highaltitude.log.20120118

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[09:31] <SamSilver> http://img.chan4chan.com/img/2010-01-21/1264091696019.jpg
[09:31] <Laurenceb_> 4chan
[09:31] <Laurenceb_> better be sfw
[09:31] <Laurenceb_> very good
[09:31] <Laurenceb_> the internet is on strike :(
[09:33] <SamSilver> here the sun is out and it a balmy 31 deg c and the internets is pumping fast
[09:33] <SamSilver> air-con is working
[09:33] <SamSilver> http://img.chan4chan.com/img/2010-08-12/Microsoft-1978-788545.jpg
[09:34] <SamSilver> is Bill bottom left?
[09:34] <SamSilver> yey ... must be
[09:35] <Laurenceb_> looks like a sort of dodgy hippy convention
[09:35] <Laurenceb_> with some of their dealers thrown in as well
[09:36] <costyn> SamSilver: yes that is Bill bottom left
[09:36] <SamSilver> lol
[09:36] <costyn> SamSilver: http://www.seviourbooks.com/images/founders_of_microsoft_with_caption.jpg
[09:37] <SamSilver> costyn: thanx - i would have kept my money in my pocket
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[09:42] <costyn> SamSilver: hehe
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[09:55] <fsphil> 4chan: Block reason: Forbidden Category "Adult/Mature Content"
[09:55] <fsphil> mature? 4chan?
[09:56] <zyp> more like manure content
[09:59] <Laurenceb_> hahaha
[09:59] <Laurenceb_> http://www.youtube.com/watch?v=BKE4HRsMBVE
[10:02] <costyn> hehe
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[10:05] <earthshine> o/
[10:13] <fsphil> hiya earthshine
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[10:13] <earthshine> Hey
[10:37] <daveake> http://bit.ly/zXa7Ry
[10:39] <fsphil> "Keep Calm and Find A Boat"
[10:39] <daveake> Yes, that's more likely :)
[10:40] <daveake> Get some made for the next annual meeting :)
[10:40] <daveake> (mugs, I mean)
[10:41] <fsphil> "Keep Calm, Those Powerlines Are Further Than You Think"
[10:44] <daveake> "Keep calm, we have a receiver in Poland now"
[10:45] <fsphil> haha
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[11:01] <number10> T- 9 days, 21 hours, 58 minutes, 22 seconds
[11:02] <fsphil> gone for auto sequence start yet?
[11:03] <number10> that is for daveake cloud 3 - I think my timer would be set to years
[11:04] <daveake> :-). No not yet!
[11:05] <number10> mind you I could make some progress now ham exams are out of the way - unless I go for full :(
[11:05] <fsphil> dooo iiit
[11:05] <fsphil> got a callsign yet?
[11:06] <number10> I would like to - just having a brouse throgh adavanced book to see - no call sign yet - did exams last night have to wait I think a couple of days untill they get results posted
[11:07] <fsphil> guessing you passed them both then?
[11:07] <number10> yes :)
[11:08] <fsphil> nice, congrats :)
[11:08] <number10> cheers fsphil
[11:08] <daveake> Well done!
[11:08] <number10> ta
[11:08] <number10> you should do it daveake
[11:09] <daveake> I have thought about that
[11:09] <number10> I was not too sure bought though that when I get a bit older it would be more of a hurdle
[11:10] <daveake> Like I said before, was going to do it when a teenager (yes that was after the invention of radio...) but chose not to because of the morse code requirement for the full licence
[11:10] <number10> bought?? see I am cracking up
[11:10] <Darkside> evening all
[11:10] <daveake> morning ... how did the flight go?
[11:10] <Darkside> i met the guy that got rid of the morse requirement for ham licenses :D
[11:10] <Darkside> good
[11:10] <number10> you shuld do the foundation and int - fairly easily with your backround daveake
[11:10] <number10> evening Darkside
[11:11] <daveake> ok where should I go to find out about doing it
[11:12] <number10> local clubs http://www.rsgb.org/local/ - or try to find a place that allows you to just take exam and practicals
[11:12] <daveake> tvm
[11:14] <number10> books are here http://www.rsgbshop.org/acatalog/Online_Catalogue_Training_19.html
[11:14] <daveake> Ta
[11:15] <daveake> We have a radio ham in the village - Geoff Grayer who's written books on the subject :)
[11:15] <number10> thats handy
[11:15] <daveake> Must try again to get him to help track my payloads :)
[11:16] <daveake> I showed him what I was doing before my first flight. He said "You didn't need to buy an aerials - I've got a garage full of them!"
[11:16] <number10> its good that some french guys were goin to join in tracking jcoxons last pico
[11:16] <number10> did you buy that telescopic mast?
[11:16] <daveake> Yes, shame that didn't work out. Hopefully all sorted for his next flight
[11:17] <daveake> No, not yet .....
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[13:58] <daveake> Bought some polystyrene glue on ebay ... from someone called "Mr Sticky" :/
[13:58] <Upu> Oh I think I bought some off Mr Sticky too :)
[13:58] <Upu> UHU Por ?
[13:58] <daveake> yep
[13:59] <daveake> UHU for UPU
[13:59] <UpuWork> heh
[14:03] <number10> steve is missing a trick here - I bet he can source some cheap
[14:03] <Laurenceb> gorilla glue works
[14:04] <Laurenceb> screwfix sell it iirc
[14:06] <daveake> Yeah, he could do DS18B20's, nicrhome, lots of stuff.
[14:07] <daveake> Possible cheap HAB camera ... http://tinyurl.com/6rzzxgv
[14:08] <daveake> Not sure I'd takle the risk though :)
[14:08] <number10> looks like its been on a HAB previously - one with a dodgey chute
[14:09] <daveake> :D
[14:09] <number10> what vid have you got in cloud3?
[14:09] <daveake> Zx1
[14:09] <daveake> (Kodak). Same as in Cloud 1and 2. Well not the exact same one of course :D. £25-ish on ebay.
[14:10] <number10> thats pretty good price
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[14:12] <Laurenceb> i was thinking you could use USB OTG on stm32 to grab jpegs off a camera
[14:12] <Laurenceb> is there a common usb camera control standard of any sort?
[14:12] <zyp> PTP
[14:12] Action: Laurenceb googles
[14:13] <Laurenceb> http://www.circuitsathome.com/ptpusb-control-camera-data
[14:13] <Laurenceb> wow
[14:15] <Laurenceb> http://www.circuitsathome.com/category/camera-control
[14:17] <fsphil> uvc is a usb camera standard
[14:17] <fsphil> for webcams
[14:17] <fsphil> might not be what you mean
[14:18] <Laurenceb> han
[14:18] <Laurenceb> i was thinking usb control with thumbnails saved as jpeg
[14:19] <Laurenceb> problem is youd then was to use mass storage to grab the jpegs
[14:19] <Laurenceb> any you cant use mass storage at the same time.. ?
[14:19] <Laurenceb> - for image preview downlink over the radio
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[14:21] <Laurenceb> http://www.sparkfun.com/products/9628... wtf
[14:25] <fsphil> Tim managed to get jpegs from a canon camera via usb
[14:25] <fsphil> using gphoto2
[14:26] <fsphil> until the payload died anyway
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[14:27] <eroomde> Laurenceb: yo
[14:27] <eroomde> just bought an F4 discovery board
[14:27] <Laurenceb> :P
[14:28] <eroomde> built the toolchain last night at your suggestion with summon (patched for hard floating point) and texane
[14:28] <eroomde> i had a look at the spec and am annoyed I didn't early - it looks amazing
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[14:28] <eroomde> like
[14:28] <eroomde> astonishing
[14:28] <Laurenceb> im actually using codesourcery g++
[14:28] <eroomde> uhuh
[14:28] <eroomde> that was my other oeption
[14:28] <Laurenceb> but yeah its practically identical
[14:28] <eroomde> i've no idea why one over the other really. as longas it works
[14:28] <Laurenceb> slightly smoother install
[14:29] <Laurenceb> ive only played with the F4 and benchmarked it so far
[14:29] <Laurenceb> might use it on a new autopilot
[14:29] <eroomde> it would be pretty slick for an autopilot
[14:29] <eroomde> i want a datalogger
[14:29] <Laurenceb> tho its a little overpowered for kalman filters (never thought id say that)
[14:30] <Laurenceb> you could kalman at 10khz
[14:30] <eroomde> several ADC channvels at several kHz -> ethernet
[14:30] <eroomde> that'll be project one
[14:30] <Laurenceb> ive made an F1 mass storage logger with uSD
[14:30] <eroomde> well, you can just have huge state matrices
[14:30] <Laurenceb> true - 10khz with 16 component
[14:31] <Laurenceb> pos,vel,quaternion, gyro and accel bias
[14:31] <Laurenceb> https://github.com/Laurenceb/STM32-Logger <- i made that for general remote datalogging
[14:35] <BrainDamage> eroomde: I suggest you use karlp's version instead of texane
[14:35] <BrainDamage> it's generally much more stable since texane tends to merge all sort of patches and some functionality regularry breaks
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[14:36] <cuddykid> who is/are the person/people in main charge of UKHAS wiki? - Was just wondering if it is ok to create a section for work on a high altitude glider using arudpilot stuff. There are about 5 to 10 of us on the diydrones forum working on the same thing and we need a place to work collaboratively! Would only be a few pages and would benefit whole community :D
[14:36] <Laurenceb> eroomde: ##stm32 is where its at
[14:36] <Laurenceb> jcoxon mainly
[14:37] <cuddykid> thought so - I'll run it past him, Upu, eroomde, fsphil :) ^^
[14:37] <Laurenceb> you guys all working on gliders then?
[14:37] <eroomde> BrainDamage: does karp's suppost hard float?
[14:38] <UpuWork> cuddykid as long as its related to high altitude and will benefit people go for it
[14:38] <Laurenceb> *cough* openpilot
[14:38] <cuddykid> yeah, all trying to modify ardupilot - some people seem to have a fair amount of experience
[14:38] <UpuWork> if you start advertising "fireworks" "holidays in thailand" etc I'll remove you :)
[14:38] <cuddykid> UpuWork: lol
[14:39] <cuddykid> yeah, should benefit anyone who wants to look into glider stuff in the future
[14:39] <cuddykid> e.g. someone has broken down the whole workings of arudpilot into a nice flow diagram which is neat
[14:39] <UpuWork> am I suppose to shut the Wiki down today to support SOPA or something ?
[14:39] <cuddykid> lol
[14:40] <cuddykid> against SOPA UpuWork ;)
[14:40] <UpuWork> oh yeah thats it
[14:40] <NigelMoby> lol
[14:41] <Laurenceb> i think SOPA is backwards
[14:41] <Laurenceb> geddit??
[14:44] Nick change: UpuWork -> Tumbleweeds
[14:44] Action: Tumbleweeds ......................
[14:44] Nick change: Tumbleweeds -> UpuWork
[14:44] <cuddykid> lol
[14:45] <Laurenceb> SOPA->APOS
[14:45] <cuddykid> what's APOS?
[14:46] <Laurenceb> a pile of sh*t
[14:47] <cuddykid> got it :P lol
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[14:48] <Laurenceb> http://www.st.com/internet/evalboard/product/252689.jsp?wt.mc_id=enews_jan12_steval-mki119v1
[15:03] <SpeedEvil> Aha
[15:03] <SpeedEvil> You got the email too
[15:03] <SpeedEvil> I was about to link
[15:04] <SpeedEvil> oh
[15:04] <SpeedEvil> wrong one
[15:04] <SpeedEvil> http://www.st.com/internet/analog/product/252443.jsp?wt.mc_id=enews_jan12_l3gd20
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[17:02] <daveake> Woohoo cloud3 is sending me texts now :)
[17:02] <daveake> and PDU is a PITA
[17:02] <number10> great stuff. will you enable that below certain alt
[17:03] <daveake> Yes, and stop after it's landed
[17:03] <daveake> All on the way down only, of course!
[17:03] <gonzo_> do the texts include things like 'lol' ?
[17:04] <daveake> Don't want it telling me where it is before launch :)
[17:04] <daveake> Right now it's just "This is a message from CLOUD3: Hello Dave!"
[17:04] <daveake> I'll replace that with the usual radio string
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[17:12] <cuddykid> daveake: nice
[17:14] <daveake> It's on old phone with a 3.3V-compatible serial port in the charge/PC connector
[17:14] <daveake> So it wires to a 3.3V Arduino straight thru, no components needed at all
[17:15] <daveake> Problem is it uses "PDU" mode for SMS, and that's just horrible
[17:17] <daveake> Does anyone know how high GSM usually works to? 2km? 5km?
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[17:17] <cuddykid> daveake: I think ~2km
[17:17] <daveake> ta
[17:18] <cuddykid> I was texting my back up tracker frantically when most lost signal lol - just incase the signal suddenly went!
[17:18] <number10> I heard 5km somewhere but cant remember where
[17:20] <daveake> Yeah, I think I've heard both figures myself. Assuming 2km then at 5m/s descent there's a window of about 6 minutes before it lands. I'll probably set it to transmit every 30 seconds so it should get a few "in-flight" ones in.
[17:20] <cuddykid> that's annoying - I must have deleted the texts on my phone received
[17:21] <cuddykid> If you just text it ~5km then when it gets signal again it should text back
[17:21] <number10> I had not seen this before http://ukhas.org.uk/code:uk_polygon
[17:21] <cuddykid> just get one of the £5 unlimited texts cards and bombard it :P
[17:21] <cuddykid> perfect! That's a better implementation than mine :D
[17:22] <cuddykid> I was looking for that the other day
[17:22] <cuddykid> thanks number10
[17:22] <daveake> cuddykid I did use an SMS tracker before, and that texted back after I called it. Yes I did the frantic calling thing too (on that flight the UHF aerial broke).
[17:22] <cuddykid> lol
[17:22] <number10> It would be good to have some sort of index ion ukhas
[17:22] <daveake> This time the flight computer will send the texts automatically according to whatever logic I come up with
[17:22] <cuddykid> agree
[17:26] <navrac_> phew just desoldered a ncp1402 5v and replaced it with a 3v3 . I really hate tiny bloody smd chips
[17:26] <number10> Logic is the beginning of wisdom, Valeris, not the end
[17:27] <daveake> You have not experienced Shakespeare until you've read it in the original Klingon
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[17:40] <cuddykid> every day the next launch gets a tiny bit closer :D
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[17:41] <daveake> Ooer, a text with real GPS data in it :-)
[17:41] <daveake> Now I know where I am
[17:41] <cuddykid> :D
[17:41] <Lando-Uni> daveake: Made with REAL cheese?!
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[17:43] <cuddykid> ergh, got 2 exams over the next 2 days
[17:43] <cuddykid> then comp systems architecture exam - the only one that should be quite good!
[17:43] <cuddykid> & on a relative scale that is lol
[17:46] <number10> what Uni are you at cuddykid
[17:46] <cuddykid> number10: nottingham (not trent)
[17:47] <number10> going well?
[17:47] <cuddykid> yeah thanks :)
[17:47] <number10> good
[17:49] <Lando-Uni> cuddykid: You gonna get raped!
[17:49] <cuddykid> Lando-Uni: you what?!?
[17:49] <Lando-Uni> cuddykid: I really liked the Durham University when I visited it.
[17:49] <cuddykid> Lando-Uni: I'm guessing you're at uni? - which one?
[17:49] <cuddykid> never visited Durham
[17:49] <Lando-Uni> cuddykid: Michigan State University, College of Veterinary Medicine
[17:50] <cuddykid> oh nice :P
[17:50] <Lando-Uni> Yeah, I'm s00p3r schmart!
[17:51] <cuddykid> Lando-Uni: I've been keeping up with your GOP nominee stuff - far more interesting than our politics! - I hope you're a Ron Paul supporter!! :P
[17:51] <Lando-Uni> lol, no.
[17:51] <cuddykid> :O
[17:51] <cuddykid> lol
[17:51] <Lando-Uni> I don't care about politics.
[17:51] <Lando-Uni> Obama is the lesser of two evils.
[17:51] <cuddykid> I suppose this is #highaltitude haha
[17:52] <Lando-Uni> Well, the lesser of many evils.
[17:54] <cuddykid> lol ->
[17:54] <cuddykid> http://www.bbc.co.uk/news/uk-scotland-north-east-orkney-shetland-16612148
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[18:13] <gonzo_> anyone read this month's RadCom yet?
[18:13] <gonzo_> pp34, there is a bit on direct IQ modulation
[18:14] <gonzo_> and there is mention of 434mhz RTTY, which is directly aimed at HAB users
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[19:02] <fsphil> not read it yet, but I imagine we can't use it anyway
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[19:29] <Dan-K2VOL> hola all
[19:29] <eroomde> hola Dan-K2VOL
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[20:00] <Lunar_Lander> hello
[20:01] <SpeedEvil> hi
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[21:01] <Raul_> Hi daveake
[21:02] <daveake_> Hiya
[21:03] <daveake_> How was the flight?
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[21:03] <Lunar_Lander> hey Raul_
[21:03] <Raul_> Hey, I was just writing you an email LL
[21:03] <Lunar_Lander> cool
[21:03] <Lunar_Lander> :)
[21:03] <Raul_> I got some pics dave:)
[21:04] <daveake_> cool.#
[21:04] <Raul_> http://www.flickr.com/photos/67036811@N08/6702026873/in/photostream/ here you go, video is on it's way
[21:04] <Raul_> Dave do you own randomsolutions HAB supplies?
[21:05] <Lunar_Lander> Raul_: RocketBoy does
[21:05] <daveake_> Nowt to do with me :)
[21:05] <Raul_> ahh, I'm buying a 2000g howyee soon, another launch from Germany it seems
[21:05] <Lunar_Lander> cool!
[21:05] <Raul_> this time for a popular beer brand
[21:05] <Lunar_Lander> YAY
[21:05] <Lunar_Lander> :)
[21:06] <Raul_> I apollogise for not shipping your equipment yet LL, this week has been a blend of school-work-work-work-sleep
[21:06] <Lunar_Lander> btw Raul_ is that the Buran they have in Speyer?
[21:06] <Lunar_Lander> no problem?
[21:06] <Lunar_Lander> I mean in the flickr
[21:06] <Raul_> I'm on the edge of several huge things
[21:06] <Lunar_Lander> yea
[21:07] <Raul_> Yes, entrance is 14 euro's but it's worth it!
[21:07] <Lunar_Lander> cool!
[21:08] <Raul_> right now I'm looking at two 30k USD each rocketry projects:)
[21:09] <Raul_> How is that hotel you staied at called LL?
[21:09] <Raul_> BTW, total range on recovery was 250km SE
[21:10] <Raul_> the CUSF burst calculator dosen't work for 2000g howyee for some reason
[21:12] <Lunar_Lander> yea
[21:12] <Lunar_Lander> Raul_: it was called "Zum Lamm"
[21:13] <Raul_> Lauda is really good for launching HAB, smack in the middle of Germany! :)
[21:13] <Raul_> thx LL
[21:14] <Lunar_Lander> you're welcome
[21:14] <Lunar_Lander> :) yeah it's cool that it worked :)
[21:15] <Raul_> it landed in the middle of nowhere
[21:15] <Lunar_Lander> yea
[21:15] <Raul_> guessing lamm means sheep
[21:16] <Lunar_Lander> yes, a young sheep
[21:16] <Raul_> like lamb
[21:16] <Lunar_Lander> yeah
[21:16] <Lunar_Lander> :)
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[21:25] <Lunar_Lander> when will flight 2 be Raul_?
[21:26] <Raul_> yes, for a popular beer brand, under contract
[21:26] <Raul_> same stuff but a bigger balloon and more video cameras
[21:27] <Lunar_Lander> cool!
[21:29] <Raul_> was the Zum Lamm ok?
[21:30] <Lunar_Lander> yes
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[21:31] <Raul_> what was the pricing per day? can you also skip brekfast and save some money?
[21:33] <Lunar_Lander> yes
[21:33] <Raul_> ahh, now I see the pricing on their website, 50 eur/room/day?
[21:34] <Lunar_Lander> for a single room it was 35 eur IIRC
[21:34] <Raul_> with breakfast?
[21:35] <Lunar_Lander> breakfast was an extra 4 euro per day
[21:35] <Raul_> I hope they soon stock 2000g balloons on randomsolutions uk
[21:35] <eroomde> Raul_: have you emailed to ask?
[21:36] <Raul_> not yet, will do so soon
[21:42] <Laurenceb_> eroomde: i hate stm32
[21:42] <eroomde> lol
[21:42] <eroomde> go on
[21:42] <Laurenceb_> spent three days on stupid i2c
[21:42] <Laurenceb_> still wont work
[21:42] <eroomde> i2c sucks
[21:42] <Laurenceb_> F1 datasheet method2, i bet nonone can make it work with interrupts :P
[21:43] <Laurenceb_> i certainly cant
[21:43] <Laurenceb_> closest i can get is every other byte usually reads 0x00 or 0xff
[21:45] <Laurenceb_> now when i program repeated start i get repeated start, stop, hardware locks up
[21:45] <eroomde> gdb tell you anything?
[21:46] <Laurenceb_> not really - its like the peripheral goes dead
[21:46] <Laurenceb_> but this is covered by the errata - start stop requires ABP peripheral reset to recover from
[21:47] <Laurenceb_> the question is why does it do it in the first place... increasing the speed to 400Khz and the issue goes, but it still doesnt work correctly
[21:48] <Laurenceb_> you have an F1 discovery?
[21:50] <Laurenceb_> nvm ill probably grab a board and get a mockup running with some eeprom or something tomorrow
[21:51] <eroomde> i do have one yes
[21:52] <Laurenceb_> http://pastie.org/3209699 present code - untested as i dont have scope handy at home
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[21:52] <Laurenceb_> yes line 57 to 60 is stupid :P
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[22:22] <Lunar_Lander> wb daveake_
[22:25] <daveake_> evening
[22:25] <daveake_> Just re-cutting some polystyrene for a neater job
[22:25] <Lunar_Lander> cool
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[22:27] <Laurenceb_> https://github.com/leaflabs/libmaple/blob/master/libmaple/i2c.c#L229
[22:27] <Laurenceb_> ah... wonderfull
[22:29] <Lunar_Lander> hello jcoxon
[22:29] <jcoxon> hey
[22:30] <Lunar_Lander> how is the life?
[22:30] <jcoxon> not bad
[22:30] <jcoxon> just finished on call
[22:31] <Lunar_Lander> yea
[22:32] <Lunar_Lander> sounds good
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[23:04] <Lunar_Lander> hi andrew_apex
[23:04] <andrew_apex> evening Lunar_Lander
[23:04] <Lunar_Lander> how are you?
[23:05] <andrew_apex> not too bad thanks - uni exams atm...
[23:08] <Lunar_Lander> yeah
[23:08] <natrium> hey
[23:08] <natrium> when's next launch>
[23:08] <natrium> ?
[23:08] <Lunar_Lander> these are coming up here too
[23:08] Nick change: natrium -> natrium42
[23:09] <Lunar_Lander> yea how is Apex III progressing?
[23:09] <andrew_apex> slowly - but fingers crossed it'll be ready for the target laucnh date of 18th feb
[23:09] <andrew_apex> the core board is being made at itead (was sent off a few weeks ago)
[23:10] <Lunar_Lander> yeah
[23:10] <andrew_apex> however due to chinese new year itead can't do the modules in time, so they're being done in the uk
[23:10] <Lunar_Lander> yea
[23:10] <Lunar_Lander> do you have the gamma-photon detectors you wanted to include instead of the geigers?
[23:11] <andrew_apex> i'm no longer the one working on that module :P - we're certainly planning to send it up, but whether it'll be done in time is another question...
[23:12] <andrew_apex> the person doing it hasn't got any experience with SMD/analogue electronics
[23:12] <Lunar_Lander> oh
[23:12] <Lunar_Lander> how comes?
[23:13] <andrew_apex> i'm no longer at the school that's running the project - and as this ones being entered into a schools competition, I'm just technical support/advice/driver/tracker :P
[23:14] <andrew_apex> (offically :D)
[23:14] <Lunar_Lander> xD!
[23:15] <andrew_apex> are you currently working on a payload?
[23:15] <Lunar_Lander> yeah, tomorrow I'll finally garden test the GPS
[23:15] <andrew_apex> exciting :D
[23:16] <Darkside> woo
[23:16] <andrew_apex> when do you expect to launcg it?
[23:16] <Darkside> we made gizmodo
[23:16] <Darkside> http://www.gizmodo.com.au/2012/01/awesome-high-altitude-balloon-launch-at-linux-conf-au-in-ballarat/
[23:16] <Lunar_Lander> march maybe
[23:16] <andrew_apex> I'll be very interested to hear how it goes!
[23:17] <Lunar_Lander> yeah :)
[23:23] <daveake_> Nice Darkside
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[23:29] <fsphil> gonzo___, just read that article. sounds like it was directed directly at us :)
[23:30] <fsphil> wrong about using it as a license exempt device, it would need certified iirc
[23:33] <eroomde> fsphil: can you explain what was said for those of us w/o radcom?
[23:34] <Lunar_Lander> this device is interesting
[23:34] <Lunar_Lander> wait
[23:34] <Lunar_Lander> http://www.esrl.noaa.gov/gmd/ccgg/aircraft/aircore.html
[23:40] <fsphil> eroomde, the bit was talking about generating RTTY with an I/Q modulator. "... This will generate a much more stable and reliable narrow FSK signal than could be formed by reducing drive to an off-the shelf license free module, or by wobbling a varicap across a crystal."
[23:40] <fsphil> mentioned doing FSK in 434mhz
[23:40] <eroomde> ah
[23:40] <eroomde> interesting
[23:40] <fsphil> seems to refer to the way we drive the NTX2
[23:41] <eroomde> though I think via a vco, which therefore has phase continuitity, gives you the greatest narrowness potential
[23:41] <jcoxon> hey eroomde and fsphil
[23:41] <eroomde> yo
[23:43] <fsphil> evnin
[23:43] <Lunar_Lander> Darkside: the music in the tux flight video is cool
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[23:47] <Lunar_Lander> hi juxta
[23:47] <Lunar_Lander> and hi fsphil eroomde
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[23:53] <fsphil> hiya Lunar_Lander
[23:54] Action: fsphil is away to bed. nite!
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[23:56] <Lunar_Lander> gn8
[00:00] --- Thu Jan 19 2012