highaltitude.log.20151222

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[01:01] <Laurenceb_> omg omg omg
[01:01] <Laurenceb_> http://forum.nasaspaceflight.com/index.php?topic=39004.msg1460784#msg1460784
[01:01] <Laurenceb_> /troll
[01:03] <russss> that thread
[01:03] <russss> I cannot deal with it
[01:04] <SpeedEvil> sigh
[01:10] <Laurenceb_> so much tldr... absolutely no data
[01:12] <russss> spacex's webcast PR game is pretty slick these days
[01:18] <DrLuke> https://www.youtube.com/watch?v=O5bTbVbe4e4
[01:18] <DrLuke> \o/
[01:18] <DrLuke> it begins
[01:22] <mattbrejza> will the landing be streamed?
[01:22] <russss> apparently so
[01:22] <mattbrejza> ooh
[01:25] <SpeedEvil> The landing site is within range of thousands of people with imagers
[01:25] <SpeedEvil> so delaying providing video has no point
[01:26] <mattbrejza> not entirely sure i would want to be one of those people
[01:26] <adamgreig> worst case you livestream a well cool video
[01:28] <Laurenceb_> here goes
[01:28] <Laurenceb_> inb4 terminated at T- 0.5
[01:30] <mattbrejza> potato cam
[01:33] <adamgreig> wonder if we'll get cams from onboard first stage
[01:33] <adamgreig> 2nd stage is exciting etc but don't really care about it for now
[01:35] <mattbrejza> theyre a bit overexcited over there
[01:35] <adamgreig> six months of pent-up excitement
[01:35] <russss> they were happy that the first stage worked
[01:35] <adamgreig> yes yes i know what an orbit is
[01:36] <adamgreig> back to the control loop please :X
[01:36] <adamgreig> i want a webcast for people who just want to hear people talk rocket into their headsets
[01:36] <adamgreig> or a premium rate phone line
[01:36] <SpeedEvil> adamgreig: quite
[01:36] <russss> haha
[01:36] <SpeedEvil> Imagine quality video from S1
[01:36] <SpeedEvil> through reentry
[01:37] <SpeedEvil> Hopefully in a day or two
[01:37] <adamgreig> are there engine burns between deploys?
[01:38] <adamgreig> it's all after seco..
[01:38] <mattbrejza> 3 burns on the way down i think?
[01:38] <adamgreig> no of the upper bits
[01:38] <adamgreig> ugh yea these three people are frustrating
[01:38] <adamgreig> yes yes we've heard this analogy for hitting the moon with apollo
[01:38] <adamgreig> the miracle of closed loop feedback control
[01:38] <mattbrejza> its like having three richard hammonds
[01:38] <adamgreig> yay landing pad view
[01:39] <adamgreig> oh snap
[01:39] <kc2pit> Holy shit.
[01:39] <mattbrejza> now they can get excited
[01:39] <kc2pit> That is less fire than I expected.
[01:40] <adamgreig> haha yea they all look pretty thrilled
[01:40] <SpeedEvil> Jesus that's pretty
[01:40] <Laurenceb_> oh my god
[01:40] <adamgreig> oh no "USA USA USA"
[01:40] <SpeedEvil> kc2pit: yeah - the landing burn is called 'hoverslam' - it decellerates at well over 1G
[01:40] <adamgreig> hahaha
[01:40] <SpeedEvil> as it has way more thrust than weight
[01:41] <kc2pit> SpeedEvil: No, I meant I expected it to end in the same, um, abrupt and exothermic manner as the previous attempts.
[01:41] <SpeedEvil> ah
[01:41] <SpeedEvil> With luck, there will be more fire from the rocket soon.
[01:41] <SpeedEvil> (relaunch)
[01:41] <kc2pit> Hawthorne, California's blood alcohol content just started rising considerably, I think.
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[01:43] <adamgreig> haha this guy is babbling
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[01:43] <adamgreig> boop
[01:44] <mattbrejza> so 11 washing machine sized lions are being deploted
[01:44] <adamgreig> no no, they're freezer sized
[01:44] <mattbrejza> oh silly me
[01:45] <kc2pit> Lion sized washing freezers look pretty cool deploying.
[01:46] <russss> 11 washing machine-sized lions, or one lion-sized washing machine?
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[01:46] <adamgreig> he said the total mass was the same as an adult lion, but that would be one hell of a lion
[01:47] <russss> I like their deploymentcam
[01:47] <SpacenearUS> New vehicle on the map: 03CALLSIGN123_chase - 12http://tracker.habhub.org/#!qm=All&q=CALLSIGN123_chase
[01:47] <adamgreig> yea that's very cool
[01:48] <mattbrejza> persumably these satellites have little trusters to position themselves evenly
[01:48] <SpacenearUS> New vehicle on the map: 03pu2rey_chase - 12http://tracker.habhub.org/#!qm=All&q=pu2rey_chase
[01:48] <adamgreig> i imagine they have thrusters or similar but wonder how you get a well distributed constellation from one launcher orbit
[01:49] <SpeedEvil> adamgreig: they are concealing their development of genetically engineered tesla-lions.
[01:49] <mattbrejza> perhaps just takes a while if you dont use that much propellent
[01:49] <adamgreig> hmm yea
[01:49] <adamgreig> maybe
[01:50] <mattbrejza> hmm no re-entry cam :(
[01:50] <kc2pit> Heh.
[01:50] <russss> yeah they are going to test the mvac relight
[01:50] <russss> but we don't get to see that
[01:50] <Laurenceb_> I thought the stage was going to burn up on the pad
[01:50] <Laurenceb_> but looks like it went out
[01:50] <Laurenceb_> need photos
[01:52] <russss> yeah just an exposure thing I think
[01:52] <Laurenceb_> grr need high res photos
[01:52] <Laurenceb_> I want to see how singed it is
[01:53] <mattbrejza> hopefully there are closer cameras that we'll see in time
[01:53] <Laurenceb_> yeah
[01:53] <Laurenceb_> want to see onboard video from it
[01:54] <russss> I want to see how close it is to the X
[01:54] <Laurenceb_> heh who cares
[01:54] <Laurenceb_> its good enough
[01:55] <SpeedEvil> :)
[01:55] <SpeedEvil> They'll be releasing good video tomorrow at teh latest I guess
[01:55] <SpeedEvil> http://imgur.com/gallery/VRbh5tH (on the topic of hyperloop) (not really)
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[03:33] <adamgreig> https://twitter.com/elonmusk/status/679142215981993984
[03:47] <lz1dev> pretty sweet landing
[03:48] <adamgreig> yea for sure
[03:49] <lz1dev> espectially enjoyed the guy shouting 'we fucking did it'
[03:49] <adamgreig> and the chants of USA USA USA
[03:49] <lz1dev> nah
[03:50] <lz1dev> that i didnt enjoy
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[05:53] <adamgreig> russss: looks like very close to the X: https://www.youtube.com/watch?v=ZCBE8ocOkAQ
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[06:37] <SpacenearUS> New vehicle on the map: 036-YOU_chase - 12http://tracker.habhub.org/#!qm=All&q=6-YOU_chase
[06:38] <SpacenearUS> New vehicle on the map: 03eat my potatoes_chase - 12http://tracker.habhub.org/#!qm=All&q=eat%20my%20potatoes_chase
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[08:47] <Vaizki> nice landing indeed. surprised they didn't have ginormous floodlights illuminating tha landing to get better visuals
[08:47] <SpacenearUS> New vehicle on the map: 03pu2rey_chase - 12http://tracker.habhub.org/#!qm=All&q=pu2rey_chase
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[08:57] <eroomde> Vaizki: more stuff to crash into, maybe
[08:57] <Vaizki> nah I mean on the ground, pointing up.. just for show :)
[09:00] <Vaizki> and I need to fix my nick, I have no idea why it keeps getting capitalized.. could be a ZNC thing :P
[09:00] Nick change: Vaizki -> vaizki
[09:01] <vaizki> oh. oh. it's a nickserv auth issue
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[09:11] <AndyEsser> vaizki: what's your hatred for capitals?!
[09:11] <AndyEsser> Are you... Capitalist?
[09:11] <AndyEsser> :P
[09:11] Action: AndyEsser chuckles to himself
[09:12] Action: vaizki hands Andy his coat
[09:13] <fsphil> don't be so (case) insensitive
[09:13] <vaizki> you guys need coffee as much as I do
[09:13] <AndyEsser> vaizki: waiting for it to cool down
[09:13] <vaizki> or overnight stewed tea
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[09:16] <AndyEsser> vaizki: I don't have a coat today
[09:16] <eroomde> i have alovely coat
[09:17] <eroomde> but i'm not giving it to anyone
[09:17] <vaizki> lovely coat of fur?
[09:17] <gonzo_> and a wet nose?
[09:18] <eroomde> i'm lost already
[09:20] <vaizki> and I don't hate capitals, I started out as VAIZKI
[09:20] <vaizki> on the uni vax minis..
[09:22] <vaizki> I feel a bit old again.. :(
[09:22] <AndyEsser> jeje
[09:22] <AndyEsser> hehe*
[09:24] <AndyEsser> vaizki: you're not old, you're experienced ;)
[09:25] <vaizki> that's what i tell the girls
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[09:49] <AndyEsser> after 118 days, our leased line is finally installed :)
[09:49] <fsphil> nice. what speed?
[09:49] <AndyEsser> 20/20 on a 100 mbit bearer
[09:54] <mfa298> and if that was VM theyde probably have told you they could do it in 14 days initially.
[09:57] <AndyEsser> nah, we were warned that leased lines had a 100 day bearer
[09:57] <AndyEsser> but we had to have BT come out about 4 times to run the fibre due to various issues
[09:57] <AndyEsser> (first one being we had a tree in our duct...)
[09:57] <AndyEsser> 100 day lead time*
[10:05] <vaizki> eh.. why would anyone run 20/20 on fiber :O
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[10:06] <AndyEsser> vaizki: because we don't need speed as much as reliability
[10:06] <vaizki> at least here the fiber is the real cost, the bandwidth on top is just peanuts
[10:06] <vaizki> 100/100 costs maybe 20% more than 10/10
[10:07] <AndyEsser> Sadly, not here :P
[10:07] <vaizki> we have for reliability dual providers with 100/100 fiber .. and running BGP
[10:07] <AndyEsser> I think the difference between 20/20 and 100/100 is about £400/month
[10:07] <vaizki> a bit overkill I admit but at least it Always Works :D
[10:08] <AndyEsser> true
[10:09] <AndyEsser> we don't need the BGP bit as it's not services hosted here really that matters - we have our phones going over the Leased Line (at least will do when I've finished configuring stuff) and our current FTTC lines have latency and drop out spikes fairly often
[10:09] <vaizki> yea we don't host services either, we just remotely support systems all over the world
[10:09] <AndyEsser> interesting... using BGP seems a bit excessive then
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[10:09] <AndyEsser> would it not make more sense for your remote sites just to have the both WAN IPs in their allow rules?
[10:09] <vaizki> the SLA is 10 minutes for response and 1h for resolution typically and they pay through the nose
[10:10] <AndyEsser> nice
[10:10] <vaizki> hehe well the remote sites are not under our control really and there's vpns galore
[10:11] <vaizki> we have enough issues maintaining a single set of VPNs into these systems as the customers keep breaking them..
[10:11] <AndyEsser> haha
[10:11] <AndyEsser> fair enough
[10:11] <vaizki> RIPE rips us off but otherwise the BGP is real simple
[10:11] <AndyEsser> we had BGP at my last place to help with reliability and stuff
[10:11] <vaizki> and of course we get a /20 .. .)
[10:12] <vaizki> instead of 5 IPs per ISP..
[10:12] <vaizki> but I gotta go to a meeting
[10:12] <AndyEsser> we had some ridiculous number of IPs at my last job - but can't remember how many
[10:12] <AndyEsser> 6 DC's around the world
[10:12] <AndyEsser> and our servers didn't support NAT, so needed a WAN IP for every server
[10:12] <AndyEsser> *shudder*
[10:28] <AndyEsser> watching the Space X video
[10:28] <AndyEsser> the control room just looks like a bunch of Googlers
[10:29] <AndyEsser> such a contrast from NASA launches
[10:29] <AndyEsser> ha
[10:33] <fsphil> wonder if spacex accept paypal
[10:34] <fsphil> the paypal fees would be impressive
[10:34] <AndyEsser> heh
[10:39] <Hiena> Oh, they will, they will....
[10:39] <AndyEsser> just finished watching the launch
[10:39] <AndyEsser> very cool
[10:40] <Hiena> Mr. Musk would be amused. Such a customer, paying two times for a single purchase...
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[10:55] <SpeedEvil> Lauch - meh.
[10:55] <SpeedEvil> landing - Woooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo
[10:55] <SpeedEvil> o
[10:56] <AndyEsser> i used launch as a way to describe the wholet hing
[10:56] <AndyEsser> whole thing*
[10:56] <AndyEsser> but yes, landing > launch
[10:56] <AndyEsser> :P
[10:56] <fsphil> lunch .... yeeeeehaaaaar
[10:58] <realborg> i tried to calculate gravity and centripetal force for the iss, the concorde and a balloon: http://piratepad.net/gqwIrELXDt
[10:59] <realborg> there must be some mistake or correction i need for the iss
[11:00] <SpeedEvil> you've probably screwed up the orbit
[11:00] <SpeedEvil> In practice, it doesn't matter
[11:01] <SpeedEvil> What happens in that case is yes, you need a force to maintain a circular orbit
[11:01] <SpeedEvil> but if you let it go, it will simply pop into a slightly lower epileptical orbit
[11:03] <realborg> but interesting that the concorde could generate up to 2.4% of lift by sheer altitude and angular velocity
[11:04] <x-f_> epileptical orbit?
[11:04] <realborg> (and passengers would have felt that much lighter)
[11:04] <SpeedEvil> x-f_: yeah - I need more coffee
[11:05] <x-f_> or less :)
[11:11] <AndyEsser> ha, I hadn't even noticed :P
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[16:13] <Laurenceb_> I was looking over the Spacex launch, stage 2 has thrust to weight of < 1 at ignition
[16:14] <adamgreig> huh
[16:14] <adamgreig> eh
[16:14] <adamgreig> it's already in orbit though
[16:14] <SpeedEvil> Not really
[16:14] <adamgreig> or pretty well close to it
[16:14] <SpeedEvil> It's going at ~2-3km/s
[16:14] <adamgreig> it's not thrusting only against its weight
[16:14] <SpeedEvil> Well, well under orbital
[16:15] <adamgreig> hmm
[16:15] <SpeedEvil> It only manages as it accellerates horizontally fast enough so thateffective gravity falls to 0
[16:16] <adamgreig> oh 5000km/h not 5km/s, it's only like 1.4km/s
[16:18] <Laurenceb_> guess there should be some specs somewhere
[16:18] <Laurenceb_> but space shuttle was similar
[16:18] <Laurenceb_> after SRBs fell off thrust to weight was <1
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[17:42] <Hiena> T/W has only meanings when there is no other components (speed, gravity, accelerations) at play. How many times splattered a high T/W ratio fighter plane at airshows, due the misscalculation of the kinematic forces? At planetary scale speeds, on orbital paths, you could accelerate and change altitude even with a small fraction of T/W.
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[17:43] <M6JNJ> aa
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[17:45] <eroomde> Hiena: i'm not sure i agree with that but it might have been a bit lost-in-translation
[17:46] <eroomde> really the intuitive block with t/w <1 is where your thrust vector is relative to your gravity vector
[17:46] <eroomde> if you're going straight up it's very relevant, if you're going at 90 degrees to the local gravity vecotr it's irrelevant
[17:46] <eroomde> and in between it depends on where you are in your stage of flight, as you say
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[17:59] <Hiena> Yes. When you moves on circular path, and your thrust tangential to your path, it will increase your angular speed which increase the centripetal force. You could have 0.8 T/W for the second stage if you have enough angular speed to compensate the gravity with centripetal force.
[17:59] <Hiena> And here is a good example, the misscalculation of the mass and velocity: https://youtu.be/gcfFTZmq7wM?t=70
[18:00] <russss> https://www.flickr.com/photos/spacexphotos/23273082823/in/dateposted/
[18:01] <russss> not sure they're going to get it into that van
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[18:06] <eroomde> tanks are empty
[18:06] <eroomde> they should pack down small
[18:07] <fsphil> aww, Mars Insight is delayed (or cancelled). http://www.cbc.ca/news/technology/mars-insight-1.3376624
[18:08] <russss> heh, just pull a vacuum on the tanks
[18:13] <eroomde> i hope they won't cancel completely
[18:13] <eroomde> it's unusual to not fly a set of scientific instruments if you've got some
[18:13] <eroomde> they are usually the primary thing around which missions are built
[18:13] <fsphil> yeah. not sure what the launch window is, but they might wait for the next mars-earth alignment in 2 years
[18:16] <fsphil> looks like the falcon hit its target perfectly
[18:17] <fsphil> it's so weird seeing a rocket come down like that
[18:17] <eroomde> pretty sweet :)
[18:21] <fsphil> https://youtu.be/B5pTDx-hFDc?t=80
[18:21] <fsphil> what made the sonic boom?
[18:22] <eroomde> rocket set
[18:22] <eroomde> hat time is the boom?
[18:22] <eroomde> what time*
[18:23] <fsphil> 1:59 in that video
[18:23] <fsphil> just after the engine cut out on the lander
[18:23] <eroomde> ah i got it
[18:23] <eroomde> yep
[18:23] <eroomde> well, the shockwave
[18:23] <eroomde> from when it was supersonic, much higher
[18:23] <fsphil> nice double one
[18:24] <eroomde> it was supersonic up at whatever tens of km, so it'd take tens of s for the shockwave to propagate to the observers
[18:24] <fsphil> earlier in the clip you can see the engine lighting up much higher up
[18:24] <fsphil> so that might have been slowing it to sub-sonic
[18:25] <eroomde> quite poss
[18:25] <fsphil> I've never heard a sonic boom. that's on my list
[18:25] <eroomde> i would just be speculating, but i imagine it'd be easier to fly subsonic
[18:26] <eroomde> i've not heard one either of any particular note
[18:26] <eroomde> i'd like to
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[18:55] <quemazon_> Hi, I'm looking for some help on planning a balloon project. Specifically, I have questions on low temp. effects.
[18:56] <fsphil> fire away
[18:56] <eroomde> You'd better ask them, then.
[18:56] <quemazon_> I want to use an arduino, LoRa radio, and ublox GPS. Small, and low power. Do I need to bother with heaters?
[18:56] <eroomde> no
[18:57] <fsphil> what battery?
[18:57] <quemazon_> lithium
[18:57] <quemazon_> cr123
[18:58] <fsphil> these? http://www.maplin.co.uk/p/cr123-lithium-camera-3v-battery-1-pack-n07bx
[18:59] <quemazon_> also, do servos have issues at high altitude?
[18:59] <quemazon_> yes
[18:59] <eroomde> can do - the greese can become almost solid. solution: clean off the grease
[19:00] <quemazon_> good to know about the grease.
[19:00] <fsphil> rechargable batteries will have a problem with the cold
[19:00] <quemazon_> are there any good (recent) return-to-sender glider projects out there>
[19:00] <quemazon_> ?
[19:00] <eroomde> no
[19:01] <eroomde> it's illegal in the uk as-is
[19:01] <fsphil> the non-rechargable lithiums should be fine
[19:01] <eroomde> falls foul of all the uav restrictions, so it's not been much persued
[19:02] <Hiena> eroomde: How about the uncontrolled aerodynamic bodies?
[19:02] <quemazon_> bummer. I would like to build one. I want it to be micro sized to keep the per-launch cost down
[19:03] <eroomde> Hiena: a parachute?
[19:03] <fsphil> bbl
[19:03] <quemazon_> I'm in the US, and I don't believe there are legal issues here.
[19:03] <Hiena> Nope. Gliders and lifting bodies.
[19:04] <SpeedEvil> 'toy' payloads - lifting gliders to 70m might be fun
[19:04] <SpeedEvil> and legal
[19:05] <Laurenceb_> I was wondering why spacex do so many burns
[19:05] <Laurenceb_> well - more than two
[19:05] <quemazon_> I'm thinking an inherently stable air frame with rudder control only.
[19:05] <Laurenceb_> wondering if its to reduce heating
[19:05] <Laurenceb_> or maybe relights dont "cost" too much
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[19:06] <SpeedEvil> Laurenceb_: one 'boostback' - to get back to the takeoff site. One entry burn, and one terminal
[19:06] <Laurenceb_> yeah but why the entry burn
[19:06] <SpeedEvil> I assume it's to reduce peak heating and keep the engin bells stable
[19:06] <SpeedEvil> they are quite fragile to external forces off-axis I guess
[19:07] <SpacenearUS> New vehicle on the map: 03CALLSIGN123_chase - 12http://tracker.habhub.org/#!qm=All&q=CALLSIGN123_chase
[19:07] <Lunar_Lander> hello
[19:07] <eroomde> quemazon_: while interesting and the right way to do it technically, i think, it'd still not be permitted without an exemption
[19:08] <quemazon_> eroomde, does this include the USA?
[19:09] <eroomde> i think so, but don't know
[19:09] <eroomde> i believe the laws are different but similar
[19:10] <quemazon_> I'll have to look into it.
[19:11] <eroomde> it's cool though
[19:11] <eroomde> worth doing if you can find a legislative gap
[19:14] <eroomde> jcoxon: lol at twitter
[19:14] <eroomde> the best project manager you could ask for
[19:24] <Laurenceb_> quemazon_: I launched a rogallo wing in 2009
[19:24] <Laurenceb_> seems like a good way to do it (imo.. but then I would say that)
[19:25] Action: Laurenceb_ wonders what the L/D of Falcon stage "flying sideways" would be
[19:25] <Laurenceb_> I guess the engine mass sort of rules that out
[19:30] <eroomde> good d tho if you can manage it
[19:30] <eroomde> a good way to shake off KE
[19:31] <Laurenceb_> I'm confused
[19:31] <Laurenceb_> https://pbs.twimg.com/media/CW2g5d2WwAQpIJV.jpg
[19:31] <Laurenceb_> is there a kerosene tank above and below the LOX tank ?
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[20:02] <Laurenceb_> http://forum.nasaspaceflight.com/xindex.php,qaction=dlattach,3Btopic=39004.0,3Battach=1088884,3Bimage.pagespeed.ic.56VH_55TX2.jpg
[20:02] <Laurenceb_> what could possibly go wrong
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[20:07] Nick change: [1]michal_f -> michal_f_home
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[20:12] <SpeedEvil> hmm
[20:13] <SpeedEvil> what's that, 50R assuming, 200V?
[20:13] <SpeedEvil> Though of course reflections may change that
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[20:35] <jarod> https://twitter.com/frosland/status/679398900944515074 <--- This just happened...
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[20:44] <Laurenceb_> aha found the specs, stage 2 thrust to weight is around 0.7 at ignition
[20:44] <Laurenceb_> similar to shuttle
[20:52] <dbrooke> from the telemetry on the video, it continues to decelerate for about 20s after 2nd stage ignition, obviously at a reducing rate
[20:53] <Lunar_Lander> jarod, scary
[20:55] <Laurenceb_> dbrooke: depends how they define velocity
[20:56] <Laurenceb_> it should be a vector :P
[21:00] <dbrooke> yes, it just says "speed"
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[21:11] <SpacenearUS> New vehicle on the map: 03
[21:11] <SpacenearUS> Pu2rey_chase - 12http://tracker.habhub.org/#!qm=All&q=%0APu2rey_chase
[21:18] <Hiena> Man, i hates to bake with volatile salt. My kitchen reeks as a chemistry lab.
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[22:06] <Laurenceb_> https://www.youtube.com/watch?v=IvWBf1IjzrY&feature=share
[22:24] <SpacenearUS> New position from 03PS-57 after 0310 hours silence - 12http://tracker.habhub.org/#!qm=All&q=PS-57
[22:27] <Laurenceb_> still going strong
[22:29] <jcoxon> Laurenceb_, perhaps going to cross the equator?
[22:29] <SA6BSS-Mike> I was worried there for a moment, no call back in 10 hours :)
[22:30] <Laurenceb_> this could be interesting
[22:30] <SA6BSS-Mike> that would be the first time, verry unusual if that happens
[22:30] <Laurenceb_> that'd be a first
[22:30] <Laurenceb_> Hysplit says def
[22:31] <SA6BSS-Mike> I got the rx goinf for both wspr and jt9 for ps-57
[22:31] <SA6BSS-Mike> last night it got to 3 eu stations on wspr tonigt probably some more in range
[22:31] <Laurenceb_> well we will know in a few hours I guess
[22:35] <Laurenceb_> getting receivers in the US, should be good overnight
[22:36] <Laurenceb_> heh it could even head up towards Spain
[22:36] <SA6BSS-Mike> yeah, and nice temp on board, batt should be fully charged
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[22:41] <vaizki> chavez will shoot it down
[22:41] <Laurenceb_> lul
[22:41] <vaizki> oops sorry chavez is dead
[22:42] <Laurenceb_> killed by reptilians
[22:43] <vaizki> I was there on that square in front of the state oil company building in 2002 when they had the coup attempt
[22:43] <vaizki> was an interesting day
[22:45] <Laurenceb_> I thought you were from Finland?
[22:45] <SA6BSS-Mike> he is a globetrotter :)
[22:46] <vaizki> I used to travel a bit.. now less so
[22:47] <vaizki> Movilnet (cellular operator) in Venezuela was our customer
[22:47] <vaizki> but I was going to visit Digicel whose HQ was on that same square as PDVSA
[22:48] <vaizki> so I called the customer from the front doors that heeeey where are you guys, the doors are locked and I can't see anyone inside
[22:48] <vaizki> and the customer told me on the phone that there's 100 000+ people coming that way, get the hell out of there
[22:49] <vaizki> sorry not customer, prospect :)
[22:49] <SA6BSS-Mike> :)
[22:49] <vaizki> now the country has gone totally to shit.. so sad
[22:51] <vaizki> a friend of mine helped broker a yacht deal there and sailed the boat later to Tampa.. he was so scared of going to the city that he slept in a sleeping bag in the dockyards inside some pipe
[22:51] <vaizki> because it was a well guarded and lit area
[22:52] <vaizki> this was last year and I hear it's just gone downhill even since
[22:52] <vaizki> ok the scotch is getting to my english
[22:54] <gonzo_nb> you are turning scotish then?
[22:54] <SA6BSS-Mike> SAQ is onair 17.2khz cristmas eve @ 7,30 - 8,10 utc fore anyone interesed to test their vlf gear
[22:55] <Ian_> That is the generator VLF tx I guess?
[22:55] <gonzo_nb> I usually have a listen, but all my antennas are offline at the mo
[22:55] <vaizki> gonzo_nb: I did like it up in Orkney at least, diving's good, whiskey is good (having Highland Park 1996 right now) and not too crowded :)
[22:55] <SA6BSS-Mike> yes
[22:55] <gonzo_nb> notboth at the same time vaizki !
[22:57] <vaizki> ok so chrome crashed and won't start any more.. sigh...
[22:57] <SpacenearUS> New vehicle on the map: 03KC2DIJ-1 - 12http://tracker.habhub.org/#!qm=All&q=KC2DIJ-1
[22:58] <SA6BSS-Mike> thats cool "The Alexanderson alternator is driven by a 600 horse power asynchronous two phase 2300V electric motor, driving the high frequency generator via a gear box"
[22:59] <Lunar_Lander> btw
[22:59] <gonzo_nb> it was a cw signal gen in the days of spark transmitters
[22:59] <Lunar_Lander> SpaceX 1st stage landing HYPE!
[23:02] <vaizki> what.. SAQ was is use up to 1996?? :O
[23:02] <Lunar_Lander> NICE! :D
[23:02] <Lunar_Lander> where?
[23:02] <gonzo_nb> not sure about that. I's breen a museum piece for a long time
[23:02] <vaizki> Until the 1950s, the Grimeton VLF transmitter was used for transatlantic radio telegraphy to Radio Central in Long Island, New York, USA. From the 1960s until 1996 it transmitted orders to submarines in the Swedish Navy.
[23:02] <vaizki> according to wikipedia
[23:03] <Lunar_Lander> cool
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[23:05] <vaizki> 1.9km long antenna on six 127m high pylons.. serious antenna :P
[23:06] <vaizki> I have to show that to the wife. stop complaining about my tiny antennas.
[23:06] <gonzo_nb> the transmitter site was used till recently, but the mechanical transmitter was replaced in 1920 by a valve tx
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[23:14] <vaizki> hmm, http://www.grimeton.info/the_end_of_grimeton.html left me with the impression that the alternator was used up to 1996
[23:14] <vaizki> I think the valve tx was for a higher frequency
[23:15] <vaizki> anyway, nice that they have it running still
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[23:27] <vaizki> my hh spectrum analyzer only goes down to 100kHz so can't use that to listen in on SAQ.. hmm have to cook up something to catch it and amuse the kids
[23:29] <vaizki> everything I have seems to start at 100kHz except maybe plugging an antenna into a soundcard
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[23:31] <vaizki> half wave antenna only 8700 meters
[23:32] <vaizki> I guess I need to finish my miniwhip tomorrow then
[23:57] Action: Laurenceb_ was reading about muscle wire actuators
[23:58] <Laurenceb_> apparently they are actually useful if you immerse in water
[23:58] <Laurenceb_> about 2khz response
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[00:00] --- Wed Dec 23 2015