highaltitude.log.20161216

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[05:55] <SpacenearUS> New position from 03XX after 034 days silence - 12https://tracker.habhub.org/#!qm=All&q=XX
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[06:44] <PE2BZ> !flights
[06:44] <SpacenearUS> 03PE2BZ: Current flights: 03UBSEDS18 434.612.5 CONTESTIA 16/1000 10(64a5), 03UBSEDS21 434.610 CONTESTIA 16/1000 10(2e88)
[06:47] <SpacenearUS> New vehicle on the map: 03Gygggg_chase - 12https://tracker.habhub.org/#!qm=All&q=Gygggg_chase
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[08:58] <SpacenearUS> New vehicle on the map: 03GIT2 - 12https://tracker.habhub.org/#!qm=All&q=GIT2
[08:58] <SpacenearUS> New vehicle on the map: 03GITUP - 12https://tracker.habhub.org/#!qm=All&q=GITUP
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[09:14] <SpacenearUS> New position from 03HIRFW-6 after 0315 hours silence - 12https://tracker.habhub.org/#!qm=All&q=HIRFW-6
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[09:57] <gurlavie_> Hi , a PITS Lora question - how do I get the altitude and telemetry to be layered on the ssdv image ??
[09:58] <daveake> process_image script
[09:59] <daveake> rename the .sample file as process_image, make it executable, install imagemagick, install exiv2
[09:59] <daveake> then edit the script to suit your image size and get the layout you want
[09:59] <gurlavie_> Great ! Thanks !
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[11:23] <SpacenearUS> New position from 03SP5RZP-11 after 03a day silence - 12https://tracker.habhub.org/#!qm=All&q=SP5RZP-11
[11:24] <SpacenearUS> New position from 03M10WX-11 after 0310 hours silence - 12https://tracker.habhub.org/#!qm=All&q=M10WX-11
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[11:38] <Laurenceb_> https://www.kickstarter.com/projects/2112029497/birdemic-3-sea-eagle
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[12:33] <Laurenceb_> https://www.youtube.com/watch?v=oBiZqHpZBV4
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[13:14] <breadalbane> hello!
[13:20] <breadalbane> I am a Hab club pupil - we have received an audio signal into our SDR software but can only see one large peak. Another smaller reflection? appears also. fdigi software cannot decode this. We have checked the serial port setting on advice from pi forum but no dice. help?
[13:20] <SpeedEvil> One peak may be interference.
[13:20] <SpeedEvil> What happens if you power off the PI
[13:22] <breadalbane> the biggest peak vanishes as does the smaller one
[13:22] <adamgreig> probably not actually transmitting any data then
[13:22] <adamgreig> check the software is running on your pi
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[13:31] <Xcom> I am a Hab club pupil - we have received an audio signal into our SDR software but can only see one large peak. Another smaller reflection? appears also. fdigi software cannot decode this. We have checked the serial port setting on advice from pi forum but no dice. help?
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[13:34] <Xcom> is anybody there
[13:49] <craag> Xcom: Could you post a screenshot?
[13:50] <craag> I can't stick around but it will help someone identify what's going on
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[14:14] <Geoff-G8DHE-Lap> Xcom, if you can paste a screenshot of your SDR and dl-fldigi windows on somewhere like http://imgur.com/ and post the link we can likely help.
[14:15] <SpacenearUS> New vehicle on the map: 03BUZZ - 12https://tracker.habhub.org/#!qm=All&q=BUZZ
[14:18] <Geoff-G8DHE-Lap> You may only see a "single" peak unless you zoom in closely, or feed the audio across to dl-fldigi where you should see the two peaks.
[14:21] <daveake> They've posted back in the Pi forum; apparently can't see any replies. Dunno if it's a web firewall issue but it's odd that they can connect via webchat and post but not see replies.
[14:22] <AndyEsser> daveake: suspect it was more that no-one responded immediately
[14:22] <AndyEsser> rather than an actual "no replies" thing
[14:22] <Geoff-G8DHE-Lap> Could be either, if they aren't used to IRC, however they are still logged in.
[14:23] <daveake> hmmm .. the Pi post was at 11:52 so a long time before the current irc posts
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[14:29] <Geoff-G8DHE-Lap> Ah thye've gone
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[14:32] <daveake> Given how long this had taken so far, this surprises me not
[14:33] <Geoff-G8DHE-Lap> Quite, I'll go back to hanging Xmas dec's.
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[16:11] <Ian_> PE2BZ Ben, image 241 409 packets, 0 missing at 1319 today and 242 at 1349 are apparently exactly the same image.
[16:11] <Ian_> Either that or the guys watching the window washing rig haven't moved between pictures? I guess the rig travels upon the rail track . . . and has window cleaners suspended
[16:12] <Ian_> That's on the ssdv of course. Nice from time to time to see what's going on in someone else's back yard.
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[16:31] <PE2BZ> Ian_ thanks ! I had set the grabber interval @ 45 minutes and the TX interval @ 30 minutes . I will check and update tonight
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[16:57] <Ian_> Been out walking and just got back. Just thought that you might be interested. The sun had stopped moving too of course, so not lazy workmen :)
[16:58] <Ian_> It took me a few moments to realise what the rig was. Not frequenting many office blocks this end.
[16:58] <Geoff-G8DHE-Lap> You mean the Earth stood still ??!!!!
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[16:59] <Ian_> That's about right. I had heard that window cleaners were legendry for their relaxed approach to the job, but that took the biscuit . . . speaking of which, where are the biscuits?
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[18:42] <PE2BZ> Ian_ to spoil your story ;-) those where not window cleaners ;-) They had to replace 3 windows where the double glass was leaking. After they are done, next week the window cleaners come :-)
[18:43] <Ian_> They could have installed goldfish in them instead !
[18:43] <Ian_> I become a little bit wiser every day . . .
[18:44] <Ian_> ITV news after the break, the potatoe pie in 'space'. Who was the launcher?
[18:44] <Ian_> daveake ^^
[18:45] <PE2BZ> I was curious too ! It was at nu.nl (now.com in UK perhaps ?) but only the movie, no comment about who, what, why ...
[18:46] <Ian_> I seem to remember someone having comented recently about the pie becoming heated from the temperatures generated on re-entry . . . :) That was maybe two days ago.
[18:46] <Geoff-G8DHE-Lap> Wasn't it the recent BARC4 flight
[18:47] <PE2BZ> But it´s time for some serious business now.... I have re-installed Asphalt 8 and it´s working again :-)
[18:47] <Geoff-G8DHE-Lap> https://tracker.habhub.org/#!mt=roadmap&mz=9&qm=3_days&mc=53.81237,-2.60123&f=BARC4&q=BARC4
[18:47] <Geoff-G8DHE-Lap> Yup Sis
[18:48] <mfa298> it was on the BBC new site yesterday
[18:49] <mfa298> from yesterdays IRC
[18:49] <mfa298> 18:32 < g8fjg> http://www.bbc.co.uk/news/uk-england-manchester-38334437
[18:49] <Ian_> If all the airline pilots go on strike, can we have open skies for a few days do you think? :) optimist eh!
[18:50] <PE2BZ> Sorry KLM strike is cancelled
[18:50] <Ian_> Good news and bad news eh!
[18:51] <daveake> Ian_ No that was SiS not me
[18:53] <Ian_> I was asking you actually, you would be likely to have known. In Ross on Wye I understand that it's more traditional to eat than launch foodstuff.
[18:54] <Ian_> Many thanks though.
[18:55] <PE2BZ> PI ´s all over the place ;-)
[18:56] <Ian_> Maybe fish pie with plaice . . .
[18:57] <Ian_> Sorry Ben I have an unfair advantage there perhaps. plaice is a species of flat fish
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[18:58] <PE2BZ> Thanks :-)
[18:58] <PE2BZ> We call it ¨schol¨
[19:00] <Ian_> Ho ho, with that my evening meal is on the table. No fish in sight.
[19:02] <PE2BZ> Last night I have set my weather sonde DX record to 710 km. The sonde was at 32 km height near the border of Poland / Germany
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[19:12] Nick change: DL7AD1 -> DL7AD
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[20:07] <SpacenearUS> New vehicle on the map: 03ILHAB-1d - 12https://tracker.habhub.org/#!qm=All&q=ILHAB-1d
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[20:49] Action: Laurenceb has poss the lightest tracker yet
[20:49] <Laurenceb> https://sli.mg/4XcBnH
[20:58] <SA6BSS-Mike> cool! 0,5g with battey incl ! :)
[20:58] <fsphil> what's the chip?
[20:59] <Laurenceb> TDA7116F
[21:02] <bertrik> take a look a these bat/bid/insect trackers :) http://www2.holohil.com/transmitters/lb-2x/
[21:07] <gb73d> nice
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[21:55] <Babs> Evening everyone - I'm storing my altitude on my tracker as an unit16_t, and testing at my house (assume pretty much zero altitude with patchy GPS) with the altitude bouncing about above the altitude occasionally reads out in the 65500s
[21:55] <Babs> particularly when the alt drops to zero
[21:55] <Babs> or close to
[21:55] <Babs> which is i guess the unit trying to interpret a negative number and wrapping it around
[21:56] <Babs> not wanting to have the variable as an int32_t for space considerations, has anyone else had this issue in which case
[21:56] <Babs> a) do you ignore it as under flight conditions you will be way above zero anyway so it will never be an issue
[21:56] <Babs> or b) just correct for any altitude >65000 say by setting it to zero
[21:57] <Babs> or have I got all of the above woefully wrong..
[21:58] <SpeedEvil> Or just add a thousand
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[22:00] <Babs> SpeedEvil - was that for me?
[22:08] <SpeedEvil> yes
[22:08] <SpeedEvil> (in that the errors will typically be a few tens of meters)
[22:12] <Babs> ok understood. thanks.
[22:13] <Babs> i guess a thousand may be overkill but 100 would certainly do it
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[22:39] <SpacenearUS> New position from 03XX after 0316 hours silence - 12https://tracker.habhub.org/#!qm=All&q=XX
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[23:33] <AlexG> hello?
[23:34] <AlexG> can anyone recommend any yagi atennae?
[23:34] Nick change: AlexG -> Guest21677
[23:36] <Guest21677> also do they usually have the same connections to sdrs as the antenna that the sdrs come with?
[23:37] <mfa298> most Yagis (and other antennas) will come with one of N Type/ SO239/ BNC/ SMA connectors
[23:38] <mfa298> which may or may not match whats on your SDR (which could be MCX/ SMA/ Belling Lee)
[23:38] <Guest21677> are there adapters?
[23:39] <Guest21677> also what sort of price am i looking at for a yaggi - how cheap is too cheap - and would you recommend their user?
[23:39] <mfa298> there are lots of adapters although in some cases you might want a pigail (short piece of coax with suitable connectots on each end)
[23:39] <mfa298> depends what you want it for.
[23:41] <mfa298> the yago you buy to go on a mast at a home location may not be the same yagi you buy to put in the chase car for DF
[23:41] <Guest21677> do you use a yagi in the chase car?
[23:41] <Guest21677> and which do you recommend
[23:43] <mfa298> If it's for the chase car then you're lookign for something relatively small.
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[23:43] <mfa298> at which point it's gain is likely to be around 9dBi
[23:45] <mfa298> the first antenna to buy for the chase car should be a omni directional magmount antenna though.
[23:46] <Guest21677> what sort of antenna do you recommend for the static locaiton receiver
[23:47] <mfa298> as a starting point for a home station a vertical of some description is the easiest starting point
[23:47] <mfa298> Watson / Comet antennas are popular (like the W50)
[23:48] <mfa298> If you get a yagi you need to be able to point it at whatever you're tracking, which means you also need a rotator
[23:49] <LazyLeopard> I'd go with a co-linear at home (some distance from most flights), probably just a mag-mounted quarter-wave vertical on the chase car (for use in the chase car) and a small yagi (four or five elements?) for direction-finding on foot...
[23:50] <Guest21677> so when you are finding on foot
[23:50] <Guest21677> what are you listening for/looking at
[23:50] <LazyLeopard> Signal strength and direction.
[23:50] <Guest21677> are you just point the yagi in random directions and seeing some signal strenth on a software
[23:50] <mfa298> if you're launching your own balloons you *need* to have a decent chase car system (so magmount antenna on the car as a minimum)
[23:50] <LazyLeopard> If you need to direction-find it means your GPS hasn't sent back a readable position...
[23:51] <Guest21677> oko
[23:51] <Guest21677> how much are small yahi 4/5 element antennas
[23:51] <Guest21677> yagi
[23:51] <LazyLeopard> You could make one for a few quid.
[23:51] <Guest21677> ok
[23:52] <mfa298> if you're chasing then hopfully you've been getting positions during the flight so are close as it comes down to land. You use the position data to get close and hopefully get a position from landing and put that into a suitable app on your phone
[23:52] <Guest21677> thanks alot
[23:52] <mfa298> Direction Finding (where you need a yagi) should only be needed if the payload broke and isn't sending back useable gps data
[23:52] <Guest21677> it says one davbe akermans article of everything that 800g balloons are standard
[23:52] <LazyLeopard> http://www.instructables.com/id/433-MHz-tape-measure-antenna-suits-UHF-transmitte/
[23:53] <Guest21677> can 500/600g ones be used for simple gopro/pi in the sky setups?
[23:53] <mfa298> balloon choice will depend on what you're sending up and how high you want to get.
[23:54] <LazyLeopard> (Other designs are available and may be better, but that gives you an idea.)
[23:54] <mfa298> habhub.org/calc can help you choose a suiable balloon
[23:54] <Guest21677> by what sending up - just a gopro and the raspberry pi in the sky setup (this is a preliminary for a later project)
[23:54] <Guest21677> it looks like the 500/600g seems fine
[23:54] <Guest21677> but from your personal experience, how small a project are they usually used for
[23:55] <mfa298> work out how mcuh your setup will weigh (the Pi+PITS, GoPro, parachute) and have a play on the calculator
[23:56] <Guest21677> also
[23:56] <Guest21677> seeing as i live in manchester
[23:56] <mfa298> ascent rate of 5m/s is a decent place to start
[23:56] <Guest21677> and theres lots of airpoprts
[23:56] <Guest21677> so i will be launching from nearer the middle of england
[23:56] <Guest21677> should i buy a static anntena
[23:56] <Guest21677> as where will i be able to plug it in?
[23:56] <mfa298> getting permission to launch from manchester might be interesting. you may do better to launch elsewhere
[23:56] <Guest21677> except at home
[23:57] <Guest21677> which is far away from the laucnh site
[23:57] <Guest21677> which will be nearer midlands?
[23:57] <mfa298> if you want to recover yoru balloon you *need* to chase it.
[23:57] <Guest21677> so should i buy one, or should i rely on you guys to help out?
[23:57] <Guest21677> i will be chasing it
[23:57] <Guest21677> but im saying do i need a static antenna that is sometimes r ecommended if the launch/chase will not be close to home
[23:58] <Guest21677> how far would the static 'e.g. watson w50' atenna work
[23:58] <mfa298> i you're lucky the listener network may track the balloon down to a few km, you need to be able to get the positions from lower altitudes which means being near it as it comes down.
[23:58] <mfa298> reception is mostly down to Line of Sight, If you've got hills, buildings etc in the way they will limit what you can hear.
[23:59] <Guest21677> yes but what about the larger antenna that people suggest having a static location (e.g. home/school) AS WELL as the chasing car antenna
[00:00] --- Sat Dec 17 2016