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[00:05] <natrium42> Dan-K2VOL: so.... when is launch?
[00:05] <natrium42> :)
[00:06] <NigeyS> oo this is funky .. http://sohowww.nascom.nasa.gov/data/LATEST/current_c3.gif
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[01:57] <Dan-K2VOL> Natrium42 launch is is soon as we get the darn telemetry systems working from end to end, and we get a good jet stream!
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[02:05] <natrium42> kk :)
[02:05] <Dan-K2VOL> I suspect we'll need to run a few more simulations, due to the immense number of remotely controllable commands we need to test
[02:05] <natrium42> what's the problem with telemetry?
[02:05] <Dan-K2VOL> Well, l've been out of the progress loop for 24 hours, so I'm not sure there's any remaining problems :-) work has been brutal today, going on hour 12 of it
[02:13] <griffonbot> @steamfire: On the brink of having a flight-ready trans-atlantic balloon program!!!! #arhab @LVL1WhiteStar http:whitestarballoon.org [http://twitter.com/steamfire/status/42769556573392896]
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[02:19] <natrium42> :)
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[02:24] <Zuph> ping natrium42
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[02:24] <Dan-K2VOL> ping zuph
[02:24] <Zuph> pong Dan-K2VOL
[02:25] <Dan-K2VOL> Any chance of taking a peek at that mini's power and network connections?
[02:25] <Zuph> just got your message
[02:25] <Zuph> hold please
[02:25] <Dan-K2VOL> Copy that
[02:25] <Zuph> It got turned off somehow. It's booting now
[02:25] <natrium42> hi Zuph
[02:26] <Zuph> How's it going this evening natrium42
[02:26] <natrium42> good, how are you?
[02:26] <Dan-K2VOL> Thanks friend
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[02:26] Action: natrium42 went to google campus today
[02:26] <Zuph> Doing well. Which campus? Mountain View?
[02:27] <natrium42> yeah
[02:27] <Randomskk> :o
[02:27] <natrium42> school friend works there
[02:27] <Randomskk> was it super awesome?
[02:27] <Zuph> Neat
[02:27] <natrium42> it was pretty cool
[02:27] <natrium42> it looked like a neat work environment
[02:28] <natrium42> so, everything ready for launch, Zuph?
[02:28] <Zuph> Nearly so. Just looking at adapting spacenear for our needs
[02:28] <Dan-K2VOL> namely human brain melting
[02:28] <Dan-K2VOL> shoot, that was supposed to be pm
[02:28] <Dan-K2VOL> Nevermind that
[02:29] <Zuph> hah
[02:29] <Dan-K2VOL> :-P
[02:29] <natrium42> Zuph: go nuts :D
[02:29] <natrium42> just make sure to wear protective goggles when looking at the code
[02:30] <Zuph> hah
[02:30] <Dan-K2VOL> Zuph, are we flying any sim right now?
[02:30] <Zuph> I shut down Bill's parser because it's beep was exceptionally annoying during the meeting.
[02:30] <Dan-K2VOL> Hehe I thouhgt i twould be
[02:31] <natrium42> Zuph: did Dan-K2VOL give you the login details?
[02:31] <Zuph> Negative
[02:31] <natrium42> you can just copy code & db from the server
[02:31] <Dan-K2VOL> Heh I couldn't figure them out
[02:31] <Dan-K2VOL> Meant to ask for a clarification there
[02:32] <natrium42> for login?
[02:33] <Dan-K2VOL> Yeah, pm to brad
[02:33] <Zuph> natrium42, see pm
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[04:19] <griffonbot> @PBH5: #PBH5 team is in final preparations for the PBH-13 mission planned for this weekend. Stay tuned for launch date/ time and band plan. #arhab [http://twitter.com/PBH5/status/42801239540502528]
[04:20] <Dan-K2VOL> Good to hear that
[04:23] <griffonbot> @PBH5: PBH-13 is the first mission for #PBH5 team and is aimed at breaking the #arhab high altitude record. Track PBH-13 @ projectbluehorizon.com [http://twitter.com/PBH5/status/42802062874001408]
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[09:31] <fsphil> cheapie chinese keyring camera has arrived .. and it's actually quite good
[09:31] <Darkside> little black thing/
[09:31] <Darkside> 2 buttons that work, 2 buttons that dont work?
[09:32] <fsphil> that's the one
[09:32] <Darkside> heh
[09:32] <Darkside> i have one too
[09:32] <Darkside> batteries are shit :P
[09:32] <Darkside> and teh video uses up a shitloads of space
[09:36] <fsphil> yea, 10 minute clip I took thismorning is 250mb
[09:37] <Darkside> yup
[09:37] <Darkside> MJPG
[09:41] <staylo> There's a HD version with H264 encoding now IIRC
[09:45] <Darkside> cool
[09:45] <Darkside> but i'd prefer a gopro
[09:45] <Darkside> lol
[09:48] <fsphil> wanna swap? :D
[09:48] <fsphil> I was gonna use this to video the burst, but there's no way it'll last that long
[09:49] <fsphil> I'll put it on anyway, video the launch
[09:49] <Darkside> heh
[09:49] <Darkside> activate it when you reach a certain altitude
[09:49] <Darkside> wire it up to a microcontroller or something
[09:49] <fsphil> was thinking that
[09:49] <fsphil> will take a peek inside later
[09:49] <Darkside> should be able to hook into the buttons i guess
[09:49] <fsphil> wondering if I can power it via usb
[10:01] <staylo> Only on the HD ones I think :/
[10:01] <Darkside> the black ones have a little lipo inside
[10:01] <Darkside> that'll be 3.7v ?
[10:01] <staylo> http://www.chucklohr.com/808/C11/index.html
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[10:43] <fsphil> "hope it can help your life safe and happiness" -- chingrish
[10:48] <fsphil> hmm.. it's improving: http://habhub.org/predict/#!/uuid=29119d17aeb115f3bdfd0b171450cb3ecc8b304a
[10:56] <GW8RAK> Aquatic on Sunday though
[10:57] <fsphil> yep, and it doesn't get better later in the week
[10:57] <GW8RAK> How much control do you have over the rate of ascent? Or do you have a target altitude?
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[11:17] <fsphil> sorry, was afk. I'd like a good altitude, but getting it back is more important. so I'll likely over-fill it a bit, get a higher ascent rate
[11:17] <fsphil> and a lower burst altitude
[11:23] <fsphil> something like this: http://habhub.org/predict/#!/uuid=3b508334201bf503413b4b741ce850a16adf4a0a
[11:24] <fsphil> though there's always the risk it's a better balloon than usual :)
[11:26] <fsphil> hmm.. the burst calculator on the predictor is giving funky results
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[12:33] <fsphil> garmin have an interesting definition of free map updates
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[12:56] <GW8RAK> Big companies always have strange definitions of free.
[12:58] <fsphil> emailed them, let see what excuse they come up with
[12:59] <fsphil> the update is £50 -- half the price of the unit
[12:59] <fsphil> would be cheaper for me to sell it, and buy a new one
[12:59] <GW8RAK> It will be an excuse acceptable to them, but not necessarily to you.
[13:00] <GW8RAK> And they wonder why piracy occurs.
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[13:08] <GW8RAK> It's getting warm in the office today. Spring is on it's way.
[13:09] <fsphil> woo-hoo!
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[13:11] <GW8RAK> And a BLT has just arrived.
[13:12] <fsphil> "Above 60 latitude the Sun would be even closer to the horizon, only 6.56 away from it" ... I wonder...
[13:14] <GW8RAK> One of my customers was showing me some photographs of launching weather balloons from the Eureka weather station in Arctic Canada recently. I wonder how much the helium costs up there?
[13:16] <fsphil> interesting that they don't use helium -- they could make it on site
[13:16] <fsphil> er, hydrogen
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[13:26] <Laurenceb> http://redlum.xohp.pagesperso-orange.fr/
[13:26] <Laurenceb> this guy is awesome
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[13:29] <GW8RAK> When Firefox crashes it does a good job of it.
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[13:31] <GW8RAK> Must reinstall Windows on this machine as it takes 5+ minutes to boot up.
[13:45] <fsphil> it doesn't take long before that happens to a fresh install anyway
[13:45] <GW8RAK> Never known it as bad as it is at present on 3 different machines. Somewhere there's a windows up date doing it I'm sure
[13:46] <fsphil> wow, dealextreme just shipped an order I made two weeks before christmas :)
[13:47] <GW8RAK> Second space walk this afternoon at 15.18
[13:47] <fsphil> ooh, must listen in on that
[13:47] <GW8RAK> Try to "do some paperwork" and sit in the office.
[13:48] <GW8RAK> Getting suited up now by the looks of it.
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[13:55] <SpeedEvil> fsphil: You're boasting about preferential treatment?
[13:56] <fsphil> haha, so three months is good for them?
[13:57] <SpeedEvil> Naah - not really.
[13:57] <SpeedEvil> But they aren't fast.
[13:58] <SpeedEvil> What you getting?
[13:58] <fsphil> a few lasers
[13:58] <SpeedEvil> I have a 50mW green laser module.
[13:58] <fsphil> <1mw red
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[13:58] <SpeedEvil> It's bright!
[13:58] <fsphil> yea I got one of those - it actually shipped within a week
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[13:58] <SpeedEvil> It's to reterofit into a laser level, with a dim/bright switch.
[13:58] <SpeedEvil> Bright for line mode
[13:59] <fsphil> I was able to shine a dot on some low cloud with it -- very neat
[13:59] <SpeedEvil> It is!
[13:59] <SpeedEvil> Also make a handy 'where is my car' locator.
[14:00] <fsphil> how'd you manage that?
[14:00] <SpeedEvil> Point it upwards, trigger on reciept of a command.
[14:00] <SpeedEvil> Look up
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[14:07] <GW8RAK> SpeedEvil. Is the projected spot in the shape of a bat?
[14:08] <SpeedEvil> It could be!
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[14:23] <Laurenceb> http://redlum.xohp.pagesperso-orange.fr/laser/ECDL.html
[14:24] <Laurenceb> you could try that
[14:25] <Laurenceb> stuff on that site is insane
[14:25] <Laurenceb> never realised it was possible, let alone diyable
[14:26] <Laurenceb> the spectrometer has 5ppm resolution ffs
[14:42] <Laurenceb> http://spacefellowship.com/Forum/viewtopic.php?f=23&t=12017&sid=cadf1e72c25f26eec0b82c703e2e278c
[14:52] <fsphil> I likes armadillo
[14:52] <Randomskk> has anyone here compiled dl-fldigi on os x?
[14:53] <Darkside> never managed to get it to work
[14:53] <Darkside> theres a built available, but it crashes after a bit
[14:53] <fsphil> never got that far with it either, setting up the build environment is a pain
[14:54] <Randomskk> I have the build environment and all the deps
[14:54] <Randomskk> but configure is getting a syntax error to do with curl
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[14:54] <fsphil> I think that's what stoped me too
[14:54] <fsphil> +p
[14:55] <Darkside> yep
[14:55] <Darkside> same
[14:55] <Randomskk> D:
[14:55] <fsphil> something to do with the version of curl that comes with the os I think
[14:56] <Randomskk> I have installed my own curl
[14:56] <Randomskk> maybe it's looking in the wrong place
[14:57] <Randomskk> I'll ask james next time I see him, I guess
[14:57] <Randomskk> binary works at least, bbl
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[15:33] <Group_O> Hibby: ping
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[16:03] <Hibby> griffonbot: pong
[16:06] <griffonbot> sup.
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[16:43] <NigeyS> meh silly russians, no soyuz flyabout :(
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[16:45] <fsphil> they're not rushin' that's for sure
[16:47] <NigeyS> haha good 1 phil :P
[16:47] Action: fsphil is already wearing his coat :p
[16:47] <NigeyS> lol out! ;)
[16:47] <fsphil> would've been neat to see the station and shuttle docked
[16:47] <NigeyS> yups, they always play spoil sport :(
[16:51] <fsphil> they might next time .. there's two more shuttle launches to the station I think
[16:51] <NigeyS> nah just watching the news conference now, won't be another opportunity .. :(
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[16:52] <fsphil> are they saying why they won't?
[16:55] <NigeyS> the soyuz 24 is a new series 700 on its maiden flight, it hadnt been tested with the flyabout profile
[16:55] <fsphil> fair enough reason
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[16:56] <NigeyS> yeah guess you cant blame them really, nasa wouldnt do it with any of their new vehicles i guess
[16:59] <spacefelix> LOL.
[16:59] <russss> they have an old Soyuz on station too
[16:59] <spacefelix> STS-134 and then STS-135 will be the last.
[16:59] <russss> but I don't think they can undock that one while the shuttle is docked
[16:59] <spacefelix> After that, it's on Mr. Musk and SpaceX.
[16:59] <spacefelix> Hmmm...
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[17:00] <spacefelix> Well, we had some debris on the liftoff for STS-133, we may require a Russian flyaround to check out Shuttle.
[17:00] <spacefelix> When it is docked.
[17:00] <russss> they decided that the debris required no further action
[17:00] <russss> I thought
[17:00] <spacefelix> Hmmmm.
[17:00] Action: spacefelix goes and looks for the paperwork.
[17:01] <russss> heh
[17:01] <NigeyS> lol
[17:01] <spacefelix> Ja. But realistically, it's a balance between what we need, schedule and risk.
[17:01] <spacefelix> If we have enough resources, no use spending the time and risk to do something already covered. :P
[17:01] <NigeyS> you ever get the feeling that sometimes things are over analysed?
[17:01] <spacefelix> Or we get into how many astronauts to change a light bulb.
[17:01] <spacefelix> LOLOLOLOLO!
[17:02] <spacefelix> Okay, so they put us through an exercise to introduce us to the way NASA does business.
[17:02] <spacefelix> They said 'Launch an estes Alpha II rocket to exactly 100 ms and land on a target. You have 3 motors to test and one to fly.'
[17:03] <spacefelix> And we had to go through flight reviews, material reviews, setbacks and ect using NASA procedures.
[17:03] <spacefelix> When it came time to determine how the wind affects our flight and landing, one team presented a HUGE spreadsheet to analyze the wind.
[17:04] <spacefelix> And we go '................. I think this is overanalyzed.'
[17:04] <NigeyS> hehehe oh dear
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[17:05] <spacefelix> The room concurs!
[17:05] <NigeyS> yey
[17:06] <spacefelix> Analysis paralysis = :C
[17:14] <spacefelix> Hmm,.
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[17:24] <mattltm> Hi all :)
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[17:36] <jcoxon> evening
[17:36] <mattltm> Hi :)
[17:44] <NigeyS> evening mattltm , jcoxon
[17:44] <mattltm> Ni Nigey :)
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[18:03] <SAIDias> Hello World
[18:03] Nick change: SAIDias -> W0OTM
[18:03] <mattltm> Hi :0
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[18:32] <fsphil> ahh, home at last
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[18:39] Nick change: laurence__ -> Laurenceb_
[18:39] <Laurenceb_> me too lol
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[18:43] <fsphil> nuts, I've managed to loose a strip of 330 ohm resistors in the chaos
[18:43] <mattltm> Opps
[18:43] <Laurenceb_> mving house?
[18:43] <fsphil> you'd think it lol
[18:43] <fsphil> just my rooms normal state
[18:44] <fsphil> can't be too far away
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[18:47] <mattltm> Clear sky? Go outside and look North West to see the ISS making a UK pass. Should be nice and bright :)
[18:47] Action: mattltm goes outside to see...
[18:48] <Laurenceb_> when?
[18:49] <mattltm> Now :)
[18:49] <mattltm> Direct up!
[18:49] <mattltm> for the next 2 minutes :)
[18:49] <fsphil> see it
[18:50] <fsphil> nice and bright
[18:50] <NigeyS> bah ill miss it by the time i get outside, tis nice when it goes past the field of view of the telescope mind
[18:50] <SpeedEvil> Meh.
[18:50] <SpeedEvil> Missed it.
[18:51] <SpeedEvil> Oh - nother pass in a bit.
[18:51] <mattltm> Man that thing moves fast!
[18:51] <SpeedEvil> 20:20
[18:51] <SpeedEvil> southwest here
[18:51] <mattltm> Next pass may be ok :)
[18:52] Action: mattltm sets alarm for 20:10 :)
[18:53] <NigeyS> blimey that last pass was mag -3.7
[18:53] <fsphil> it looked it
[18:53] <SpeedEvil> -2.4 here
[18:53] <Laurenceb_> hmf missed it
[18:53] <NigeyS> -1.4 for the next pass, thats still fairly bright
[18:53] <Laurenceb_> rather hazy to the south here
[18:53] <mattltm> I have an augmented reality app for the android that is great for looking at stars and sats :)
[18:54] <NigeyS> meh haze after sunset :(
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[18:57] <Laurenceb_> SpeedEvil: your laser ranging idea, with a single mode laser you could make it using optical coherence
[18:58] <Laurenceb_> if this actually works - http://redlum.xohp.pagesperso-orange.fr/laser/ECDL.html
[18:58] <SpeedEvil> yeah - I'm unsure if I could get the BOM as low that way though
[18:59] <Laurenceb_> itd be kind of cool to be able to see smoke for e.g.
[18:59] <Laurenceb_> -you can extract actual 3D reflectivity voxels
[19:00] <Laurenceb_> actually it needs to be swept, and that method fixes the modes, its need some mechanical way of moving the grating to sweep the modes
[19:00] Action: natrium42 throws a Jean-Louis Naudin at Laurenceb_
[19:01] <Laurenceb_> lmao
[19:01] <Laurenceb_> another crazy frenchman, but in a less awesome way
[19:01] <natrium42> hehe
[19:02] <SpeedEvil> http://bellard.org/
[19:02] <Laurenceb_> im still amazed by the spectometer http://redlum.xohp.pagesperso-orange.fr/laser/gratingOSA.html
[19:02] <SpeedEvil> Another completely awesome cheese-eating-surrender-monkey
[19:02] <fsphil> bellard is nuts, but in a cool way
[19:03] Action: SpeedEvil still remembers lzexe
[19:03] <fsphil> I mean, anyone who can do this isn't quite sane: http://bellard.org/dvbt/
[19:03] <SpeedEvil> yup
[19:03] <fsphil> shame he never followed it up though
[19:03] <SpeedEvil> tccboot is barking mad too.
[19:04] <fsphil> lol I'd forgot about that
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[19:06] <Laurenceb_> it needs some upconverting hardware plugged into the vga
[19:06] <SpeedEvil> I thought it just did it from the harmonics
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[19:07] <Laurenceb_> yeah, but surely thats a bit nasty if you want to use it with a transmitter
[19:07] <fsphil> it does
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[19:08] <fsphil> I don't think he ever intended it for serious use
[19:08] <Laurenceb_> well itd be a little naughty
[19:08] <Laurenceb_> to stick a huge power amp on the end
[19:08] <fsphil> maybe with a good notch filter
[19:08] <fsphil> er, bandpass filter
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[19:15] <fsphil> kaboom: http://www.flickr.com/photos/gsfc/5483193591
[19:16] <Laurenceb_> eek
[19:16] <Laurenceb_> glad im 1AU away from that
[19:17] <fsphil> poor messenger spacecraft!
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[19:17] <fsphil> Mercury is not the place to be when the sun gets active :)
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[20:05] <NigeyS> ello rjharrison_
[20:05] <Upu> evening all
[20:05] <NigeyS> hey upu
[20:05] <Upu> Hi NigeyS
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[20:05] <Upu> posted your temp sensors
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[20:06] <NigeyS> ah many thanks dude, let me know if you want anything in return
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[20:06] <Upu> no I'm cool was an accident anyway samples page broke and they sent me 6
[20:06] <NigeyS> i got the n-type connector this morning from rapid, so may do the antenna tonight or tomorrow
[20:06] <Upu> aye
[20:07] <Upu> I might just do an SMA based one
[20:07] <Upu> after seeing Robs antenna :)
[20:07] <NigeyS> oo
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[20:07] <rjharrison_> Evening all
[20:07] <Upu> evening Rob
[20:07] <rjharrison_> Hi NigeyS hos that pcb doing?
[20:07] <fsphil> the sma ones look cool
[20:07] <rjharrison_> Hi Upu
[20:07] <Upu> badly if he uses mine :)
[20:07] <NigeyS> slowly .. lol
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[20:09] <mattltm> I is back :)
[20:09] <Upu> welcome back
[20:10] <NigeyS> wb mattltm
[20:10] <NigeyS> evening jcoxon :-)
[20:10] <mattltm> Ohh... Next ISS pass due :)
[20:11] <NigeyS> 10mins for me :D
[20:11] <Upu> UK ? and can I pick it up on the radio ?
[20:11] <fsphil> 4 minutes here
[20:11] <NigeyS> yeah uk dude, phil said you might be able to get it on 2m
[20:11] <mattltm> Uk and dont think so.
[20:11] <fsphil> 145.800 if they're talking
[20:11] <Upu> k
[20:11] <fsphil> but with the shuttle there they might not
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[20:12] <rjharrison_> fm?
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[20:12] <mattltm> Yes, FM :)
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[20:14] <mattltm> fsphil: http://www.mattltm.co.uk/wp-content/uploads/2011/03/IMAG01661.jpg
[20:14] <mattltm> :)
[20:14] <fsphil> lol - you wasn't joking
[20:14] <mattltm> Taken this morning just befort I took it down!
[20:14] <mattltm> Got some strange looks :P
[20:15] <mattltm> I'm now trying to source a SCAM 12 mast for the garden :P
[20:15] <fsphil> oooh, getting some FM signals
[20:16] <mattltm> And I done a very bad thing and got an FT-8900 today :(
[20:17] <rjharrison_> mattltm that's what I have in the car it's a nice radio for ham but not much good for hab
[20:17] <rjharrison_> no USB :-)
[20:17] <fsphil> dropped it in the ocean bad?
[20:18] <mattltm> rjharrison_: I have an FT-857 for HAB :)
[20:18] <mattltm> fsphil: Spent money that should be going towards a wedding bad!
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[20:18] <fsphil> that's worse!! ;)
[20:19] <Upu> ah you see I had to get married before she'd let me buy the rado
[20:19] <Upu> radio
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[20:19] <fsphil> nothing heard from the ISS
[20:19] <mattltm> I may be speaking several octaves higher when the missus sees it :(
[20:19] <rjharrison_> I just got some audio
[20:19] <rjharrison_> 145.800
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[20:21] <Upu> got some HAM's speaking on 145.787
[20:22] <Upu> they aren't astronauts though, I don't think they speak broad yorkshire in space
[20:22] <Upu> I hear something on 145.800 hard to hear though
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[20:22] <rjharrison_> it might be splatter from the adjacet channel if they are txting wideband
[20:23] <fsphil> nothing on the waterfall either
[20:24] <Upu> its is from the other channel
[20:25] <fsphil> below my horizon now
[20:25] <fsphil> man that's fast :)
[20:25] <Upu> I love the way they say their call sign very professional at the star of each sentence then proceed to talk bollocks afterwards
[20:25] <Upu> start
[20:25] <mattltm> lol. Real hams.
[20:26] <rjharrison_> speed cams
[20:26] <Upu> yeah lol
[20:26] <Upu> same conversation :)
[20:26] <Upu> Andy and Russ :)
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[20:27] <Upu> Rob :)
[20:28] <Upu> am I going to meet these two tommorrow night ?
[20:30] <Upu> I'm going to North Wakefield Radio Club tommorrow night
[20:30] <fsphil> there's a 160m band net I hear most nights, seems to be centred around the yorkshire area
[20:30] <Upu> Rob do you have the address the website seems down
[20:30] <Upu> North Ardsley Cricket Club or something ?
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[20:31] <Upu> Doooooossbury
[20:31] <Upu> If this just looks one sided I'm listening to Rob
[20:31] <rjharrison_> hehe
[20:32] <Upu> rjharrison you got the address for the club ?
[20:33] <Upu> ah its ok I got it
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[20:34] <rjharrison_> which club
[20:34] <Upu> North Wakefield
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[20:34] <Upu> Going to see Andrew Walker tomorrow night
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[20:36] <Upu> come tommorrow night :)
[20:36] <GroupO> question guys, does anyone know if danielrichmans projects "alien" sent a sms to a phone via a cell network, or straight to radio?
[20:36] <mattltm> Good prop tonight on 2M. Just worked pd3mr from Kent with 10W!
[20:36] <Upu> would imagine to GSM once it was below a certain altitude GroupO
[20:37] <GroupO> kl, just im looking at the code he used and im trying to get an idea how to send a txt via the netwrok, because I dont have access to radios with the suitable frequency range
[20:38] <Upu> Where are you based GroupO ?
[20:38] <GroupO> glasgow
[20:38] <Upu> Well we have a fairly sizable network of listeners
[20:39] <Upu> however I understand the GSM only trackers aren't great as the GSM stops working above a certain altitude
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[20:40] <GroupO> yeh, i guess im just looking for the added security of receiving a txt on my phone from the payload when it lands
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[20:40] <rjharrison_> Upu phew
[20:40] <Upu> as for the code no idea :)
[20:40] <Upu> haha you're a brave man :)
[20:40] <rjharrison_> That's GB3YW
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[20:41] <Upu> GB3YW being a repeater ?
[20:41] <Hibby> GroupO: ping
[20:41] <fsphil> mattltm, meh -- I'll only be impressed if you can hear my payload on 434.650 now :)
[20:41] <GroupO> Hibby: pong
[20:41] <GroupO> hows it going? hangover? :)
[20:41] <Hibby> nope.
[20:42] <Upu> whats that morse code signify Rob ?
[20:42] <Upu> or is it morse ?
[20:42] <Upu> that
[20:42] <rjharrison_> Upu yes
[20:42] <Hibby> sorry I wasn't about today - had reports to do so locked out the outside world and lived in my room
[20:42] <rjharrison_> its morse saying GB3YW
[20:42] <Upu> I only know 4 letters in morse so far
[20:42] <Upu> ah
[20:42] <Upu> rgr
[20:42] <mattltm> fsphil: Its there in the noise :p
[20:43] <fsphil> lol
[20:43] <GroupO> Hibby: dont worry about it, i was only in for about 30 mins
[20:43] <Upu> anyway I'm going to see them tommorrow night
[20:43] <GroupO> have had some reports to do as well
[20:44] <rjharrison_> Upu North Wakefield is a great club
[20:44] <fsphil> my shift is too high
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[20:46] <mattltm> fsphil: you can get cream for that.
[20:46] <fsphil> resistance cream: apply thinly
[20:47] <mattltm> lol
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[20:49] <fsphil> aaah, the sound of rtty
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[20:50] <Upu> I love that sound
[20:51] <Upu> Quite looking forward to it rjharrison_
[20:51] <Upu> I went round to see M0HFX on Saturday, he took me through an foundation exam example and we had a good chat
[20:51] <Upu> His back garden is very impressive looks like GCHQ
[20:51] <fsphil> I've used the same resistors as last time, but for some reason I've got 600hz shift instead of 350
[20:52] <Upu> is this on a PCB ?
[20:52] <fsphil> breadboard for the moment
[20:52] <fsphil> same breadboard though
[20:53] <Upu> reseat them all
[20:53] <fsphil> good idea
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[20:58] <GroupO> Hibby: will you be in tomorrow?
[20:58] <Hibby> GroupO: aye, will be.
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[21:08] <DanielRichman> GroupO: the microcontroller was connected to a simple phone. When it had signal, the microcontroller would instruct teh phone to send a text straight to me with position info.
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[21:08] <DanielRichman> the code in sms.c is to get the microcontroller to produce AT commands for the phone
[21:08] <DanielRichman> there's an arduino-ported version.
[21:08] <DanielRichman> in misc-c/ or something
[21:08] <DanielRichman> bbl
[21:09] <jcoxon> yay - managed to communicate with my SPoT's satellite transmitter
[21:09] <GroupO> DanielRichman: thanks alot, i will have a look
[21:09] <GroupO> :)
[21:09] <jcoxon> didn't get the response i expected - but i got a response!
[21:10] <Randomskk> jcoxon: any tips on compiling dl-fldigi for mac? getting an error in configure about CURL, but have curl installed (via brew)
[21:11] <jcoxon> yeah curl is an arse
[21:11] <jcoxon> its been a while since i got it working on my system and have since been scared to change anything
[21:12] <Randomskk> so it's a system thing rather than an argument passed to configure or whatever?
[21:12] <jcoxon> i think its a location of library issue
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[21:13] <Randomskk> okay
[21:13] <Randomskk> might have a play
[21:13] <jcoxon> please do
[21:13] <jcoxon> and when you work it out tell me
[21:13] <Randomskk> haha, okay
[21:13] <jcoxon> LazyLeopard might have more info
[21:13] <jcoxon> as he has compiled it as well
[21:13] <Randomskk> okay
[21:14] <LazyLeopard> Been a while since I did, I fear...
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[21:16] <jcoxon> yay actually that was the right response
[21:16] <jcoxon> awesome
[21:16] <Randomskk> :D spot sounds fun
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[21:17] <jcoxon> slightly helped by the fact i actually have natrium's original hacked spot
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[21:23] <Zuph> ping jcoxon
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[21:30] <mattltm> Ohh. Eagle is fun!
[21:31] <jcoxon> hey Zuph
[21:31] <NigeyS> lol that's got to be a joke right ?
[21:31] <rjharrison_> nights guys
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[21:32] <fsphil> nasty eagles .. makes funs of us!
[21:32] <mattltm> I have just startedusing it :)
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[21:39] <x-f> 2wwwwwwwwwwwww';[[gfffffffffffffffffffffffffffffffff
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[21:42] <Upu> cat on keyboard ?
[21:42] <NigeyS> lol
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[22:10] <jcoxon> on an arduino/avr how can i do this multiplication
[22:10] <jcoxon> 52.101 * 2^23
[22:10] <DanielRichman> I presume it just Doesn't Work.
[22:11] <fsphil> 52.101 * pow(2, 23)?
[22:11] <jcoxon> just about to try
[22:11] <DanielRichman> Can a float hold a number that large? I doubt it.
[22:11] <DanielRichman> what are you trying to achieve?
[22:11] <jcoxon> basically to encode the lat and lon to tx over SPoT
[22:11] <jcoxon> natrium42 found that it is:
[22:11] <jcoxon> lat * 2^23 / 90
[22:12] <DanielRichman> as an integer or a float?
[22:12] <jcoxon> lat is initially a float
[22:12] <fsphil> if 2^23 is a constant, then replace it with 529?
[22:12] <fsphil> no wait
[22:12] <DanielRichman> 8388608
[22:12] <jcoxon> and the result is an int
[22:12] <DanielRichman> but gcc can do that for you
[22:12] <russss> well, value << 23 is the same as value * 2^23
[22:12] <DanielRichman> for integers, russss
[22:13] <russss> ah true
[22:13] <jcoxon> http://natrium42.com/projects/spot/
[22:13] <jcoxon> see 2.1.4
[22:13] <russss> floats is tricky business.
[22:13] <fsphil> is ^ for power, or XOR?
[22:13] <DanielRichman> if it doesn't work, you could multiply it by enough 2s to get the siginificant figures you want "out of the decimal point" area, cast it to a 32 bit integer and use bit shifting to do the last step
[22:13] <natrium42> yeah, what russss says
[22:13] Action: russss would perhaps convert to a long first and be done with it
[22:13] <natrium42> and, uh, you are not doing it that often, so might as well use floating point...
[22:14] <jcoxon> hey natrium42
[22:14] <natrium42> o/
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[22:14] <jcoxon> manged to comm with the module
[22:14] <natrium42> coolz
[22:14] <jcoxon> have the setup bit all working
[22:14] <natrium42> nice, so i did get the wiring diagram correct :D
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[22:15] <DanielRichman> hold on a second. On that webpage the latitude and longitude are 3 bytes
[22:15] <russss> I would also be slightly worried that dealing with such a big number would bring you into the realms of float precision issues.
[22:15] <DanielRichman> i.e. 2^24
[22:16] <DanielRichman> so if you're dividing by 90 and then multiplying by 23 means that you could think of the latitude as a large decimal number
[22:16] <DanielRichman> where 000000 is 0 and 0fffff is 90 degrees
[22:16] <DanielRichman> (right?)
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[22:16] <natrium42> something like that
[22:16] <natrium42> you don't need float anyway
[22:16] <Zuph> Orbcomm has a real simple algorithm for that.
[22:16] <Zuph> Hold please
[22:16] <natrium42> dividing by 2^23 is same as >> 23
[22:17] <DanielRichman> so perhaps you could divide it by 90 to get some sort of fraction; then turn it directly from there into some sort of binary fixed point number?
[22:17] <DanielRichman> s/from there/from float/
[22:17] <natrium42> just use integers large enough to do the calculation
[22:17] <DanielRichman> :P
[22:17] <natrium42> and divide last
[22:18] <russss> yeah, if you care about performance you're certainly better off massaging it into a long and bitshifting
[22:18] <DanielRichman> if you have a latitude as decimal degrees * 10^6 you could put it in a 32bit integer, << 23 and divide by 90000
[22:18] <DanielRichman> avoids floats
[22:18] <russss> although perhaps GCC will sort that for you
[22:18] <jcoxon> currently its a float
[22:18] <DanielRichman> how did it become a float?
[22:18] <natrium42> russss: yeah, code readibility > *
[22:19] <natrium42> gcc is smart enough to turn mult/div by powers of 2 into shifts
[22:19] <jcoxon> oh i mean my lat/lons are float on my normal code
[22:19] <Zuph> http://dl.dropbox.com/u/13484341/ORBCOMM%20Serial%20Specification%20Rev_G.pdf
[22:19] <Zuph> Page 83.
[22:19] <Zuph> 82, pardon.
[22:19] <russss> natrium42: although, considering you're poking stuff into least significant bits you could argue that the bitshift operator makes *more* sense.
[22:19] <Zuph> Converts normal float lat/lon into 3 byte geodetic.
[22:19] <natrium42> true
[22:20] <natrium42> jcoxon: i just used floats :P
[22:20] <jcoxon> cool cool
[22:20] <natrium42> it's only done every couple of minutes
[22:20] <jcoxon> sparked a nice discussion though
[22:20] <jcoxon> yes indeed
[22:20] <natrium42> who cares about efficiency
[22:20] <jcoxon> keeps the mcu warm
[22:20] <natrium42> hehe
[22:21] <jcoxon> can't really get it through more often then that any way
[22:21] <DanielRichman> the example code from Zuph seems to be the same as what natrium42 is suggesting except it divides first (?)
[22:21] <DanielRichman> there are various ways you could avoid doing most of the work in floats which I would reccommend, but if it already works, who cares.
[22:21] <natrium42> the only thing is that float library is included
[22:21] <natrium42> so binary size is larger
[22:22] <natrium42> but i guess you were already using floats
[22:22] <jcoxon> exactly
[22:22] <DanielRichman> and they're sloow
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[22:35] <Laurenceb_> not that slow on avr
[22:35] <Laurenceb_> if you use the right atmega and library
[22:35] <Laurenceb_> 130clk for float multiply
[22:36] <Laurenceb_> compared to 50clk on arm7tdmi with keil
[22:36] <Laurenceb_> add is similar
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[22:42] <fsphil> yes! 350hz shift again
[22:42] <NigeyS> yey ! what brought up to 600 ?
[22:42] <NigeyS> it*
[22:43] <fsphil> the way I'd it setup was very sensitive to tiny changes in resistance
[22:43] <fsphil> only 5 ohm difference made the shift really big
[22:43] <NigeyS> blimey
[22:43] <fsphil> so used bigger resistors .. must less fussy
[22:44] <LazyLeopard> ...and hopefully less temperature-variable?
[22:45] Action: LazyLeopard remembers more than one flight where shifts did intereting things as temperatures changed...
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[22:46] <GW8RAK> Evening NigeyS
[22:46] <fsphil> doubt it :) the crystal will slow with temperature
[22:46] <NigeyS> evening GW8RAK
[22:46] <fsphil> howdy GW8RAK
[22:47] <fsphil> though I used so much insulation last time, the frequency was pretty stable
[22:47] <fsphil> I think the temperature in the box actually went up
[22:47] <GW8RAK> Evening fsphil. Just a quick question Nigey. Have you ever played with radio astronomy?
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[22:47] <GW8RAK> It's a long term interest and although I've found what appears to be the UK radio astronomy website, it hasn't been updated since 04.
[22:48] <GW8RAK> I wonder if you have any information.
[22:49] <NigeyS> i haven't yet, but it is something i'd like to get into though
[22:49] <NigeyS> definately has its pro's when compared to optical astronomy
[22:49] <GW8RAK> There seems to be an active group of amateurs in the US, but Europe seems a bit more limited.
[22:50] <GW8RAK> There is a European group, but they also seem to be inactive.
[22:50] <NigeyS> yup, i noticed that aswell, you maybe able to get some info on any U.K clubs etc from jodrell bank
[22:51] <GW8RAK> Good idea. It's not far from here and I want to go over there sometime.
[22:51] <LazyLeopard> GW8RAK: Activity is on a couple of Yahoo groups, baa-rag and UKRAA-instruments. See also http://www.britastro.org/radio/ and http://www.ukraa.com/www/
[22:51] <fsphil> now that'd be a good trip
[22:52] <GW8RAK> Thanks LazyLeopard. I knew that had to be a group of some description.
[22:52] <NigeyS> oh aye, would love to go see that beast in person, photos dont do it justice!
[22:52] <GW8RAK> I've seen it a few times, but no close up.
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[22:53] <GW8RAK> I wonder if UKRAA grew out of the ashes of UKRANET?
[22:53] <NigeyS> hmm quite possibly
[22:54] <GW8RAK> Similar to the weather satellite people. One group had a big bust up and a new one sprang up.
[22:54] <LazyLeopard> Far as I know, UKRAA came out of the BAA radio astronomy group
[22:54] <GW8RAK> The UKRAA website looks like a good read.
[22:55] <LazyLeopard> It's a bit incomplete, but things are being worked on.
[22:57] <GW8RAK> My main interest would be to get a simple map of the sky showing radiation sources. It doesn't need to be fantastically high tech, but it would be satisfying.
[22:57] <GW8RAK> 406MHz is very achievable.
[22:58] <NigeyS> oo
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[22:58] <fsphil> you've got most of what you need already?
[22:58] <GW8RAK> Plenty of equipment and a tv yagi would get me started.
[22:58] <NigeyS> id start with a small area, around the plough, lots of radio sources there
[22:58] <mattltm> Hi all :)
[22:58] <NigeyS> wb matt
[22:59] <mattltm> ta :0
[22:59] <fsphil> g'day mattltm
[22:59] <mattltm> Had to walk the dog
[22:59] <GW8RAK> It's that sort of thing I'm thinking off. Nothing too extreme and I'm not ambitious enough to map the whole sky. Just test the receiver, prove it works and that would do me.
[22:59] <GW8RAK> Evening mattlm
[23:00] <mattltm> Hi :)
[23:00] <fsphil> are there any pulsars that can be detected with standard amateur gear?
[23:01] <GW8RAK> The biggest problem I envisage is getting sufficient resolution and source separation.
[23:01] <LazyLeopard> The BAA projects have aimed mainly at Solar activity, one way or another.
[23:02] <GW8RAK> Once the better weather comes I want to try some Jovian reception. The sun isn't that interesting to me.
[23:03] <NigeyS> fsphil, that's a good question!
[23:03] <fsphil> not getting anything on google about it
[23:03] <LazyLeopard> Over in the US there's the Radio Jove project: http://radiojove.gsfc.nasa.gov/
[23:03] <W0OTM> http://www.youtube.com/user/SAIDiasMobile#p/u/0/bmL6zHsVwKg
[23:03] <W0OTM> My new fill device
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[23:07] <fsphil> well made W0OTM
[23:08] <W0OTM> think that will work?
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[23:09] <fsphil> should do the job nicely
[23:11] <fsphil> I'm still at the hose + duct tape stage
[23:12] <W0OTM> LOL
[23:12] <W0OTM> we all been there
[23:13] <W0OTM> im trying to design a system that would allow my and my wife to launch, without the need for a whole launch crew
[23:13] <NigeyS> i like that harness you use
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[23:14] <W0OTM> the nylon harness around the payload?
[23:14] <NigeyS> yup
[23:14] <W0OTM> my wife sewed that:)
[23:15] <NigeyS> :o .. looks perfect for the job!
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[00:00] --- Thu Mar 3 2011