highaltitude.log.20121112

[00:00] <Randomskk> HD doesn't make huge odds
[00:00] <jonsowman> it takes loads longer and changes the landing spot by a mile or so
[00:00] <jonsowman> which is lost in the noise compared to inaccurate filling, payload mass, etc
[00:00] <arko> ok so the scenario-template.json has all this California data
[00:00] <arko> now in grabdata-cronjob.sh
[00:00] <jonsowman> there are two of those files
[00:00] <arko> i have
[00:00] <jonsowman> make sure you're changing the one in /web/hourly-predictions
[00:01] <arko> yeah
[00:01] <jonsowman> arko: the one-shot predictor at http://habhub.org/predict/ has a GFS/GFS HD select
[00:01] <jonsowman> if you want to experiment
[00:01] <arko> that one i modded first
[00:01] <jonsowman> but there's a good reason the normal GFS is selected by default
[00:01] <arko> jonsowman :)
[00:01] <arko> ok ok
[00:01] <arko> in grabdata-cronjob.sh I have:
[00:02] <arko> ${GETDATA} --lat=34.0 --lon=-115.0 --latdelta=10 --londelta=10 -v -f 180 2>${LOGFILE}
[00:02] <arko> anything else i need to modify?
[00:03] <jonsowman> i think that's all
[00:03] <arko> cool beans
[00:03] <arko> i hit run
[00:03] <arko> lets see what happens
[00:03] <arko> jonsowman: i used your habhub simulator for my last hab
[00:03] <arko> so thank you for your work :)
[00:03] <jonsowman> you're very welcome
[00:04] <jonsowman> i'm not the only contributor by any means
[00:04] <arko> and the team!
[00:04] <arko> :D
[00:04] <arko> programs like this make me happy
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[00:04] <jonsowman> as Adam said, should be even better soon
[00:04] <arko> i bought a server to run this 24/7 for doing statistical analysis of possible launch locations for my next one
[00:04] <arko> I look forward to it
[00:05] <jonsowman> cool :)
[00:05] <jonsowman> the plans are Monte Carlo prediction on the one-shot
[00:05] <arko> i plan to modify it and to add a few things but we will see
[00:05] <arko> ohH!!
[00:05] <arko> yesh
[00:05] <jonsowman> which can happily extend to the hourly
[00:05] <arko> that would be great
[00:05] <jonsowman> first we're concentrating on tidying, and I think rewriting the whole backend in python
[00:06] <jonsowman> since it's a bit of a mess of python/C with some PHP to handle communication with the webclient at the mo
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[00:09] <fsphil> would be nice if there was a singla command to run with coordinates, parameters and get the prediction out
[00:09] <fsphil> I'm not volunteering ;)
[00:10] <jonsowman> well evaded :P
[00:11] <arko> yeah
[00:11] <arko> when i saw that python/C im like
[00:11] <jonsowman> in theory we'll have a nice web based API that you can HTTP POST to or something
[00:11] <arko> uh oh
[00:11] <jonsowman> in theory that kind of exists at the moment but it's a) not documented and b) makes baby jesus cry
[00:11] <arko> a pure python system woulc be cool
[00:11] <arko> hahaha
[00:11] <arko> b) is true
[00:11] <mattbrejza> jonsowman: worked out my '3d blaa...' error yet? :P
[00:12] <jonsowman> no
[00:12] <jonsowman> that's really weird and i can't replicate it
[00:12] <mattbrejza> i even clean installed :/
[00:12] <RG_LZ1DEV> did you check for gremlins?
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[00:13] <jonsowman> right, sleep. good luck arko, let me know how it goes
[00:14] <arko> thanks for your help!
[00:14] <arko> rest well
[00:14] <jonsowman> no problem :)
[00:17] <DanielRichman> mattbrejza: 3d blaa error? Maybe try using pip install Pydap==3.0.1
[00:17] <DanielRichman> it gets upset if you don't use that version
[00:18] <DanielRichman> can't remember what the exact error was
[00:18] <DanielRichman> also going to sleep
[00:19] <mattbrejza> ah thanks DanielRichman
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[00:19] <DanielRichman> oops
[00:21] <arko> http://i.imgur.com/KADTF.jpg
[00:22] <arko> YEEEEHAA!!!!
[00:22] <arko> it worked!
[00:23] <SpeedEvil> :-)
[00:23] <arko> Thank you everyone!
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[00:41] <DrLuke> nice
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[02:30] <arko> anyone around?
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[05:58] <heathkid> valves on party balloons?
[05:58] <heathkid> did I miss something?
[06:01] <heathkid> sorry... hit my limit on my 3G account... no Internet since Sat. morning...
[06:02] <heathkid> that goodness for my Cradlepoint router!
[06:02] <heathkid> last month... had $260 in overage charges...
[06:02] <heathkid> <sigh>
[06:02] <heathkid> now it's paid for itself
[06:03] <heathkid> but a weekend without Internet is like an hour without Oxygen!
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[07:40] <arko> there's no root beer in england?
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[08:25] <arko> so cold outside right now :/
[08:26] <arko> although 6C is pretty cold for LA :P
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[08:27] <number10> where abouts do you live in LA arko
[08:28] <arko> are you around the area?
[08:28] <arko> O_O
[08:28] <eroomde> WHERE I AM GOING TO VISIT HIM WEEEEEEEE
[08:28] <arko> in the pasadena area
[08:28] <number10> no I stayed there for 6 months or so in the 80s
[08:28] <arko> haha
[08:29] <arko> morning to you eroomde
[08:29] <number10> marina del ray and redondo beach for a while
[08:29] <arko> oh nice
[08:29] <arko> i love redondo beach
[08:29] <number10> worked at xerox in el-segundo
[08:29] <arko> have a friend out there, throws awesome bbq's
[08:29] <arko> hah! sweet!
[08:29] <number10> when are you visiting eroomde
[08:30] <arko> eroomde: predictor.habexproject.org
[08:30] <arko> http://predictor.habexproject.org
[08:30] <arko> heh
[08:30] <arko> damn this is a cold night though
[08:30] <arko> i have cocooned myself with blankets
[08:30] <eroomde> nice arko
[08:31] <eroomde> good nerding
[08:31] <arko> :)
[08:31] <arko> so happy to have this tool now
[08:34] <costyn> arko: I see Barstow on your map... instant association to Fear and Loathing :)
[08:35] <arko> you
[08:35] <arko> have
[08:35] <arko> no
[08:35] <arko> idea
[08:35] <arko> my friends hate me
[08:35] <arko> because everytime we go out that way
[08:35] <arko> i end up quoting the movie.
[08:35] <costyn> hehehehe
[08:35] <arko> "we can't stop here.. this is bat country"
[08:35] <arko> :P
[08:35] <costyn> LOL
[08:36] <eroomde> i am amsued however that 6C counts as freezing
[08:36] <costyn> been to Perris and Lake Elsinore couple times
[08:36] <eroomde> to me that's a bit nippy
[08:36] <eroomde> trousers weather
[08:36] <arko> eroomde: yeah.. but we dont have great cold weather insulation
[08:36] <costyn> and drove from LA to Phoenix ; nice if dry bit of country; it boggles me how vast the USA is
[08:36] <arko> others do
[08:37] <arko> usa is pretty big
[08:37] <eroomde> :)
[08:37] <arko> texas isn't big though
[08:37] <arko> dont listen to them :P
[08:37] <costyn> hehe
[08:38] <costyn> Alaska is still winning right?
[08:38] <arko> yep haha
[08:38] <arko> eroomde: is there root beer in england>
[08:38] <arko> ?
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[08:44] <number10> yes arko you can get it from amazon of all places - nit seen it in the shops - but then I have not looked for it
[08:44] <number10> not
[08:44] <arko> hmm
[08:44] <arko> interesting
[08:44] <arko> i just heard this
[08:45] <arko> i was like waaaa?
[08:45] <arko> http://xkcd.com/1133/
[08:48] <costyn> arko: very clever :)
[08:48] <arko> ?
[08:48] <costyn> the xkcd
[08:48] <arko> oh!
[08:49] <arko> hah, sorry
[08:49] <arko> my memory is lame
[08:50] <costyn> I know the problem
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[10:30] <griffonbot> Received email: John Underwood "[UKHAS] Launch announcement Wednesday 14th November - Vortex / HelioSS"
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[10:35] <M0JCU> Who do I need to talk to about approval of a flight doc for habitat?
[10:38] <costyn> M0JCU: Randomskk, DanielRichman
[10:39] <costyn> and I'm forgetting someone ... :)
[10:40] <daveake> Or ask in #habhub
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[11:05] <kokey> hmmm, looks like it's possible to do hab tracking with aprs in south africa
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[11:14] <costyn> kokey: legally and/or technically?
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[11:20] <kokey> costyn: legally it seems
[11:20] <kokey> or rather, someone has done it that way, not sure if it was legal
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[12:07] <griffonbot> Received email: Michael Dawson "RE: [UKHAS] Launch announcement Wednesday 14th November - Vortex / HelioSS"
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[12:28] <griffonbot> Received email: David Akerman "[UKHAS] Re: Launch Announcement - Friday 9th November from Brightwalton"
[12:57] <UpuWork> bot doesn't do tweets any more
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[13:01] <eroomde> small mercies
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[13:42] <Laurenceb> http://www.ebay.com/itm/160682660742
[13:43] <costyn> Laurenceb: holy crap
[13:45] <costyn> I like how they provide super simple instructions on how to use it, as if you'd use this as say a computer mouse or keyboard hehe. No mention that this thing can kill you easily
[13:48] <costyn> and they say its breakdown voltage is 2.5v, but the text seems to imply you can hook it up across the terminals of a 12v battery? heh
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[14:01] <russss> that's a really high discharge current for a supercap
[14:01] <russss> usually super/ultracapacitors are slow discharge for battery backup and so on
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[14:11] <pierrouk> greetings!
[14:11] <fsphil> hiya pierrouk
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[14:13] <pierrouk> BBS - This take me back! Why no Forum? Still looking from some data module advice..
[14:14] <fsphil> there's a mailing list -- but IRC tends to work better I think :)
[14:14] <costyn> pierrouk: there's a wiki, does that count?
[14:16] <pierrouk> wiki=nearly :) IRC is great though, I agree.. Are there any data module specialists here? Looking for a bit of advice in respect of a 433/434 data module
[14:16] <fsphil> the module of choice is the NTX2 normally
[14:17] <fsphil> very simple to interface with, but does need a receiver that can do SSB
[14:18] <pierrouk> Saw that, I have and 817 and 847 so Ok with that one... However, can't see too many differences with this module FM-TX2-433F-3V, which is considerable cheaper
[14:19] <fsphil> got a link to that?
[14:20] <Darkside> pierrouk: the NTX2 works very specifically because of it's internal architecture
[14:20] <Darkside> not many other modules work the same way
[14:21] <fsphil> aah right, the TX2 is the wideband version
[14:21] <Darkside> yeah you don't want that
[14:21] <pierrouk> Ebay >>>> http://www.ebay.co.uk/itm/FM-Transmitter-module-300m-range-FM-TX2-433F-3V-/320714934283?pt=LH_DefaultDomain_3&hash=item4aac19880b
[14:21] <Darkside> that'l just have more deciation
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[14:21] <Darkside> deviation*
[14:22] <Darkside> wait hang on
[14:22] <pierrouk> Datasheet >>>http://www.quasaruk.co.uk/acatalog/TX2RX2.pdf
[14:22] <Darkside> waaaaaait a minute
[14:22] <Darkside> isnt this just the new NTX2?
[14:22] <gonzo_> do the TX2 give direct varicap drive, or ttl?
[14:22] <fsphil> it's the old one I think
[14:22] <fsphil> it might actually work
[14:22] <fsphil> but perhaps not as stable
[14:23] <pierrouk> I'm hoping it would at £2!
[14:23] <costyn> heh... datasheet is from 2004
[14:23] <Darkside> http://radiometrix.com/content/tx2
[14:23] <gonzo_> I have some RX2 on the test bench. Trying to mod the data slicer cct to work with narrow (well, 850kHz shift data) for commanding
[14:24] <fsphil> 433.9 MHz is the noisiest part of the ISM band
[14:24] <costyn> pierrouk: http://ava.upuaut.net/store/index.php?route=product/product&path=71_63&product_id=62 if you have a bit more money to spend
[14:24] <Darkside> still, at 2 pounds you may as well get one and try it
[14:24] <costyn> pierrouk: http://ava.upuaut.net/store/index.php?route=product/product&path=71_63&product_id=65 if you're experienced in electronics/microcontroller and don't mind a bit more challenge
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[14:25] <RG_LZ1DEV> have you seen those
[14:25] <RG_LZ1DEV> http://dx.com/p/arduino-apc220-wireless-rf-modules-w-antennas-usb-converter-143011?item=39
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[14:26] <pierrouk> I like the idea of keeping it all in the hands of Arduino
[14:26] <costyn> RG_LZ1DEV: thos are nice pics and it looks well made
[14:26] <costyn> pierrouk: what do you mean?
[14:27] <pierrouk> And the RFM module WFM
[14:27] <costyn> the RFM22b works perfectly with arduino
[14:28] <RG_LZ1DEV> does GSFK and you get two for that price
[14:28] <RG_LZ1DEV> seems pretty good
[14:28] <costyn> RG_LZ1DEV: no indication of TX power
[14:28] <pierrouk> The control system for the balloon I'm building is constructed around an Arduino core, interfacing with that is a bonus
[14:28] <RG_LZ1DEV> yeah
[14:29] <pierrouk> LZ1DEV: Which two?
[14:29] <craag> RG_LZ1DEV: The issue with those is that you're not going to get the redundancy in the listeners. And it's minimum bitrate is 1200bps, still rather quick, so no idea whether it will work at 30km alt.
[14:29] <craag> *30km range.
[14:29] <costyn> pierrouk: as are most of the ones we build. the ntx2 is trivially easy to connect to the Arduino, RFM22b is a bit more work but there's lots of examples and people on here who can help you
[14:30] <costyn> craag: I'm guessing that if you can get 57600bps at 800M at ground level it's probably got enough power to be illegal while airborne in the UK
[14:31] <craag> costyn: Good point!
[14:31] <pierrouk> costyn: That's great, thanks for the summarised results. There is too much to go wrong in a first build to risk on my poor interface to a less than supported device :/
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[14:31] <RG_LZ1DEV> costyn: http://dx.com/p/utc903-wireless-serial-communication-module-155749?item=8 :P
[14:32] <costyn> RG_LZ1DEV: +18dBm heh
[14:32] <costyn> pierrouk: sure, a first build can be tricky and you want to keep down costs
[14:33] <RG_LZ1DEV> costyn: RX/TX :D
[14:33] <costyn> RG_LZ1DEV: nice, like the rfm22b
[14:33] <RG_LZ1DEV> no no
[14:34] <RG_LZ1DEV> you actually just gook it to the serial rx/tx
[14:34] <RG_LZ1DEV> and thats it :)
[14:34] <costyn> RG_LZ1DEV: ah yea
[14:35] <costyn> RG_LZ1DEV: how do you configure it? "Allows to set via PC or MCU" is a bit vague :)
[14:35] <RG_LZ1DEV> no idea
[14:35] <costyn> MCU = microcontroller?
[14:35] <DrLuke> it's really handy that 16000000/1024 results in a whole number
[14:35] <DrLuke> costyn: yes
[14:35] <DrLuke> MicroController Unit
[14:36] <costyn> DrLuke: thx
[14:36] <costyn> someone page Laurenceb ... it's got an STM chip on it :P
[14:36] <Laurenceb> wut?
[14:37] <costyn> Laurenceb: http://dx.com/p/utc903-wireless-serial-communication-module-155749?item=8 <-- some module RG_LZ1DEV found on dx.com has an STM8
[14:38] <Laurenceb> which ic?
[14:38] <costyn> not sure
[14:38] <Laurenceb> A7102C
[14:38] <DrLuke> that antenna looks pretty huge
[14:38] <Laurenceb> interesting
[14:39] <costyn> oh you mean the radio IC, yea just skimming the datasheet now
[14:39] <gonzo_> it'll opnly be a bit of wl/4 wire
[14:39] <DrLuke> did you mean to say lambda/4? :P
[14:40] <DrLuke> or maybe even »/4
[14:40] <fsphil> hey that works
[14:40] <DrLuke> oh man I love unicode
[14:41] <gonzo_> very pretty!
[14:41] <RG_LZ1DEV> how can i do tex in irc
[14:41] <gonzo_> I'll stick to good old acsii
[14:41] <DrLuke> I'm sure somebody made a plugin for some client
[14:41] <gonzo_> ascii even
[14:42] <costyn> RG_LZ1DEV: heh tex to utf8 :)
[14:42] <Laurenceb> i calculate something like 20hz frequency resolution
[14:42] <Laurenceb> looks useful
[14:42] <costyn> Laurenceb: for the A7102C ?
[14:43] <Laurenceb> yes
[14:43] <Laurenceb> make that 10hz
[14:43] <costyn> pretty cheap too http://www.ebay.com/itm/5pcs-A7102C-Chip-NRF905-CC1101-NRF24L01-CC2500-315MHz-433MHz-QFN32-8bit-ADC-/110937645272
[14:45] <Laurenceb> NRF905 CC1101 NRF24L01 CC2500
[14:45] <Laurenceb> lulwut
[14:45] <Laurenceb> yeah about 14hz resolution
[14:45] <Laurenceb> so 7 hz or so error max at any target frequency
[14:46] <Laurenceb> good enough for slow rtty
[14:46] <Laurenceb> page 28 of datasheet
[14:46] <Laurenceb> looks similar to si4432, not quite as clever
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[14:47] <RG_LZ1DEV> bla bla lamba lamba
[14:47] <RG_LZ1DEV> ah failed
[14:47] <RG_LZ1DEV> i meant »
[14:47] <DrLuke> ugh, the nrf905
[14:47] <DrLuke> I'm currently having a lot of woes with it
[14:48] <RG_LZ1DEV> » » »
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[14:55] <wibble_> Sorry... bit of a dumb question coming up (I've just started looking into this!)
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[14:55] <wibble_> is the reason that you can't use an NRX2 on the ground simply down to the signal strength?
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[14:55] <DrLuke> oh god it's so satisfying to have your avr count the seconds, and it is perfectly in sync with my music
[14:56] <gonzo_> the nrx2 will be very insensitive and still very wide band, for the signals we are listening to. So it will hear lots of extra noise
[14:57] <fsphil> also the NRX2 is basically an FM receiver
[14:57] <gonzo_> especially as this is a busy bit of spectrum
[14:57] <gonzo_> I suspect the data slicer is optimised for the full bandwidth of the RX too
[14:57] Nick change: Tygrys^ -> Tiger^
[14:58] <wibble_> Just wondering what the cheapest option is to receive the tracking data
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[14:59] <DrLuke> wibble_: RTLSDR dongles
[14:59] <DrLuke> together with a simple yagi from ebay you will pay around 40¬-50¬
[15:00] <wibble_> Thanks. Will take a look
[15:00] <costyn> wibble_: http://ava.upuaut.net/store/index.php?route=product/product&path=71_63&product_id=70
[15:01] <DrLuke> Weird, is it possible that ITOA won't take unsigned long integers as an argument?!
[15:02] <DrLuke> When I declare the very same variable as a char, it works like a charm, with unsigned long, I get this: x%%%%%%%%%%%%%%%%å
[15:02] <fsphil> you might need to use ltoa
[15:02] <wibble_> Thanks. Will the EZCAP module then feed realtime into dl-fldigi ?
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[15:03] <fsphil> ooh that's a bit od
[15:03] <fsphil> +d
[15:03] <fsphil> what value is in the variable DrLuke?
[15:03] <DrLuke> fsphil: 0UL
[15:03] <fsphil> zero
[15:03] <fsphil> strangerer
[15:04] <DrLuke> fsphil: this is how I declare it: unsigned long seconds = 0UL;
[15:04] <fsphil> I sometimes get snprintf() doing weird things unless the datatypes are exactly what it expects
[15:05] <fsphil> try ltoa
[15:05] <DrLuke> it doesn't kno Itoa
[15:05] <fsphil> what happens if you cast it to int?
[15:05] <DrLuke> how?
[15:06] <fsphil> itoa((int) seconds, ....
[15:06] <DrLuke> ah, works
[15:06] <fsphil> does it need to be a long?
[15:06] <DrLuke> yep
[15:06] <DrLuke> safe is safe
[15:06] <DrLuke> I don't need to print it though
[15:07] <DrLuke> I just found it really really strange
[15:07] <fsphil> yea, there's a bug there somewhere
[15:08] <DrLuke> I'll just make it int
[15:08] <fsphil> the way I think it should work, the (int) is implied
[15:08] <DrLuke> and have it increment another variable everytime it overflows
[15:08] <DrLuke> I don't think the battery will last 1,8 days anyways :P
[15:08] <DrLuke> 1.8, sorry
[15:09] <RG_LZ1DEV> ¾ × À × d³
[15:10] <fsphil> well you'd hope to get it back before that :)
[15:10] <RG_LZ1DEV> excellent
[15:10] <jonsowman> RG_LZ1DEV: ..?
[15:10] <RG_LZ1DEV> jonsowman: how are you :)
[15:10] <jonsowman> not too bad I suppose. yourself?
[15:11] <RG_LZ1DEV> great i suppose, thanks for askign
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[15:13] <RG_LZ1DEV> jonsowman: did you read my little unicode test?
[15:13] <jonsowman> er, no I don't think so
[15:13] <jonsowman> what was it?
[15:13] <RG_LZ1DEV> 3/4 x pi x d^3
[15:13] <costyn> RG_LZ1DEV: do you copy/paste characters or do you have a unicode input onscreen keyboard?
[15:13] <jonsowman> oh I see
[15:13] <RG_LZ1DEV> costyn: auto replace
[15:14] <costyn> RG_LZ1DEV: heh, wel it didn't work just now :)
[15:14] <jonsowman> that wasn't meant to be the volume of a sphere was it?
[15:14] <gonzo_> does assumwe the other user's clients can handle it
[15:15] <RG_LZ1DEV> jonsowman: yeah, exacept its r rather than d
[15:15] <RG_LZ1DEV> and the fraction is wrong
[15:15] <jonsowman> and it's 4/3 not 3/4 ;)
[15:15] <jonsowman> heh
[15:15] <RG_LZ1DEV> :)
[15:15] <RG_LZ1DEV> well spoted
[15:15] <RG_LZ1DEV> »
[15:16] <RG_LZ1DEV> » H299.7 megameters
[15:17] <fsphil> megameters, great word
[15:18] <costyn> it is... not much use or it in daily life
[15:18] <RG_LZ1DEV> battery at 7%
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[15:18] <RG_LZ1DEV> how unfortunate
[15:19] <RG_LZ1DEV> fsphil: what about terameter?
[15:20] <fsphil> mega is better. "My balloon got to 30 MEGAmeters"
[15:21] <costyn> fsphil: that does sound sexy
[15:21] <costyn> although unlikely
[15:22] <fsphil> eclipse day, "Partly cloudy with a chance of rain"
[15:23] <costyn> fsphil: 30 megameters = around geosync orbit
[15:23] <fsphil> ah right
[15:24] <costyn> my balloon got to 0.035 megameters doesn't sound so great any more
[15:24] <fsphil> 30 supermeters then
[15:24] <costyn> now you're just being silly
[15:24] <fsphil> of course :)
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[15:25] <costyn> my balloon got to 35 million millimeters
[15:25] <costyn> now that sounds impressive or no?
[15:25] <Randomskk> costyn: 35 megamillimeteres
[15:25] <fsphil> yes that's much better
[15:26] <costyn> haha
[15:26] <griffonbot> Received email: Matthew Brejza "[UKHAS] Launch announcement tomorrow (Tuesday) 13th, 6am - PICO @ Southampton"
[15:26] <fsphil> oooh pico
[15:26] <gonzo_> agh another midweek launch
[15:27] <gonzo_> will have to see if I can wire my colinear to the rx
[15:27] <fsphil> a mid-week pico is brave
[15:27] <gonzo_> which I can remote ctrl
[15:27] <mattbrejza> and at 6am
[15:27] <fsphil> I left my rig at home all connected up for remote control
[15:28] <griffonbot> Received email: Anthony Stirk "Re: [UKHAS] Launch announcement tomorrow (Tuesday) 13th, 6am - PICO @ Southampton"
[15:28] <daveake> I knew I shouldn't have pulled my aerial down
[15:29] <mattbrejza> well now there are three this week :P
[15:29] <UpuWork> Oh hi matt :)
[15:29] <costyn> wow that is impressively tiny
[15:29] <mattbrejza> yo
[15:29] <mattbrejza> the balloon is rated to 18km, so we shall see
[15:29] <Randomskk> you mean 1.8m >_>
[15:29] <costyn> I think we need a new class, nano
[15:29] <UpuWork> oh in that case I shall see
[15:30] <UpuWork> whats the flight path
[15:30] <UpuWork> and how long does it last on an AAA ?
[15:30] <mattbrejza> NE
[15:30] <Randomskk> costyn: pico is smaller than nano
[15:30] <UpuWork> right definitely listening then
[15:30] <UpuWork> btw
[15:30] <Randomskk> which was one of my original objections to people saying pico :P
[15:30] <UpuWork> uBLOX MAX7's are out soon
[15:30] <mattbrejza> dunno, i put a battery in at 1 and its still going
[15:30] <UpuWork> power consumption is way down
[15:30] <costyn> Randomskk: you're right of course. /me cowers in shame
[15:31] <costyn> UpuWork: will you be selling the max7's as soon as they come out?
[15:31] <UpuWork> ofc
[15:31] <mattbrejza> 1.8V version too?
[15:31] <UpuWork> well
[15:32] <UpuWork> 2 versions
[15:32] <UpuWork> takes 1.65 to 3.6v in
[15:32] <mattbrejza> ah nice
[15:32] <UpuWork> 10Hz update etc etc
[15:32] <UpuWork> 22mA acquisition
[15:32] <UpuWork> tracking 16.5mA
[15:32] <UpuWork> Power save..... 4.5mA
[15:32] <UpuWork> that version doesn't have a TCXO
[15:33] <UpuWork> the TCXO version only works at 3.3V
[15:33] <mattbrejza> tcxo giving?
[15:33] <UpuWork> more stability at lower temps allegedly and the ability (the on MAX6's anyway) to use cyclics > 1s
[15:33] <UpuWork> however 4.5mA for a 1 sec cyclic who cares
[15:34] <UpuWork> all rated to -40'C
[15:34] <costyn> Randomskk: so yea, there has been millinut, but where are the micro and nano trackers :)
[15:34] <UpuWork> and the version with the TCXO also has a built in SAW filter on the antenna
[15:34] <Randomskk> costyn: and what scale is being measured?
[15:34] <Randomskk> because to be honest
[15:35] <Randomskk> I don't think we've broken milli yet ;P
[15:35] <Randomskk> 'centi' really
[15:35] <griffonbot> Received email: Matthew Brejza "RE: [UKHAS] Launch announcement tomorrow (Tuesday) 13th, 6am - PICO @ Southampton"
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[15:37] <costyn> Randomskk: if you purely look at tracker weight, then yea, we're still at centi
[15:37] <number10> and I was going to call my small one nano anu
[15:37] <costyn> Randomskk: but if we look at balloon size/volume, erm... well not sure
[15:37] <Randomskk> I was looking at length scale of trackers
[15:37] <costyn> number10: that's cute :)
[15:37] <Randomskk> weight is a good one too
[15:37] <Randomskk> you could say we're at millikilograms
[15:37] <Randomskk> and thus be happy with 'milli'
[15:37] <mattbrejza> is the ARHAB records for total weight?
[15:38] <mattbrejza> payload weight?
[15:38] <Randomskk> who knows
[15:38] <mattbrejza> should probably just check myself
[15:38] <mattbrejza> why are ARHAB even in 'charge'
[15:38] <mattbrejza> UKHAS should overthrow
[15:38] <Randomskk> UKHAS already have our own records
[15:38] <daveake> ^^ Upu's plan
[15:38] <Randomskk> neither is any more an authority
[15:38] <jonsowman> but they are _much_ fussier
[15:38] <Randomskk> the authority is granted by the people who submit to the records and refer to them, really
[15:39] <mattbrejza> we could DDOS the website?
[15:39] <UpuWork> lol
[15:39] <UpuWork> keith is ok just a little picky
[15:39] <Randomskk> probably that's not the best way to go about it
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[15:39] <UpuWork> Just play by their rules and sit back and smile knowing most of the records belong to the UK anyway
[15:40] <number10> have you got your payload docs approved mattbrejza
[15:40] <mattbrejza> yea
[15:41] <UpuWork> put an AA on it Matt
[15:41] <UpuWork> oh no wait
[15:41] <UpuWork> its a latex isn't it
[15:41] <UpuWork> be interesting to see if you can get it to float
[15:42] <mattbrejza> yea we dont intend to do that
[15:42] <mattbrejza> also a AA wont fit in the case
[15:42] <mattbrejza> the current lightest payload on arhab is 88.9g :P
[15:42] <UpuWork> oh yes sorry forgot it was in a pregnancy testing kit
[15:42] <mattbrejza> indeed
[15:42] <jonsowman> lol
[15:43] <UpuWork> I know I submitted spava at 39g
[15:43] <fsphil> ooh that payload
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[15:46] <costyn> mattbrejza: what microcontroller are you using?
[15:46] <mattbrejza> cc430f5135
[15:46] <costyn> cool
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[15:50] <gonzo_> looking at the shape of it, how were you supposed to do the pregnancy test?!!
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[15:51] <jonsowman> can we not go there
[15:51] <Randomskk> you pee on the part with the tracker, holding the part with the battery
[15:51] <Randomskk> have you never done one before, seriously
[15:51] <UpuWork> lol
[15:51] <gonzo_> hehe, was that a joke in itself?
[15:51] <Randomskk> joke?
[15:51] <jonsowman> :|
[15:51] <jonsowman> why
[15:51] <gonzo_> the not going 'there'
[15:52] <gonzo_> or just my warped mind
[15:52] <jonsowman> just you
[15:53] <craag> mattbrejza: Need any onsite help with launch/chase/tracking tomorrow morning?
[15:54] <mattbrejza> well it should all be covered, until something goes wrong oc
[15:54] <mattbrejza> it depends whether you want to be up at 5am
[15:54] <mattbrejza> <5am
[15:54] <mattbrejza> although to track >6am
[15:56] <jcoxon> what are flight predicts?
[15:56] <craag> I wouldn't mind tbh. It would be interesting to see. I've thinking of trying some early morning launches myself.
[15:56] <mattbrejza> NE from southampton, 2hrs or so, going 60km or so
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[15:57] <mattbrejza> also while we have the astra tracker on the roof, we dont have anyone to control it, but the transmitter shouldnt drift too much
[15:57] <daveake> 10p says it lands inside the M25 :)
[15:58] <mattbrejza> hope not, will be a long drive
[15:58] <daveake> Plenty of gas you said; should be ok
[15:58] <mattbrejza> gonna have to make sure its properly filled
[15:58] <daveake> yep. they've been known to exceed that 1.8m
[15:59] <Randomskk> :P
[15:59] <daveake> :)
[15:59] <mattbrejza> once
[15:59] <daveake> I'll track from here, assuming I get up early enough
[15:59] <daveake> Steve had 1 or 2 get pretty high
[15:59] <mattbrejza> oh forgot steve did them
[15:59] <daveake> Yes I forget the altitudes he got
[16:00] <daveake> I'd be tempted to come down to help but I think I'ce exceeded my HAB chasing budget for the month :D
[16:00] <mattbrejza> craag: ill just send an email to check its fine you being around in the morning (shouldnt be a problem)
[16:01] <mattbrejza> dw about it daveake, it seems like we have 4 people now
[16:01] <daveake> and I'm still recovering from Friday. Long day that
[16:01] <craag> mattbrejza: Thanks, that would be great. I'll try not to get in the way!
[16:01] <daveake> I'm pretty well placed to track here anyway
[16:01] <mattbrejza> yep, if you dont mind 6am starts
[16:01] <daveake> I'll see what I can do :)
[16:02] <gonzo_> I'll wet the bed and get up early for a change
[16:03] <mattbrejza> lol
[16:03] <mattbrejza> although tracking at 7am will still be a great help
[16:03] <daveake> That's dedication to the cause
[16:03] <gonzo_> hehe
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[16:32] Action: LazyLeopard wonders how likely a six-am-that's-well-before-sunrise launch is to be cancelled...
[16:34] <griffonbot> Received email: John Underwood "Re: [UKHAS] Launch announcement Wednesday 14th November - Vortex / HelioSS"
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[16:51] <lacerta-mart> Hi! We are two italian friends (lacerta-vitt / lacerta-mart). We want to ask you how to send text messages with an arduino using a generic cellphone
[16:52] <eroomde> we don;t tend to use cellphones anymore as the tracking radios are better
[16:53] <eroomde> and also generic cellphones nowadays are rubbish
[16:53] <eroomde> however, there are still relics around from the mobile phone tracking era
[16:53] <eroomde> like me
[16:53] <eroomde> so, the old nokias had a serial port in their bottom
[16:53] <lacerta-vitt> ok we tought to use the cellphone as a backup
[16:54] <eroomde> this had a serial interface in it called FBUS
[16:54] <eroomde> i last did this with an old nokia 3310
[16:54] <eroomde> seimens did some easily hackable designs too
[16:55] <eroomde> i just did a quick google and found this page explaining fbus
[16:55] <eroomde> http://www.embedtronics.com/nokia/fbus.html
[16:55] <eroomde> so, you will have to connect this to your arduino's serial port, and write a library that does what is described on that page
[16:56] <eroomde> fbus can be a little emotional, however, and we found it to be not particularly reliable
[16:56] <lacerta-vitt> ok thanks for the infos , do you know where can buy a phone with FBUS?
[16:56] <eroomde> you might have more luck nowadays using something like this:
[16:56] <eroomde> https://www.sparkfun.com/products/10138
[16:57] <eroomde> lacerta-vitt: ebay
[16:57] <eroomde> i do not have a complete list of the phones which had fbus i am afriad
[16:57] <lacerta-vitt> ok thanks
[16:57] <eroomde> but a lot of the old ones of that era did
[16:58] <lacerta-vitt> the problem with GSM modules is that they are expensive :D
[16:58] <eroomde> yes indeed!
[16:58] <eroomde> you should be able to get these really old phones almost free
[16:58] <daveake> Old Ericssons like the T68i and T38m can be used. Normal AT commands not FBUS
[16:59] <lacerta-vitt> let me check a an extremely olf pgone i found yesterday
[16:59] <lacerta-vitt> i red about the T68i but can't find them anymore around
[16:59] <daveake> Or GSM modules - Wavecom did one, or there's the Siemens T35
[16:59] <eroomde> yeah i used the T68i for one too
[16:59] <eroomde> and it was a bit simpler
[17:00] <eroomde> but they are hard to find nowadays
[17:00] <eroomde> or at least were when i last looked
[17:00] <daveake> I have one :)
[17:00] <daveake> free issue from a friend
[17:01] <eroomde> useful
[17:01] <daveake> I've got a complete tracker wuth GSM backup - using a wavecom - ready to fly, but haven't got round to flying it yet
[17:02] <eroomde> the predictor and DL are such nowadays that radio does the job very reliably
[17:02] <eroomde> though it was not always thus
[17:02] <daveake> It does
[17:02] <eroomde> actually if you are in italy with fewer listeners, there is more of an argument to use it
[17:03] <daveake> Indeed. I keep landing within earshot of number10 so my flights are still received after they've landed :)
[17:03] <eroomde> :)
[17:03] <eroomde> you'll get him one of these days
[17:03] <daveake> Only a matter of time
[17:03] <lacerta-vitt> yes i think me and lacerta-mart will be the only listeners
[17:05] <lacerta-vitt> and in italy using radios on an unmanned craft is not legal
[17:11] <lacerta-vitt> we would also like to ask you which pressure sensor to use
[17:12] <wibble_> https://www.sparkfun.com/products/10138
[17:12] <wibble_> doh copy and paste fail :|
[17:13] <MiniMail> -.-
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[17:31] <arko> morning
[17:31] <MiniMail> haha.
[17:31] <MiniMail> :)
[17:31] <MiniMail> morning :P
[17:31] <MiniMail> 19:31 here
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[17:32] <arko> heh
[17:32] <MiniMail> :)
[17:32] <MiniMail> Europe (L) ;)
[17:33] lacerta-mart (4f297146@gateway/web/freenode/ip.79.41.113.70) joined #highaltitude.
[17:33] <arko> it's almost bed time for yall
[17:34] <MiniMail> yupp
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[17:34] <Laurenceb> http://maps.google.co.uk/?ll=51.415107,0.36404&spn=0.005065,0.009645&t=h&z=17
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[17:44] <arko> is this where the treasure is burried?
[17:45] <jcoxon> evening all
[17:45] <arko> evening
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[17:51] <Dan-K2VOL> AFTERNOON ALL
[17:52] <Dan-K2VOL> whoops wasn't watching there
[17:53] <daveake> THAT'S OK
[17:55] <jcoxon> hey Dan-K2VOL
[17:55] <jcoxon> how are the pico experiements going?
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[18:02] <number10> hi jcoxon: building a PIC pico board at the moment
[18:04] <number10> hope you dont mind - I will call it a nano seems to go well with paload call Anu
[18:04] <jcoxon> number10, haha why would i mind
[18:04] <jcoxon> PIC-O
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[18:04] <daveake> nanu nanu
[18:05] <number10> I suppose that a good alternative
[18:05] <number10> soldering wires onto smd chips isnt fun
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[18:24] <Lunar_Lander> hello
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[18:31] Nick change: daveake_ -> daveake
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[18:53] <DrLuke> http://i.imgur.com/3Rvgy.png
[18:53] <DrLuke> success!
[18:53] <DrLuke> I think I'll use a second avr for taking pictures more frequently
[18:53] <Lunar_Lander> cool
[18:53] <Dan-K2VOL> nice DrLuke
[18:53] <Lunar_Lander> what camera module?
[18:54] <DrLuke> linksprite somethingsomething from sparkfun
[18:55] <DrLuke> it's really hard to find a good camera module out there
[18:55] <Lunar_Lander> ah I got that too in my lab
[18:55] <DrLuke> the 10$ one sparkfun carries interested me more at first
[18:55] <DrLuke> but damn, it's undocumented as hell
[18:56] <DrLuke> and the datasheet is just awful
[18:58] <Lunar_Lander> yea
[18:58] <Lunar_Lander> IIRC the people wrote in the comments that there is no info how to interface it
[18:58] <DrLuke> yeah I'll use a second avr for all the datalogging
[18:59] <DrLuke> well, there was some in the datasheet
[18:59] <DrLuke> but all the settings registers weren't documented
[18:59] <DrLuke> and I couldn't find any product website or datasheet
[18:59] <DrLuke> that's what ultimately turned me off of it
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[19:02] <eroomde> just took apart some old thing pullked from a military avionics rack
[19:02] <eroomde> got out of it
[19:02] <eroomde> 2 x dc-18ghz coaxial relays
[19:02] <Lunar_Lander> DrLuke, yea
[19:02] <Lunar_Lander> the linksprite works well over UART I think
[19:02] <eroomde> 1 x 1-2ghz vco, 1 x 6.5-9.5ghz vco
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[19:03] <eroomde> some pin diode fast switching signal router thing, presumably for diversity
[19:03] <eroomde> and some other bits and bobs
[19:04] <eroomde> not a bad haul
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[19:21] <mattbrejza> no-one will miss anything on the tracker?
[19:22] <Lunar_Lander> how do you mean
[19:22] <Lunar_Lander> ?
[19:24] <DrLuke> nice eroomde
[19:26] <mattbrejza> if i clear data from friday and everything else
[19:26] <Lunar_Lander> ah
[19:28] <daveake> fine by me Matt
[19:29] <mattbrejza> cool
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[19:42] <fsphil> morning
[19:42] <nigelvh> Morning
[19:42] <nigelvh> Though, I don't suspect it's morning for you.
[19:44] <fsphil> it is :) I've gone all ozzy for a bit
[19:44] <nigelvh> Ah, happens to the best of us occaionally.
[19:44] <fsphil> indeed. I'll get better soon :)
[19:44] <DrLuke> haha
[19:45] <DrLuke> the linksprite is weird
[19:45] <DrLuke> when I set the baudrate to 38400, the software it comes with can't read a picture and gets frame errors...
[19:46] <nigelvh> I'm not familiar with the linksprite, but does it use a usb->serial converter?
[19:47] <fsphil> aah I have one of those cameras, not used it yet though
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[19:48] <DrLuke> nigelvh: nope
[19:49] <DrLuke> it outputs raw serial, and I use a rs232 connector to connect it to my PC's serial port
[19:49] <nigelvh> Hmm, well there goes my guess. I've had some issues with USB to serial converter trying to go much faster than 19200.
[19:49] <DrLuke> (I was amazed as hell when I found out I even had one, lol)
[19:49] <nigelvh> I had to add one to mine. Had the header on the motherboard, but nothing on the back.
[19:50] <DrLuke> well 640x480 pictures over 9600 baud take their sweet time...
[19:50] <DrLuke> ah
[19:50] <DrLuke> and it worked?
[19:51] <nigelvh> Yeah. Lots of relatively modern motherboards don't have the port in the main block, but will have a header, so you can attach a connector to that.
[19:51] <DrLuke> seems pretty silly to me
[19:51] <nigelvh> If it saves them 10cents then it's worth it to them because most consumers don't use it.
[19:51] <DrLuke> what's the point to add the level converter and all the hardware to it if you don't even connect the header
[19:51] <DrLuke> meh
[19:52] <DrLuke> well they're right about the not using part
[19:52] <DrLuke> I only use it because my avr dev board has one
[19:53] <nigelvh> I only use mine to communicate with some headless mini-servers I've got.
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[19:53] <DrLuke> http://i.imgur.com/k7QZz.jpg
[19:53] <DrLuke> I love how it bulges
[19:54] <DrLuke> got a slight wide angle
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[19:54] <nigelvh> Yep, yay wide lenses
[19:54] <DrLuke> look, you can see the curvature of earth!
[19:54] <DrLuke> sometimes it bends upwards though
[19:54] <DrLuke> that's perfectly normal
[19:55] <fsphil> glitch in the matrix
[19:55] <fsphil> I don't think anyone has flown a linksprite yet, be interesting to see how it works
[19:56] <fsphil> do you know if it has an IR filter DrLuke?
[19:56] <DrLuke> oh?
[19:56] <DrLuke> it says so all over the lens
[19:56] <nosebleedkt> eventuall i paid 110e to the customs. From 190e.
[19:56] <DrLuke> here, take this: ¬
[19:56] <fsphil> lol
[19:57] <nosebleedkt> i sent one friend to do the some customs work and that cost 80e less
[19:57] <nosebleedkt> lol
[19:57] <fsphil> the C328 camera I have doesn't have the IR filter, and plants all appear red instead of green
[19:57] <DrLuke> lol
[19:58] <DrLuke> must be interesting as hell
[19:58] <fsphil> makes earth look like mars
[19:58] <DrLuke> I wonder what the TV output is good for on the linksprite
[19:59] <RG_LZ1DEV> ssdv from mars
[19:59] <DrLuke> is that some composite signal output?
[19:59] <RG_LZ1DEV> btw, if anyone has C328 camera they dont need, ill be happy to take it off your hands
[19:59] <fsphil> I believe it is composite NTSC
[20:00] <daveake> Missing IR and NTSC. There's no hope for the colour fidelity
[20:01] <fsphil> sad but true
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[21:14] <DrLuke> http://www.youtube.com/watch?v=60an32_Xses
[21:14] <DrLuke> awesome
[21:16] <nigelvh> Whoa
[21:17] <arko> awesome
[21:18] <arko> i just wish rather than the lab noise they put on pink floyd or something
[21:18] <arko> :P
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[22:57] <Upu> ping navrac
[23:00] <Lunar_Lander> hi Upu
[23:00] <Upu> hi Lunar
[23:01] <Lunar_Lander> how are you?
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[23:02] <Upu> tired off to bed I think
[23:03] <Lunar_Lander> yea
[23:03] <Lunar_Lander> good night!
[23:03] <Lunar_Lander> hi Dan-K2VOL
[23:03] <Upu> nght
[23:03] <Dan-K2VOL> hi Kev
[23:03] <Dan-K2VOL> night upu
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[23:22] <Lunar_Lander> Dan-K2VOL, how are you?
[23:23] <Dan-K2VOL> I am well, quite busy, working on the cleanup of the iridium tracker for public release
[23:23] <Dan-K2VOL> it's going well
[23:24] <Dan-K2VOL> I'm added a command line parser to the serial terminal so you can test it and configure it.
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[23:32] <Lunar_Lander> Dan-K2VOL, that's cool
[23:32] <Lunar_Lander> hi to finland MiniMail
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[23:34] <fsphil> I'd love one of those iridium modules but I can't justify it yet :)
[23:34] <Dan-K2VOL> i hear ya
[23:35] <Dan-K2VOL> I'm using one that was donated to me with expired Delorme service
[23:35] <Dan-K2VOL> it still talks to the satellites, but the Iridium Gateways are grumpy about it and just return error codes :-)
[23:35] <Dan-K2VOL> good for testing code though
[23:36] <fsphil> haha
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[23:42] <meatmanek> how much does a really cheap iridium module cost?
[23:42] <Dan-K2VOL> what country are you in?
[23:42] <meatmanek> USA
[23:42] <Dan-K2VOL> $150
[23:42] <meatmanek> hmm that doesn't really seem that expensive
[23:43] <Dan-K2VOL> it's not that expensive
[23:44] <fsphil> jnoss1 o nspacenear seems to be having ... issues
[23:44] <Randomskk> haha
[23:44] <Randomskk> you reckon
[23:44] <Dan-K2VOL> though you have to get service too meatmanek
[23:45] <Randomskk> Dan-K2VOL: are these the rockblock ones?
[23:45] <Dan-K2VOL> rock7mobile.com has a really good deal going for modem, service and circuit
[23:46] <Dan-K2VOL> I'm developing software to work with the rockblock first, though it will also work with any iridium board
[23:46] <Dan-K2VOL> upu is helping with hardware
[23:48] <meatmanek> so I assume you'd use this sparingly
[23:48] <meatmanek> given that each transmission costs you like 10c
[23:48] <Dan-K2VOL> depends on your funding :-)
[23:48] <meatmanek> haha
[23:48] <meatmanek> I assume a hobbyist would use this somewhat sparingly
[23:48] <Dan-K2VOL> but yeah, most people wouldn't set it to send one every minute
[23:49] <Dan-K2VOL> this is more for long duration flights that are ok with 5 minutes between telemetry points
[23:49] <Dan-K2VOL> or more
[23:49] <meatmanek> yeah.
[23:49] <fsphil> what size per packet?
[23:49] <Dan-K2VOL> and may go beyond the range of normal trackers
[23:49] <meatmanek> 50 characters, fsphil
[23:49] <Dan-K2VOL> 270-300bytes
[23:49] <meatmanek> at least in this plan http://rockblock.rock7mobile.com/?page_id=103
[23:49] <fsphil> hey not bad, you could include some history then
[23:50] <fsphil> fill the gaps between packets
[23:50] <Dan-K2VOL> they bill by the byte
[23:50] <Dan-K2VOL> :-/
[23:50] <fsphil> aah
[23:50] <fsphil> maybe not then
[23:50] <fsphil> just the minimum binary data then
[23:50] <fsphil> maybe even just the difference from the previous one
[23:51] <Dan-K2VOL> and anyway the longer packets are more prone to fail in marginal signal conditions, though with my software they're always retransmitted eventually
[23:51] <Dan-K2VOL> yeah a good compression method would be recommended
[23:51] <meatmanek> fsphil yeah you could also do just the relevant LSB or something
[23:51] <Dan-K2VOL> we meant to with white star, but had more money than time on that front
[23:51] <fsphil> indeed
[23:52] <Dan-K2VOL> it's very nice to have uplink control of your system too, change data rates, camera on/off whatever you want
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[23:52] <fsphil> transmit a reallly tiny image
[23:53] <Dan-K2VOL> gosh really tiny
[23:53] <fsphil> 32x16 L(
[23:53] <fsphil> :)
[23:54] <meatmanek> speaking of which, does anybody have any experience with getting live-ish imagery from a balloon?
[23:54] <Dan-K2VOL> hahahaha
[23:54] <fsphil> a little bit yea :)
[23:54] <Dan-K2VOL> Take it away Phil!
[23:54] <fsphil> the last one meatmanek: http://ssdv.habhub.org/
[23:54] <Dan-K2VOL> meatmanek, you have met the premier balloon imagerier of the world, fdphil
[23:54] <Dan-K2VOL> fsphil
[23:54] <meatmanek> neat
[23:55] <fsphil> it's a little system I wrote to send jpegs in a way that don't require all the data to get an image
[23:55] <meatmanek> and you're doing what, APRS?
[23:55] <meatmanek> oh nm
[23:55] <jcoxon> yay, soundmodem now can control my rig
[23:55] <fsphil> this is 8-bit rtty
[23:55] <meatmanek> 300 baud on 434mhz
[23:55] <Dan-K2VOL> phil made an awesome entire image system from cam to decoder software
[23:55] <fsphil> although there is no reason why it couldn't be done via aprs
[23:55] <meatmanek> who are all the receivers
[23:56] <Dan-K2VOL> the normal UK balloon telemetry volunteer listeners
[23:56] <Dan-K2VOL> they don't have aprs
[23:56] <meatmanek> how sad
[23:56] <fsphil> yea, we are not allowed to use amateur radio from balloons
[23:56] <meatmanek> aah
[23:56] <fsphil> so the ukhas guys made their own network
[23:56] <Dan-K2VOL> but a similar distributed data network system for balloon telemetry has been created by the community
[23:56] <meatmanek> really neat
[23:56] <meatmanek> anyway do you have code/a writeup somewhere?
[23:57] <fsphil> the advantage also that we can experiment with things like images
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[23:57] <fsphil> there's not a proper document yet meatmanek, but there's a wiki page linked from http://www.sanslogic.co.uk/ssdv/
[23:57] <fsphil> and the code lives at https://github.com/fsphil/ssdv
[23:58] <meatmanek> awesome, thanks
[23:58] <fsphil> there are a couple of people interested in adapting it for aprs
[23:58] <fsphil> although I'm not sure that would go down well in the amateur radio world :)
[23:58] <meatmanek> maybe, maybe not
[23:59] <fsphil> where I live nobody would notice, the aprs frequencies are pretty much empty
[23:59] <meatmanek> they're primarily concerned with number of packets bouncing around at any one time iirc
[23:59] <meatmanek> though aprs.fi might be a little offended at the amount of data coming in, depending
[23:59] <fsphil> I'm sure it could be done such that site slike aprs.fi can filter it out
[23:59] <fsphil> it might already, I don't really understand APRS-IS
[23:59] <meatmanek> yeah I guess
[00:00] --- Tue Nov 13 2012