highaltitude.log.20110228

[00:00] <fsphil> http://habhub.org/predict/#!/uuid=29119d17aeb115f3bdfd0b171450cb3ecc8b304a
[00:00] <fsphil> still a bit close to the coast
[00:01] <fsphil> 300 baud works well even with the little ntx2 -- with a decent receiver I bet it could do 1200 without any issues
[00:01] <Randomskk> eh, I think 1200 at distance with little signal strength starts becoming hard
[00:01] <Randomskk> but you could probably get 500 or more and use many many streams
[00:02] <Randomskk> then again this is basically the same as mfsk like dominoex
[00:02] <fsphil> only with mfsk it's only TX'ing one tone at a time
[00:02] <Randomskk> just they are mostly all designed for use by hams who want very very good receivability on HF going halfway around the world and only have some text to transmit
[00:02] <Randomskk> I guess that too
[00:03] <fsphil> multiple transmitters would overcome the power problem quite nicely :)
[00:03] <Randomskk> haha
[00:04] <fsphil> though the frequency drift might not be the same with each
[00:04] <Randomskk> I wonder where the law draws the line there
[00:04] <fsphil> could end up colliding
[00:04] <Randomskk> if I just have like five NTX2s sitting on my PCB
[00:04] <Randomskk> with connected inputs
[00:04] <Randomskk> feels somehow wrong
[00:04] <fsphil> that would be a really cool experiment -- have one doing regular telemetry, the rest doing high speed data
[00:04] <Randomskk> yea, but where does it become legal/illegal?
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[00:05] <Randomskk> the NTX2 isn't really ideal for doing really clever things, either
[00:05] <Randomskk> and I guess designing very high speed clever radios is still kind of really tricky
[00:05] <fsphil> four instances of dl-fldigi with a nice wide-band radio
[00:06] <Randomskk> would be cool
[00:07] <Darkside> i should be able to do QPSK on my hf transmitter, once i've modified it
[00:07] <fsphil> the funcube dongle does about 80khz, and the ft817 can be modified for wider bandwidth too
[00:07] <Darkside> or potentially higher order PSK
[00:07] <Randomskk> Darkside: that could be cool
[00:07] <fsphil> psk would be neat
[00:07] <Randomskk> though it's HF right?
[00:07] <Randomskk> so you've still got pretty limited bandwidth total
[00:07] <Randomskk> if you wanted to stream video or something
[00:08] <Darkside> Randomskk: yeah
[00:08] <Randomskk> otoh you can fly ham radio payloads
[00:08] <Darkside> if i wanted to do streaming video i'd do ATV
[00:08] <fsphil> 1200 baud is possible on HF
[00:08] <Darkside> we're planning on an ATV launch sometime in the future
[00:08] <Randomskk> fsphil: yea, but you can't just transmit over all the channels
[00:08] <Randomskk> Darkside: that'd be super cool.
[00:08] <Randomskk> fsphil: I wonder if we could do UWB
[00:08] <fsphil> true, but it would be contained within a voice channel
[00:09] <fsphil> use the entire band? :)
[00:09] <Randomskk> the 434 ISM band is channelised
[00:09] <Randomskk> but I wonder if you could transmit in each channel at once
[00:10] <Randomskk> UWB would be cool
[00:10] <Randomskk> you transmit over a ridiculous frequency spectrum
[00:10] <Randomskk> at very low power-per-hertz
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[00:12] <russss> there are a lot of weird license-free UWB frequency bands/
[00:12] <Randomskk> yea
[00:13] <Randomskk> FCC allow 3.1 to 10.6 GHz inclusive
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[00:16] <Randomskk> though I think mostly UWB is exciting for very short range rather than very long range
[00:16] <Randomskk> the whole inverse square thing with the power
[00:18] <russss> yeah
[00:18] <W0OTM> Can I get some feedback? http://www.youtube.com/watch?v=i1Th5666c9s
[00:18] <russss> no substitute for some wattage
[00:18] <W0OTM> Opinions on my VHF antennas
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[00:20] <Hibby> do it yourself?
[00:21] <W0OTM> yeqh
[00:21] Action: Hibby has a really nice yagi he machined for vhf/uhf
[00:22] <Hibby> also have some nice yagis at t'work... give me a min I'll pull up a picture
[00:23] <Hibby> https://dl.dropbox.com/u/6715082/DSC01238.JPG
[00:24] <Hibby> also, re: wider band, we're currently modifying our IC-910 for 38.4kbaud and looking at options for a 1MBit link too.
[00:25] <Randomskk> that'd be kinda neat
[00:25] <Randomskk> live video would be great
[00:25] <Randomskk> live 1080p even better though I begin to doubt the feasibility
[00:25] <russss> I am pretty keen on live video stuff
[00:25] <Hibby> lol. 1MBit is for UKube ~ we're waiting on IARU confirmation.
[00:25] <russss> I have zero time to work on it though.
[00:26] <juxta> W0OTM, what is inside the corflute?
[00:26] <Hibby> It kills me a bit inside that ham radio + balloons in the UK aren't allowed :(
[00:26] <juxta> speaker wire rather than coax?
[00:26] <Randomskk> russss: yes, that's basically my problem
[00:27] <russss> Randomskk: at some point it will probably demand improved payload stabilisation
[00:27] <W0OTM> juxta: yes
[00:27] <Randomskk> I can spend time working to get money for projects, but then don't have time for projects, or I spend time learning about radio but then don't have time or money to make it, or I can spend time on projects but then don't have the money or knowledge to make more advanced projects
[00:27] <Randomskk> but like, there we go, compromises all the way
[00:27] <Randomskk> russss: indeed
[00:27] <juxta> W0OTM, acting as a balanced transmission line?
[00:27] <Randomskk> not least because 1080p from a payload that's spinning like crazy would make everyone dizzy :P
[00:28] <W0OTM> juxta: 100ohm
[00:28] <W0OTM> juxta: not perfect what will do
[00:28] <juxta> hehe - why did you go that route rather than coax?
[00:29] <W0OTM> weight
[00:29] <russss> yeah payload stabilisation would be cool for other reasons
[00:29] <W0OTM> i don't even like the 12" of coax I do have
[00:29] <Dan-K2VOL> Hey jcoxon
[00:29] <Dan-K2VOL> Aw not here
[00:30] <juxta> oh righto
[00:30] <Dan-K2VOL> eh hibby you guys have nearly as good with the spacenear.us on 434
[00:31] <Hibby> Dan-K2VOL: true.
[00:39] <Lunar_Lander> Dan-K2VOL
[00:39] <Lunar_Lander> is the sim running?
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[00:49] <MrCraig> ni ni
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[01:31] <Lunar_Lander> good night
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[06:52] <jcoxon> morning
[06:52] <jcoxon> has the sim finished?
[06:53] <jcoxon> Zuph, ping
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[07:48] <fsphil> Tim's got another nuts descent video: http://www.youtube.com/watch?v=7eDPAvJZm2M
[08:23] <earthshine> morning
[08:26] <earthshine> i wish we could just do launches from our own back gardens in the UK
[08:34] <fsphil> depends where the back garden is I suppose
[08:36] <fsphil> there are too many buildings about here to try it
[08:38] <earthshine> I am too close to quite a few airports to get permission from my garden
[08:39] <fsphil> ah, yea that would be an issue
[08:39] <fsphil> have you tried?
[08:40] <earthshine> no
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[08:42] <Darkside> have any of you guys had any experience with balloon icing?
[08:44] <earthshine> i doubt that would be an issue as the balloon is expanding all the time
[08:44] <SpeedEvil> Don't use butter icing, it will degrade the baloon.
[08:45] <earthshine> tasty though
[08:45] <fsphil> even if the balloon does ice up, it's very difficult to tell
[08:46] <Darkside> heh
[08:46] <Darkside> well our launch on the weekend burst 10km lower than expected
[08:46] <fsphil> it could just have been a bad balloon?
[08:46] <Darkside> maybe
[08:46] <Darkside> it did fly through cloud
[08:46] <fsphil> ah
[08:47] <SpeedEvil> If there was precipitation in there, it may have been ice particles, which weaened
[08:48] <Darkside> ok
[08:48] <fsphil> though you'd think the ice would fall off as the balloon expand?
[08:48] <fsphil> +ed
[08:49] <Darkside> dunno
[08:49] <Darkside> wasnt there a paper on this that someone linked?
[08:51] <fsphil> mmm.. yea the speedball guys had one...
[08:51] <SpeedEvil> I was meaning sharp bits of ice pelting the balloon, weakening
[08:52] <Darkside> yeah
[08:52] <Darkside> that could happen too
[08:52] <Darkside> but yeah, it burst far too early
[08:52] <Darkside> we were expecting 20km, we got 30km
[08:57] <fsphil> http://wiki.whitestarballoon.com/doku.php?id=science:icing:research
[08:57] <fsphil> "The remarkably short lifetime of many pressurized balloon flights at 300 mb had been tentatively explained by overloading with ice"
[08:59] <SpeedEvil> 'constant level balloons'
[08:59] <SpeedEvil> = constant radius
[09:10] <Darkside> hmm
[09:10] <Darkside> ok
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[10:18] <fsphil> still on the dry side of the coast: http://habhub.org/predict/#!/uuid=d5ab49e834c0dbf1257548db36a6c87ba33554b6
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[11:09] <GW8RAK> Morning fsphil. Are you going for a weekend launch?
[11:09] <SpeedEvil> Oooh - my stm32 discovery arrived.
[11:09] <fsphil> that's the plan at the moment
[11:09] <GW8RAK> Note to self - must complete shack tidy up. Full of crap at present.
[11:10] <fsphil> hehe, I need to setup a shack so I can move all the crap there :)
[11:11] <fsphil> the prediction is likely to change as it gets closer to saturday, hopefully it'll stay within dry land
[11:11] <GW8RAK> Shacks are like black holes. Once crap goes in there, it doesn't come out.
[11:11] <GW8RAK> Dining rooms were invented for "temporary" storage of crap.
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[11:12] <fsphil> haha
[11:12] <fsphil> my computer desk in my case
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[11:13] <GW8RAK> It is haha until SWMBO decides to invite friends for dinner. Major tidy up needed.
[11:15] <fsphil> I'll have the antenna well tested this time, so you shouldn't have a problem receiving it
[11:15] <GW8RAK> I must also finish my homebrewed yagi for this launch. I bought all the bits some time ago, but there were put to one side.
[11:17] <GW8RAK> Hope to get the flight computer designed this week and start final construction.
[11:17] <GW8RAK> So far, I've just been building on a bit of veroboard, but it looks a mess, so I'll start from scratch.
[11:19] <fsphil> veroboard works well though, really handy
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[11:19] <GW8RAK> Very easy to use for small circuits. So I'm going to try a sandwich design. Picaxe on one, tx on another, sensors on another and GPS on another. Shields for Picaxes
[11:20] <GW8RAK> Whenever I've tried to put a complicated circuit on veroboard, I just get it wrong.
[11:26] <GW8RAK> Was looking at etching a pcb, but again the laying out causes problems. I think I'm more inclined to turn the soldering iron on rather than plan what I want to do.
[11:27] <GW8RAK> But the GPS and TX boards will be etched boards and the TX one with a groundplane underneath.
[11:27] <fsphil> yea, I'd started a schematic in eagle cad and everything -- but started getting stuck with silly things not working
[11:28] <GW8RAK> I've built boards before with the design done ugly fashion and then just draw with an etch resist pen all the interconnectinos. It works and is quick, but looks shit.
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[11:40] <jgrahamc> I think I ought to get involved with QRP. Did my radio test over the weekend. Amazing how far 10mw reaches http://blog.jgc.org/2011/02/gaga-1-flight-computer-testing.html
[11:41] <fsphil> it's amazing isn't it?
[11:41] <fsphil> I had the ntx2 on breadboard, just a jumper wire as an antenna and I was able to receive it from the mountain about 10km away
[11:42] <jgrahamc> It is. My parents had my transmitter inside a bag, inside their car and I could hear the RTTY with a whip antenna.
[11:42] <jgrahamc> I assume that was with a Yagi.
[11:42] <fsphil> nope, just the whip that comes with the 817
[11:43] <jgrahamc> Amazing.
[11:43] <jgrahamc> For my test (about 5.5km) with the Yagi I was 59 pointing in any direction.
[11:44] <GW8RAK> Is that a commercial Yagi? Or could you have been picking up reflections?
[11:44] <jgrahamc> Probably should have tried the whip, but there was a metal fence in the way and I was freezing my hands off! Once I heard it loud and clear with the Yagi I was ready to go home.
[11:44] <fsphil> the first time I tried receiving a Cambridge launch, one of Robs, I was able to hear it with the yagi still sitting on the ground
[11:44] <jgrahamc> It's a commercial Yagi for 70cm
[11:45] <GW8RAK> I would have expected more directionality than that.
[11:45] <fsphil> sometimes I think the NTX2 is putting out more power than they advertise :)
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[11:47] <jgrahamc> Actually, there was a bit of directionality. The signal faded a bit but it was very clear. Given how cold it was I wasn't looking at the meter than often.
[11:47] <jgrahamc> The main thing is I now know that my homebrew antenna is working and can cross that off the list of things to worry about.
[11:48] <fsphil> yea, that's pretty important
[11:49] <jgrahamc> And also I let the flight computer run for 8 hours on batteries so know that the current drain isn't bad
[11:50] <GW8RAK> I'd be suspicious if the signal didn't vary, but some fading is good.
[11:51] <jgrahamc> With the whip it varied a lot as they drove away and eventually was just audible with a lot of background noise. Plugged in the Yagi and it was very clear.
[11:51] <jgrahamc> To be honest I was so happy I could hear the thing from 5.5km away inside their car that I was ready to go home and get out of the cold.
[11:51] <GW8RAK> Sounds like it is working okay.
[11:51] <GW8RAK> UHF escapes from cars quite well.
[11:53] <jgrahamc> Good to know.
[11:56] <fsphil> decoded from the youtube video: $$GAGA~2X.q,rrX :)
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[11:56] <Lunar_Lander> hello
[11:58] <Lunar_Lander> is the FRG-9600 a good receiver?
[11:58] <jgrahamc> fsphil: that's awesome. I wondered about doing that but given all the other noise.
[11:59] <jgrahamc> The actually string would have been something like $$GAG
[11:59] <fsphil> rtty is surprisingly resilient.
[11:59] <jgrahamc> The $$GAGA is right it would have been followed by the temperature in C dd.d (so the 2 and . are correct), the following , is correct and then it would have read Error: 0.
[11:59] <GW8RAK> Hello Lunar_Lander. For reviews have a look at http://www.eham.net/reviews/detail/1196
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[12:00] <fsphil> the video ended at that point
[12:00] <Lunar_Lander> yeah I just looked
[12:01] <Lunar_Lander> most of the people there don't like the 9000
[12:01] <Lunar_Lander> sorry, 9600
[12:01] <GW8RAK> It sounds like some people want a scanner, buy the 9600 and find it doesn't do what they wanted. That is their fault, not the radios.
[12:01] <Lunar_Lander> yeah
[12:01] <fsphil> eham is full of that
[12:02] <Lunar_Lander> on the feature list is "SSB up to 460 MHz"
[12:02] <fsphil> and amazon
[12:02] <jgrahamc> Yeah, the eHam reviews are kind of annoying. Half the time they are talking about a different radio.
[12:02] <GW8RAK> I didn't understand that bit either. I'm sure SSB goes all the way up. No reason for it not to. Of course, I could be wrong.
[12:04] <Lunar_Lander> ah
[12:04] <fsphil> it seems to be in the manual: http://gary.burkett.org/Manual.txt
[12:04] <GW8RAK> I've just found that link!
[12:04] <fsphil> "Frequency Range 60 - 905 MHZ (up to 460 MHZ for SSB)"
[12:05] <fsphil> my google-foo is strong today :)
[12:06] <GW8RAK> It seems strange, but if it doesn't do SSB above 460MHz, then I would reject it.
[12:07] <Lunar_Lander> ok
[12:07] <fsphil> could have been a cost-cutting measure
[12:08] <GW8RAK> It probably means that it is a receiver for upto 460MHz and above that, it uses some form of down converter or non linear frequency doubling circuitry.
[12:08] <Lunar_Lander> that can well be
[12:10] <fsphil> if it's going really cheap then it might be worth it
[12:12] <Lunar_Lander> what about this one: http://www.cbshop.com/Yupiteru_MVT_7300
[12:20] <fsphil> Icom IC-R10?
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[12:22] <Lunar_Lander> 468 euro
[12:23] <Lunar_Lander> that is quite much
[12:23] <Lunar_Lander> hey
[12:23] <Lunar_Lander> now I have an idea
[12:24] <Lunar_Lander> maybe I can borrow the receiver from someone
[12:24] <jgrahamc> Lunar_Lander: I simply bought an old Yaesu FT-790R on eBay.
[12:24] <Lunar_Lander> yeah I would also do that but as I see it, there is none for sale atm
[12:25] <jgrahamc> True, but they seem to come up every couple of weeks.
[12:25] <Lunar_Lander> yeah that would have been my question :)
[12:25] <jgrahamc> Just set an eBay alert. That's how I did it.
[12:26] <Lunar_Lander> thanks :)
[12:29] <Lunar_Lander> ah, ebay alert is a extra program?
[12:30] <jgrahamc> No, you just sign up for them on eBay.
[12:30] <Lunar_Lander> oh ok
[12:31] <jgrahamc> I think I just did a search and it offered me the option to get emailed if any new items matched the search
[12:31] <juxta> Lunar_Lander, the button that says 'save this search'
[12:32] <juxta> thats the one you want :)
[12:32] <Lunar_Lander> ah
[12:33] <Lunar_Lander> "0 results found for yaesu FT-790R. Save Search"
[12:33] <Lunar_Lander> found it :)
[12:34] <fsphil> save another one without the R too
[12:34] <fsphil> some people don't include that in the title
[12:34] <Lunar_Lander> "I would like to receive a daily E-Mail if articles are on sale that match my search"
[12:34] <Lunar_Lander> OK fsphil
[12:35] <Lunar_Lander> yaesu FT-790 saved
[12:35] <Lunar_Lander> yaesu FT-790R saved
[12:36] Action: fsphil is trying to order bits from cpc ... sooooooo sloooooow
[12:36] <Lunar_Lander> thanks again :)
[12:37] <Lunar_Lander> to jgrahamc juxta fsphil
[12:37] <Lunar_Lander> and GW8RAK
[12:37] <Lunar_Lander> :)
[12:38] <Lunar_Lander> btw when we discussed 869 MHz yesterday
[12:38] <Lunar_Lander> german version of ofcom answered my request
[12:38] <Lunar_Lander> and the one answering sent me a PDF about the license exempt frequencies
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[12:39] <Lunar_Lander> it says "Frequency Range: 433.050-434.790/ERP: 10 mW/Additional Parameters: None/Other Limitations of Use: None"
[12:39] <SpeedEvil> So you're in the same boat as UK for 433 at least
[12:40] <Lunar_Lander> there is a footnote that says"The user of the frequency is responsible for obeying the regulations and for possible disturbances caused by him"
[12:40] <Lunar_Lander> yeah
[12:41] <Lunar_Lander> and then it has that passage about 869
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[12:41] <Lunar_Lander> let me translate for you
[12:44] <Lunar_Lander> "Freq. Range: 869.40-869.65 MHz/ERP:500 mW/Additional Parameters: Frequency Access and Disturbance Limitations must be used which obey the regulations in 1999/5/EG. Alternatively, a maximum work cycle of 10% can be used. The channel distance must be 25 kHz, but not if the whole band can be used as one single channel for high-speed data transmissions./Other Limitations of Use:None"
[12:44] <SpeedEvil> hmm
[12:46] <Lunar_Lander> "Work Cycle (relative duration of frequency usage or duty cycle in %) is defined as the partial active transmission in the timespan of one hour at any time."
[12:47] <Lunar_Lander> so, they say: You need to obey 1999/5/EG or have the transmitter on for only 6 minutes per hour
[12:47] <fsphil> eep
[12:48] <fsphil> that kind of spoils the fun
[12:48] <Lunar_Lander> yeah
[12:48] <SpeedEvil> What is 1999/5/EG
[12:49] <Lunar_Lander> http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:1999:091:0010:0028:EN:PDF
[12:49] <Lunar_Lander> DIRECTIVE 1999/5/EC OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL
[12:49] <Lunar_Lander> of 9 March 1999
[12:49] <Lunar_Lander> on radio equipment and telecommunications terminal equipment and the mutual recognition of their conformity
[12:53] <Lunar_Lander> the person also sent me a PDF on "Non-Public Radio"
[12:53] <SpeedEvil> Ah - CE marked.
[12:54] <Lunar_Lander> he wrote that radiosondes operate on 402.3-405.9 MHz and that this band can be used for scientific purposes
[12:54] <Lunar_Lander> but that needs much red tape as I get it
[12:56] <jgrahamc> Lunar_Lander: whereabouts are you in Germany?
[12:56] <Lunar_Lander> Lower Saxony
[12:56] <Lunar_Lander> Osnabruck
[12:58] <jgrahamc> Nice countryside around there for a launch
[12:58] <Lunar_Lander> yeah
[12:58] <Lunar_Lander> one moment
[13:00] <Lunar_Lander> v
[13:00] <Lunar_Lander> http://www2.uni-osnabrueck.de/allgemein/lageplan/geb32-34.html
[13:00] <Lunar_Lander> the physics department
[13:00] <Lunar_Lander> also much open space
[13:03] <Lunar_Lander> http://upload.wikimedia.org/wikipedia/commons/e/ee/AVZ_UniOsnabrueck.jpg
[13:03] <Lunar_Lander> the building manager told me that we could do a parachute drop test from the top balconies
[13:04] <fsphil> ... the TX3H datasheet says <10% or LBT -- which I assume is Listen Before Talk
[13:05] <Lunar_Lander> ah
[13:05] <jgrahamc> Lunar_Lander: that's nice of him.
[13:06] <Lunar_Lander> so that you don't talk into another conversation?
[13:06] <Lunar_Lander> yeah
[13:06] <Lunar_Lander> I'd tie a packet of sugar (1kg) to the chute
[13:06] <jgrahamc> I was thinking of doing something similar from the top floor of the building that I work in.
[13:06] <fsphil> seems so -- though it means you'd have to have a transceiver
[13:06] <Lunar_Lander> yeah
[13:07] <fsphil> and >10km your probably going to hear a lot of radio chatter
[13:07] <Lunar_Lander> yeah
[13:08] <fsphil> but to be honest, 10mw is fine on 434mhz -- the range is excellent
[13:08] <Lunar_Lander> yeah
[13:08] <Lunar_Lander> maybe if you have a 869 500mW that comes on 6 minutes every hour after impact?
[13:08] <Lunar_Lander> but that would be too complex I think
[13:10] <fsphil> on the ground I don't think there'll me much difference in range between the two
[13:11] <jgrahamc> I have a cellular backup for the post landing because I'm pretty sure that my antenna is going to get ruined by the impact.
[13:12] <Lunar_Lander> ah ok
[13:12] <fsphil> hehe, my first landing the coax for the antenna was forced up into the payload box, splitting my pcb :)
[13:12] <Lunar_Lander> xD!
[13:12] <fsphil> my fault for the way I placed it
[13:12] <fsphil> the pcb took the full force of the landing
[13:13] <jgrahamc> Oops
[13:13] <fsphil> and the parachute had got tangled with the balloon, so it was a hard landing too
[13:14] <fsphil> this next launch will be perfect ;-)
[13:17] <Lunar_Lander> :)
[13:17] <Lunar_Lander> http://p56.de/gallery/picture.php?id=1091961640&picture=9
[13:18] <Lunar_Lander> the electronics were mounted vertically, with the batts on top
[13:18] <Lunar_Lander> on impact, the batts smashed the boards
[13:20] <jgrahamc> Ouch
[13:22] <Lunar_Lander> yeah
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[13:50] <Lunar_Lander> damn
[13:50] <Lunar_Lander> RS80 teardown: "The GPS unit emits doppler data, not location data. Useful to track a radiosonde from a fixed station, but not suffcient to perform other common GPS operations. It appears the GPS from this unit will be of limited usefulness to me in any future project, just a pretty bit of circuitry."
[13:52] <SpeedEvil> The antenna is good.
[13:52] <fsphil> woo, just found out my solar inverter is a fire hazard :)
[13:53] <LazyLeopard> magic smoke?
[13:53] <fsphil> not yet, but potentially: http://www.soladin.nl/recall
[13:53] <LazyLeopard> Mind, not much chance of that here...
[13:54] <LazyLeopard> Oh dear...
[13:55] <fsphil> I have mine mounted in a wooden shed
[13:56] <LazyLeopard> Riiight...
[13:59] Action: SpeedEvil suspects an undercooled iron powder inductor.
[14:00] <fsphil> they're too noisy to have in the house
[14:01] <LazyLeopard> Ouch. Not, hopefully RF-noisy too?
[14:02] <russss> I'd assume they wouldn't get CE-marked if they were.
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[14:02] <fsphil> yea, though my antenna is right next to them
[14:03] <fsphil> the unit has no shielding, made of plastic
[14:06] <fsphil> there's a CE mark on the barcode
[14:06] <fsphil> a proper one, not the "China Export" thing
[14:07] <russss> heh
[14:09] <Lunar_Lander> UPS man was just here
[14:09] <Lunar_Lander> he brought my sample temperature sensors from Maxim
[14:09] <StrayVoltage> Maxim <3
[14:10] <fsphil> gotta love samples
[14:10] <Lunar_Lander> yeah
[14:10] <Lunar_Lander> :)
[14:11] <Lunar_Lander> in fancy electrostatic-proof bags
[14:17] <W0OTM> iHAB-3 scheduled to launch next Sat. http://www.ihabproject.com/iHAB-3/
[14:18] <W0OTM> this sat I should say
[14:18] <Lunar_Lander> cool
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[14:19] <Lunar_Lander> what experiments are on this time?
[14:20] <W0OTM> Simplex repeater, and new DTMF control of the HF beacon
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[14:20] <fsphil> what time?
[14:20] <W0OTM> we will demonstrate the ability to activate/deactivate the beacon at controlled intervals
[14:20] <fsphil> I might be in the air at the same time :)
[14:20] <Lunar_Lander> ah
[14:20] <W0OTM> 1500Z
[14:21] <fsphil> ah, this one will be 1100
[14:21] <W0OTM> thats early
[14:21] <W0OTM> :)
[14:21] <Lunar_Lander> but almost noon in europe :)
[14:21] <W0OTM> oh yeah yeha
[14:21] <fsphil> though seeing Tim's sunset video, I'd like to launch later. but not this flight
[14:22] <Lunar_Lander> btw what did the film from iHAB-2 give?
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[14:22] <W0OTM> dunno, the guy is having a hard time finding a local lab that still develops film
[14:22] <W0OTM> ill have to ask him at the next club meeting
[14:23] <Lunar_Lander> ah
[14:24] <W0OTM> grrrrr, damn predictor is stuck at 10% agn
[14:25] <W0OTM> can somone flush the wx data?
[14:25] <fsphil> try now
[14:26] <W0OTM> woot
[14:26] <W0OTM> thx
[14:26] <SpeedEvil> http://cgi.ebay.co.uk/Royal-balancing-Vacuum-Coffee-Maker-Brand-New-002G_W0QQitemZ280479206177QQcategoryZ20671QQcmdZViewItemQQ_trksidZp5197.m8QQ_trkparmsZalgo%3DMW%26itu%3DUCC%26otn%3D14%26po%3DLCA%26ps%3D63%26clkid%3D7406884358224953461
[14:26] <W0OTM> http://habhub.org/predict/#!/uuid=557a61010ce36f6f36c128ffb7f1224bfe7d7916
[14:28] <fsphil> nice flight
[14:30] <W0OTM> what causes the predictor to hang?
[14:31] <W0OTM> I adjusted my launch time by an hour and tried to rerun it and it hangs a 0%
[14:32] <fsphil> afaik it's the noaa servers that stop responding
[14:33] <fsphil> needs to handle errors better
[14:34] <W0OTM> so just keep trying?
[14:35] <fsphil> I've cleared the cache again, give it another shot
[14:35] <fsphil> I wonder if they'd consider disabling caching until it works better
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[14:39] <W0OTM> yup, that fixed it
[14:39] <W0OTM> wow, big difference in 1 hour
[14:39] <W0OTM> http://habhub.org/predict/#!/uuid=356813928ebc2948cbbcf282c94e642d98425a80
[14:40] <fsphil> try the first one again, it might have changed
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[14:41] <W0OTM> ahh yeah
[14:41] <W0OTM> http://habhub.org/predict/#!/uuid=557a61010ce36f6f36c128ffb7f1224bfe7d7916
[14:41] <W0OTM> I wish they would fix this cache issue
[14:41] <fsphil> the wind predictions have probably been updated
[14:41] <W0OTM> I mentioned it couple months ago
[14:41] <fsphil> anything more than 2 days ahead will vary quite a bit with each update
[14:42] <fsphil> prediction for my flight is hovering on the coastline :)
[14:42] <fsphil> could go either way
[14:44] <Lunar_Lander> ttyl
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[14:44] <W0OTM> I know, I just like to keep the website updated
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[14:58] <Upu> hehe I have 5 DS1821+'s here, engineering samples from Maxim, thought the website was broken so kept hitting submit :)
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[15:33] <Hibby> GroupO: Ping?
[15:33] <GroupO> Hibby: pong
[15:33] <Dan-K2VOL> hey
[15:34] <Hibby> just shifting in to the office now - will be 10-15 mins or so.
[15:34] <fsphil> ello Dan, how's things going over yonder?
[15:34] <GroupO> Hibby: kl, so will i head up at 4?
[15:34] <Hibby> aye, sounds good.
[15:34] <GroupO> ok cya then
[15:36] <Dan-K2VOL> hi fsphil
[15:37] <Dan-K2VOL> oh they're moving forward, but I'm a quite afraid of the number of things that were revealed last night to have not been finished on the serverside
[15:37] <Dan-K2VOL> the HF tx is working thouhg
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[15:37] <Dan-K2VOL> hmm
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[15:38] <Dan-K2VOL> looks like mission control is coming online
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[15:38] <Laurenceb> haha
[15:38] Action: Laurenceb pirctures massive nasa style room
[15:39] <Laurenceb> how many machines are there?!
[15:39] <Dan-K2VOL> I suspect Aaron is testing the chat clients
[15:39] <Dan-K2VOL> oh about 10 stations I think
[15:39] <Laurenceb> sounds epic
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[15:42] <Dan-K2VOL> well
[15:42] <Dan-K2VOL> it's a hassle
[15:43] <Dan-K2VOL> to do this damn ocean crossing
[15:44] <Dan-K2VOL> the payload has a lot of remote control-ability
[15:45] <Dan-K2VOL> there's something like 30 specific commands we intend to use via uplink, and we can uplink any I2C command to the I2C bus to any module
[15:46] <Dan-K2VOL> and that's not for fun
[15:46] <fsphil> is that safe?
[15:46] <Dan-K2VOL> haha
[15:46] Action: Laurenceb would worry about RFI
[15:46] <Dan-K2VOL> RFI
[15:46] <Dan-K2VOL> can you explain?
[15:46] <Laurenceb> interference on the bus from all the tx hardware
[15:46] <Laurenceb> i presume the electronics is sheilded
[15:47] <Dan-K2VOL> Hmm good point.
[15:47] <Dan-K2VOL> The sat modem is in a can
[15:47] <Laurenceb> have you tested it working with all the tx hardware running?
[15:47] <Laurenceb> but the tx antenni isnt
[15:47] <Dan-K2VOL> and it's vertical dipole is about .5m away from the electronics using coax
[15:48] <Laurenceb> is the HF and 434mhz?
[15:48] <Dan-K2VOL> I'd have loved to, however Bill brown took his sweet ass time to build the HF
[15:48] <Laurenceb> *there
[15:48] <Dan-K2VOL> and I only got that on Saturday
[15:48] <Dan-K2VOL> but have been running it since then and haven't noticed any problems
[15:48] <Dan-K2VOL> HF and 149Mhz
[15:48] Action: Laurenceb would seriously suggets large amounts of copper tape or equivalent
[15:49] <Laurenceb> around the sensitive tronics
[15:49] <Dan-K2VOL> the HF radio is being strapped to the outside of the box, as it was far too late to get integrated in the payload
[15:49] <fsphil> will 149mhz be used over europe? (assuming it goes that way)
[15:49] <Laurenceb> if you imagine the voltages all that kit is going to induce
[15:49] <Dan-K2VOL> 149 MHz will be used worldwide, it's the ORBCOMM freq
[15:50] <Dan-K2VOL> Laurenceb, hmm, so a faraday cage around the electronics
[15:50] <Dan-K2VOL> interesting, I've never had to do that before
[15:51] <Laurenceb> it may be wise
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[15:51] <fsphil> ah, I thought it was aprs
[15:51] <Dan-K2VOL> nah, we can't spare any weight for hardware that won't help cross the ocean
[15:51] <fsphil> so the satellite is receiving the 149mhz signal?
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[15:51] <Laurenceb> copper tape is expensive
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[15:52] <Laurenceb> maybe copper foil...
[15:52] <Laurenceb> not sure whats avaliable where you are
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[15:52] <Dan-K2VOL> Hmm
[15:52] <Laurenceb> you have to be careful not to short anything - previously ive used copper foil with antistatic pink foam glued to the surface
[15:53] <Laurenceb> for lining enclosures
[15:53] <Dan-K2VOL> I've tested it on a dummy load, but I suppose I should run all the antennas as they will be flight configured
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[15:53] <Laurenceb> there are electrically conductive sprays, but not sure if you want to go down that road at this point
[15:54] <Laurenceb> itd be hard to find something with high enough conductivity
[15:54] <Dan-K2VOL> Well the nice thing is that we can turn the HF off remotely if THAT's causing a problem
[15:54] <Dan-K2VOL> in flight
[15:54] <Laurenceb> s/hard/prob impossible
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[15:54] <Dan-K2VOL> but the sat modem we're stuck with
[15:54] <Laurenceb> to me the HF sounds like the most likely thing to cause issue
[15:54] <Laurenceb> sat modem ant should radiate upwards
[15:54] <Dan-K2VOL> no, it's a vertical dipole
[15:55] <fsphil> the HF is relatively low power
[15:55] Nick change: SpaceBench -> Pat_SpaceBench
[15:55] <Dan-K2VOL> HF is 1 watt I believe, and the sat modem is 5 watts I believe
[15:56] <Laurenceb> :-S
[16:01] <Dan-K2VOL> thanks for the reminders to do the full RF testing guys, adding it to pivotaltracker
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[16:17] <NigeyS> afternoon peeps
[16:17] <NigeyS> god i feel rough :(
[16:17] <fsphil> howdy doo!
[16:18] <NigeyS> hey phil
[16:18] <NigeyS> speedball is in algeria .. again..lol
[16:18] <fsphil> it's definitely speedy
[16:19] <NigeyS> oh aye, them wormholes are pretty good eh :D
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[16:20] <NigeyS> phil, have you tried using landscape ?
[16:20] <jgrahamc> Afternoon NigeyS. Why are you rough?
[16:20] <NigeyS> hey John .. i got no idea, went to bed feeling fine at 5am, just feel all rough and weak now :(
[16:21] <fsphil> depends on what it is NigeyS?
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[16:21] <NigeyS> http://landscape.conical.com
[16:21] <NigeyS> grr
[16:21] <NigeyS> http://landscape.canonical.com
[16:22] <Upu> hey NigeyS
[16:22] <Upu> yes
[16:22] <NigeyS> hey Upu !
[16:22] <Upu> answer to your question of about 24 hours ago :)
[16:22] <Upu> I bought them direct from Inventek
[16:22] <fsphil> nopie, not used that. though it looks fun
[16:22] <NigeyS> ahhh got ya, did they charge you that extortionate shipping price ?
[16:22] <Upu> it worked about about £60 for 2 delivered
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[16:23] <Upu> Can't remember tbh
[16:23] <Upu> they worked out about £35 each with the shipping
[16:23] <NigeyS> hmm there site must be b0rked or something, kept quoting me $78 shipping
[16:23] <Upu> until customs sent me a bill for £25
[16:23] <Upu> let me check
[16:24] <NigeyS> woah gotta love customs!
[16:25] <Upu> 113.13 for 2 delivered
[16:25] <Upu> £35 each
[16:25] <NigeyS> not to bad then after conversion from $
[16:26] <Upu> £35 I thought was fairly reasonable
[16:26] <Upu> don't forget a patch antenna
[16:26] <Upu> and I would get two
[16:26] <Upu> I b0rked one up
[16:26] <NigeyS> yeah its about what i paid for the lassen.. i got 1 here, and will order another lol
[16:27] <NigeyS> ive yet to add the LDR in eagle, im a slow learner!
[16:28] <Upu> might ask them to mark them up as engineering samples next time so customs don't hit me
[16:29] <NigeyS> ahh theres an idea
[16:29] <NigeyS> you're about ready to launch ava now aren't you ?
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[16:30] <Upu> yep
[16:30] <Upu> just need one final part on the filler
[16:30] <Upu> well need to fit one final part
[16:30] <Upu> then I'm good
[16:30] <Upu> some decent weather wouldn't go amiss
[16:31] <NigeyS> haha yeah some nice weather would be good, like no gales and floods for a start!
[16:32] <fsphil> march will be /lovely/ :p
[16:32] <NigeyS> you optimist! :p
[16:32] <fsphil> there'll be no winds or anything :)
[16:32] <NigeyS> haha
[16:32] Action: NigeyS prods phil to wake him from his dream
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[16:32] <NigeyS> hey spacefelix
[16:33] Action: fsphil is making the things-to-bring checklist
[16:33] <spacefelix> NigeyS: Yo.
[16:33] <NigeyS> how's you today ?
[16:33] <spacefelix> Awesome.
[16:33] <NigeyS> fsphil, thermos flask, shovel, windbreak.... lol
[16:33] <spacefelix> And in two places at once. :P
[16:33] <fsphil> evil :p
[16:34] <NigeyS> lol
[16:34] <NigeyS> spacefelix, how you manage that?!
[16:34] <fsphil> Sun cream, sun glasses ...
[16:34] <spacefelix> NigeyS: Job demands. :P
[16:34] <NigeyS> didnt know they made factor -10 :P
[16:34] <fsphil> lol
[16:34] <NigeyS> thought nasa had lots of staff?!
[16:35] <spacefelix> NigeyS: New NASA technology called 'Governmantium' requires so much beureaucratic work that contractors are required to be everywhere at once. :P
[16:35] <spacefelix> NigeyS: Oh man.
[16:35] <NigeyS> haha they'll be chopping you in half before long!
[16:36] <spacefelix> Okay, to piss off any civil servant, say the following words 'Budget Cuts, Commercial Sector, SpaceX...'
[16:36] <spacefelix> What else...
[16:36] <spacefelix> .... oh 'need more contractors'
[16:36] <NigeyS> spacex .. hmm.. they need to work on thei PR a little...
[16:36] <spacefelix> My favorite Civil Servant-Contractor moment.
[16:36] <spacefelix> Okay.
[16:36] <SpeedEvil> They should justhave a massive pork roast.
[16:36] <NigeyS> lol
[16:36] <spacefelix> So I'm in Florida having dinner with some of the civil service guys I work with.
[16:37] <spacefelix> And I'm the only contractor with seven of the guys.
[16:37] <spacefelix> And we are trying to pay the bill in cash.
[16:37] <NigeyS> ouch!
[16:37] <spacefelix> Well....
[16:37] <spacefelix> .... LOL!
[16:37] <spacefelix> How many rocket scientists does it take to count money?
[16:37] <spacefelix> Well, are the civil service?
[16:37] <NigeyS> pmsl!!
[16:37] <spacefelix> If they are, you need one contractor to do all the work and seven civil servants to approve it.
[16:38] <spacefelix> :P
[16:38] <spacefelix> That's when I blurted out 'No wonder we need so much money!'
[16:38] <NigeyS> that's insane!
[16:38] <spacefelix> And all the civil service go '>C'
[16:38] <spacefelix> And I
[16:38] <spacefelix> I'm all 'Oh shit.'
[16:38] <spacefelix> But it was cool.
[16:38] <NigeyS> haha you have to much fun!
[16:39] <spacefelix> I have an unwritten list of 'How to drive NASA civil service insane.'
[16:39] <spacefelix> :P
[16:39] <spacefelix> Confession.
[16:39] <NigeyS> now there's a guy that loves his job :p
[16:39] <spacefelix> I once got the NASA administrator hot under the collar when I was just a fresh young employee. :P
[16:40] <spacefelix> All the guys here who here the story go 'And you still work here?!?'
[16:40] <spacefelix> LOL
[16:40] <NigeyS> :o dare i ask which 1 ?!
[16:40] <Dan-K2VOL> so spacefelix, what exactly did you do there
[16:41] <NigeyS> hey Dan!
[16:41] <NigeyS> your balloon is in algeria btw :P
[16:42] <Dan-K2VOL> oh very good, we won
[16:42] <Dan-K2VOL> :-P
[16:42] <Dan-K2VOL> yes, it's a little special in the head right now
[16:42] <spacefelix> Okay.
[16:42] <spacefelix> So....
[16:42] <NigeyS> haha did we miss the part where you hooked up an ion drive ?
[16:42] <spacefelix> .... look at the U.S. NASA National Archives.
[16:42] <Dan-K2VOL> heh, someday it would be good to have some sort of TESTSIMULATION mark on these things
[16:43] <spacefelix> Somewhere under Fall 2007, when Michael Griffin visited NASA Marshall Spaceflight Center.
[16:43] <Dan-K2VOL> NigeyS, we also came back, if you look at the path!
[16:43] <Dan-K2VOL> just cause we can :-P
[16:43] <spacefelix> So I am a fresh young employee, started that year.
[16:43] <Dan-K2VOL> yeah the ion drive worked great, gotta love those energizers
[16:43] <NigeyS> yeah, twice in 24 hours, thats dam good dude lol
[16:43] <spacefelix> And I'm hearing talk about Constellation possibly being cancelled.
[16:43] <spacefelix> And talk about NASA not being a U.S. Priority anymore.
[16:44] <NigeyS> yikes, you had agro with griffin and survived :o
[16:44] <spacefelix> So I want to know from The Man himself if NASA is worth working for.
[16:44] <spacefelix> I had previously considered SpaceX as a career path.
[16:44] <NigeyS> and im imagine that went down like a lead balloon?
[16:44] <Dan-K2VOL> Spacefelix, I mean what is your job
[16:45] <spacefelix> So in front of the whole gathered center, I asked him 'How do you intend to keep NASA's current space goals going with the upcoming change in administration?'
[16:45] <spacefelix> Everyone looks at me.
[16:45] <spacefelix> Mike's face falls.
[16:45] <NigeyS> lol oh what a picture
[16:45] <Dan-K2VOL> ah, you're a jerk
[16:45] <spacefelix> And even the lady who handed me the mike takes it back while saying huffily 'Thanks for the question.'
[16:46] <spacefelix> And Mike starts going 'That'll never happen *rumble rumble rumble rumble* Someone already asked that question *rumble rumble*.'
[16:46] <spacefelix> And I'm all 'I would like to die right now please.'
[16:47] <spacefelix> Guy next to me start laughing and leans over and says 'Wow, that's quite a question.'
[16:47] <NigeyS> meh, thats the only bad thing about nasa, your goals can change whenever a new guy comes to the white house, you plan for stuff 20 years ahead, and the next president can just say no tnx :/
[16:47] <spacefelix> And it was all caught on national TV and now probably somewhere in Cheyenne Mountian for all time. :PPP
[16:48] <NigeyS> well you got balls .. !
[16:48] <spacefelix> NigeyS: Exactly. I wanted to know if there is a guarantee that we will have a program. And the answer is 'No, what the hell can the administrator do about it? :/'
[16:48] <fsphil> spaceballs ;)
[16:48] <NigeyS> lol fsphil !
[16:48] <spacefelix> LOL.
[16:48] <spacefelix> So for the next 2 months, everyone is looking at me and grinning.
[16:48] <spacefelix> And I'm all '-_-'
[16:49] <NigeyS> it's pretty dumb how it's set up, all that money wasted on now canceled projects, couldve gone into something concrete .. but meh ..
[16:49] <spacefelix> The irony is that when Griffin left NASA and Bolden took his place, he is now a professor at the University I'm currently part-timing at.
[16:49] <spacefelix> I took a class with him.
[16:49] <spacefelix> ...
[16:49] <spacefelix> .....
[16:49] <spacefelix> .......
[16:49] <spacefelix> ................
[16:49] <spacefelix> ............................................
[16:49] <spacefelix> Holy shit.
[16:49] <spacefelix> [eol]
[16:49] <spacefelix> He is a tough prof. That's all. :P
[16:49] <NigeyS> lol
[16:50] <spacefelix> And I think he recognized me. :PPP
[16:51] <spacefelix> Dan-K2VOL: Space Shuttle Program Safety & Mission Assurance.
[16:51] <NigeyS> Dan-K2VOL, just out of plain curiosity .. what was with the chickens last night? :|
[16:52] <spacefelix> NigeyS: LOL. Okay, so what we do is we start a program, cancel it, then we restart it a few years later. :P
[16:52] <spacefelix> And we do that several times before it's done. :PPPPPPPPP
[16:52] <NigeyS> sounds about right lol
[16:53] <spacefelix> Now tell me again why does the mention of SpaceX get a Civil Servant hopping mad?
[16:53] <spacefelix> LOL. :P
[16:53] <NigeyS> you must get lesson for the M.O.D they do that to !
[16:53] <spacefelix> MOD?
[16:53] <NigeyS> from*
[16:53] <NigeyS> ministry of defence
[16:53] <NigeyS> they love to start a program, delay it, restart it, and quadruple costs etc
[16:53] <spacefelix> Hahah!
[16:53] <spacefelix> NASA came out of the Army. :P
[16:54] <spacefelix> Hold on.
[16:54] <spacefelix> Here's a good joke for you.
[16:54] <spacefelix> Government scientists have found the heaviest element in the world.
[16:54] <spacefelix> They have called in Governmentium.
[16:54] <NigeyS> haha nice 1 ! :P
[16:54] <spacefelix> It is held together by Contractium.
[16:55] <spacefelix> And Morons orbit its outer shells. :P
[16:55] <NigeyS> lol
[16:56] <Dan-K2VOL> NigeyS the chickens were a workshop teaching how to raise chickens in city backyards :-)
[16:56] <Dan-K2VOL> there were real chickens there
[16:56] <Dan-K2VOL> mission control sim ran long into the block of time for the workshop
[16:56] <NigeyS> i had to look twice at the vid to realise they were actually real!
[16:56] <fsphil> Chickens? Did I miss something?
[16:56] <Dan-K2VOL> we set them up in the back of the room
[16:56] <Dan-K2VOL> haha
[16:57] <NigeyS> ahh of course, i forget its a shared workshop
[16:57] <Dan-K2VOL> hackerspaces have such odd combinations of interests! I love being exposed to such things like that, I'd never think twice about going to a chicken workshop, and I don't plan to own any, but still, it's neat to see
[16:57] <NigeyS> was funny though the gf was in here and said "i can hear chickens"
[16:57] <fsphil> aah, on the webcam. you trying to out-do the aussies horse?
[16:57] <Dan-K2VOL> haha
[16:58] <Dan-K2VOL> I missed that!
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[16:58] <NigeyS> im disappointed with the aussies, im still awaiting a kangaroo!
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[16:58] <NigeyS> hey James
[16:58] <Dan-K2VOL> yes, once the chickens started clucking we couldn't keep it together, and just went over and learned how to ship chickens in the mail
[16:58] <NigeyS> welcome to the animal zoo :p
[16:59] <Dan-K2VOL> haha hey James
[16:59] <fsphil> there's a very tame robin at our launch site
[16:59] <Dan-K2VOL> oh?
[16:59] <NigeyS> shipping them is easy, kill them, freeze them, sellofane them :p
[17:00] <jcoxon> hey Dan-K2VOL so sim over?
[17:01] <fsphil> I'll have to get a video clip of him .. he was having a good nosie about when we where filling the balloon
[17:01] <NigeyS> havent seen a robin in years :(
[17:01] <Dan-K2VOL> hey jCoxon, we're going to restart it tonight
[17:02] <Dan-K2VOL> ran into too many bugs with systems to keep going
[17:02] <jcoxon> thats okay
[17:02] <jcoxon> i've improved my script to ignore some of the crazy points
[17:02] <jcoxon> will run it again for you - just say when
[17:02] <Dan-K2VOL> heh, thanks, that's our GPS simulator trying to throw curveballs our way on purpose
[17:02] <Dan-K2VOL> thank you
[17:02] <Dan-K2VOL> got Bill's HF tx working too
[17:03] <jcoxon> with real data?
[17:03] <jcoxon> or the sim data at least?
[17:03] <Dan-K2VOL> yes, it's rather stationary
[17:03] <jcoxon> great
[17:03] <jcoxon> now i can combine the two
[17:03] <jcoxon> so it appears as one trajectory
[17:03] <Dan-K2VOL> yeah, it was being rejected by the spacenearus though
[17:03] <Dan-K2VOL> WB8ELK2 is the callsign
[17:03] <Dan-K2VOL> said that there was 1 field where 0 was expected
[17:04] <Dan-K2VOL> cool
[17:04] <jcoxon> if you give me a string i'll fix it
[17:04] <Dan-K2VOL> hmm just a sec
[17:04] <jcoxon> no worries
[17:04] <jcoxon> when ever really
[17:04] <jcoxon> i'll be around this evening
[17:04] <Dan-K2VOL> ok, yeah teamviewer is not cooperating at the moment
[17:05] <Dan-K2VOL> we'll be trying to start the sim flight again around 0000 UTC
[17:05] <jcoxon> eek
[17:05] <Dan-K2VOL> which is the time of the real flight launches, acutally
[17:05] <jcoxon> okay
[17:05] <Dan-K2VOL> heh that's 7PM here
[17:05] <jcoxon> i'll pop on and fix it then sleep
[17:05] <jcoxon> have work tomorrow
[17:06] <Dan-K2VOL> I'll let you know as soon as I get there what the string is, I get out of work around 2200 UTC
[17:06] <jcoxon> okay
[17:06] <Dan-K2VOL> did you have a good trip?
[17:07] <jcoxon> yes thanks
[17:07] <jcoxon> very good
[17:07] <Dan-K2VOL> good to hear!
[17:07] <Dan-K2VOL> I'm hoping to take one again someday too :-P
[17:09] <LazyLeopard> fsphil: the robins in my garden are quite prepared to get within a foot of me if I'm actually turning soil, or otherwise looking like I might stir up something edible.
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[17:10] <fsphil> yea they're usually first on the scene after I tidy the garden
[17:10] <fsphil> them or the starlings
[17:11] <LazyLeopard> Don't get many starlings here these days.
[17:11] <NigeyS> my cat loves the starling
[17:11] <NigeyS> s*
[17:12] <fsphil> Yea they're in decline in places, still loads about here
[17:13] <Dan-K2VOL> ah starlings those are nasty birds
[17:13] <Dan-K2VOL> here anyway
[17:13] <NigeyS> noo magpies are nasty!
[17:13] <Dan-K2VOL> haha don't have those
[17:13] <fsphil> Magpies are ... odd :)
[17:13] <NigeyS> bloody evil things!
[17:13] <fsphil> I like 'em, they're pretty smart
[17:14] Action: LazyLeopard has a particular liking for the starlings back home. They're rather more colourful than the ones here.
[17:15] <fsphil> woo, home time :)
[17:20] <Dan-K2VOL> ah jealous fsphil
[17:20] Action: russss is enjoying the view on NASA TV http://www.nasa.gov/multimedia/nasatv/ustream.html
[17:21] <Dan-K2VOL> Except they aren't letting that through to the UStream mobile apps
[17:21] <russss> ah sucks
[17:22] <russss> probably something to do with their premium subscription.
[17:22] <russss> I'm just glad there's finally a Flash version.
[17:23] <Dan-K2VOL> ah got the H.264 stream from nasatv website to work on iPhone
[17:23] <Dan-K2VOL> nice quality
[17:23] <russss> h.264?
[17:23] <Dan-K2VOL> the link on Nasa TV's site for iPhone/iPad
[17:25] <russss> weird
[17:25] <russss> Content-Type: video/mp2t
[17:25] <russss> not h.264 by the looks of things
[17:25] <russss> google chrome doesn't want to play it in-browser
[17:26] <russss> but I never noticed that link before.
[17:29] <fsphil> mplayer is not liking the iphone stream
[17:30] <Dan-K2VOL> quicktime does well with it if you have it
[17:30] <russss> fsphil: mplayer -playlist 'http://playlist.yahoo.com/makeplaylist.dll?id=1368570'
[17:30] <fsphil> oh cool, there's an HD stream
[17:30] <russss> that's the 500kbps wmv version, iirc
[17:30] <fsphil> http://liveips.nasa.gov.edgesuite.net/msfc/Wifi.m3u8
[17:30] <russss> but the ustream has the best quality I think
[17:31] <fsphil> the HD one looks sweet
[17:31] <russss> at any rate most of the ISS downlinks are VGA
[17:31] <russss> oh wow
[17:31] <fsphil> yea :D
[17:31] <russss> that one's better.
[17:31] <russss> animated nasa logo!
[17:31] <fsphil> mplayer is still dying though
[17:31] <russss> yeah I keep getting TS_PARSE: COULDN'T SYNC
[17:32] <fsphil> vlc is happy
[17:32] <russss> vlc it is
[17:33] <fsphil> or not
[17:33] <Pat_SpaceBench> hello gentlemen, is there someone from UK inhere?
[17:33] <NigeyS> lots :)
[17:34] <russss> no, vlc fails too
[17:34] <russss> wtf is this shit
[17:34] <fsphil> yea, TS discontinuity (received 6, expected 0) for PID 0
[17:34] <Dan-K2VOL> beats me
[17:34] <russss> that file is actually a playlist
[17:34] <russss> oh wait
[17:34] <NigeyS> its a special list, it sends the data in chunks
[17:34] <russss> I think it's meant to stitch them together
[17:34] <NigeyS> normally 30 second chunks
[17:34] <russss> fucking perverse
[17:34] <fsphil> oooh
[17:34] <fsphil> that's mad
[17:35] <NigeyS> its the only way to stream to ipad/iphone properly
[17:35] <NigeyS> Pat_SpaceBench, whats up ?
[17:35] <Pat_SpaceBench> currently I'm in Cambridge. Do you do any in person meet-ups?
[17:35] <NigeyS> jcoxon is in cambridge i think ...
[17:35] <Pat_SpaceBench> I'm interested in the subject & I'm looking for someone more experienced
[17:36] <Pat_SpaceBench> in high altitude adventures :)
[17:37] <Pat_SpaceBench> Cambridge or South London
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[17:47] <jcoxon> NigeyS, nah i'm not
[17:47] <jcoxon> but people such as eroomde and jonsowman are
[17:47] <jonsowman> hello hello
[17:48] <Dan-K2VOL> Jonsowman is Sowman your last name?
[17:49] <jonsowman> indeed it is
[17:49] <jonsowman> why?
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[18:01] <NigeyS> ahh sorry jcoxon thought you were in Cam
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[18:12] <Dan-K2VOL> jonsowman lol sorry to leave that hanging
[18:13] <Dan-K2VOL> Just wondering, I misread your name as snowman ages ago when I first saw it, and had meant to ask since then. Wondered if you were perhaps the last in a long line of distinguished winter sculptors :-)
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[18:21] <Pat_SpaceBench> question by newbie: what's the altitude where the regular cellular network is still usable?
[18:22] <jcoxon> up to 2000m
[18:22] <jcoxon> its a horizontal network really
[18:23] <Pat_SpaceBench> that's what I was thinking, thanks
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[18:34] <fsphil> shame that, but understandable
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[18:41] Nick change: spacefelix_ -> spacefelix
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[18:42] <jcoxon> ping DanielRichman
[18:42] <jcoxon> oops
[18:42] <jcoxon> thats not who i wanted
[18:42] <DanielRichman> >.>
[18:43] <DanielRichman> hi ;)
[18:43] <jcoxon> but hey DanielRichman !
[18:43] <jcoxon> hope all is well
[18:43] <DanielRichman> indeed it is :-)
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[19:08] <jcoxon> ping natrium42
[19:13] Nick change: spacefelix_ -> spacefelix
[19:23] <spacefelix> Hello, where may I get my hands on 1km of magnetic wire (16 gauge)?
[19:24] <SpeedEvil> Do you mean 'magnet wire' ?
[19:24] <SpeedEvil> Also - ebay
[19:25] <NigeyS> http://www.parawire.com/magnetwirestore.shtml
[19:26] <SpeedEvil> http://cgi.ebay.co.uk/4KG-ENAMELLED-COPPER-WINDING-WIRE-MAGNET-WIRE-16-SWG-/110649363389?pt=UK_BOI_Electrical_Components_Supplies_ET&hash=item19c3374bbd
[19:26] <SpeedEvil> 1km of 16 guage is quite a lot
[19:26] <NigeyS> thats a heck of alot of wire!
[19:26] <SpeedEvil> Do you mean SWG or AWG?
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[19:27] <jcoxon> hehe some #highaltitude history...
[19:27] <jcoxon> http://www.pegasushabproject.org.uk/zeusbot/2006/highaltitude.log.04Jan2006
[19:27] <GW8RAK> What is magnet wire spacefelix?
[19:27] <SpeedEvil> it's justanother name for enamelled copper wire.
[19:28] <spacefelix> Ja.
[19:28] <spacefelix> My friend needs it because she is evil.
[19:28] <spacefelix> And trying to take over the world by consuming all of the wire!
[19:28] <spacefelix> Muuhhhahah!
[19:28] <NigeyS> you used to use pipex .. remember using them back in the dialup days
[19:29] <GW8RAK> Okay. I was going to suggest surplus spools of wire from wire guided missiles. I've seen them before and they were very cheap for 2-3km of wire.
[19:29] <spacefelix> We wil be forced to transmit electrons one by one by hand. :P
[19:29] <spacefelix> Ooooooooo.
[19:29] <spacefelix> Tell me.
[19:29] <GW8RAK> But probably stainless steel
[19:30] <SpeedEvil> 16 guage * 1km is around 20Kg of wire
[19:30] <spacefelix> :C
[19:31] <NigeyS> who wants to guess the shipping cost for that then? :p
[19:32] <GW8RAK> Depends if it's in a straight line or not :)
[19:32] <SpeedEvil> It can be reasonable.
[19:36] <Laurenceb_> i never understood why they dont burn the wire
[19:36] <Laurenceb_> guess if tis stainless
[19:36] <SpeedEvil> ablative?
[19:36] <Laurenceb_> heh maybe
[19:37] <Laurenceb_> guess its not in the exhaust for long
[19:37] <SpeedEvil> Also I vaguely recall some use canted nozzles
[19:38] <Laurenceb_> oh that reminds me i found you can buy phenolic powder filler
[19:38] <Laurenceb_> useful for ablatives
[19:38] <jcoxon> bbl
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[19:38] Action: SpeedEvil wants to make carbon-carbon.
[19:38] <GW8RAK> The wire is coiled in both the missile and the launcher and unreels from both ends at the same time. So the time for any piece of wire to be in the exhaust is short.
[19:38] <Laurenceb_> thats... odd
[19:39] <Laurenceb_> guess it saves n mass in the missile
[19:39] <SpeedEvil> Also reduces the jerk on the wire.
[19:42] <Laurenceb_> yeah, thats probably why
[19:43] Action: SpeedEvil fails to win at ebay.
[19:43] <SpeedEvil> Lowballing a huge batch of stuff.
[19:49] Zuph (~bradluyst@2001:470:8:626:222:43ff:fe71:9992) joined #highaltitude.
[19:49] <NigeyS> hey Zuph !
[19:50] <Zuph> Morning NigeyS
[19:51] <Zuph> Or afternoon, more accurately.
[19:51] <Zuph> I just woke up though
[19:51] <NigeyS> hah i woke up at 4pm dont worry :P
[19:52] <Zuph> Fair enough
[19:52] <NigeyS> i blame the LVL1 chickens
[19:53] <fsphil> are they up to no good?
[19:53] <fsphil> trying to fly to freedom?
[19:53] <NigeyS> i think dans going to roast 1 next time lol !
[19:54] <Zuph> heh
[19:54] <Zuph> The chickens went home shortly after you fellows went to bed :-p
[19:55] <Zuph> Then we had waffles.
[19:55] <NigeyS> you sure ALL of them left? if someone walks in tonight with chicken sandwiches..........
[19:56] <fsphil> funny enough I had a chicken burger earlier
[19:56] <NigeyS> lol, i cant honestly look at a live chicken without thinking.. sunday lunch :|
[19:56] <Zuph> That wouldn't be too weird. There's a great fried chicken joint just a couple blocks up the road. The kind of place where the counter is behind 3 inches of bulletproof glass.
[19:56] <NigeyS> blimey!
[19:57] <fsphil> to protect the employees, or the customers?
[19:57] <Zuph> The employees, in general.
[19:58] <Zuph> 10 years ago, that was probably necessary in this part of town.
[19:58] <NigeyS> reminds me of the 24 hour spar i used to work out, i got assaulted by flying cabbages once :|
[19:58] <NigeyS> at*
[19:59] Action: natrium42 moves away from NigeyS slowly
[20:00] <NigeyS> lol
[20:05] <Zuph> There's also a great burger place in town with a similar amount of protection for the cashiers.
[20:05] <NigeyS> i guess in a country where its legal to own a gun that kinda protection would be standard ?
[20:06] <Dan-K2VOL> nigey, what's a spar
[20:06] <natrium42> only in some areas :P
[20:06] <Zuph> Not really. Only in really crappy areas. Or formerly crappy areas.
[20:06] <NigeyS> Dan-K2VOL, general purpose store, groceries, alcohol, etc
[20:07] <NigeyS> they guy had this silly idea i was going to let him walk out of the store with a crate of beer he hadn't paid for, so stopped him by the vegetable counter and got assaulted by cabbages.. fun fun
[20:09] <Dan-K2VOL> wow nice
[20:09] <natrium42> cabbage'd
[20:09] <Dan-K2VOL> could have been worse, he might have reached for apples or melons
[20:09] <Dan-K2VOL> lol
[20:10] Action: spacefelix hands NigeyS the riot shield.
[20:10] <NigeyS> haha i was hoping he didnt spot the watermelons .. messy !
[20:12] Action: natrium42 refrains himself from making a stereotypical joke
[20:13] <NigeyS> haha dont go there :p
[20:16] <Zuph> How's it going for you today, Dan-K2VOL?
[20:21] <Dan-K2VOL> Oh hi Zuph
[20:22] <Dan-K2VOL> not bad, a little tired, but that's usual for the White Star Winter
[20:22] <Zuph> HEH
[20:22] Last message repeated 1 time(s).
[20:22] <Dan-K2VOL> james is working hard with natrium42 on the spacenear.us integration
[20:24] <Dan-K2VOL> natrium42, who takes care of the code that plots paths on the map?
[20:24] <Dan-K2VOL> how are you Zuph
[20:24] <Dan-K2VOL> I think we should schedule massueses in for mission control
[20:25] <Zuph> Oh, not quite so tired, but I had to sleep in until 2 to get there.
[20:25] <Dan-K2VOL> glad
[20:26] <Dan-K2VOL> to hear you got to, have to recover sometime
[20:26] <Hiena> Hmmm...The muesli cake smells sweet. So this time i'm not mixed the sugar, with the ammonium-nitrate.
[20:27] <Dan-K2VOL> Europe damnit, we're gonna land this blasted box on you, it will not defeat us
[20:27] <Zuph> hah, we're close!
[20:27] <Dan-K2VOL> however, I'd settle for africa too
[20:27] <Dan-K2VOL> it's so close it's making me want to throw the thing up and run
[20:27] <Hiena> Dan-K2VOL, traget Russia and you will hit Europe, when you miss it.
[20:28] <Dan-K2VOL> hehe right on hiena
[20:28] Action: fsphil prepares counter-measures
[20:28] <natrium42> < Dan-K2VOL> natrium42, who takes care of the code that plots paths on the map? <-- that would be me
[20:29] <natrium42> oh, it's also open source "do whatever you want with it" kinda deal
[20:30] <Dan-K2VOL> hehe fsphil as long as you shoot 'er down over dry land i'm OK with that
[20:31] <fsphil> deal :)
[20:31] <NigeyS> what you mean you dont have a speedboat for a wet recovery dan? :P
[20:31] <fsphil> hmm.. balloon mounted spud gun
[20:31] <Dan-K2VOL> hahaha
[20:31] <NigeyS> balloon mounted pea shooter!!
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[20:34] <Zuph> Dan-K2VOL: Do you know if there's anyway to change the size of the cache that dropbox keeps locally?
[20:36] <Dan-K2VOL> ah zuph, yes, but it's something that I've only seen in convoluted forum posts
[20:36] <Dan-K2VOL> getting to be a monster eh?
[20:36] <Zuph> It's taking up 50% of my /home partition
[20:37] <Dan-K2VOL> yipes
[20:37] <Dan-K2VOL> natrium42 check pm
[20:38] <NigeyS> But wait, it also keeps a local cache on each machine in a hidden directory and with no way to change settings for its size and expiration.
[20:38] <NigeyS> that really sucks
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[20:59] <GW8RAK> In order to do this project we need:
[20:59] <GW8RAK> Sorry, wrong window.
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[21:00] <Zuph> evening, jcoxon
[21:01] <imrcly> someone should tell the morning to stop being so early
[21:01] <jcoxon> hey Zuph
[21:01] <Zuph> About the messed up lats/lons: Our GPS simulator intentionally has a few glitches like that so we can see how our flight computer deals with completely bizarre GPS data.
[21:02] <jcoxon> thats no issue (now :-p)
[21:02] <jcoxon> see PM
[21:02] <Zuph> Roger :)
[21:03] <jcoxon> Dan-K2VOL, i think on of the reasons why the HF tx'er isn't going onto the map is your ground station has WB8ELK selected not WB8ELK@
[21:03] <jcoxon> WB8ELK2* that is
[21:04] <imrcly> it was going on raw data last night
[21:04] <imrcly> just not the map
[21:04] <jcoxon> okay, i'll fix it
[21:04] <jcoxon> one sec
[21:06] <jcoxon> imrcly, hmmm i just grabbed one of the strings
[21:06] <jcoxon> it is going to the map but its txing WB8ELK's farm house lat/lon
[21:06] <imrcly> maybe the gps didn't lock
[21:07] <Zuph> heh
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[21:07] <jcoxon> yeah perhaps thats the last its got
[21:07] <Zuph> I thought it wasn't supposed to TX unless it locked
[21:07] <jcoxon> perhaps it needs to be flushed
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[21:07] Nick change: GW8RAK_ -> GW8RAK
[21:07] <Zuph> It started blasting as soon as it turned on, that's for sure!
[21:08] <Zuph> Heh, Bill's transmitter uses as much power idle as the rest of our payload :-p
[21:08] <NigeyS> :o
[21:13] <Dan-K2VOL> jcoxon sorry, yea, I changed it to wb8elk to see if that would help, and forgot to cahnge it back
[21:13] <Dan-K2VOL> our remote control of that PC is down today for some reason, I'll ahve to change it in about an hour
[21:14] <Dan-K2VOL> I think that GPS probably just fed out the last location
[21:14] <jcoxon> Dan-K2VOL, no worries
[21:14] <jcoxon> thats what i suspect
[21:14] <jcoxon> i'll clear spacenear.us and you can check later
[21:15] <Zuph> His transmitter and our arrangement to turn it on and off is about the only thing on this project that has worked without too much headache :-p
[21:15] <Zuph> Dan-K2VOL: Clearly we need to contract out more work.
[21:15] <Dan-K2VOL> heh, carl's stuff also worked pretty flawlessly
[21:15] <Dan-K2VOL> well wait
[21:15] <Dan-K2VOL> no not at all
[21:15] <Dan-K2VOL> lol
[21:16] <Zuph> hah
[21:16] <Dan-K2VOL> that was awful
[21:16] <imrcly> it did work just not as intended
[21:16] <Dan-K2VOL> trying to get that cutdown to talk
[21:16] <Dan-K2VOL> true imrcly
[21:16] <Zuph> Dan-K2VOL: Rose tinted glasses :-p
[21:16] <Dan-K2VOL> it certainly burned ropes just fine
[21:16] <Dan-K2VOL> just wouldn't stop
[21:16] <Dan-K2VOL> !
[21:17] <Zuph> We're going to burn down the Ardennes
[21:17] <imrcly> it would have been fine in africa
[21:21] <imrcly> http://www.cnn.com/2011/TECH/innovation/02/28/FAA.approves.iPads/index.html
[21:24] Lunar_Lander (~lunar_lan@p548823CC.dip.t-dialin.net) joined #highaltitude.
[21:24] <Lunar_Lander> hello
[21:25] <Lunar_Lander> hi NigeyS Upu StrayVoltage :)
[21:25] <Upu> o7
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[21:25] <NigeyS> hey lunar
[21:25] <NigeyS> ello upuuuuuuuu
[21:26] <Lunar_Lander> "NEW Humidity Sensor SHT21 – Get Your Free Sample!"
[21:26] <Upu> What this channel needs is more WhiteStar's
[21:26] <Lunar_Lander> it says there
[21:26] <Lunar_Lander> and then it says "output format
[21:26] <W0OTM> Helo Wporld
[21:26] <Upu> hi W0OTM
[21:26] <Lunar_Lander> "I2C digital" "PWM" "SDM/analog Volt"
[21:26] <Lunar_Lander> what is the best?
[21:27] <Upu> Arduino has I2C libraries
[21:27] <NigeyS> i'd go with i2c
[21:27] <Lunar_Lander> ah
[21:27] <Lunar_Lander> "Please carefully describe your project – free samples of the new humidity sensor will only be sent to business customers (no private persons)."
[21:27] <Upu> http://www.google.co.uk/search?source=ig&hl=en&rlz=&q=i2c+library+avr&aq=1&aqi=g2g-m7g-v1&aql=&oq=i2c+lib
[21:27] <Upu> "high alititude research platform"
[21:27] <Lunar_Lander> hm, so I need to get out my convincement package again
[21:27] <Lunar_Lander> yeah :D
[21:28] <Lunar_Lander> thanks Upu
[21:31] <Dan-K2VOL> yes I2C over the others
[21:33] <Zuph> We've had pretty good luck with I2C
[21:34] <jcoxon> Zuph, is balastRemaining meant to be ballastRemaing?
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[21:35] <Zuph> jcoxon: Sure is.
[21:35] <Zuph> That's in grams, btw.
[21:36] <jcoxon> not mispelt then :-p
[21:37] <Zuph> Some of our code files still have "balon" throughout.
[21:37] <jcoxon> fair enough
[21:37] <imrcly> bolooon
[21:37] <Lunar_Lander> LOL
[21:37] <Lunar_Lander> NigeyS ?
[21:39] <W0OTM> http://forums.qrz.com/showthread.php?287035-iHAB-3-Launch-Announcement-March-5-2011
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[21:42] <fsphil> can anyone suggest a good 1-wire library for avr? (not arduino)
[21:49] <jcoxon> ping Dan-K2VOL, Zuph
[21:49] <jcoxon> what telem fields do you want displayed?
[21:50] <Zuph> We're very interested in ice, ext. temp and humidity. Speed, climb and ballast are all very related to flight dynamics, too.
[21:51] <jcoxon> okay
[21:51] <jcoxon> lets start with that
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[22:04] <imrcly> number of hotpockets in the freezer is also important
[22:04] <imrcly> and coffee pot level
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[22:37] <Lunar_Lander> calling November India Gulf Echo Yankee Sierra or Uniform Papa Uniform
[22:37] <Lunar_Lander> :)
[22:39] <russss> I don't think they'll have IRC highlights on those ;)
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[22:39] <Lunar_Lander> xD
[22:40] <NigeyS> haha nice 1, wassup lunar ?
[22:41] <Lunar_Lander> remember when I said I'd better tell you my complete system plan?
[22:41] <Lunar_Lander> like two days ago?
[22:41] <NigeyS> yup
[22:41] <Lunar_Lander> do you have a minute for that maybe?
[22:41] <Lunar_Lander> *please
[22:42] <NigeyS> sure
[22:42] <Lunar_Lander> OK
[22:42] <Lunar_Lander> what I would like to have is firstly a system that broadcasts the GPS data to the ground
[22:43] <NigeyS> yuhuh
[22:43] <Lunar_Lander> the way it is described in the wiki
[22:43] <Lunar_Lander> :)
[22:43] <Lunar_Lander> yeah that is easy I suppose/think/assume?
[22:43] <NigeyS> wouldnt say any of it is easy as such
[22:43] <NigeyS> but doable :p
[22:44] <Lunar_Lander> :)
[22:45] <Lunar_Lander> and then I'd like to have an array of sensors which write their readings onto an SD card. For starters, I'd like to have pressure, temperature & humidity
[22:47] <NigeyS> yo umight be able to use OpenLog instead of an sdcard, not used it myself but im sure someone here has a better idea of it
[22:47] <Lunar_Lander> I looked at the OpenLog
[22:47] <Lunar_Lander> I think a SD card goes in there?
[22:48] <imrcly> yes
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[22:49] <NigeyS> yup, it's a nice unit, compared to an sdcard shield
[22:49] <Lunar_Lander> and somehow, the sensors need to be wired to that, respectively the Arduino needs to write the sensor readings to the OpenLog
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[22:54] <Lunar_Lander> right?
[22:54] <imrcly> sounds like a plan
[22:55] <NigeyS> yups, sounds good lunar
[22:56] <Lunar_Lander> yeah
[22:56] <Lunar_Lander> how many OpenLogs do I need?
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[23:03] <Lunar_Lander> by connecting them in parallel?
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[23:04] <imrcly> yes you can share them to all the devices that need that particular voltage, like you would with the ground
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[23:04] <Lunar_Lander> ah
[23:04] <Lunar_Lander> so that is what you meant with the "power line" NigeyS ?
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[23:05] <imrcly> they are just a power source, one thing to watch is brownouts if you are running batteries
[23:06] <Lunar_Lander> ah
[23:07] <Lunar_Lander> so: 3.3V->pressure sensor->humidity sensor->GND
[23:07] <Lunar_Lander> (simplified)
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[23:08] <jcoxon> Lunar_Lander, nah thats in series
[23:08] <Lunar_Lander> yeah I know
[23:08] <jcoxon> 3.3->pressure sensor->gnd
[23:08] <Lunar_Lander> I just don't know how to "write" in parallel :)
[23:08] <Lunar_Lander> ah
[23:08] <Lunar_Lander> yeah
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[23:08] <Lunar_Lander> wait
[23:09] <imrcly> and 3.3 > humidity sensor > gnd
[23:09] <Lunar_Lander> yeah
[23:09] <Lunar_Lander> do you know those laboratory wires?
[23:10] <Lunar_Lander> where the plugs can be connected together?
[23:10] <Lunar_Lander> http://www.mercateo.com/p/115-100300/LK410_X_Laborkabel_4_mm_gelb_gruen_150_cm.html#multi-contact-lk410-x-laborkabel-o-4-mm-gelb-gruen-150-cm-multi-contact
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[23:10] <Lunar_Lander> like that
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[23:10] <imrcly> yes
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[23:11] <Lunar_Lander> and I'd have one of these in the 3.3V port
[23:11] <imrcly> a good example is a breadboard
[23:12] <Lunar_Lander> and then for the second one, I'd plug the cable into that plug?
[23:12] <imrcly> there is power rails down the sides
[23:12] <Lunar_Lander> yes
[23:12] <imrcly> you can do one side 3.3 and gnd && the other side 5v and gnd
[23:13] Action: natrium_ pokes jcoxon in the eye
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[23:14] <Lunar_Lander> yes
[23:14] <Lunar_Lander> and then the one rail is 3.3 V all the way
[23:14] <imrcly> yep
[23:14] <imrcly> i would mark it with color marker or something if you are prone to forgeting what you are doing
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[23:15] <imrcly> you don't want to mix the 3.3v and 5v
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[23:15] <NigeyS> 3.3 things frazzle at 5v ;)
[23:15] <fsphil> makes a lovely noise
[23:15] <imrcly> or worse you accidnetly send 5v into your 3.3v on the arduino and things start smelling bad
[23:16] <NigeyS> like a nice sizzling popping noise? :p
[23:16] <fsphil> swiftly followed by loud swear-like noises :)
[23:16] <Lunar_Lander> xD!
[23:16] <imrcly> and or sobbing
[23:16] <NigeyS> lol yush
[23:16] <Lunar_Lander> yeah I don't wanna wreck it on the ground
[23:16] <Lunar_Lander> yeah I think it would be very loud in my room here if it frie
[23:16] <Lunar_Lander> fries
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[23:19] <NigeyS> morning juxta
[23:19] <juxta> hi NigeyS
[23:20] <NigeyS> how's you ?
[23:21] <jcoxon> eek i've got a little mad
[23:21] <NigeyS> white coat mad ?
[23:21] <jcoxon> i'm converting dd.dddd to dddmm.mmm
[23:21] <jcoxon> (longitude)
[23:22] <NigeyS> eek
[23:22] <jcoxon> so -75.2361679077148 ->
[23:22] <jcoxon> deg = -75 mins = 14.17007
[23:22] <jcoxon> how do i combine this to = dddmm.mm
[23:23] <SpeedEvil> mm.mmm /60
[23:25] <jcoxon> thats the wrong way round
[23:25] <fsphil> -07514.17007
[23:25] <fsphil> yea it's silly
[23:26] <jcoxon> okay
[23:26] <jcoxon> so i need to pad deg and mins to keep them in that format
[23:27] <fsphil> yea
[23:27] <fsphil> the longitude is the same, but only two digits for the degrees
[23:27] <jcoxon> other way :-)
[23:27] <fsphil> latitude
[23:27] <fsphil> your madness is catching :p
[23:27] <fsphil> it's an odd format
[23:27] <fsphil> caught me out when I first seen a line from wb8elk
[23:28] <fsphil> or it could be the solder fumes :)
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[23:32] <juxta> NigeyS, all good here!
[23:32] <NigeyS> :D gdgd
[23:33] <Lunar_Lander> so
[23:33] <Lunar_Lander> I just wrote that down, the parallel connection of the power
[23:35] <russss> sounds like they're not going to do the Soyuz ISS flyaround :/
[23:36] <natrium42> bah
[23:36] <russss> http://forum.nasaspaceflight.com/index.php?topic=24088.msg700144#msg700144
[23:37] <Lunar_Lander> thanks imrcly and NigeyS
[23:38] <WhiteStarMC-174> natrium42, this is tyler from white star. i was told to contact you by dan
[23:38] <jcoxon> how do you pad a float with sprintf?
[23:39] <russss> %0.3f
[23:39] <imrcly> this is no longer #highaltitude it is now #whitestar
[23:39] <russss> wait, that's silly.
[23:39] <russss> %3.3f
[23:39] <fsphil> %03.3
[23:39] <fsphil> f
[23:39] <russss> that's the one
[23:39] <natrium42> WhiteStarMC-174 --> PM
[23:40] <jcoxon> russss, $lonminutes1 = sprintf("%03.3f", $lonminutes);
[23:40] <jcoxon> doesn't seem to work
[23:40] <russss> I think I was right the first time actually
[23:40] <russss> %3.3f should space-pad it
[23:40] <jcoxon> oh i want 0 padding
[23:40] <fsphil> what's that line outputting?
[23:41] <jcoxon> 1.417
[23:41] <russss> hmm, %03.3f should work for that in PHP
[23:41] <jcoxon> perl
[23:41] <fsphil> I wonder if it's being converting it back to a float
[23:41] <fsphil> -it
[23:41] <russss> yargh
[23:42] <russss> I dunno. Too late for this
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[23:43] <NigeyS> nn russss
[23:45] <fsphil> I don't know perl much at all -- maybe the conversion is working, but it's how it's being printed?
[23:46] <jcoxon> i've got it working
[23:46] <jcoxon> badly
[23:46] <jcoxon> if(int($lonminutes < 10)){
[23:46] <jcoxon> $lonminutes = "0$lonminutes";
[23:46] <jcoxon> }
[23:46] <fsphil> hehe
[00:00] --- Tue Mar 1 2011