Name that antenna
 

Hiya...

One of my two antennas is a home brew 200 ft random wire antenna. It's well
grounded and also makes use of a coax feed and an ICE-180 matching
transformer. Most importantly, it's set up and folded more like a piece of
modern art rather then an antenna :-). I've had a number of DX'ing friends
over here to check out my R-75 rig and my antennas. A number of times, we
have also had them bring their rigs over here, including an R-8A and a
Kenwood R-5000. We did some side by side comparisons between radios to see
what was the best DX'ing rig. Although we didn't come up with a definitive
answer about what rig was best, we've decided that for reasons unknown, my
200ft "FRANKENSTEIN" random wire antenna was by far the best DX'in antenna
that any of us have used. Still, I have no idea of what the thing is. I
just strung the thing up.. LOL.

Here is a link to the part on my DX'ing page that has comprehensive info on
"FRANKENSTEIN" including diagrams.

http://md_dxing.tripod.com/hobbyandhowto/id5.html

Does anyone know what the heck this thing is ??? How would you classify
this antenna besides being a work of modern art ??? LOL. There has got to
be a reason behind it's performance.

Any input would be appreciate.

In short.. What the heck is it ???

--
Respectfully,

Michael

Home Page: http://md_dxing.tripod.com/
Northern NJ
R75 w/DSP, Kiwa agc/sync & audio mods
G5RV & 200ft longwire w/ICE-180
MFJ-1048 preselector
SoundBlstr Live PC card w/five piece Cambridge
speakers & full software mixer/eq.

recent scientific investigations have found antennas based on a "fractal"
like pattern are better than their more conventional counterparts, but as
far as I know, they have not come up with a reason s.

That sorta resembles an inverted V folded dipole. At 200 feet, I'd bet it is
somewhat directional as well. Good looking design ! I did something similar
once, but had a 20' wooden pole and did it similarly, and it worked well
also. Is it just one long continuous wire, or two equally long halves ?

What the heck is it ???

You sure it wasn't meant to be a patio cover.
The web page is really nice.

Rob Mills ~~~ Tulsa, Ok

Hi Michael:

I've found, that if you put up "More Wire" you get " More Signal".

A John Carr book says if you Quadruple the antenna length to get a 6 DB
( Noteceable) change in signal strength. Found that to be true,

- So it sounds like what you 've got ( 200 foot multi directional ) works
pretty good !

- If you're bored, ( & hanker to terrify the neighbors, )

You COULD try ( using a different color wire to keep it straight ) put up
another 600 feet of wire on your roof

& see if it measurably increases signal strength..!

I mean, if bigger ain't better,
how do you account for Ariciebo or the Very Large Arrays, or Art Bells Huge
Loop antenna?

Antennas are a nice, cheap hobby . . ..


Dan
( R-75 & 100 feet random Wire)
& a MFJ 1046 ( usually shut off)




In article , "Michael"
writes:...

One of my two antennas is a home brew 200 ft random wire antenna. It's well
grounded and also makes use of a coax feed and an ICE-180 matching
transformer. Most importantly, it's set up and folded more like a piece of
modern art rather then an antenna :-).

Does anyone know what the heck this thing is ??? How would you classify
this antenna besides being a work of modern art ??? LOL. There has got to
be a reason behind it's performance.

Any input would be appreciate.

In short.. What the heck is it ???

--
Respectfully,

Michael

Hiya...

It's one long continuous wire...

--
Respectfully,

Michael

Home Page: http://md_dxing.tripod.com/
Northern NJ
R75 w/DSP, Kiwa agc/sync & audio mods
G5RV & 200ft longwire w/ICE-180
MFJ-1048 preselector
SoundBlstr Live PC card w/five piece Cambridge
speakers & full software mixer/eq.

"Warpcore" wrote in message
nk.net...
That sorta resembles an inverted V folded dipole. At 200 feet, I'd bet it
is
somewhat directional as well. Good looking design ! I did something
similar
once, but had a 20' wooden pole and did it similarly, and it worked well
also. Is it just one long continuous wire, or two equally long halves ?

Michael:
- Maybe it's just a "BFA" class antenna.

My Wife caught me up on our Apartment house roof, with a measuring tape and the
Jwin JX -M14
-Just checkiing the circumference of the roof..

Antennas are totaly Verbotten.

Promised her I wouldn't do anything until they actually install
a lightning rod array up there.

About once a year we get hit by lightning, totally fries the elevator controls.
Does give one pause...

Dan



In article , "Michael"
writes:

There has got to
be a reason behind it's performance.

Any input would be appreciate.

In short.. What the heck is it ???

Diverd4777 wrote:

Hi Michael:

I've found, that if you put up "More Wire" you get " More Signal".

A John Carr book says if you Quadruple the antenna length to get a 6 DB
( Noteceable) change in signal strength. Found that to be true,

- So it sounds like what you 've got ( 200 foot multi directional ) works
pretty good !

- If you're bored, ( & hanker to terrify the neighbors, )

You COULD try ( using a different color wire to keep it straight ) put up
another 600 feet of wire on your roof

& see if it measurably increases signal strength..!

I mean, if bigger ain't better,
how do you account for Ariciebo or the Very Large Arrays, or Art Bells Huge
Loop antenna?

Antennas are a nice, cheap hobby . . ..

Bigger is better providing your receiver can handle the greater signal
levels without overloading. If not, you will be frustrated with all the
spurious (false) signals to be found throughout the receiver's tuning
range.


-----= Posted via Newsfeeds.Com, Uncensored Usenet News =-----
http://www.newsfeeds.com - The #1 Newsgroup Service in the World!
-----== Over 100,000 Newsgroups - 19 Different Servers! =-----

Michael wrote:

Hiya...

One of my two antennas is a home brew 200 ft random wire antenna. It's well
grounded and also makes use of a coax feed and an ICE-180 matching
transformer. Most importantly, it's set up and folded more like a piece of
modern art rather then an antenna :-).

Where's the connection from the antenna to the matching transformer? I
see the end of the wire connected to an insulator on the chimney but
where's the other end (beginning) of the antenna wire that should be
connected to the ICE-180? Also, if the antenna wire is a 200-ft
continuous length, I don't see what path it takes to make the 'X'
pattern. It looks like two seperate doubled wires crossing over the
chimney top but not part of a continuous length of wire. It would be
helpful if you added some arrows to show the path of the wire as you
constructed it.


-----= Posted via Newsfeeds.Com, Uncensored Usenet News =-----
http://www.newsfeeds.com - The #1 Newsgroup Service in the World!
-----== Over 100,000 Newsgroups - 19 Different Servers! =-----

Michael,

Seems like you have already named your 200 Ft Random Wire Antenna.
- - - So let it be "FRANKENSTEIN" !
- - - "Fran-Xan-Wire" would have been my choice :o)

Someone with Antenna Modeling Software may be able to give you a
better 'idea' as to the reception pattern that your unique antenna
exhibits.

The Double Folded "X" Shape and the Ground Wire that bisects the field
of "X" creates infinite possibilities.
- - - http://md_dxing.tripod.com/hobbyandhowto/id5.html

IMHO: What makes your "FRANKENSTEIN" Antenna such a performer is that
fact that it uses the Low Noise Antenna design concepts a la "John
Doty".
- - - http://www.anarc.org/naswa/badx/ante...e_antenna.html
- - - http://www.anarc.org/naswa/badx/ante..._longwire.html
- - - http://www.hard-core-dx.com/nordicdx...eed/coax2.html

Plus you used the ICE-180 Matching Transformer.
- - - http://www.hard-core-dx.com/nordicdx...ed/ice180.html
- - - http://www.hard-core-dx.com/nordicdx...d/magbal2.html

Add-in the fact that your have a 'good' Grounding System.
- - - http://www.anarc.org/naswa/badx/antennas/grounding.html
- - - http://www.qsl.net/co8tw/grounding.htm


iane ~ RHF
..
..
= = = "Michael"
= = = wrote in message . net...
Hiya...

One of my two antennas is a home brew 200 ft random wire antenna. It's well
grounded and also makes use of a coax feed and an ICE-180 matching
transformer. Most importantly, it's set up and folded more like a piece of
modern art rather then an antenna :-). I've had a number of DX'ing friends
over here to check out my R-75 rig and my antennas. A number of times, we
have also had them bring their rigs over here, including an R-8A and a
Kenwood R-5000. We did some side by side comparisons between radios to see
what was the best DX'ing rig. Although we didn't come up with a definitive
answer about what rig was best, we've decided that for reasons unknown, my
200ft "FRANKENSTEIN" random wire antenna was by far the best DX'in antenna
that any of us have used. Still, I have no idea of what the thing is. I
just strung the thing up.. LOL.

Here is a link to the part on my DX'ing page that has comprehensive info on
"FRANKENSTEIN" including diagrams.

http://md_dxing.tripod.com/hobbyandhowto/id5.html

Does anyone know what the heck this thing is ??? How would you classify
this antenna besides being a work of modern art ??? LOL. There has got to
be a reason behind it's performance.

Any input would be appreciate.

In short.. What the heck is it ???

--
Respectfully,

Michael

Home Page: http://md_dxing.tripod.com/
Northern NJ
R75 w/DSP, Kiwa agc/sync & audio mods
G5RV & 200ft longwire w/ICE-180
MFJ-1048 preselector
SoundBlstr Live PC card w/five piece Cambridge
speakers & full software mixer/eq.

Warpcore wrote:

recent scientific investigations have found antennas based on a "fractal"
like pattern are better than their more conventional counterparts, but as
far as I know, they have not come up with a reason s.

Where is the fractal shape in this antenna?

Dale W4OP

Diverd4777 wrote:

Hi Michael:

I've found, that if you put up "More Wire" you get " More Signal".

A John Carr book says if you Quadruple the antenna length to get a 6 DB
( Noteceable) change in signal strength. Found that to be true,


Have you also noticed there is a 6dB increase in noise?
The only way to get increased sugnal strength for horizontal antennas ( i.e.
S/N) is to make the antenna directional- so there is an increase in one direction
at the expense of another direction. Not very useful unless you can rotate the
array.

Dale W4OP

Hiya....

The very beginning of the receiving wire is attached directly to the
ICE-180.

The part of the diagram that is creating the question about the exact path
the receiving wire takes has to do with how the wire gets wrapped around the
very center of the top of the stone chimney and then directed to another
corner of the roof.

The receiving wire starts at the tap on the ICE-180 which is on the roof at
the bottom of the chimney. From there, it goes straight up three feet to
the top of the chimney. There it is wrapped around the top of the chimney
once and leads to the first corner of the roof. From the corner of the
roof, it feeds through the securing nylon tie that is secured to the gutter,
and then goes back on itself to the chimney. At the chimney, it's wrapped
around once more and heads to the second corner of the roof. From the
second corner, it's again fed through the securing nylon tie and then back
to the chimney. This is repeated for the other two corners of the roof.
The final return of the receiving wire to the chimney is wrapped around once
at the chimney to secure it and then terminated to an insulator. If you
look at the top of the chimney, although each "wrap-around" is of equal
length and shape, it appears as if there is a small coil of wire around the
top of the chimney.

--
Respectfully,

Michael

Home Page: http://md_dxing.tripod.com/
Northern NJ
R75 w/DSP, Kiwa agc/sync & audio mods
G5RV & 200ft longwire w/ICE-180
MFJ-1048 preselector
SoundBlstr Live PC card w/five piece Cambridge
speakers & full software mixer/eq.

"starman" wrote in message
...
Michael wrote:

Hiya...

One of my two antennas is a home brew 200 ft random wire antenna. It's
well
grounded and also makes use of a coax feed and an ICE-180 matching
transformer. Most importantly, it's set up and folded more like a piece
of
modern art rather then an antenna :-).

Where's the connection from the antenna to the matching transformer? I
see the end of the wire connected to an insulator on the chimney but
where's the other end (beginning) of the antenna wire that should be
connected to the ICE-180? Also, if the antenna wire is a 200-ft
continuous length, I don't see what path it takes to make the 'X'
pattern. It looks like two seperate doubled wires crossing over the
chimney top but not part of a continuous length of wire. It would be
helpful if you added some arrows to show the path of the wire as you
constructed it.


-----= Posted via Newsfeeds.Com, Uncensored Usenet News =-----
http://www.newsfeeds.com - The #1 Newsgroup Service in the World!
-----== Over 100,000 Newsgroups - 19 Different Servers! =-----

Michael wrote:

Hiya....

The very beginning of the receiving wire is attached directly to the
ICE-180.

The part of the diagram that is creating the question about the exact path
the receiving wire takes has to do with how the wire gets wrapped around the
very center of the top of the stone chimney and then directed to another
corner of the roof.

The receiving wire starts at the tap on the ICE-180 which is on the roof at
the bottom of the chimney. From there, it goes straight up three feet to
the top of the chimney. There it is wrapped around the top of the chimney
once and leads to the first corner of the roof. From the corner of the
roof, it feeds through the securing nylon tie that is secured to the gutter,
and then goes back on itself to the chimney. At the chimney, it's wrapped
around once more and heads to the second corner of the roof. From the
second corner, it's again fed through the securing nylon tie and then back
to the chimney. This is repeated for the other two corners of the roof.
The final return of the receiving wire to the chimney is wrapped around once
at the chimney to secure it and then terminated to an insulator. If you
look at the top of the chimney, although each "wrap-around" is of equal
length and shape, it appears as if there is a small coil of wire around the
top of the chimney.

--
Respectfully,

Michael

Now I get it. Thanks for clarifying it. I think it would be difficult to
analyze such a non conventional design, especially when you have doubled
the wire to each of the four arms of the 'X'. However if you're
satisfied with it's performance, more power to you. If I had your set
up, I would try making some kind of loop, using the chimney as the
connecting point for the downlead (coax). You could also do an
inverted-V (dipole), with the chimney as the high point or a rhombic,
starting at one corner and extending to each of the other corners. Have
fun.


-----= Posted via Newsfeeds.Com, Uncensored Usenet News =-----
http://www.newsfeeds.com - The #1 Newsgroup Service in the World!
-----== Over 100,000 Newsgroups - 19 Different Servers! =-----

Bigger is better providing your receiver can handle the greater signal
levels without overloading. If not, you will be frustrated with all the
spurious (false) signals to be found throughout the receiver's tuning
range.


Point taken !

to guard against this, I bought a MFJ 1046 Pre selector;
If theres an overload situation on a frequency thats bothersome,
you flip it on

Knocks a few DB off the desired signal

- ANd all the wierd overloady stuff goes away !
Nice..

On the other side of this longwire antenna / pre selector
is the Icom R-75,
which has two amps,
that help bring up the strength of the weaker signals.

- I've picked up some of the radio traffic from Diego Garcia, and some
airport " transponders ( ??) from Santa Maria ( canary Islands)
- so the set up can't be all that bad.. !

Dan