highaltitude.log.20121217

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[03:59] <KT5TK> How about using GPIO 4 on the RasPi for a tracker transmitter? http://www.icrobotics.co.uk/wiki/index.php/Turning_the_Raspberry_Pi_Into_an_FM_Transmitter
[04:00] <Darkside> or not
[04:00] <Darkside> A) not much power
[04:00] <Darkside> B) harmonics
[04:01] <Darkside> hmm maybe more power than i thought
[04:01] <Darkside> still, not a good idea
[04:03] <KT5TK> Follow it up with a RF6886 and a LPF
[04:04] <Darkside> it won't have the frequency resolution we need though
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[04:20] <KT5TK> They're dividing the 500MHz clock by a 4 digit hex number. So 0x5000 corresponds to 100 MHz and 0x50CF is 99 MHz in their example. This makes 4.83 kHz resolution for one digit.
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[04:21] <KT5TK> certainly not very fine
[04:22] <KT5TK> maybe read the manual for some possible fine resolution option
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[04:42] <Upu> yawn is it morning yet ?
[04:47] <SpeedEvil> my clock is broken
[04:47] <SpeedEvil> I woke up at 3pm
[04:48] <Upu> mine definetely is
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[05:26] <SpeedEvil> http://www.ebay.co.uk/sch/Business-Office-Industrial-/12576/i.html?item=170846277331&_sac=1&ssPageName=STRK%3AMEWAX%3AIT&_ssn=sinedy
[05:27] <SpeedEvil> random cheap shit
[05:27] <SpeedEvil> dds module £3.69 shipped
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[05:44] <Darkside> sheeeit
[05:44] <Darkside> thats cheap
[05:44] <Darkside> those AD9850s cost like $15 in small quantities
[05:45] <Darkside> might use one of those modules in a VFO i'm planning on using
[05:45] <Darkside> hell of a lot cheaper than using an AD9835 breakout from sparkfun
[05:49] <SpeedEvil> indeed
[05:49] <SpeedEvil> the little meters and a button are almost ideal for huge amounts of stuff
[05:50] <SpeedEvil> dc-dc at a pound
[05:50] <SpeedEvil> lm2596
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[05:53] <SpeedEvil> insane
[05:53] <SpeedEvil> go to the Ti website, and trhag's cheaper than the 1k price Ti mentions
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[07:50] <nosebleedkt> hi all
[07:50] <number10> hello
[07:57] <costyn> SpeedEvil: lol @ Auto Flame Skull Darkening Mig Tig Solar Welding Grinding Helmet Welder Mask (on that ebay page)... that description
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[08:04] <SpeedEvil> :-)
[08:05] <costyn> it is very random...lots of electronics, and then a rabbit water dispenser.. wtf
[08:05] <costyn> USB ISP for 2.63?
[08:05] <SpeedEvil> http://www.ebay.co.uk/sch/Business-Office-Industrial-/12576/i.html?item=170846277331&_sac=1&ssPageName=STRK%3AMEWAX%3AIT&_ssn=sinedy for those just joining. random electronics
[08:09] <costyn> 2 in 1 Wall Mount Automatic Inductive Voice Control Operated light lamp Switch ... wat?
[08:09] <costyn> you shout at it and it turns on?
[08:10] <costyn> beautiful engrish: Being designed with Boeing plane three-dimension software, made of US General Electric PC (Polycarbonate), and equipped with Japan PR sensor to detect the moving status of human body. This unit will turn on the load automatically when human body enter the inductive range, and delay to turn off automatically when the human move out of the scope. With the feature of energy saving, non-contact, non-spark, long application life, s
[08:13] <SpeedEvil> PIR
[08:13] <SpeedEvil> at a guess
[08:13] <costyn> likely, so neither inductive nor voice controlled hehe
[08:15] <SpeedEvil> I have reservations about connecting any sort of this stuff to the mains
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[08:17] <costyn> but it's designed with Boeing plane three-dimenion software!
[08:23] <staylo> aw, no-welding solderless breadboards. I don't get to use the skull mask.
[08:23] <costyn> Pic unrelated http://www.ebay.co.uk/itm/USB-Ethernet-WiFi-Express-Wireless-Router-Adapter-Air-iPad-iPhone-MacBook-/170887608823?pt=UK_Computing_NetworkCards_RL&hash=item27c9b1f9f7 but why would you want a wireless adapter for your iphone/ipad??
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[08:39] <SpeedEvil> I don't think that's WiFi
[08:39] <SpeedEvil> just Ethernet
[08:41] <gonzo___> people seem to pepper the word (mis-abreviation) about randomly these days. Was looking for 2.4gig wireless cams and kept getting wired cams described as wireless
[08:41] <gonzo___> and wifi
[08:42] <lz1dev> just put all words
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[08:43] <costyn> SpeedEvil: certainly, this is a standard usb ethernet adapter that looks very similar to the one you get with macbook airs. but in this case either the picture is wrong, or the description
[08:43] <lz1dev> perhaps it has a wifi as well as wlan
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[08:45] <costyn> could you fit a wifi antenna in that form factor? i doubt it
[08:49] <eroomde> one of my favourite things: searching for something on dx.com that they don't have, and getting the results page saying 'we don't have this but why not have alook at all our popular things?'
[08:49] <eroomde> so many shinies
[08:56] <eroomde> http://dx.com/p/nano-v3-0-avr-atmega328-p-20au-module-board-usb-cable-for-arduino-118037
[08:56] <eroomde> cheapo
[08:59] <fsphil> nooo I can't go to dx.com without buying something
[08:59] <costyn> eroomde: nice
[08:59] <costyn> fsphil: it's not exactly instant gratification if it takes 4 weeks to get toyou :)
[09:00] <costyn> at least sthat's my experience
[09:00] <eroomde> i quite like that aspect
[09:00] <eroomde> you forget you ordered it
[09:00] <costyn> yea true :)
[09:00] <eroomde> they also have cheap flashguns
[09:00] <costyn> they have an EU depot these days, not much choice compared the chinese one
[09:00] <eroomde> might get a few of those
[09:00] <eroomde> we want to put together one of those diy lightboxes
[09:00] <costyn> http://dx.com/direct/eu
[09:00] <eroomde> as we often have to do autopsies on rocket bits
[09:01] <eroomde> and want really good macro photography
[09:02] <eroomde> and lighting is a big issue
[09:03] <costyn> heh... the little robot santa in the upper left is dancing gangnam style on dx.com
[09:05] <Darkside> hmm
[09:05] <Darkside> anyone have any good filter design calculators?
[09:05] <eroomde> Darkside: white kind of filter?
[09:05] <UpuWork> seconding that request
[09:05] <eroomde> rf or normal f?
[09:05] <Darkside> tryin gto do a low pass chebyshev with impedance matching
[09:05] <Darkside> 14 ohms to 50 ohms
[09:05] <Darkside> and of course none of the prototype values help with that
[09:06] <eroomde> see my q. it's a big topic :)
[09:06] <Darkside> RF
[09:06] <Darkside> in particular, HF
[09:06] <eroomde> ah yes it's easy
[09:06] <Darkside> oh good
[09:06] <Darkside> tell me how
[09:06] <Darkside> or give me links to good references
[09:06] <eroomde> you just put some sympathising strips of coper on your pcb substrate
[09:06] <eroomde> like
[09:06] <eroomde> this
[09:07] <Darkside> yep
[09:07] <eroomde> | ' , | -- \ ----
[09:07] <eroomde> easy
[09:07] <Darkside> great
[09:07] <eroomde> [ouring the blood of a freshly slaughtered bat also helps the Q
[09:07] <eroomde> pouring*
[09:07] <Darkside> wonderful
[09:07] <Darkside> so no help then?
[09:07] <eroomde> I assume it's for pcb mounting yeah?
[09:08] <Darkside> at HF, it'll be hand-wound toroidial inductorss, etc
[09:08] <Darkside> i've already made a 7th order 0.1dB ripple low pass
[09:08] <Darkside> but i neglected the impedance matching
[09:08] <Darkside> and it doesn't quite have the response i expected (no surprises there)
[09:09] <Darkside> eroomde: http://imgur.com/a/YfW0z
[09:09] <eroomde> well, i'm afriad it's not a field i know much about at all. i'll have a look in the Shelves of Knowledge at work
[09:09] <Darkside> heh
[09:09] <Darkside> i know chebyshev designs are a pain
[09:10] <Darkside> i'd just rather not have to do the design from scratch
[09:10] <Darkside> tbh a 7th order butterworth would probably do the job
[09:11] <costyn> SpeedEvil: good lord this is scary: http://www.ebay.co.uk/itm/High-Power-4Port-Long-Range-ADSL-Wireless-Wifi-Router-/170645639597?pt=UK_Computing_Wireless_Routers&hash=item27bb45d1ad
[09:11] <costyn> SpeedEvil: 500mW... that's illegal everywhere I believe
[09:12] <costyn> 500MW adjustable efficiency, 10 grades available, super buzzing signals.
[09:12] <costyn> I'm not sure I want my wireless router to buzz
[09:13] <Darkside> looooool
[09:14] <eroomde> Darkside: would an inline filter that matches the 14 ohm output impedence to a 50 ohm antenna do the job?
[09:15] <Darkside> well i was thinking of using a filter designed fo 13 ohms, and having a LC matching network at the end
[09:15] <eroomde> that could work
[09:15] <eroomde> but a 4:1 balun might also
[09:15] <Darkside> but i could get better rolloff if i do it properly
[09:15] <Darkside> nah, i'd prefer to have the filter do it
[09:15] <Darkside> and the filter should be able to do it
[09:16] <Darkside> its just a design problem
[09:16] <eroomde> ok, so this is an issue for a v2 rather than a fix for v1
[09:16] <Darkside> well, as it is, i have a working design for 7mhz
[09:16] <Darkside> i'd like to shift the operating frequency up to 10mhz if possible
[09:17] <Darkside> and that just means doing some complicated filter design
[09:17] <Darkside> i should have probably included the option of a balun
[09:17] <Darkside> maybe next version
[09:18] <Darkside> i'll just go through my filter design notes from undergrad and figre it out
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[10:01] <kokey> working from home
[10:01] <kokey> must resist the urge to have steak for breakfast
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[10:09] <zyp> what's wrong with steak for breakfast?
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[10:22] <fsphil> it's a bit heavy for a breakfast
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[10:40] <Laurenceb_> can anyone here help me with github?
[10:41] <Laurenceb_> im getting 403 error
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[10:46] <hibby> Laurenceb_: ssh keys?
[10:47] <Laurenceb_> its using https
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[10:51] <Laurenceb_> might be working now - grabbed latest git
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[11:06] <kokey> problem with having steak for breakfast is that I'll probably end up having steak for lunch
[11:06] <gonzo___> and the down side is???
[11:07] <mfa298> possibly no steak left for supper ?
[11:07] <fsphil> the steaks are high
[11:07] <eroomde> i am a big fan of the astronaut breakfast, which is still a tradition in advance of a hard day of field stuff, eg rockets or hab
[11:07] <eroomde> steak and scrabled egg
[11:08] <eroomde> lots of coffee
[11:08] <eroomde> and mushrooms
[11:08] <eroomde> keeps you going all day
[11:08] <kokey> that reminds me, to put the kettle on
[11:08] <kokey> I was on holiday back in South Africa recently
[11:08] <kokey> and we've had a barbecue for breakfast a few times
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[11:09] <gonzo___> that does sound a good idea! Have to remember that if we geta summer next year
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[11:11] <mfa298> gonzo___: or just do a traditional english BBQ (wellies and waterproof)
[11:13] <kokey> english bbq is strange
[11:13] <kokey> the style is certainly affected by the weather
[11:14] <mfa298> english summers dont tend contain much sun.
[11:14] <kokey> saffas, aussies and kiwis will bbq in rain, snow, or whatever
[11:14] <kokey> but the approach is different
[11:14] <kokey> and english bbq is basically a dinner party, but that 15 minutes you spend frying something in a pan is replaced by a grill outside
[11:15] <kokey> so people arrive, grab a drink, and you grill the meat and they sit down to eat
[11:15] <kokey> our idea of a bbq is that you show up there when you've just eaten
[11:15] <kokey> then you start to drink
[11:15] <kokey> then light the fire
[11:15] <kokey> then the fire burns out, and out add more stuff to it
[11:16] <kokey> oh, drink in between each step of that
[11:16] <kokey> anyway, it goes on for hours like that so you only eat a couple of hours later and in parts
[11:17] <kokey> and then you keep burning wood through the night if you can, for a bbq that started at 2pm
[11:17] <mfa298> most of the bbq's I've been to have been a cross between the two.
[11:18] <mfa298> people bring food to eat and then the eating and drinking continues for several hours
[11:18] <mfa298> not eating all the time - usually because the BBQ capacity is much smaller than the number of people.
[11:19] <kokey> yeah that sounds like it's in the spirit of things
[11:20] <mfa298> although that was an unusual one as the sun was out!
[11:21] <kokey> yeah I think the weather determines the way it goes really
[11:21] <kokey> if you're outdoors, and the sun is shining, or the weather is at least pleasant, then you just stay out
[11:22] <gonzo___> have done that too. A party with an open bbq
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[11:22] <gonzo___> the host just proviides the venue and the bbq fuel
[11:23] <gonzo___> though later on, the bbq runs on food that has fallen through and whatever the pyromaniacs (every bloke) has found to put on there
[11:24] <gonzo___> bits of fence, shoes, etc
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[11:30] <kokey> and the bbq runs on whatever can be found near the house that is made of wood
[11:31] <kokey> I have a bunch of hillbilly friends in South Africa who tends to build a bon fire, and then discover a car wreck around the farm yard and between them make the wreck run and use it to pull a tree over to tow back to the fire
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[13:36] <x-f> i see Pico Armada has found a few new trackers in Scandinavia, nice
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[13:55] <fsphil> do two flights count as an armada? :)
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[14:09] <number10> it was three fsphil - but you usualy get a few that senik in an arnada
[14:10] <number10> sink
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[14:12] <fsphil> didn't one land in a tree?
[14:12] <fsphil> I guess that still counts :)
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[14:23] <daveake> How far did that one get?
[14:24] <UpuWork> a mile downwind wasn't it ?
[14:24] <daveake> So do I still have the record for shortest flight at 200m? :p
[14:26] <UpuWork> was it even 200 m ?
[14:28] <gonzo___> the shortest should be the one that got loose before they got the payload attached?
[14:28] <daveake> According to google maps, yes 200m :)
[14:29] <gonzo___> seems unfair that someone who has held world records for alt, should alos have the wooden spoon prizes that the rest of us can only aspire to!
[14:33] <number10> it went above the barn - well it touched the roof
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[14:35] <nick_> I'm thinking about power requirements for a hab flight
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[14:36] <number10> yes it was about a mile away
[14:37] <number10> was really two windy to launch
[14:37] <nick_> UpuWork: I see in the ublox data sheet they say <=67mA, would you add anything to that?
[14:37] <hibby> istr some issue with power use gaining initial lock...
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[14:38] <UpuWork> well
[14:38] <UpuWork> initially
[14:38] <UpuWork> then it drops to abotu 45mA when it has a signal
[14:39] <UpuWork> reduces further in power saving mode
[14:39] <hibby> that's real good - that ublox6?
[14:39] <UpuWork> in PSM its about 15mA
[14:39] <UpuWork> in theory the MAX7 due out soon is 4.5mA in PSM
[14:39] <hibby> been a while since I had a poke - last I remember we couldn't drive them from an arduino out because current draw & supply stability...
[14:39] <UpuWork> though I'll confirm that soon
[14:40] <hibby> but that was ublox5, i thinks.
[14:40] <nick_> What happens in PSM?
[14:40] <UpuWork> you can't run the ublox from the 3.3v of an Arduino
[14:40] <UpuWork> its only rated at 50mA
[14:40] <hibby> that was it.
[14:40] <UpuWork> in power saving it goes into 1 second cyclic mode
[14:41] <nick_> cool, so for a standard flight is should spend most of its time in PSM?
[14:41] <UpuWork> Via a boost convertor 1.5V AA -> 3.3V logic the whole board pulls 130mA under contant TX (11dB)
[14:41] <UpuWork> in power saving that drops to abotu 82mA
[14:41] <UpuWork> Not had chance to test the 1.8V board but probably 1/2 that
[14:41] <UpuWork> ish
[14:42] <UpuWork> +/-50%
[14:42] <hibby> decent
[14:43] <nick_> And the NXT2 requires ~20mA?
[14:46] <UpuWork> not measured one tbh
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[14:59] <nick_> I got that from your website
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[15:18] <daveake> Theya re about 20mA
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[15:24] <eroomde> about 16% efficient
[15:24] <eroomde> bit crap
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[15:53] <gonzo___> about right for low power stuff
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[17:05] <nigelvh> Morning fsphil. How's things over there?
[17:05] <fsphil> hullo nigelvh. not bad. appear to have had an internet glitch :)
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[17:06] <nigelvh> Always 'fun'. Sometimes more or less so depending on what you're doing.
[17:07] <nigelvh> Looks like we had some good flights this weekend.
[17:08] <Laurenceb> raggeee
[17:08] Action: Laurenceb just busted a sealed bearing unit
[17:08] <nigelvh> For?
[17:08] <nigelvh> Ah
[17:08] <nigelvh> Yeah, that would be un-fun
[17:08] <Laurenceb> anyone know if its possible to repair them?
[17:08] <eroomde> so now it's just a bearing unit
[17:09] <Laurenceb> all the parts seem to be intact
[17:09] <nigelvh> Just pump it full of silicone, that'll keep it from leaking.
[17:09] <Laurenceb> some sort of firmware bug and its been blown :(
[17:09] <Laurenceb> balls everywhere
[17:09] <Laurenceb> i hate control problems
[17:10] <nigelvh> Especially in situations where it can break itself.
[17:10] <Laurenceb> stick it all back together and pop the inner runner in with a mallet?
[17:10] <Laurenceb> is that doable?
[17:10] <daveake> If you wait a few days there might be some wise men bearing gifts
[17:10] <nigelvh> To be honest, I don't know. Haven't worked much with sealed bearing units.
[17:13] <Laurenceb> hmm looks like ill have to get a new actuator
[17:13] <Laurenceb> thats ~£1K
[17:18] <Laurenceb> shit
[17:22] <Laurenceb> im missing a ball
[17:23] <Laurenceb> thats got to be the most expensive exploding kalman ever
[17:23] <eroomde> erm
[17:24] <eroomde> given it was developed and used in the apollo era, I suspect you're several orders of magnititude out
[17:24] <Laurenceb> heh true
[17:24] <Laurenceb> ill order a new actuator tomorrow
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[17:32] <Laurenceb> but thatll take ages to arrive :(
[17:32] <Laurenceb> this project is never going to get finished
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[18:34] <nick_> Does anyone have any plots of external and/or internal temperature for a flight?
[18:35] <arko> morning
[18:39] <fsphil> evening!
[18:41] <arko> any suggested heating for a hab?
[18:43] <fsphil> good insulation, and a linear regulator?
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[18:44] <fsphil> uh-oh, flickr has changed subtly
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[18:47] <arko> EVERYONE PANIC
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[18:51] <daveake> Needs to change more than subtly
[18:53] <fsphil> if it changes anymore I'll have to issue a brown alert
[18:53] <nigelvh> nick_ I've got a google docs spreadsheet with data for internal and external temps if that's handy
[18:53] <fsphil> I've never flown a temperature sensor
[18:53] <fsphil> will have to do that sometime
[18:54] <fsphil> well there was one in the canon camera, but that wouldn't have been accurate
[18:54] <nigelvh> The data for this flight has GPS, internal and external temp, and barometric pressure.
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[18:59] <nigelvh> Looks like the external sensor got down to -51C
[19:00] <nigelvh> https://docs.google.com/spreadsheet/ccc?key=0AmPLYD9-1gzsdGRocnhwYVhJUmVVUnRPaU42b3JDZmc
[19:02] <nick_> What landing speed to people usually aim for?
[19:03] <nick_> thanks nigelvh
[19:03] <nick_> Can I ask what kind of payload this was (specifically the insulation used)?
[19:04] <nigelvh> This was a small box constructed from pink insulation board (like is used for homes).
[19:05] <nigelvh> Keep in mind that I run higher power transmitters, so the power usage and thus heat generation is higher. So the insides of my payloads tend to be somewhat warmer.
[19:06] <nick_> But you think it would be fair for me to say that with insulation internal temperatures can be kept above 0C?
[19:06] <nigelvh> I wouldn't say that.
[19:06] <nigelvh> I've had other payloads with more openings drop below 0C internal
[19:06] <nigelvh> I don't think I've had one below -10C internal
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[19:07] <nigelvh> 1. The number of openings you have makes a difference, 2. How much heat you're generating, 3. How long you're up there.
[19:08] <nigelvh> You'll note mine starting to cool off pretty good getting down to 11 degrees before warming up as it comes in to land.
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[19:10] <nigelvh> Here's data from another flight that shows the internal temperature getting a bit lower. This box had a hole for a camera to poke out of.
[19:10] <nigelvh> https://docs.google.com/spreadsheet/ccc?key=0AmPLYD9-1gzscmFJeEsycGpDU1RIOGp1R3VyT1I0SWc
[19:10] <nick_> Thanks again
[19:10] <nick_> It would be cool if some of this data was presented in a plot on the wiki
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[19:12] <nigelvh> I would say that every flight is going to have different characteristics, so I wouldn't say that this is exactly what you'll get, but it does help give the idea.
[19:12] <nigelvh> Are there any parts in particular that you're concerned about temperature?
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[19:16] <nick_> Yes
[19:16] <nick_> I have some sensors that have a temperature dependence
[19:16] <nick_> But I think I can correct for it
[19:20] Nick change: daveake_ -> daveake
[19:20] <nigelvh> The ones to really watch out for are gas sensors. Many of them require heaters and just don't work well at those temperatures. Other sensors like pressure just have to be compensated.
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[20:01] <Upu> ping KT5TK
[20:02] <Upu> evening Dan-K2VOL
[20:02] <Dan-K2VOL> hi upu
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[20:26] <Lunar_Lander> hello
[20:26] <nigelvh> Howdy
[20:26] <Lunar_Lander> so here we are on a preliminary test
[20:26] <Lunar_Lander> http://s.gullipics.com/image/h/y/a/5yvphx-kineua-r0or/OERNENIIDecompressionTest1Pressure.png
[20:26] <Lunar_Lander> http://s.gullipics.com/image/9/u/o/5yvphx-kineuh-kylh/OERNENIIDecompressionTest1Altitude.png
[20:27] <nigelvh> That's a rather odd curve, but looks like it's working.
[20:28] <Lunar_Lander> yea, I like levelled off at every 100 mbar from 500 mbar down
[20:28] <nigelvh> I see.
[20:29] <Lunar_Lander> and at 500 and 400 I actually ran down the hallway to the receiver
[20:29] <Lunar_Lander> at the end the pump said it was at 4 mbar, but the record ends at 1010 pascals
[20:29] <Lunar_Lander> so something like 10.1 mbar
[20:29] <nigelvh> What pressure sensor are you using?
[20:29] <Lunar_Lander> the BMP085
[20:30] <nigelvh> I don't think that one goes down that low anyway, so that's pretty good.
[20:30] <Lunar_Lander> yeah
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[20:42] <cuddykid> http://habe.acudworth.co.uk/lab/ <- got the countdown rolling :D (not that it will ever happen at that time)
[20:43] <Lunar_Lander> cuddykid, COOL
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[21:16] <fsphil> talk about getting an early start cuddykid :)
[21:17] <cuddykid> fsphil: lol, it will probably end up happening in summer aswell
[21:17] <number10> why particularly the 9th feb?
[21:17] <cuddykid> number10: got exams until mid-end of jan, then giving myself a few weeks to prep
[21:17] <number10> well thats a good reason
[21:17] <cuddykid> number10: and ideally would be on a saturday :)
[21:18] <number10> pass the exams and have some fun cuddykid
[21:18] <fsphil> if I did a countdown it would probably just be "<blink>12:00:00</blink>"
[21:18] <cuddykid> hah
[21:18] <Lunar_Lander> hi fsphil
[21:19] <Lunar_Lander> XD
[21:19] <fsphil> howdy mr.LL
[21:19] <number10> wouldnt it be some DM random function fsphil -
[21:19] <fsphil> nah, random would mean non-zero
[21:20] <number10> lol but sad realy
[21:20] <fsphil> ah, finally found measuring tape
[21:20] <fsphil> just need to find my crimper now
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[21:21] <number10> was it easy to get permission for first flight?
[21:22] <fsphil> the first few where done easily enough
[21:22] <fsphil> it's been getting harder each time
[21:24] <cuddykid> I find it's completely random here - some times I have to chase him (and he'll send it to me hours before), other times he emails me a week or so before checking up whether I still want permission
[21:24] <number10> I wonder why.. must be frustrating
[21:25] <Lunar_Lander> XD can someone how knows the graham norton show explain me something?
[21:25] <Lunar_Lander> *who
[21:25] <fsphil> nobody can explain graham norton
[21:25] <Lunar_Lander> XD
[21:25] <daveake> oh dear ...
[21:25] <number10> never seen it Lunar_Lander - I think its a little strange
[21:25] <Lunar_Lander> yea
[21:26] <Lunar_Lander> the thing is what is the sense of the part where people sit on a red chair and can be toppled over remotely?
[21:26] <number10> no sense at all I suspect Lunar_Lander - best not watch it
[21:26] <daveake> Humour
[21:26] <Lunar_Lander> xD
[21:26] <daveake> They get someone to sit down ..
[21:27] <daveake> ... then he says "Hello XD"
[21:27] <daveake> then they tip the chair
[21:27] <Lunar_Lander> lol
[21:27] <fsphil> that pretty much sums it up
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[23:03] <Rozier> hello?
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[23:07] <Rozier> In the initial planning stages of a Project for my Explorer Scouts to launch a High Altitude Balloon with cameras etc... very early stages and currently swatting up on all the info so far ukhas.org.uk has been a great help!! any general advice or thoughts greatly received!
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[23:13] <Lunar_Lander> Rozier, may I ask from which country are you?
[23:13] <Lunar_Lander> (germany here)
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[23:17] <Rozier> UK
[23:21] <Lunar_Lander> ah
[23:21] <Lunar_Lander> usually people are like more active in the earlier part of the evening
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[23:34] <Lunar_Lander> Rozier, do you have a certain question?
[23:44] <eroomde> greetings Rozier - where abouts in the UK are you?
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[23:56] <griffonbot> Received email: Steve Aerospace "Re: [UKHAS] Re: Pico launches sat 15th"
[00:00] --- Tue Dec 18 2012