Mar 31 2006
Arecibo Observatory Experience…
It’s been awhile since I posted… I want to share my experiences with you on my latest adventures…
Working at the AO is aside from being so way cool, quite challanging, and loads of fun.
The people there are warm, giving and just so down to earth. They are quite friendly and cheerful. I’ve made many new friends there.
My role is to operate and assist the scientist in their efforts. Several equipment are used to help them in their observations. The coolest part is being able to move and control the platform, dome and carriage house and its internal receivers and transmitters from the control room… I feel like I’m at NASA’s control room during the moon missions…
 I have about twenty-one monitors to monitor.
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The first half of the month, I was given the inside tour of the platform which hangs about 500 feet above the dish (305 meter wide)…most people that work on the platform take the cable car to the platform’s main entrance. What a ride!
From the platform there’s an excellent view of the Control Room and the Visitor’s Center. That’s not to mention the view of the whole island! We arrived up at the entrance to the platform and started weaving are way to the rotary joint were we had to go into an opening and climb down. From there we can walk to either the carriage house or the dome.
The dome is so cool. Next we went to the elevation floor and climbed down the dome platform to then walk over to the entrance of the dome. Inside of the dome is like a three floor building: Inside the top floor is where the dual Klystrons are kept for the S-band Receiver and Transmitter plus loads of cabling and water holes (used as part of the heat exchange system located outside above the dome).Â
The middle floor is where the rest of the equipment is located. They are on a rotating floor which allows the scientista a choice of receivers/transmitters. Both top and middle floor rooms are shielded to minimize any interference.Â
Next, the bottom floor has a service platform (not enclosed)Â that allows Electronics, Maintenance, and/or Operator crew to interface with the horns and detectors coming through the rotating floor above.Â
Ideally the receiver of choice is moved to the focal point (away from the service platform) to allow sending and receiving of signals to a small dish located at an angle right below the service platform. It directs the signal to another dish located among the inner surface of the dome which then directs the signal down to the main dish below the platform. The signals are received and transmitted from the main dish.
The main dish is amazing. Would you believe that it’s another world down there when we drive down below the dish? There are plants, streams, and small animals, plus lots of insects. The view of the platform from below the dish leaves me in awe. I’m amazed by the size and complexity of this telescope. More impressive are the people from the past and present that created and maintains this work of art in the best condition. Â
If you ever get a chance to vacation in Puerto Rico, I highly recommend to add to your sightseeing a trip to the Arecibo Observatory Telescope — the world’s largest dish ever. It is something worth experiencing in person versus seeing it via a movie or pictures. If you want to know more about Arecibo Observatory visit www.naic.edu.
I’m in a dream…I didn’t picture being here in Puerto Rico and less so working at Arecibo Observatory and being a Cornell University Employee.
Sometimes, dreams really do become a reality. Don’t lose sight of your dreams because when you least except it an opportunity presents itself–and it’s up to you to recognize it and make that change.Â
As always, I wish you and your loved ones much success.
Miss you, love you, with BIG Hugs,
Evelyn
P.S. There are a couple of pics of the control room in the Photos area of the site. Check them out.
Upon Request, here are the images of the both types of Klystrons used at AO:Â
For further information on the 430MHz Radar visit: http://www.naic.edu/aisr/sas/transmitter/trans-home.html
The following are the older Klystron model are used for the 430MHz Observations:
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        Klystron tube         Klystron Slipt power         Klystron Control panel
                                             and load
The next Modern Klystron model is used for the S-band Observations:
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