highaltitude.log.20121224

[00:00] <Navrac_Work> so not the worlds biggest improvement, but I guess it would save 8 or 10mA
[00:02] <Navrac_Work> hmm 6mA sounds more realistic sadly given the overhead of the rest of the circuitry on the RFM
[00:02] <Navrac_Work> not really worth the effort
[00:03] <fsphil> the lack of AFC is the biggest flaw for me
[00:04] <Navrac_Work> yep, although it can handle a drift of 100hz without an issue
[00:04] <fsphil> with rtty and the auto-tuning, I can usually just leave it after initial tuning
[00:04] <Navrac_Work> likewise
[00:05] <Navrac_Work> its faster though
[00:07] <Navrac_Work> what does the cwi threshold and the filtering do in fldigi?
[00:08] <fsphil> not sure on either. on mine the dsp filter is enabled
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[00:09] <fsphil> the CWI could be something to filter out an overlapping carrier?
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[00:15] <Navrac_Work> i might just ditch domino - the extra 5 or 6db is not worth the horrible noise it makes
[00:15] <Navrac_Work> its driving me up the wall, much prefer RTTY
[00:16] <fsphil> the slower domino modes sound nice
[00:16] <fsphil> well any mode past a certain rate just sounds like noise
[00:16] <Navrac_Work> well this is -16 as you know - not sure how fast it is compared to 50 baud rtty
[00:17] <Navrac_Work> I guess I could recode for a lower rate.
[00:19] <fsphil> I wonder if the optional FEC would help
[00:20] <Navrac_Work> hmm might do, a lot of work for little gain though - just looked dom16 is about the same as rtty 100
[00:20] <fsphil> that seems about right
[00:21] <Navrac_Work> right off to bed, I'll test this in the freezer tomorrow and see how it stands up
[00:22] <fsphil> good plan
[00:22] <fsphil> g'nite!
[00:22] <Navrac_Work> goodnight
[00:22] <fsphil> needa do the same
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[00:46] <Lunar_Lander> MERRY CHRISTMAS
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[01:06] <russss> SpaceX just uploaded the video of the latest Grasshopper flight: http://www.youtube.com/watch?v=B4PEXLODw9c
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[01:08] <SpeedEvil> wacky.
[01:09] <SpeedEvil> so awesome it crashed my nexus 7
[01:09] <arko> AWESOME
[01:17] <SpeedEvil> are the feet 'smoking' ?
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[01:17] <SpeedEvil> I wonder if gas rams activated by turbopump exhaust of something
[01:18] <SpeedEvil> or maybe it's simply a flow artefact
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[01:48] <arko> is it sad/desparate that im looking at noaa radar data hoping to see a blip of the hab i launched 2 years ago?
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[03:35] Nick change: heathkid|2 -> heathkid
[03:38] <arko> do the hourly predictor and normal predictor usually have different results?
[03:38] <Dan-K2VOL> there's a known bug that they're working on
[03:38] <arko> in which one?
[03:39] <Dan-K2VOL> hourly is correct when they disagree, according to danielrichman
[03:39] <Dan-K2VOL> by the way you don't need a reflector
[03:39] <arko> really?
[03:39] <Dan-K2VOL> nope
[03:40] <arko> i thought it was an faa rule
[03:40] <Dan-K2VOL> it's a rule that you're exempted from by another rule in the same section
[03:40] <arko> haha
[03:40] <arko> which rule is that?
[03:40] <Dan-K2VOL> it's hard to read, even for me after years of doing so
[03:40] <Dan-K2VOL> just a sec
[03:41] <arko> its cool, i dont want to bug ya
[03:41] <Dan-K2VOL> oh this is what I do
[03:41] <Dan-K2VOL> I'm escaping a family party to do balloon stuff :-P
[03:41] <arko> :D
[03:41] <arko> awkward family is shared across the world
[03:42] <Dan-K2VOL> http://www.gpo.gov/fdsys/search/pagedetails.action?packageId=CFR-2012-title14-vol2&granuleId=CFR-2012-title14-vol2-part101
[03:44] <Dan-K2VOL> if you read § 101.1, it says in there that as long as you follow everything in 101.1, and 101.7, you don't have to do the things in the rest of the section 101
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[03:48] <Dan-K2VOL> however, as a good citizen of the sky, you should do your best to be as safe as possible for others, here's some tips I've put together: https://docs.google.com/document/pub?id=13cPaSLHZfb2f05ylChIV_4xQHhNS3z_51l7SibAZsLk
[03:48] <arko> oh thanks!
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[05:14] Nick change: Arrrbition -> Arbition
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[05:26] <heathkid> great info
[05:28] <heathkid> what exactly is a "flight termination system"?
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[07:15] <x-f> heathkid, a curdown device, that releases the balloon from the payload, or bursts the balloon, or inverses it to let the gas out - something that makes the payload descend from altitude
[07:22] <arko> woot
[07:22] <arko> got three hourly predictors running
[07:22] <arko> the alternative launch locations
[07:22] <arko> :D
[07:22] <Randomskk> nice
[07:22] <arko> shit is getting srs
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[07:43] <Upu> I got 2 Arko :)
[07:44] <arko> nice :D
[07:44] <arko> if i ever meet the programmers, i will buy them lots of drinks
[07:45] <arko> i will be in the UK sometime in august or september
[07:45] <Upu> Lets us know
[07:45] <arko> :D
[07:45] <Upu> we'll schedule the conference round you
[07:45] <arko> hahaha
[07:45] <Upu> serious we did it with Dan Bowen last year
[07:45] <arko> i hoepe to make it
[07:45] <Upu> this year
[07:46] <arko> i should have a hab launched and recovered, and i will be doing a talk at a hacker conference here in los angeles
[07:46] <arko> if it's good enough, i'll submit to ukhas
[07:52] <arko> i gave a talk on how i screwed up my last one and people loved it
[07:52] <arko> two people went ahead and did there own after that
[07:52] <arko> one succeed, that was cool
[07:52] <arko> figured a successful one might help
[07:52] <arko> having one*
[07:53] <arko> i wish we shot a documentary/how to on this
[07:53] <arko> how-to
[07:53] <arko> you can learn a lot from a video
[07:53] <arko> even more from text, but anyway
[07:59] <Upu> picture worth a 1000 words etc
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[08:13] <arko> :)
[08:13] <arko> i cant wait
[08:13] <arko> i just want a cool wallpaper
[08:13] <arko> that we took
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[08:29] <arko> hmm
[08:29] <arko> i should probably look before asking but i dont see a way to make the hourly report export to kml
[08:32] <arko> wow
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[09:37] <eroomde> morning arko
[09:37] <eroomde> and al
[09:37] <number10> morning
[09:39] <eroomde> morning number10
[09:47] <daveake> morning both, and indeed all
[09:47] <DanielRichman> arko: found and fixed a predictor disagreement bug yesterday
[09:48] <number10> thats good DanielRichman
[09:48] <DanielRichman> arko: details here. https://github.com/jonsowman/cusf-standalone-predictor/pull/97 Updating should be straightforward
[09:50] <SamSilver> http://www.gizmag.com/orion-spacecraft-parachute-test/25557/?utm_source=Gizmag+Subscribers&utm_campaign=1350a80bd4-UA-2235360-4&utm_medium=email
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[09:53] <fsphil> morning all
[09:54] <number10> morning fsphil
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[09:58] <griffonbot> Received email: Trevor Cousins "[UKHAS] habhun/predict results dependent on lat lon deltas?"
[10:13] <griffonbot> Received email: Daniel Richman "Re: [UKHAS] habhun/predict results dependent on lat lon deltas?"
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[10:38] <nick_> eroomde: are you getting a boat for Christmas?
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[11:02] <gonzo___> the WX is really mank here today. So no BONZO launch today, me thinks.
[11:04] <Upu> lets just have Picogeddon on the 26th
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[11:09] <joph> hobbyking ist mean, they have great planes...
[11:10] <joph> http://www.hobbyking.com/hobbyking/store/__27132__Skywalker_X_8_FPV_UAV_Flying_Wing_2120mm.html <<< i want it :D
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[11:18] <eroomde> nick_: is this with reference to ox flooding?
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[11:19] <nick_> specifically the raging torrents I saw by your house this morning
[11:20] <eroomde> i see thwy've put defenses back up
[11:20] <eroomde> via twitter
[11:20] <eroomde> i am in sussex
[11:20] <eroomde> at home
[11:20] <eroomde> whivh is up a hill in the downs
[11:20] <eroomde> so fairly safe
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[11:25] <nick_> I hope your stuff is upstairs
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[11:59] <Lunar_Lander> hello
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[12:03] <navrac> Wind looks a bit strong to launch here on the 26th - but at least theres no rain
[12:06] <gonzo___> if I can get a small bottle of gas, I may tey a boxing day launch too
[12:06] <gonzo___> though a bit of a busy day for us
[12:08] <Lunar_Lander> merry christmas!
[12:10] <fsphil> not yet Lunar_Lander :)
[12:10] <Lunar_Lander> xD yea
[12:10] <Lunar_Lander> you celebrate on the 25th, right?
[12:10] <gonzo___> give it another 12hrs]
[12:12] <fsphil> saturday predictions are heading further north, http://habhub.org//predict/#!/uuid=63d119ad1f8ea9ab5f62e080c9c85f534cde9ce9
[12:15] <fsphil> myspacebarhasbroke!
[12:16] <Lunar_Lander> and a comment from me
[12:16] <Lunar_Lander> Sarah Millican is good!
[12:18] <number10> is a bit strong navrac - dont think wednesday is much better
[12:20] <costyn> fsphil: so you not only have a dodgy mouse, but also dodgy keyboard?
[12:21] <fsphil> sadlyyes
[12:22] <fsphil> well,at,least,not,on,the,same,computer
[12:22] <costyn> this is amusing
[12:22] <fsphil> no_it_isn't_:p
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[12:22] <costyn> actually it is
[12:22] <costyn> did you ask santa for a new keyboard/mouse?
[12:23] <Lunar_Lander> xD
[12:24] <Lunar_Lander> what do you think of Sarah Millican?
[12:24] <fsphil> I should have
[12:24] <fsphil> plugged in a usb keyboard
[12:24] <fsphil> this is my thinkpad laptop, gonna need to get that fixed
[12:24] <fsphil> feels like there's something stuck behind it
[12:24] <costyn> mmm yea if it's a laptop, not so great
[12:24] <costyn> fsphil: breadcrumbs?
[12:25] <Lunar_Lander> yea
[12:25] <Lunar_Lander> lol
[12:25] <fsphil> possibly, although I wouldn't admit it
[12:25] <Lunar_Lander> what thinkpad type do you have?
[12:25] <fsphil> T60
[12:25] <Lunar_Lander> do still one of IBM?
[12:25] <fsphil> it's branded both, IBM and Lenovo
[12:25] <Lunar_Lander> ah
[12:25] <Lunar_Lander> hm
[12:26] <Lunar_Lander> maybe you can even try to fix it yourself, lenovo support should have the hardware maintenance manual as a PDF
[12:26] <fsphil> I'll try and get the key removed, clean out behind it
[12:26] <fsphil> not sure how to do that without breaking it
[12:26] <Lunar_Lander> that's what I meant
[12:26] <fsphil> not sure if they just pull out
[12:26] <Lunar_Lander> that the manual might explain that
[12:27] <fsphil>
[12:27] <Lunar_Lander> IIRC from my old laptop, you have to pull at one side and then the lock releases
[12:30] <number10> Lunar_Lander: you still have time to pop down to the uni today and get radio :)
[12:30] <SamSilver> I suspect some bacon stuck behing space bar
[12:30] <Lunar_Lander> number10, yes but I will tell you the problem
[12:31] <Lunar_Lander> I won't get a key until next year and I know for sure that today, being christmas day, no one will be at any building
[12:31] <Lunar_Lander> my first chance will be the 27h
[12:31] <Lunar_Lander> *27th
[12:31] <number10> is it christmas day on the 24th in germany?
[12:31] <Lunar_Lander> yes
[12:32] <fsphil> yay space
[12:32] <gonzo___> Then merry xmas to you then
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[12:32] <Lunar_Lander> thanks :)
[12:32] <fsphil> wasn't able to get the key removed, but just trying to lift it seems to have dislodged whatever it was
[12:32] <Lunar_Lander> yea
[12:32] <Lunar_Lander> fsphil, you mean like
[12:32] <number10> well happy christmas Lunar_Lander - what did you get as present - any chance it was a radio?
[12:32] <Lunar_Lander> SPAAAAAAAAAAAAAAAACE
[12:32] <Lunar_Lander> :)
[12:32] <gonzo___> prob an SMD cap
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[12:32] <fsphil> SPAAAAAAAAAAAACEBAR
[12:32] <fsphil> haha
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[12:33] <Lunar_Lander> number10, ah presents will come around 7 pm
[12:33] <Lunar_Lander> :P
[12:33] <Lunar_Lander> xD
[12:33] <Lunar_Lander> hi mclane & mclane_
[12:33] <number10> well lets hope you got a radio for tracking at home :D
[12:33] <Lunar_Lander> xD
[12:33] <gonzo___> that muts be torture for children!
[12:33] <gonzo___> must
[12:33] <Lunar_Lander> yeah
[12:33] <Lunar_Lander> I know it was one when I was little
[12:33] <fsphil> what do you guys do on the 25th?
[12:33] <Lunar_Lander> like waiting all day
[12:33] <Lunar_Lander> and maybe play computer or so
[12:34] <Lunar_Lander> and then dinner
[12:34] <Lunar_Lander> and the presents after that
[12:34] <Lunar_Lander> fsphil, good question
[12:34] <number10> take asprin fsphil after drinking too much schnapps
[12:34] <Lunar_Lander> xD
[12:34] <fsphil> haha
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[12:35] <number10> I hear that the germans moved christmas day to the 24th just to get there before the brits
[12:35] <number10> ;)
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[12:36] <costyn> fsphil: I'm going to my mother-in-laws place with the wife and kids and we're having dinner there... not very exciting :)
[12:36] <fsphil> nice
[12:36] <fsphil> I always head down to my sisters place for dinner on the 25th
[12:37] <fsphil> turkey, mash and gravy. mmm
[12:37] <costyn> heh
[12:37] <costyn> it gets exponentially harder with small kids that do not like a lot of food
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[12:38] <costyn> trying to figure out a meal
[12:38] <fsphil> I'm an adult and I don't like a lot of food :)
[12:40] <Lunar_Lander> watching the Sarah Millican show
[12:40] <Lunar_Lander> XD
[12:40] <Lunar_Lander> btw her surname is almost like the phyisicist who found the elementary charge
[12:40] <Lunar_Lander> quiz: what was his name?
[12:42] <fsphil> I wasn't expecting a kind of spanish inquisition
[12:43] <Lunar_Lander> why?
[12:43] <fsphil> (monty python reference)
[12:43] <Lunar_Lander> xD
[12:44] <costyn> fsphil: NOBODY expects the Spanish Inquisition!
[12:44] <costyn> our primary weapon is fear
[12:44] <costyn> i'll stop now
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[12:45] <fsphil> might be wise
[12:45] <Lunar_Lander> hello mclane
[12:45] <Lunar_Lander> does anybody know the quiz question?
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[12:47] <costyn> Lunar_Lander: Millikan
[12:47] <Lunar_Lander> exactly!
[12:48] <Lunar_Lander> *buzzer sounds*
[12:48] <Lunar_Lander> *audience applauds*
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[13:08] <Lunar_Lander> costyn, how do you spend the day?
[13:16] <costyn> Lunar_Lander: 13:36 < costyn> fsphil: I'm going to my mother-in-laws place with the wife and kids and we're having dinner there... not very exciting :)
[13:16] <costyn> (copy/paste)
[13:16] <Lunar_Lander> oh sorry
[13:17] <costyn> :)
[13:31] <fsphil> some classic christmas music, http://www.youtube.com/watch?v=a-nm84RU5i0
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[13:59] <jcoxon> afternoon all
[14:00] <jcoxon> seems like christmas has got in the way oh hab!
[14:00] <Lunar_Lander> hello
[14:00] <fsphil> indeed it's rather quiet on the HAB front :)
[14:00] <Lunar_Lander> https://www.youtube.com/watch?v=XZCWQ6LBbww
[14:00] <jcoxon> its cause of these cold fronts fsphil
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[14:01] <fsphil> cold fronts, and in my case the cold :)
[14:01] <jcoxon> eeek
[14:01] <jcoxon> everyone seems to be ill
[14:01] <fsphil> yea I was lucky to avoid it for as long as I did
[14:01] <fsphil> so I'm not complaining. much.
[14:01] <jcoxon> haha
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[14:01] <fsphil> still hoping to launch on new years
[14:01] <Lunar_Lander> yea
[14:02] <Upu> Just getting over it
[14:02] <jcoxon> fsphil, yes please
[14:02] <Lunar_Lander> hi anthony
[14:02] <Upu> Hello Kevin
[14:02] <Lunar_Lander> and
[14:02] <Lunar_Lander> everything's OK, Merry Christmas Happy Holidays!
[14:05] <number10> looks like a bit windy for pico jcoxon
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[14:05] <jcoxon> number10, yeah it does
[14:06] <jcoxon> similar to last time
[14:06] <jcoxon> and that didn't go great
[14:06] <Lunar_Lander> ohh
[14:06] <Lunar_Lander> anthony, how are you today?
[14:06] <number10> possibly best not to do it - even though everyone will be fed up with christmas and want something else to do
[14:09] <Lunar_Lander> number10, do you want some music? :)
[14:09] <number10> yes Lunar_Lander that would be nice
[14:09] <Lunar_Lander> https://www.youtube.com/watch?v=XZCWQ6LBbww
[14:10] <jcoxon> number10, when were you planning to launch?
[14:11] <number10> well I was going to look at the air traffic and launch from either the field at the back of garden or up at the old airfield
[14:12] <jcoxon> were you planning to launch today or 26?
[14:12] <number10> 26
[14:12] <jcoxon> oh right
[14:12] <jcoxon> well still got time for the weather to improve...
[14:13] <number10> forcast at the moment is little less than to doday wind wise
[14:15] <Lunar_Lander> number10, how is the song :)?
[14:15] <jcoxon> if not i'm free on the weekend
[14:16] <number10> ok - If I postpone I'll bear that in mind jcoxon
[14:16] <jcoxon> well actually just sunday
[14:16] <number10> Lunar_Lander: I was hoping it would be along the lines of classic mozart bach or beethoven
[14:17] <number10> I'll keep an eye on the weather jcoxon
[14:18] <Lunar_Lander> oh
[14:19] <number10> this is better Lunar_Lander http://www.youtube.com/watch?v=4j9toMA17QY
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[14:21] <Lunar_Lander> thanks :)
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[15:03] <Geoff-G8DHE> Was that you testing this morning Dave?
[15:05] <daveake> yup
[15:06] <daveake> I've added a few sensors to the Pi so the telemetry has a lot more in it now
[15:07] <Geoff-G8DHE> Sounds interesting
[15:08] <Lunar_Lander> which ones?
[15:08] <daveake> BMP085 temp/pressure on the i2c port
[15:08] <Lunar_Lander> cool
[15:08] <daveake> DS18B20 for ext temp
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[15:09] <daveake> Also monitoring the board temp via the GPU
[15:09] <daveake> MCP3008 for A/D - just battery voltage so far
[15:09] <daveake> And the UBlox is now connected via i2c to free up the serial port
[15:10] <daveake> Also, I now have separate programs for rtty, GPS and sensors, so there are no gaps between sentences
[15:11] <daveake> There are some other tricks for the next flight but you'll have to wait and see :D
[15:12] <Geoff-G8DHE> Will try to watch in that case!
[15:12] <daveake> It's going to be fun :)
[15:12] <Geoff-G8DHE> Any idea when the next flight might be ?
[15:12] <daveake> End of Jan probably
[15:13] <Geoff-G8DHE> OK will keep an eye open for it.
[15:14] <daveake> It'll be announced on the mailing list
[15:14] <Lunar_Lander> sounds good daveake
[15:18] <Lunar_Lander> daveake, different programs for the different things sounds interesting
[15:18] <daveake> It means the rtty can run at the same time as GPS and the sensors
[15:18] <Lunar_Lander> yes
[15:18] <Lunar_Lander> that would be my dream too
[15:19] <daveake> Well on an Arduino you can do it with timer interrupts
[15:19] <daveake> That's what I do
[15:19] <Lunar_Lander> yes
[15:19] <daveake> On the Pi use separate threads in a program, or separate programs.
[15:19] <Lunar_Lander> yeah
[15:19] <Lunar_Lander> as on Pi you have linux right?
[15:19] <daveake> yes
[15:20] <daveake> So you have shared memory and semaphores and all that good stuff
[15:20] <Lunar_Lander> yea, and then you can have several programs/processes/apps (Windows 8 speak)
[15:20] <Lunar_Lander> yea
[15:20] <daveake> yes
[15:20] <Lunar_Lander> sounds good
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[15:22] <daveake> On previous flights I've had 2 programs - one for the tracker and the other for the photography
[15:22] <Lunar_Lander> yes
[15:22] <daveake> This time there'll be, erm ... at least 6 :)
[15:22] <Lunar_Lander> cool!
[15:22] <Lunar_Lander> what's the CPU frequency again?
[15:23] <Lunar_Lander> 750 MHz?
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[15:24] <daveake> think so#
[15:26] <Lunar_Lander> yea
[15:26] <Lunar_Lander> that is cool
[15:26] <Lunar_Lander> our one PC from 2000 has a Pentium III 650 MHz
[15:26] <Lunar_Lander> and now think about that
[15:27] <Lunar_Lander> the Pi is much smaller and needs no fan and stuff like that
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[15:28] <Lunar_Lander> COOL
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[15:54] <Lunar_Lander> I got a question
[15:54] <Lunar_Lander> " Bean hides inside the postbox, to avoid getting told off by the postman for the theft of the stamp. He gets locked inside for an unknown amount of time (the original commercial break occurred here), though as the postbox had a "1" showing, it was probably all night."
[15:54] <Lunar_Lander> that says wikipedia on mr bean
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[15:55] <Lunar_Lander> does the "1" on a mailbox mean that the postman empties it only once a day?
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[16:06] <chrisg7ogx> is there anything to track today please?
[16:07] <daveake> no
[16:07] <daveake> If you're not already on the mailing list, join it. Almost all flights get announced there
[16:08] <daveake> Second place to look is the caption box on spaxenear.us
[16:09] <Lunar_Lander> spacenear.us it is
[16:09] <daveake> i was close
[16:09] <chrisg7ogx> ok thanks all
[16:10] <chrisstubbs> Hey Lunar_Lander
[16:11] <Lunar_Lander> hi chrisstubbs
[16:11] <chrisstubbs> hows it going?
[16:14] <chrisstubbs> Any updates on your tracker Lunar_Lander
[16:20] <Lunar_Lander> ah
[16:20] <Lunar_Lander> sorry
[16:21] <Lunar_Lander> yea the tracker as such is completed, only have to complete the cutdown next week
[16:21] <daveake> When are you hoping to launch?
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[16:24] <chrisstubbs> Ah nice, got it on a board yet or still on breadboard for prototyping?
[16:25] <eroomde> http://bit.ly/yXHzdh
[16:25] <chrisstubbs> Havent touched mine, been slightly sidetracked with work but its all working as far as i remember
[16:35] <number10> chrisstubbs: there may be something up on the 26th - but probably will be a little too far south for you
[16:35] <number10> oops chrisg7ogx ^^^
[16:37] <Lunar_Lander> daveake, in January
[16:37] <daveake> excellent
[16:38] <number10> if its not too windy http://ready.arl.noaa.gov/hysplitout/18233_trj001.gif
[16:39] <number10> would be in range of x-f if it gets past the trees and coast
[16:42] <daveake> yeah trees are an obstacle :p
[16:50] <Lunar_Lander> yea
[17:02] <number10> payload finished - straws weigh >1g :(
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[17:13] <Lunar_Lander> presents deployed on the christmas tree
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[17:30] <griffonbot> Received email: Trevor Cousins "Re: [UKHAS] habhun/predict results dependent on lat lon deltas?"
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[17:48] <x-f> number10, that's a nice path; unfortunately that would be in workdays, which means limited availability
[17:49] <number10> what is the time there now?
[17:49] <x-f> we're GMT+2
[17:50] <number10> maybe it would get there for the evening :) but I think wind is too high anyway
[17:50] <x-f> i would alert local radio freaks if picos really come this way, of course
[17:50] <number10> thanks
[17:51] <x-f> the least i can do
[17:51] <x-f> ok, i'm out, have a nice Christmas eve, everyone!
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[18:04] <griffonbot> Received email: Daniel Richman "Re: [UKHAS] habhun/predict results dependent on lat lon deltas?"
[18:12] <Lunar_Lander> hello x-f
[18:13] <Lunar_Lander> and merry christmas
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[19:40] <number10> Habby Christmas to all - http://i.imgur.com/wuy3j.jpg ... I wonder if Mrs 10 will notice the new decoration
[19:42] <daveake> Does it flash?
[19:43] <number10> ahh daveake that would add a gram
[19:44] <number10> I should have done a mock up tracker instead of a working one to add flashing lights
[19:46] <daveake> indeed :)
[19:47] <daveake> We haven't put a tree up this year, because we know what the kitten would use it for
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[20:31] <jcoxon> evening all
[20:32] <eroomde> evening jcoxon
[20:42] <jcoxon> hey eroomde
[20:43] <eroomde> how are things jcoxon?
[20:46] <jcoxon> good thanks
[20:47] <jcoxon> back in suffolk
[20:47] <eroomde> likewise
[20:47] <jcoxon> finished nights this morning, bit of a dodgy drive home was very tired
[20:47] <eroomde> bu suffolk i mean sussex
[20:47] <jcoxon> indeed
[20:47] <Lunar_Lander> christmas was here! XD
[20:47] <eroomde> jcoxon: at least you'll presumably crash out this evening
[20:48] <jcoxon> yup
[20:51] <eroomde> i still need to wrap a couple of presents
[20:52] <jcoxon> just 1 left for me
[20:52] <Lunar_Lander> music https://www.youtube.com/watch?v=XZCWQ6LBbww
[20:53] <eroomde> aubergine http://upload.wikimedia.org/wikipedia/commons/f/fb/Aubergine.jpg
[20:53] <Lunar_Lander> XD
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[21:04] <Lunar_Lander> I got the german version of "Wonders of the Solar System"
[21:04] <Lunar_Lander> where they cut out all of Brian Cox as far as I know
[21:05] <eroomde> his hair ist too inefficient
[21:06] <Lunar_Lander> oh
[21:06] <Upu> lol
[21:07] <arko> Morning
[21:08] <eroomde> morning arko
[21:08] <arko> How often do folks use handwarmers in their payloads?
[21:08] <arko> Sup eroomde
[21:08] <eroomde> NEVER
[21:08] <eroomde> it's a sign of noobness
[21:08] <Lunar_Lander> hello arko
[21:08] <eroomde> so there you go
[21:08] <eroomde> that's put you right off hey
[21:08] <arko> Haha
[21:08] <arko> Sup Lunar
[21:08] <eroomde> but srsly, never
[21:09] <eroomde> cameras dissipate a fair bit of heat
[21:09] <eroomde> but a well insulated tracker keeps itself warm
[21:09] <arko> Does it get things too hot?
[21:09] <arko> Ok good
[21:09] <Upu> waste of weight
[21:09] <Upu> just insulate well
[21:09] <arko> Because after doing the circuit analysis this sucker will operate at -40c
[21:10] <eroomde> it'll be fine then
[21:10] <arko> I figure good insualtion is enough
[21:10] <Upu> as long as its not exposed to the outside it will be fine
[21:10] <eroomde> arko: you might enjoy last night's episode of james may's man lab
[21:10] <Upu> just a few wraps of bubble wrap does it
[21:10] <eroomde> toy stories not man lab, sorry
[21:10] <eroomde> http://www.youtube.com/watch?feature=player_embedded&v=-k41z_ujop4#!
[21:10] <Upu> Toy Stories I think
[21:10] <Upu> that will be pulled in about 10 mins
[21:11] <arko> Upu yeah we are doing styrofoams
[21:11] <arko> Eroomde nice
[21:11] <eroomde> they build an autonomous glider and try and get it to cross the channel
[21:11] <Lunar_Lander> Upu, and do you know who was on after James May?
[21:11] <arko> I have added this to my watch list
[21:12] <Upu> I'd watch it before they pull it for copyright
[21:12] <Lunar_Lander> yea
[21:12] <arko> Watching the horus talk on my new flat screen
[21:12] <Upu> Lunar rowan atkinson in his least funny role ?
[21:12] <arko> At the moment
[21:12] <Lunar_Lander> (what was his least funny role?)
[21:12] <arko> Any horus people here?
[21:12] <Lunar_Lander> no, it was Sarah Millican
[21:12] <Lunar_Lander> xD
[21:12] <Upu> Mr Bean
[21:13] Action: Upu points at Darkside
[21:13] <Upu> who is Sarah Millican ?
[21:13] <Lunar_Lander> why was that the least funny role?
[21:13] <Upu> because its not funny
[21:13] <Lunar_Lander> ah she is like a comedian, but she did to do the double slit experiment on "A night with the stars"
[21:13] <arko> Thats right, darkside i remember watching on of their launches live
[21:13] <Upu> Have they done live launches ?
[21:14] <Upu> you mean video streaming ?
[21:14] <arko> No no
[21:14] <Lunar_Lander> horus 12 was on ustream I think and I watched it here
[21:14] <arko> It was on spacenearua
[21:14] <Upu> oh ok
[21:14] <arko> Us
[21:14] <Upu> rgr
[21:14] <Upu> next few days should be busy
[21:14] <Upu> Picos and possibly a properly 1600g float from Ireland
[21:14] <Upu> put alot of batteries on it fsphil
[21:15] <Lunar_Lander> but here people laugh really much about Bean
[21:15] <Upu> and in the US Lunar
[21:15] <eroomde> Mr Bean is one of those exports than you know will be enjoyed by Germans and the Japanese
[21:15] <eroomde> like aging UK rock bands
[21:16] <arko> Lol
[21:16] <Lunar_Lander> XD
[21:16] <eroomde> Lunar_Lander: you might enjoy 'This is Spinal Tap'
[21:16] <eroomde> it's one of my favourite films
[21:17] <Lunar_Lander> what's it about?
[21:17] <Upu> Black Adder is way better
[21:17] <Upu> especially the last two series
[21:17] <Lunar_Lander> yea that is awesome
[21:17] <Lunar_Lander> well I like the second series with Elizabeth I.
[21:17] <Lunar_Lander> with that one woman pretending to be a man or so
[21:17] <Lunar_Lander> in one episode
[21:18] <eroomde> i think 'that women pretending to be a man or so'
[21:19] <eroomde> is if there is some spectrum of possibilities
[21:19] <fsphil> 4x AA's should be enough Upu
[21:19] <Lunar_Lander> ah well, let me remember
[21:19] <Lunar_Lander> there was a woman pretending to be a man so she could be a servant of Blackadder
[21:19] <eroomde> bet then as the guardian would correct me, gender is a spectrum
[21:19] <Lunar_Lander> but she was obviously a woman from the looks but no one noticed
[21:20] <daveake> bob
[21:20] <Upu> What about Harry Enfield Lunar_Lander ?
[21:20] <Lunar_Lander> sorry don't know him
[21:20] <fsphil> *bob*
[21:20] <Upu> ah you should check him out on YouTube
[21:20] <Upu> http://www.youtube.com/watch?v=LS37SNYjg8w
[21:21] <eroomde> there's another good harry enfield sketch isn't there Upu
[21:21] <eroomde> i can't remember what it is off the top of my head
[21:22] <Upu> Yes he has a teenager called Kevin thats also funny
[21:22] <daveake> http://www.youtube.com/watch?v=SZ5x1Jy2o-A
[21:24] <Lunar_Lander> LOL the woman speaks and the one guy gets huge eyes!
[21:25] <Lunar_Lander> you know what is sad?
[21:25] <Lunar_Lander> they really told girls back in these days they can't do science and stuff because their brains are not built for it
[21:27] <Lunar_Lander> for example Richard Feynman's sister got told that by her mother
[21:27] <Lunar_Lander> now she is an astronomer
[21:29] <Lunar_Lander> thanks Upu and daveake
[21:30] <daveake> np :)
[21:33] <griffonbot> Received email: Trevor Cousins "Re: [UKHAS] habhun/predict results dependent on lat lon deltas?"
[21:35] <Lunar_Lander> xD graham norton and the red chair
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[21:50] <griffonbot> Received email: Daniel Richman "Re: [UKHAS] habhun/predict results dependent on lat lon deltas?"
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[22:00] <gonzo___> any more plans for pico launches on boxing day?
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[22:05] <jcoxon> gonzo__ i think groundwinds are going to be an issue
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[22:08] <gonzo___> oh yes, it has changed since I last checked the forecasts
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[22:08] <gonzo___> nasty
[22:12] <fsphil> oh eck, windy here too this weekend
[22:14] <gonzo___> managed to get a small bottle of gas, that should just... do a 2 balloon pico
[22:15] <gonzo___> so will take the gear with me over the holls and wait for a nice day
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[22:43] <navrac> Unlikely to launch on boxing day at the moment - local forecast 18mph winds with 31mph gusts :-(
[22:44] <jcoxon> not pico friendly
[22:44] <Lunar_Lander> :(
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[22:56] <Lunar_Lander> balloon! http://s.gullipics.com/image/f/v/k/5yvldf-ki1ktn-p8a2/IMG6354.jpeg
[22:58] <Upu> wtf is that Lunar ?
[22:59] <fsphil> didn't you post that pic before?
[23:00] <Lunar_Lander> xD
[23:00] <Lunar_Lander> Upu, that is a US Army balloon
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[23:00] <Upu> that looks dangerous
[23:00] <Lunar_Lander> why?
[23:01] <Upu> whats it made of ?
[23:01] <Upu> doesn't look like any latex balloon I've used
[23:02] <daveake> or want to use
[23:02] <Upu> and that
[23:02] <Lunar_Lander> it should be latex as well
[23:02] <Lunar_Lander> see for example http://www.mikedeep.com/Project-Soar/Eclipse-Soar/23253257_GPwkrs?_escaped_fragment_=i%3D1875507997%26k%3DDQH63ZP#!i=1875507997&k=DQH63ZP
[23:02] <Upu> the filler bit looks like latex
[23:02] <Upu> but its brown Lunar
[23:02] <Lunar_Lander> yea
[23:03] <Upu> I wouldn't use that tbh
[23:03] <Lunar_Lander> why exactly?
[23:04] <Upu> anyone here used a military balloon and know if they are meant to look like that ?
[23:04] <Upu> it doens't look right lunar, it looks "furry"
[23:04] <daveake> because they're so old they were old before you started HABbing Lunar
[23:04] <Upu> I'll tell you why
[23:04] <Upu> because we want your first launch to succeed
[23:04] <fsphil> looks like it might leak
[23:04] <Lunar_Lander> oh
[23:04] <Upu> truly we are having a party on here when you launch
[23:05] <daveake> yup
[23:05] <Upu> and I don't think that's going to help
[23:05] <Upu> it looks bad
[23:05] <Upu> if its latex it looks like its degraded
[23:05] <Lunar_Lander> that doesn't look good
[23:05] <daveake> I've read one report from someone who used one of those old balloons. It didn't get high
[23:05] <Upu> I might be wrong, I've not used this type of balloon
[23:05] <Lunar_Lander> can we still use it to try out how to use a filler and stuff like that?
[23:05] <Upu> but it sure as hell looks nothing like the ones Dave and I use
[23:06] <daveake> IIRC they fill from the top
[23:06] <daveake> So no, won't help much
[23:06] <Lunar_Lander> yea I read that too
[23:06] <Lunar_Lander> hm
[23:06] <Lunar_Lander> I still got a KCI-1500 though that I bought at Steve's
[23:06] <Lunar_Lander> :)
[23:06] <fsphil> be careful the material isn't dangerous
[23:06] <Upu> use that
[23:07] <fsphil> the military have a different idea of safety :)
[23:07] <Lunar_Lander> yea
[23:07] <Upu> sure its latex ?
[23:07] <Lunar_Lander> I think in antarctica, they like put these balloons in Diesel for storage
[23:07] <Lunar_Lander> I think so
[23:07] <number10> that looks like one that may have been in a pair of slippers for a while
[23:07] <Lunar_Lander> let me check
[23:07] <Upu> stored in diesel ?
[23:07] <Upu> lol
[23:07] <number10> :D
[23:08] <Lunar_Lander> can't find it on ebay
[23:09] <Lunar_Lander> yea, they put them in diesel to keep them like handable in the cold
[23:09] <Lunar_Lander> but later they like cooked them before inflation
[23:09] <Lunar_Lander> and that gave higher altitudes
[23:10] <eroomde> midnight mass - 10pm - 11pm
[23:10] <eroomde> my kind of midnight mass
[23:10] <eroomde> assuming you have to go to please family
[23:11] <daveake> accelerated
[23:11] <Upu> I decided not to go this year
[23:11] <Upu> wife has gone
[23:11] <Upu> I have a 18 yr old Bowmore instead
[23:11] <Upu> screw candles
[23:12] <Lunar_Lander> XD
[23:12] <eroomde> unto us a headache is born
[23:12] <eroomde> alleleuia alleleuia
[23:12] <Upu> I already have one
[23:13] <eroomde> bells tingle in the background (our church has gone all high-church since i last went)
[23:13] <Upu> Got this silly cold
[23:13] <Lunar_Lander> I know an astronomer who made daleks and TARDISs out of gingerbread
[23:13] <eroomde> random calls and responses to completely incoherent melodies
[23:13] <Lunar_Lander> and then put these onto his christmas tree
[23:13] <eroomde> i'd keep a hold of that friend Lunar_Lander
[23:13] <Lunar_Lander> :)
[23:14] <Lunar_Lander> http://scienceblogs.de/astrodicticum-simplex/2012/12/24/weihnachtsdekoration-mal-anders/
[23:16] <Upu> So you cooking tomorrow eroomde ?
[23:16] <eroomde> nope
[23:16] <eroomde> not a suasage
[23:16] <eroomde> though i did wrap 96 chipolatas in bacon today
[23:17] <eroomde> that's my contribution to the christmas effort
[23:17] <Upu> we are having gammon so thought that might be a pig overload
[23:18] <eroomde> i am stuffed
[23:18] <eroomde> saving myself for tomorrow
[23:18] <eroomde> and the onslaught
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[23:20] <Upu> :)
[23:20] <Upu> yeah I always feel crap about 7pm on XMAS day
[23:20] <Upu> I did consider not stuffing my face
[23:20] <Upu> but then realised I quite like it
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[23:22] <eroomde> Upu: just put the turkey in
[23:22] <Upu> you did ?
[23:22] <daveake> I've just put the marinades on the pork and chicken that we're BBQing tomorrow
[23:23] <eroomde> i did
[23:23] <eroomde> mum couldn't it is 24lb
[23:23] <eroomde> insert comma
[23:23] <daveake> big bird
[23:23] <Upu> its either flipping huge or its stuffed with an ostrich
[23:23] <eroomde> it is both
[23:23] <Upu> :)
[23:23] <Upu> we are only feeding 5 tomorrow
[23:23] <Upu> Sister is working (Nurse)
[23:24] <Upu> Parents subscribe to a different view point
[23:24] <Lunar_Lander> XD the turkey on Mr bean's head
[23:24] Action: Upu pats Lunar
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[23:25] <eroomde> 5 would be nice
[23:25] <eroomde> we're about 22
[23:25] <Upu> wow
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[23:25] <eroomde> it's like being hit by a train
[23:25] <eroomde> but with the food and drink too
[23:25] <Upu> is your family Catholic or something ?
[23:25] <eroomde> by 8pm you're flattened and covered in tyre marks
[23:25] <eroomde> yeah
[23:25] <eroomde> french, y'see
[23:26] <Upu> lol
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[23:27] <Upu> http://hackaday.com/2012/12/24/update-roll-your-own-gps-can-now-track-twice-as-many-satellites/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+hackaday%2FLgoM+%28Hack+a+Day%29&utm_content=Google+Feedfetcher
[23:29] <eroomde> well i can track 16 so nernernernerner
[23:29] <eroomde> but i'm not trying to fit in onto an fpga
[23:30] <eroomde> which is definitely a tricky thing
[23:30] <Upu> hows that coming along ?
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[23:32] <eroomde> doing the hardware layout for the fpga + gps + ins onto a compact flash card
[23:32] <eroomde> a little(ish) pcb to log everything raw
[23:33] <Upu> what are you using to receive the actual raw signals ?
[23:33] <eroomde> a max2769
[23:34] <eroomde> it's a front end chip
[23:34] <eroomde> it downmixes the 1.5ghz to 4mhz
[23:34] <eroomde> and then samples that signal at 16mhz
[23:34] <eroomde> and spits it out of a 1 bit dac
[23:34] <eroomde> adc, not dac, sorry
[23:34] <eroomde> there are other options but that's the basic default
[23:35] <Upu> sounds interesting, so doing this to get away from COCOM limits ?
[23:36] <zyp> eroomde, you decided to go with CF?
[23:36] <zyp> do they have more predictable response times than SD?
[23:36] <eroomde> yeah
[23:36] <eroomde> it's just ATA
[23:37] <eroomde> basically just addressable memory, much less state
[23:37] <zyp> yes, but ATA doesn't guarantee predictable response?
[23:37] <eroomde> also, the interface is open
[23:37] <eroomde> there are still some waits but i'm doing a circukar ram buffer no
[23:37] <eroomde> so not so worried
[23:37] <eroomde> wanted removable sotrage in the end to save having to put the pc interface on the board and in the fpga
[23:38] <zyp> considering that you get CF to SD-adapters, the protocol must allow the same waits to happen for that to work
[23:38] <eroomde> i can just dd it straight off the card if it's on a cf card
[23:38] <zyp> true
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[23:44] <eroomde> Upu: https://dl-web.dropbox.com/get/Public/gpssamplerboard.JPG?w=5d8eb75b
[23:44] <eroomde> not sure if that works for anyone other than me
[23:44] <eroomde> but there's the chipette
[23:45] <jcoxon> anyone expecting a hab chritmas present?
[23:46] <eroomde> not i
[23:46] <Upu> actually yes
[23:46] <Upu> 403 errror eroomde
[23:46] <eroomde> but i am expecting a camera to document the next few years of awesome
[23:46] <eroomde> Upu: http://dl.dropbox.com/u/58776840/gpssamplerboard.JPG
[23:46] <Upu> I think I might be getting a Saleae logic analyser
[23:47] <eroomde> nice
[23:47] <eroomde> useful bit of kit that
[23:47] <Upu> if my subtle hints have been noted
[23:47] <Upu> yep
[23:47] <eroomde> infact, it's what i used to get the bitstream onto the pc from the board in the picture
[23:48] <Upu> image is loading but very slow
[23:48] <eroomde> dropbox is being a poobum atm
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[23:53] <kiwi_85364> evening guys
[23:53] <Upu> evening
[23:53] <Lunar_Lander> hello
[23:53] <kiwi_85364> im trying to follow the tutorial here: http://ukhas.org.uk/guides:linkingarduinotontx2
[23:53] <Upu> ok
[23:53] <Upu> whats the issue ?
[23:54] <kiwi_85364> i have no electrical experiance, so its all new. but using that setup is causing a *lot* of heat for me
[23:54] <Upu> I assume you're here as you have an issue with it and not to say "awesome tutorial give the person who wrote it a medal" :)
[23:54] <kiwi_85364> i cant figure out why :/ one of the 4.7k resisters
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[23:54] <fsphil> heat in what?
[23:55] <fsphil> heat suggests a short circuit
[23:55] <kiwi_85364> Upu: well it is pretty clear and well written, so if i can sort my heat issue out a medal may be in order ;)
[23:55] <Upu> heat as in "ouch thats hot" ?
[23:55] <fsphil> or a component in backwards
[23:55] <kiwi_85364> its one of the 4.7k resistors thats burning up
[23:55] <Upu> ok turn it off
[23:55] <Upu> remove the power
[23:55] <kiwi_85364> decolouring if left too long.. too hot too touch etc
[23:55] <Upu> you have something wired wrong
[23:56] <fsphil> or a faulty 4.7k resistor
[23:56] <Upu> what are you powering it off ?
[23:56] <kiwi_85364> i thought so, but it does match the image on that page as far as i can tell
[23:56] <kiwi_85364> Upu: usb powered arduino
[23:56] <fsphil> it might not be 4.7k
[23:56] <Upu> thats wierd
[23:56] <Upu> should be enough current there to do that
[23:56] <Upu> know what power rating the resistors are ?
[23:57] <daveake-tab> You can't get a 4k7 hot without lots of volts
[23:57] <fsphil> a 4.7k resistor shouldn't generate that much heat even if you put 5v throuhg it
[23:57] <fsphil> you might have a 4.7 ohm resistor
[23:57] <kiwi_85364> unsure how or where to check the power rating?
[23:57] <fsphil> or 47 ohm
[23:57] <Upu> take a clear picture of the circuit and post it to imgur.com so we can see it
[23:57] <kiwi_85364> ah
[23:57] <fsphil> ideally a multi-meter to measure it
[23:57] <Upu> or read the colour bands out here
[23:57] <kiwi_85364> ah crap yes youre right.. im an idiot for missing that ohm symbol
[23:57] <kiwi_85364> >.<
[23:58] <arko> hmm
[23:58] <Upu> should be yellow violet orange ?
[23:59] <daveake-tab> Red
[23:59] <Upu> sorry 4k7 not 47k
[23:59] <Upu> late
[23:59] <kiwi_85364> yea ive got a 4.7ohm resistor in place
[23:59] <Lunar_Lander> or yellow violet black brown, right?
[23:59] <Lunar_Lander> on a five band one
[23:59] <daveake-tab> Yes
[23:59] <daveake-tab> Hate those
[23:59] <Upu> that could be your issue try a larger one kiwi_85364
[23:59] <daveake-tab> Didn't exist when I learnt :-)
[00:00] --- Tue Dec 25 2012