highaltitude.log.20150825

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[00:06] <Lunar_Lander> ulfr, ah ok
[00:06] <Lunar_Lander> that would be nice, yes
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[00:09] <ulfr> I have a weird issue, I need to put up a tethered balloon that needs to survive in a desert, with a lot of heat for 3 days
[00:09] <ulfr> Would a latex do, or would the UV destroy it in that time?
[00:10] <Lunar_Lander> yea I think UV could do some damage in that time
[00:10] <ulfr> So perhaps, an polyethelyn balloon rather?
[00:12] <Lunar_Lander> sounds good
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[00:13] <ulfr> Ok, thanks!
[00:13] <Lunar_Lander> you're welcome
[00:13] <Lunar_Lander> good night :)
[00:13] <ulfr> good night
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[05:55] <SM0ULC> Not every day a balloon with HF drops by!
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[05:59] <SA6BSS> just km from your qth :)
[06:00] <SM0ULC> yepp
[06:00] <SM0ULC> no radio running though
[06:02] <SpacenearUS> New vehicle on the map: 03BACON_chase - 12http://tracker.habhub.org/#!qm=All&q=BACON_chase
[06:04] <SM0ULC> maybe worth some time to make telemetryimport to habhub
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[06:26] <SpacenearUS> New position from 03RPF-A1 after 038 hours silence - 12http://tracker.habhub.org/#!qm=All&q=RPF-A1
[06:33] <SpacenearUS> New position from 03RPF-A2 after 038 hours silence - 12http://tracker.habhub.org/#!qm=All&q=RPF-A2
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[06:37] <SpacenearUS> New position from 03RPF-S1 after 038 hours silence - 12http://tracker.habhub.org/#!qm=All&q=RPF-S1
[06:37] <SpacenearUS> New position from 03RPF-S2 after 038 hours silence - 12http://tracker.habhub.org/#!qm=All&q=RPF-S2
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[06:48] <SpacenearUS> New vehicle on the map: 03RPiVan_chase - 12http://tracker.habhub.org/#!qm=All&q=RPiVan_chase
[06:54] <SA6BSS> ve3kcl trajectory http://ready.arl.noaa.gov/hypubout/175341_trj001.gif
[06:56] <SpacenearUS> New vehicle on the map: 03RPF-CHASE-ALTO_chase - 12http://tracker.habhub.org/#!qm=All&q=RPF-CHASE-ALTO_chase
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[07:02] <SpacenearUS> New vehicle on the map: 03B7+1234_chase - 12http://tracker.habhub.org/#!qm=All&q=B7%2B1234_chase
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[07:35] <SpacenearUS> New vehicle on the map: 03my car_chase - 12http://tracker.habhub.org/#!qm=All&q=my%20car_chase
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[08:06] <fsphil> http://i.imgur.com/h7yOjE5.jpg
[08:06] <fsphil> nore more pulseaudio
[08:06] <fsphil> peace in our time
[08:07] <fsphil> -re
[08:07] <eroomde> how did you kill it?
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[08:08] <fsphil> the new fldigi has UDP and TCP audio input options
[08:08] <eroomde> oh sorry i wasn't looking proppa
[08:08] <fsphil> gqrx can output over UDP
[08:08] <eroomde> yeah i see
[08:08] <fsphil> no faffing around with PA changing and breaking the signal
[08:08] <eroomde> which sdr are you using?
[08:09] <fsphil> airspy for this
[08:09] <fsphil> I'd still like one app to do it all
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[08:10] <eroomde> mmm
[08:10] <eroomde> i might get a blade
[08:10] <eroomde> just so i can try and receive some of the s-band sats
[08:10] <fsphil> yeah those are good
[08:11] <fsphil> hackrf's got the range but probably not as sensitive
[08:11] <eroomde> well i don't mind knocking up a pre-amp
[08:12] <eroomde> i'll look at that too
[08:12] <fsphil> what's up in the s-band?
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[08:13] <eroomde> for example, some of the qb50 things that dhiren mentioned
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[08:16] <infaddict> thx fsphil this could be useful. i currently use SoundFlower to route Gqrx audio to fldigi.
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[08:17] <eroomde> ha, there is one man managing both the osx ports for homebrew of gnuradio and kicad
[08:17] <eroomde> i hope he has a safety word for that kind of thing
[08:17] <fsphil> lol
[08:18] <fsphil> I know gnuradio is no fun to build
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[08:19] <eroomde> yes i remember putting it on the ubuntu boxes with the build script
[08:19] <eroomde> it said something like
[08:19] <eroomde> -------- THIS MAY TAKE SOME TIME ----------
[08:20] <eroomde> which even in capital letters was quite an understatement
[08:20] <SpacenearUS> New position from 03RPF-N1 after 0310 hours silence - 12http://tracker.habhub.org/#!qm=All&q=RPF-N1
[08:20] <eroomde> brb
[08:20] <SpacenearUS> New position from 03RPF-N2 after 0310 hours silence - 12http://tracker.habhub.org/#!qm=All&q=RPF-N2
[08:21] <fsphil> yeah even with -j4 it took a while
[08:21] <fsphil> before failing
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[08:22] <russss> I am pro at building it from source now
[08:26] <WB8ELK> If anyone is in western France my long duration floater balloon may possibly be heard today during daylight hours. 433.92 MHz AM modulated DominoEX16
[08:26] <fsphil> oooh
[08:26] <fsphil> I'm not sadly
[08:26] <SpacenearUS> New vehicle on the map: 03SKYCADEMY - 12http://tracker.habhub.org/#!qm=All&q=SKYCADEMY
[08:27] <fsphil> I'll keep an eye out anyway
[08:28] <fsphil> WB8ELK: does it transmit continously?
[08:28] <fsphil> in daylight
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[08:29] <WB8ELK> Yes..10 second DominoEX16 every 5 seconds or so
[08:29] <WB8ELK> Might be heard in southern England depending on the float altitude but the prediction is showing west central France.
[08:30] <WB8ELK> But have to listen in AM mode since this is a very simple transmitter using a SAW module.
[08:31] <Vaizki> how wide is it then?
[08:31] <Vaizki> not that I will catch it from Finland...
[08:31] <WB8ELK> It can drift a bit so might want to tune between 433.90 and 433.98 but most reports had it around 433.914 MHz.
[08:32] <WB8ELK> about 300 Hz wide centered on about 1080 Hz.
[08:32] <eroomde> russss: on osx?
[08:33] <WB8ELK> solar powered only
[08:33] <russss> eroomde: yup
[08:33] <eroomde> oh cool
[08:33] <eroomde> well if this homebrew tap barfs then i might come running to you
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[08:35] <SpacenearUS> New vehicle on the map: 03HB9RSU _chase - 12http://tracker.habhub.org/#!qm=All&q=HB9RSU%20_chase
[08:36] <eroomde> anyone know how accessible the bladeRF's FPGA is with the free versions of whichever dev tool is provided by its mfr?
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[08:54] <fsphil> how's fpga support on linux these days?
[08:54] <fsphil> it was pretty dire last I looked
[08:55] <eroomde> i have not done anything Serious (tm) but the altera tools worked fine when i did the chiphack course
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[08:56] <eroomde> and there are some nice verilog simulators and output visualisors (gtk-wave) that mean you can develop a lot of the stuff outside the fpga tools
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[08:56] <eroomde> and the altera tools had command-line versions so you could use makefiles easily
[08:56] <eroomde> make sim
[08:56] <eroomde> make target
[08:57] <eroomde> there really is a lot of emphasis on sim to test the code as actually doing the target configuration takes ages
[08:57] <eroomde> not like developing for a micro
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[09:01] <PE2BZ> !flights
[09:01] <SpacenearUS> 03PE2BZ: Current flights: 03Skycademy Test Flight 10(a223), 03Cirrus Launch 1 10(4f35), 03Nimbus Launch 1 10(7de1), 03Stratus Launch 1 10(ce8a), 03AltoCumulus Launch 1 10(8139), 03SP3OSJ 144.7MHz RTTY100/450/7n2+APRS+CW 10(781e), 03float-1 10(0330)
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[09:05] <PE2BZ> !payload a223
[09:05] <SpacenearUS> 03PE2BZ: Payload 03SKYCADEMY 10(a223) 03$$SKYCADEMY - 03Old PITS - 03434.523 MHz USB 03RTTY 300/600Hz ASCII-8 none 2
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[09:08] <infaddict> customary pics of peoples legs and payload boxes from RPF so far ;-)
[09:09] <chimpusmaximus> Managed to rig two LoRa gateways up so might be able to pick up
[09:09] <eroomde> good luck
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[09:12] <fsphil> oh are they launching?
[09:12] <fsphil> winds here are non-existant today
[09:12] <infaddict> 10:15 planned fsphil
[09:12] <infaddict> winds have dropped to 15ish there so not too bad
[09:12] <chimpusmaximus> Not sure but dont look like stream is working
[09:13] <infaddict> yer last ssdv image 90 mins ago
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[09:17] <Laurenceb> its odd how well LoRa works
[09:17] <Laurenceb> I guess its well suited for air to ground
[09:17] <Laurenceb> due to lack of interferers
[09:20] <eroomde> prediction is approaching marginal-ville
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[09:22] <PE2BZ> Good morning. Anyone knows if the Skycademy is intended to float or to go high ? Have my LoRa tracker running but they have to go above 8000 meters to get in range.
[09:24] <chimpusmaximus> Skycademy is aloft
[09:24] <DL1SGP> PE2BZ: according to mail it will not be a floating attempt
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[09:24] <chimpusmaximus> also the Skycademy i dont think has LoRa as older pits
[09:24] <chimpusmaximus> the other flights do
[09:25] <craag> PE2BZ: It'll go high, 25-30km I think.
[09:25] <PE2BZ> Thanks Felix. On UKHAS it was not sure yet, Dave wrote.
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[09:25] <PE2BZ> craag That would have to be high enough. LoRa and the Icom 7000 are sharing the V-2000 antenna now, have disconnected the microphone to be safe.
[09:26] <SpacenearUS> New vehicle on the map: 03CALLSIGN123_chase - 12http://tracker.habhub.org/#!qm=All&q=CALLSIGN123_chase
[09:26] <DL1SGP> good pla PE2BZ else fried Lora :)
[09:26] <DL1SGP> *plan even
[09:27] <PE2BZ> I have not enough antenna´s . Althoug someone over here says I do have....
[09:28] <DL1SGP> heh I know that feeling
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[09:31] <PE2BZ> Perhaps I should mount 8 vertical Logpers....
[09:32] <DL1SGP> and use a remote ant switch :)
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[09:35] <PE2BZ> I never found a succesfull design for a receive only antenna matrix. I tried to make such thing with use of Diseqc switches but when I had opened 1 and had drawn the design I ordered 3 more and when opening they redesigned the circuit and ALL parts are now inside one chip.
[09:35] <eroomde> i'm having to work a bit this morn and not keep an eye on habhub like i'd like to - could someone make a note of the predicted landing spot coordinates upon burst of skycademy?
[09:35] <eroomde> and then the final resting place
[09:37] <Geoff-G8DHE> Will do my best
[09:37] <eroomde> ty
[09:37] <Geoff-G8DHE> I've been doing it for the last dozen or so flights prediction and actual
[09:37] <eroomde> oh great!
[09:37] <eroomde> on burst?
[09:38] <eroomde> or before-launch prediction
[09:38] <Geoff-G8DHE> launch prediction and kml of the flight
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[09:38] <fsphil> hopefully a little more inshore than the current prediction
[09:38] <Geoff-G8DHE> quite!
[09:39] <Geoff-G8DHE> Splish, SPlash & Spolsh
[09:39] <eroomde> usual thing
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[09:39] <eroomde> commiting to a launch day far in advance of predictions
[09:40] <eroomde> tough nut to crack, though usually crackable with cutdowns
[09:40] <fsphil> only time I've done that was with the eclipse
[09:40] <eroomde> though if they pull it off then in hindsight a bit of drama and jeopardy only adds to the occassion :)
[09:43] <craag> green on websdr :)
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[09:49] <chimpusmaximus> RPG-A1 looks to be off
[09:49] <craag> Next good thing about new laptop - I can have websdr=>dlfldigi in the background and still do something else without breaking decodes :D
[09:49] <Geoff-G8DHE> Oh launch wasn't at Churchill then ?
[09:50] <chimpusmaximus> Nope moved to elsworth
[09:50] <craag> Elsworth is further west :P
[09:50] <Geoff-G8DHE> mucks up the predictions then!
[09:50] <Geoff-G8DHE> start again
[09:50] <craag> That might be what makes the difference between 'thud' and 'splash'
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[09:52] <mattbrejza> do we know what balloons these are? (or expected burst?)
[09:54] <Geoff-G8DHE> Humm test flight not following the 11:00 prediction either or anything close to it!
[09:57] <chimpusmaximus> got RPF-A2 on LoRa
[09:57] <craag> same on Websdr
[09:58] <craag> (lora receiver on the websdr antenna)
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[10:00] <SpacenearUS> New vehicle on the map: 03nimbusjim_chase - 12http://tracker.habhub.org/#!qm=All&q=nimbusjim_chase
[10:00] <chimpusmaximus> Not managed any image packets yet only telemetry
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[10:02] <craag> chimpusmaximus: I think A2 is only sending telem
[10:02] <chimpusmaximus> ok
[10:03] <chimpusmaximus> Yeah think your right looking at tele count and crc i get
[10:03] <SpacenearUS> New vehicle on the map: 03dragonpi_chase - 12http://tracker.habhub.org/#!qm=All&q=dragonpi_chase
[10:03] <mattbrejza> theyre not getting A1 back
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[10:04] <craag> chimpusmaximus: I've switched to N2
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[10:04] <beam_balloon> Hello
[10:04] <fsphil> howdy
[10:04] <beam_balloon> yo
[10:04] <beam_balloon> I have a few questions
[10:05] <craag> A2 might have a problem with the camera, if that happens then it falls back to telem only
[10:05] <chimpusmaximus> craag:struggling with A2 at moment
[10:05] <fsphil> fire away beam_balloon
[10:05] <beam_balloon> ok let's just leave it at this, is there an email address I can use to ask basic questions on balloon flights like these (I checked the FAQ's but I found nothing useful)
[10:06] <eroomde> no, you can ask here though
[10:06] <beam_balloon> okay that;s nice
[10:06] <eroomde> that way no one person is looking down the end of your question-barrel
[10:07] <beam_balloon> that's true
[10:07] <eroomde> but we can instead huddle together like emperor penguins in the hope that we individually have an above-average chance of surviving
[10:07] <beam_balloon> okay I'll tell you guys what's up
[10:07] <DL1SGP> penguins are cute!
[10:07] <beam_balloon> I'm writing an extended essay with a friend of mine for school
[10:07] <beam_balloon> and we
[10:07] <gonzo_> that's what this chan is for I believe
[10:08] <gonzo_> except we stink less than penguins
[10:08] <beam_balloon> and we are going to measure air density, pressure and temperature for a dutch (we are dutch) atmospheric model
[10:08] <beam_balloon> we are going to use a high altitude balloon for that
[10:08] <beam_balloon> but of course there are a lot of complications
[10:09] <beam_balloon> first of which is how to channel data back to the ground or save it in a black box
[10:09] <beam_balloon> I read the NTX2B tutorial but that was pretty difficuly
[10:09] <beam_balloon> difficult*
[10:09] <beam_balloon> any help?
[10:10] <eroomde> you're going to have problems completing this if you find the ntx2b tutorial pretty difficult, i'll tell you that now
[10:10] <eroomde> but let's ask you some more questions first
[10:10] Nick change: fl_0|afk -> fl_0
[10:10] <beam_balloon> I iunderstand
[10:10] <eroomde> 1) how long have you got to complete all this?
[10:10] <beam_balloon> but I have to admit that I'm a pretty fast learner, it's just that at first sight it's pretty daunting
[10:10] <beam_balloon> a year
[10:10] <eroomde> 2) have you any electronics experience - if i give you say a bridge-type pressure transducer, do you know what to do with it?
[10:10] <eroomde> ok a year is a good start
[10:10] <beam_balloon> nope
[10:11] <eroomde> you can definitely learn enough to do this in a year without prior experience
[10:11] <beam_balloon> thanks
[10:11] <beam_balloon> that's what I'm thinking too
[10:11] <eroomde> so a flight like this is basically just an electronics problem
[10:11] <beam_balloon> it's just that I want some conformation
[10:11] <eroomde> the rest is super easy
[10:11] <beam_balloon> okay
[10:11] <beam_balloon> that's what I thought
[10:11] <beam_balloon> thanks
[10:11] <SpeedEvil> http://www.theguardian.com/uk-news/2015/aug/23/met-office-loses-bbc-weather-forecasting-contract
[10:11] <beam_balloon> so can you guys help me out?
[10:11] <SpeedEvil> insane
[10:11] <beam_balloon> or direct me places
[10:12] <eroomde> yes
[10:12] <beam_balloon> nice
[10:12] <beam_balloon> thanks in advance
[10:12] <beam_balloon> the dutch don't have something like this so I'm pretty excited
[10:12] <beam_balloon> where should we start?
[10:12] <eroomde> if you want to build a flight computer yourself (and you probably want to if you also want to add lots of sensors) then you're going to have to dive into that tutorial you found daunting
[10:12] <eroomde> actually there are quite a few dutch balloon flyers
[10:13] <mattbrejza> i thought there was a #highaltitude-nl
[10:13] <beam_balloon> yeah?
[10:13] <mattbrejza> might be called something different
[10:13] <beam_balloon> i looked all over the place
[10:13] <mattbrejza> they hang around here too though
[10:13] <beam_balloon> well whatever I'm here right now
[10:13] <eroomde> so i'd get yourself an arduino and an ntx2 and a radio receiver (rtl-sdr to start with) and see if you can spend a couple of weeks understanding what is going on with that tutorial
[10:13] <beam_balloon> right
[10:14] <beam_balloon> I do have some experience with programming but nothing like this before
[10:14] <beam_balloon> and with programming I mean HTML
[10:14] <beam_balloon> so thats pretty useless
[10:14] <Andrew_M0NRD> RPS-C1 not on tracker/ssdv?
[10:14] <eroomde> understanding that is not just about understanding radio, but instead it means you'll have understood a lot about microcontrollers and C and some basic electronics
[10:14] <beam_balloon> i understand
[10:14] <beam_balloon> that I am interested in so the ambition is ther
[10:14] <eroomde> yep
[10:14] <beam_balloon> there*
[10:14] <beam_balloon> okay
[10:15] <eroomde> so once you've done that we'll look at collecting data and transmitting it - gps, pressure, temperature, and so on
[10:15] <beam_balloon> yeah
[10:15] <eroomde> stuff to feed into your telemetry unit
[10:15] <beam_balloon> super
[10:15] <beam_balloon> right
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[10:16] <beam_balloon> okay so this sounds stupid but I just hook everything up to my computer and start programming right>
[10:16] <beam_balloon> ?*
[10:16] <beam_balloon> you have to understand i am coming from the bare basics
[10:16] <eroomde> yep
[10:16] <beam_balloon> okay
[10:16] <eroomde> so the arduino has a usb interface
[10:16] <eroomde> you program it over that
[10:16] <beam_balloon> right
[10:16] <beam_balloon> that's where im fuzzy too
[10:17] <beam_balloon> i looked up arduino
[10:17] <beam_balloon> and its just a brand
[10:17] <beam_balloon> so what product am i looking for?
[10:17] <eroomde> it comes with a program (also called arduino) where you write code
[10:17] <beam_balloon> i understand that
[10:17] <eroomde> and that has a button you hi9t to compile the code and put it onto the microcontroller
[10:17] <fsphil> what people usually call "arduino" is most likely the "arduino one"
[10:17] <beam_balloon> allright
[10:18] <beam_balloon> so I want to buy an arduino one?
[10:18] <eroomde> so just get the arduino UNO
[10:18] <beam_balloon> okay
[10:18] <fsphil> sorry uno
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[10:18] <beam_balloon> well this is all coming together great
[10:18] <eroomde> https://www.arduino.cc/en/Main/ArduinoBoardUno
[10:18] <fsphil> silly italians
[10:18] <eroomde> that one
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[10:18] <beam_balloon> you guys are awesome
[10:18] <eroomde> we try :)
[10:18] <beam_balloon> thanks a bundle
[10:18] <beam_balloon> XD
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[10:19] <beam_balloon> Is there any way we can remain having contact?
[10:19] <beam_balloon> eroomde?
[10:19] <eroomde> that wiki page will then talk about some ntx2+arduino stuff, though i recommend just playing with the arduino first - getting the LEDs to flash and so on
[10:19] <eroomde> beam_balloon: i'm often on here
[10:19] <beam_balloon> aky
[10:19] <beam_balloon> okayy
[10:19] <beam_balloon> thats cool too
[10:19] <eroomde> if not thre are loads of people on here who have been in your shoes
[10:19] <infaddict> i 2nd that eroomde. just play with Arduino first and make it do some basic stuff like light a LED.
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[10:19] <eroomde> who can help
[10:19] <tweetBot> @philcrump2: You too can help track the #raspberrypi #skycademy HABs on SUWS WebSDR http://t.co/CFG5gTpMxN with dl-fldigi #ukhas http://t.co/9QvSXgvLJf
[10:19] <beam_balloon> right
[10:20] <eroomde> Upu on here runs an online shop that sells gps units, ntx2s, etc
[10:20] <eroomde> i recommend getting those from him
[10:20] <eroomde> we'll talk about pressure sensors and so on later
[10:20] <beam_balloon> so first I just read up on radio theory and arduino and NTXB2 theory?
[10:20] <beam_balloon> because I can do that
[10:20] <eroomde> yeah
[10:20] <UpuWork> do lots of reading
[10:20] <eroomde> infact here's something to do in parallel
[10:20] <UpuWork> make LED's blink
[10:20] <beam_balloon> o?
[10:20] <beam_balloon> tell me
[10:20] <beam_balloon> I will do that upuwork
[10:21] <beam_balloon> thats a good start XD
[10:21] <UpuWork> look at other peoples project pages
[10:21] <beam_balloon> will do
[10:21] <UpuWork> listen to Ed. A lot.
[10:21] <beam_balloon> ed?
[10:21] <infaddict> Ed=eroomde
[10:21] <beam_balloon> not following
[10:21] Action: UpuWork points at eroomde
[10:21] <beam_balloon> a right
[10:21] <beam_balloon> hahahaha will do
[10:21] <beam_balloon> he sounds like a clever guy
[10:21] <UpuWork> hang about on here you'll pick lots up just by being here
[10:21] <beam_balloon> okay
[10:22] <eroomde> get a cheap 'software defined radio' (SDR) radio receiver
[10:22] <eroomde> like the rtl-sdr
[10:22] <eroomde> and perhaps a hab-amp (see upu's shop)
[10:22] <beam_balloon> for now the problem is just getting everything to work on the ground
[10:22] <eroomde> and try and listen to other people's balloons
[10:22] <eroomde> e.g. right now there are probably some up in the air you could hear
[10:22] <beam_balloon> SDR is also okay for the mission itself?
[10:22] <UpuWork> watch his little talk on parachutes from this weekend https://youtu.be/S7KujrsUB1w?t=3h49m54s
[10:22] <beam_balloon> thanks
[10:22] <mfa298> beam_balloon: I second the listening to Ed bit, but there's also other people who can help if he's not around.
[10:22] <beam_balloon> will do
[10:22] <eroomde> so that means you know how to hear a balloon and know what to expect
[10:23] <eroomde> and will have the listening software set up and everything
[10:23] <beam_balloon> i understand
[10:23] <eroomde> and that will make it easier to confirm that your own stuff on your desk is working
[10:23] <beam_balloon> so just to get everything straight
[10:23] <infaddict> my experience was that cheap RTL-SDR was great for testing and local work, but it wasnt up to the job for longer distance tracking (even with HabAmp). I mightve had a duff one but did try two actually.
[10:23] <beam_balloon> right now i have to get an SDR, NTXB2, and a arduino uno?
[10:23] <mfa298> my other bit of advice is don't try and do it all at once, work on a bit at a time (i.e. make a led blink, then get the radio sending two tones, then get rtty working) and try to understand whats happening at each stage
[10:23] <eroomde> yeah, it's probably a good idea to get something better in anger
[10:24] <eroomde> but an rtl-sdr is like 20 euros so you might aswell just get one to play with initially
[10:24] <beam_balloon> right
[10:24] <infaddict> dont go and buy a ton of stuff at once beam_balloon. you likely end up wasting money as when u understand stuff better you might want to buy slightly differently.
[10:24] <beam_balloon> but that list i just put on is correct right?
[10:24] <beam_balloon> right
[10:24] <eroomde> which list? post it again
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[10:24] <beam_balloon> so what do you say I buy now?
[10:24] <eroomde> ok
[10:24] <tweetBot> @nerdsville: Plenty to be tracking and loads of SSDV
[10:24] <tweetBot> https://t.co/z841IvVdmu
[10:24] <beam_balloon> right now i have to get an SDR, NTXB2, and a arduino uno?
[10:25] <UpuWork> Start with the Arduino
[10:25] <eroomde> arduino uno, ntx2b, some resistors and breadboard (see the wiki tutorial), and an rtl-sdr
[10:25] <beam_balloon> list ^
[10:25] <beam_balloon> what are the resistors for?
[10:25] <eroomde> but yeah, if just one thing now, an arduino uno
[10:25] <eroomde> and just have a play
[10:25] <beam_balloon> okay
[10:25] <beam_balloon> so the best website for that is?
[10:25] <infaddict> i bought a $10 intro to electronics component kit (resistors, leds, capacitors etc)
[10:26] <infaddict> just for learning
[10:26] <UpuWork> I would strongly recommend you review Dave Akermans article on ballooning here http://www.daveakerman.com/?p=1732
[10:26] <eroomde> oh it's PWM now isn't it
[10:26] <beam_balloon> I'm not following
[10:26] <eroomde> sorry i am thinking out loud
[10:26] <beam_balloon> hahaha no problem
[10:26] <beam_balloon> its just a bit frustrating right now
[10:26] <eroomde> you'll want to have some electronics components generally, as they're useful for playing
[10:26] <beam_balloon> a bit scary
[10:26] <beam_balloon> okay
[10:27] <eroomde> yeah you're diving into a new world but don't panic
[10:27] <eroomde> we're here to help
[10:27] <beam_balloon> awesome
[10:27] <eroomde> so perhaps first just get the arduino uno
[10:27] <beam_balloon> that makes me very calm again
[10:27] <beam_balloon> will do
[10:27] <eroomde> do you own a multimeter?
[10:27] <eroomde> it's a super-useful electronics tool
[10:27] <beam_balloon> no not yet but since this is a school task i can steal one from school
[10:27] <beam_balloon> or borrow
[10:27] <UpuWork> borrow :)
[10:27] <eroomde> for measuring all sorts of things - voltages, resistances, capacitance, etc
[10:27] <beam_balloon> theyll let me use one
[10:27] <eroomde> yeah good
[10:27] <beam_balloon> XD i know
[10:28] <beam_balloon> yeah we used it a lot in the past
[10:28] <beam_balloon> i know it
[10:28] <beam_balloon> but i dont own one yet
[10:28] <eroomde> if you have someone who can teach electronics at school, use them too
[10:28] <beam_balloon> i will
[10:28] <eroomde> but, get yourself an arduino uno from any online shop (there are loads)
[10:28] <beam_balloon> we already have learned a lot about that though so that's good
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[10:28] <beam_balloon> okay thanks
[10:29] <eroomde> once you can get an LED to blink and perhaps print when a button is pressed over a serial link to the pc, and other basic things like that, get an ntx2b from upu's online shop
[10:29] <beam_balloon> we are getting bombarded all the time with that stuff at physics
[10:29] <beam_balloon> okay
[10:29] <beam_balloon> i'll do that
[10:29] <beam_balloon> and then?
[10:29] <eroomde> if you understand that V=IR then you'll have no problems with any of the electronics you need for this mission of yours
[10:29] <eroomde> then you can slowly work through the wiki
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[10:30] <beam_balloon> oooo that we are long past
[10:30] <eroomde> to make the telemetry work
[10:30] <beam_balloon> that is reassuring
[10:30] <beam_balloon> oaky
[10:30] <beam_balloon> okay*
[10:30] <tweetBot> @AmsatUK: #RaspberryPi #Skycadaemy balloons https://t.co/cnJMK9H7VF Useful links http://t.co/nd5VjZzucU #amsat #hamradio #hamr https://t.co/JGC5ZohzwI
[10:30] <eroomde> then we'll talk about adding all the sensors
[10:30] <beam_balloon> okay
[10:31] <beam_balloon> do you have experience with that?
[10:31] <eroomde> yes, i've done a couple of flights in the past
[10:31] <beam_balloon> awesome
[10:31] <tweetBot> @SarahFTempleton: @WilmslowDojo https://t.co/Gea3Cxu80t
[10:31] <beam_balloon> but also with measurement like ours?
[10:31] <eroomde> and i regularly use pressure and temperature sensors in my day job
[10:31] <beam_balloon> o wow
[10:31] <beam_balloon> thats awesome
[10:31] <mattbrejza> ed is basically Mr Instrumentation around here
[10:32] <beam_balloon> what do you do?
[10:32] <beam_balloon> hahaha nice
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[10:32] <tweetBot> @AmsatUK: #RaspberryPi #Skycademy balloons https://t.co/cnJMK9H7VF Useful links http://t.co/nd5VjZzucU #amsat #hamradio #hamr https://t.co/JGC5ZohzwI
[10:32] <eroomde> i'm an engineer
[10:32] <beam_balloon> awesome
[10:32] <beam_balloon> where?
[10:32] <eroomde> oxford (UK)
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[10:33] <beam_balloon> like in the uni or just stationed there?
[10:34] <beam_balloon> by the way i am re reading the wiki and now i see what PWM is... learning is fun :)
[10:34] <infaddict> use the wiki a lot. its great.
[10:34] <eroomde> oh no, private company
[10:34] <beam_balloon> shit
[10:34] <beam_balloon> i have a lesson now
[10:34] <beam_balloon> crap
[10:34] <beam_balloon> gotta go
[10:34] <infaddict> i spent months in it and still do (i started from 0 in December and have 1 launch so far)
[10:34] <beam_balloon> thanks a lot aghain
[10:34] <beam_balloon> sorry sorry
[10:34] <eroomde> no problem
[10:34] <Andrew_M0NRD> Flight RPF-C1 is sending callsign RPS-C1 not showing on tracker?
[10:34] <beam_balloon> gotta g0
[10:34] <eroomde> see you around
[10:34] <beam_balloon> byeeee
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[10:34] <infaddict> ;-)
[10:34] <infaddict> that makes my day... "learning is fun"
[10:35] <fsphil> it is!
[10:35] <fsphil> wish I could tell my teenager self that :)
[10:35] <infaddict> indeed great when kids are eager and keen to learn
[10:35] Action: mfa298 just wishes he had time to learn stuff for fun (rather than work)
[10:35] <eroomde> working it out, my latest project takes over 1 million pressure and temperature readings each second
[10:35] <eroomde> that's actually quite a lot
[10:35] <infaddict> lol
[10:35] <fsphil> yes
[10:35] <fsphil> yes it is
[10:35] <eroomde> we're so spoiled by computers that i never stopped to think that that's a lot of data
[10:36] <eroomde> i'll show him this picture next time https://www.dropbox.com/s/x9qahafhi4p6jc0/2015-03-20%2014.55.07.jpg?dl=0
[10:36] <eroomde> there are 64 pressure sensors just on the copper nozzle
[10:36] <craag> so you're a Big Data engineer too now eroomde ;)
[10:36] <eroomde> each sampled at 10kHz
[10:37] <eroomde> that should re-assure him that one pressure reading per second is acheivable
[10:37] <SpeedEvil> :)
[10:37] <infaddict> do u store all that data onboard eroomde or just when testing
[10:38] <eroomde> the datalogger boxes we built interface back to the control room over ethernet
[10:38] <eroomde> so it just gets all spat back to the control room pc
[10:38] <infaddict> right
[10:38] <SpacenearUS> New vehicle on the map: 03RPF-S-CHASE_chase - 12http://tracker.habhub.org/#!qm=All&q=RPF-S-CHASE_chase
[10:38] <eroomde> then we run an suite of software on that big file to make various graphs and measurements and so on to check that things are as we hoped
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[10:39] <eroomde> https://www.dropbox.com/s/dufc4gyfqwi58a7/2015-03-20%2014.56.03.jpg?dl=0
[10:39] <eroomde> you can see the ethernet cabes top right
[10:39] <eroomde> then a switch at the top
[10:39] <eroomde> i should tidy that up
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[10:44] <chimpusmaximus> Too many flights and numbers for my wee brain
[10:44] <Geoff-G8DHE> 9 channels is a bit much at times ;-)
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[10:48] <chimpusmaximus> Think i pretty much reached my range limit.
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[10:50] <Geoff-G8DHE> Not seen any lora from RPF-C2 yet ?
[10:50] <chimpusmaximus> Now do i go order the x-50
[10:51] <Geoff-G8DHE> Yea C" is a bit higher than the bandwidth can capture on AFC
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[10:55] <chimpusmaximus> A1/A2 not looking to good
[10:55] <tweetBot> @G8DHE: HAB: 9 payloads in flight, plenty to track! http://t.co/DouEBFPWvc* #ukhas #hab
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[10:55] <SpacenearUS> New vehicle on the map: 03DL0PTB-11 - 12http://tracker.habhub.org/#!qm=All&q=DL0PTB-11
[10:56] <craag> bad link on that tweet Geoff-G8DHE
[10:56] <UpuWork> remove the *
[10:56] <craag> it's pulled the star out of the original link I think
[10:56] <craag> ..;sky*
[10:57] <Geoff-G8DHE> Oh yer when it got shortened :-(
[10:57] <fsphil> !dial skycadamy
[10:57] <SpacenearUS> 03fsphil: Can't find a flight doc matching your query
[10:57] <mattbrejza> have each of these paylaods been made by some kids
[10:57] <mattbrejza> ?
[10:57] <chimpusmaximus> Big Kids
[10:57] <UpuWork> big kids
[10:57] <UpuWork> lol
[10:58] <fsphil> !dial skycademy
[10:58] <SpacenearUS> 03fsphil: Latest dials for 03SKYCADEMY 10(a223): 03434.52612 MHz, 434.52297 MHz, 434.52381 MHz, 434.5227 MHz
[10:58] <mattbrejza> ah still training
[10:58] <mattbrejza> i think some of them have learned an important lesson about filling today
[10:59] <UpuWork> well supervised by Dave and Steve
[10:59] <tweetBot> @G8DHE: HAB: error on the tracking link try this one http://t.co/eskNV9qPK0 #ukhas #hab
[10:59] <UpuWork> so I doubt any are filled wrong
[10:59] <fsphil> can just about see it on the waterfall
[10:59] <Geoff-G8DHE> tks craag
[10:59] <mattbrejza> even A1?
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[11:01] <infaddict> The Broads is a lovely part of the world. But wouldnt want to be fishing a payload out. nightmare driving around the obstacles too.
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[11:02] <jcb_> Thanks http://t.co/eskNV9qPK0 #ukhas #hab works
[11:02] <PE2BZ> I see 4 LoRa payloads at 434.250 and up in the waterfall. However, the LoRa and Pi combination still gives no decodes :-(
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[11:04] <mario__> hi. I work for Merkinch Primary school Inverness
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[11:05] <mario__> I'm looking for some advice to launch balloon
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[11:06] <fsphil> hiya mario__
[11:06] <Geoff-G8DHE> mario__, you've come to the right place 5 flights running at the moment!
[11:06] <fsphil> hehe yes
[11:06] <Geoff-G8DHE> all training flights
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[11:07] <mario__> so can you tell me where to start
[11:08] <Geoff-G8DHE> mario__, have you tried here for a set of guides and info http://www.daveakerman.com/
[11:08] <mario__> what to do first
[11:08] <fsphil> https://ukhas.org.uk/general:beginners_guide_to_high_altitude_ballooning
[11:08] <fsphil> this has some good info
[11:09] <fsphil> there's lots to read on the wiki. the best bet is to glance over this to get an idea of what's involved
[11:09] <fsphil> and you can always ask us in here about any particular part
[11:11] <Geoff-G8DHE> Also a good one http://www.daveakerman.com/?p=1732
[11:11] <mario__> thank you so much
[11:12] <fsphil> it's quite a lot at first, but each part is quite simple :)
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[11:13] <adamgreig> camb-hams say,
[11:14] <adamgreig> It would seem some are sending SSTV (or digital) images down but I can't find details, typical Habhub... :( They are appearing here http://ssdv.habhub.org/ and some are posting on twitter so if you hear the balloon you might work out the mode to decode.
[11:14] <adamgreig> might be worth putting a link to instructions on decoding it yourself on the web page fsphil
[11:14] <fsphil> I'm not sure what mode they are either. are they all lora?
[11:14] <fsphil> they said "typical Habhub"?
[11:14] <adamgreig> oh probably ;(
[11:15] <adamgreig> lol yea
[11:15] <craag> RPF-_1 are RTTY
[11:15] <craag> RPF-_2 are lora
[11:16] <adamgreig> are any rtty also ssdv?
[11:16] <craag> yes
[11:16] <Geoff-G8DHE> C!,C2,N1,N2,S1 & s2 are SSDV
[11:16] <craag> all except -A
[11:16] <craag> which appears to have a camera issue, so is telem only
[11:16] <adamgreig> ok
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[11:18] <fsphil> but yes I can put together a guide to the rtty variant
[11:19] Nick change: fl_0 -> fl_0|afk
[11:19] <Geoff-G8DHE> all the RFP-?2 are LoRa the 1 are rtty
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[11:19] <chimpusmaximus> All the RTTY transmitters are 300 baud, 600Hz shift, 8 N 2. IDs/Frequencies are:
[11:19] <chimpusmaximus> SKYCADEMY 434.523MHz
[11:19] <chimpusmaximus> RPF-A1 434.100
[11:20] <chimpusmaximus> RPF-S1 434.125
[11:20] <chimpusmaximus> RPF-N1 434.150
[11:20] <chimpusmaximus> RPF-C1 434.175
[11:20] <chimpusmaximus> All the LoRa transmitters are my "mode 1" (Implicit/EC 4:5/BW 20.8kHz/ SF6). Payload IDs/frequencies are:
[11:20] <chimpusmaximus> RPF-A2 434.250
[11:20] <chimpusmaximus> RPF-S2 434.300
[11:20] <chimpusmaximus> RPF-N2 434.350
[11:20] <chimpusmaximus> RPF-C2 434.400
[11:20] <fsphil> oops
[11:20] <chimpusmaximus> Sorry
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[11:24] <fsphil> no useful signal from any of them here
[11:24] <fsphil> I need my colinear back up :(
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[11:26] <tweetBot> @AmsatUK: G8DHE notes lots of 434MHz balloon signals to track. Beginners links: http://t.co/nd5VjZzucU #amsat #hamradio #hamr https://t.co/IALCmEahdL
[11:29] <chimpusmaximus> Image size s2 is using over LoRa seems a good match
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[11:54] <RPF-JR> Hi anyone out there tracking RPF-C1 / RPF-C2
[11:54] <SpacenearUS> New vehicle on the map: 03RTK_chase - 12http://tracker.habhub.org/#!qm=All&q=RTK_chase
[11:55] <chimpusmaximus> Fair few i think as call signs on images on ssdv
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[11:56] <Geoff-G8DHE> RPF-C just dropped out of my horizon
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[11:58] <RPF-JR> Can't see any upload telem in log tail
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[12:00] <Geoff-G8DHE> the callsign was RPS-C1 so may be missing flight/payload doc ?
[12:01] <RPF-JR> RPS? not F?
[12:01] <Geoff-G8DHE> Yes!!!
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[12:02] <RPF-JR> damn!
[12:03] <Geoff-G8DHE> Look on SSDV channel http://ssdv.habhub.org/RPS-C1
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[12:07] <fsphil> lots of places named *ham near the chase area
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[12:08] <chimpusmaximus> I wonder if s2 pi reset as images stating at 0 again
[12:08] <chimpusmaximus> Telem count still normal mind
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[12:35] <fsphil> A1 going swimming
[12:35] <Geoff-G8DHE> So only one Splish!
[12:36] <Geoff-G8DHE> mind you perhaps a Splosh from the A2 payload aswell!
[12:36] <Geoff-G8DHE> Lunch AFK
[12:36] <rttilghman> chase boat?
[12:37] <fsphil> maybe!
[12:37] <fsphil> it's happened before
[12:38] <eroomde> and will happen again
[12:39] <fsphil> S1 and 2 heading for a river
[12:39] <arjunnaha> Would launching at 11:30 make it harder to chase? Do I need an earlier flight time?
[12:40] <fsphil> depends on what the weather is doing
[12:41] <arjunnaha> Average middle of October weather...15ish and cloudy?
[12:41] <eroomde> should be ok
[12:41] <eroomde> assuming an up-down flight
[12:41] <fsphil> just give yourself time to find it before sunset
[12:41] <eroomde> it'll be down by 3
[12:42] <arjunnaha> Or would a 9:00 launch be better?
[12:43] <eroomde> 9.00 would be earlier than 11.30
[12:43] <mattbrejza> depends if you like waking up early
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[12:44] <arjunnaha> i'm fine with the whole 'no sleep' thing, but this is my first flight and I want it to go as smoothly as possible
[12:44] <fsphil> just give yourself plenty of time
[12:44] <fsphil> you don't want to be rushing
[12:45] <arjunnaha> i'm doing it at a school and want the kids to help with launch and stuff
[12:45] <arjunnaha> so it's either 9:00 or 11:30...
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[12:45] <gonzo_> add a generous amount of 'ish' time
[12:46] <craag> For a first launch you want to leave yourself 2 hours at the launch site to get ready I think.
[12:46] <DL1SGP> ssdv enabled dash cam, well almost :)
[12:46] <gonzo_> balloons going up on time is rare
[12:46] <arjunnaha> So I'll prob do a 11:30 launch getting to the launch site at 8
[12:46] <arjunnaha> plenty of time ;-)
[12:46] <craag> Yep sounds good
[12:46] <eroomde> yep
[12:47] <eroomde> start inflating the balloon at 11.15
[12:47] <arjunnaha> thanks
[12:47] <eroomde> have absolutely everything else happily ready by then (including gps locked and ready) a chunk of time before
[12:47] <eroomde> payload train constructed, with a loop at the top read to go round the balloon neck, etc
[12:48] <eroomde> sod's law will still try and get you somehow but the more you try and prepare for a 10am launch the more likely you are yo actually be up by 11.30
[12:48] <arjunnaha> haha, sounds good to me :)
[12:49] <arjunnaha> hopefully all will go well
[12:49] <eroomde> so if you can fly lots of batteries, do
[12:50] <eroomde> so you can turn the payload on at 10 and not mind having it sat TXing for an hour
[12:50] <arjunnaha> I have literally prepared for 2 years. No joke. Getting funding took up 1 year and 11 months
[12:50] <eroomde> wow
[12:50] <arjunnaha> I got the uksa space for all funding
[12:51] <arjunnaha> then i had to goverment checks to see if I was eligible for 'goverment funding'
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[12:51] <arjunnaha> So thank you all for indirectly paying for my payload ;-)
[12:51] <craag> where are you in the uk arjunnaha ?
[12:51] <craag> well done on getting something out of uksa!
[12:52] <fsphil> all I got out of uksa was a free magazine
[12:52] <arjunnaha> craag Reading
[12:52] <arjunnaha> Berkshire
[12:52] <arjunnaha> I think it was that I was doing it for a school, it had a educational purpose and the audience reach
[12:52] <craag> :) I'm down in southampton
[12:53] <arjunnaha> Not far at all...
[12:53] <arjunnaha> ;-)
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[12:56] <eroomde> it took two years for the UKSA to decide on your application?
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[12:58] <SpeedEvil> I asked them for costs of prior applications to UKSA for launch licences, and they said they don't hold that information.
[12:58] <SpeedEvil> Which seems odd.
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[13:01] <eroomde> i'm not sure the uksa deals with launch licensing
[13:01] <eroomde> i don't think that's even a defined term
[13:01] <eroomde> it's not like the uksa has launch sites to license
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[13:06] <SpeedEvil> eroomde: there have been several UK licenced launches in the past few years
[13:06] <SpeedEvil> That is - launches for which the UK is the controlling state.
[13:07] <SpeedEvil> I should perhaps ahve asked if that was real, or if they are nominal only, with the paperwork handled by some other agency
[13:07] <arjunnaha> eroomde: It took about 4-6 months, the other time was spent trying to find the grant, get sponsorship, crowdfunding, etc...
[13:07] <eroomde> wow
[13:07] <russss> I think they're all nominal as they also have to be licensed in the territory where they launch?
[13:08] <SpeedEvil> russss: technically, no.
[13:08] <SpeedEvil> russss: The UK has teh power to require a full UK launch application for any UK citezen who controls a rocket launch - anywhere in the world.
[13:08] <russss> yeah I'm aware of that
[13:08] <SpeedEvil> They however also have the power to delegate it out
[13:09] <SpeedEvil> And the converse usually in principle applies
[13:09] <SpeedEvil> Probably a good point though.
[13:09] <russss> but I'm not sure how much the UKSA actually does in that case. Probably just charges you a chunk of money for the privilege of doing not very much
[13:09] <SpeedEvil> exactly.
[13:09] <russss> https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/431425/UK_Registry_of_Space_Objects_v4.pdf
[13:09] <SpeedEvil> yeah - that thing
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[13:11] <arjunnaha> The Outer Space Act...xD
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[13:12] <arjunnaha> The launches all seem to be MoD and the "Science and Engineering Research Council" (basically UKSA)
[13:13] <eroomde> but if you got sponsorship and crowdfunding, why do you need a uksa grant?
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[13:14] <arjunnaha> I didn't get sponsorship, I was looking for it half the time. UKSA only decided to give £500 compare to the £1000 I asked for, so I had to crowdfund the rest
[13:14] <arjunnaha> *compared
[13:15] <SpeedEvil> 1000 - for what?
[13:15] <craag> cameras..
[13:15] <SpeedEvil> ah
[13:16] <arjunnaha> gopros mainly
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[13:16] <arjunnaha> rest was more like airspys, pits board and helium
[13:16] <craag> gone the luxury route then :)
[13:18] <arjunnaha> yes :-) wanted the equipment to last (if we recovered it!) so we could do a lot of flight. That was one of the feature points in my application to the grant, that it could be used again!
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[13:19] <craag> Good plan :)
[13:19] <craag> Have you had a go at tracking other flights yet?
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[13:20] <arjunnaha> I'm yet to receive the money from our finance dept. at school, as the rest of the money had to go through audited accounts (yet another condition of the grant!(
[13:21] <craag> Ah
[13:21] <craag> I'd suggest getting acquainted with setting up the pits, receiving it, and also receiving other flights as soon as you can
[13:22] <arjunnaha> I've got the gopros from the crowdfunding, that went straight in my basket!! I'm going to borrow from the bank of dad until the money comes through!
[13:23] <craag> things like learning to notice that you've accidentally clicked 'LSB' instead of 'USB' and what to do about it are good to know before the day
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[13:23] <craag> basically get yourself enough experience to be able to cope with some troubleshooting on the day
[13:25] <eroomde> yeah that's a government agency special
[13:26] <eroomde> even £10 has to go through an auditing process
[13:26] <eroomde> (which costs £1000)
[13:26] <arjunnaha> I think 2 years of reading the wiki is about as much as you can do prior to buying the equipment!
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[13:27] <craag> yep, and you've also found the right place here ;)
[13:27] <fab4space> I have prepared my flight during 2 years , and recovered the payload
[13:27] <arjunnaha> I don't think they have even released it yet! I think I get it after the project and then I have to write a 50 page document to 'evaluate the success' of the project
[13:28] <fab4space> but in south of france we don't have the same network and regulations as in the UK
[13:28] <craag> lol welcome to government funded engineering :D
[13:28] <arjunnaha> I do hope that I recover it, otherwise it's £300 from crowdfunding, £200 from school and £500 from the gov down the drain
[13:29] <arjunnaha> they might not even pay the money if I lose the equipment
[13:29] <Geoff-G8DHE> Ha love the after chsase images still coming in :-)
[13:29] <arjunnaha> In debt by £500 to the government before I'm even 15! Welcome to Britian.
[13:29] <arjunnaha> *Britain
[13:30] <eroomde> i would only turn to government funding as an absolute last resort
[13:30] <eroomde> honestly
[13:30] <eroomde> but you'll have learnt a lot from going through this process
[13:30] <arjunnaha> Definitely!
[13:36] <Vaizki> now they also have a file on you
[13:36] <eroomde> ?
[13:37] <Vaizki> just scaring the kids
[13:37] <fab4space> :)
[13:38] <arjunnaha> I don't think a Science grant would filter back to the IPS or police...
[13:38] <arjunnaha> ;-)
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[13:38] <fab4space> it depends on the payload components :)
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[13:39] <arjunnaha> I don't think I put the C4 compound on the grant application, that's a surprise. Ssshhh!
[13:40] <eroomde> so when are you hoping to launch arjunnaha ?
[13:40] <eroomde> what's still left to do?
[13:41] <nick_> Applying for grants is very hit and miss.
[13:42] <nick_> The effort in applying seems to have no correlation to the value of the grant.
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[13:43] <nick_> I'm doing an application now that is £3-400k. I'm writing a couple of pages more than a £7.5k grant I got
[13:43] <eroomde> it's also much easier in academia
[13:43] <eroomde> the typical prose/£k is enormously lower
[13:44] <nick_> Some things are just weird though.
[13:44] <eroomde> compared to esa/uksa/fp7
[13:44] <nick_> For example I get 3 pages to write about all the work I have planned for 5 years.
[13:44] <nick_> I also have 2 pages to write about my "data management plan".
[13:44] <nick_> My plan is to store it on a disk server somwhere.
[13:45] <nick_> Can I have the 1.9 pages left for more of my plans? No
[13:47] <eroomde> they're keen on that
[13:47] <eroomde> our data and configuration management document (document, note) was 'git.'
[13:48] <arjunnaha> Just put the font size to 1pt
[13:49] <nick_> arjunnaha: not only do they specify the font size, they also specify the font.
[13:49] <nick_> Of course they choose a non-free font, so I just have the nearest equivalent.
[13:49] <arjunnaha> How dare they. I bet you it was Arial
[13:49] <arjunnaha> Which font was it?
[13:50] <nick_> I forget.
[13:50] <arjunnaha> Haha
[13:50] <arjunnaha> Here the link to the grant I got, if anyone is interested...https://www.gov.uk/apply-for-funding-academic-community-and-educational#space-for-all---community-funding-scheme
[13:50] <nick_> They also make me do horrible things to my latex document to fit in the page limits. There are lots of \vspace{-x}
[13:51] <arjunnaha> Which gov agency?
[13:51] <nick_> arjunnaha: there's a fairly easy to get STFC schools grant for up to £500, I think
[13:54] <nick_> Actually there are two. One is up to £500, one is £500 to £10k
[13:54] <nick_> http://www.iop.org/about/grants/school/page_38824.html
[13:54] <nick_> That's the cheap one
[13:55] <nick_> http://www.stfc.ac.uk/public-engagement/public-engagement-small-awards-scheme/
[13:55] <nick_> That's the more expensive one.
[13:56] <arjunnaha> I had a look at the iop one, it wasn't enough money at the time...
[13:56] <eroomde> nick_: did you get anywhere with that DC-xxMHz high gain amp?
[13:56] <nick_> Circuit is designed
[13:56] <arjunnaha> But we only got £500 from UKSA anyway
[13:56] <nick_> I overspent my budget, so I'm trying to fix that before producing the prototypes
[13:56] <nick_> Gotta board a plane...
[13:59] <infaddict> i applied to the wife fund for a grant but got declined. so siphoned funds into a secret HAB account ;-)
[14:00] <gonzo_> you now hope she doesn't google your nick!
[14:00] <infaddict> lol
[14:00] <arjunnaha> zeusbot ;_)
[14:01] <infaddict> its like most of my hobbies. my worst nightmare is when i die, my wife sells my guitars for what I told her they cost!
[14:01] <eroomde> ha
[14:01] <eroomde> ashley habbison
[14:01] <infaddict> hehe
[14:02] <gonzo_> I went to the house opf one of the old radio club members after he had died, to buy some of his radio kit. and the widow got us dismanlting some of the wiring that the sons were frightened by.
[14:02] <gonzo_> and as we took yhings apart, we were finding stashes of money
[14:02] <gonzo_> he's been squirrling away
[14:02] <eroomde> lol
[14:02] <eroomde> a few bottles of whisky
[14:02] <eroomde> i kinda want a shed
[14:03] <eroomde> despite having no wife from which to escape
[14:03] <infaddict> yep every gentlemen needs a shed/mancave/shack of some sort eventually
[14:04] <arjunnaha> very true ;-)
[14:05] <infaddict> arjunnaha: once you are hooked, this happens: https://groups.google.com/d/msg/ukhas/LkteE6wS5L8/VuPKEfjQ41sJ
[14:06] <eroomde> wait until you start eyeing up a cnc mill
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[14:07] <fsphil> "Hmm.. my house doesn't have a great radio horizon..."
[14:07] <eroomde> this year alone i've bought a tektronix mdo3104 + specan and decode options, an agilent 34461, and a rohde schwarz psu
[14:07] <eroomde> it's bad.
[14:08] <infaddict> yep fsphil, reception is now on my house hunting list haha
[14:08] <fsphil> excellent
[14:08] <fsphil> I have to admit to doing the same
[14:08] <infaddict> my wife loved a house but it was in a valley with big hill behind, i kinda made up some stuff about central heating and roof needing replacing
[14:08] <arjunnaha> Haha
[14:08] <gonzo_> infaddict, hehe, yes that is how it starts.... But it gets worse
[14:09] <mfa298> I keep wondering if there's going to be an interesting tradeoff in where to buy a house, You want to be high enough to have a good horizon, but not so high all the mobile networks have masts in the next field
[14:09] <gonzo_> a friend sent his missus out house hunting a few years ago. Req: A clear horison from east to west through south.
[14:09] <gonzo_> the rest was up to her
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[14:10] <arjunnaha> I was getting an engineer to fit an aerial to the roof when my mum came home. Whoops. She went crazy though we had a sky dish, tv aerial, fm and dab!!!
[14:10] <fab4space> and when you combine HAB and astronomy it's getting even more difficult
[14:10] <infaddict> that is very true mfa298
[14:10] <gonzo_> my place is in a valley, but I was more interested in satellites when I brought it
[14:10] <fab4space> the clear south horizon req is shared in that case :)
[14:11] <gonzo_> the estate agent did wonder why I refered to the garden length in terms of wavelenmgth
[14:11] <gonzo_> luckilly, at south, the clarke belt is quite high, but for non geo sats, they can be anywhere
[14:12] <gonzo_> (good old Oscar 40... RIP)
[14:13] <gonzo_> it's not wise to let mothers/wives/neigbours see antennas till they are in the air
[14:13] <craag> they look smaller when they're up :)
[14:14] <gonzo_> helped someone with a 50MHz yagi once. His old dear went mental at this thing that took up the whole garden. And refused to believe that it was the one that had benn up there for the lkast 5yrs
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[14:14] <infaddict> yep i cant wait until i have a fixed installation at home
[14:14] Nick change: Dan_ -> Guest4435
[14:14] <Geoff-G8DHE> Also grow the aerials.
[14:14] <Geoff-G8DHE> start with the mast alone
[14:15] <Geoff-G8DHE> then add aerials themselves a few days later
[14:15] <Guest4435> Hello. I'm working on a tracking page for the Project Hermes balloon launch. I found the code for the Habhub tracker app on github. Where can I obtain permission to edit it and embed it in our tracking page?
[14:15] <Geoff-G8DHE> then lift / telescope the pole upwards as needed
[14:16] <craag> Guest4435: http://tracker.habhub.org/embed-preview.html
[14:16] <adamgreig> beat me to it :p
[14:16] <LazyLeopard> Biological aluminium is very handy stuff...
[14:16] <adamgreig> the tracker is busy today
[14:16] <adamgreig> firefox struggling a bit
[14:17] <Guest4435> No, I've already found that. I want to edit the source code to stop the welcome page coming up automatically on the embed.
[14:17] <Guest4435> Is that allowed?
[14:17] <adamgreig> I don't think you can do that very easily really
[14:17] <adamgreig> the source code is hosted on habhub servers
[14:17] <adamgreig> and talks to the habhub database
[14:17] <adamgreig> you can't run it on your server without also running your own database and somehow getting data into it?
[14:18] <Guest4435> https://github.com/rossengeorgiev/habitat-mobile-tracker
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[14:18] <craag> you could have all the ajax work cross-site I guess
[14:18] <adamgreig> yea I guess
[14:18] <adamgreig> does it atm?
[14:18] <Geoff-G8DHE> If you embed it it doesn't have to show any welcome screen ?
[14:18] <adamgreig> maybe we have cors turned on
[14:18] <craag> yeah, works on habmap
[14:18] <adamgreig> fe
[14:18] <adamgreig> then yea do what you want Guest4435
[14:19] <adamgreig> a link to habhub.org or something along those lines would be courteous
[14:19] <Guest4435> Of course.
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[14:20] <Guest4435> I shall post a link on here when I have finished it to see what you think
[14:22] <fsphil> still nothing heard from F-1
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[14:31] <arjunnaha> https://www.indiegogo.com/projects/slick-stabilizer-a-motorized-gopro-steadicam#/story - Put it on a ballon, then see how steady it is...
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[14:36] <SA6BSS> fsphil: have had one web sdr from wedter uk on all day listening
[14:36] <SA6BSS> no sound
[14:36] <SA6BSS> *western
[14:39] <SM0ULC> ello!
[14:40] <SA6BSS> tjäna
[14:44] <fsphil> yea it's likely down
[14:47] <SA6BSS> yeah, last cals it was decending 5200m ca
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[14:52] <WB8ELK> WB8ELK balloon possibly over France today: 433.92 MHz AM modulated with DominoEX16.
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[15:00] <fsphil> well I can't tell you where it isn't :)
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[15:01] <gonzo_> double negatives are a complere no-no
[15:01] <gonzo_> t
[15:02] <gonzo_> am dominoEX????
[15:02] <gonzo_> is that on a subcarrier?
[15:04] <Geoff-G8DHE> eh ?
[15:05] <fsphil> yeah it's am modulated
[15:08] <gonzo_> and on the worst choce of freq.... that really has to go into the 'how to make your HAB fail!' doc
[15:08] <gonzo_> AM could technically refer to SSB, but somehow I doubt it!
[15:08] <gonzo_> f
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[15:09] <fsphil> it works fairly well
[15:10] <fsphil> not ideal but good enough
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[15:19] <WB8ELK> It actually works pretty well...out to 160 km receive.
[15:20] <WB8ELK> The goal was to use off the shelf components and low cost to make a Pico transmitter with solar cell under 13 grams in weight.
[15:21] <WB8ELK> Sparkfun SAW transmitter on 433.92 costs $4 US. Hab Supplies MAX-7C breakout board and Arduino Pro Mini board. PowerFilm Solar cell.
[15:21] <WB8ELK> 36" diameter silver mylar balloon.
[15:21] <craag> nice
[15:21] <craag> solar only? no battery?
[15:22] <WB8ELK> unfortunately it is competing with wireless thermometers and weather stations but the DominoEX16 cuts right through it all.
[15:22] <WB8ELK> solar only to keep the weight down to 13 grams
[15:22] <craag> :)
[15:24] <WB8ELK> http://imgur.com/a/3JqH0
[15:24] <adamgreig> haha nice!
[15:24] <WB8ELK> Photo of the transmitter.
[15:24] <Geoff-G8DHE> Do you have a hysplit path for it ?
[15:24] <WB8ELK> yes...will have to create a link to it.
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[15:25] <craag> neat !
[15:27] <craag> so minimal. I like it :)
[15:27] <WB8ELK> http://imgur.com/cD20scR
[15:28] <Laurenceb> hi WB8ELK
[15:28] <Laurenceb> I was watching your rockoon videos, very interesting
[15:28] <WB8ELK> Only way to modulate the 18-tone DominoEX16 telemetry was to send square wave tones to turn the SAW oscillator on/off rapidly. Works pretty well and at 10 mW output probably no worries about harmonics.
[15:29] <Laurenceb> was it a hybrid motor?
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[15:29] <WB8ELK> Other than CW, the SAW is too unstable to accurately do tones any other way. But it is very lightweight and inexpensive.
[15:30] <WB8ELK> Hybrid. First was with Nitrous Oxide and Asphalt. Second larger one (300 pound rocket) was Nitrous and HTPB.
[15:30] <Laurenceb> 300lb O_o
[15:30] <theRealSIbot> In real units: 300 lbs = 136.1 kg
[15:30] <Laurenceb> wow
[15:30] <Geoff-G8DHE> Well I'll be the nearest station in the UK :) So listening on it now ...
[15:31] <fsphil> you launched 136kg? :)
[15:31] <Laurenceb> can I ask how you got permission for that?
[15:31] <WB8ELK> or better yet: 21.4 stones in weight :-)
[15:31] <Laurenceb> actually I think I've read about that flight
[15:32] <Laurenceb> interesting stuff
[15:32] <WB8ELK> Coordinated with FAA and Egland AFB. We had to be 200 miles out to sea to fly it from a large oil rig supply boat we rented in Florida.
[15:32] <Laurenceb> http://www.srcf.ucam.org/~icw26/Iain_Waugh_Project_Report_Release.pdf
[15:32] <fsphil> https://www.youtube.com/watch?v=-1bGNTqOzGI
[15:32] <Laurenceb> yeah I read the project writeup
[15:32] <fsphil> that's a proper payload
[15:33] <WB8ELK> Here's one of our attempts that dropped a hissing rocket on to the deck of a NASA barge: http://chapters.nss.org/al/HAL5/HAL5_old/HALO/SL-2/
[15:33] <fsphil> boat launch too. you don't see that too often
[15:33] <Laurenceb> WB8ELK did you catch my UKHAS talk?
[15:33] <WB8ELK> James Van Allen did the first rockoons in the 1950s and usually were launched from large boats.
[15:34] <WB8ELK> Yes Laurenceb I enjoyed your talk very much.
[15:34] <Laurenceb> sorry to talk down your flight lol
[15:34] <Laurenceb> since the conference I've been considering a different idea entirely
[15:34] <Laurenceb> a sort of scaled down type 63
[15:35] <Laurenceb> https://en.wikipedia.org/wiki/Type_63_multiple_rocket_launcher
[15:35] <gonzo_> WB8ELK, modulating AM is not ideal. But the 433.92 will probably mean that very few people will be able to hear enough to decode a packet
[15:35] <gonzo_> even in rural areas, that frew is very busy
[15:35] <Laurenceb> http://weaponsystems.net/image.php?&size=lightbox&image=/img/ws/ar_mrl_type63_m3.jpg
[15:35] <Laurenceb> its finless
[15:35] <gonzo_> (given the sensitivity of the average HAB rx station)
[15:36] <Laurenceb> http://www.cat-uxo.com/communities/0/004/010/791/960/images/4607302155.swf
[15:37] <Geoff-G8DHE> Its actually very quiet here at the moment https://www.facebook.com/groups/2529055732/permalink/10153377378425733/
[15:37] <Geoff-G8DHE> Oops wrong one
[15:37] <Geoff-G8DHE> http://360.g8dhe.net/hab_flights/2015_Flights/Screenshot-2015-08-25-163546.png
[15:37] <WB8ELK> Hysplit trajectory forecast for my DominoEX balloon possibly over France now: http://imgur.com/Cqs7CxX
[15:37] <fsphil> yea 433.900 is just the odd blip for me. though I've seen it be pretty awful
[15:38] <Laurenceb> WB8ELK: I was considering some silicon carbide jet vanes to make the rocket spin itself
[15:38] <eroomde> you're going right over our french house
[15:38] <eroomde> directly
[15:38] <eroomde> sadly, i'm not in it
[15:38] <WB8ELK> Actually Laurence...our rockoon video that you showed lost its rocket motor at ignition and what you saw was the rocket slowly lifting out of the gondola rails by Nitrous pressure alone.
[15:38] <Laurenceb> but I need to do some better modelling first, the idea might be simpler than a complex external spin system
[15:38] <gonzo_> I had a listen on that freq from our hilltop site, a few km from the nearest village, and it was still busy
[15:38] <Laurenceb> oh woopsie
[15:39] <Laurenceb> WB8ELK: how long were the rails?
[15:39] <WB8ELK> about 10 feet I believe.
[15:39] <theRealSIbot> In real units: 10 ft = 3.05 m
[15:39] <WB8ELK> wonder if the bot does furlongs: 10 furlongs
[15:40] <adamgreig> I think it should say "SI units" not "real units"
[15:40] <adamgreig> 12+j5 feet
[15:40] <theRealSIbot> In real units: 5 ft = 1.52 m
[15:40] <adamgreig> good try theRealSIbot but I think you'll find that is wrong!
[15:40] <craag> lol
[15:41] <Laurenceb> imaginary si bot
[15:41] <Laurenceb> WB8ELK: very interesting stuff, what was launch altitude?
[15:42] <WB8ELK> 75,000 ft
[15:42] <theRealSIbot> In real units: 75,000 ft = 22.9 km
[15:42] <Laurenceb> ok, that sounds workable, dunno if itd reach 100km tho
[15:43] <WB8ELK> Our calculations showed that it would with the motor we designed.
[15:43] <WB8ELK> We reached 36 nautical miles (we will see what the bot does with that one) on our first flight with a 92 pound rockoon.
[15:44] <Laurenceb> interesting, so you were try the "heavy" approach
[15:44] <WB8ELK> we didn't use a boat for that one but had to plan our balloon flight path to make sure it was at least 100 miles off the coast of North Carolina. We had to coordinate with FAA, Navy and Coast Guard for that one.
[15:45] <WB8ELK> The requirement was to lift a 4 kg weight to 100 km (bot will be happy now)
[15:45] <WB8ELK> it was a competition called CATS (Cheap Access to Space)
[15:45] <WB8ELK> We did make the 2000 edition of Guiness on our first flight but the Black Rock flight from the ground launch beat that a couple of years later.
[15:46] Nick change: eroomde -> physicsPedantBot
[15:46] <physicsPedantBot> you mean: 4kg mass to 100km
[15:46] Nick change: physicsPedantBot -> eroomde
[15:46] <WB8ELK> We also used 915 MHz transmitter with widely spaced ground station with accurate time bases to calculate peak altitude on our last flight. Similar to what you proposed for your tiny transmitter
[15:46] <Laurenceb> oh awesome
[15:47] <Laurenceb> good to know that its workable
[15:47] <WB8ELK> we had the ground stations spaced about 200 miles apart in a circle around the rockoon.
[15:47] <Laurenceb> yeah 4Kg is wayyy over anything I was thinking of :D
[15:47] <Laurenceb> ok
[15:47] <SpeedEvil> 4kg would cover teh launcher :)
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[15:55] <WB8ELK> Launrenceb...curiously enough I put one of those type 63 launch tube assemblies on a robot car for my job a few years back. They are amazing when they all fire at once.
[15:55] <Laurenceb> what the heck
[15:56] <Laurenceb> your day job sounds terrifying
[15:56] <fsphil> lol
[15:56] <fsphil> don't let Laurenceb and WB8ELK into the same room together
[15:56] <WB8ELK> yepper it is :-) but we do get to play with rockets
[15:57] <WB8ELK> Here's the vehicle that I helped design: https://en.wikipedia.org/wiki/Gladiator_Tactical_Unmanned_Ground_Vehicle
[15:59] <Laurenceb> do you work for the military or are you a contractor?
[15:59] <WB8ELK> contractor...Eccentrical Engineer
[15:59] <Laurenceb> ah
[15:59] <Laurenceb> sounds like you know your rocketry
[16:00] <WB8ELK> basically design telemetry, video links and control systems
[16:00] <Laurenceb> ok
[16:00] <WB8ELK> yep...we've been doing it for some time.
[16:00] <Laurenceb> so, I've been wondering how well a "self spun" rocket might work
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[16:00] <Laurenceb> after the difficulties encountered with the motorised spin system
[16:01] <Laurenceb> it seems silicon carbide jet vanes in a APCP rocket are feasible
[16:01] <WB8ELK> We managed to do a self-spun ground test by accident from a ground launch test of our first rockoon. It went to 20,000 feet. One of the fins fell off at launch causing it to spin rapidly and then it quickly lost all its fins and was quite stable
[16:01] <theRealSIbot> In real units: 20,000 ft = 6096 m
[16:01] <Laurenceb> so just four fixed vanes to spin the exhaust
[16:01] <Laurenceb> i see
[16:02] <Laurenceb> APCP exhaust is nasty and abrasive, but it looks like silicon nitride or carbide is tough enough
[16:02] <Laurenceb> then just a short ~30cm long tube, like the type63 thing scaled down to Pro24 reload scale
[16:03] <WB8ELK> That will work as long as they survive the exhaust. I did see another intriguing stabilization system once. The fellow put spinning wheel into two steerable fins and spun them up with compressed air to 20,000 rpm.
[16:03] <WB8ELK> highly stable flight.
[16:03] <Laurenceb> interesting
[16:03] <WB8ELK> They call them Rollerons
[16:04] <WB8ELK> https://en.wikipedia.org/wiki/Rolleron
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[16:05] <Laurenceb> thats ingenious
[16:05] <WB8ELK> unfortunately the 12-foot long aluminum rocket's parachute failed that had these on it. He used the other two fins to steer the rocket via Radio Control and had Rollerons on the other two fins.
[16:06] <fsphil> [ot] http://photojournal.jpl.nasa.gov/jpeg/PIA19631.jpg
[16:06] <fsphil> ceres is weird
[16:06] <Laurenceb> yeah, unfortunately fins are next to useless on a >:30km rockoon
[16:06] <adamgreig> should i put a receiver filter before or after a costas loop?
[16:06] <WB8ELK> it smashed into the ground right next to my rental car. The timer circuitry were pulverized into silicon dust but my TV camera transmitter somehow survived.
[16:06] <adamgreig> like, a pulse shaping filter at the bit width
[16:06] <adamgreig> symbol*
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[16:06] <Laurenceb> <adamgreig> that is a very good question
[16:06] <Laurenceb> I've found it improves performance
[16:07] <adamgreig> improves before or after?
[16:07] <adamgreig> i was just planning on a normal rcf
[16:07] <Laurenceb> before
[16:07] <adamgreig> interesting
[16:07] <adamgreig> so traditionally it would go after, right
[16:07] <Laurenceb> yes
[16:07] <Laurenceb> I was very confused by this
[16:08] <Laurenceb> I've yet to find a good reference on it
[16:08] <adamgreig> atm I have something like SDR -> channel tuning & decimation -> AGC -> costas -> RCF -> bit clock recovery -> LLR slicer
[16:08] <Laurenceb> yeah I'd put a filter before the costas
[16:08] <adamgreig> ok I'll have a play
[16:09] <Laurenceb> I found someone who had done a PhD on GPS and discussed this as part of his thesis
[16:09] <Laurenceb> but no good textbook reference on that problem
[16:09] <adamgreig> oh interesting
[16:10] <adamgreig> I would have thought you don't want to LPF before costas because the carrier will likely be shifted in frequency
[16:10] <Laurenceb> I'll try to find a reference
[16:10] <adamgreig> my channel decimation filter is going to allow maybe 25kHz bandwidth so the carrier might well be a fair few kHz away from 0
[16:11] <adamgreig> but the bit rate is 2kbps so the RCF will get rid of a lot above 2kHz
[16:17] <kc2pit> Laurenceb: I'd be cautious about exhaust vanes for stabilization. It might work. But what you'd really like is a something that quickly comes up to a good spin rate, then stops increasing. Exhaust vanes will apply torque throughout the entire burn, and enough to get stabilized quickly might result in excessive spin rates by burnout.
[16:18] <Laurenceb> kc2pit: yeah, but as the gyroscopic stability term is what I need to target, it turns out thats a good thing
[16:18] <Laurenceb> as with the right choice of vane torque, I can keep s_g the same throughout the burn
[16:19] <Laurenceb> and the only problem is the first few tens of milliseconds where spin rate is so low that thrust imbalance comes into play
[16:19] <Laurenceb> thats why you use the short tube
[16:20] <Laurenceb> this idea came from me trying to work out how the type63 system operates :D
[16:22] <Laurenceb> adamgreig: sorry I've lost the main reference, but this is informative
[16:22] <Laurenceb> http://www.navipedia.net/index.php/Phase_Lock_Loop_%28PLL%29
[16:22] <adamgreig> thanks
[16:22] <Laurenceb> so adding a filter on the front is like increasing the integration time, only you dont lose as much responsivity
[16:23] <Laurenceb> optimising the filter is trying, I found a thesis where they had use a kalman to estimate carrier, with the kalman controlling the bandwidth of a filter placed before the costas
[16:24] <adamgreig> huh, weird
[16:24] <adamgreig> wouldve thought if the kalman has a good idea of the carrier freq you then just mix the carrier down to dc
[16:24] <SpacenearUS> New vehicle on the map: 03fsphil_chase - 12http://tracker.habhub.org/#!qm=All&q=fsphil_chase
[16:27] <Laurenceb> thats kind of what its doing
[16:27] <SpacenearUS> New vehicle on the map: 03PRISM001MINI - 12http://tracker.habhub.org/#!qm=All&q=PRISM001MINI
[16:27] <Laurenceb> kalman generates LO
[16:27] <adamgreig> yea i guess works out to the same thing
[16:28] <Laurenceb> then observes via costas discriminator
[16:28] <SpacenearUS> New vehicle on the map: 03PRISM001VERB - 12http://tracker.habhub.org/#!qm=All&q=PRISM001VERB
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[16:29] <SpacenearUS> New vehicle on the map: 03PRISM001VERB - 12http://tracker.habhub.org/#!qm=All&q=PRISM001VERB
[16:31] <SpacenearUS> New vehicle on the map: 03PRISM001 - 12http://tracker.habhub.org/#!qm=All&q=PRISM001
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[16:55] <Lunar_Lander> hello
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[17:02] <infaddict> Hey Lunar_Lander
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[17:14] <SpacenearUS> New vehicle on the map: 03PRISM001LOC - 12http://tracker.habhub.org/#!qm=All&q=PRISM001LOC
[17:14] <SpacenearUS> New vehicle on the map: 03PRISM001DAT - 12http://tracker.habhub.org/#!qm=All&q=PRISM001DAT
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[18:30] <ulfr> Looks like I'll need to add antenna arrays on my roof.
[18:33] <SpacenearUS> New position from 03PS-50 after 0315 hours silence - 12http://tracker.habhub.org/#!qm=All&q=PS-50
[18:37] <ulfr> it's alive!
[18:47] Nick change: fl_0|afk -> fl_0
[18:49] <fsphil> muhaha
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[19:49] <Lunar_Lander> ulfr, what I wanted to ask yesterday
[19:50] <Lunar_Lander> is HABing in Iceland possible?
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[19:51] <ulfr> Lunar_Lander: Well, yes, I've done so quite a few times.
[19:51] <Lunar_Lander> cool!
[19:51] <ulfr> If you want to jump over to launch HABs feel free to let me know.
[19:51] <ulfr> I can help you with the paperwork and etc.
[19:51] <Lunar_Lander> :)
[19:51] <Lunar_Lander> wanted to ask "just so"
[19:51] <ulfr> I have a pretty good connection to the CAA these days.
[19:51] <Lunar_Lander> but yea, maybe one day
[19:51] <Lunar_Lander> cool!
[19:57] <fsphil> I had wild ideas about launching in iceland, and landing a little rover on a volcano
[19:58] <fsphil> satellite uplink to control and send images
[19:59] <Lunar_Lander> nice!
[20:00] <eroomde> that would be fun
[20:00] <eroomde> maybe a few rockets to skycrane it in
[20:00] <fsphil> haha yes
[20:00] <Upu> +1
[20:01] <SpacenearUS> New vehicle on the map: 03G-10 - 12http://tracker.habhub.org/#!qm=All&q=G-10
[20:01] <fsphil> it wouldn't take much
[20:01] <SpacenearUS> New vehicle on the map: 03G-11 - 12http://tracker.habhub.org/#!qm=All&q=G-11
[20:02] <fsphil> the pathfinder/mer airbag method might be easier
[20:02] Hoogvlieger (~Hoogvlieg@ip41-37-211-87.adsl2.static.versatel.nl) joined #highaltitude.
[20:02] <fsphil> but not as awesome
[20:03] <SpacenearUS> New vehicle on the map: 03G-12 - 12http://tracker.habhub.org/#!qm=All&q=G-12
[20:04] Last message repeated 1 time(s).
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[20:05] <SpacenearUS> New vehicle on the map: 03G-12 - 12http://tracker.habhub.org/#!qm=All&q=G-12
[20:05] <SpacenearUS> New vehicle on the map: 03G-11 - 12http://tracker.habhub.org/#!qm=All&q=G-11
[20:06] <SpacenearUS> New vehicle on the map: 03G-12 - 12http://tracker.habhub.org/#!qm=All&q=G-12
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[20:07] <UpuWork> why does that happen ?
[20:07] <SpacenearUS> New vehicle on the map: 03G-11 - 12http://tracker.habhub.org/#!qm=All&q=G-11
[20:08] <SpacenearUS> New vehicle on the map: 03G-12 - 12http://tracker.habhub.org/#!qm=All&q=G-12
[20:09] <fsphil> hmmm
[20:09] <DL1SGP> drop * from ... :)
[20:09] <DL1SGP> err
[20:09] <fsphil> lz1dev?
[20:14] <SpacenearUS> New vehicle on the map: 03TE1LEO-11 - 12http://tracker.habhub.org/#!qm=All&q=TE1LEO-11
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[20:22] <SpacenearUS> New position from 03SPL1 after 032 days silence - 12http://tracker.habhub.org/#!qm=All&q=SPL1
[20:23] xfce1 (~xfce@cpe-85-10-26-137.dynamic.amis.net) joined #highaltitude.
[20:23] <SpacenearUS> New vehicle on the map: 03HB9RSU _chase - 12http://tracker.habhub.org/#!qm=All&q=HB9RSU%20_chase
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[20:39] <SpeedEvil> http://i.imgur.com/fIrl8mr.jpg
[20:39] <SpeedEvil> (on topic)
[20:43] <Geoff-G8DHE> Rather good
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[20:51] <SM0ULC> osx link to fldigi on the list
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[21:18] <HB9RSU_> SpeedEvil: This is Bagan (Birma, Myanmar)... was there last year. Wonderful!
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[21:20] <SpeedEvil> :)
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[21:50] <Laurenceb__> sup, I need £3million
[21:51] <Laurenceb__> please pay now or there will be violence, starvation and arson of government buildings
[21:51] <Laurenceb__> oops that was my charity fundraising email
[21:51] <Laurenceb__> charity fundraising looks fun these days
[21:52] <Geoff-G8DHE> :)
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[22:35] <Chidz> .
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[22:36] <Chidz> .
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[22:40] Nick change: fl_0 -> fl_0|afk
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[23:01] <arjunnaha> What dataloggers can you recommend under £200 to track: temp, co2, humidity, pressure, etc...
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[23:12] <craag> websdr coax is getting busy: https://philcrump.co.uk/photos/suws-websdr/#/view/ID161126
[23:32] <mattbrejza> hae you just added a new one?
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[23:54] <craag> mattbrejza: Not since the new LF antenna about 4 weeks ago
[00:00] --- Wed Aug 26 2015