N8KDV wrote in message ...
Also, I'm afraid to point out that the
design pre-dates the John Doty concept. (as far as I know).

True. There was nothing really new in my design. I wrote up the design
because I hadn't seen a good clear explanation of nonresonant wire
antennas with effective common mode decoupling. The article has been
posted on several web sites and published in several newsletters:
people seem to find it helpful. But it doesn't represent an invention,
it's just a piece of writing.

John Doty
"You can't confuse me, but an unreliable news server can make posting
difficult!"

John Doty wrote:

N8KDV wrote in message ...
Also, I'm afraid to point out that the
design pre-dates the John Doty concept. (as far as I know).

True. There was nothing really new in my design. I wrote up the design
because I hadn't seen a good clear explanation of nonresonant wire
antennas with effective common mode decoupling. The article has been
posted on several web sites and published in several newsletters:
people seem to find it helpful. But it doesn't represent an invention,
it's just a piece of writing.

The important thing is that the concept really works, and I highly recommend it to anyone
contemplating the installation of an antenna.

Steve
Holland, MI
Drake R7, R8 and R8B

JPD,

I guess I will have to to change my attribution line.

FROM: Low Noise Antenna Design Concepts
- written by John Doty

TO: Low Noise Antenna Design Concepts
- as popularized by the writings of John Doty

http://www.anarc.org/naswa/badx/ante...e_antenna.html

Build-It-YourSelf and Hear the Difference.
From the Association of North American Radio Clubs (ANARC) WebSite
and the Rec.Radio.ShortWave (NG) WebPage.


IMHO: No one can deny that your Writings about the Low Noise Antenna
Design Concepts have 'helped' to "Popularize" those design concepts.


iane ~ RHF
..
..
= = = (John Doty)
= = = wrote in message . com...
N8KDV
wrote in message ...

Also, I'm afraid to point out that the design
pre-dates the John Doty concept. (as far as I know).


True. There was nothing really new in my design. I wrote up
the design because I hadn't seen a good clear explanation of
nonresonant wire antennas with effective common mode decoupling.
The article has been posted on several web sites and published
in several newsletters: people seem to find it helpful. But it
doesn't represent an invention, it's just a piece of writing.

John Doty
"You can't confuse me,
but an unreliable news server can make posting difficult!"

..

..

? WHY - Nine Feet High ?

"Well, I was able to get some 4" x 4" x 12' pieces of treated lumber,
I sunk them 3' into the ground, and I wound up with 9' sticking out.
That's my story, and I'm sticking to it!"


These Antennas could be called the
* * * Step Ladder High Antenna * * *
for the Vertically Challenged )--


jftfoi ~ RHF
..
..
= = = N8KDV
= = = wrote in message ...
RHF wrote:

N8KDV,

If my formatting caused some offence, I apologize.
(It was not intended to be a quiz.)

What I was seeking was any 'insight' that you have gained by
using these two "Low Noise" Random Wire Antennas.

Can't really say, they just 'work', so I've stuck with the concept.



Plus any unique directional and/or non-directional properties
these two "Low Noise" Random Wire Antennas 'exhibit' over the
Frequency Range from 500 kHz to 30 MHz.
(Medium Wave to Shortwave)

The 70' wire doesn't exhibit to much directionality on SW, but the 200' does.
Ideally, I'd have several up, in different compass directions.

We do have a site up about 100 miles from here with 6 antennas, ranging from
about 350' to 700', spread about the compass. All of them with matching
transformers, and the coax buried. Alas, I rarely get up there. I should go this
week, whilst DX season is still on!



Also, I do not know how to describe these two "Low Noise"
Random Wire Antennas.

* They are not High UP in the Air.

* They are not Laying ON the Ground.

* They are actually not NEAR the Ground.

I would say that they are best described as an On-the-Fence Antenna:
Without the Fence, and if the Fence was a High 9 Ft. Tall Fence.)
[TALL CORN] -or- [STEP LADDER HIGH] -or- [ELEPHANT'S EYE]

? Did you try these Antennas at a lower height before settling on 9 Ft ?

? WHY - Nine Feet High ?

Well, I was able to get some 4" x 4" x 12' pieces of treated lumber, I sunk them
3' into the ground, and I wound up with 9' sticking out. That's my story, and I'm
sticking to it!



=R= (My Reply) See additional Comments that are 'inserted'
in to the body of your prior Message.

iane ~ RHF
= = = I Ain't No Elmer
(I am simply trying to Learn about SWL Antennas and Share the Knowledge.)
.
.
= = = N8KDV
= = = wrote in message ...
RHF wrote:

N8KDV,

Other then the fact that these two Antennas are basically
a "Low Noise Design" (LND) Random Wire Antenna:
GoTo= http://www.iserv.net/~n8kdv/pics.htm
* Wire Antenna Element (AE)
* Matching Transformer (MT)
* Grounding Point 'located' at the AE & MT Junction
* Coax Cable Lead-in-Line

QUESTION #1: How would you further Sub-Catagorize your Antennas ?

Seventy Foot LND Antenna:
[ ] Just-a-Basic 70 Ft. Low Noise Design Random Wire Antenna
[ ] Ground Effect {NVIS} 70 Ft. and Low Noise Design Random Wire Antenna
[ ] 20 Meter Band and above Long Wire Antenna that incorporates
the Low Noise Design Antenna Concepts of John Doty
GoTo=


=R= My Assumptions A At about 20 Meters the 70 Ft. length would
be about One Wave Length long. I would seem to me that due to the
low height of this Antenna; it would be non-directional below 20
Meters. Then above 20 Meters this Antenna would be greater then
one wave length and might show some specific directional properties.

? Can you Comment and Share what your actual use of this 70 Ft.
Low Noise Random Wire Antenna has shown your ?


Went back and re-read this and figured I had a question.
What makes you think this is a 20 meter and above antenna?
Also, I'm afraid to point out that the design pre-dates the
John Doty concept. (as far as I know).


=R= Like Henry Ford and the Wright Brothers, it often who ends up
popularizing the item or concept that gets the headlines & credit;
and not necessarily the individuals who contribute to the creative
ideals and hard work that were the basis of the concept.
(Live is not always fair.)


http://www.anarc.org/naswa/badx/ante...e_antenna.html

Two Hundred Foot LND Antenna:
[ ] Just-a-Basic 200 Ft. Low Noise Design Random Wire Antenna
[ ] Ground Effect {NVIS} 200 Ft. and Low Noise Design Random Wire Antenna
[ ] 60 Meter Band and above Long Wire Antenna that incorporates
the Low Noise Design Antenna Concepts of John Doty
GoTo=


=R= My Assumptions A At about 60 Meters the 200 Ft. length would
be about One Wave Length long. I would seem to me that due to the
low height of this Antenna; it would be non-directional below 60
Meters. Then above 60 Meters this Antenna would be greater then
one wave length and might show some specific directional properties.

? Can you Comment and Share what your actual use of this 70 Ft.
Low Noise Random Wire Antenna has shown your ?


Works good below 60 meters too, also on MW, as does the 70',
see also my design concept note above.

I thank John Bryant and Nick Hall-Patch for publishing the matching
transformer concept, and the general antenna design in the 1988
issue of Proceedings, put out by the Fine Tuning radio group.


=R= Something to remember.


http://www.anarc.org/naswa/badx/ante...e_antenna.html


QUESTION #2: Do you still 'offer' For Sale your
"N8KDV" Ten-to-One (10:1) Matching Transformer ?
GoTo= http://www.iserv.net/~n8kdv/xfmr.htm

iane ~ RHF
.
.
Shortwave Listener (SWL) Antennas and AM & FM Antennas eGroup at YAHOO !
GoTo= http://groups.yahoo.com/group/SWL-AM-FM-Antenna/
.
.
= = = N8KDV
= = = wrote in message ...

Brian Hill wrote:

Hi Steve. How did you come up with that ant. on your website.
It seems to work good.
Brian

Nothing much to the antennas, they are simply 70' and a 200'
wires mounted about 9' above the ground.

I use matching transformers into coax, and the coax is buried,
then heading into the house.

The shot is from the end of the 100' wire, before I lengthened
it to 200'.

They seem to work OK, and this is the type of antenna I've been
using since about 1988 or so.

I plan on putting up a inverted vee for at least the 60 meter
band this coming summer.

Steve
Holland, MI
Drake R7, R8 and R8B
"I swear by, not at, Drake receivers" ©

http://www.iserv.net/~n8kdv/dxpage.htm



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