I believe that the Arecibo Observatory antenna was used for a moonbouce
QSO...!
KP4DX - Luis
"R. Scott" wrote in message
...
In going with the current LONG thread. Whats the largest you've seen.
Here is mine.

I cannot confirm it nor find it. But in California (near the Bay Area
where I was stationed at Moffett) I remember seeing a Giant 3 elem beam
with Rohn 25 as the mast. I believe a Ham Friend of mine said it was an
80m Shorty (But it just seemed to unreal for me)

In Diego Garcia we used 3 Mono banders made from 2 Log Periodics the
Comsta gave them. The 20m was 7 or 8 elems. Was huge.



--
Rick
Everett, Washington
Remove THREAD to reply.

On Mon, 23 May 2005 18:17:29 -0700, Richard Clark
wrote:

On Mon, 23 May 2005 15:05:03 -0700, Jim Kelley
wrote:
I always thought the biggest ham antenna was supposedly the old W6AM
rhombic on Palos Verdes peninsula.

http://home.swipnet.se/dx/porthole/w6am1.htm

Hi Jim,

Any picture that requires a satellite view must qualify as BIG.

73's
Richard Clark, KB7QHC

I'm surprised that no one has mentioned the Wullenweber's (AN/FLR-9)
that were used for radio survellence and direction-finding years ago.
They may not have been the largest, but they were certainly among the
most complex.

R

On Mon, 23 May 2005 19:20:06 -0700, "Fernando Diaz"
wrote:

I believe that the Arecibo Observatory antenna was used for a moonbouce
QSO...!

Yes it was. I heard their two meter signal using a HB 7 element Yagi
with the reflector about a foor off the ground and the boom propped up
on a ladder.

W5UN's EME array is "Mighty Big" too. I've worked him on two meter
EME 2XSSB when my antenna was on;y four 3.2 lambda Yagis.

http://web.wt.net/~w5un/mba2003.jpg

I don't have the links but some of the OH hams have some really large
stacked h-f arrays.


KP4DX - Luis
"R. Scott" wrote in message
...
In going with the current LONG thread. Whats the largest you've seen.
Here is mine.

I cannot confirm it nor find it. But in California (near the Bay Area
where I was stationed at Moffett) I remember seeing a Giant 3 elem beam
with Rohn 25 as the mast. I believe a Ham Friend of mine said it was an
80m Shorty (But it just seemed to unreal for me)

In Diego Garcia we used 3 Mono banders made from 2 Log Periodics the
Comsta gave them. The 20m was 7 or 8 elems. Was huge.



--
Rick
Everett, Washington
Remove THREAD to reply.

Fernando Diaz wrote:
I believe that the Arecibo Observatory antenna was used for a moonbouce
QSO...!
KP4DX - Luis

Several times. The old 400MHz feed would work at 432, so on days when
the moon was at the right elevation in the sky, they had maybe 20
minutes operating time as it passed directly over the dish.

The last time this happened was about 20 years ago, and I was lucky
enough to make a QSO. Lucky, because I almost tuned right past him,
thinking "That's too strong to be a moonbounce signal."

I was running a kW and 8 yagis. The QSL card said he was running 10W...
and Arecibo.


--
73 from Ian GM3SEK 'In Practice' columnist for RadCom (RSGB)
http://www.ifwtech.co.uk/g3sek

Ian White GM3SEK wrote:
Fernando Diaz wrote:

I believe that the Arecibo Observatory antenna was used for a moonbouce
QSO...!
KP4DX - Luis


Several times. The old 400MHz feed would work at 432, so on days when
the moon was at the right elevation in the sky, they had maybe 20
minutes operating time as it passed directly over the dish.

As memory serves (cant find the article, in old VHFer magazine),
fellow in Portland Oregon copied Sam Harris W1FZJ, wit a 1/4 wave
whip stuck into the antenna jack of his Parks Converter, on 432!
Said they could hear Sam's beard rubbing against the mic !!

Also, what of the original "ECHO" , a metalic baloon launched as a
satellite- acted as a reflector - was pretty big for it's day, tho
obviously, not the most effecient. Jim NN7K

Jim - NN7K wrote:



Also, what of the original "ECHO" , a metalic baloon launched as a
satellite- acted as a reflector - was pretty big for it's day, tho
obviously, not the most effecient. Jim NN7K


Not as big as I thought- only 40 meters dia! thought those were bigger!
Jim

On Tue, 24 May 2005 04:25:49 GMT, Russ wrote:

On Mon, 23 May 2005 18:17:29 -0700, Richard Clark
wrote:

On Mon, 23 May 2005 15:05:03 -0700, Jim Kelley
wrote:
I always thought the biggest ham antenna was supposedly the old W6AM
rhombic on Palos Verdes peninsula.

http://home.swipnet.se/dx/porthole/w6am1.htm

Hi Jim,

Any picture that requires a satellite view must qualify as BIG.

73's
Richard Clark, KB7QHC

I'm surprised that no one has mentioned the Wullenweber's (AN/FLR-9)
that were used for radio survellence and direction-finding years ago.
They may not have been the largest, but they were certainly among the
most complex.

The antenna you are referring to should be spelled Wollenweber, which
in German means literally a "wool weaver". They got that name because
of their resemblance to an automatic sock making machine.

There were several of those stationed at strategic places around the
world - mostly surrounding the USSR, and they were used by our people
for the purpose of eavesdropping on Iron Curtain communications. I had
some familiarity with the project in 1984-5 working for RCA Service
Company. The project was called Maroon Archer and had been around for
some time already. For example, there was one near Stuttgart. I'm sure
they have been dismantled by now.



Bob, W9DMK, Dahlgren, VA
Replace "nobody" with my callsign for e-mail
http://www.qsl.net/w9dmk
http://zaffora/f2o.org/W9DMK/W9dmk.html

Also, what of the original "ECHO" , a metalic baloon launched as a
satellite- acted as a reflector - was pretty big for it's day, tho
obviously, not the most effecient. Jim NN7K

ECHO was a 100' balloon constructed from 1 mil aluminized mylar. It was an early
attempt to achieve global TV transmission by reflecting signals from the ground
station, launched on August 8, 1960. Proved unuseful due to the excessive power
required of the ground transmitter.

ECHO had two beacon transmitters, one at each pole, operating on 108 and 108.3
MHz. I had the priviledge of designing the antennas used on the beacon. One of
my colleagues at RCA designed and built the 10 mw transmitters. The purpose of
the beacons was to assure knowledge of the balloon's position duing launch in
case it was obscured by clouds.

Pictures showing the beacons and the technician attaching them to the balloon
material will appear in my book Reflections 3, which is now in the production
stage.

Walt Maxwell, W2DU

Oooops, I forgot to change to my new email address. Please change from
to .

Walt, W2DU

On Tue, 24 May 2005 14:02:06 GMT, (Robert
Lay) wrote:

On Tue, 24 May 2005 04:25:49 GMT, Russ wrote:

On Mon, 23 May 2005 18:17:29 -0700, Richard Clark
wrote:

On Mon, 23 May 2005 15:05:03 -0700, Jim Kelley
wrote:
I always thought the biggest ham antenna was supposedly the old W6AM
rhombic on Palos Verdes peninsula.

http://home.swipnet.se/dx/porthole/w6am1.htm

Hi Jim,

Any picture that requires a satellite view must qualify as BIG.

73's
Richard Clark, KB7QHC

I'm surprised that no one has mentioned the Wullenweber's (AN/FLR-9)
that were used for radio survellence and direction-finding years ago.
They may not have been the largest, but they were certainly among the
most complex.

The antenna you are referring to should be spelled Wollenweber, which
in German means literally a "wool weaver". They got that name because
of their resemblance to an automatic sock making machine.

There were several of those stationed at strategic places around the
world - mostly surrounding the USSR, and they were used by our people
for the purpose of eavesdropping on Iron Curtain communications. I had
some familiarity with the project in 1984-5 working for RCA Service
Company. The project was called Maroon Archer and had been around for
some time already. For example, there was one near Stuttgart. I'm sure
they have been dismantled by now.



Bob, W9DMK, Dahlgren, VA
Replace "nobody" with my callsign for e-mail
http://www.qsl.net/w9dmk
http://zaffora/f2o.org/W9DMK/W9dmk.html


Here is what I found with Google:

http://www.answers.com/topic/wullenweber

A boyhood pal went into the Army and spent a year at Ramasun Station.
He explained it to me thirty years ago. As the article states, it is
a "Circularly Disposed Dipole Array". Other pictures show a building
in the center of the array where radio intercept operations were
conducted. The circuitry used to "rotate" the array was quite
complex. They have indeed been dismantled.

R