Se7en]

still haven't got that answer if a oil coil antenna can glow with the right amount of wattage>?

 

[Robb]

still haven't got that answer if a oil coil antenna can glow with the right amount of wattage>?

If there is enough wattage going through that coil; the coil won't glow.
It will explode - instead.