Posts by Scott Hackney
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1)
Message boards :
Cafe SETI :
SETI@Home Dish Network
(Message 455086)
Posted 11 Nov 2006 by  Scott Hackney
Post: well, the IEEE guys don't really have to...TCP/IP is a "connectionless" means of communication... it sends binary packets back and forth...there is no connection. TCP/IP is a protocol requiring a primer to decode the signal. I would think that SETI works much along the lines as described in the movie Contact. Looking for patterns in the chaos, and then finding the primer or rosetta stone that allows you to decode seemingly static patterns. Basically, if we want to do this massive project, we'll need to figure out a way to transmit the gain from the antennae to a central receiver by establishing some sort of quantum connection or perhaps some kind of optical relay that can act as a well for photons with the 'water hole' characteristics and thereby 'piping' it to a central receiver. Maybe some kind of solid-state optical radio relay device... I doubt I'll figure this out tonight. I'm sure you Navy guys have some tricks up your sleeves, I try to join but can't on account of a perforated eardrum. G'night! |
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2)
Message boards :
Cafe SETI :
SETI@Home Dish Network
(Message 455078)
Posted 11 Nov 2006 by Scott Hackney
Post: No. Not on this scale. The antenna (collector) has to be physically connected to the receiver...in other words....the energy (photons) would have to be able to travel from the antenna all the way to the receiver. because it is the receiver that detects the presence of this energy. Okay, I guess I am confused. For some reason I'm getting ideas of quantum entanglement / teleportation being able to bypass this limitation and somehow retaining a sort of quantum physical connection between the antennae and receiver. You'd think the IEEE guys would have this figured out already. |
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3)
Message boards :
Cafe SETI :
SETI@Home Dish Network
(Message 455038)
Posted 11 Nov 2006 by Scott Hackney
Post: I will have to meditate on this. Thank you for your time. |
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4)
Message boards :
Cafe SETI :
SETI@Home Dish Network
(Message 455036)
Posted 11 Nov 2006 by Scott Hackney
Post: The purpose of using an array of dishes is to collect more energy at once due to the increase surface area using multiple dishes...this energy is piped into a single receiver...signal detection is done with the receiver, not the antenna. So you can't pipe the energy from the various dishes to a central receiver? |
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5)
Message boards :
Cafe SETI :
SETI@Home Dish Network
(Message 455028)
Posted 11 Nov 2006 by Scott Hackney
Post: Okay, scenario... Let's say I'm a university Professor on the backbone of a fiber optics network. I put 4 dishes on top of one of the university buildings. Another professor on the same network puts up 5. Is it possible for these 9 dishes to act as one dish? Could this be done with 50 dishes? 100? Its now the year 2050. The whole country now has fiber optics. Would it be possible to utilize this on an @Home basis assuming advances in Moore's Law and perhaps a billionaire philanthropist opening up a manufacturing plant for receivers specialized for this task, each dish coming in a little package with the SETI@Home logo on it and accompanying software that would link each dish... report the status of each dish... etc. Theoretically. |
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6)
Message boards :
Cafe SETI :
SETI@Home Dish Network
(Message 455020)
Posted 11 Nov 2006 by Scott Hackney
Post: Have a look at what others are already doing. AmateurSETI Even if done assymetrically by a million SETI@Home volunteers? Why doesn't Moore's Law + Fiber Optics Communications allow this to happen? All the receivers would send their data to a computer like BlueGene which would compile the information and then send it out for analysis via SETI@Home Michael's post made a lot of sense, but still. The collection effort might be put on a task scheduler to operate in cooperation with Arecibo or the VLA or another network. It would utilize fiber optics to assure that the data is collected and compiled in real-time. |
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7)
Message boards :
Cafe SETI :
SETI@Home Dish Network
(Message 455013)
Posted 11 Nov 2006 by Scott Hackney
Post: Have a look at what others are already doing. AmateurSETI Thats fine, but I want to synchronize them into a vast network like the VLA or Allan Array. |
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8)
Message boards :
Cafe SETI :
SETI@Home Dish Network
(Message 455005)
Posted 11 Nov 2006 by Scott Hackney
Post: who'd be incharge of inspecting each dish to make sure ALL the dishes were pointed EXACTLY at the correct location? The larger the dish the less powerful the signal has to be to detect it. The smaller the higher the power transmission has to be, and we're looking for very weak signals. My guess is that the program would control each dish and would be able to monitor the direction the dish is pointing. As long as the dish is synchronized with the network it will be used in the collection effort. If there is a problem, a window will pop up informing the user that maintenance is required. |
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9)
Message boards :
Cafe SETI :
SETI@Home Dish Network
(Message 455002)
Posted 11 Nov 2006 by Scott Hackney
Post: When will this happen? Okay, sounds like a good start. |
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10)
Message boards :
Cafe SETI :
SETI@Home Dish Network
(Message 454997)
Posted 11 Nov 2006 by Scott Hackney
Post: Are home satellite dishes strong enough to do this? If so, then why would they need to build these huge ones? I don't think its possible dude. They built the large ones in the old days to gather the radio waves. The larger the surface area of the collector, the more data it could receive. Today, you have the VLA which is now moving towards the Allan Array. When you add more dishes to the network, you increase the surface area of your receiver which allows more photons to be collected. If we had a million dishes working together via a SETI@Home Dish Network, we'd be rock'n. I'm thinking of something like the LOFAR system, but for SETI. |
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11)
Message boards :
Cafe SETI :
SETI@Home Dish Network
(Message 454963)
Posted 11 Nov 2006 by Scott Hackney
Post: Okay, I'm tired of just crunching data on my computer. I want SETI@Home to come up with a distributable controller program for globally synchronizing an @Home SETIdish Network. Or tell me why it can't be done. My guess is this, as people get fiber optically connected to the internet, millions of people can use radio dishes in their backyard to exponentially increase the collecting area for signal reception. Is this being done, are there plans to do this? If not, why not? Obviously, I can imagine that we would have a Global SETI Array utilizing receivers from around the world. I'll hook the program up to my computer, it will receive updates from SETI about where to point the dish and an automated motor will move the dish into configuration along with a million others around the globe. This will provide increased resolution as a result of the interferometry and also increased area for collecting interstellar signals. When will this happen? |
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12)
Questions and Answers :
Wish list :
I want to merge accounts
(Message 446113)
Posted 29 Oct 2006 by Scott Hackney
Post: Hello, I had a SETI@Home account in the 90s that was registered to my college email which is no longer active. I believe the password was one randomly generated by SETI@Home. Who would I talk to about re-activating that account & merging it with my current one? |
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