[Hallicrafters] Antenna issues and such

[Moe Fretz]

Antenna tree try this link.

http://www.rexresearch.com/squier/squier.htm

On Mon, Oct 6, 2008 at 7:59 PM, Carl <km1h at jeremy.mv.com> wrote:

>
> ----- Original Message ----- From: "Mike Everette" <radiocompass at yahoo.com
> >
> To: "rbethman" <rbethman at comcast.net>; <hallicrafters at mailman.qth.net>;
> "Carl" <km1h at jeremy.mv.com>
> Cc: "Jim Brannigan" <jbrannig at optonline.net>
> Sent: Monday, October 06, 2008 6:15 PM
> Subject: Re: [Hallicrafters] Antenna issues and such
>
>
>  All right...
>>
>> If you have read my posts, you will note that I didn't say it only had to
>> be done one way.  I said there is a right way to do things.
>>
>
>
> And you insulted anyone that did something else.
>
>
>
>> If you do things that fly in the face of the fundamental laws of
>> electricity and physics, I said, they may have unintended consequences that
>> are not good; and those who do so proceed at their risk.  With proper
>> understanding and a sound knowledge base, you can take "the ideal" and adapt
>> it to your circumstances.  That's what experimentation is about.  That's how
>> you learn.
>>
>
>
> Thank you teacher
>
>
>
>> But holding pseudoscience, urban legend, wishful thinking, etc up as
>> something that can be counted upon... that's not good.
>>
>
> Agree
>
>
>
>> Now, I have worked some pretty good DX on 6 meters using about 5 feet of
>> clip leads stuck in the coax connector of an FM rig, when I observed a
>> phenomenal band opening one afternoon while the radio was on the workbench
>> away from a "proper" antenna.  I have worked over 2000 miles on 2 meters
>> using a ground plane made from an SO-239 and five pieces of coathanger wire.
>>  But the antenna theory here was actually sound; a quarter wave, fed at a
>> low impedance point by a low-impedance source.
>>
>
>
> Anything will radiate a signal and if the band is hot you will work
> somebody.
>
>
>
>> I have built a superheterodyne receiver on a breadboard, using cardboard
>> tubing for coil forms, and even made my own resistors using carbon from
>> batteries stuffed into ditchbank reeds' and a similar transmitter with the
>> VFO tank stuffed into a coffee can (which makes a pretty darn fine
>> enclosure), and Coke bottles for insulators.  It worked pretty well, even
>> loading a single-wire-fed Windom that was more-or-less a half wave long on
>> 40 meters, about 15 feet off the ground.  It even worked quite a few
>> Europeans.
>>
>
>
> Whatever turns you on I guess
>
>
>
>
>> But when I tried loading a half wave dipole on the even harmonics, using
>> ANY transmitter, I found out that it does not do so well.  Not well at all.
>>  I made a contact or two but they were few and far between; and it was
>> frustrating.  Why?  I did some studying.  I did some experimenting.  I've
>> built, used and learned from a LOT of HF antennas, both fixed and mobile.
>>  And I'll tell you a secret.
>>
>> The experts  -- those JERKS (?) -- have it right.  That stuff in all those
>> books is true.
>>
>
>
> I wasnt refering to the experts
>
>
>
>
>> It does not HAVE to be perfect; but you do need to try to conform to the
>> science as close as possible if you want decent results.
>>
>
>
> As close as possible only works in horseshoes and hand grenades.
>
>
>
>
>> In an emergency, or if you are being chased by the Gestapo, Kempeitai or
>> KGB,  you do whatever you can with whatever you have, however you can do it.
>>  No argument there.  ANY RF out in such circumstances is better than
>> nothing.
>>
>> Now I really have said all I'm going to say.  Please take your flame
>> throwers back to eHam.net !
>>
>
>
> Never been there, sounds like you have experience with it.
>
>
>
>> In conclusion, I would also encourage you to obtain a copy of "A Course in
>> Radio Fundamentals" or "Understanding Amateur Radio," both by George Grammer
>> (yeah, he's one of them EEEE-vill ARRL folks) and do some reading, and
>> experimenting.  You might enjoy it.
>>
>
>
> Those came along 20 years after I was licensed. I preferred reading his
> actual articles in the 30's and 40's QST's I bought by the year in old book
> stores in the 50's.
>
> Starting off homebrewing a 4 tube regen at 13, Novice at 15 and 55 years
> later Im still building.
> Getting a MSEE has helped me understand how much I can deviate from the
> gospel without sacrificing too much performance.
>
>
>
>> And yes, I would be hard put to understand how the US Military is using
>> trees for antennas.  Sounds a lot like pseudoscience.  But I'd like to know
>> more about it.  Please send me a link or two or three.
>>
>
>
> Gee, I thought you understood about search engines. There has even been
> write ups in your favorite rag, QST.
>
> Carl
> KM1H
>
>
>
>
>> 73
>>
>> Mike
>> WA4DLF
>>
>>
>> ______________________________________________________________
>>
>>
>>
>> ______________________________________________________________
>>
>>
> ______________________________________________________________
>



-- 
Moe Fretz
Collection and Preservation
Of Canadian Tube Radios,
Communication Equipment,
Vintage Ham gear and Military Radios.

Don't crush them ---- Restore them.


Ontario Canada
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://mailman.qth.net/pipermail/hallicrafters/attachments/20081006/05b1e5a5/attachment.htm