#internetarchive.bak 2016-07-10,Sun

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02:35 🔗 rrn Hi guys! I found this absurd offer---a 4 TB HDD for $20, incl. shipping: http://www.ebay.com/itm/G-Technology-4TB-G-DRIVE-G1-USB-3-0-Hard-Drive-0G03594-/122039930897?hash=item1c6a259011:g:0zAAAOSwRS9Xf9RL
02:36 🔗 rrn most likely it's a mistake and the seller will refund all the purchases made, but who knows?
02:37 🔗 rrn By the way, I'm the one who purchased 50 of them :).
03:06 🔗 JesseW rrn: awesome!
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04:50 🔗 rrn I'm definitely going to join this project, even if I don't get those HDDs :).
04:52 🔗 rrn I wonder if the Internet Archive includes the entirety of WP.
04:54 🔗 rrn OSM would be another good candidate, if not already included.
04:57 🔗 db48x WP?
05:02 🔗 JesseW Wikipedia, I presume.
05:03 🔗 JesseW rrn: It does have a number of wikipedia dumps, yes.
05:03 🔗 JesseW I'm not sure if it has every single one ever released, though.
05:03 🔗 db48x occasionally: https://archive.org/search.php?query=wikipedia%20wikiteam
05:04 🔗 JesseW that's search will just show archiveteam stuff -- I think there are non-archiveteam copies also on IA
05:11 🔗 db48x true
05:17 🔗 db48x plus the wayback machine
05:17 🔗 JesseW well, I hope there aren't many wikipedia *dumps* in the wayback machine...
05:17 🔗 JesseW that would be kinda silly
05:18 🔗 db48x why?
05:19 🔗 rrn db48x: B/c articles tend to be incremental, with past history summarized and placed into a historical section.
05:19 🔗 db48x they also tend to get deleted :P
05:19 🔗 JesseW dumps are rather large, and in my (imperfect) understanding, that's not preferable for stuff in the Wayback Machine...
05:20 🔗 JesseW rrn: wait, what?
05:21 🔗 * JesseW has been prompted into trying to figure out whatall wikipedia stuff is on IA
05:22 🔗 JesseW http://archiveteam.org/index.php?title=Wikipedia has a lot of links
05:26 🔗 rrn this is great---so I'm in the process of volunteering CPU and GPU power, triaxial accelerometer readings for a non-profit earthquake monitoring project, microwave beacon transmitter, and now storage space!
05:27 🔗 JesseW nice
05:29 🔗 rrn JesseW: microwave beacons seem to be the rarest and most esoteric (and most expensive and difficult) project out there.
05:30 🔗 JesseW hm, link?
05:31 🔗 rrn JesseW: There is no centralized website per se, just a bunch of outdated beacon lists; I believe that there are only 20--30 of such sites in the entire US.
05:31 🔗 JesseW no, I mean, a link *describing* what it means to provide a "microwave beacon transmitter"
05:32 🔗 rrn JesseW: Look up ``radio propagation beacon'' on WP or something.
05:33 🔗 JesseW oh cool
05:33 🔗 rrn I'm actually working on 10 GHz...that stuff is expensive!
05:34 🔗 JesseW we should probably take this to #archiveteam-bs
05:34 🔗 JesseW so, for your microwave one -- what band?
05:35 🔗 rrn X band, specifically 3 cm
05:36 🔗 rrn e.g., like the *most* cheapest reasonable amplifier (used and probably from the 80s) costs in the range of $480
05:36 🔗 JesseW for 10GHz?
05:36 🔗 rrn 6--12 GHz, 1 W
05:37 🔗 rrn There are TWT amplifiers from the 60s but the TWT won't last long, so that's a no-no for a 24/7 beacon.
05:38 🔗 JesseW so, who do you work with to make tests of your microwave beacon? presumably you need someone far away to find out if it got picked up...
05:38 🔗 rrn I have a 12 GHz SA, high-end compterized microwave power meter, and 18 GHz frequency counter.
05:39 🔗 rrn I'll hook up the last two eventually for automated self-test via GPIB, when I get to writing the self-test subsystem software.
05:41 🔗 rrn expensive, but at least this stuff maintains its value rather than turning into trash exponentially as in the case of IT equipment
05:41 🔗 JesseW so, I'm *very* ignorant of this stuff -- are you able to make tests of the microwave propagation directly yourself, or do you merely transmit, and need others to report back where they were able to receive your signals?
05:42 🔗 rrn They'll report back with an email typically; in the past, people wrote for QSL cards via the mail.
05:42 🔗 JesseW what's a SA?
05:43 🔗 rrn spectrum analyzer
05:43 🔗 JesseW ah, makes sense
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05:44 🔗 JesseW what are some of the farthest distances that you've gotten reports from?
05:45 🔗 rrn I'm still working on setting it up.
05:45 🔗 JesseW ah, ok
05:45 🔗 rrn It'll vary widely b/c of rainscatter and snowscatter.
05:46 🔗 JesseW so you have the equipment for the microwave beacon, and are working on setting it up -- and you're researching the costs for the equipment for a 10Gz beacon
05:47 🔗 rrn Well I have a high-end signal generator already; I just need a horn, more waveguide and cable, and an amplifier.
05:47 🔗 JesseW nods
05:48 🔗 rrn And of course a FreeBSD or GNU/Linux server with audio card.
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05:50 🔗 rrn Low frequency stuff (like 1--2 GHz) is much cheaper, so it shouldn't be very difficult to be the first entity in the world to open an active SETI station.
05:50 🔗 JesseW hah
05:51 🔗 rrn But I got a nice German-made, computerized signal generator that operates on like 10--18 GHz or so for almost peanuts, so I'm stuck on this band.
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