[Moon-net] Possible QRO 5760 operation
Pat Barthelow
aa6eg at hotmail.com
Thu Jan 25 00:21:55 CST 2007
Teve Andre' <andres at msu.edu> Said:
>This sounds wonderfully fun. Whats the gain at at 5760?
>I hope you can take pictures and stuff them somewhere
>on the net so we can all see this monster. 30m... <drool>
Hello Steve and Group,
We have some pictures for you and the group; See below. Also I would like
to thank, throw Kudos, to the 50 mhz and up Group, from the South Bay Area,
with Jim Moss, and Brian Yee, instrumental in coming down and getting this
dish out of mothballs, now turning and tilting wonderfully, under computer
control. Now, with hardware and expertise in the higher microwave
frequencies, and soon to light up the moon. As to gain on 5760, hmmm..
about 50db at 1296, say, 55db at 2.6, 60 at 5.2 ghz......minus some
efficiency... certainly at least 55 db...
Jim, and Brian are part of a larger team, handling a myriad of tasks, one of
which is to find a long term solution to keeping this dish from the scrap
pile. Could happen... Owners want to sell the property (soon) containing
the dish, and the dish may not have value to that goal, unless an entity is
found that wants the dish as part of the land (in god's country)
acquisition. We need a Silicon Valley Exec, or retiree, or maybe Richard
Branson, or Paul Allen, someone who wants a house with dish out in the
country....
A recent update on our work at Jamesburg Station.
JAMESBURG DISH UPDATE; 12/16/06:
This is the Lat Long of the Jamesburg Dish:
( Scaled off TOPO! )
36 24 11 121 38 50 NAD 83
SELECTED PICTURES:
Dish, Birdbath position
http://www.longandflatsociety.com/Portals/8/Gallery/904/100_0907.JPG
Secondary Reflector
http://www.longandflatsociety.com/Portals/8/Gallery/911/IMG_3072.jpg
Dish, on Post to the Intelsat Satellite
http://www.longandflatsociety.com/Portals/8/Gallery/912/P6030124.jpg
Dish Face
http://www.longandflatsociety.com/Portals/8/Gallery/912/P6030036.jpg
On the Dish, at the phase center, feed horn under the covers,
Jim Moss, and Pat Barthelow
http://www.longandflatsociety.com/Portals/8/Gallery/911/IMG_3074.jpg/IMG_3073.jpg
Additional Pictures at end of this Doc.
How all this got started: I suggested some time ago to the new owners, that
I was interested in mobilizing a group within the ham community to work on
bringing Jamesburg station up to running condition and doing moonbounce
contacts with it. This would bring visibility and status to the station,
possibly to the professional Scientific Community, who could see a long term
future for the station, possibly in Radio Astronomy, Space Camps, Data
Centers, etc. We are fortunate now, to have a very distinguished panel of
experts in many areas, as Jamesburg group participants.
Our Academic brain trust include Professors, scientists, and students
involved in Astronomy, and Space Sciences, including amateur radio-built
satellites (Cubesats). ( http://www.cubesat.com )
They hail from Stanford University, Cal Poly San Luis Obispo, UC Santa Cruz,
CSU-Monterey Bay, and soon will include Scientists from the SETI institute
in Mountain View. Many of our group are highly skilled engineers and
technicians from industry, including some who are technology business
owners. Many are Ham Radio operators, really jumping in, and getting
things done.
Dr. Jill Tarter, Chief Scientist of SETI, http://www.seti.org plans to tour
Jamesburg soon.
Dr. Bob Lash, (See http://www.bambi.net/bob.html) with a great amount of
experience in Satellites, computers, and all types of telecomm, has been
quite helpful in on-site work, and bringing in other persons, groups and
organizations to be involved in Jamesburg.
Dr. Bob Twiggs, of Stanford, is the father of the Internationally known
Cubesat Program, and sees a possible future activity of Jamesburg in
Cubesats, both near (earth orbit) and far (Moon orbits, and Mars Probes)
See:
http://www.space.com/businesstechnology/technology/050928_cubesats.html
Dave Smith, W6TE, from Fresno, on board from the beginning , and very
capable, with EME experience, has offered his 500 watt 1296 EME radio, and
feed antenna for use at the Jamesburg Dish. Dave should be able to join us
in work parties, very soon.
John Castorina, former ham, WB6AZP
a college chum of mine from way back,
worked at Jamesburg for several years in the 70s, and for many more years
at COMSAT HQ in Washington.
See: http://www.longandflatsociety.com for pictures. Click on Galleries,
Jamesburg, then any of the portfolios of pictures.
Bryan Klofas, from Cal Poly,
( http://cubesat.atl.calpoly.edu/pages/home/contact-us.php )
is Lead student in their CubeSat Program. He is looking into long term
solutions of use and preservation of the Jamesburg Earth Station, involving
Cal Poly as a player.
Brian Yee, and Jim Moss, have been with us on almost all work parties, are
from the 50mhz and up group, (South Bay Area) have been quite an asset,
with great ideas, troubleshooting skills, a camera, and a can-do attitude.
Keep up the great energy, and work, Brian and Jim.
Bob Brunnquell, K6OU, a friend of mine, from the Sacramento area also, has
decades of big dish experience, as part of his Air Force Duties, where he
did Solar studies with big dishes in Hawaii. Welcome Bob, we value your
wise contributions to our work, and safety.
Chuck Osborne, a seasoned big dish veteran, is with us from the east coast,
with sage advice and oversight, particularly valuable and relevant as he is
director of operations at the Pisgah Radio Observatory in N. Carolina, and
knows these 30 meter dishes.
Welcome Chuck!
Jack Ramey of our group, worked for decades at Jamesburg, and is probably
the most knowledgeable person in our group of the detailed nuts and bolt of
the station operation. Welcome Jack
I hope we are not leaning on you too
hard!
Marc Goldman, WB6DCE. along with Thor Rasmussen, N6FNP, has been our crack
photographers. Marc is also Armstrong, and tools, nuts and bolts man with a
lot of time on, particularly the stuck pin. Welcome Marc!
John Hagerty, W6UQZ, an insurance guy, in his real job, in addition to
being a ham techhie, has helped a lot in a number of work party visits,
particularly with respect to the stuck pin.
We are proceeding, and are well along after several work parties which began
in earnest, in early November. The computer controlled 30 meter dish now
is able to be rotated in azimuth, [and now, in elevation] after a lot of
work to clear computer controlled interlocks, and further understanding of
the control system. A .pdf file doc of the Vertex-RSI 7210 computer
control system is available to anyone who needs it to work on Software or
Hardware problems, towards getting the dish under computer control of a moon
tracking program.
It is available as a download from the
http://www.longandflatsociety.com website.
For those that have not yet come to Jamesburg, FYI: it is about 1 hour drive
from Monterey. For Maps, directions, go to Google Maps, and for a location,
type : COMSAT RD. Carmel Valley CA. The station is at the end of
COMSAT Rd. The Google photo is cool. You can easily see the dish, in
birdbath position, and the attached 20,000 sq ft building.
Here is a great Google Satellite picture of the site:
http://maps.google.com/?ie=UTF8&z=15&ll=36.402218,-121.649079&spn=0.015198,0.029011&t=h&om=0
Another Aerial Shot of the site:
http://www.jamesburgstation.net Is an older website with a good picture.
(Jamesburg is no longer set up as a commercial Satcomm services provider)
Jamesburg ATT switching room, now empty; One of several, that are this
size.)
http://www.longandflatsociety.com/Portals/8/Gallery/911/IMG_3051.jpg
See you from the Moon, Soon...
73, de Pat, AA6EG, Jim Moss, n9Jim-6, Brian, W6BY, and the gang..
More information about the Moon-net
mailing list