highaltitude.log.20111029

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[07:08] <griffonbot> Received email: Howard Smith "[UKHAS] James May - If you can help please ..."
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[07:19] <griffonbot> Received email: Anthony Stirk "Re: [UKHAS] James May - If you can help please ..."
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[07:37] <nosebleedKT> hi all
[07:38] <number10> hi
[07:41] <nosebleedKT> do we know if worldwide callsigns have a standart length of 6 chars?
[07:43] <eroomde> nope
[07:43] <eroomde> especially if they're on a boat
[07:44] <nosebleedKT> my mistake in question.
[07:44] <eroomde> if I was on a boat I would be:
[07:44] <nosebleedKT> I wanted to ask if the APRS callsigns have fixed value
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[07:44] <nosebleedKT> fixed length*
[07:44] <eroomde> M0TEK/MM
[07:44] <nosebleedKT> :P
[07:45] <eroomde> which means'I'm on a boooooooat'
[07:45] <eroomde> nosebleedKT: not sure I'm afraid
[07:45] <eroomde> if writing code for this kind of thing, I always find it's better to assume not
[07:45] <eroomde> there'll always be exceptions that need handling
[07:47] <Upu> morning
[07:48] <number10> morning
[07:48] <nosebleedKT> hi upu
[07:54] <GW8RAK> Morning. Where are you eroomde?
[07:55] <joph> good morning
[07:56] <eroomde> GW8RAK: In a hooooouse
[07:56] <eroomde> in oxford
[07:56] <eroomde> good morning joph
[07:56] <GW8RAK> A hoooooouse booooooooooat?
[07:56] <eroomde> well infact we're right on the canal
[07:56] <Upu> gah I seem to have been roped into doing a static balloon launch for the radio club to suspect an antenne from
[07:57] <eroomde> and i can see several house boats through the kitchen window
[07:57] <Upu> yeah morning joph
[07:57] <eroomde> Upu: oh awesome
[07:57] <GW8RAK> I was thinking of somewhere exotic and warm
[07:57] <eroomde> i just *love* tethered balloons
[07:57] <eroomde> GW8RAK: what do you mean? oxford is exotic AND warm
[07:57] <number10> Upu is that just a ploy to increase your didtance record
[07:57] <Upu> any advise ? suggested stablisation lines
[07:57] <Upu> lol yeah
[07:57] <eroomde> Upu: well, just low wind really
[07:57] <Upu> and at what height do you have to apply for a NOTAM ?
[07:57] <eroomde> there's no really good line arrangement that's stable
[07:58] <GW8RAK> Only been there once and it wasn't at the time
[07:58] <eroomde> i'd probably just stick with 1
[07:58] <Upu> was probably going to do it anyway as they want 200feet
[07:58] <eroomde> you'll have a second on in the form of co-ax anyway
[07:58] <eroomde> really you want a wee blimp for this kind of thing
[07:58] <Upu> hmm thats a good point
[07:59] <Upu> aren't they expensive ?
[07:59] <eroomde> yes unfortunatelly
[07:59] <eroomde> but really stable
[07:59] <Upu> weather balloon it is
[07:59] <eroomde> they point into the wind nicely and don't bounce around
[07:59] <Upu> yeah
[07:59] <Upu> any manufacturers ?
[07:59] <eroomde> we tested ours statically
[07:59] <eroomde> http://www.youtube.com/watch?v=K29dn0Mzspk
[07:59] <eroomde> and it was fairly comfy up to about 20mph
[08:00] <Upu> where was that ?
[08:00] <eroomde> Davos
[08:00] <eroomde> we were looking at avelanche fields
[08:00] <Upu> Austria ?
[08:00] <Upu> or Romania ?
[08:00] <eroomde> switzerland
[08:00] <Upu> lol
[08:00] <eroomde> we had thermal and video cameras onboard to do 3d reconstruction of temperature maps
[08:00] <Upu> ok
[08:00] <Upu> what was the make of the blimp ?
[08:01] <eroomde> minizepp
[08:01] <Upu> lol "Neil run!"
[08:01] <eroomde> a nice bloke in lausanne
[08:01] <eroomde> Upu: ah yes. that was hairy
[08:02] <eroomde> had to use what little momentum there was left to get her into the wind so she had a chance of coming down on this side of the mountain
[08:02] <number10> the blimp landing vid was quite good if I remember you posted a while ago
[08:02] <eroomde> this one? http://www.youtube.com/watch?v=_0m0jEfR_iw
[08:02] <eroomde> i was chufed with that :)
[08:04] <eroomde> i miss the blimps actually. they were really quite fun
[08:04] <eroomde> nice to be able to do a bit of control and automation
[08:05] <eroomde> blimp control is fascinating actually, like with parachutes you get added mass effects from the potential flow of air around the foil
[08:06] <eroomde> so your control loops have to take into account the momentum and dynamics of the entrained air (which has a significant mass relative to the blimp whereas it doesn't really with a model aeroplane, say) when making control calculations
[08:06] <eroomde> was really interesting stuff, a chnace to learn a bit more about fluid dynamics which i'd always run away from
[08:06] <number10> yes thats the one - pretty cool - looks like a nice day
[08:07] <eroomde> we really were lucky with the weather that week
[08:07] <number10> good visibility
[08:07] <eroomde> it was 5am starts every day and down off the avelanche fields by 11am before they got too heated by the sun
[08:07] <eroomde> but the mornings qwere so calm
[08:08] <eroomde> hmm, i really do want to find another excuse to play with blimps
[08:09] <eroomde> all four of us in the computer vision group have now left cam, the blimp is just stting there and no one else has a clue about it
[08:09] <eroomde> .... it must be rescued, i think
[08:09] <eroomde> now i just need to erase this train of thought from the logs
[08:09] <number10> was that sponsored by someone
[08:09] <eroomde> european fp6 project
[08:10] <eroomde> multi discipline hydrology thing
[08:10] <eroomde> so we did stuff with the remote sensing group at EPFL who had weather stations up on the glaciers
[08:10] <eroomde> we could help them with skin-temp interpolation between their sensor stations
[08:10] <eroomde> and some other groups
[08:10] <eroomde> i'm not sure anyone owns it though
[08:10] <eroomde> well, cam
[08:11] <eroomde> us in the cam group just did the blimp
[08:11] <number10> someone must have an interest in that still
[08:11] <eroomde> well, we do :)
[08:12] <eroomde> the problem is blimps have very strong opinions
[08:12] <eroomde> so if someone random just tried to rig it up and fly it, it would fight back
[08:12] <eroomde> we all had to drive to lausanne to take fillipe's training course
[08:12] <eroomde> http://www.youtube.com/user/minizepp#p/a/u/0/F6wLjy0nEIY
[08:12] <eroomde> this is phillipe
[08:12] <eroomde> the manufacturer
[08:13] <eroomde> really lovely guy, a bit mad
[08:13] <eroomde> keeps fedding you espressos and croissants and gives you free things
[08:13] <eroomde> no idea how he makes money
[08:16] <number10> fun way to make money if he does
[08:16] <eroomde> but yeah i love our blimp. it was an 8m one of his. our payload pod was about 3kg, contained a PC104 stack which was a core2duo board and support boards, a 126GB SSD, a firewire optical camera and an ethernet thermal camera, and batteries for said
[08:17] <eroomde> it could get to about 70km on full throttle
[08:17] <eroomde> but that was pulling about 120A out of the batteries
[08:18] <number10> was the thermal camera heavey?
[08:18] <eroomde> yes fairly
[08:18] <eroomde> it was robustly constructed
[08:18] <eroomde> i think about 1kg
[08:18] <number10> no good for a ballon then
[08:18] <eroomde> http://www.flir.com/uploadedFiles/Thermography_APAC/Products/Product_Literture/090722%20A320%20datasheet_eng.pdf
[08:19] <eroomde> something like this
[08:19] <eroomde> it had a calibrating source onboard
[08:19] <eroomde> so was v accurate
[08:19] <eroomde> and huge dynamic range
[08:19] <number10> I was wondering about the conference subject of formalisation of UKHAS
[08:19] <eroomde> you could see what keys someone had touched on a laptop keyboard after they'd finished typing
[08:19] <eroomde> just from risidual heat
[08:19] <number10> if we could doe something interesting between us all
[08:20] <eroomde> hardware-wise?
[08:20] <number10> well even just collecting data of all projects for a start
[08:20] <number10> so that the society looks more than just a bunch of individuals
[08:21] <number10> I know hardware wise would be difficult - as we are all in different locations but maybe sometime
[08:21] <eroomde> hopefully things like habitat can help towards that
[08:23] <number10> yes
[08:24] <eroomde> and it really does help us make a case for insurance
[08:29] <number10> yes, I was wondering about insurance - was there any conference notes on the formalisation talk that Rob didnt get the chance to do?
[08:30] <fsphil-laptop> I don't remember much about that bit, it was fairly rushed
[08:30] <eroomde> yeah, we really got beaten by the clock
[08:31] <number10> I suspect my house or travel insurance does not cover me
[08:31] <eroomde> it probably needs another big roundtable discussion
[08:32] <eroomde> i think that:
[08:32] <eroomde> 1) TV insurance covers stuff done for TV
[08:32] <eroomde> i.e. steve managed to wangle a tv thing with a special effects insurer
[08:32] <nosebleedKT> fsphil-laptop: http://imagebin.org/181380
[08:32] <eroomde> but they had no interest in general hab insurance when i asked
[08:33] <eroomde> 2) *some* schools seem to think their general science experiments insurance covers hab launches in the classroom
[08:33] <eroomde> 3) I have got general balloon insurance on two occassions
[08:33] <nosebleedKT> fsphil-laptop: arduino aprs tracker without any radioshield and stuff. just arduino + radiometrix
[08:33] <fsphil-laptop> nosebleedKT, nrx1?
[08:33] <eroomde> both were like pulling teeth
[08:33] <nosebleedKT> fsphil-laptop:yes
[08:33] <eroomde> 1 was through the university but then they said they couldn't insure it
[08:33] <number10> I bet - and premiums would be high
[08:33] <nosebleedKT> it decodes much stuff
[08:33] <nosebleedKT> i have the source code
[08:34] <eroomde> so for the second attempt I went to a small private experimental aviation insurers in texas
[08:34] <nosebleedKT> i have everything :)
[08:34] <nosebleedKT> you just plug arduino in usb and you have aprs :)
[08:35] <number10> if we keep some hab records of the number of launches that we have all done wothout any problems may help
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[08:44] <nosebleedKT> fsphil-laptop: http://a6.sphotos.ak.fbcdn.net/hphotos-ak-snc7/s720x720/318436_306196052727779_259791880701530_1396135_1502270844_n.jpg
[08:44] <nosebleedKT> fsphil-laptop: so simple
[08:49] <fsphil-laptop> yay, blue led :)
[09:01] <nosebleedKT> :P
[09:01] <nosebleedKT> fsphil-laptop
[09:01] <nosebleedKT> AREF and VIN on arduino are the same ?
[09:02] <Darkside> no
[09:03] <Darkside> vin gets regulated down to 5v
[09:03] <Darkside> aref is the reference voltage for the internal ADC
[09:07] <nosebleedKT> is it bad if i give it 5v ?
[09:07] <nosebleedKT> to the afre
[09:07] <nosebleedKT> AREF
[09:09] <Darkside> as long as you're running the chip from 5v
[09:09] <Darkside> thats fine
[09:09] <nosebleedKT> yes
[09:09] <Darkside> (i think)
[09:09] <Darkside> normally just ground it with a cap, or leave it floating
[09:10] <nosebleedKT> i need not toleave it floating
[09:10] <nosebleedKT> i need not to leave it floating
[09:10] <Darkside> why?
[09:10] <nosebleedKT> some radio circuitry wants it
[09:11] <Darkside> well then ground it with a cap
[09:11] <Darkside> 100nF or something
[09:11] <nosebleedKT> https://8097140969189265898-a-1802744773732722657-s-sites.googlegroups.com/site/ki4mcw/Home/arduino-tnc/voltage_divider_complex.png?attachauth=ANoY7cr6w3FCft9_8E5hIP-3OUv1_gWRBRMNTcqpvuGh-BTN-i55_gg_jh_nSIdZQ_rLk03vxQPXhERm6nytnIibDrqHjXeHK_3Fj8mflTYyPWulJ1VbDubWDDWpe_72q8jxZqUHHtObYfHIZVe8fb36ofQWFPQywM4hSyFl2XLjDqQAFO7bF4vvjqloH2wMipUUFgcN_RmQ6GCIovAd0Luh37fmJwnOiwgW8tLQdt5RK3T1-rf9jF
[09:11] <nosebleedKT> A%3D&attredirects=0
[09:12] <Darkside> well that link fails
[09:12] <nosebleedKT> https://sites.google.com/site/ki4mcw/Home/arduino-tnc
[09:12] <nosebleedKT> last pic
[09:13] <Darkside> what of it?
[09:13] <nosebleedKT> thats the circuit
[09:13] <Darkside> he's using 3.3v as a reference for the ADC
[09:13] <nosebleedKT> i use 5v
[09:13] <Darkside> are you trying to do the same thing as him?
[09:13] <nosebleedKT> but have 10k resistors
[09:14] <nosebleedKT> yes
[09:14] <nosebleedKT> i already do it
[09:14] <nosebleedKT> and get pretty nice results
[09:14] <nosebleedKT> http://imagebin.org/181380
[09:14] <Darkside> but what referecne are you using in your code
[09:14] <nosebleedKT> http://a6.sphotos.ak.fbcdn.net/hphotos-ak-snc7/s720x720/318436_306196052727779_259791880701530_1396135_1502270844_n.jpg
[09:14] <Darkside> by default it uses the VCC reference
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[09:16] <Darkside> no wait
[09:16] <nosebleedKT> i use his circuit with just 5v and 10k resistors and 10uF cap
[09:16] <Darkside> i think its VCC - 0.7v
[09:16] <nosebleedKT> I know get even more resuslts
[09:17] <nosebleedKT> arduino decodes more aprs from the air now
[09:17] <nosebleedKT> :P
[09:17] <Darkside> then why are you worrying about VREF if it works?
[09:17] <nosebleedKT> because before i was giving accidentaly 5v to VIN
[09:17] <nosebleedKT> and now i see that i should give it to AREF
[09:18] <nosebleedKT> in code he uses AREF
[09:18] <nosebleedKT> ADMUX = (1<<REFS0) ; // channel0, ref to external input (Aref)
[09:18] <Darkside> k
[09:18] <nosebleedKT> before i had AREF floating
[09:18] <Darkside> well then do it
[09:18] <Darkside> see if it works...
[09:18] <nosebleedKT> i think it works better
[09:19] <nosebleedKT> i see new aprs messages
[09:19] <nosebleedKT> that i didnt see before
[09:19] <nosebleedKT> arduino got mad
[09:20] <nosebleedKT> I think i should get that program on ukhas
[09:20] <Darkside> nosebleedKT: its only part of aprs though
[09:20] <Darkside> its just the TNC side of it
[09:21] <nosebleedKT> yes only receiver
[09:21] <nosebleedKT> arduino aprs receiver
[09:21] <Darkside> if you want to do full APRS stuff you need the whole AX25 layer
[09:21] <Darkside> which you can don a PC, yes
[09:21] <Darkside> nosebleedKT: you can do that just as well with software on a PC
[09:21] <Darkside> AGPWE, etc
[09:21] <nosebleedKT> I already do the ax25 in my transmitter
[09:22] <nosebleedKT> i dont like AGWPE even it is made from a guy in my city :P
[09:22] <Darkside> then use othe rprograms
[09:22] <nosebleedKT> Darkside: i want to use my programs :)
[09:23] <nosebleedKT> thats why i make it like that
[09:23] <Darkside> then do that
[09:23] <Darkside> ok
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[10:35] <Darkside> anyone in the UK keen to try 10m?
[10:35] <Darkside> GW8RAK: ?
[10:36] <GW8RAK> Hi Darkside. Can give it a try if we find a clear spot. Big contest on
[10:36] <mattltm> Darkside: I would normaly buy I'm just about to go out. Sorry!
[10:37] <mattltm> s/buy/but
[10:44] <Darkside> GW8RAK yeah i noticed the contest lol
[10:45] <Darkside> hmm
[10:45] <GW8RAK> The predictions suggest 21MHz is best at present.
[10:46] <GW8RAK> Decreasing to 10Mhz overnight (at our end)
[10:46] <Darkside> ok, 15m it is
[10:46] <GW8RAK> Or 178MHz?
[10:46] <GW8RAK> oops, 18MHz
[10:47] <Darkside> 21331
[10:47] <Darkside> we dont have 18MHz here
[10:48] <GW8RAK> Oh, I thought they were global. Okay, suggest a frequency
[10:48] <Darkside> 21331?
[10:48] <Darkside> seems quiet this end
[10:48] Action: fsphil-laptop has a listen
[10:49] <GW8RAK> Can listen for you, but it's wall to wall contest here. Give it a go
[10:50] <fsphil-laptop> yea 21.331 is pretty busy here
[10:50] <Darkside> hold on
[10:50] <Darkside> theres someone just off ffrequency
[10:50] <Darkside> ffff
[10:50] <fsphil-laptop> several people here lol
[10:50] <Darkside> find me a clear freq
[10:50] <fsphil-laptop> yikes, it's madness on this band
[10:51] <Darkside> what about 20m
[10:51] <Darkside> 14MHz
[10:52] <fsphil-laptop> hehe, everytime I find a free spot and start typing in the frequency, someone starts talking
[10:52] <fsphil-laptop> 14.355
[10:52] <GW8RAK> 15m is out, solid wall to wall contacts. 20m is also good according to the prediction
[10:53] <GW8RAK> That's out of band phil
[10:53] <fsphil-laptop> well that's why it's so quiet
[10:53] <fsphil-laptop> there really isn't a free space
[10:53] <MikCx> Does anyone know if the guy who runs randomarospace.com is on here?
[10:53] <Darkside> oh
[10:53] <fsphil-laptop> 14.100?
[10:53] <Darkside> its not out of band here lol
[10:53] <MikCx> (*randomaerospace.com)
[10:54] <GW8RAK> Can your rig listen outside the bands?
[10:54] <Darkside> fsphil-laptop: thats got morse code on it here
[10:54] <GW8RAK> .100 is in the data seciton
[10:54] <Darkside> heh
[10:54] <fsphil-laptop> random engineering MikCx? that'll be RocketBoy, who's not here atm
[10:54] <GW8RAK> section
[10:54] <Darkside> fsphil-laptop: i can transmit on 14.355 if you want
[10:54] <GW8RAK> I can put a signal out on 14.500.
[10:54] <GW8RAK> Not quite illegal
[10:54] <MikCx> Ok - Thanks
[10:54] <Darkside> lemme check the aus bandplans
[10:54] <GW8RAK> Or 13965
[10:54] <fsphil-laptop> Darkside, I'm on there now if you want to try
[10:55] <GW8RAK> You'r right Phil, it's lovely and quiet
[10:55] <Darkside> no wait fsphil-laptop lol
[10:55] <Darkside> hold on
[10:55] <Darkside> 14355
[10:55] <Darkside> its out of banf here too lol
[10:55] <fsphil-laptop> too quiet :p
[10:56] <Darkside> our band stops at 14350
[10:56] <GW8RAK> It is just calling out for someone
[10:56] <fsphil-laptop> same here
[10:56] <GW8RAK> How do we open a private channel on here?
[10:56] <SpeedEvil> /join #privatechannel
[10:56] <Darkside> hmm
[10:56] <Darkside> so found me a clear spot i-band yet?
[10:56] <SpeedEvil> if you don't care about it actually being that private
[10:56] <Darkside> in-band*
[10:56] <Darkside> :P
[10:57] <fsphil-laptop> Darkside, not yet. it's absolutely mental
[10:57] <GW8RAK> The trouble is that if I say let's QSY to another channel, everyone will follow to see what we talk about. :)
[10:57] <Darkside> haha
[10:57] <Darkside> goddamnit
[10:57] <number10> so what frequency are u going for
[10:57] <GW8RAK> Darkside, can you listen on 14.500MHz?
[10:57] <Darkside> hold on
[10:57] <Darkside> 14355
[10:57] <Darkside> go there
[10:58] <GW8RAK> No, 14.500
[10:58] <fsphil-laptop> 14.500 is nice and empty too
[10:58] <Darkside> cant TX there
[10:58] <Darkside> cant TX therecan listen tho
[10:58] <Darkside> listening there now
[10:58] <fsphil-laptop> just got a nice fart sound on 14.500
[10:58] <Darkside> oh lol
[10:58] <Darkside> the over the
[10:58] <GW8RAK> Standby Darkside and I'll send some voice. It'll be a strange callsign
[10:58] <Darkside> horizon radar is poling around there
[10:59] <GW8RAK> You heard it Phil :)
[10:59] <Darkside> what
[10:59] <Darkside> what as you
[10:59] <fsphil-laptop> you did the fart noise? lol
[10:59] <Darkside> i thought it was the OTH radar
[10:59] <Darkside> GW8RAK: sending voice?
[10:59] <GW8RAK> Anyone hear anything?
[10:59] <GW8RAK> Will send again
[10:59] <fsphil-laptop> nothing since the radar noise
[10:59] <Darkside> nothing
[11:00] <fsphil-laptop> nope
[11:00] <Darkside> go 14355
[11:00] <Darkside> and ill TX
[11:00] <GW8RAK> Okay, good idea, poor execution
[11:00] <Darkside> 14355?
[11:00] <fsphil-laptop> rx'ing 14.355 usb
[11:01] <GW8RAK> All ready
[11:01] <Darkside> anything?
[11:01] <fsphil-laptop> wooshy sound, nothing else
[11:01] <GW8RAK> Not a sausage
[11:01] <Darkside> just TXed
[11:01] <Darkside> ok
[11:01] <Darkside> well thats shit
[11:01] <GW8RAK> PSK?
[11:01] <Darkside> nah
[11:01] <GW8RAK> Sometimes, shit is just the perfect word
[11:01] <Darkside> lets try another band then
[11:01] <fsphil-laptop> lol
[11:02] <number10> is this AM or USB
[11:02] <fsphil-laptop> it's a word I should probably start using in life :)
[11:02] <fsphil-laptop> USB number10
[11:02] <number10> ta
[11:02] <GW8RAK> With this contest on, I don't think we'll find anywhere until it ends without using the WARC bands
[11:03] <Darkside> theres gotta be somewhere on 10m that is free
[11:03] <Darkside> though my antenna here doesnt tune up on 10m well
[11:03] <GW8RAK> Prediction say 10m is too high, but let's look for a spare frequency.
[11:03] <fsphil-laptop> 28.580?
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[11:04] <GW8RAK> 28.750?
[11:04] <Darkside> 580
[11:04] <Darkside> 28.580
[11:04] <fsphil-laptop> 750 is clearer
[11:04] <Darkside> ok
[11:04] <GW8RAK> The further away from calling channel the better.
[11:04] <GW8RAK> Even on 750, there is some faint voice
[11:05] <fsphil-laptop> I'm just getting noise on 28.750
[11:05] <fsphil-laptop> no voice at all
[11:05] <GW8RAK> Lots of people on WARC today saying they aren't interested in the contest
[11:05] <GW8RAK> Will put out a CQ call
[11:05] <fsphil-laptop> ah, there is a faint voice
[11:05] <Darkside> notihing here
[11:05] <Darkside> theres something a bit higher
[11:06] <Darkside> 783 i think
[11:06] <Darkside> 782.
[11:06] <Darkside> someone talking on 28782
[11:06] <GW8RAK> Don't know how long this contest is on for, but may be best to wait till all the shouters have got tired
[11:06] <Darkside> go 28779 so i can get away from them
[11:07] <fsphil-laptop> on 28.779 now
[11:07] <GW8RAK> 779 it is
[11:07] <fsphil-laptop> clear here
[11:07] <fsphil-laptop> ah
[11:07] <fsphil-laptop> sorta
[11:07] <fsphil-laptop> faint voice
[11:07] <GW8RAK> watery fart sounds
[11:07] <fsphil-laptop> ooh don't have that
[11:07] <fsphil-laptop> could be local? :)
[11:07] <GW8RAK> Sorry, that wasn't on the radio :)
[11:07] <GW8RAK> lol
[11:08] <Darkside> nothing?
[11:08] <Darkside> i just put out a call
[11:08] <GW8RAK> nothing
[11:08] <fsphil-laptop> I can hear a faint voice but can't make out any words
[11:08] <Darkside> thats not me
[11:08] <Darkside> im not TXing atm
[11:08] <fsphil-laptop> yea, it's still talking
[11:08] <Darkside> fffffuuuuuuu
[11:08] <GW8RAK> I'll try to get a map of the coverage from you Darkside on 28
[11:08] <Darkside> http://www.ips.gov.au/Images/HF%20Systems/Global%20HF/HAP%20Charts/Adelaide.gif
[11:09] <fsphil-laptop> Bill might be launching a balloon with 10m telemetry today
[11:09] <fsphil-laptop> wonder if he remembered about the contest
[11:10] <GW8RAK> That was what I was just looking for Darkside. Does that suggest 2MHz?
[11:10] <GW8RAK> 10m telemetry won't happen today
[11:10] <GW8RAK> Although data will be clearer
[11:10] <Darkside> hrm
[11:10] <Darkside> anyone near an IRLP node?
[11:10] <Darkside> :P
[11:10] <fsphil-laptop> haha
[11:10] <fsphil-laptop> nope
[11:11] <Darkside> aww
[11:11] <GW8RAK> Yes, there's one nearby, but don't know how to use it.
[11:11] <fsphil-laptop> I can hear some echolink nodes but I can't talk back through them for some reason
[11:11] <GW8RAK> But that would be a good use for it.
[11:11] <Darkside> heh
[11:11] <Darkside> whats the node number GW8RAK
[11:11] <GW8RAK> Don't know. Just Googling
[11:13] <GW8RAK> One nearby on 4m, but no gear set up for that
[11:14] <Darkside> ok
[11:14] <fsphil-laptop> not many do
[11:14] <Darkside> nbm then
[11:14] <Darkside> nvm*
[11:15] <GW8RAK> One minute. Phone going
[11:15] <Darkside> kk
[11:16] <fsphil-laptop> lots of FM on 10m today too
[11:16] <GW8RAK> 197681 is the Manchester node Darkside
[11:16] <Darkside> thats echolink
[11:16] <Darkside> i dont have that
[11:17] <GW8RAK> Is that not the same thing?
[11:17] <Darkside> nope
[11:17] <Darkside> plus no echolink nodes around here
[11:18] <GW8RAK> Just looking for one.
[11:19] <Darkside> back on a little later
[11:20] <GW8RAK> Does 5289 mean anything Darkside?
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[11:32] <Darkside> GW yes
[11:32] <Darkside> hmm
[11:33] <Darkside> GW8RAK: hold on
[11:33] <Darkside> lemme check up on that node
[11:33] <Darkside> GW8RAK: see if you can access it
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[11:33] <Darkside> key in a DTMF '0' and see if it responds
[11:35] <NigelMoby> 0
[11:35] <NigelMoby> Computer says Noooooo
[11:36] <Darkside> herp
[11:36] <Darkside> NigelMoby: any IRLP nodes near you?
[11:36] <GW8RAK> Just realised the purpose of a DTMF mike.
[11:36] <GW8RAK> Will try
[11:36] <Darkside> haha ok
[11:36] <Darkside> if it works, i'll dial into it
[11:36] <NigelMoby> Err not that I know of dude.
[11:38] <GW8RAK> Don't seem to be accessing it, ,but I'm getting a K back
[11:38] <Darkside> K?
[11:39] <Darkside> you have the tone on?
[11:39] <GW8RAK> Sorry, getting confused. Yes I think I am getting into it
[11:39] <Darkside> http://status.irlp.net/index.php?PSTART=11&nodeid=5289
[11:40] <GW8RAK> Do I need the CTCSS tone as well?
[11:40] <Darkside> seems like it
[11:40] <GW8RAK> Will have to try another rig, but it's strong signal here
[11:40] <Darkside> if you key in DTMF 0, it should respond with info about the node
[11:41] <Darkside> oh wait
[11:41] <Darkside> http://www.g4wli.com/node.html
[11:41] <Darkside> its 211 for node info
[11:42] <NigelMoby> Oo theres 1 in bristol
[11:42] <NigelMoby> 4096
[11:43] <NigelMoby> But I don't have hf anymore :(
[11:43] <Darkside> wha
[11:43] <Darkside> no thats the node number
[11:43] <Darkside> wtf
[11:44] <Darkside> 224MHz?
[11:44] <Darkside> what is this madness
[11:44] <NigelMoby> Oh..lol pass. I'm just a noob lol
[11:46] <Darkside> GW8RAK: want me to call into the node?
[11:46] <Darkside> can you key it yet?
[11:46] <NigelMoby> I'm guessing 224 is slightly unusual?
[11:47] <Darkside> 1.25m band
[11:47] <Darkside> weird
[11:47] <GW8RAK> Just setting up another rig. Overload of wires. 2 mins and I'll be ready
[11:48] <Darkside> heh ok
[11:48] <NigelMoby> Hey graham :)
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[11:50] <GW8RAK> Think I'm ready Darkside. I've on channel and have set the CTCSS
[11:50] <GW8RAK> Hi Nigel
[11:50] <Darkside> GW8RAK: can you DRMF in 211?
[11:50] <Darkside> and have it respond with info
[11:50] <GW8RAK> Time to RTFM
[11:50] <Darkside> dtmf*
[11:51] <GW8RAK> No, Read the F******G manual
[11:51] <NigelMoby> Lol
[11:51] <Darkside> i was correcting my typo from before :P
[11:52] <Darkside> well i might dial up the node
[11:53] <Darkside> GW8RAK: VK5FDRK
[11:54] <Darkside> Mark
[11:54] <Darkside> <-- Mark
[11:55] <GW8RAK> It works!!!
[11:56] <NigelMoby> Yey!
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[12:00] <Darkside> hmm
[12:00] <Darkside> i think i might be loosing the signal to the repater
[12:00] <Darkside> oh wow, diital noise
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[12:01] <Darkside> GW8RAK: http://g.co/maps/k2pe5
[12:03] <Darkside> cool!
[12:03] <GW8RAK> Woo hoo. That was fun.
[12:03] <Darkside> see the link?
[12:04] <GW8RAK> Now I know we can converse for free on Skype and IRLP mostly uses internet linking, but radio is still involved. :)
[12:04] <GW8RAK> It's fun
[12:04] <Darkside> hehe
[12:04] <Darkside> yeah
[12:04] <Darkside> but there was a lot of audio garbling
[12:05] <GW8RAK> Don't know what the inteference was.
[12:05] <Darkside> i reckon the repeater on my end has a crap net connection
[12:06] <GW8RAK> It didn't sound like normal FM interference
[12:08] <fsphil-laptop> ooh you managed a contact
[12:10] <Darkside> via IRLP
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[13:01] <Darkside> http://www.theregister.co.uk/2011/10/27/google_maps_api_no_longer_free/
[13:01] <Darkside> you're fucking kidding me
[13:03] <rob_> wtf
[13:03] <rob_> mad
[13:03] <russss> http://mapstraction.com/
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[13:21] <Laurenceb_> *cough* openstreetmap
[13:21] <Laurenceb_> ovi maps looks really cool.. dunno how easy it is to run an a pc
[13:21] cuddykid (~acudworth@128.243.253.217) joined #highaltitude.
[13:21] <BrainDamage> openstreetmap lacks the detail of google maps, but I agree it's the way to go
[13:22] <cuddykid> g'day all
[13:23] <DanielRichman> one of the original todos for habitat was to support both OSM & Gmaps in the browser; the primary motivation was so that it can be easily run offline in a chase car. It's quite a way down the todo list though.
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[13:35] <Randomskk> Darkside: why are you so annoyed/upset/surprised that google are doing this?
[13:35] <Darkside> ahh, i guess i shouldn't be surprised
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[13:43] <SpeedEvil> It's lots of loads a day.
[13:43] <SpeedEvil> I'd be astonished if hab uses ever got to the limit
[13:45] <Randomskk> I think the worst part of it is the fun mash-up style web apps people do that suddenly get really popular
[13:45] <Randomskk> but I guess this is just added incentive for them to use OSM or something
[13:52] <DanielRichman> the original google post does say that they won't instantly cut you off
[13:52] <DanielRichman> so I guess if you get slashdotted for a day they might take pity? unsure.
[13:52] <Randomskk> also we have this whole distributed architecture going on
[13:53] <Randomskk> "oh no, spacenear.us has used its daily limit? you can see the same data on your local computer, or on habhub.org, or on..."
[13:53] <russss> DanielRichman: just use mapstraction, then you can switch
[13:53] <DanielRichman> russss: yeah I remember seeing that a while ago
[13:53] <Randomskk> has it got better? we looked into it quite a lot when designing early habitat architecture stuff
[13:53] <Randomskk> but it was like, kinda rubbish at the time
[13:53] <Randomskk> that was a year ago though
[13:53] <russss> I used it a while back and it was fine for my use
[13:53] <russss> which admittedly wasn't hugely sophisticated
[13:55] <Randomskk> probably worth another look
[13:55] <Randomskk> especially with the web ui work coming up soon
[14:00] <DanielRichman> indeed
[14:00] <DanielRichman> gmaps api is very very easy to use
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[14:18] <SpeedEvil> Stupid thermosiphons.
[14:18] <SpeedEvil> How do they work?
[14:18] <SpeedEvil> Meh.
[14:18] <SpeedEvil> I have a solar-thermal panel.
[14:18] <SpeedEvil> It is above the hot water cylinder.
[14:19] <SpeedEvil> It turns out that the 20cm of coil inside the hot water cylinder is quite adequate to set up a thermosiphon of initially 6mm/s, which rapidly bootstraps up to quite a lot faster.
[14:21] <Laurenceb_> is it installed in the attic now?
[14:22] <SpeedEvil> yes.
[14:22] <Laurenceb_> awesome
[14:22] <SpeedEvil> 160W loass.
[14:24] <SpeedEvil> Even a couple of hours sun is enough to warm it noticably.
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[14:49] <fsphil-laptop> bill is sensibly not flying the 10m radio on his flight today
[14:50] <jcoxon> hey fsphil-laptop
[14:51] <fsphil-laptop> g'day jcoxon, how's things over there?
[14:51] <jcoxon> i'm back
[14:52] <jcoxon> shall i clear the tracker for WB8ELK
[14:52] <jcoxon> ?
[14:52] <fsphil-laptop> yea, there's been plenty of time for screenshots
[14:52] <fsphil-laptop> still neat to see though :)
[14:53] <jcoxon> also being habitat we can replay it
[14:54] <fsphil-laptop> indeedy
[14:54] <fsphil-laptop> I've got my map setup to read from just before they launched
[14:56] <fsphil-laptop> good time in boston jcoxon?
[14:57] <jcoxon> map all fixed
[14:57] <jcoxon> fsphil-laptop, yeah great time
[14:57] <jcoxon> glad to be back
[14:58] <jcoxon> manage to see and do most things
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[15:10] <jcoxon> launch
[15:37] <Upu> http://imagebin.org/181447
[15:37] <fsphil-laptop> no updates?
[15:37] <Upu> hey jcoxon welcome back
[15:37] <fsphil-laptop> ooh
[15:38] <jcoxon> thanks
[15:38] <Randomskk> Upu: I would be very careful with your routing there
[15:38] <Randomskk> in particular the very broken ground plane and the trace that runs through the sma connector
[15:39] <Upu> yeah
[15:39] <Upu> it was a first stab
[15:39] <Randomskk> it's readily possible to route it entirely single sided with just one large ground plane on the back side
[15:40] <BrainDamage> Randomskk: that quartz looks trough-hole
[15:40] <Randomskk> BrainDamage: many crystals are through hole
[15:40] <Upu> yeah I saw yours
[15:40] <Randomskk> they are physically large devices for high ish accuracy and reasonable cost, and the SMD versions are mechanically weaker and electrically somewhat worse connections
[15:40] <Randomskk> not much reason to smd it
[15:40] <BrainDamage> I mean, it'd be possible to use on a single side but it'd mean a plated hole
[15:41] <Randomskk> oh, I see what you mean - by single sided I really mean all the signals top side, as it still required a ground plane for ground routing
[15:41] <Randomskk> see e.g. http://www.flickr.com/photos/randomskk/5909357111 http://www.flickr.com/photos/randomskk/5909916408
[15:41] <Randomskk> though actually no pth required for the crystal as I only used it on the solder layer
[15:41] <Randomskk> however pth still needed for all the ground vias
[15:42] <Randomskk> (which is also really important for the matching and filterin output stage - otherwise you can get loop currents topside where there's a shared via between ground nodes in the filter)
[15:42] <Upu> cheers for comments
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[15:43] <Randomskk> Upu: http://www.maxim-ic.com/app-notes/index.mvp/id/4636 has some good tips
[15:43] <Randomskk> in particular note what they say about orientation of inductors, slots/breaks in ground planes, unintentional coupling and the possibility for issues when sharing ground vias on filters
[15:47] <Laurenceb_> yeah RF layout is a pita
[15:47] <Matt_soton> btw Randomskk, i found the limit on spurious output from transmitters for ism
[15:47] <Matt_soton> its much less then 70dB
[15:48] <Matt_soton> or -70dB even
[15:48] <Randomskk> 70dB is really a lot
[15:49] <Matt_soton> its about 45 dBc at 10mW for the frequency im looking at
[15:49] <Matt_soton> so filtering a square wave is feasable
[15:49] <Randomskk> fairly achievable then I guess
[15:49] <Randomskk> ooh okay
[15:49] <Randomskk> still less pretty though. this is for the uhf oscillator or whatever? to get your /4?
[15:49] <Matt_soton> i was going to try a HF transmitter
[15:50] <Matt_soton> and crystals are easy to get at 4x the frequency
[15:51] <Randomskk> fair enough
[15:51] <Randomskk> if you have an LC tank at the output of the /4 and feed back off that it should clean up nicely?
[15:52] <Matt_soton> i was also going to use an opamp for hte 'amp' but it looks like it needs a 4Vp-p output to drive 10mW into 50ohm
[15:52] <zyp> I did some 2.4GHz stuff once
[15:52] <Matt_soton> i was going to feed the square wave into a opamp, have a 2nd order filter around the opmap, then into a pi or T filter before the antenna
[15:53] <Randomskk> seems reasonable enough
[15:53] <Matt_soton> but for 10mW output on 50ohm you need 0.7V RMS on the load, so 1.4V RMS on the output of the opamp before the 50ohm output resistor
[15:54] <Matt_soton> then 1.4V RMS = 4Vp-p
[15:54] <Matt_soton> so how does the ntx2 get 10mW from a 3.3V supply :\
[15:54] <Randomskk> 2v8 actually, isn't it
[15:55] <Matt_soton> yea thats even 'worse' :\
[15:55] <Randomskk> could have a voltage doubler, or could have a ratio that's not 1:1 on output impedance
[15:55] <Randomskk> you suffer in terms of power transfer though
[15:55] <Matt_soton> well output transformer could do that
[15:56] <Matt_soton> i suppose there maybe an output impedance that works quite nicely with 50ohm perhaps
[15:57] <Randomskk> get an ntx2 and a scope and start finding out? :P
[15:57] <Matt_soton> i have the image of the broken cusf one at least
[15:58] <Matt_soton> otherwise could get a nice old text book out thte library
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[15:58] <Randomskk> hehe
[15:58] <Randomskk> my RF electronics lecturer is like a walking old textbook
[15:58] <Randomskk> it's amazing
[15:58] <Randomskk> also we had a lecture on what jon did to that crystal for the micrel radio
[15:58] <Randomskk> which was amusing
[15:59] <Matt_soton> was it actually the same circuit in the end (give or take a bit)?
[15:59] <Randomskk> yea, somehow
[15:59] <Randomskk> he should have used a few orders of magnitude different Rs and Cs in places but
[15:59] <Randomskk> meh, it worked
[16:00] <Matt_soton> well i suppose the reduced linearity or whatever it gave wouldnt have made any differnece with two tone rtty
[16:00] <Randomskk> indeed
[16:02] <Matt_soton> i think ill look through the notes for the yr4 rf courses
[16:02] <Matt_soton> although it turns out i already have one of the books
[16:02] <Matt_soton> that will explain why its a 1 week loan...
[16:03] Jasperw (~jasperw@2001:470:1f08:1caf::2) joined #highaltitude.
[16:04] <Laurenceb_> i was looking at the RF22B modules the other day
[16:04] <Laurenceb_> they need to read that app note :P
[16:06] <Matt_soton> shame that thing doesnt give the raw I/Q signals :(
[16:18] Lunar_Lander (~Miranda@p54A07209.dip.t-dialin.net) joined #highaltitude.
[16:18] <Lunar_Lander> hello
[16:21] <Matt_soton> afternoon
[16:27] chris_99 (~chris_99@unaffiliated/chris-99/x-3062929) joined #highaltitude.
[16:28] <Lunar_Lander> how is the life?
[16:32] <fsphil-laptop> squishy
[16:33] <Lunar_Lander> yea
[16:33] <Lunar_Lander> btw I just met an irish girl
[16:33] <Lunar_Lander> XD
[16:33] <fsphil-laptop> they exist??
[16:34] <Lunar_Lander> xD I think so
[16:39] <fsphil-laptop> I'm not so sure. We demand photographic evidence :)
[16:39] <Lunar_Lander> XD
[16:41] <Lunar_Lander> http://img256.imageshack.us/img256/5996/photo0003vj.jpg
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[16:48] <Lunar_Lander> there you are fsphil-laptop
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[16:51] <fsphil-laptop> lol
[16:51] <fsphil-laptop> well, that's pretty convincing
[16:53] Paradoxial (~Paradoxia@pool-108-28-22-94.washdc.fios.verizon.net) joined #highaltitude.
[16:53] <griffonbot> Received email: Howard Smith "[UKHAS] Tiny GPS unit"
[16:54] <Lunar_Lander> xD
[17:03] Dan-K2VOL (~Dan-K2VOL@69.64.6.70) joined #highaltitude.
[17:04] <Lunar_Lander> damn
[17:04] <Lunar_Lander> she still has a bf
[17:04] <Lunar_Lander> and he is also from germany
[17:04] <Dan-K2VOL> One hell of a tiny GPS new at sparkfun
[17:05] <Lunar_Lander> yea
[17:06] <fsphil-laptop> wow
[17:06] <DanielRichman> "30uA while maintaining a hot start"
[17:07] <Lunar_Lander> yea
[17:08] <Lunar_Lander> is that useful for us?
[17:24] <DanielRichman> iirc james launches pico habs that idle for an hour or so, switch on, get gps, send it down, then switch off so the battery last ages / you can fly with fewer batteries to make things ultra light
[17:24] <Lunar_Lander> yeah
[17:25] <DanielRichman> I wonder how long you can idle at 30uA (+ fix in 1s) for it to take less power than switching off completely then getting a cold start fix in 30s
[17:25] <DanielRichman> probably ages.
[17:26] <Lunar_Lander> true
[17:27] <DanielRichman> if it uses 100mA while getting a fix then it's like, 27 hours or something silly
[17:28] <Dan-K2VOL> it's darn nice!
[17:29] <DanielRichman> ah apparently it uses 65mA without external antenna (it doesn't appear to need one)
[17:29] <Dan-K2VOL> ouch, that's high
[17:29] <DanielRichman> only while getting a fix though
[17:30] <DanielRichman> so if your pico hab needs a fix every hour, and you idle at 30uA in between, you average 48uA
[17:31] <DanielRichman> provided that it does take the 1 second that it promises
[17:31] <Lunar_Lander> is it able to work over 60000?
[17:32] <Dan-K2VOL> you mean 48uAH?
[17:32] <Lunar_Lander> no, the altitude
[17:32] <Lunar_Lander> oh you meant Daniel
[17:33] <Dan-K2VOL> it's the SIRF IV chipset, so presumably that would be common to many GPSs, and would be the limiting factor of the alt/speed limit
[17:33] <Lunar_Lander> yea
[17:34] <DanielRichman> nah 48uA average over the hour
[17:34] <DanielRichman> i.e. (65000 + 30*3599)/3600
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[17:35] <Dan-K2VOL> but what I think you would care about would be the amount of power used per hour, not the average rate, for computing runtime on fixed battery capacity
[17:36] <DanielRichman> yes indeed; although it is equally easy with average uA. I didn't bother working out the uAH per hour out.
[17:38] <fsphil-laptop> would be worth flying one as a backup, see how well it copes with the cold
[17:38] <fsphil-laptop> and altitude
[17:38] <fsphil-laptop> and being spun around :)
[17:38] <Lunar_Lander> yeah :P
[17:38] <Lunar_Lander> but when it is new, then lipoly.de doesn't sell it yet
[17:38] <fsphil-laptop> it's not terribly expensive either
[17:39] <fsphil-laptop> I sense a sparkfun order coming up :)
[17:39] <Lunar_Lander> :P
[17:39] <DanielRichman> not a bad idea to flight test it on a regular flight
[17:40] <fsphil-laptop> typical, funky connector :)
[17:40] <Lunar_Lander> :)
[17:41] <fsphil-laptop> maximum altitude 18288m
[17:41] <fsphil-laptop> well poop
[17:41] <Dan-K2VOL> damn
[17:42] <fsphil-laptop> somewhat related, in the connection circuit they have in the datasheet they have a 0.1uf and 1uf capacitor on the power rail. why both? I've seen this a few times
[17:47] <fsphil-laptop> 0.5mm pitch connector
[17:47] <fsphil-laptop> altitude limit wouldn't be a problem for a pico flight
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[17:53] <cuddykid> woo, got usb chdk working :)
[17:54] <cuddykid> but I'll never forgive chdk.. for what happened with HABE 1 lol
[18:01] <Laurenceb_> anyone want anything from linear tech?
[18:01] <Laurenceb_> im ordering some free samples - can have up to 5 parts
[18:03] <NigelMoby> Hmm nope think I'm ok this time.
[18:04] <Laurenceb_> linear have some seriously cool stuff :P
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[18:05] <Laurenceb_> theyve got a sepic convertor ic with peak power tracking and lipo charging built in
[18:06] <NigelMoby> Nice!!
[18:06] <Laurenceb_> you could say it was... sEPIC
[18:06] <NigelMoby> Lol
[18:06] <NigelMoby> Boom boom
[18:06] <Lunar_Lander> Boom! http://www.youtube.com/watch?v=AJCK7MhY6Dw
[18:06] <Lunar_Lander> xD
[18:20] <fsphil-laptop> any news on what happened bills flight? telemetry seemed to stop shortly after launc
[18:20] <fsphil-laptop> +h
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[19:06] <fsphil-laptop> would 100k and 10k resistor divider be too much resistance for the avr's adc?
[19:23] NigeyS (~Nigel@cpc5-cdif13-2-0-cust232.5-1.cable.virginmedia.com) joined #highaltitude.
[19:23] <Lunar_Lander> hi NigeyS
[19:23] <Lunar_Lander> btw
[19:23] <Lunar_Lander> how NOT to do hobby electronics: http://www.youtube.com/watch?v=XOGaERmY6QM&feature=related
[19:24] <NigeyS> hi kev :)
[19:24] <NigeyS> brb!
[19:27] <SamSilver_> I bought some rocket .... buit it went off ...
[19:29] <Lunar_Lander> oh
[19:29] <Lunar_Lander> like that robot in the video?
[19:29] <SamSilver_> I never got high scores for spelling but I made it work
[19:29] <SamSilver_> Hi Lunar_Lander
[19:29] <SamSilver_> how you doing?
[19:30] <Lunar_Lander> xD I'm good and you?
[19:30] <Lunar_Lander> did you see that video?
[19:30] <SamSilver_> I am watching now
[19:31] <Lunar_Lander> yea
[19:31] <SamSilver_> lol
[19:31] <SamSilver_> lolo
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[19:32] <Lunar_Lander> xD
[19:33] <SamSilver_> eina!!
[19:34] <Lunar_Lander> XD
[19:34] <Lunar_Lander> DESTROY
[19:34] <Lunar_Lander> :D
[19:34] <SamSilver_> that got to hurt!
[19:35] <Lunar_Lander> yeah
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[20:07] <Lunar_Lander> hi Dan-K2VOL
[20:08] <Dan-K2VOL> hi kev
[20:08] <Lunar_Lander> how are you?
[20:10] MikCx (~mikcx@5ac4fa05.bb.sky.com) joined #highaltitude.
[20:10] <Dan-K2VOL> bueno and you?
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[20:13] <Lunar_Lander> same here
[20:13] <Lunar_Lander> wait
[20:13] <Lunar_Lander> how not to do home electronics: http://www.youtube.com/watch?v=XOGaERmY6QM
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[20:28] <cuddykid> anyone know how to partition SD (FAT 16 formatting) on a mac (lion) - disk utility is throwing up formatting errors
[20:32] <griffonbot> Received email: Robert Darlington "Re: [UKHAS] Tiny GPS unit"
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[20:52] <fsphil-laptop> yay fttc: http://www.speedtest.net/result/1562671925.png
[20:56] radicalbiscuit (45a98524@gateway/web/freenode/ip.69.169.133.36) joined #highaltitude.
[20:57] <radicalbiscuit> what happened to Bill's balloon? hasn't been heard from in a bit (I am only just now checking in on it)
[20:57] <fsphil-laptop> was wondering that myself
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[20:57] <cuddykid> fsphil-laptop: http://www.speedtest.net/result/1562678166.png makes a change from my awful connection at home!
[20:57] <fsphil-laptop> there's been no word in the channel
[20:57] <fsphil-laptop> oh wow cuddykid
[20:58] <radicalbiscuit> There's another place where Bill hangs out for launches. I can't quite remember what it is...
[20:58] <fsphil-laptop> 64 times faster than mine atm!
[20:58] <cuddykid> the download is over 90mbps but for some reason drops to 60 odd just before the download bit stops! :S
[20:58] <cuddykid> lol
[20:58] <Lunar_Lander> the farm radicalbiscuit?
[20:58] <radicalbiscuit> ah, remembered: http://www.batc.tv/
[20:58] <Lunar_Lander> ah
[20:58] <Lunar_Lander> that you meant
[20:58] <fsphil-laptop> indeed
[20:58] <fsphil-laptop> I'm not sure he's a real farmer you know
[20:58] <fsphil-laptop> :)
[20:59] <Lunar_Lander> xD!
[20:59] <radicalbiscuit> got it. they have status updates there. Just go to member streams and then scroll to the bottom of the "online" list for WB8ELK
[20:59] <fsphil-laptop> what's the word on it?
[21:04] <radicalbiscuit> ok, so the transmitter stopped working, I think. Or at least one of them. APRS was still updating, but they decided to send a cutdown command, and just in time as waiting longer would have had it landing in "the wilderness".
[21:04] <radicalbiscuit> They'll be launching again next weekend it sounds.
[21:04] <fsphil-laptop> yorkshire?
[21:04] <fsphil-laptop> oh wait, US :)
[21:04] <radicalbiscuit> :P
[21:05] <fsphil-laptop> I think they're flying a 10m radio next week - there's a chance it can be received in the UK
[21:05] <radicalbiscuit> It landed in a tree 75 feet up. The chase team are expected to retrieve it.
[21:05] <radicalbiscuit> Yes, 10m next weekend
[21:06] <fsphil-laptop> 22 metres ... how the heck are they going to recover that
[21:06] <fsphil-laptop> other than cutting it down :)
[21:06] <radicalbiscuit> "slingshot equipment", it says
[21:06] <radicalbiscuit> but apparently the payloads in the tree have captured the attention of the locals
[21:07] <radicalbiscuit> They're spreading the joy of HAB to a few more people today :D
[21:07] <Lunar_Lander> :P
[21:08] <fsphil-laptop> "And after that our crops failed for many years"
[21:09] <radicalbiscuit> lol Everything seemed fine until they realized it was a *ham radio* on the device. Ruined everything
[21:09] <fsphil-laptop> haha
[21:09] <Lunar_Lander> xD why
[21:12] <Lunar_Lander> btw: http://www.ebay.co.uk/itm/BRITISH-Designed-Boilersuit-Coverall-Overalls-Workwear-/170563692180?pt=UK_Other_Men_s_Clothing&var=&hash=item6d6edafef1
[21:12] <Lunar_Lander> :)
[21:13] <fsphil-laptop> imagine if it landed here: http://www.bbc.co.uk/news/world-us-canada-14887428
[21:13] <radicalbiscuit> there is an urban myth that ham radios cause any kind of problem within vicinity
[21:14] <radicalbiscuit> there's a relevant comic I'm trying to find...
[21:15] <fsphil-laptop> When I used to have a CB (yea I know) I occasionally got a comment about interference on TV -- even though the antenna hadn't been connected to anything at that point
[21:15] <radicalbiscuit> here we go: http://home.comcast.net/~chnord/hamradio_Cartoon_1.jpg
[21:16] <radicalbiscuit> Exactly. If people know there's a transmitter of any sort in the area, suddenly all problems stem from its presence.
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[21:17] <fsphil-laptop> that's about right lol
[21:19] <Lunar_Lander> XD
[21:19] <Lunar_Lander> there once was a lot of protest against a cell phone tower
[21:19] <Lunar_Lander> increased readings and stuff
[21:19] <Lunar_Lander> they just said "We wonder what the readings would be next week after it has been activated"
[21:19] <radicalbiscuit> Nice
[21:20] <Lunar_Lander> xD
[21:21] <radicalbiscuit> g2g for now. I'll likely be back next weekend
[21:21] <radicalbiscuit> Farewell all!
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[21:21] <griffonbot> Received email: Steve Randall "Re: [UKHAS] Tiny GPS unit"
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[21:40] <cuddykid> Finally sorted chdk out! :D
[21:45] <daveake_> :)
[21:48] quemazon (~NATO@67-41-102-29.albq.qwest.net) joined #highaltitude.
[21:49] <Lunar_Lander> yay
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[21:53] <griffonbot> @adamcudworth: finally got chdk working now that PPC apps are no longer supported on mac #UKHAS #HABE2 [http://twitter.com/adamcudworth/status/130401959575437313]
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[21:54] <Lunar_Lander> hi NigeyS
[21:55] <NigeyS> hi kev
[21:59] <cuddykid> wooo.. just used chdk to take a still followed by video in 1 script :) .. now to get it working via power pulses sent from arduino and then camera for HABE2 is sorted :)
[22:00] <fsphil-laptop> how many swear words where involved?
[22:00] <cuddykid> far to many lol
[22:00] <cuddykid> it's taken me about 2hrs, but worth it in the end!
[22:01] <fsphil-laptop> how'd you manage it in the end?
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[22:02] <cuddykid> downloaded a modified version of chdk, then formatted SD card on camera, then popped into mbp and via terminal executed xattr command then it all worked!
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[22:03] <cuddykid> http://www.zenoshrdlu.com/kapstuff/zchdk.html
[22:05] <cuddykid> memory is a problem though - a 5 second video eats up over 8mb
[22:05] <fsphil-laptop> oooh a560 supported
[22:05] Action: fsphil-laptop hatches an evil plan
[22:05] <cuddykid> lol
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[22:06] <fsphil-laptop> well I need a working a560 first
[22:06] Action: fsphil-laptop put the plan back into the evil egg
[22:08] <Lunar_Lander> ROFL
[22:08] <cuddykid> I'm using the A570is
[22:09] <fsphil-laptop> wonder if that's any easier to get
[22:10] <cuddykid> got mine off ebay refurbished about 2 yrs ago now :P
[22:10] <fsphil-laptop> does it capture video when it's in Landscape mode?
[22:10] <SpeedEvil> Argh.
[22:10] <Lunar_Lander> btw
[22:10] <Lunar_Lander> http://upload.wikimedia.org/wikipedia/en/4/41/Penny_bigbangtheory.jpg
[22:10] <Lunar_Lander> :)
[22:11] <SpeedEvil> Running into your theoretical model limits is annoying.
[22:11] <SpeedEvil> Currently trying to work out in my head if you can feed induction motors distorted waves, if you keep the phase vector right.
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[22:15] <cuddykid> fspil_laptop: yeah
[22:16] <fsphil-laptop> good page - I didn't know that was possible at all
[22:17] <Laurenceb_> SVG is so epic
[22:17] <Laurenceb_> didnt realise you could dynamically link to png files
[22:18] <Laurenceb_> we need svg-html XD
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[22:24] <griffonbot> Received email: Ed Moore "Re: [UKHAS] Tiny GPS unit"
[22:44] <Laurenceb_> oh inkscape can convert to css
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[22:46] <fsphil-laptop> inkscape is both brilliant and annoying sometimes. but I do like it
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[23:44] <griffonbot> Received email: Oliver De Peyer "[UKHAS] Fwd: Oliver de Peyer: Enquiry about Xtend radiomodems"
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[23:47] <Laurenceb_> inkscape has encountered an error and will close now
[23:47] <Laurenceb_> with an ok button
[23:47] <Laurenceb_> well i guess thats that then
[23:48] <NigeyS> lol very ... helpful of it
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[23:53] <fsphil-laptop> all of habitat: http://imgur.com/5vdVS
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[00:00] --- Sun Oct 30 2011