highaltitude.log.20140428

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[00:52] <wd8mnv> not hearing B-47 on websdr
[00:56] <craag> wd8mnv: websdr takeoff is not great to the West
[00:56] <wd8mnv> k... thanks
[00:57] <craag> NW cw through to S is good
[00:57] <craag> W-SW-S has a local ridge in the way
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[07:07] <f5vnf> anybody have an idea what might be causing this http://screencast.com/t/FIbrJgnmY occurs about every 10 sec, i have no sdr connected , and in contestia gives loads of garbage, I do have a mobile mast quite close.
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[07:17] <Darkside> f5vnf: looks like ISM band garbag
[07:17] <Darkside> garbag*
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[07:17] <Darkside> like, a weather station, or power meter, or something like that
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[07:50] <f5vnf> Darkside: I had a feeling it may be something like that as it was not there when i first started running dl-fldigi and i notice that a dish has appeared on the mast , thanks for your reply.
[07:50] <f5vnf> bbl
[07:50] <Darkside> if its a dish, that wouldn't be it
[07:50] <Darkside> you don't see dishes for 434MHz often..
[07:51] <Darkside> if ever
[07:52] <f5vnf> this spike is occuring with no radio connection at all, just the computer sitting
[07:52] <f5vnf> there
[07:53] <Darkside> ah
[07:53] <Darkside> could be something internal then
[07:56] <f5vnf> ah, ok will try to snaffle the xyl's ( wifes) laptop and try it on that to see if i get the spike on there. ok got to go to earn some pennys
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[08:50] <craag> ASTRA launch postponed.
[08:51] <craag> Should happen within the next 2 days though.
[08:51] <mattbrejza> what was it this time?
[08:51] <craag> Err inter-human communication error
[08:52] <mattbrejza> oh lol
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[08:52] <mattbrejza> at least much esaier to debug then inter-IC comms errors
[08:53] <mattbrejza> especially onewire or i2c
[08:53] <craag> lol yes
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[09:00] <craag> I found a project using the KL25z boards as a 24MHz logic analyzer (with Open Logic Sniffer). Keep meaning to try it out
[09:01] <mattbrejza> saleae clone kinda thing?
[09:02] <craag> more like how to use DMA to turn the M0+ dev board into a poor man's salae
[09:02] <craag> And make it compatible with some existing (java) client software.
[09:05] <mattbrejza> the saleae software is probably better
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[09:06] <st88> Hi,
[09:07] <st88> I need help about rtty protocol
[09:07] <st88> Is there anybody who can help ma
[09:07] <st88> me ?
[09:10] <st88> I am writing code to transmit data from my arduino with a speaker
[09:11] <st88> but fldigi is unable to decode the transmission
[09:11] <st88> Any ideas ?
[09:12] <craag> st88: Are you generating tones on the arduino then?
[09:13] <st88> yes i can generate tone with my arduino
[09:13] <st88> i tested my speaker to generate a melody
[09:13] <st88> it's ok
[09:13] <craag> ok, and what do you hear when transmitting the rtty?
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[09:14] <st88> I tested to transmit rtty data with 250 ms pulse width
[09:14] <craag> Also - why are you trying to transmit it through a speaker?
[09:14] <st88> i check this with audacity
[09:15] <st88> i don't have any hf transmitter
[09:15] <craag> right... so what are you aiming for?
[09:16] <st88> My aim is to improve myself about rtty protocol
[09:16] <craag> Ok fair enough :)
[09:17] <gonzo_> 250ms, I assume you mean the character/byte rate, nit the individual bits width
[09:17] <craag> 250ms pulse width?
[09:17] <gonzo_> snap
[09:17] <craag> yeah, the bits will be a lot shorter
[09:17] <craag> (morning gonzo_ )
[09:17] <gonzo_> morning
[09:18] <gonzo_> 50baud, the bits will be 20ms
[09:18] <st88> do you want to see my code ?
[09:18] <st88> it's will be easier
[09:20] <st88> 250 ms for the individual bit width
[09:20] <gonzo_> not me, I've never used tha arduino
[09:20] <gonzo_> that is far to slow. You can probably hear the individual tiones
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[09:21] <gonzo_> 50bd shoudl souns like a fast diddle, almost a trill, of changing tones
[09:21] <st88> ok, but can you explain me why 20150 for baud rate in some code from Internet
[09:22] <craag> 20150us
[09:22] <craag> = ~20ms
[09:22] <gonzo_> baud = bits per second. so 50baud is 50 tone changes per sec
[09:22] <mattbrejza> 'The flaw affects Internet Explorer (IE) versions 6 to 11...' (11 is current) :/
[09:22] <st88> ok
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[09:28] <gonzo_> st88, what TX will you be using?? NTX2?
[09:30] <st88> yes, surely
[09:32] <craag> Ah, sending RTTY through a speaker is very different from sending it through an NTX2
[09:32] <st88> i tried with 20150
[09:32] <craag> 20150 microseconds?
[09:32] <st88> with my speaker
[09:33] <st88> 20150 us
[09:33] <craag> ok and?
[09:34] <st88> the speaker singing ;)
[09:34] <st88> but fldigi can't decode the transmission
[09:35] <craag> Have you compared how it sounds to example rtty recordings?
[09:35] <craag> You can also compare them in audacity
[09:36] <mfa298> how are you getting the audio into the computer ?
[09:36] <LeoBodnar> click T/R in dl-fldigi and it will start transmitting
[09:38] <st88> i a recording song with my integrate mike
[09:39] <mfa298> speaker to mic for decoding isn't the most effective method, it ca work but can get lots of extra interference which means it doesn't work always
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[09:39] <DL7AD> morning
[09:41] <st88> i tested to tramsmit the same data with fldigi. It seems that is not the transmission.
[09:42] <gonzo_> if you are going to use an NTX2, then eventually you wull be wanting a digital level out for the keying. So if you have an oscilloscope available, it would be better go straight for a digital output and look at the trace on the 'scope
[09:43] <gonzo_> you may have to add some inter-character delays, to allow you to frame up single characters on the scope, but you can see exactly what is beiong transmitted.
[09:43] <st88> yes with an oscilloscoppe it's a better solution
[09:43] <st88> i don't have it
[09:44] <gonzo_> borrow one??
[09:44] <gonzo_> it would be worth trying, as it really speeds up debugging
[09:44] <st88> not possible now
[09:45] <mfa298> faiing a scope a logic analyser would probably do for checking the timings if you were just sending logic high/low instead of tones.
[09:47] <mfa298> have you configured dl-fldigi to have the right shift and rtty settings for what you're sending (ie do the red lines match where the tones appear in the waterfall)
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[09:48] <gonzo_> and normal/reverse shift
[09:49] <st88> yes, settings infldigi are 50/170, 8(ascii), parity : none, 1 stop bit
[09:50] <st88> what is naormal/reverse shift ?
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[09:54] <gonzo_> it switches the high tome/low tone
[09:55] <st88> ok with my understanding it's inverse low and high level ?
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[09:59] <st88> is there any docs about rtty protocol, if no parity , ... ?
[10:00] <mattbrejza> http://en.wikipedia.org/wiki/File:Rs232_oscilloscope_trace.svg
[10:00] <mattbrejza> although thats inverted
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[11:22] <danielsaul> arko: Around?
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[12:28] <Laurenceb_> B-47 is working ok - so far
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[12:31] <DL7AD> hi
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[12:34] <UKC_WTM5> I've recovered my payload and going through the pictures now, they look really good!
[12:35] <gonzo_> was this the bridge cam thet went for a swim?
[12:36] <ulfr> nice
[12:38] <DL7AD> hi ulfr
[12:38] <ulfr> hi DL7AD
[12:41] <UKC_WTM5> LOL i have pictures of boats
[12:41] <UKC_WTM5> from the water
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[12:44] <Laurenceb_> B-47 at the right altitude for jet stream
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[12:50] <LeoBodnar> [00:44] <LeoBodnar> Curing large frequency drift when in Contestia mode: Right-click on "CTSTIA 8/250" at bottom left corner, set Receive synchronizer to 16
[12:51] <LeoBodnar> I wonder if you expand it even more would it sync without manual hunting or RxID
[12:55] <Laurenceb_> http://cdn.nwstatic.co.uk/gfsimages/gfs.20140428/06/06/hgt300.png
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[13:16] <DL7AD> B-47 must get at least to the mediterranean sea: http://en.wikipedia.org/wiki/1956_B-47_disappearance
[13:18] <Laurenceb_> someone stole the nukes
[13:26] <aadamson> LeoBodnar, when you do telemetry over aprs, you are using the base91 version, I can see that out at the end of the comment section
[13:27] <aadamson> how/when do you provide the names and equation information
[13:27] <aadamson> do you do that prior to launch so that you don't have to do that in flight?
[13:28] <aadamson> I can't see how you can do that in a compressed format per the spec?
[13:34] <Maxell> UpuWork: http://osrc.dfm.io/upuaut
[13:38] <daveake> "It seems like David is—or should be—friends with thecraag. "
[13:38] <daveake> lol
[13:38] <daveake> "There is also an obvious connection between David and stratodean, SalrJupiter, Rossen Goergiev, and Phil Crump."
[13:39] <daveake> uncanny :p
[13:42] <mfa298> apparently I'm an exceptional C++ coder and I work best at 7am.
[13:42] <mfa298> I'm sure the only thing I work best at doing at 7am is sleeping.
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[13:44] <daveake> ditto :)
[13:45] <daveake> It says I wrote some Javascript
[13:45] <daveake> Perish the thought
[13:45] <aadamson> and since when did *arduino* become its own language... curious
[13:46] <daveake> Yeah I think it's having trouble with timezones
[13:46] <daveake> I don't work at 4am :p
[13:47] <mfa298> I suspect timezones is part of the issue. I think I also had some commits from a Pi that hand't set it's time properly so they were way out
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[14:20] <craag> "mfa298 wrote C++ back in 1970, before even C was cool."
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[14:25] <daveake> Ah yes, 1970. Year zero for UNIX. That might have something to do with it ... :)
[14:28] <craag> ;)
[14:36] <mfa298> the one I did find looking through my repos was only 2013 (for the ukhas.net parser)
[14:36] <mfa298> so I was obviously way ahead of jcoxon for that idea :p
[14:37] <craag> heh
[14:40] <UKC_WTM5> Payload pics are uploading: http://maarseveent.com/private/payload/
[14:40] <UKC_WTM5> about 700 in total
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[14:45] <Laurenceb_> god i hate firefox
[14:45] <Laurenceb_> it just spewed about 8GB of crap into ram
[14:46] <Laurenceb_> killing my desktop
[14:46] <mfa298> you must be doing something wrong then.
[14:47] <Laurenceb_> nope, just firefox
[14:47] <mfa298> not had an issue like that and I have a lot of tabs open
[14:48] <mfa298> and I've known of people with even more.
[14:48] <mfa298> when I've tried chrome it's generally failed at a fraction of my open tabs.
[14:49] <mattbrejza> UKC_WTM5: flickr...
[14:50] <x-f> UKC_WTM5, just hilights..
[14:50] <UKC_WTM5> Will do soon, these are raw photos for people at University
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[14:50] <mattbrejza> i hope they can access the server directly rather than having to save each one individually...
[14:51] <UKC_WTM5> I will give them the FTP login yes :-)
[14:51] <mfa298> meh, "wget -m" to get them locally then use a standard viewer
[14:52] <UKC_WTM5> Could do that too, I'm sure they'll work it out
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[15:06] <DL7AD> g afternoon
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[16:54] <eroomde> second time's the charm
[16:55] <mfa298> or just close the tab as the quit message seems to imply
[16:55] <mfa298> if only everyone could learn how to use a real client :p
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[16:56] <eroomde> /wc
[16:56] <malgar> are there predictions for b-47?
[16:57] <daveake> /chocolate
[16:57] <mfa298> /disco
[16:58] <LeoBodnar> </chocolate>
[16:58] <malgar> ? :P
[16:58] <mfa298> now we just need /beer and it's a party :D
[16:59] <daveake> + /girls
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[17:47] <aadamson> woah, is this a new *high altitude* version of the *B*ees... :)
[17:48] <aadamson> experimental model dipped in some special sauce to provide greater altitude changed at geographically located targets or some such
[17:48] <arko> wow, curiosity sure got some dirt
[17:48] <arko> http://i.imgur.com/vxzHDWA.jpg
[17:49] <eroomde> needs a shower
[17:50] <arko> :( it was so clean
[17:51] <eroomde> are dust devils less prevelent where it is?
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[17:51] <LazyLeopard> All that effort in the clean room, and look what a mess it got into as soon as it was let out to play... ;)
[17:52] <arko> eroomde: not sure, good question
[17:52] <arko> good thing it doesnt have solar panels :)
[17:53] <LazyLeopard> Yeah. ;) Also means it can do astrophotography overnight. ;)
[17:53] <arko> https://www.flickr.com/photos/arkorobotics/5794057285/
[17:53] <arko> she was so clean
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[17:58] <eroomde> there's a great pleasure and satisfaction to be had from building hardware that has to survive in harsh environments
[17:58] <eroomde> it's where good design and craftsmanship really count
[17:59] <arko> very
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[17:59] <arko> i remember looking in that clean room when i was 12 thinking to myself, i want to be in there.. i want that job
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[18:00] <arko> that's the dream job
[18:01] <eroomde> it'd be fun to also be doing some of the self-contained tech research projects at jpl
[18:01] <eroomde> i.e. not something with a specific mission in mind, just working on things that might be useful for future missions
[18:02] <arko> there was so much more of that in the 90s
[18:02] <eroomde> that's what i had in mind
[18:02] <arko> lots of self-contained work still, but there were good small missions
[18:02] <eroomde> random labs where you could quietly get on with your thing
[18:02] <arko> my favorite one got cancelled :/
[18:02] <arko> SIM
[18:02] <arko> http://en.wikipedia.org/wiki/Space_Interferometry_Mission
[18:02] <arko> so much tech was invented because of this mission
[18:03] <arko> which contributed to so many others
[18:03] <arko> it kept getting delayed because the tech just didnt exist, so they had to go out an invent it
[18:03] <arko> once they did, they found they needed other things, went out and invented them
[18:03] <arko> one of my mentors in the high school robotics program i was in collected all the posters that said "launching in ####"
[18:04] <arko> launching in 1995
[18:04] <arko> launching in 1997
[18:04] <arko> etc etc
[18:04] <arko> it was pretty funny
[18:04] <fsphil> interesting ... I left dl-fldigi running with rsid enabled, and it got a fair few detections of CONTESTIA_8_250
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[18:05] <fsphil> $$B-47,15T,!P
[18:05] <fsphil> N_<R=:R/WN>T8&S4,A8,96&Z,7,
[18:05] <fsphil> cool!
[18:05] <fsphil> woo-woo
[18:05] <fsphil> that was well below my horizon
[18:05] <craag> wow nice
[18:05] <fsphil> $$B-47,15T,!P
[18:05] <fsphil> N_<R=:R/WN>T8&S4,A8,96&Z,7,
[18:05] <fsphil> er#
[18:05] <fsphil> B-47,155,221;53ZX!0427,5&.9*2 ,-3.71Q?,9*O2,7,-47,3.66,0*E5A0
[18:05] <eroomde> france is waking up to the distributed listener
[18:05] <arko> hah nice
[18:05] <eroomde> finally
[18:06] <arko> it flew away from fsphil again
[18:06] <fsphil> $$B-47,157,222005,140427,51.928,-3.7225,9429,8,-47,3.66,0*AEB1 <-- best one
[18:06] <arko> nice!
[18:06] <fsphil> was still fairly close
[18:09] <Lunar_Lander> cool
[18:11] <arko> https://www.youtube.com/watch?v=dk3oc1Hr62g
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[18:16] <malgar> my ublox outside and it is taking more than 10 min to get signal
[18:16] <malgar> is it normal?
[18:16] <eroomde> no
[18:17] <eroomde> is it unusual for your specific ublox too? or is the the first time you've fired it up?
[18:17] <eroomde> and is it getting a lock after 10 minutes or has it still not got one at all?
[18:18] <malgar> sometimes it gets lock after long awaiting
[18:18] <malgar> this afternoon about 15 min
[18:18] <malgar> could be the polystyrene box?
[18:19] <eroomde> probably not
[18:19] <eroomde> is it on a custom pcb?
[18:19] <malgar> no, the Upu's one
[18:19] <eroomde> his antenna too?
[18:19] <malgar> yes
[18:19] <eroomde> chipscale or something else?
[18:19] <malgar> I get the nmea stream, but no lock
[18:19] <malgar> chipscale?
[18:19] <eroomde> the little white rectangular antenna
[18:19] <malgar> yes
[18:20] <eroomde> about 1cm long, a couple of mm wide
[18:20] <eroomde> ok
[18:20] <eroomde> is there anything metalic near it?
[18:20] <eroomde> a wire or something
[18:20] <malgar> wires yes
[18:20] <eroomde> or better, do you have a photo of your setup?
[18:20] <malgar> sure
[18:20] <malgar> wait
[18:20] <eroomde> cool
[18:20] <eroomde> yep
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[18:22] <eroomde> i do have to go in about 8 minutes though
[18:24] <malgar> loading
[18:24] <malgar> wait
[18:24] <malgar> is coming
[18:25] <Laurenceb_> B-47 pwns
[18:25] <Laurenceb_> a much nicer altitude to cruise at
[18:25] <malgar> eroomde: in the meanwhile..
[18:26] <malgar> I can tell you that after it locks it has 7 or 8 sats in view
[18:26] <malgar> http://picpaste.com/IMG_20140428_202136-JDsh6Nzv.jpg this is the setup
[18:27] <eroomde> ah
[18:27] <eroomde> that's not the chipscale antenna :)
[18:27] <malgar> ok
[18:27] <eroomde> that should work better than that
[18:28] <eroomde> maybe try tilting the gps so the antenna is pointing up
[18:29] <malgar> ok...
[18:29] <eroomde> if possibly, maybe put in a smoothing cap across (and very near) the gps power pins
[18:30] <malgar> what is a smoothing cap cross?
[18:30] <eroomde> at the moment they've got to come down those long rails on the edge, past the radiometrix, and you're using the breadboard as an rf trace for the ntx2 aswell, which is probably not ideal
[18:30] <eroomde> though probably not a huge problem either
[18:30] <eroomde> smoothing cap = smoothing capacitor
[18:30] <malgar> ook
[18:30] <eroomde> across = putting it across the power rails
[18:31] <eroomde> so one leg to 3.3V, one leg to 0V
[18:31] <eroomde> up close to the gps
[18:31] <eroomde> anyway, afriad i have to go
[18:31] <eroomde> sorry i can't be more definitive
[18:31] <malgar> tnx
[18:31] <malgar> :)
[18:31] <malgar> see you
[18:31] <eroomde> ttfn
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[19:02] <Laurenceb_> wtf
[19:02] <Laurenceb_> http://hackaday.io/prize
[19:03] <Laurenceb_> Residents of these area are specifically excluded from entry: Italy, Quebec, Cuba, Iran, Myanmar, North Korea, Sudan, Syria,
[19:03] <Laurenceb_> lolz
[19:03] <Laurenceb_> damn Italy and Quebec
[19:03] <nats`> oO
[19:04] <Laurenceb_> even worse than north korea
[19:05] <Laurenceb_> 2014 Grand Prize is a trip into space on a carrier of your choice
[19:05] <Laurenceb_> wut
[19:07] <craag> "You also have a cash option of $196,418."
[19:07] <arko> i'll take that anyway
[19:07] <Laurenceb_> something doesnt make sense
[19:07] <arko> screw the trip to space
[19:07] <arko> "space"
[19:07] <Laurenceb_> yeah
[19:07] <Laurenceb_> wtf
[19:07] <arko> i'll just fly around the world and travel
[19:08] <Laurenceb_> maybe they mean "spaceship" 1 or something
[19:08] <arko> rather than get to "100km"
[19:08] <nats`> arko , going to space => more boobies :)
[19:08] <Lunar_Lander> XD!
[19:08] <arko> nats`: im pretty sure the money can attract more if thats your goal
[19:08] <nats`> good point someone needs to win this prize and an other needs to go to space :D
[19:08] <nats`> let's do a comparative study
[19:09] <Willdude> Oh god - I watched this again. My voice was so high https://www.youtube.com/watch?v=g7M905lBoxc
[19:09] <Willdude> I was so innocently useless at physics
[19:09] <arko> it so simple, take the money, get some virgin airlines credit, travel and see the world, invest the rest
[19:09] <arko> 20 years later take that money, go to space
[19:10] <arko> if you die on the flight, at least you lived a good life
[19:10] <arko> gg
[19:11] <craag> arko: Sounds like a plan! So... entering cubex?
[19:11] <arko> nah
[19:11] <arko> cubex is for fun
[19:11] <craag> It's very cool fun :)
[19:11] <arko> its also the work of a lot of other people including fsphil and upu
[19:11] <arko> :)
[19:12] <arko> and the help of leo who sat through my stupid questions about solar energy harvesting
[19:13] <arko> someone should make a hacked payload&rocket that actually goes to space
[19:13] <arko> but at that point you will be getting VC's throwing themselves at you
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[19:15] <arko> i will stop reading hackaday if the winning entry is an arduino
[19:15] <Upu> 4 fyl!
[19:15] <myself> might as well save yourself the time..
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[19:17] <arko> haha
[19:17] <arko> yoyo upu
[19:18] <Upu> evening
[19:19] <DL7AD> hiho
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[19:24] <gurgalof> I would take the trip to space, I mean you would be so famous afterwards that money aint a problem
[19:25] <gurgalof> + the boobies nats` is talking about
[19:29] <Reb-SM3ULC> preds for b47?
[19:30] <DL7AD> Reb-SM3ULC: give me a sec
[19:32] <DL7AD> Reb-SM3ULC: http://ready.arl.noaa.gov/hypubout/HYSPLITtraj_189860.kmz
[19:32] <DL7AD> http://ready.arl.noaa.gov/hypub/arlTraj.swf?client=gme-noaa&channel=OAR.ARL.HQ.HYSPLIT&dir=/hypubout/HYSPLITtraj_189860&data=/hysplit_metadata&ext=html
[19:34] <Reb-SM3ULC> :)
[19:35] <Reb-SM3ULC> mm, no caspian sea in the route. obviously route is going to change.. :)
[19:35] <Willdude> I would enter this hackaday thing but IDK what with
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[19:36] <LeoBodnar> enter without anything, you'd do better than most
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[19:38] <Willdude> LeoBodnar, do a balloon that visits more countries than you have
[19:38] <Willdude> Post video
[19:39] <Willdude> Get the aforementioned breasts.
[19:39] <LeoBodnar> i despise hackaday from the bottom of my heart
[19:39] <Willdude> LeoBodnar, it's some reading.
[19:39] <LeoBodnar> it's shit
[19:40] <Willdude> I don't have much to get excited about other than tomorrow, which is usually the same as yesterday so it helps
[19:40] <LeoBodnar> it's The Daily Mail of EE
[19:40] <Willdude> LeoBodnar, why? I get it's not nice but why don't you like it?
[19:41] <Willdude> LeoBodnar, the winner will probably be a Raspberry Pi controlled arduino connected to a base station via an AX.25 link that had to be reverse engineered from a TI calculator
[19:41] <LeoBodnar> it's website looking for content rather than content looking for the website
[19:43] <Willdude> I do also despise the daily mail. They get her pronouns mixed up all the time, seriously there was this one journalist writing and they changed pronouns half way through the article, when the subject identified as female.
[19:43] <Willdude> See what I did there?
[19:43] <Willdude> LeoBodnar, better reading material?
[19:44] <LeoBodnar> your thoughts
[19:44] <Willdude> What?
[19:45] <kc2pit> "The Daily Mail of EE." I hope you don't mind that I'm going to steal that.
[19:46] <Willdude> LeoBodnar, anything better to read?
[19:46] <arko> haha
[19:47] <Upu> the topic ?
[19:47] <nats`> Willdude AGILENT:FAIRCHILD:LINEAR TECH documentation :p
[19:47] <mikestir> not sure I agree with the EE part. There is very little engineering on hackaday - that would imply some actual design/understanding
[19:47] <fsphil> there's very little news in the daily mail either
[19:48] <jonsowman> but there's lots of racism
[19:48] <jonsowman> so that's ok
[19:48] <mikestir> and not bodging something together with an arduino and a programmable 0.1pF capacitor
[19:48] <Willdude> Upu, done
[19:48] <fsphil> it's ok, they start with "I'm not racist but..."
[19:48] <Willdude> What now?
[19:48] <Upu> go watch this https://www.youtube.com/watch?v=r9dqNTTdYKY
[19:48] <Upu> on why the Daily Mail is evil
[19:49] <Willdude> Parents read it, thefore I do.
[19:53] <Willdude> Whether I agree is a completely different matter
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[19:58] <Willdude> mikestir, a 500pf programmable capacitor could be good for my am receiver though :)
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[20:11] <Willdude> Upu, that was funny
[20:17] <Willdude> Upu, I didn't know about SWR as I wasn't a ham at the time, but why was it not necessary to have an aerial on the NTX2? Surely it would have meant a lot of reflected power?
[20:19] <Upu> so little power reflecting back its not going to damage anything
[20:19] <daveake> because <10mW of reflected power isn't going to harm anything
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[20:21] <Willdude> I see
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[20:29] <myself> it's about heat generated in the transistor body as it resistively dissipates the reflected power that it's trying to drive against.
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[20:57] <Reb-SM3ULC> LeoBodnar: what's new on your latest balloons?
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[21:00] <Eli> hi
[21:00] rwsq1 (~rwsq1@81.130.197.136) joined #highaltitude.
[21:00] <myself> high!
[21:01] <Eli> HAHAHA
[21:02] <Eli> I was on my local Am Radio Club website and they were talking about these balloons, but i still dont uderstand, what are they used for?
[21:03] <myself> fun, for one..
[21:04] <daveake> taking stuff up
[21:04] <amell> losing stuff
[21:04] <myself> practice
[21:04] <myself> engineering is its own reward :)
[21:05] <Eli> I was on my local Am Radio Club website and they were talking about these balloons, but i still dont uderstand, what are they used for fun?
[21:05] <Eli> sorry
[21:05] <Eli> so its just for fun?
[21:05] <amell> its for burning money as well
[21:05] <myself> some are launched to gather real data
[21:06] <Eli> Oh, so there is some pourpose?
[21:06] <eroomde> Eli: in my student group, it started as fun/learning
[21:06] <myself> my brother's satellite group, for instance needed to test some things far above the ground cheaper than going to real space
[21:06] <eroomde> 3 years later we did a project for the european space agency to simulate mars-lander parachutes
[21:07] <myself> so they measured a bunch of radio noise levels and stuff and played with their telemetry radio
[21:12] <WillTablet> eroomde: that sounds awesome.
[21:12] Action: WillTablet aims to go to Cambridge now
[21:13] <Eli> !me finds that really cool
[21:13] <Eli> :(
[21:13] <Eli> didnt work
[21:13] Action: WillTablet laughs
[21:14] <Eli> !?
[21:14] <Eli> ! -?
[21:14] <Eli> :(
[21:14] Action: WillTablet remembers those days when he was 12 and didn't get irc
[21:14] <eroomde> /me
[21:14] <Eli> 14*
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[21:15] Action: Eli finds that really coo
[21:15] <Eli> ahhhhh
[21:15] <Eli> thx eroomde
[21:15] <WillTablet> eroomde: was getting in to Cambridge tough?
[21:15] Action: Eli is gonna have a shower, BYE!
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[21:16] <eroomde> WillTablet: well, it's challenging i guess, but it's more about showing an interest in your subject whilst you're still at school
[21:17] <WillTablet> eroomde: yeah. Unfortunately I've sort of stopped caring about school, and I try and care, but it never works
[21:17] <eroomde> exam results are what get you in, plus an interview ehere you can talk about why you what to spend 4 years studying something
[21:17] <eroomde> no panic WillTablet
[21:18] <eroomde> you've got a couple of years before GCSEs?
[21:18] <WillTablet> Started two syllabuses formally and one informally
[21:18] <WillTablet> Start most next year.
[21:19] <fsphil> Curiosity is going native: http://www.db-prods.net/marsroversimages/Curiosity/2014/Sol613_MaHLI_m.jpg
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[21:20] <WillTablet> eroomde: did you do o levels? No offence
[21:20] <eroomde> gcses
[21:21] <gonzo_> gcse's came in around 86/87
[21:21] <eroomde> i did my gcses in 2005!
[21:22] <eroomde> oh no
[21:22] <eroomde> 2003
[21:22] <WillTablet> Oh
[21:22] <gonzo_> I did a ragbag of different exams
[21:23] <gonzo_> gce o levels at school, then gcse retale of english at college
[21:23] <gonzo_> (I'm an engineer I failes english. Pretty common0
[21:23] <fsphil> I did gcse's in the 90s
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[21:24] <fsphil> we had it tough back then, the internet was only just becoming popular :)
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[21:24] <malgar> this evening I did an extensive gps and range test
[21:25] <malgar> range very good: more than 15 km with a small tv antenna of the sdr dongle. Signal was very strong.
[21:25] <eroomde> i think a lack of internet back then was probs a good thing
[21:25] <fsphil> more people should do range testing
[21:25] <malgar> Using the yagi was impressive
[21:25] <eroomde> god knows how unproductive i'd have been if i had irc then
[21:26] <fsphil> eroomde: mixed
[21:26] <fsphil> I found it very difficult finding documentation
[21:26] <fsphil> local library had very little in the way of tech books
[21:26] <mikestir> we got the internet at home half way through my GCSE years in 1995 - there wasn't really anything on it
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[21:26] <fsphil> computer magazines where the main input before I got regular internet access
[21:27] <fsphil> but yes it became very distracting
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[21:27] <fsphil> access to more information but less able to use it :)
[21:27] <malgar> I still have problems with gps... it works but it looses the signal very frequently :(
[21:27] <malgar> still to understand the reason
[21:27] <mikestir> I distinctly remember google coming along in 1998 and thinking "meh"
[21:27] <mikestir> we were all using that 1blink search engine back then
[21:28] <malgar> I tried to put the antenna upside but nothing changes
[21:28] <fsphil> altavista forever (or until google)
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[21:28] <arko> lol
[21:28] <mikestir> I remember altavista was usually the one to use for technical stuff
[21:29] <arko> let me dogpile that for you
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[21:32] <eroomde> http://web.archive.org/web/20021201022954/http://www.geocities.com/kilobots/
[21:32] <eroomde> the earlist of my webpages i could find
[21:32] <eroomde> when i was 13 and into robotwars
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[21:33] <eroomde> i had a really good one on antweights but can't find it now
[21:33] <Babs____> Evening eroomde
[21:34] <eroomde> yo
[21:34] <stilldavid> eroomde: I really have nostalgia and want to sign your guestbook now
[21:34] <eroomde> if only
[21:34] <eroomde> sadly 'my thoughts' are not archived for posterity
[21:34] <stilldavid> [0,000,017] visits since...
[21:34] <stilldavid> ^ my old sites
[21:35] <Babs____> eroomde - found an iPhone based solution to the wheel balancing problem
[21:35] <Babs____> Mount the wheel
[21:35] <fsphil> I do hope B-47 stays in range for sunrise
[21:35] <DL7AD> sure it will
[21:35] <eroomde> http://web.archive.org/web/20021106061144/http://www.geocities.com/kilobots/buildguide.htm
[21:35] <eroomde> i have no recollection of what an iskra 800 is
[21:36] <eroomde> or who Martin G was
[21:38] <Babs____> on a flexible pole, with an iPhone running a seismometer app and bingo
[21:39] <LeoBodnar> "Kevlar What can I say?... it's ... the body on all formula 1 cars" hmmm
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[21:40] <Babs____> I just saw him write 'shade' as 'shad' and wrote it off at that point
[21:40] <WillTablet> eroomde: aww you were 13 once
[21:40] <amell> I used to have to access IRC via X25, this was late 80s though.
[21:41] <eroomde> yep WillTablet
[21:41] <eroomde> i was enamoured with kevlar
[21:41] <f5vkv> dl7ad: hi sven, do you have NOAA wind predictions for B-47 ? so that I can leave the antennas beaming on that direction ?
[21:41] <WillTablet> eroomde: ahh only 5 pages
[21:43] <WillTablet> Well, yknow one day I might look back on willdover.co.uk and go aww I thought bbbs were a good idea. Perhaps not so much my tumblr blog.
[21:43] <WillTablet> eroomde: its a real shame not much was archived
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[21:46] <eroomde> probably a good thing
[21:47] <mikestir> I seem to recall the earliest thing of mine that kicks about on the internet is an interface for connecting a casio digital diary to an amiga
[21:47] <mikestir> I haven't been able to find it in years though
[21:47] <Lunar_Lander> oh hi stilldavid
[21:47] <stilldavid> hiya Lunar_Lander
[21:48] <Lunar_Lander> how are you?
[21:48] <stilldavid> pretty good! wind is picking up here. how are you?
[21:48] <fsphil> baked beans month?
[21:49] <Lunar_Lander> I am OK, thanks
[21:49] <eroomde> i remember i lost my first antweight match in 2000 to this one: http://robotwars.wikia.com/wiki/Close_Shave
[21:52] <WillTablet> Heh
[21:52] <DL7AD> f5vkv: give me a second. i will do a new one now
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[21:53] <WillTablet> eroomde: heh.
[21:53] <WillTablet> eroomde: how old were you then?
[21:54] <DL7AD> f5vkv: http://ready.arl.noaa.gov/hypub/arlTraj.swf?client=gme-noaa&channel=OAR.ARL.HQ.HYSPLIT&dir=/hypubout/HYSPLITtraj_190808&data=/hysplit_metadata&ext=html
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[21:56] <Babs____> There is a rumour that Scorcese is going to direct a big screen version of the daveake - Willdude123 beaglebone episode
[21:56] <Babs____> Set over three parts
[21:56] <WillTablet> Babs____: what did Dave have to do with that?
[21:57] <WillTablet> I forgot
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[21:57] <Babs____> Daveake still remembers it I bet
[21:57] <Babs____> ;-)
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[21:59] <WillTablet> Men.
[21:59] <WillTablet> *meh
[21:59] <WillTablet> As far as I'm concerned it was necessary
[22:00] <Lunar_Lander> good night
[22:00] <WillTablet> To get me out of the ewww that's a complicated programming language phase
[22:00] <WillTablet> eroomde: did you work in a team?
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[22:18] <amell> B-47 is sure cold
[22:18] <amell> -52C ouch
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[22:19] <amell> -53C seems to be the min so far. Its sure dang cold up there at night
[22:20] <amell> I think the battery may be struggling as it dipped to 2.9V
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[22:56] <amell> how big does the chute need to be for a payload of 2kg?
[22:57] <amell> I think 50 inches should be safe
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