highaltitude.log.20110217

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[00:32] <fsphil> first xchat crash
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[00:43] <NigeyS> :o you crashed xchat?!
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[01:31] <juxta|console> fsphil: if you're still about, I am having some success in CAT using the flrig helper program
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[04:34] <juxta_> ping shenki, Darkside
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[04:44] <Dan-K2VOL> hola
[04:44] <Dan-K2VOL> on video here doing final payload seal-up!
[04:44] <Dan-K2VOL> over the next hour
[04:45] <Dan-K2VOL> http://ustre.am/oIad
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[06:01] <Darkside> juxta_: pong
[06:01] <Darkside> my HF amp kit works :D
[06:02] <Dan-K2VOL> nice darkside
[06:02] <Dan-K2VOL> final payload assembly now darkside http://ustre.am/oIad
[06:02] <Darkside> about to make a blog post
[06:03] <Darkside> and upload pics
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[06:21] <Dan-K2VOL> cool
[06:36] <Darkside> http://blog.darklomax.org/?p=23
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[07:07] <Dan-K2VOL> night all, payload together finally.
[07:07] <x-f> good night
[07:07] <x-f> and good morning to Europe
[07:07] <natrium42> nite dan
[07:07] <natrium42> good work!
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[07:39] <jcoxon> morning all
[07:45] <natrium42> hi jcoxon
[07:46] <juxta_> hi jcoxon
[07:46] <jcoxon> hey juxta_ natrium42
[07:46] <griffonbot> @LVL1WhiteStar: payload box ready for glue! How's it coming @PBH5 ? #arhab #HAB http://gdzl.la/9iSyGU http://gdzl.la/9iSyHC http://gdzl.la/9iPr8a [http://twitter.com/LVL1WhiteStar/status/38142277331197953]
[07:46] Action: jcoxon is hacking dl-fldigi in preparation for the trans-a flights
[07:47] <juxta_> ooh - what's new in it jcoxon?
[07:47] <juxta_> I notice it now does GPS upload to the tracker :D
[07:47] <jcoxon> juxta_, so there is an issue with its dominoEX decoding
[07:47] <jcoxon> multipsk outperforms in a hab situation
[07:48] <jcoxon> so we've added 2 sliders so you can adjust some of the settings to try and optimise your decoding
[07:48] <juxta_> ah I see
[07:48] <jcoxon> also as wb8elk tx's dominoEX then 2 rtty strings i've added autoswitch
[07:48] <jcoxon> so once its detected a dominoEX string it switches to rtty
[07:49] <jcoxon> therefore you maximise your chance of decoding something
[07:49] <juxta_> oh cool
[07:49] <juxta_> trans-a will be running HF?
[07:49] <jcoxon> the problem is that if it fails to detect a string it won't switch modes
[07:49] <jcoxon> yeah
[07:49] <juxta_> yeah - it would be nice to sync that with data from other listeners
[07:50] <jcoxon> in theory his txing is time dependent...
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[07:53] <fsphil> jcoxon, for the windows build can you update hamlib to 1.2.12
[07:53] <fsphil> seems to work a bit better
[07:54] <juxta_> hey fsphil
[07:54] <juxta_> better - but not quite right
[07:54] <juxta_> however I did find a solution that works for the most part
[07:54] <jcoxon> okay - guess we need to adapt the windows build script
[07:54] <jcoxon> currently the dependencies are built
[07:55] <juxta_> if I use flrig, all the functions (qsy etc) work correctly & without big delays
[07:56] <juxta_> it looks as though the auto-tuning doesn't tune the radio when XML-RPC CAT is being used though
[07:56] <juxta_> ping Darkside
[07:57] <fsphil> will test that when I get home ... of to work I go...
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[07:57] <juxta_> okay - have a good day :)
[08:03] <jcoxon> hmm that seems to work okay
[08:04] <jcoxon> i'm going to add 'no_strings' to the xml
[08:04] <jcoxon> so that people can define if they are going to repeat their strings
[08:08] <juxta_> jcoxon, is there a way to bring up the log display in dl-fldigi (ie error/debug log)?
[08:17] <jcoxon> on linux and mac it goes to the terminal
[08:17] <jcoxon> thats how we debug normally
[08:17] <jcoxon> just open the binary and watch all the lines
[08:28] <jcoxon> hmmmm have we always searched for $$+callsign when extracting strings?
[08:43] <jcoxon> ping fsphil when back
[08:50] <fsphil> sorta about, may be laggy
[08:50] <jcoxon> have we always searched for $$ + callsign?
[08:51] <jcoxon> i used to be just $$ before we started decoding
[08:51] <fsphil> it's been like that since the new version at least
[08:52] <jcoxon> i've been running those tests with my autoswitch code
[08:52] <jcoxon> as it requires $$WB8ELK before it decodes it means we miss strings
[08:52] <jcoxon> throwing my auto_switch
[08:53] <jcoxon> sure the strings we miss won't pass checksum
[08:53] <jcoxon> but i'm wondering if we should just search for $$ rather than $$+callsign
[08:54] <fsphil> or just callsign?
[08:54] <fsphil> the checksum doesn't include the $$'s
[08:57] <jcoxon> true
[08:57] <jcoxon> so if i just search for $$ my autoswitching is better
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[09:01] <fsphil> might upload more bad lines?
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[09:01] <jcoxon> hmmm git just ate all my work
[09:02] <jcoxon> as i didn't seem to be on my master branch
[09:03] <fsphil> urg, that's happened me a few times
[09:04] <fsphil> was messing about with branches, lost stuff
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[09:04] <fsphil> it's not very forgiving of mistakes
[09:09] <jcoxon> right well back to the beginning
[09:12] <NigelMoby> Morning
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[09:15] <fsphil> monin
[09:25] <NigelMoby> Hey Phil, how's you this morning?
[09:25] <fsphil> mostly awake! you?
[09:26] <NigelMoby> Coffees kicking in slowly
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[09:35] <fsphil> nearly tea time here, and a nice bowl of cocopops. that'll wake me up
[09:36] <NigelMoby> Lol cocopops rock!
[09:36] Nick change: TangoAlpha_ -> TangoAlphaWork
[10:02] <fsphil> shot from last nights launch: http://www.esa.int/images/003_L,11.jpg
[10:02] <fsphil> they had a camera onboard and didn't shot it .. pooh
[10:02] <fsphil> shot/show
[10:05] <fsphil> even better, the launch photographed from the ISS: http://www.flickr.com/photos/magisstra/5452332407/
[10:11] <Dooberry> Rubbish Jeremy Kyle this morning
[10:11] <Dooberry> really put my day out of sync...
[10:12] <GW8RAK> The word rubbish is superfluous in any sentence also containing "Jeremy Kyle" :0
[10:12] <Dooberry> Heh
[10:12] <Dooberry> love that ISS shot fsphil
[10:17] <Laurenceb> ...
[10:17] <Laurenceb> Jeremy Kyle
[10:17] <Laurenceb> WTF why would you willingly watch that
[10:18] <NigelMoby> Lol morning Laurenceb
[10:18] <Laurenceb> hi
[10:18] <NigelMoby> Not a fan? :p
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[10:33] <GW8RAK> I can't understand why anyone would want to go on that show and publicly humiliate themselves.
[10:34] <NigeyS> id rather have my nuts scraped with barbed wire tbh :p
[10:34] <jcoxon> isn't that the same thing
[10:34] <NigeyS> lol
[10:34] <GW8RAK> Sounds quite nice in comparison
[10:34] <NigeyS> off topic, but this seems very interesting...
[10:34] <NigeyS> A team of researchers has developed a technology that has the potential to double the speed of wireless radios – such as those used by Wi-Fi – by allowing signals to be received and transmitted simultaneously.
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[10:35] <NigeyS> full duplex wifi anyone? :D
[10:36] <GW8RAK> Does it really need a team of researchers to reinvent the wheel?
[10:37] <NigeyS> apparently so, and it was thought impossible
[10:37] <SpeedEvil> It's never been impossible, it's bloody annoying.
[10:37] <SpeedEvil> As the dynamic range, or the required circulators and such are annoying
[10:38] <NigeyS> fair point
[10:38] <Dooberry> Good for low ping Halo Reach
[10:38] <NigeyS> :p
[10:50] <Laurenceb> i was wondering about how gps on smartphones copes with the gsm tx
[10:51] <SpeedEvil> Filters.
[10:51] <SpeedEvil> The upcoming 4G is depressing though in the US
[10:51] <SpeedEvil> they picked a band for high power stuff right next to GPS
[10:51] <Laurenceb> oops
[10:52] <Laurenceb> is it really possible to filter that well when the antenni is practically the same
[10:52] <Laurenceb> voltages into the gps ant must be huge
[10:52] <SpeedEvil> Dunno - I know there are several filters in the path, and the ant itself is tuned.
[10:53] <SpeedEvil> I should do some tests.
[10:53] <Laurenceb> was wondering if the gps is temporarily disabled
[10:54] <Laurenceb> especially after looking at the chipworks iphone4 teardown
[10:54] <Laurenceb> the ir proximity sensor is interesting - disables the touch screen when its up to your ear
[10:55] <Laurenceb> http://www.chipworks.com/en/technical-competitive-analysis/resources/recent-teardowns/2010/06/silicon-teardown-of-the-apple-iphone-4-smart-phone/
[10:59] <staylo> I thought that was fairly common? (Proximity sensor)
[11:00] <Laurenceb> dunno lol
[11:03] <SpeedEvil> They are
[11:03] <SpeedEvil> essentially all smartphones have them
[11:03] <SpeedEvil> otherwise you get face-touches which make the user mad.
[11:13] <Laurenceb> http://gb.mouser.com/ProductDetail/Texas-Instruments/CC1020EMK-433/?qs=sGAEpiMZZMu3sxpa5v1qroDOrhu0OI%252b5/O5nTZ5V8cE=
[11:13] <Laurenceb> cc1020 is in stock at mouser, if anyone wants to make an sdr
[11:14] Action: SpeedEvil wants you to make it, and sell it inexpensively.
[11:14] Action: SpeedEvil is lazy.
[11:14] <Laurenceb> heh
[11:14] <SpeedEvil> Also - way too many fun things to be distracted by.
[11:14] <Laurenceb> price is slightly annoying, but you get 2 in the kit
[11:14] <SpeedEvil> latest shiny thing is if it's possible to DIY a heatpump.
[11:15] <Laurenceb> peltier are too inefficient right?
[11:15] <SpeedEvil> Sort-of.
[11:15] <SpeedEvil> At 15C they are not actually that bad.
[11:15] <SpeedEvil> The problem is, it's really hard to make use of this.
[11:16] <Upu> Is the NOTAM application form on the UKHAS site the most up to date ?
[11:16] <Upu> Morning BTW :)
[11:17] <SpeedEvil> The current losses are proportional to I^2, the heatpumping proportional to I, and the thermal 'short' is proportional to temp.
[11:17] <SpeedEvil> This means that if you run them at 1/4 delta-t and not more than half power, you can get COP of ~3
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[11:25] <NigeyS> morning Upu, i think its up to date
[11:30] <Upu> ok thanks
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[11:54] <fsphil> there is a newer one Upu, but they'll still accept that one
[11:54] <Upu> you got the newer one ?
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[12:01] <fsphil> Just a PDF copy, can't be filled in
[12:01] <fsphil> there's very little difference
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[12:03] <fsphil> oh, there's a newer version again
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[12:04] <fsphil> you'll be fine with the older version, they've never questioned it when I used it
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[13:12] <Upu> ok cheers fsphil
[13:12] <Upu> I'll fill that out
[13:13] <fsphil> it's the maps I have a problem with, the landranger series are GB only
[13:22] <Dooberry> Random question: is anyone aware if a high alt balloon has ever been sent up during a period of visible Aurora Borealis?
[13:22] <Dooberry> Obviously with a camera attached
[13:22] <Dooberry> would be interesting to see what kind of shots would be returned.
[13:25] <x-f> i afraid, aurora requires long exposure time
[13:26] <x-f> and that would mean blurry photos
[13:26] <x-f> but it would be interesting, yes
[13:26] <x-f> (i have yet to see my first aurora)
[13:26] <Dooberry> hmm, what about with a HD camcorder?
[13:27] <Dooberry> me either - never seen it
[13:27] <x-f> i know it has been photographed from IIS
[13:27] <x-f> ISS*
[13:27] <Dooberry> lots of news articles around about all of the recent solar activity
[13:27] <Dooberry> and how the Aurora should be visible across the northern parts of the UK
[13:27] <Dooberry> sadly not for me in London :/
[13:27] <Dooberry> got me thinking anyways...
[13:29] <fsphil> wasn't visible last night, when I looked anyway
[13:29] <fsphil> the moon was probably too bright
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[13:29] <Dooberry> I think they're saying it's the next couple of days that will be the most likely
[13:30] <fsphil> the moon will still be there unfortunately
[13:31] <fsphil> full moon too -- it'll need to be a bright aurora
[13:31] <Dooberry> bah, shame.
[13:31] <x-f> yeah, bad timing
[13:32] <fsphil> I've only seen the aurora once, but it was amazing
[13:32] <Dooberry> Shots from space are incredible though - http://mikechristie.files.wordpress.com/2010/03/aurora_borealis.jpg
[13:32] <Dooberry> would love to send a balloon up with a HD camcorder, see what the results would be.
[13:35] <fsphil> http://en.wikipedia.org/wiki/File:Aurora_Australis_From_ISS.JPG
[13:36] <Dooberry> whoaa
[13:36] <Dooberry> s3x0ry
[13:36] <Darkside> Dooberry: we've done HD cameras, but only in the daytime
[13:36] <Darkside> night-times launches are problematic when tryint to recover the payload..
[13:37] <Dooberry> indeed - you'd need some of those COD:MW2 night vision goggles :p
[13:40] <fsphil> wonder if there'd be much difference from 30km anyway
[13:41] <x-f> at least cleaner atmosphere
[13:41] <x-f> from particles and light pollution
[13:56] <fsphil> mist and fog forecast for here tonight, hopefully there'll be gaps
[13:56] <SpeedEvil> IME, you need really, really clear skies to hope to see aurora in nonideal conditions
[13:57] <fsphil> I might drive up the local big hill
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[13:59] <fsphil> the aurora is pretty weak right now
[14:03] <fsphil> "The calm before the storm. Three CMEs are enroute"
[14:03] <Dooberry> hmm, I wonder at what altitude the reaction takes place at?
[14:03] <fsphil> lovely
[14:04] <Dooberry> Lower Thermosphere I presume?
[14:04] <Dooberry> from those photos from the ISS it definately looks higher than Stratosphere
[14:06] <Dooberry> aye it is, so you're right; the only difference would probably just be less light polition and cleaner air
[14:07] <x-f> 200-300 km - http://odin.gi.alaska.edu/FAQ/#altitude
[14:07] <Dooberry> and perhaps a better view of it over a slight curvature
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[15:07] <Elwell> Used to live at ~56 degrees N -- cracking winter auroras as a kid (and dark skies too)
[15:08] <Elwell> actually make that 57.5 :-)
[15:08] Action: fsphil waves from 54.6 degrees :)
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[15:25] <Laurenceb> norway?
[15:25] <Laurenceb> kenya
[15:25] <Darkside> lions and tigers?
[15:26] <fsphil> 54.6 N :p
[15:26] <Darkside> where the giraffes are
[15:26] <Darkside> and the zebraaaaaaaaaa
[15:27] <Darkside> night all...
[15:27] <Laurenceb> yup
[15:27] <Darkside> 2am here :<
[15:27] <fsphil> night DS!
[15:30] <fsphil> snow in the jet streams, now that's something I wouldn't have expected
[15:31] <fsphil> (just reading the speedball-1 launch email)
[15:33] Dan-K2VOL (~Adium@74-143-44-42.static.insightbb.com) joined #highaltitude.
[15:33] <fsphil> hey Dan-K2VOL, just reading that email
[15:38] <Dan-K2VOL> hi fsphill
[15:38] <Dan-K2VOL> cool
[15:39] <fsphil> is there any kind of prediction as to where it will go?
[15:39] <Dan-K2VOL> sure
[15:39] <Dan-K2VOL> hysplit is running daily
[15:40] <Dan-K2VOL> but
[15:40] <Dan-K2VOL> of course every day it's different
[15:40] <fsphil> naturally :)
[15:40] <Dan-K2VOL> it's landfall is still varying from as high as the arctic circle to as low as Morocco
[15:43] <Laurenceb> when is launch?
[15:44] <Dan-K2VOL> fsphil, can you forward it to the UKHAS group? are you on that list Laurenceb?
[15:44] <Laurenceb> i dont seem to be
[15:44] <fsphil> will do
[15:44] <Dan-K2VOL> hmm are you on any balloon email lists Laurenceb?
[15:45] <Laurenceb> laurence <dot> blaxter <at> btinternet <dot> com
[15:45] <Laurenceb> i used to be
[15:45] <Laurenceb> seem to be missing emails now
[15:45] <Dan-K2VOL> to make a long story short, we have no idea, as we have to wait for the jet stream to be continuous from me to you
[15:45] <Laurenceb> not sure who could add me
[15:47] <x-f> that message won't be posted on WhiteStarBalloons webpage?
[15:47] <x-f> Laurenceb, if you mean UKHAS list, you can add yourself
[15:48] <imrcly> nope, it will only go out as telegrams
[15:48] <Laurenceb> oh doh
[15:48] <Dan-K2VOL> oh I gues it could be couldn't it x-f
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[15:48] <Dan-K2VOL> why not
[15:48] <Dan-K2VOL> I'll do it
[15:49] <jcoxon> afternoon
[15:49] <Dan-K2VOL> hey jcoxon
[15:49] <jcoxon> Dan-K2VOL, so you guys are going for it :-)
[15:49] <Dan-K2VOL> damn straight
[15:49] <jcoxon> excellent
[15:49] <Dan-K2VOL> I haven't slept more than 4 hours any night this week
[15:49] <jcoxon> haha
[15:49] <jcoxon> well good luck
[15:49] <jcoxon> i'm off tonight
[15:50] <imrcly> i got 5 today i overslept
[15:50] <Dan-K2VOL> let me know someday how many years I'm shaving off my productive lifespan
[15:50] <Dan-K2VOL> nice imrcly
[15:50] <Dan-K2VOL> I would hve too if Molly hadn't dragged me out of bed
[15:50] <jcoxon> Dan-K2VOL, will monitor from a distance over twitter
[15:50] <jcoxon> sad to miss out
[15:50] <Dan-K2VOL> jcoxon, cool, I honestly doubt we'll have a good flight path this weekend
[15:51] <Dan-K2VOL> don't worry too much, the weather is like 27C today
[15:51] <Dan-K2VOL> that's not the hallmark of a solid jet stream overhead
[15:51] <Dan-K2VOL> -10C is what we always had for good launches of SNOX
[15:51] <jcoxon> now that you are ready you can take your pick
[15:51] <griffonbot> Received email: Philip Heron <phil@sanslogic.co.uk> "[UKHAS] White Star Balloon's SB-1 expected to fly on the next Jet Stream"
[15:52] <Dan-K2VOL> I know your name now fsphil :-P
[15:52] <Dan-K2VOL> thank you
[15:52] <Dan-K2VOL> need to start running predictions for Cornell's flight path
[15:53] <Dan-K2VOL> I mentioned them in my tweet this morning http://twitter.com/LVL1WhiteStar see if they pipe up with an update
[15:54] <jcoxon> yeah i saw that little jab at them
[15:54] <Dan-K2VOL> heh
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[15:58] <Upu> hey jcoxon afternoon
[15:58] <Upu> just filling out a NOTAM for this concert in July
[15:58] <jcoxon> oh cool
[15:58] <Upu> see if we can get permission to launch
[15:59] <jcoxon> good luck :-)
[15:59] <Upu> lol yeah
[15:59] <jcoxon> they key is getting it early
[15:59] <Upu> well Concert is July
[15:59] <Upu> so we'll see
[15:59] <Upu> northings and eastings
[15:59] <Upu> convertor time
[16:00] <Upu> do you guys email these in or post them ?
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[16:00] <jcoxon> gosh its been years since i've done it
[16:01] <jcoxon> i can't remember
[16:01] <Upu> fsphil ?
[16:01] <Upu> lucky you not having to do it :)
[16:01] <Upu> guy owns the land and has said we can launch there any time we have permission
[16:01] <Upu> which is nice
[16:02] <jcoxon> Upu, back when i last did it i posted it
[16:02] <jcoxon> but that was 2006
[16:02] <Upu> ok
[16:02] <Upu> I'll post it
[16:04] <jcoxon> i'd do both if i were you
[16:07] <Upu> ok fair enough
[16:07] <jcoxon> just so that post doesn't get lost
[16:07] <Upu> indeed
[16:08] <fsphil> Upu, email
[16:09] <fsphil> I normally send ausops@caa.co.uk a PDF of the form + scan of the map
[16:10] <Upu> ok thanks very much
[16:10] <Upu> I'll do that
[16:13] <fsphil> be aware they they can be slow sometimes :)
[16:14] <Upu> Yes I heard that :)
[16:15] <Upu> I do have a friend who works at CAA House
[16:15] <Upu> I've yet to consider abusing that :)
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[16:17] <Upu> Support to the Head of Controlled Airspace
[16:17] <jcoxon> got a working spot today
[16:17] <Upu> thats a job title
[16:17] <jcoxon> so will take it with me travelling
[16:18] <fsphil> sweet x2
[16:18] <Upu> the satellite thingy ?
[16:18] <jcoxon> yeah
[16:18] <Upu> did you hack it or is it "vanilla" ?
[16:19] <jcoxon> its vanilla currently
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[16:19] <jcoxon> http://share.findmespot.com/shared/faces/viewspots.jsp?glId=02vhBoDslO1BaEqCUR9sUikleajn0x2u4
[16:20] <Upu> and does that cost to use ?
[16:20] <jcoxon> yeah 138 euros a year
[16:20] <Upu> suppose thats cheap considering
[16:20] <jcoxon> thats with hte tracking service as well
[16:21] <jcoxon> my plan is to play with it as a device for a while before considering hacking it
[16:28] <Dan-K2VOL> wow the spot tracker service is only 73 euros a year here
[16:28] <jcoxon> Dan-K2VOL, whats teh break down of that
[16:28] <jcoxon> i've added the basic service to the tracker service
[16:28] <jcoxon> with 200 sms as well
[16:29] <Dan-K2VOL> sms? wait did you get that new bluetooth one?
[16:29] <jcoxon> no
[16:29] <jcoxon> but you can get it to sms you the points
[16:29] <Dan-K2VOL> ah
[16:29] <jcoxon> gosh the bluetooth one is going to be awesome
[16:29] <Dan-K2VOL> not sure, I just recalled it was $99 per year here for the spot when we looked at it for balloons
[16:29] <jcoxon> but will be horrendously close
[16:29] <Dan-K2VOL> may not be the useful package
[16:30] <jcoxon> Dan-K2VOL, yeah i think its 99 euros here
[16:30] <jcoxon> its a bit of a con i suspect
[16:30] <Dan-K2VOL> i'd say so
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[16:30] <Dan-K2VOL> really too bad the new one isn't two-way
[16:30] <Dan-K2VOL> Orbcomm is activating our modem now
[16:30] <Dan-K2VOL> for flight
[16:30] <jcoxon> :-)
[16:31] <jcoxon> right have to pack
[16:31] <jcoxon> byeeeeee
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[16:39] <Dan-K2VOL> Lunar_Lander and x-f I've posted that email as a blog post on whitestarballoon.org
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[16:42] <Upu> Good luck with that Dan
[16:42] <Upu> awesome if that works
[16:50] <Dan-K2VOL> thanks upu :-)
[16:50] <Dan-K2VOL> where are you upu?
[16:50] <Dan-K2VOL> hey dougchecka
[16:53] <x-f> thanks, Dan!
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[17:22] <doughecka> hi dan
[17:22] <Dan-K2VOL> hey taf
[17:22] <Dan-K2VOL> d
[17:27] <Dan-K2VOL> dougchecka, when are you going to have the group live test of mumble?
[17:30] <Upu> hey Dan sorry was at work
[17:30] <Upu> I'm in the UK
[17:43] <Dan-K2VOL> cool Upu
[17:43] <Dan-K2VOL> am at work too still here in the eastern US
[17:46] Nick change: russss_ -> russss
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[17:51] <Dan-K2VOL> fsphil
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[18:09] Nick change: bradluyster_ -> Zuph
[18:09] <Zuph> Afternoon Ballooners
[18:10] <natrium42> balloonatics
[18:10] <Dan-K2VOL> Sounds like a 70s soft rock ballad
[18:13] <Zuph> The hackerspace is creaking like an old ship in the wind.
[18:14] <natrium42> Dan-K2VOL: k It was the heat of the moment l
[18:14] <Zuph> Dan-K2VOL: Decoded the com port assignnment
[18:16] <Dan-K2VOL> Zuph, put a ilfe jacket on SpeedBall-1 just in case
[18:16] <Dan-K2VOL> thanks for the FTDI deconvoltuing
[18:17] <Zuph> Dan-K2VOL: What is desired accuracy of HDOP and VDOP?
[18:17] <Dan-K2VOL> under 1 I think
[18:18] <Dan-K2VOL> anyone else care to comment?
[18:18] <Dan-K2VOL> natrium42? ^^
[18:18] <Zuph> Rounding to the nearest .5 saves us some telemetry bits.
[18:18] <Dan-K2VOL> oh that should be fine
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[18:19] Action: MrCraig does his best stephen fry impersonation .. Goooooooood evening good evening good evening good evening.
[18:20] <Dan-K2VOL> Brad, we should have about 3AH in each main pack right? so that's 15AH of main power onboard SpeedBall-1
[18:20] <NigeyS> evening all
[18:23] <Zuph> Dan-K2VOL: In that ballpark
[18:24] <Zuph> Dan-K2VOL: The numbers I figured were worst-case, and we had to round *up* to the nearest pack, so I bet speedball-1 has the battery load 85+ hours.
[18:28] <x-f> will Speedball-1 send an out-of-schedule SOS signal, if it suddenly starts a fast descend?
[18:29] <Dan-K2VOL> well, it's pulling close to 0.2A now on idle, that alone would leave us with only 75 hours of runtime, and that's not counting any RF transmissions
[18:30] <Dan-K2VOL> can you take a peek at the current ammeter zuph?
[18:30] <Dan-K2VOL> x-f yes
[18:30] <Dan-K2VOL> it will send HF like crazy
[18:30] <Zuph> Dan-K2VOL: The ground support board we're using right now wastes a lot of power.
[18:31] <Zuph> We're pulling closer to .14-.16 with the switching regulators.
[18:31] <Dan-K2VOL> hmm, well, we need to get a good number on idle power tonight somehow
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[18:32] <Zuph> I kept a pretty good eye on it during the cryotest while we were on ground power. .1 with the sat modem turned off, .14-.16 with sat modem idle, and .18-.19 when sending sat commands.
[18:32] <Dan-K2VOL> ok, but I want to get a real number, as there are a number of power saving steps that may need to be implemented
[18:33] <Dan-K2VOL> maybe we can break out an ethernet cable in the middle to run through an ammeter
[18:34] <Zuph> Power it with the switching regulators off the ground support board, put a real ammeter in line.
[18:36] <Zuph> Hey Dan-K2VOL , NigeyS just made me aware of an issue we will need to keep a close eye on.
[18:36] <Dan-K2VOL> oh?
[18:36] <Dan-K2VOL> unrest in the middle east?
[18:36] <Zuph> Big solar storm going on :)
[18:36] <Zuph> Could knock out or reduce GPS accuracy.
[18:36] <Dan-K2VOL> or our orbcomm reception
[18:36] <russss> it'll be over in 2-3 days I think
[18:36] <Zuph> Yeah
[18:36] <Dan-K2VOL> nice
[18:36] <NigeyS> yeah, just though it was worth mentioning, higher altitude, less protection..
[18:37] <NigeyS> thought*
[18:37] <Zuph> Yeah, none of our stuff is rad hardened :-p
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[18:37] <Zuph> Wouldn't that be just our luck!
[18:37] <russss> http://www.swpc.noaa.gov/today.html#satenv
[18:37] <imrcly> we can use more duct tape
[18:37] <NigeyS> ahh nice 1 russss
[18:37] <russss> as long as Kp is < 4 then there's nothing to worry about at all
[18:37] <russss> and there's a prediction here: http://www.swpc.noaa.gov/rt_plots/Kp.gif
[18:38] <Zuph> Heh, Space weather is predicting aurora as far south as Kentucky.
[18:38] <NigeyS> dam :o
[18:39] <NigeyS> ahh i see russss >4 is bad ..
[18:39] <russss> actually, this is the prediction: http://www.swpc.noaa.gov/forecast.html
[18:39] <Zuph> I have seen aurora here once, when I was about 7.
[18:40] <russss> this is the aurora map: http://www.swpc.noaa.gov/pmap/pmapN.html
[18:41] <NigeyS> Solar activity is expected to be
[18:41] <NigeyS> moderate with a chance for an isolated major flare for the next
[18:41] <NigeyS> three days (17-19 February).
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[18:43] <NigeyS> Zuph, i've never seen it down here :(
[18:45] <imrcly> added it to the tracker
[18:46] <Zuph> NigeyS: Well, you can buy Kinder Eggs over there, so it makes up for it.
[18:46] <russss> I think you need a Kp of about 8 or 9 to be able to see the aurora in southern England
[18:46] <imrcly> kinder eggs might kill us stupid americans
[18:47] <Zuph> Cause of Death: Tiny Dinosaur
[18:47] <fsphil> full moon here, not gonna see it here I don't think
[18:47] <russss> http://www.swpc.noaa.gov/Aurora/globeNE.html
[18:47] <russss> http://www.swpc.noaa.gov/Aurora/globeNW.html
[18:47] <fsphil> but the sky has clear patches, gonna keep an eye out
[18:48] <Zuph> I imagine rural kentucky is quite a bit darker than most of the UK, too :-p
[18:48] <russss> yeah
[18:49] <russss> and it's at a higher geomagnetic latitude.
[18:50] <NigeyS> lol zu have you seen the price on them?!
[18:50] <Zuph> NigeyS: on kinder eggs?
[18:51] <NigeyS> yeah, theyre like almost £1 each now!
[18:51] <fsphil> those free toys are expensive you know
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[18:51] <Zuph> They are $4-5 in the USA, when you can find them.
[18:51] <NigeyS> lol theyre also bloody useless! where are the really cool ones you had put together!
[18:51] <NigeyS> Zuph, i'll have to send you some!
[18:52] <Zuph> haha
[18:52] <Zuph> Feel free to request any American confections as well :-p
[18:52] <NigeyS> oo i'm gonna make a list :p
[18:52] <NigeyS> phil, full moon you say ?
[18:52] <fsphil> Friend of mine brought some chocolate home from the states -- it tasted ... odd
[18:52] <imrcly> sweeter
[18:53] <NigeyS> alot of it is down to the milk used to
[18:53] <fsphil> NigeyS, well there's certainly a lot of it :)
[18:53] <NigeyS> damn, i was going to go galaxy hunting tonight to :(
[18:53] <Zuph> Maybe some of you UK guys can provide some insight: our hackerspace was involved with a cupcake swap with the nottingham hackerspace, and they requested kool-aid packets. Is kool-aid a prize item in the UK, or is the nottingham hackerspace just crazy?
[18:53] <fsphil> could go crater hunting instead
[18:53] <fsphil> no wait, full moon is bad for that
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[18:54] <NigeyS> yush, also in my telescope, even with a filter its blindingly bright :(
[18:54] <fsphil> I don't know what kool-aid is
[18:54] <NigeyS> ya, what is this kool-aid i keep hearing?!
[18:55] <Zuph> Flavored drink mix. Kool-Aid + Water + Sugar = soft drink.
[18:55] <NigeyS> ahhhhhhhh
[18:56] <NigeyS> Zuph, the fiance said she'll get you some kindereggs tomorrow lol
[18:56] <fsphil> haha
[18:57] <NigeyS> i'm going to send them to, lets see if customs let them in lol
[18:58] <Zuph> haha :-p
[18:58] <Zuph> As long as you don't mark the package as kinder eggs :-p
[18:59] <NigeyS> lmao noo ill say its a PCB
[19:03] <NigeyS> fsphil, do you have an OIII filter ?
[19:05] <fsphil> Nah, just got a basic set of filters with my eyepiece kit
[19:08] <NigeyS> ohh, i have a spare lumicon OIII if you want it?
[19:10] <Dan-K2VOL> nice zuph, now all your PCB shipments from china will get flagged :-P
[19:10] <fsphil> oooh how well does it work NigeyS?
[19:10] <NigeyS> lol Dan
[19:10] <imrcly> just mark it as gift for student science project
[19:10] <NigeyS> fsphil, if you're not under light polluted skies, it makes a huge difference
[19:11] <Zuph> hah
[19:12] <fsphil> tempting, but the light pollution isn't getting any better here
[19:13] <NigeyS> fsphil, http://www.lumicon.com/telescope-accessories.php?iid=LF3040&cid=15&in=Filter+Oxygen+III+1.25in&hn=
[19:13] <NigeyS> there's a datasheet for it somewhere
[19:13] <fsphil> actually was talking with a few people today about heading over to scotland, to the forest park that won the dark sky award
[19:14] <NigeyS> ohh, galloway park ?
[19:14] <fsphil> that's the one
[19:15] <fsphil> it's not far from the ferry terminal
[19:15] <NigeyS> yups, would be worth the trip i think, it's that dark, you'll have a hard time seeing the constellations because there's so many other stars visible!
[19:16] <fsphil> sweeeet
[19:16] <fsphil> I can't bring the big scope unfortunately, but the little refractor is definitely coming
[19:17] <fsphil> of course it could be cloudy that week .......
[19:17] <NigeyS> shame, but even that "little guy" will see so much more, you'll be blown away, i keep promising myself to goto the southern hemisphere with my big scope, would be such an amazing experience
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[19:18] <fsphil> oh hell yea
[19:18] <fsphil> how weird would that be ... seeing constellations for the first time
[19:18] <NigeyS> yup, and the milky way like you've never seen it before!
[19:22] <fsphil> oooh next doors heating system is finally broke -- yay! (it was spewing out stinky smoke for the past few weeks)
[19:23] <NigeyS> lol what did you do?!
[19:23] <fsphil> lol! not me .. though I was tempted
[19:23] <NigeyS> haha i bet
[19:24] <fsphil> I've had to rename my dog to Sooty
[19:25] <NigeyS> oh dear, that bad eh :/
[19:26] <fsphil> yep. so hopefully they'll have to get it fixed properly now
[19:26] <fsphil> they must have been wasting a fortune in heating oil
[19:29] <NigeyS> aye i bet, thats gone up in price to!
[19:29] <NigeyS> Physicists have built the world's first device that can cancel out a laser beam - a so-called anti-laser.
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[19:38] <GroupO> hey there guys
[19:38] <NigeyS> hey GroupO
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[19:39] <GroupO> hoping i'm in the right place but wondering if anyone can provide a bit of advise about dl-fldigi
[19:40] Action: NigeyS prods fsphil
[19:40] <NigeyS> :P
[19:41] <GroupO> not in your scope then? :)
[19:42] <NigeyS> hehe nope, but stick around someone will be able to help you :D
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[19:45] <GroupO> ok, will do!
[19:52] <LazyLeopard> get your question into the back-scroll and you might find an answer pops up while you're not looking... ;)
[19:53] <GroupO> back-scroll?
[19:53] <fsphil> ooch NigeyS
[19:53] <fsphil> hi GroupO, I might be able to help
[19:53] <GroupO> brilliant
[19:54] <GroupO> well, here goes nothing...
[19:54] <LazyLeopard> Folks lurk in here, and when they look in they'll probably scroll back through what's been said in case there's anything interesting.
[19:54] <GroupO> thx LazyL
[19:55] <GroupO> well fsphil, I am trying to program an arduino board to receive and transmit GPS coords
[19:55] <GroupO> I have been on the forum and was advised to avoid RTTY code, because I am a noob and use ASCII instead
[19:56] <fsphil> Baudot?
[19:56] <GroupO> but I am using dl-fldigi to decode the transmission and wonder if it can deal with ASCII
[19:56] <SpeedEvil> yeah - no body does baudot
[19:56] <SpeedEvil> ASCII works finr
[19:56] <SpeedEvil> e
[19:56] <fsphil> ASCII is much easier yea, and well supported
[19:56] <fsphil> it's what most people here use
[19:56] <GroupO> while using ds-fldigi?
[19:56] <fsphil> yes
[19:56] <GroupO> *dl
[19:56] <fsphil> it can decode baudot, 7-bit ascii or 8-bit ascii
[19:57] <GroupO> ok
[19:57] <GroupO> well, all I need to do is learn how to code...
[19:57] <LazyLeopard> Last time someone flew a balloon using baudot it had us a mite confused for a while... ;)
[19:57] <fsphil> ah, Tim and his epic RTTY shift :)
[19:58] <GroupO> ok, I wish I knew what baudot was.... :)
[19:58] <NigeyS> more like quantum leap..lol
[19:58] <fsphil> Baudot it's a character set, it's quite similar to ASCII but older and a bit more complicated
[19:58] <GroupO> the problem is that I am a mechanical engineer by training, and have been dumped by my group with this "easy" task as they put it
[19:59] <GroupO> Ahh, ok
[20:00] <fsphil> how far have you got with the project?
[20:02] <GroupO> well, we have designed and built out structure (we are looking to add stabilising properties to the current concepts) and have purchased all the compnents required - based on a design we saw on the ukhas site
[20:02] <GroupO> im playing about with bits of code trying to get something together, buts its a bit of guesswork on my part
[20:02] <Dan-K2VOL> ah balloon projects they force all of us out of our core skillset
[20:03] <Dan-K2VOL> probably good in the long run
[20:05] <fsphil> yep, it's a good learning experience
[20:05] <imrcly> yeah and i still have no idea how to program or read schematics
[20:05] <Dan-K2VOL> lol
[20:05] <GroupO> yeh no doubts, means when I go to my next assessment centre i can add "Elctronics Buff" to my reprepertoire :)
[20:05] <fsphil> "Space flight engineer"
[20:05] <GroupO> *repertoire
[20:05] <fsphil> sure it's not quite space... but stil
[20:05] <fsphil> +l
[20:06] <GroupO> close enough
[20:06] <Dan-K2VOL> yeah I never thought I'd be studying the nuances of materials performance at -40C
[20:06] <NigeyS> "near space flight engineer" has a certain ring to it
[20:06] <imrcly> extreme operating environments engineering
[20:06] <Dan-K2VOL> I dont' like that term near space
[20:06] <Dan-K2VOL> it's the upper atmosphere
[20:08] <fsphil> very like the daytime surface conditions on mars, sans the dust
[20:09] <fsphil> I was really surprised to read about the snow in the jet stream earlier Dan-K2VOL, I'd never have expected that
[20:09] <Dan-K2VOL> me either, it's referenced in the french academic paper on the bottom of our wiki page though
[20:10] <Dan-K2VOL> it's not so much snow as the cloud has a rolling motion that dumps ice crystals on your balloon and they pile up
[20:10] <GroupO> snow? hmm I'm beginning to doubt the smarts of using balsa in our design :S
[20:10] <Dan-K2VOL> but to keep the email simple I just say snow
[20:10] <fsphil> ah, fair enough
[20:10] <fsphil> but still that's really neat
[20:10] <imrcly> you would want to seal it with paint or lacquer
[20:11] <Dan-K2VOL> yes, that dust sensor will hopefully show us if that's happening!!
[20:11] <Dan-K2VOL> GroupO any snow/ice will be very very cold
[20:13] <GroupO> ye, we have done a bit of research, looking at papers studying the properties of balsa at extreme temps,
[20:13] <GroupO> seems like it is relatively robust
[20:14] <imrcly> the water in the wood could freeeze and split the wood
[20:14] <SpeedEvil> naah
[20:15] <GroupO> could, but it wont
[20:15] <GroupO> well, i hope it wont :)
[20:16] <fsphil> man the predictions are not getting any better
[20:16] <fsphil> still a watery landing from here for the next week
[20:17] <NigeyS> just get a boat phi! :P
[20:17] <fsphil> at this rate I might lol
[20:17] <NigeyS> lol
[20:20] <fsphil> put a big hook on an RC boat, have it drag it back to shore
[20:22] <NigeyS> that could work .. in a swimming pool :p
[20:22] <Zuph> A very short summary of the flow of telemetry through the white star system: http://www.flickr.com/photos/bradluyster/5453809997/
[20:23] <x-f> a-ha
[20:25] <imrcly> where is the magical bean stalk
[20:25] <Zuph> I'm still looking for the beanstalk that lets me get some damn sleep.
[20:26] <fsphil> yikes: http://www.flickr.com/photos/bradluyster/5152270284/
[20:27] <Zuph> Yikes?
[20:27] <Dan-K2VOL> oh yeah, that's SNOX II fsphil
[20:27] <fsphil> just a very odd picture Zuph :)
[20:27] <Zuph> heh
[20:27] <Dan-K2VOL> Zuph has a jet pac
[20:28] <Zuph> No I am just very tall.
[20:33] <imrcly> hey thats where i pwned everyone at sumobots
[20:34] <Zuph> Dan-K2VOL: Ben talked to me on gchat last night, and proceeded to brutally trash talk whoever wrote the *horrible* page structure for the public tracking site. Which was me.
[20:36] <Dan-K2VOL> ah that's very nice
[20:36] <Zuph> heh
[20:36] <imrcly> that will teach you
[20:37] <Dan-K2VOL> gtg
[20:37] <Zuph> I know. I have learned the sins of <table> and shall repent.
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[20:40] Nick change: Laurenceb__ -> Laurenceb_
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[21:08] <imrcly> this camera is such a bother the LED is supplied constant power
[21:15] <GroupO> guys can you point me in the direction of a good resource? i want to take strings of data parsed from a GPS and broadcast them over a radio transmitter in ASCII form. Any ideas whtere I can get some tutorials covering that type of issue?
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[21:36] <fsphil> there are guides on connecting a microcontroller to a radio (the NTX2) on the ukhas website
[21:36] <Upu> http://alienproject.wordpress.com/tag/radiometrix-ntx2/
[21:37] <Upu> http://alienproject.files.wordpress.com/2009/06/radiometrix-circuit-diagram.png
[21:37] <Upu> afk
[21:40] <Zuph> It is colder in the hackerspace than outside. 21c today.
[21:41] <fsphil> that's quite cosy
[21:42] <imrcly> should open the door some
[21:44] <Zuph> There's an idea. I'm afraid the wind will whip our stuff around a little, though
[21:46] <Zuph> Heh, 16c inside
[21:47] <fsphil> that's quite a difference
[21:47] <juxta> morning all
[21:47] <imrcly> the side alley door should help some
[21:49] <fsphil> morning juxta
[21:49] <Zuph> actually, the wind isn't getting in the garage door too bad. We'll see how it goes. Get the stench of nerd and balloon out a little.
[21:49] <GroupO> thx, Upu. Il have another look fsphil, but I couldn't find anything about programming for the NTX2 last time I looked.
[21:49] <juxta> it's raining here :D
[21:50] <Upu> Rob Harrison had some code up somewhere
[21:50] <Upu> it wasn't hugely complex
[21:58] <DanielRichman> rtty code for the arduino is commonly availble but you may or may not have fun making the timings work
[21:58] <DanielRichman> s/commonly/widely/
[22:03] <GroupO> i have had quite a bit of feedback telling me RTTY is a bit outdated and overly complez
[22:03] <GroupO> *complex
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[22:03] <GroupO> my main issue is that I have no experience and only a few weeks to muster something up :S
[22:04] <DanielRichman> rtty is awesome and is used because it's very easy to use
[22:05] <DanielRichman> and won't break
[22:05] <DanielRichman> and is very appropriate to the type of transmitter used.
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[22:07] <Darkside> GroupO: RTTY is *simple* and *reliable*
[22:07] <GroupO> ok , so it would be worth going down that line then?
[22:08] <Darkside> depends on your application though i guess
[22:08] <GroupO> I was going to progress that way, I have just been given conflicting opinions
[22:08] <Darkside> what are you doing?
[22:08] <GroupO> using GPS to locate balloon trajectory and transmit data back using NTX2
[22:09] <Darkside> oh, then yes, use RTTY :)
[22:09] <Darkside> what radio receiver do you have?
[22:09] <GroupO> I am not sure... it's one thats available in my uni
[22:09] <Darkside> find out
[22:09] <Darkside> it's going to be quite important
[22:10] <GroupO> aparenlty, according to the student running the comms centre, it will pick up data using that cofig
[22:10] <Darkside> if you're going to use the NTX2, you need a receiver that can receive sideband transmissions on 434.650MHz
[22:10] <GroupO> so it wont be a problem, he recommended it
[22:10] <Darkside> USB or LSB, doesn't matter
[22:10] <Darkside> yes, but me might have thought the NTX2 transmits FM
[22:10] <Darkside> which it won't be doing
[22:11] <GroupO> I think he is quite clued up on that - he has tested it out already
[22:11] <Darkside> >_>
[22:11] <Darkside> be *extremely* sure on that one
[22:11] <GroupO> he isnt part of my group tho, and doesnt have the time to help me code
[22:11] <GroupO> lol, ok
[22:11] <Darkside> seriously
[22:11] <Darkside> anyway, the coding part is easy
[22:11] <Darkside> what microcontroller are you using?
[22:11] <GroupO> arduino 2560
[22:11] <Darkside> woo
[22:11] <Darkside> easy
[22:12] <GroupO> yeh?
[22:12] <Darkside> hells yeah
[22:12] <Darkside> so, do you understand how the NTX2 is driven, with the 2-pin arrangement?
[22:12] <GroupO> i dont even know what that means :S
[22:13] <GroupO> i assume u mean tx and rx?
[22:13] <Darkside> not quite
[22:13] <Darkside> the NTX2 has a data input pin, TXD
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[22:13] <Darkside> this pin is wired into the NTX2 transmitters VCO (voltage controlled oscillator)
[22:14] <Elwell> (the datasheet is worth a read btw)
[22:14] <Darkside> if you feed TTL (i.e. 0v / 3v) data on this pin, the frequency shift will be very large, and cause the transmissions to have a wide bandwidth
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[22:14] <Darkside> but, if you make a voltage divider across 2 pins on the microcontroller, and feed the output voltage from that voltage divider into the TXD pin, you can have a much finer frequency shift
[22:15] <Darkside> in our case, we go for a 425Hz frequency shift, or thereabouts
[22:15] <GroupO> ok, is that a better thing? I'm sorry if that is a moronic statement, but i have no understaing of this, its all new to me
[22:15] <GroupO> *understanding
[22:15] <Darkside> yes, a smaller bandwidth is better
[22:16] <Darkside> and in this application, a low data rate is also good - we use data rates between 50 and 300 baud
[22:16] <Darkside> this may sound like a very slow data rate, but when you think about what kind of data you're transmitting, it is more than sufficient
[22:16] <GroupO> but does the GPS not output something like 4800?
[22:16] <Darkside> you wouldn't be feeding in raw data from the GPS
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[22:17] <GroupO> I have a vague understanding of that, I think
[22:17] <Darkside> you would use an arduino library to read data from the GPS, parse it, and then send out points of data every few seconds
[22:17] <Darkside> there is a library called TinyGPS that does this
[22:17] <GroupO> i have come across that
[22:17] <GroupO> its actually open on my desktop just now
[22:17] <GroupO> just trying to make sense of it
[22:19] <Darkside> heh
[22:19] <GroupO> indeed
[22:19] <Darkside> what GPS are you using?
[22:19] <GroupO> if you don't laugh you cry, right?
[22:19] <Darkside> some of them will have an altitude cap
[22:20] <GroupO> its a Falcom FSA-03
[22:20] <Darkside> oh, goody :)
[22:20] <Darkside> tried and tested :)
[22:20] <GroupO> indeed, it was based off of a design on the UKHAS website
[22:20] <Darkside> yup
[22:20] <Darkside> and theres already a codebase for using it
[22:20] <GroupO> we are just piggy-backing
[22:20] <GroupO> yeh?
[22:20] <Darkside> and since it's a uBlox chipset, you can run it in polled mode too, which is nice
[22:20] <GroupO> polled mode?
[22:21] <Darkside> uBlox chipsets allow you to turn off the 'standard' NMEA sentences, which are sent out from the GPS at regular intervals, in favour of a 'polled' mode, where you request data
[22:21] <NigeyS> ping Zuph
[22:21] <Darkside> so you send a small line requesting the data from the GPS, and it responds immediately
[22:21] <NigeyS> morning Darkside :-)
[22:22] <Darkside> this means you don't need to be continuously watching the GPS's serial line for data
[22:22] <Darkside> NigeyS: morning
[22:22] <GroupO> kl
[22:22] <Zuph> pong NigeyS
[22:22] <Darkside> I need to do a writeup on all this, explaining why we do what we do
[22:22] <Darkside> and why what we do is good :P
[22:22] <NigeyS> Zuph, there are 4 kindereggs in my fridge for you!
[22:22] <Darkside> it would be a very large writeup, i'm sure >_>
[22:23] <Zuph> NigeyS: Wow! Awesome! :)
[22:23] <NigeyS> hehe the fiance just got back from the store with them !
[22:24] <Zuph> Let me know what sort of American goodies you'd like in return!
[22:24] <GroupO> yeh, i think the main thing is my lack of background understanding
[22:24] <NigeyS> oh i will :D !
[22:24] <Darkside> GroupO: well you've come to the right place
[22:24] <Darkside> people here have been doing this kind of thing for years
[22:25] <doughecka> To all people interested in following WhiteStar and/or participating in Mission Control: http://goo.gl/h5Qne
[22:25] <Darkside> we have tried and tested telemetry systems that rarely fail, and provide ridiculously long range
[22:25] <NigeyS> thanks doughecka :)
[22:25] <GroupO> yeh, i had hoped so. I'm beginning to light at the end of the tunnel of despair :)
[22:25] <Darkside> the project horus telemetry transmitters (designed & built by juxta) have been heard up to 400km away from the balloon itself
[22:26] <NigeyS> GroupO, the fact you have the fsa03 is very helpful, lots of code out there to give you an idea of what's what and how it works.
[22:26] <GroupO> well, that settles my concerns for range
[22:27] <GroupO> yeh, I have been looking at stuff, but sometimes it helps to chat to people who have experience. I kinda get bogged down in the technical terms thrown about by data out there
[22:27] <NigeyS> oh aye, been there done that
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[22:28] <Darkside> i need to write a long-range telemetry guide or something..
[22:29] <GroupO> yes... and you can get payment in your conscious being uplifted for helping poor souls like me... :)
[22:29] <Darkside> hahahaa
[22:29] <Darkside> i don't want to make it *too* easy
[22:29] <GroupO> hahaha
[22:29] <GroupO> I wouldn't complain if it was!
[22:31] <Darkside> ok, time to get ready to head into uni
[22:31] <Darkside> need to meet with my supervisor today
[22:33] <GroupO> kl, well it has been a pleasure
[22:34] <GroupO> hope to get some of ur expertise coming my way again, soon!
[22:34] <Darkside> no probs
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[22:43] <GroupO> well thanks for the help guys, but I'm off to earn a few well-deserved ZZZ
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[23:17] <fsphil> hmm.. aurora map still seems very calm
[23:17] <fsphil> http://www.swpc.noaa.gov/pmap/pmapN.html
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[23:23] <NigeyS> give it a couple more days
[23:24] <NigeyS> wb Dan-K2VOL
[23:24] <Dan-K2VOL> hey NIgeyS
[23:24] <NigeyS> dan ..
[23:24] <Dan-K2VOL> suffering from lack of sleep here
[23:24] <NigeyS> 10 of 666 messages
[23:24] <Dan-K2VOL> just arrived for the evening work session at the hackerspace
[23:24] <NigeyS> please post a msg to the whitestar list, thats a nastily unlucky number..lol
[23:24] <Dan-K2VOL> eh nigeyS?
[23:25] <Dan-K2VOL> haha absolutely not, superstition needs to be stamped out
[23:25] <NigeyS> lol :P
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[00:00] --- Fri Feb 18 2011