highaltitude.log.20130714

[00:02] Action: mfa298 checks the local fttc status and is disappointed to see it's been moved yet again.
[00:03] <mfa298> maybe I should move out of the city and into a small town/village
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[00:03] Action: SpeedEvil would check the local fttc status, but it's not happening till at least the beginning of next year IIRC
[00:04] <mfa298> It was march, then June and now it's september :(
[00:04] <SpeedEvil> GLENROTHES CENTRAL FTTC Calendar Year 2014 Fife
[00:04] Action: SpeedEvil mehs.
[00:05] <SpeedEvil> I could almost get cheaper and faster internet by going with '3' - and adding the 'all you can eat' package to it.
[00:05] <mfa298> I just swapped to a router that should do something more than the original ADSL but It looks like I might have been premature. Obviously not all of the South is as fast as the news makes out
[00:06] <mfa298> I think I have managed similar speeds on three (and *much* faster uploads
[00:08] <SpeedEvil> I'm on 2.2/488k
[00:09] <SpeedEvil> I need to bug my ISP to look at my line profile - it should be set to 2.7 not 2.3
[00:09] <mfa298> I sync at 8 mbps but I'm fairly close to the exchange.
[00:10] <SpeedEvil> My attenuation is about -60dB
[00:10] <SpeedEvil> I'm 6km out
[00:12] <SpeedEvil> http://speedtest.btwholesale.com/ - Download speedachieved during the test was - 2.3 Mbps For your connection, the acceptable range of speeds is 1.2 Mbps-4 Mbps. IP Profile for your line is - 2.96 Mbps
[00:13] <SpeedEvil> The 2.3 figure - with the 2.96 'IP profile' - is due to my ISP capping at their end to avoid congestion. This should be about 2.7 I think.
[00:14] <SpeedEvil> I find it rather annoying that OpenReach won't properly sell uncapped upload DSL
[00:16] <SpeedEvil> I should get about 1.1 up, at least.
[00:17] <Lunar_Lander> btw did you hear about how german telecom wants to cap the internet from 2016 on?
[00:17] <Lunar_Lander> i.e. you get a data volume for a month, if you have more traffic than that, speed gets cut to 384 kbit/s
[00:17] <Lunar_Lander> IIRC
[00:17] <SpeedEvil> Ow.
[00:17] <Lunar_Lander> yea
[00:18] <Lunar_Lander> it actually transpired that you can have the real flatrate still then
[00:18] <Lunar_Lander> but it will be more expensive
[00:18] <mfa298_> a fair number of ISPs here do that sort of thing already, althoguh there are a few unmetered packages out there
[00:20] <SpeedEvil> We totally should setup our own ISP. Just a few blimps with lasers.
[00:21] <mfa298_> I just tried a speedtest on three and it was a bit disappointing (around 2mbps down)
[00:21] <mfa298_> I'm sure I've seen 6+
[00:21] <SpeedEvil> I've just realised that I should probably swap to PAYG on three- with the new tarriff.
[00:21] <SpeedEvil> Non-expiring credit - and 1p/meg.
[00:22] <SpeedEvil> I'm on a £7.50/1G tarriff, and most times I don't use it
[00:22] <SpeedEvil> As it's backup.
[00:22] <mfa298_> I've generally gone for their PAYG+12 for mobile data
[00:23] <SpeedEvil> Is that the preloaded 12G/year package?
[00:23] <mfa298_> yes
[00:24] <mfa298_> when I've looked that's worked out to be the cheapest option
[00:25] <mfa298_> I think I generally hit the 12 months before the 12G
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[00:47] <mfa298_> damn, just spent ages trying to work out why it al stopped working then realised the old router I just turned off was acting as a switch
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[06:36] <heathkid> welcome trelane!
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[08:06] <mclane> ping LeoBodnar
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[08:26] <Herman-PB0AHX> good morning everyone go there balloons in the air today??
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[08:30] <mclane> I dont think so
[08:33] <x-f> Leo's pico floater is scheduled for a launch at 1700 UTC
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[08:36] <G0TDJ_Steve> Is that today x-f?
[08:40] <x-f> yes
[08:40] <G0TDJ_Steve> Cool, might make up (in a small way) for missing yesterday's fun
[08:43] <Herman-PB0AHX> yesterday i was working bad day for me hihihihi so i think i mist nil
[08:44] <G0TDJ_Steve> I was away. Although I did get to tweet and see the tracker occasionally.
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[09:07] <ibanezmatt13> Good morning
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[09:16] <WillDuckworth> anybody have any info on this evening's flight?
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[09:16] <SP9UOB-Tom> morning all
[09:17] <SP9UOB-Tom> solar hot-air baloon is up: http://aprs.fi/#!call=a%2FF6KBN-11&timerange=3600&tail=3600
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[09:20] <G0TDJ_Steve> "<x-f> Leo's pico floater is scheduled for a launch at 1700 UTC" From earlier on
[09:22] <Maxell> SP9UOB-Tom: cool
[09:22] <G0TDJ_Steve> SP9UOB-Tom: What's it's probable max altitude?
[09:23] <Maxell> APRS in airborne stuff isn't allowed in France, eh?>
[09:23] <G0TDJ_Steve> That's a good point Maxell
[09:25] <SP9UOB-Tom> G0TDJ_Steve: i've read about 20km - well see :-)
[09:25] <G0TDJ_Steve> That must be a steep climb. Almost 8k already.
[09:25] <Maxell> Also aprs.fi reports suboptimal path. Extra stress on the aprs network is not someting digipeaters would like
[09:25] <Maxell> but ok, it's sunday so not much traffic
[09:25] <SP9UOB-Tom> Maxell: this is not mine project :-) BTW
[09:25] <Maxell> France != Poland :)
[09:26] <G0TDJ_Steve> Maxell: All these systems will have to share the load if each facet of the hobby is to move forward :-)
[09:26] <SP9UOB-Tom> anyway i want to try with solar baloon :-)
[09:26] <SP9UOB-Tom> Maxell: right
[09:27] <SP9UOB-Tom> Maxell: my aprs with compressed telemerty is on the balcony now: http://aprs.fi/telemetry/a/SP9UOB-11
[09:28] <Maxell> G0TDJ_Steve: a balloon once in a while can't be *that* bad
[09:28] <SP9UOB-Tom> just testing step-up converter for radiometrix XH-1
[09:28] <SP9UOB-Tom> HX-1
[09:28] <G0TDJ_Steve> No, I totally agree Maxell
[09:30] <Maxell> SP9UOB-Tom: how much watts do the solar panels deliver?
[09:32] <Maxell> Also, I see that do you WIDE1-1,WIDE2-2,qAR,SP9UOB-15 not tha much igates in Poland?
[09:32] <Maxell> Here in the Netherlands it's so dense...
[09:32] <SP9UOB-Tom> Maxell: now? 0 ;-) I have 3 energizer lithiums AAA in series :-) But i brought these: http://www.aliexpress.com/snapshot/244171595.html
[09:33] <SP9UOB-Tom> Maxell: they are ~1 Watt/cell
[09:33] <SP9UOB-Tom> Maxell: a'propos path - path in my tracker is changed depending to altitude
[09:34] <SP9UOB-Tom> Maxell: above 2500m there is no path at all
[09:34] <Maxell> wow clever stuff
[09:35] <Maxell> change path on altitude- the higher the more likley you will directly hit an igate
[09:35] <SP9UOB-Tom> also telemetry and position is compressed - data payload is 30 bytes only :-)
[09:35] <SP9UOB-Tom> shorter packet - less network (RF) load
[09:36] <Maxell> yeah that is shorter than some comments/extra descriptin some cars ride the roads here
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[09:36] <Maxell> What will you eb using as transmitter?
[09:36] <G0TDJ_Steve> Maxell: For the noobs amongst us (ME!) Can you give me a quick difference between an iGate and a Digipeater please?
[09:36] <SP9UOB-Tom> Maxell: http://sp9uob.verox.pl/a.jpg this is first version of my project. Its also decodes (with RX connected) AX.25 packets - dsPIC based
[09:37] <Maxell> G0TDJ_Steve: digipeaters decodes packet and sends packet again with one less widen-n
[09:37] <Maxell> igate will send all recieved packets on aprs-is
[09:37] <Maxell> aprs-is is "online aprs"
[09:37] <G0TDJ_Steve> And Wide-n?
[09:37] <Maxell> So eveyone can see evey packet
[09:37] <Wouter-[pa3weg]> morning!
[09:38] <Herman-PB0AHX> morning
[09:38] <G0TDJ_Steve> Is Winde-n like a hop count Maxell ?
[09:38] <Maxell> G0TDJ_Steve: yes.
[09:38] <G0TDJ_Steve> Ahh right. I'm remembering some of my ancient AX.25 stuff
[09:38] <Maxell> If someone is in the car two hops would be suffcient to hit a large reaper
[09:38] <Maxell> repeater
[09:38] <SP9UOB-Tom> Maxell: not exactly. if there is in path NOGATE - igate must not put the packet into APRS-IS
[09:39] <Maxell> it will keep the packet in your reagon
[09:39] <G0TDJ_Steve> OK (Altohug I liked your first version LOL)
[09:39] <G0TDJ_Steve> OK
[09:39] <Maxell> but if you want to do a state wide/county wide packet a larger path is needed
[09:39] <Maxell> up to 6 times
[09:39] <G0TDJ_Steve> So that would be Wide-6?
[09:39] <Maxell> and it spreads like a oil in a pond
[09:39] <SP9UOB-Tom> ..over continent
[09:40] <G0TDJ_Steve> Maxell: So your average beacon would only require Wide-2
[09:40] <Wouter-[pa3weg]> wide6-6 that would be
[09:41] <Wouter-[pa3weg]> the digi will count down the last number, so you can see how many times the packet was already digipeated by a smart digi
[09:41] <G0TDJ_Steve> Right Wide(Total Count)-(Current Count)
[09:42] <Maxell> G0TDJ_Steve: depends on the denseety of the region check https://www.youtube.com/watch?v=-hgGtL0pD7Q
[09:42] <Maxell> yep
[09:42] <Wouter-[pa3weg]> and for the stupid digi´s one inserts the second line wide1-1 (that will be stripped out by a stupid digi)
[09:42] <Wouter-[pa3weg]> wide6-6 in the EU is, however, insane
[09:42] <Maxell> Yep.
[09:42] <G0TDJ_Steve> OK Cheers Maxell I ask because I am trying to build a Raspberry Pi beacon/something for my radio club to use at events.
[09:43] <G0TDJ_Steve> I@ll watch the vid later. I have to pop out just now
[09:43] <Maxell> yeah i'll also be on the road soon
[09:44] <G0TDJ_Steve> Thanks for everyone's help, it's appreciated
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[09:44] <G0TDJ_Steve> I'm aiming to be around for Leos' launch later though
[09:45] <G0TDJ_Steve> Right, better go. Cheers guys.
[09:45] Nick change: G0TDJ_Steve -> G0TDJ_AFK
[09:48] Action: Wouter-[pa3weg] is listening to Daft Punk and grabbing breakfast
[09:49] Action: SP9UOB-Tom is watching http://www.youtube.com/watch?v=NtkUM1wVVi8
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[09:54] <SP9UOB-Tom> REALLY nice video :-)
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[10:04] <Herman-PB0AHX> PA3WEG Wouter look on skype
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[10:14] Nick change: SP9UOB-Tom -> verox
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[10:20] <Wouter-[pa3weg]> thanks herman
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[10:21] <Benny> morning!
[10:21] <Wouter-[pa3weg]> new record of Delfi-C3 decoding?
[10:21] <Wouter-[pa3weg]> morning
[10:21] Nick change: Benny -> Guest65997
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[10:22] <Guest65997> can anyone tell me what the default bit encoding for wiringPi is? 7N1? 8N1?
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[10:24] <Benny_boy> IE crash! :(
[10:24] <Benny_boy> One more time: can anyone tell me what the default bit encoding for wiringPi is? 7N1? 8N1?
[10:26] <Wouter-[pa3weg]> euh...googling wiringpi gives me a website explaining ¨WiringPi is a GPIO access library written in C for the BCM2835 used in the Raspberry Pi.¨
[10:26] <Wouter-[pa3weg]> so I would think you should set that yourself?
[10:27] <Wouter-[pa3weg]> not familiar with WiringPi
[10:27] <Wouter-[pa3weg]> but if it uses the SoC UARTS, you can all set these parameters in the OS
[10:27] <Upu> ping Geoff-G8DHE
[10:29] <Herman-PB0AHX> PA3WEG yes I am very happy as it is today with writing Delfi-C3
[10:30] <Benny_boy> you can over ride/set the bit mode yourself, but I want to understand what my starting point is.
[10:32] <Benny_boy> perhaps I don't need to do anything. I'm digging through daveake's source code looking for insights.
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[10:35] <Benny_boy> got it! 8N2 for reference
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[10:45] <Upu> https://plus.google.com/photos/118244444241111963790/albums/5900419041383647185
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[10:50] <WillDuckworth> who was the girl?
[10:50] cuddykid_ (~acudworth@92.40.253.148.threembb.co.uk) joined #highaltitude.
[10:50] <fsphil> did the sorta failsafe work?
[10:50] <Upu> Lesters Daughter
[10:50] <Upu> yeah everything worked apart from the cord didn't cut
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[10:51] <x-f> we saw her eyes and nose a lot :|
[10:51] <fsphil> switching between photos 17+18 is an odd experience
[10:51] <fsphil> and.. is that a pipe?
[10:51] <Upu> yeah :)
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[10:52] <fsphil> the plane does look cool
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[10:52] Nick change: cuddykid_ -> cuddykid
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[10:53] <Upu> it was very well built and light
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[10:53] <Willdude123> Hi
[10:53] <Upu> for all his crazy ideas he does have a knack for making them
[10:53] <Upu> hi Will
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[10:53] <fsphil> indeed
[10:54] Nick change: G0TDJ_AFK -> G0TDJ_Steve
[10:55] <fsphil> mine would probably look like what you'd expect a paper plane to be
[10:55] <fsphil> and fly just as well
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[10:55] <G0TDJ_Steve> Is there somewhere online I can see images captured from the balloon(s) Upu ?
[10:56] <G0TDJ_Steve> Hey Chris :D
[10:56] <chrisstubbs> morning
[10:56] <chrisstubbs> just
[10:56] <Upu> I have them but I'm sure daveake will post them shortly
[10:56] <G0TDJ_Steve> OK Cool
[10:56] <Upu> all we have is from the Pi
[10:56] <Upu> I have 17 mins of video from the GoPro at about 18km
[10:56] <Upu> which is really nice
[10:56] <mfa298> he mentioned last night that he'd email the list once they're available.
[10:56] <G0TDJ_Steve> Thanks mfa298
[10:56] <Upu> such a shame the camera stopped
[10:57] <Upu> there is also the landing video from the Pi which is good
[10:57] <G0TDJ_Steve> Upu: The trials of experimentation
[10:57] <fsphil> is the rolling shutter effect obvious?
[10:57] <fsphil> I've not tried fast motion with the picam yet
[10:57] <Upu> rolling shutter ?
[10:57] <fsphil> yea .. when moving things go all wobbly
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[10:57] <G0TDJ_Steve> Bending of the image due to panning
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[10:58] <Upu> not really no
[10:58] <fsphil> nice. yea you'd spot it easily if it was bad
[10:58] <chrisstubbs> G0TDJ_Steve, I sent the cheapo board on friday, due to the middle-of-nowhereness of our postbox it should be with you later in the week
[10:58] <Upu> it is quite a wobbly decent as I suspect the wings were trying to fly the damn thing but the tangled parachute wouldn't let it
[10:59] <Upu> good bit when it lands then a second later you can see the impact of the main payload on the tree
[10:59] <G0TDJ_Steve> :D Cheers chrisstubbs I appreciate it. Might give me time to sort the RPi project out
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[11:00] <craag> Morning G0TDJ_Steve
[11:00] <chrisstubbs> Ah quick question while im here cuddykid may be able to answer. Matt (launching next sunday) is really worried about his gopro 2 overheating in flight. Do you think that will be a problem or will it cool down when it gets up a bit?
[11:00] <G0TDJ_Steve> Hey Phil!
[11:01] <G0TDJ_Steve> Sent you an e-mail about 30mins ago craag
[11:01] <craag> Yep got it
[11:01] <G0TDJ_Steve> Coolio
[11:01] <Upu> chrisstubbs it will be fine
[11:01] <Upu> just use the open backed case
[11:01] <craag> I was around for the lohan/spears yesterday, rather closely in fact.. https://www.thecraag.com/photos/index.php?album=lohan-hab-chase/
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[11:01] <chrisstubbs> He wasnt going to use a case
[11:02] <Upu> in fact I suspect you got covered in bits of tree craag :)
[11:02] <G0TDJ_Steve> Nice one Philip
[11:02] <craag> Upu: I did!
[11:02] <chrisstubbs> But cheers anyway, will pass that on
[11:02] <cuddykid> chrisstubbs: go pro 2 should be fine :)
[11:02] <craag> Also one 1q, what was the free lift? trying to work out balloon diamater in the photos.
[11:02] <cuddykid> never had any probs with the 2
[11:02] <cuddykid> only the 3s that have given me grief
[11:02] <craag> or neck lift would be better
[11:03] <Upu> 4.5kg I think
[11:03] <Upu> daveake will know
[11:03] <fsphil> chrisstubbs: I've not seen a gopro 2 overheading
[11:03] <fsphil> heating*
[11:03] <chrisstubbs> He said when he tested it inside his payload box it cut off and was too hot to hold after
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[11:03] <fsphil> ooch
[11:03] <chrisstubbs> Being packed in with foam probably didnt help
[11:04] <chrisstubbs> + that was using a cheap usb charger thing to extend the battery life
[11:04] <fsphil> voltage too high maybe?
[11:04] <cuddykid> shouldn't need to use a charger with go pro 2 + batt pack
[11:04] <cuddykid> I get around 3.5hrs out of them
[11:04] <cuddykid> go pro 3 - yes, need charger
[11:04] <chrisstubbs> He dosent have the bacpack thing On timer mode (photos) he was getting 3 hours without the usb charger
[11:05] <cuddykid> ah right
[11:05] <chrisstubbs> My solution was self adhesive heatsinks, will see how that works :P
[11:05] <fsphil> a cheap canon would probably suit photos better
[11:05] <fsphil> and be less painful if lost :)
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[11:06] <craag> Upu: Helium?
[11:06] <Upu> h2
[11:06] <Willdudeweb> I absolutely love 300 baud.
[11:06] <Willdudeweb> http://imgur.com/f88B9g8
[11:06] <craag> cheers
[11:06] <Willdudeweb> Hellish to decode.
[11:06] <chrisstubbs> Okay will have a think. definitely look at the charge voltage
[11:07] <Willdudeweb> Do I need a bigger shift or something.
[11:07] <cm13g09> morning craag
[11:07] <Darkside> Willdudeweb: 450hz shift is fine
[11:07] <Willdudeweb> Oh.
[11:07] <fsphil> your not even remotely tuned near the signal Willdudeweb
[11:07] <mfa298> Willdudeweb: you might need to increase the filter bandwidth in dl-fldigi though
[11:07] <cm13g09> morning mfa298
[11:08] <Willdudeweb> fsphil: What my radio?
[11:08] <fsphil> Willdudeweb: in fldigi
[11:08] <craag> ello cm13g09
[11:08] <fsphil> the signal looks to be centered around 1500hz
[11:08] <fsphil> you're closer to 2500hz
[11:08] <mfa298> although you might be alright, looking again it looks to be around 300
[11:09] <fsphil> turn SQL off too
[11:09] <Willdudeweb> Why does it look and sound so horrible?
[11:09] <fsphil> the higher the datarate, the more like noise it sounds
[11:09] <fsphil> white noise
[11:10] <mfa298> have you got an antenna on the tx or rx (it might be worth removing them if you do which could make it look better
[11:10] <craag> My calculations, based on 1% pressure, give balloon at 10.4m across in the photos (assuming spherical)
[11:10] <Willdudeweb> AAArgh
[11:10] <Willdudeweb> Erm
[11:10] <Willdudeweb> Yeah, wire, but I'll give it a go.
[11:10] <craag> So about the size of a house :P
[11:10] <G0TDJ_Steve> fsphil: Can you remember, Whas KINGSLEY 300bd?
[11:11] <Willdudeweb> Looks exactly the same.
[11:11] <Willdudeweb> No decodes.
[11:11] <fsphil> G0TDJ_Steve: I think that was 50 baud .. it didn't do ssdv
[11:12] <G0TDJ_Steve> fsphil: Yeah, I think you're right. I was going to show Willdudeweb an image of my capturing
[11:12] <mfa298> Willdudeweb: you more seperation between the paylod and reciever could help as well. I think you're probably getting some added noise in there as the signal is so strong compared to what the radio is used to.
[11:12] <G0TDJ_Steve> fsphil: I see the '50' now
[11:12] <mfa298> what are you using for the reciever at the moment ?
[11:14] <Willdudeweb> FRG yaesu thing
[11:14] <Willdudeweb> I can't really move it far from the source.
[11:14] <G0TDJ_Steve> FRG-7? 7700?
[11:14] <mfa298> might be
[11:14] <Willdudeweb> 965
[11:14] <G0TDJ_Steve> Not heard of that...
[11:15] <mfa298> could be worth turning it's antenuator on.
[11:15] <chrisstubbs> Upu, would be able to use the ukhas batc stream on sunday? :)
[11:15] <Willdudeweb> Kinda working now I have a delay.
[11:16] <fsphil> there is a 300 baud sample on http://www.sanslogic.co.uk/ssdv/ - but no text data in it
[11:16] <G0TDJ_Steve> Willdudeweb: this is a different data rate as fsphil rightly said but it illustrates a cleaner signal: http://i.imgur.com/Ew4zb1e.jpg
[11:17] <Willdudeweb> Yeah well.
[11:17] <Willdudeweb> I can't replicate that.
[11:18] <fsphil> http://www.amateurradio.com/tracking-flying-things-decoding-ssdv-pictures-from-30km-high/
[11:18] <mfa298> Willdudeweb: I'm sure you can, you just need to understand what's wrong and how to fix it.
[11:18] <Willdudeweb> Oh ffs.
[11:18] <Darkside> fsphil: aww yeah SSDV publicity
[11:18] <fsphil> that's 600 baud though, so even worse :)
[11:19] <Willdudeweb> I can take my bbb elsewhere, but not my antenna and radio.
[11:19] <fsphil> "it turns out that if you press S whilst in DL FLDIGI, you can see the image that you are downloading" -- hah, i didn't know that
[11:19] <Darkside> woo
[11:19] <Darkside> i finally have working HF
[11:19] <fsphil> yay!
[11:19] <Darkside> put up a delta loop today, and immediatly worked DX on the IARU contest
[11:19] <fsphil> I was on HF yesterday, trying olivia again. nothing!
[11:20] <Willdudeweb> This really does my head in.
[11:20] <fsphil> I'm wondering if my datamode setup is bad
[11:20] <Willdudeweb> ffs
[11:20] <Willdudeweb> I can't go elsewhere.
[11:20] <G0TDJ_Steve> Willdudeweb: What do you mean, you can't go elsewhere?
[11:20] <bertrik> fsphil: I'm never really sure whether to use USB or LSB when trying to decode digital modes
[11:20] <fsphil> your signal does look 300 baud Willdudeweb, record a bit please
[11:20] <Willdudeweb> i can't move away from the source.
[11:20] <Willdudeweb> kkk
[11:21] <fsphil> bertrik: I've always used USB for data modes
[11:21] <fsphil> even on the <10mhz bands
[11:22] <fsphil> maybe that's where I'm going wrong
[11:22] <fsphil> though yesterday I was on 14mhz
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[11:22] <Darkside> mm
[11:22] <G0TDJ_Steve> bertrik: I always use the convention of 7MHz and below, LSB 10MHz and above USB
[11:22] <Darkside> you dont realyl see domino on <20m
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[11:22] <Willdudeweb> https://dl.dropboxusercontent.com/u/9477294/rtty.wav
[11:23] <fsphil> that wav is silent
[11:23] <fsphil> or mplayer is messing up
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[11:24] <mfa298> it didn't seem to play for me in the vlc ff plugin
[11:24] <G0TDJ_Steve> fsphil: I had to unmute the speaker icon
[11:24] <chrisstubbs> Worked for me in quicktime, as sad as it makes me feel that I still have it installed.
[11:24] <Benny_boy> I can't find the web page for registering a payload with the public recievers. Does anyone have it handy?
[11:25] <fsphil> Benny_boy: http://habitat.habhub.org/genpayload/
[11:25] <Benny_boy> Ta
[11:25] <Willdudeweb> fsphil: It is for the first few seconds.
[11:25] <mfa298> downloading and playing it in vlc worked
[11:25] <fsphil> vlc is silent too
[11:25] <Willdudeweb> Not decoding but ho hum.
[11:25] <mfa298> sounds reasonably like rtty
[11:26] <Willdudeweb> I guess it still works.
[11:26] <fsphil> Willdudeweb: try, in fldigi, Audio -> RX Capture
[11:26] <Willdudeweb> Just not here.
[11:26] <fsphil> I wonder why vlc and mplayer are not working here
[11:27] <chrisstubbs> Willdudeweb, what is that supposed to be sending?
[11:27] <Willdudeweb> RTTY, 73
[11:27] <Willdudeweb> fsphil: Try now https://dl.dropboxusercontent.com/u/9477294/rtty.wav
[11:28] <fsphil> ah better
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[11:29] <fsphil> yea decoding
[11:29] <fsphil> RTTY, 73RTTY, 73RTTY, 73RTTY, 73
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[11:29] <Willdudeweb> You decoded it??
[11:29] <Willdudeweb> I guess I have nothing to worry about then.
[11:30] <chrisstubbs> Didnt work for me :P
[11:30] <fsphil> Willdudeweb: http://imgur.com/iyFutcO
[11:30] <fsphil> I'm using a slightly different version of fldigi
[11:31] <fsphil> some of those rtty options are different
[11:31] <fsphil> but the only important ones are the baud, bits per char, and the shift
[11:31] <fsphil> and making sure the frequency on the waterfall is correct
[11:31] <Hix> thats not 50baud is it?
[11:31] <fsphil> 300
[11:32] <Hix> that'll do it
[11:32] <fsphil> from the sounds of it, the beagle can't do 50 baud from hardware
[11:33] <craag> Nope, chip reference manual sounds 300/600/900/1200...
[11:33] <craag> *says
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[11:34] <fsphil> you could do something ugly like transmitting 0x00 and 0xFF at higher baud rates, and filtering out the faster framing bits
[11:34] <fsphil> which might still be easier than writing a kernel driver for software rtty :)
[11:35] <fsphil> or use audio out if it has it
[11:35] <fsphil> that's been done before
[11:35] <fsphil> basically just a DAC if you bypass the DC filter
[11:35] <G0TDJ_Steve> BBL Guys
[11:36] Nick change: G0TDJ_Steve -> G0TDJ_AFK
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[11:48] <Benny_boy> How many characters for teh CRC16 be? The function I used generated the number 35460, but when I dropped the whole transmission string into the Payload configuration wizard at http://habitat.habhub.org/genpayload/ the page coughed up an error saying the CRC number was too short
[11:48] <chrisstubbs> Benny_boy, can you paste us an example line of your transmission
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[11:52] <Benny_boy> Sorry, the error was "length not recognised".
[11:52] <Benny_boy> $$MG169706,1,11:51:20,51.50226067,-2.5661645,70.9,*18229
[11:53] <chrisstubbs> Okay the checksum is usually one hex byte (4 characters)
[11:54] <SpeedEvil> hex word
[11:54] <Hix> http://i.imgur.com/jYXsFvD.png shows a normal decode
[11:54] <Benny_boy> hmmmmm. OK. Perhaps my CRC function is dodgy
[11:54] <fsphil> it returns a 16-bit number
[11:55] <fsphil> 0-65535
[11:55] <fsphil> but you need to print it in hexadecimal
[11:55] <fsphil> padded to 4 places
[11:55] <mfa298> you probably need to display it as hex rather than decimal
[11:55] <fsphil> 35460 would be 8A84, for example
[11:56] <Benny_boy> in the png file above, what is the '3' before teh asterix?
[11:56] <chrisstubbs> example transmissions: http://bit.ly/18hyPYt
[11:56] <chrisstubbs> Oh sorry just saw hix's one
[11:56] <fsphil> just part of the string
[11:56] <Benny_boy> not part of the CRC then, OK
[11:57] <fsphil> your checksum should be calculated from every character between, but not including, the $$ and *
[11:57] <mfa298> ooh, interesting, looking at a BBB review on the register it comments on the Gui on the Pi currently being all on the CPU but they're working on moving that to the GPU. That could make some of the graphical software (dl-fldigi ?) work a bit better :D
[11:58] <fsphil> hoping so mfa298. they're using Weston, the Wayland compositor thingy
[11:58] <craag> There's some demo youtube videos around, it's not perfect but 100x better.
[11:58] <fsphil> I suspect fltk is slowing it down a bit too though
[11:59] <Benny_boy> ahhhhhhhhhhhh, my asterix is included in the checksum!
[11:59] <fsphil> Benny_boy: common mistake that :)
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[11:59] <Benny_boy> ;)
[11:59] <Hix> is obelix there too :)
[11:59] <Benny_boy> No. He's munching his seventh boar....
[12:00] Action: fsphil only gets that reference now
[12:01] <Benny_boy> nom, nom, nom
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[12:13] <Willdude123> Hi
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[12:31] <Herman-PB0AHX> Good afternoon all goes some air in today?
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[12:32] <Maxell> Herman-PB0AHX: LeoBodnar will launch something todat at 1700 UTC if I remeber correctly
[12:33] <Upu> ping chrisstubbs yes
[12:37] <Hix> its too damn warm in this here house.
[12:38] <SpeedEvil> Hix: The temperature is quite nice and moderate at 10000m. You know what to do.
[12:39] <cm13g09> Hix: it is too hot, yes
[12:40] <mfa298> Hix: I know how you feel and the sun hasn't even reached my side of the building yet. I'm not looking forward to later
[12:40] <Hix> I haven't been over 4000m in a few years, that'd probably give me HACE straight away ;p
[12:40] <x-f> that solar is at 12 km now
[12:40] <x-f> solar balloon*
[12:40] <Hix> its days like this that I wish i owned a kayak
[12:41] <cm13g09> Hix: It's days like this I wish I was working in the data center!
[12:41] <Hix> sod work. ever :)
[12:41] <cm13g09> if only for the aircon
[12:41] <cm13g09> s/working/living/
[12:42] <Hix> better
[12:44] <Hix> theres a wood pigeon in the tree outside and it is the size of a cat!!
[12:45] <fsphil> it's a bad disguise
[12:45] <Hix> heh - it is mammoth though
[12:50] <Willdude123> How do peeps calc crc checksums in python
[12:50] <Willdude123> ?
[12:51] <Benny_boy> If my time feild in a transmission string has a single digit number (eg 12:6:43 instead of 12:06:43), is that going to naff anything up on the web servers that display received data? Can they tollerate this. I'm being a little lazy as fixing this bug in my code will be awkward
[12:51] <mfa298> probably try and find a suitable library
[12:52] <fsphil> Benny_boy: how are you making your strings?
[12:52] <fsphil> printf or some other way?
[12:52] <fsphil> all languages will have some way to format numbers properly
[12:54] <mfa298> on the purely selfish point of view I don't like it when the length of the string keeps changing length (missing leading zeros etc) as it makes me think its a bad string
[12:54] <fsphil> depends. I don't mind it on altitude
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[12:55] <fsphil> or the string counter
[12:55] <mfa298> altitude isn't too bad as it wont change length that often, it's when the string length changes every sentence it can be annoying
[12:55] <fsphil> time should be padded .. though it's purely aesthetic
[12:55] <fsphil> habitat probably don't care either way
[12:56] <Benny_boy> mfa289: I agree completely and I would liek to fix it eventually, but in my code it's not a simple case of padding the zeros on the string stream or what ever.
[12:56] <mfa298> as long as it's got the :s in it.
[12:56] <fsphil> it might be Benny_boy
[12:57] <mfa298> it sounds like the sort of thing that should be easy to fix although if it's python I can't comment there
[12:57] <Darkside> http://xkcd.com/1237/scan/
[12:57] <Darkside> haha
[12:57] <fsphil> python can do C-style formatting
[12:57] <fsphil> I forgot to scan that, does it contain anything Darkside?
[12:58] <fsphil> hah, links to the same comic
[12:58] <Darkside> different text at the bottom
[12:59] <fsphil> ah, very good
[12:59] <fsphil> that links to the other one
[13:00] <fsphil> wonder how many people manage to scan it with the same phone
[13:00] <fsphil> someone'll end up doing it
[13:00] <Darkside> lol
[13:00] <Benny_boy> OK OK!! I'll write the minging bit of clumky code. ;)
[13:01] <fsphil> Benny_boy: %02d would work in C and python :)
[13:01] <mfa298> Benny_boy: most languages provide a function that lets you format your code - e.g. printf in C (and various other languages)
[13:01] <mfa298> s/code/string/
[13:01] <mfa298> it's too hot to think straight
[13:02] <Benny_boy> agreed. I need ice cream
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[13:02] <Benny_boy> Once I've done this launch my next project is liquid nitrogen ice cream
[13:02] <Benny_boy> :)
[13:02] <cyclops_> hi
[13:03] <fsphil> fake snow
[13:03] <fsphil> please make a machine that creates snow :)
[13:03] <fsphil> hiya cyclops_
[13:03] <cyclops_> just wondering, if APRS is legal to use in my country
[13:03] <fsphil> where are you?
[13:03] <cyclops_> should i go with RTTY or APRS
[13:03] <cyclops_> Spain
[13:04] <fsphil> There have been flights there using APRS
[13:04] <fsphil> but do check with a local amateur
[13:04] <fsphil> also check how good the coverage is where you launch from
[13:05] <fsphil> if there are few igates, then rtty would probably work as well
[13:05] <cyclops_> but which system is better?
[13:05] <fsphil> you can get more frequent updates with the rtty method
[13:05] <fsphil> aprs's main positive is the existing network
[13:05] <mfa298> cyclops_: it should be in the amateur radio license terms - you'll probably need an amateur radio license for APRS (if you don't have one already)
[13:06] <cyclops_> hum
[13:06] <fsphil> yea that's an important one
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[13:07] <cyclops_> yeah
[13:07] <cyclops_> but the question is RTTY OR APRS
[13:07] <cyclops_> ?
[13:08] <mfa298> that's probably something you need to research.
[13:08] <cyclops_> http://kj6wmj.torba.us/?p=52
[13:08] <cyclops_> thats a trackuino nano
[13:08] <cyclops_> kinda small lightweight
[13:09] <Darkside> doesnt include the radio
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[13:09] <cyclops_> it does
[13:09] <Darkside> in that picture it doesnt
[13:09] <mfa298> there's more legal hurdles for APRS but there's likely to be a pre existing network. But the UKHAS method of RTTY doesn't need a license (assuming the ISM rules are the same) but the network only really exists in a few countries (UK, Poland, Australia)
[13:09] <Darkside> oh wait
[13:09] <Darkside> yes i see
[13:09] <cyclops_> one sec
[13:09] <Darkside> theres a HX1 on the bottom
[13:10] <cyclops_> there you go
[13:10] <cyclops_> also, -
[13:10] <cyclops_> also, are Aprs receivers cheaper?
[13:10] <Darkside> APRS doesnt go as far witht he same power
[13:10] <Darkside> which is why you need half a watt vs 25mW for RTTY
[13:10] <Darkside> but yes, you can likely find a FM receiver cheaper
[13:11] <cyclops_> for rtty i was going to use a funcube dongle
[13:11] <fsphil> 25mW, so wasteful :)
[13:11] <Darkside> however - and this is a big however
[13:11] <Darkside> you wont receive it over as long a distance
[13:11] <Darkside> funcube dongles are great units
[13:11] <Darkside> i love mine
[13:11] <cyclops_> this guy says that the battery duration is great
[13:11] <cyclops_> one sec ill find the info
[13:11] <fsphil> only because it transmits so infrequently
[13:11] <Darkside> yeah
[13:12] <Darkside> cyclops_: we know about APRS
[13:12] <Darkside> we fly it here occasionally
[13:12] <fsphil> you really can only transmit once every few minutes
[13:12] <Darkside> i've built my own trackuino deriviative
[13:12] <cyclops_> http://kj6wmj.torba.us/?p=171
[13:12] <Darkside> and yes, you need to be very careful to not piss off the local APRS users
[13:12] <cyclops_> im following the development of upus habduino
[13:13] <Darkside> jeez 9v batteries
[13:13] <Darkside> i hope that guy never flew with one of those
[13:13] <fsphil> 2.5 hours really isn't that good
[13:13] <Darkside> 2.5 hours is shit
[13:13] <mfa298> +1 for Funcube Pro+
[13:13] <fsphil> my rtty payload, with uart camera, ran for 20 hours of 4x AAs
[13:13] <Darkside> our aprs payloads runs for 24 hours off 2x AAs
[13:14] <Darkside> Upus runs for longer
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[13:14] <Darkside> heh
[13:14] <mfa298> how long does UPU get from a single AA.
[13:14] <Darkside> 40 hours for RTTY
[13:14] <mfa298> I seem to recall you could measure that in days!
[13:14] <fsphil> yea
[13:14] <Darkside> APRS is less iirc
[13:14] <fsphil> averaged out it would be less power
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[13:15] <cyclops_> arg I hate iphone irc
[13:15] <Darkside> cyclops_: so yeah, one of the big issues with APRS is its infrequenct transmissiont
[13:15] <Darkside> infrequent*
[13:15] <Darkside> you can't update as often as you can with RTTY
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[13:15] <cyclops_> I was saying that the habduino will be ready in as little as 2 weeks time
[13:15] <Darkside> and in teh final stages of a flight, that can really matter
[13:16] <cyclops_> i agree
[13:16] <cyclops_> i think ill go with RTTY
[13:16] <Darkside> a funcube dongle is a good receiver for that
[13:16] <cyclops_> do you use a filter with the funcube?
[13:17] <Darkside> the pro+ doesnt really need it
[13:17] <Darkside> some people here have mentioned putting a HABAmp in front helps
[13:17] <Darkside> which it will do, since it gives an extra 20dB gain
[13:17] <Darkside> but if you're chasing, you should have no problems with the FCD by itself
[13:17] <cyclops_> yes they told me to do so
[13:18] <Darkside> i designed the habamp
[13:18] <Darkside> and i dont think you need it with a FCD+++
[13:18] <Darkside> with a RTLSDR, yes
[13:18] <Darkside> with a FCD++ probably not
[13:18] <cyclops_> oh
[13:18] <cyclops_> nice
[13:18] <cyclops_> less money
[13:18] <Darkside> heh
[13:18] <cyclops_> well ive allready only bought the caneras
[13:19] <cyclops_> *cameras
[13:19] <Darkside> have you started running predictions?
[13:19] <mfa298> I've only ever used the pro+ with just an antenna (no extra preamp/filters)
[13:19] <Darkside> to get an idea of where the balloon could go
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[13:20] <mfa298> I think the habamp probably helps with the original FCD but the new ones are good without it
[13:20] <Darkside> yeah
[13:20] <Darkside> the original FCD had crap filtering
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[13:20] <cyclops_> yes ive started
[13:21] <Darkside> good
[13:21] <Laurenceb_> will there be any more FCD dongles? now elonics is bust?
[13:21] <Darkside> fcd++ doesnt use elonics tuners
[13:22] <Laurenceb_> ah
[13:22] <Darkside> it uses a mirics tuner instead
[13:22] <fsphil> yea no more fcd+
[13:22] <fsphil> it's all fcd++ now
[13:22] <Laurenceb_> does that have a tuneable filter on the input ?
[13:23] <fsphil> switchable I think, it has one for 70cm and 2m
[13:23] <Laurenceb_> oh its fixed bands?
[13:23] <Darkside> that too
[13:23] <Darkside> it has internal filters like the e4000
[13:23] <Darkside> but it also has external filtering
[13:23] <Darkside> SAW filters for 2m and 70cm
[13:23] <Laurenceb_> ah nice
[13:23] <Darkside> and other filters
[13:23] <Laurenceb_> elonics seemed to have got tunable filters down to a fine art
[13:24] <Darkside> i have no idea how they did that stuff
[13:24] <Laurenceb_> pity they went bust
[13:24] <Darkside> its black magic
[13:24] <Darkside> seriously
[13:24] <Laurenceb_> me neither
[13:24] <Darkside> seriously scary silicon stuff
[13:24] <Laurenceb_> i've seen some die photos with crazy silicon inductors
[13:24] <Laurenceb_> and varicaps and stuff, very mental
[13:24] <mfa298> it's a fairly continuous receive (but there's a gap just over 400MHz) and I think it was 10 switchable filters (2 of which are SAW filters for 2/70)
[13:24] <Laurenceb_> 10??? O_o
[13:25] <Darkside> Laurenceb_: ill find you a pic of the pcb
[13:25] <mfa298> it covers HF up to GHz (1900 MHz I think)
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[13:26] <Laurenceb_> this is FCD++ we are talking about?
[13:26] <Darkside> grr
[13:26] <Darkside> so any pics of pro
[13:26] <Darkside> not may of pro plus
[13:26] <Laurenceb_> nvm
[13:26] <Darkside> bugger it
[13:26] <Darkside> ill take one
[13:26] <Laurenceb_> is it opensource/open firmware?
[13:26] <Darkside> lol
[13:26] <Darkside> no
[13:26] <Laurenceb_> if it was open you could add timing sync
[13:26] <Laurenceb_> fail
[13:26] <Darkside> the tuner is NDA'd
[13:26] <Darkside> as usual
[13:26] <Darkside> they all are
[13:27] <fsphil> I took some pics when I first got it
[13:27] <fsphil> no idea where they are now
[13:27] <mfa298> there's a fair bit of information on the FCD site if you look for it.
[13:27] <Laurenceb_> k
[13:27] <Darkside> uploading pic
[13:28] <Laurenceb_> i was thinking it'd be nice to add gps time sync
[13:28] <Laurenceb_> then we could do positioning with it
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[13:28] <mfa298> specs: http://www.funcubedongle.com/?page_id=1201
[13:28] <mfa298> I was wrong - 11 filters!
[13:28] <M0CJM_Neil> Hi All, do we have a launch today?
[13:28] <Darkside> http://i.imgur.com/QW5om4h.jpg
[13:28] <Laurenceb_> omfg
[13:29] <Laurenceb_> crazy filtering :P
[13:29] <Laurenceb_> ah pic32 : MIPS
[13:29] <mfa298> I think half the good stuff on the FCD site is hidden in the comments
[13:29] <Laurenceb_> i see lots of RF switches
[13:29] <Darkside> Laurenceb_: you may be able to do something with that audio codec chip
[13:30] <Laurenceb_> yeah
[13:30] M0CJM_Neil (~neil@host86-139-74-54.range86-139.btcentralplus.com) left irc:
[13:30] <Laurenceb_> pity its not open firmware :(
[13:30] <Darkside> yeah
[13:30] <Darkside> though that may not help
[13:31] <Darkside> depends where the same clock comes from
[13:31] <Darkside> sample*
[13:31] <Laurenceb_> true
[13:31] <Laurenceb_> i guess DVBT with 1PPS into the IF would work
[13:32] <Darkside> eh?
[13:32] <Darkside> you mean the RTLSDRs?
[13:32] <Laurenceb_> yes
[13:32] <Darkside> well they dont have an IF :P
[13:32] <Darkside> well
[13:33] <Darkside> its zero
[13:34] <cm13g09> I just had reason to point somebody at the glossary definition of ISH
[13:34] <cm13g09> in a non-HAB context ;)
[13:37] <Upu> mfa298 48 hours on the 1.8V board
[13:38] <Upu> that one you saw yesterday was a AAA ~ 18 hours
[13:38] <Upu> afk
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[13:41] <Belgium> Hello
[13:41] <Darkside> wow
[13:42] <Darkside> the entire country of belgium has joined our channel
[13:42] <Darkside> we are deeply honoured
[13:42] <Darkside> :P
[13:42] <Belgium> Indeed we have
[13:42] Action: Laurenceb_ plays Belgian anthem
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[13:42] <SP9UOB-Tom> hi all
[13:42] <Belgium> hi
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[13:48] <Belgium> So how is the project going?
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[13:56] <daveake_> He's not one to waffle
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[13:57] <cm13g09> daveake: killing off a clone there?
[13:59] <daveake> yes. lots of blood involved
[13:59] <daveake> Wondered how come there were 2 of me ... just an hidden copy of hexchat
[14:00] <cm13g09> lol
[14:00] <cm13g09> It's not as bad as Helios_STOLEN at times....
[14:00] <daveake> thought it was on another pc somewhere but nope, it was hiding jere
[14:00] <cm13g09> Sometimes we end up with many many Helii
[14:00] <bertrik> I think that happened to me too once, the GUI was gone but the irc client was still running in the background
[14:00] <daveake> yup exactly tht
[14:01] <Darkside> daveake: were you speaking to mr tesla by chance?
[14:01] <Darkside> clones and all
[14:02] <daveake> he'd had enough of his mortal coil
[14:02] <Darkside> (i was referencing the prestige btw)
[14:03] <daveake> I have a new thing to add to the "how not to lose a payload" list ...
[14:03] <Darkside> don
[14:03] <Darkside> dont fly anything from the reg?
[14:03] <daveake> that too :)
[14:03] <daveake> ... "Turn off auto-updates on your car pc so it doesn't spend the first 45 minutes of the chase installing Windoze updates"
[14:04] <daveake> or don't use Windows
[14:04] <Darkside> haha
[14:04] <Darkside> yeah
[14:04] <daveake> had to reboot then wished I hadn't
[14:04] <daveake> Hence lack of updates from the car for a while
[14:04] <daveake> Switched to a netbook when we stopped
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[14:05] <daveake> Did you all see craag's pic? https://www.thecraag.com/photos/index.php?album=lohan-hab-chase&image=jl8b9411_01_cropped.jpg
[14:05] <Darkside> inflated?
[14:05] <Darkside> is that it in the air?
[14:06] <mfa298> that was at 20-25k up
[14:06] <Darkside> how the hell did he get that
[14:06] <Darkside> telescope?
[14:06] <mfa298> with a huge lense (see one of his earlier pics)
[14:06] <mfa298> https://www.thecraag.com/photos/index.php?album=lohan-hab-chase&image=img_2575.jpg
[14:06] <Darkside> interesting
[14:06] <Darkside> i have a 500mm prime
[14:07] <Darkside> might try that next flight
[14:07] <mfa298> we also had a very useful stanger who managed to spot it.
[14:08] <Darkside> that was a 500mm lens too
[14:08] <Darkside> hrmmmmm
[14:08] <Darkside> yeah the problem is the FOV is so small
[14:08] <Darkside> you really need a auto-trackign mount
[14:08] <Darkside> or at least some way of setting the elevationa nd azimith accurately
[14:09] <mfa298> I think that was under 40km total distance - craag was reckoning the balloon was around 10m diameter at that point
[14:09] <craag> Yep planning to make a little sextant like device that I can set angles on next time.
[14:09] <craag> 38km 3d distance I think, balloon ws 31.4km up according to telemetry.
[14:11] <mfa298> we should have done a better job of recording the telemetry as we took the pictures
[14:11] <craag> Well the photo is timestamped in the EXIF, so I jsut looked at the EPT.
[14:12] <craag> It burst quite soon after.
[14:14] <craag> Also got lots of blurry pics, as I snapped away for a while at infinite focus, which wasn't optimal it seems.
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[14:26] <cardre> so is there a funcubedongle pro ++ (can only seem to find a +) that was mentioned earlier?
[14:33] <mfa298> the one you're looking for is the Pro+ (rather than the original ones)
[14:33] <Darkside> cardre: we just refer to it as the FCD++
[14:33] <Darkside> as its FCD + 1
[14:33] <Darkside> (programmer joke)
[14:33] <cardre> saw that on the fcd website, but was confused by the ++, so yeah, pro + seems to be latest
[14:33] <Darkside> yes
[14:34] <mfa298> it get's confusing as there a few varitions of the original one (pro and + from memory)
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[14:34] <G4SGX_Iain> I use a PRo+ and Im very happy with it, sensitivity is good even compared to my base rig but noise level is a little higher. If i can hear it on my ase rig i can hear it on the FCD pro+
[14:37] <Willdude123> Anyone familiar with pyserial? It seems to carry on txes even after my script is stopped.
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[14:41] <cm13g09> Willdude123: how do you mean?
[14:41] <cm13g09> Does it keep transmitting data you're sending it?
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[14:45] <daveake> Willdude123 If you send data to it quicker than it can send it out the port, then yes of course that's what will happen.
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[14:53] <eroomde> Willdude123: how much longer?
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[15:06] <Herman-PB0AHX> there is no balloon flying today? or is my map not up to date
[15:06] <Upu> later on I think
[15:06] <Herman-PB0AHX> i hope
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[15:18] <chrisstubbs> Ah perfect, thanks upu :)
[15:18] <chrisstubbs> will ditch ustream after the appauling show last time
[15:18] <Upu> do you have flash media live encoder ?
[15:18] <chrisstubbs> Nope will download it now
[15:20] <Willdude123> eroomde: Forever.
[15:20] <Willdude123> It just keeps looping over serial.write("RTTY")
[15:20] <Willdude123> And keeps doing it after I've stopep it.
[15:20] <Willdude123> *stopped.
[15:21] <Willdude123> I don't get why/
[15:21] <Willdude123> And if I try and open it again.
[15:21] <Willdude123> And write to it again, it doesn't work.
[15:21] <Willdude123> No error message though.
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[15:23] <Willdude123> Still getting no fucking decodes.
[15:24] <Willdude123> Arrggh
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[15:24] <Willdude123> WTF is happening.
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[15:26] <Willdude123> Oh rv, gets me every time
[15:26] <Willdude123> Apologies for swearing.
[15:28] <Willdude123> Hmm as soon as I start using punctuation and symbols, it messes up.
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[15:30] <Upu> If you swear again Will I'll ban you for 24 hours please stop it
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[15:35] <cm13g09> Willdude123: what happens if you put a time.sleep(1) in between each serial.write
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[15:41] <Laurenceb_> Upu-trololololol
[15:44] <Willdude123> Upu: Okay
[15:44] <Willdude123> Laurenceb_: It's not funny.
[15:45] <Laurenceb_> im laughing
[15:45] <Willdude123> It can't seem to handle numbers.
[15:45] <Willdude123> Well laugh by yourself please.
[15:45] <cm13g09> Willdude123: define "can't handle numbers"
[15:45] <cm13g09> Do you get a traceback?
[15:45] <mikestir> Willdude123: can you post your code, because I use pyserial quite a lot and I've never seen it behave like that!
[15:45] <Willdude123> No.
[15:46] <cm13g09> mikestir: exactly
[15:46] <cm13g09> this sounds very much like a mistake in Willdude123's code - not pyserial.
[15:46] <Willdude123> http://pastie.org/8140147
[15:46] <Willdude123> It doesn't decode then.
[15:46] <Willdude123> But with just "RTTY" it does.
[15:47] <mikestir> does it still transmit indefinitely with the sleep present?
[15:47] <Willdude123> No. I have no clue why that happened before.
[15:47] <cm13g09> Willdude123: ok, so this sounds suspiciously like your process may be getting context switched....
[15:47] <mikestir> I can imagine it would do so without it, because it will just fill the buffer with loads of repeats
[15:48] <Willdude123> Uhuh.
[15:48] <Willdude123> I don't get wtf is happening.
[15:48] <cm13g09> like I say, this could be context switching happening
[15:49] <cm13g09> and your code getting paused
[15:49] <mikestir> is this on beaglebone still?
[15:49] <Willdude123> Haha shooot I forgot how to do python comments.
[15:49] <Willdude123> Yeah
[15:49] <cm13g09> and hence you manage to accidentally lose your timing
[15:50] <Willdude123> What is context switching?
[15:50] <cm13g09> essentially, Willdude123, the processor can only do X number of things at once
[15:50] <cm13g09> on a Quad core processor, X is 4
[15:51] <mikestir> are you expecting this to be 7 data bits or 8?
[15:51] <Willdude123> So I need an if serial.available?
[15:51] <Willdude123> Erm.
[15:51] <cm13g09> Willdude123: no
[15:51] <Willdude123> Dunno .
[15:51] <Willdude123> It just worked.
[15:51] <cm13g09> you'll need to renice your process to realtime priority
[15:51] <mikestir> yeah I think you are decoding it as 7 bit ascii
[15:52] <cm13g09> and if you don't understand the concept of "nice" values, please go and google them
[15:52] <Willdude123> No it's as 8 bit.
[15:52] <mikestir> I doubt it's timing related cm13g09 - the buffer will be managed in kernel space so it will be flushed out to the hardware either by DMA or on interrupt
[15:52] <cm13g09> mikestir: If I remember rightly, mikestir, pyserial does it one character at a time to hw buffer
[15:53] <Willdude123> No decode at all at 7 bpc
[15:53] <cm13g09> therefore there's scope for a context switch between characters going in.... and then being flushed
[15:53] <Willdude123> RRTTY,12.¦..r..R
[15:53] <mikestir> it certainly receives one character at a time, but it still has a buffer in the driver
[15:53] <Willdude123> Uhuh. That's a bit above my pay grade.
[15:54] <cm13g09> yeah, I'll agree with the fact that there's a driver buffer
[15:54] <Willdude123> So how do I solve it?
[15:54] <Willdude123> I don't really understand.
[15:54] <cm13g09> Willdude123: has it decoded correctly at all
[15:54] <cm13g09> ever?
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[15:55] <Willdude123> Yeah
[15:55] <cm13g09> with numbers?
[15:55] <Willdude123> It is decoding half of it.
[15:55] <Willdude123> No
[15:55] <cm13g09> ok
[15:56] <cm13g09> does it decode any numbers properly?
[15:56] <Willdude123> 1 and 2
[15:56] <Willdude123> RRTTY,12.¦..r..R
[15:56] <cm13g09> right, ok
[15:56] <mikestir> do you get that same result every time around?
[15:56] <Willdude123> This is f****** challenging.
[15:56] <Willdude123> Yes
[15:56] <daveake> parity
[15:57] <Willdude123> What about it?
[15:57] <daveake> 1 and 2 will have the same parity bit as each other
[15:57] <Willdude123> Ok...
[15:57] <daveake> if you have parity wrong then half (roughly) the characters will fail to decode
[15:57] <daveake> as in half the character set
[15:58] <mikestir> R and Y would have opposite parity
[15:58] <cm13g09> good spot daveake
[15:58] <daveake> damn I was hoping that wasn't the case :)
[15:58] <daveake> Couldn't be bothered to check :)
[15:58] <mikestir> yeah I though it looked good. I already had the asciitable up when I was looking for a 7 bit/8 bit pattern
[15:59] <Willdude123> Right, how do I fix the parity?
[15:59] <daveake> I'm kinda surprised you're asking that at this stage
[15:59] <daveake> As you know how to do it in dl-fldigi
[15:59] <daveake> and you know how to do it in Python
[16:00] <mikestir> what are you receiving it on? Is that end known-good?
[16:00] <Willdude123> I know it in dl-fldigi.
[16:00] <Willdude123> Not python.
[16:01] <Willdude123> But there are so many types.
[16:01] <mikestir> pyserial defaults to no parity
[16:01] <daveake> Well you NEED to know
[16:01] <daveake> How do you expect to set the receiver correctly if you don't know what the transmitter is doing?
[16:01] <Willdude123> IDk
[16:02] <daveake> exactky
[16:02] <Willdude123> I'll JFGI
[16:02] <daveake> That would be a very good idea
[16:02] <Willdude123> Okay.
[16:03] <Willdude123> OK. Right.
[16:03] <Willdude123> So how do 1 and 2 have the same parity bit?
[16:04] <mikestir> they have the same number of 1s in their binary value
[16:04] <daveake> They have the same number of 1s in the binary value
[16:04] <mikestir> lol
[16:04] <daveake> lol
[16:04] <daveake> stop that
[16:04] <daveake> :)
[16:04] <mikestir> haha
[16:04] <Willdude123> stop that
[16:05] <Willdude123> I'll need a conditional to check if the string to tx's length is odd or even, and then ser.write(txstring+parity bit) ?
[16:05] <daveake> eh?
[16:05] <cm13g09> Willdude123: no, parity is per byte
[16:05] <daveake> No you SET the PORT to use NO PARITY
[16:05] <Willdude123> Oh yay
[16:05] <Willdude123> Ah I see.
[16:05] <daveake> then you do the same at the receiver
[16:05] <daveake> You're txing BYTES the UART does the BITS
[16:06] <Willdude123> That's clearer, although I thought it used none by default.
[16:06] <mikestir> it does
[16:06] <mikestir> if you want something else you add parity=PARITY_EVEN, or parity=PARITY_ODD to the constructor
[16:06] <daveake> So Willdude123 now you know it has no parity, just set the same in dl-fldigi
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[16:07] <daveake> You also of course need to get the stop bits the same (which will be 1) and bit length (8 I think but check)
[16:08] <Willdude123> nano rtty
[16:08] <daveake> fail
[16:09] <Willdude123> Heh
[16:09] <Willdude123> But parity on dl-fldigi is set to none too.
[16:10] <Willdude123> And the port is set by default to not use parity.
[16:11] <mikestir> Might be worth recording a bit with audacity so you can look at the timing
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[16:12] <Willdude123> So the problem isn't parity?
[16:14] <daveake> If they match at each end, then no of course not
[16:14] <mikestir> Have you tested the UART at 300 baud with a direct connection to a PC?
[16:15] <Willdude123> No.
[16:15] <Willdude123> Can't.
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[16:16] <Willdude123> This is fu***** annoying.
[16:16] <Willdude123> I'll check the bps.
[16:16] <Willdude123> *bpc
[16:16] <chrisstubbs> Willdude123, do you not have your ftdi cable?
[16:16] <Willdude123> It's 5v
[16:16] <mikestir> check the datasheet, but iirc the ftdi is 5v tolerant
[16:18] <Willdude123> This obviously will never work.
[16:19] <Willdude123> I'm taking a break from this fuck*** thing.
[16:19] <Willdude123> You can tell, it's f***** up and always will be, because if I have to use the ftdi cable, I'll just discover it doesn't work.
[16:20] <mikestir> it's always possible there is a bug in the serial driver at 300 baud
[16:20] <mikestir> it's probably not exactly well tested!
[16:20] <mikestir> although the sitari uart is basically a 16550
[16:20] <mikestir> sitara*
[16:20] <mfa298> Willdude123: language!
[16:21] <Willdude123> So what would I do when I find there is a bug?
[16:21] <chrisstubbs> rewrite the kernel
[16:21] <chrisstubbs> or send rtty by other means
[16:23] <mfa298> if it's a bug the question comes down to whether it's your code, the OS/Kernel or the hardware
[16:23] #highaltitude: mode change '+o DanielRichman' by ChanServ!ChanServ@services.
[16:23] #highaltitude: mode change '+o Upu' by DanielRichman!~daniel@unaffiliated/danielrichman
[16:24] #highaltitude: mode change '+b Willdude123!*@*' by Upu!~Upu@2a00:14f0:e028:0:f86a:c049:a332:610a
[16:24] Willdude123 kicked from #highaltitude by Upu: Willdude123
[16:25] <Upu> took me a while to remember the commands been a while
[16:25] <daveake> Yoda just now: "The boy has no patience"
[16:25] <Upu> thats not the hardest ban mask to get round...
[16:26] #highaltitude: mode change '-o Upu' by Upu!~Upu@2a00:14f0:e028:0:f86a:c049:a332:610a
[16:26] <daveake> I did think it a bit silly that the mask shows up in IRC
[16:26] #highaltitude: mode change '-o DanielRichman' by DanielRichman!~daniel@unaffiliated/danielrichman
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[16:28] <mfa298> you can look up the bans on a channel anyway so doesn't make much difference if you see the ban mask in irc
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[16:32] <Laurenceb_> trolled
[16:33] <mfa298> hmmm, I need a balloon to track now, I've got ads-b and ais going at the moment.
[16:34] <daveake> mfa298, ok didn't know that
[16:35] <mfa298> if you do "/mode +b" in the channel it will show the bans (I had to look it up)
[16:36] <Steffanx> but you have to be in the channel ..
[16:37] <mfa298> you can put the channel name in as well before the +b if you've not in the channel
[16:37] <Steffanx> That's not what you said :P
[16:39] <Laurenceb_> +/b/
[16:40] <Steffanx> That's your division
[16:40] <Laurenceb_> its where willdude will be heading now
[16:40] <Laurenceb_> back to troll academy
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[16:51] <jcoxon> Afternoon
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[16:51] <Geoff-G8DHE> Afternoon gathering for B-6 are we ?
[16:54] <jcoxon> What's special about B-6?
[16:54] <jcoxon> Any new features?
[16:57] <Geoff-G8DHE> Not sure haven't heard from leo yet unless he has set up a page already lets look
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[16:58] <Geoff-G8DHE> Nope no b-6 page on his site yet
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[16:58] <jcoxon> Hehe, he is pushing ahead with launches
[16:59] <Geoff-G8DHE> Its nice that the signals are pretty srtable as well, gives you a chance to look at the data rather play being a tuning knob all the time ;-)
[17:00] <Laurenceb_> id hope for some power saving
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[17:00] <jcoxon> Yes, he has a superior design
[17:00] <Laurenceb_> if he repeats B5 without sensors and some more power saving
[17:01] <Laurenceb_> shoulds give impressive results
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[17:01] <Laurenceb_> looks like higher altittude and lower mass payload is the key to superpressure working
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[17:01] <jcoxon> That said he is going for data rather than duration currently
[17:02] <jcoxon> The biggest power saving will be gps which is well established
[17:07] <Geoff-G8DHE> Ah its a long float attempt accroding tothe payload doc
[17:07] <Geoff-G8DHE> *according
[17:08] <Geoff-G8DHE> sentence_id,time,latitude,longitude,altitude,satellites,battery,main_bus_b,temperature_internal,system_status
[17:09] <jcoxon> Cool
[17:09] <number10> shame its not heading for poland (not that I have checked predictions)
[17:10] <jcoxon> less altitude variation at higher altitudes
[17:10] <eroomde> where is it heading roughly?
[17:10] <eroomde> jcoxon: are you in lond?
[17:10] <jcoxon> Nope
[17:10] <jcoxon> Whitstable
[17:11] <jcoxon> you?
[17:11] <eroomde> ah still
[17:11] <eroomde> nice
[17:11] <number10> heading france again i think
[17:11] <eroomde> oxfork
[17:11] <eroomde> oxford
[17:11] <eroomde> freudian slip
[17:12] <Geoff-G8DHE> A predict for now says http://predict.habhub.org/#!/uuid=6cede7d9b78eeeb020dc38ca0e9f9ebc3fd6b657
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[17:12] <Geoff-G8DHE> mond you thats not the main one not for Pico gheights
[17:12] <eroomde> so yep, right out over france
[17:13] Action: Geoff-G8DHE did I really type the above?
[17:13] Action: Geoff-G8DHE it was the cat
[17:13] <jcoxon> Eroomde back tomorrow
[17:14] <craag> What flaot alt was B-5?
[17:15] <jcoxon> 6.5ish
[17:15] <Geoff-G8DHE> It was 730Km before we lost B-5
[17:16] Nick change: G0TDJ_AFK -> G0TDJ_Steve
[17:16] <G0TDJ_Steve> Well, that took rather longer than I anticipated.....
[17:16] <G0TDJ_Steve> Good evening guys
[17:16] <qyx_> where do you source these sarantel gps antennas from?
[17:16] <craag> hmm http://predict.habhub.org/#!/uuid=1a17120c801bb3106b8c44a4add2402dd730b63d
[17:17] <jcoxon> With a bit of prep we could track something completely across Europe
[17:17] <craag> that pred: visit ALL the foreign trackers!
[17:18] <G0TDJ_Steve> Wot no Leo?
[17:18] <Steffanx> lol craag :D
[17:21] <craag> qyx_: Hab supplies, although he has limited stock (they've gone bust)
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[17:23] <qyx_> hm, 6.3gbp without saw and lna
[17:24] <qyx_> there are some for 22eur on farnell
[17:24] <G0TDJ_Steve> Does anyne know if Leo is launching tonight?
[17:24] <Geoff-G8DHE> Its on the calendar, his Rx is on but no sign of him yet maybe a problem at launch site ?
[17:24] <mfa298> I don't think he's appeared on here today
[17:25] <G0TDJ_Steve> Yeah, Geoff-G8DHE Maybe....
[17:25] <G0TDJ_Steve> We can hope
[17:25] <G0TDJ_Steve> ..Hope that he will appear and there's no probs of course
[17:26] <Geoff-G8DHE> He was on here last at 13:57
[17:31] <Herman-PB0AHX> wat is the frequentie off AVA ??
[17:32] <craag> Herman-PB0AHX: AVA is just testing.
[17:32] <craag> We're waiting to see if B-6 turns up.
[17:32] <Herman-PB0AHX> :-( ok
[17:33] <Herman-PB0AHX> ok en frequentie of b6 is the same as B$ and B% ?
[17:33] <Herman-PB0AHX> b4 and b5
[17:33] <craag> should be
[17:34] <Herman-PB0AHX> ok
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[17:47] <Geoff-G8DHE> Hope all is OK...
[17:48] <fsphil> maybe he's gone to C1
[17:48] <Wouter-[pa3weg]> waiting for B6?
[17:48] <Wouter-[pa3weg]> (hi herman!)
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[17:50] <Herman-PB0AHX> me to Wouter but not yet
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[18:04] <G0TDJ_Steve> SP3OSJ de G0TDJ PSE K
[18:04] <G0TDJ_Steve> There's a balloon callsign AVA on tracker in Poland
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[18:05] <craag> heh, I think someone's playing with the code.
[18:05] <G0TDJ_Steve> Oh OK
[18:06] <craag> ie the AVA code.
[18:06] <G0TDJ_Steve> Time to see what's on the box *yawn*
[18:06] <craag> yeah.. habtv is a little disappointing tonight.
[18:07] <costyn> hello from sunny Curacao
[18:07] <G0TDJ_Steve> Good day to you
[18:08] <Herman-PB0AHX> Hoi Costyn and nice wether over there ??
[18:11] <fsphil> good afternoon costyn
[18:11] <costyn> Herman-PB0AHX: yes, quite warm
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[18:12] <costyn> fsphil: thx :)
[18:12] <Herman-PB0AHX> Costyn you miss the Dutch weather certainly hihihihi
[18:13] <costyn> Herman-PB0AHX: not really
[18:13] <fsphil> finding internet is the most important thing, glad you've got that sorted
[18:13] <costyn> :P
[18:13] <costyn> yea glad its working now :)
[18:13] <fsphil> good flight?
[18:13] <costyn> had some trouble sorting out all the disconnected equipment
[18:13] <costyn> mostly yea
[18:14] <mfa298> if the flight launches in 45 minutes it'll be competing with TopGear
[18:15] <daveake> Some say it breathes helium and whistles strangely
[18:16] <fsphil> and sometimes it can be found wandering around in woods, looking up
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[18:17] <Lunar_Lander> evening
[18:18] <costyn> heheh
[18:21] <Upu> who put Ava on the map ? :/
[18:21] <daveake> lol
[18:22] <Upu> at least the geofence is working
[18:22] <Lunar_Lander> I am excited, found a paper about the third european stratosphere flight at NASA
[18:22] <Lunar_Lander> (1934)
[18:22] <Lunar_Lander> but it is in french
[18:22] <eroomde> you, metaphorically, with all your tireless contributions to hab
[18:22] <Upu> remind me to change the calls sign
[18:22] <Upu> oh wait
[18:22] <Upu> pls tell me they've amended my APRS call sign
[18:22] <Upu> ah good
[18:23] <Upu> thanks Ed :/
[18:24] <Upu> must remember to amend the call sign to NULL next time
[18:27] <eroomde> always here to help
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[18:39] <Herman-PB0AHX> yessss B6 on screen here
[18:40] <craag> :DD
[18:40] <Upu> good job we almost went 24 hours without a launch
[18:40] <craag> lol
[18:41] <craag> What's Leo's usual freq?
[18:41] <mfa298> 434.500
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[18:41] <Herman-PB0AHX> I got almost withdrawal symptoms
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[18:41] <Upu> lol
[18:42] <SP9UOB-Tom> Upu: no! I just launched 240L binbag :-)
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[18:42] <SP9UOB-Tom> but without tracker :-)
[18:42] <Upu> haha bit late in the day for a solar
[18:42] <Lunar_Lander> xD
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[18:42] <SP9UOB-Tom> Upu: i have some heluim left :-)
[18:42] <LeoBodnar> Gentlemen, B-6 is off and away on 434.500MHz
[18:42] <SP9UOB-Tom> Upu: french solar is still up
[18:43] <SP9UOB-Tom> http://aprs.fi/#!mt=roadmap&z=11&call=a%2FF6KBN-11&timerange=43200&tail=43200
[18:43] <Upu> not going very up Leo :)
[18:44] <LeoBodnar> MAX-7 is complete turd. Had to replace a module on the spot!
[18:44] <Upu> nice SP9UOB-Tom what is that ?
[18:44] <Upu> any pics ?
[18:44] <Upu> in what way Leo ?
[18:46] <LeoBodnar> later! driving home :)
[18:46] <SP9UOB-Tom> Upu: http://alerte-radiosondes.blogspot.com/2013/07/ballon-radioamateur-f6kbn-11-le.html
[18:46] <G0TDJ_Steve> Listening here in Crayford LeoBodnar
[18:46] <SP9UOB-Tom> upu: 4m in diameter
[18:46] <Upu> that pretty damn impressive
[18:47] <G0TDJ_Steve> WOW.....
[18:47] <SP9UOB-Tom> Upu: But the altitude is very dangerous
[18:47] <Upu> Yes I know
[18:48] <SP9UOB-Tom> http://aprs.fi/info/graphs/a/F6KBN-11 look at the altitude graph
[18:48] <Upu> looking at Flightradar24
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[18:49] <eroomde> it'll collapse in about 3 hours
[18:49] <eroomde> come down like a stone
[18:49] <Upu> its exactly the same crusing hight as the planes
[18:49] Nick change: junderwood -> junderwood_M0JCU
[18:50] <junderwood_M0JCU> I like these frequency-locked flights.
[18:50] <junderwood_M0JCU> No need to be at the radio - pretune it and leave it to it :)
[18:51] <G8KNN> Dead easy to tune :)
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[18:51] Nick change: Kevin -> Guest82804
[18:51] <junderwood_M0JCU> and heading straight for me. Shame it's clouded over
[18:51] <Upu> it has actually got a few planes within 2-5 miles of it
[18:52] <Guest82804> hi all Is B-6 transmitting on 434.600?
[18:52] <G8KNN> 434.500
[18:52] <Guest82804> ok thanks
[18:53] <x-f> what is AVA doing in Poland?
[18:54] <mattbrejza> Upu is on holiday
[18:54] <x-f> -.-
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[18:55] <Laurenceb_> whats B-6 doing then>
[18:55] <Upu> x-f someone appears to be using my code
[18:55] <Upu> that French solar must be visible from all those planes around it
[18:56] Action: Laurenceb_ checks out aprs
[18:56] <Upu> 3 or 4 within 2 miles at same alt
[18:57] <Laurenceb_> B-6 is domineo?
[18:57] <Upu> yeah
[18:57] <Laurenceb_> whats changed? more power saving?
[18:58] <Upu> no idea
[18:58] <Upu> was meant to be a MAX7 but Leo said something about it being crap
[18:58] <Upu> which is concerning
[18:58] <craag> I wonder if he tried to use it with his wire whip antenna.
[18:58] <db_g6gzh_> first green
[18:58] <craag> It may be it doesn't have as much frontend filtering as the max-6.
[18:59] <SP9UOB-Tom> French solar is descending now
[18:59] <mattbrejza> well one has already died on steve (although he reckons it was dodgy, but still)
[18:59] <iain_g4sgx> sori whats the frequency?
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[18:59] <db_g6gzh_> 434.5
[18:59] <Laurenceb_> wait what was it before?!
[18:59] <Laurenceb_> MAX6 ?
[18:59] <Upu> well LeoBodnar is using a wire antenna craag
[19:00] <LeoBodnar_> Gah! MAX-7 has taken 2 hours of my life!
[19:00] <Upu> whats up with it Leo ?
[19:00] <LeoBodnar_> Stop locking up with any antenna. Just completely deaf
[19:00] <eroomde> i want to here this too
[19:00] <eroomde> as i just bought 10
[19:00] <LeoBodnar_> Does not even pick up timing signal
[19:01] <Upu> not even the chip antenna ?
[19:01] <LeoBodnar_> Yes, even the chip one
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[19:01] <Laurenceb_> so are you flying a max7?
[19:01] <eroomde> did you just have 1 to try or a bunch?
[19:01] <LeoBodnar_> I had to unsolder it and solder another one on
[19:01] <LeoBodnar_> Could be just a daft sample
[19:01] <Laurenceb_> maybe you fried the rf?
[19:01] <Guest82804> got it man its quite
[19:01] <Laurenceb_> it could be using a sensitive LNA
[19:02] <Guest82804> $$B-6,194,190141,52.05542,-1.01687,969,7,1.61,2.e827,S*2f5d
[19:02] <LeoBodnar_> Just one, developed and test OK, pre-flight ok, power up, no lock! Argh
[19:02] <Laurenceb_> <LeoBodnar_>: whats changed on B-6 ?
[19:02] <LeoBodnar_> I am not saying MAX-7 is bad just had one fail on me on a launchpad
[19:02] <eroomde> hmm, sounds like it musta got zapped
[19:02] <LeoBodnar_> AA battery. Jumbo baloon
[19:02] <Laurenceb_> yeah i agree with eroomde
[19:03] <LeoBodnar_> balloon
[19:03] <Laurenceb_> oh
[19:03] <Upu> I just have concerns the wire antenna you're using has just allowed static to zap it or something
[19:03] <Laurenceb_> interesting
[19:03] <eroomde> their power-saving options are so promising
[19:03] <Laurenceb_> what Upu said
[19:03] <Laurenceb_> so add an ESD diode :P
[19:03] <LeoBodnar_> If you can make it to stay in one eroomde
[19:03] <Upu> that said they are quite robust I've yet to have one back yet where the module has failed
[19:04] <Laurenceb_> so anyways...
[19:04] <Upu> its always the antenna
[19:04] <Laurenceb_> what float altitude do you predict?
[19:04] <eroomde> LeoBodnar_: ok fill me in on your issues
[19:04] <eroomde> got it working fine on a max 6
[19:04] <LeoBodnar_> It has a life of its own... Spend all day trying to figure out how to keep it in power saving mode. The mA meter is all over the place
[19:04] <Upu> yeah thats true
[19:04] <eroomde> which powersaving mode are you going for?
[19:04] <LeoBodnar_> I have dropped MAX-7 in place of MAX-6 and all hell broke loose
[19:04] <Upu> averages out lower through
[19:06] <mattbrejza> lol havnt touched ASTRA since last launch, decoding well apparently
[19:07] <LeoBodnar_> The first thing happened is it won't give me data ready signal on TxD line so my all comms broke down
[19:07] <eroomde> hmm, well i'm intrigued for when my batch arrives
[19:07] <LeoBodnar_> I need to cool down a bit XD
[19:07] <Laurenceb_> what float altitude do you predict?
[19:07] <LeoBodnar_> I use I2C with data ready configured on TXD
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[19:08] <eroomde> ah right
[19:08] <Laurenceb_> neat trick
[19:08] <eroomde> i've just been using uart
[19:08] <LeoBodnar_> Laurenceb_: 5500 m
[19:08] <eroomde> for everthang
[19:09] <Laurenceb_> ok, dunno if it will pick up dew at that height
[19:09] <Laurenceb_> will be interesting to see
[19:10] <Geoff-G8DHE> Interesting prediction as well :-) http://predict.habhub.org/#!/uuid=8f5e0df8d6f818d02dd7cbaf18789376f03acd97
[19:10] <SpeedEvil> Dew happens when surface temp falls below air.
[19:10] <LeoBodnar_> I have left chip antenna in this one
[19:10] <SpeedEvil> This can rapidly happen at night with clear skies.
[19:11] <Lunar_Lander> btw I like that Daniel repaired the predictor the way it is
[19:11] <Lunar_Lander> with avoiding the individual forecast download
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[19:12] <Laurenceb_> SpeedEvil: if you are up at <0C altitude you are ok
[19:12] <LeoBodnar_> I probably need ESD protection on the antenna input
[19:12] <SpeedEvil> Well - not really - you then just get ice, not water.
[19:12] <Laurenceb_> previous B-x launches were at about 7Km and well below zero
[19:13] <SpeedEvil> The balloon temp may differ.
[19:13] <Laurenceb_> yeah but its less likely to sublime onto the balloon
[19:13] <SpeedEvil> resublime?
[19:13] <Lunar_Lander> LeoBodnar_, do you have results on the superpressure of B-5 yet?
[19:13] <Laurenceb_> if everything is at around -10C, as it was before
[19:13] <Laurenceb_> there is probably no issue
[19:13] <Laurenceb_> 22C, too hot atm :S
[19:13] <SpeedEvil> Laurenceb_: yeah - it's only if the air is comparatively warm, and the balloon can efficieintly radiate to space.
[19:14] <Laurenceb_> from B-5 we saw that the bouyancy overnight is fragile
[19:15] <Laurenceb_> and envelope was probably slightly cooler than the air
[19:16] <Maxell> 20:42:51 < LeoBodnar> Gentlemen, B-6 is off and away on 434.500MHz
[19:16] <Maxell> whoops
[19:16] <Laurenceb_> does this have "night mode" ?
[19:16] <LeoBodnar_> Yes, it does from 23:00 till 05:00 UTC
[19:17] <Laurenceb_> cool
[19:17] <Laurenceb_> we might need to find some hams in france/spain :P
[19:17] <Wouter-[pa3weg]> it is landing on a tower on the map ;)
[19:18] <bertrik> Laurenceb_: what do you mean by night mode?
[19:19] <Laurenceb_> power saving
[19:19] <Wouter-[pa3weg]> it turns on its UFO lights ;)
[19:19] <Laurenceb_> heh its flying over bletchley park
[19:19] <Wouter-[pa3weg]> more reasun for UFO lights ;)
[19:19] <Wouter-[pa3weg]> *reason
[19:20] <daveake> It's not flying towards me, for a change
[19:20] <Geoff-G8DHE> On B-5 between 23:00 and 05:00 it saved power by spending 4 mins with only a very short 1 second beep and no telemetry, then a couple of mins back to normal with GPS and telemetry
[19:20] <Wouter-[pa3weg]> the national radio center could track it then..!
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[19:21] <Wouter-[pa3weg]> forgive my americanisms, centre
[19:22] <iain_g4sgx> here she comes, bang on blue
[19:22] <Herman-PB0AHX> Wouter dit u see any trace yet ??
[19:23] <Laurenceb_> 19C
[19:23] <Laurenceb_> come on cool down
[19:23] <Upu> This is on an AA
[19:23] <Upu> so should be 48 hours
[19:23] <Lunar_Lander> so it can reach spain or so?
[19:23] <iain_g4sgx> 1st decode on -17db as ever
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[19:24] <Laurenceb_> i calculate 51hours by simple scaling
[19:24] <Lunar_Lander> oh nevermind the trajectory bends around
[19:24] <Geoff-G8DHE> Anybody have a dial & center freq. ?
[19:24] <iain_g4sgx> green decodes before the blue gets to me even, impressed
[19:25] <iain_g4sgx> my dial mis 434.4614
[19:25] <iain_g4sgx> and the mark is about 1000kcs on f;lidgi
[19:26] <Geoff-G8DHE> 434.4614 quite low then
[19:26] <Wouter-[pa3weg]> let me adjust my frequency
[19:26] <iain_g4sgx> sorry, 434.5002
[19:27] <Wouter-[pa3weg]> oh
[19:27] <Geoff-G8DHE> OK
[19:27] <iain_g4sgx> was looking at center freq
[19:28] <Wouter-[pa3weg]> nothing yet herman, but I think the conditions are not as great as last time
[19:28] <db_g6gzh_> 434.4993 MHz and 1700 Hz centre here
[19:30] <LeoBodnar_> Hmm, I have different prediction: http://ready.arl.noaa.gov/hypubout/11370_trj001.gif
[19:31] <Laurenceb_> wtf
[19:31] <Laurenceb_> something weird going on with the models
[19:31] <LeoBodnar_> It's a sliding knot!
[19:31] <Laurenceb_> at least theree will be guaranteed receivers
[19:31] <Upu> predictor is assuming up and then down
[19:31] <Upu> live predictor
[19:31] <Upu> Hysplit assumes constant altitude
[19:32] <Geoff-G8DHE> Descent rate was very very small on CUSF
[19:32] <Upu> I can't put super low decent on live predictor or it causes issues
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[19:37] <Laurenceb_> looks like it might get down to zero at float
[19:37] <Upu> Solar balloon is starting to decent
[19:37] <Upu> decend
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[19:38] <Laurenceb_> is the temperature internal?
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[19:38] <LeoBodnar_> Yes Laurenceb_
[19:38] <LeoBodnar_> B-6 is over Bletchley park
[19:39] <Laurenceb_> looks like it was turing a little to the north
[19:40] <Geoff-G8DHE> Better look out for the training poles might snag on one!
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[19:50] <Laurenceb_> heh straight line down watling street
[19:51] <Upu> http://aprs.fi/#!call=a%2FF6KBN-11&timerange=43200&tail=43200
[19:51] <Upu> dropping fast now
[19:52] <g4sgx-iain> What was that?
[19:53] <Upu> its a solar balloon launched in France
[19:54] <Maxell> SP9UOB-Tom: intresting, aprs.fi is now reporting a serious bad path... This station appears to be flying at high altitude and using digipeaters, which causes serious congestion in the APRS network. The tracker should be configured to only use digipeaters when at low altitude.
[19:55] <arko> LeoBodnar_: whats the goal of B-6? does it look different?
[19:56] <g4sgx-iain> It went quite a way, wonder how large it was..
[19:58] <Upu> larger battery arko
[19:58] <Upu> should be good for 2 days
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[20:00] <arko> nice!
[20:00] <arko> exciting :)
[20:02] <Lunar_Lander> :)
[20:02] <Lunar_Lander> hi arko
[20:02] <SP9UOB-Tom> Maxell: this is why im shortening the path with altitude
[20:02] <arko> yoo
[20:03] <g4sgx-iain> Storms were forecast for east UK but no activity on the online live lightning map..
[20:03] <mattbrejza> what happened to no aprs on a balloon in france :/
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[20:03] <SP9UOB-Tom> amyway really impressive flight, and soooo cheap ;-)
[20:03] <Maxell> SP9UOB-Tom: cool stuff
[20:04] <SP9UOB-Tom> *anyway
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[20:04] <SP9UOB-Tom> no helium, no latex and day full of fun :-)
[20:05] <Lunar_Lander> :)
[20:05] <LeoBodnar_> Are there pictures of French APRS balloon?
[20:05] <Upu> yeah Tom linked one earlier
[20:05] <Upu> Alain's site alerte radiosonde
[20:06] <x-f> http://alerte-radiosondes.blogspot.com/2013/07/ballon-radioamateur-f6kbn-11-le.html
[20:06] <SP9UOB-Tom> http://www.b26-forchheim.de/wp-content/uploads/2011/07/f6kbn-11_ballon_2011-07-14_12.jpg
[20:06] <Upu> the worlds best and most random balloon site
[20:06] <x-f> :)
[20:06] <Upu> you're on there Leo
[20:06] <Upu> http://alerte-radiosondes.blogspot.co.uk/2013/07/ballon-b-5-le-12-juillet-2013-sur-la.html
[20:07] <Upu> Google translate is ace
[20:07] <x-f> that payload looks huge, i wonder what's inside it
[20:07] <SP9UOB-Tom> this is them piervous flight documented: http://www.b26-forchheim.de/index.php/415/b26-sucht-einen-ballon
[20:07] <arko> it's not a payload
[20:07] <arko> it's a coffin
[20:07] <Wouter-[pa3weg]> green !
[20:07] <x-f> orange?
[20:07] <Wouter-[pa3weg]> as in: decoding from Delft
[20:07] <Upu> impressive range as ever Wouter
[20:08] <arko> maybe the murica size should now be french size
[20:08] <Laurenceb_> http://alerte-radiosondes.blogspot.co.uk/2013/07/herstmonceux-les-tendances-au-13.html
[20:08] <Laurenceb_> wtf
[20:08] <LeoBodnar_> Lol Upu
[20:09] <Upu> see what I mean about random Laurenceb
[20:09] <Upu> honestly its worth checking it daily
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[20:10] <jcoxon> Evening all
[20:10] <SP9UOB-Tom> evening jcoxon
[20:10] <LeoBodnar_> Evening jcoxon
[20:10] <Geoff-G8DHE> Which aerial is B-6 using tonight LeoBodnar_ ?
[20:10] <arko> are those hand drawn predictions?
[20:10] <jcoxon> how's the flight
[20:10] <SP9UOB-Tom> it was over 400km i think
[20:10] <Geoff-G8DHE> On Tx that is
[20:10] <Laurenceb_> B-6 passing solar balloon in altitude :P
[20:10] <LeoBodnar_> GPS is chip UHF is 1/4 wave GP
[20:11] <Upu> still ascending jcoxon
[20:11] <Upu> Some French people launched a solar balloon which did quite well today jcoxon but its about to splash down
[20:11] <Upu> http://aprs.fi/#!call=a%2FF6KBN-11&timerange=43200&tail=43200
[20:11] <LeoBodnar_> I never flew such a heavy payload :)
[20:12] <arko> le splash
[20:12] <LeoBodnar_> Is there a way of seeing an altitude profile for F6KBN flight?
[20:12] <SP9UOB-Tom> le splash LOL
[20:12] <arko> LeoBodnar_: export kml
[20:13] <Upu> yes there is Leo
[20:13] <Upu> SP9UOB-Tom do you have the link ?
[20:13] <jcoxon> Upu, cool
[20:13] <Laurenceb_> solar balloon coming down at ~2m/s
[20:13] <SP9UOB-Tom> LeoBodnar_: lok at the bottom of the page http://aprs.fi/info/graphs/a/F6KBN-11
[20:13] <Laurenceb_> lower than B-6 now
[20:14] <SP9UOB-Tom> look
[20:14] <LeoBodnar_> Oh, such a sharp descent
[20:15] <Geoff-G8DHE> Its only partial data just a short section of track out at sea http://360.g8dhe.net/hab_flights/B-6/index.php?ind=1
[20:16] <jcoxon> What's the spacenear us mobile page?
[20:16] <x-f> http://habhub.org/mt
[20:16] <SP9UOB-Tom> its out of aprs range by now
[20:16] <SP9UOB-Tom> nice flight really
[20:16] <Lunar_Lander> :)
[20:17] <Lunar_Lander> SP9UOB-Tom, my transmitter is still at 85 Hz strangely, but the voltage is correct at 3.3V as measured
[20:17] <SP9UOB-Tom> Lunar_Lander: RFM ?
[20:18] <Lunar_Lander> NTX2
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[20:20] <jcoxon> Leobodnar what's todays plan
[20:21] <Laurenceb_> mobile tracker doesnt show the temperature
[20:22] <LeoBodnar_> jcoxon: float over France
[20:22] <Laurenceb_> something misconfigured?
[20:22] <LeoBodnar_> I have never tried AA and 20g payload
[20:22] <jcoxon> It's worth emailing the list early
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[20:22] <jcoxon> To recruit more trackers
[20:22] <LeoBodnar_> Does this involve "planning?"
[20:23] <LeoBodnar_> XD
[20:23] <g4sgx-iain> What I want to know is why my call is pretty much always last on the list of trackers. Mean I got crap internet speed i spose, or cos you all hate me.
[20:23] <jcoxon> Just an email
[20:23] <jcoxon> Yeah its lag that's all
[20:24] <mfa298> g4sgx-iain: at least you're appearing (signal is struggling to get decodes)
[20:24] <Geoff-G8DHE> Only just starting to see it tonight, a load of QRM sitting on the freq. :-( but its starting to get thru it now.
[20:25] <LeoBodnar_> does order have any significance?
[20:25] <Upu> if you are going to France LeoBodnar_ drop F6agv@free.fr a mail he runs the Alert Radiosonde site
[20:25] <LeoBodnar_> OK, will do if it won't deflate at the top
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[20:25] <Upu> g4sgx-iain if a more recent position is uploaded before you get yours up you won't appear
[20:27] <Upu> but I see you on the list
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[20:27] <g4sgx-iain> Aha, lots of lag here, the lappy's down the garden, using VNC over wifi. (short coax)
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[20:28] Nick change: cuddykid_ -> cuddykid
[20:28] <SP9UOB-Tom> night all
[20:28] <LeoBodnar_> jcoxon: have you looked at B-5 pressure data yet?
[20:28] <Geoff-G8DHE> Night Tom
[20:28] <LeoBodnar_> good night Tom
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[20:29] <Geoff-G8DHE> My first decode
[20:29] <jcoxon> Not really, have been by the sea for the weekend
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[20:29] <G0TDJ_Steve> Solid greens here now LeoBodnar_
[20:29] <LeoBodnar_> cool Geoff-G8DHE G0TDJ_Steve
[20:30] <LeoBodnar_> jcoxon: looks like pressure increased to 4kPa during the day, this is reasonably lower than 7kPa bursting pressure
[20:31] <Laurenceb_> getting nice and cold up there
[20:31] <Laurenceb_> this is good
[20:31] <Laurenceb_> LeoBodnar_: imo high altitude is the key to making it work
[20:31] <LeoBodnar_> I want to be there
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[20:31] <Laurenceb_> nice and cold and less overpressure
[20:31] <Laurenceb_> cold == no dew
[20:32] <Laurenceb_> i thought burst pressure was much more than 7?
[20:32] <Laurenceb_> have you tested it?
[20:32] <Laurenceb_> iirc rocketboy found about 1.5psi
[20:33] <LeoBodnar_> Ground speed is 20MPH
[20:33] <Upu> where did B6 go ?
[20:34] DL7AD (4c1e466c@gateway/web/freenode/ip.76.30.70.108) joined #highaltitude.
[20:34] <LeoBodnar_> Still decoding Upu
[20:34] <DL7AD> good afternoon
[20:34] <Upu> wierd the signal just disappeared and is super weak
[20:34] <Upu> coming back now
[20:34] <Upu> evening DL7AD
[20:34] <craag> Upu: I'm getting slow fading, but it's strong down here now. SO if it's weak there right now, it's a directional antenna ;)
[20:34] <LeoBodnar_> Good evening DL7AD
[20:34] <Upu> its back now
[20:34] <Upu> totally went
[20:34] <DL7AD> saw your new balloon LeoBodnar_ :)
[20:35] <LeoBodnar_> Good! Will you be decoding from France? :)
[20:35] <Upu> DL is Germany :)
[20:35] <chrisstubbs> hmm no frequency on spacenear.us, does that mean im allowed to ask?
[20:35] <Upu> 434.500
[20:35] <craag> 434.500 dead
[20:35] <Upu> will fix
[20:35] <chrisstubbs> Wow bang on!
[20:35] <craag> gone for me here now
[20:36] <iain_g4sgx> -1db here, v strong
[20:36] <DL7AD> i will call F5VMH . by the way. im currently in Texas US. my second call is AF5LI
[20:36] <chrisstubbs> Strongest domino I have seen over here :)
[20:36] <DL7AD> is it going to fly over france again?
[20:36] <Upu> I fixed the Polish station using AVA as a call sign by changing the payload doc
[20:36] <chrisstubbs> DL7AD, looks like it
[20:37] <iain_g4sgx> Big high pressure, loiw wind, good for tropo propo
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[20:37] <iain_g4sgx> sunset the best time
[20:38] <LeoBodnar_> DL7AD: tracked remotely from France Upu
[20:38] <G0TDJ_Steve> 5Deg footprint just into Crayford. Great sigs
[20:38] <Upu> ah ok
[20:39] <DL7AD> on which frequency
[20:40] <Upu> 434.500
[20:40] <mfa298> with the current prediction that looks like a flypast of London and Paris
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[20:41] <mfa298> can it manage Madris as well ?
[20:41] <DL7AD> okay. station of F5VMH started and listening on 434.500, but currently not in range
[20:43] <LeoBodnar_> Thanks DL7AD !
[20:43] <DL7AD> yr welcome
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[20:50] <Wouter-[pa3weg]> tracking down some wideband FM on 70cm here
[20:50] <Wouter-[pa3weg]> FM stereo in amateur bands :S
[20:50] <LeoBodnar_> Not me, gov
[20:52] <KT5TK> LeoBodnar: Do you have some photos on the web this time?
[20:53] <LeoBodnar_> I have just one :) It's very similar to B-5 I'll put it up
[20:54] <KT5TK> Great. Those pages are always very interesting.
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[20:55] <DL7AD> LeoBodnar_ : did you mount solar again?
[20:55] <LeoBodnar_> No, not this time, I want to see how long AA will last
[20:56] <Upu> 48 hours
[20:56] <Upu> :)
[20:56] <x-f> you could have tested that on the ground :)
[20:58] <LeoBodnar_> Wot, 48 hours of no flying?
[20:58] <DL7AD> and what is main bus b this time when this time solar is not connected?
[20:58] <LeoBodnar_> This is the system bus, it is supposed to stay at 2.0V all the time. If it does not then there is a problem.
[20:59] <LeoBodnar_> Big problem.
[21:00] <Upu> Its Leo being a nerd : http://answers.yahoo.com/question/index?qid=20080422194852AA2kHzx :)
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[21:01] <craag> haha nice
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[21:06] <Geoff-G8DHE> Is there anyone capable of compiling dl-fldigi for Windows about these days ? I would love to get the GPS location input sorted on it :/
[21:06] <LeoBodnar_> B-6 seems to have settled for the night. Expected night float level was 5440m
[21:06] <Geoff-G8DHE> Its a solid signal with me know and the QRM has subsided at the moment!
[21:07] <Geoff-G8DHE> Oh a pause in the signal ?
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[21:07] <Geoff-G8DHE> and another
[21:08] <LeoBodnar_> Did somebody tried to stir the oxygen tanks?
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[21:10] <LeoBodnar_> No idea what it could have been
[21:10] <LeoBodnar_> I had loss of carrier here too
[21:10] <Geoff-G8DHE> Wondered if it was a prelude to night mode ?
[21:10] <Upu> no loss here
[21:11] <G0TDJ_Steve> Solid here
[21:11] <LeoBodnar_> Carrier cut off during message 1013
[21:11] <Geoff-G8DHE> The carrier cut just after 1012 then restarted on 1014
[21:12] <Upu> ah yes
[21:12] <Geoff-G8DHE> like wise at 1000 which is missing
[21:12] Action: Upu goes to check if 1013 means something
[21:13] <LeoBodnar_> Standard altimeter setting?
[21:13] <G0TDJ_Steve> Confirm, nothing between 12-14
[21:13] <LeoBodnar_> 1000 should be missing as it was replaced by a header line
[21:14] <Geoff-G8DHE> but there were two losses of carrier
[21:14] <LeoBodnar_> Yep
[21:14] <x-f> what happened on 1010th? no GPS data
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[21:15] <LeoBodnar_> loss of carrier x-f
[21:15] <Geoff-G8DHE> Ah yes that must be the other gap
[21:17] <LeoBodnar_> It's going for you G0TDJ_Steve
[21:17] <G0TDJ_Steve> :D
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[21:18] Nick change: fz_ -> fz
[21:19] <G0TDJ_Steve> These things do seem to like me :-) http://imgur.com/BgMKe8f
[21:19] Nick change: LeoBodnar_ -> LeoBodnar
[21:19] <LeoBodnar> You and daveake
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[21:21] <LeoBodnar> I have been thinking that if I were to put a strobe light on it it should only start flashing with an X mile radius of regular trackers. Saves energy and just plain cool!
[21:22] <G0TDJ_Steve> That's a good idea
[21:22] <G0TDJ_Steve> Challenging programming though?
[21:23] <LeoBodnar> Not really, just checking the distance from a set of 10-20 tracker bases coordinates
[21:23] <G0TDJ_Steve> Fair enough LeoBodnar: What does GPS Disciplined mean?
[21:23] <SpeedEvil> G0TDJ_Steve: locked to a GPS timebase.
[21:23] <G0TDJ_Steve> Right
[21:24] <SpeedEvil> G0TDJ_Steve: GPS is also a precision timebase, you can 'easily' get a 10MHz (say) oscillator that only drifts by picoseconds.
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[21:25] <G0TDJ_Steve> So is it not a Xtal at all, it's driven purely off the GPS?
[21:25] <nigelvh> G0TDJ_Steve: http://en.wikipedia.org/wiki/GPSDO
[21:25] <G0TDJ_Steve> Cheers nigelvh
[21:25] <nigelvh> I use one of these as a precision reference for my siggen and counter.
[21:26] <nigelvh> The model I have (Trimble Thunderbolt) is generally accurate to around 0.01ppb.
[21:26] <LeoBodnar> In my case PLL is corrected to produce stable output. I guess pure disciplining assumes XTAL itself is pulled into PLL lock with GPS reference
[21:27] <nigelvh> Yes, you're using the GPS output signals to keep a signal generator accurate.
[21:27] <G0TDJ_Steve> ppb nigelvh>
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[21:28] <nigelvh> Yes, parts per billion frequency accuracy.
[21:28] <G0TDJ_Steve> Thanks. I'll read the WPD entry later on
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[21:30] <nigelvh> G0TDJ_Steve, if I have 0.01ppb frequency accuracy at 10MHz, that means the signal can only be off by +/- 0.0001Hz
[21:30] <G0TDJ_Steve> Nice!
[21:31] <nigelvh> So, at the lowest, my 10MHz reference would be 9999999.9999 and the highest would be 10000000.0001
[21:31] <nigelvh> MHz
[21:31] <G0TDJ_Steve> So how come B6 is wandering left and right?
[21:31] <Laurenceb_> LeoBodnar: sorry i wasdnt following
[21:31] <Laurenceb_> you lock to gps?
[21:31] <LeoBodnar> It's trying to correct every 16 sec.
[21:31] <Laurenceb_> using a pll?
[21:31] <Lunar_Lander> parachute
[21:32] <Lunar_Lander> and balloon again
[21:32] <Lunar_Lander> :)
[21:32] <Laurenceb_> are you using VCTCXO?
[21:32] <LeoBodnar> Yes Laurenceb_
[21:32] <G0TDJ_Steve> So actually, trying to correct it is making it less stable....
[21:32] <LeoBodnar> Controlling TCXO by pulling is very difficult without a fine grain DAC
[21:32] <Laurenceb_> ah
[21:32] <LeoBodnar> no, just TCXO
[21:33] <Laurenceb_> oh
[21:33] <Laurenceb_> so how do you tune it?
[21:33] cyclops (581963f9@gateway/web/freenode/ip.88.25.99.249) joined #highaltitude.
[21:33] <LeoBodnar> I mean regular VCTCXOs have massive freq shift
[21:33] <cyclops> Hi!!
[21:33] <Laurenceb_> i see
[21:33] <Laurenceb_> so you pull a tcxo?
[21:33] <Laurenceb_> how
[21:33] <LeoBodnar> By changing PLL parameters to compensate for measured TCXO drift
[21:34] <LeoBodnar> TCXO drift is measured against 1PPS signal
[21:34] <Laurenceb_> ah
[21:34] <Laurenceb_> didnt realise the pll was that good
[21:34] <LeoBodnar> No, I change fractional divisor ratio to compensate for known inaccuracy of TCXO
[21:34] <Laurenceb_> i see
[21:35] <LeoBodnar> Otherwise we are into PID games, etc
[21:35] <Laurenceb_> pic is clocked off the tcxo?
[21:35] <LeoBodnar> yes
[21:35] <Laurenceb_> the 1pps -> pwm capture?
[21:36] <LeoBodnar> yes
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[21:37] <cyclops> Guys
[21:37] <cyclops> This funcube dongle http://www.hamradio.co.uk/sdr-software-defined-radio-amsat-uk/funcube/funcube-dongle-pro-new-pd-4094.php
[21:37] <cyclops> is the latest available?
[21:39] <Upu> yes
[21:39] <Upu> great bit of kit
[21:39] <Upu> HABAmp does help it and I'm not just saying that because I sell the
[21:39] <Upu> them
[21:39] <cyclops> AHH uou
[21:39] <cyclops> *Upu
[21:39] <cyclops> how is the HABduino going?
[21:39] <Upu> actually sorry
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[21:40] <Upu> I've not tried HABAmp on the new FCD
[21:40] <Upu> I use it on the older one
[21:40] <Upu> boards have been shipped
[21:40] <cyclops> BTW just a couple of hours before the HABamp creator
[21:40] <Upu> so waiting on them to be delivered
[21:40] <eroomde> i'm sure it wouild still help
[21:40] <eroomde> how could it not?
[21:40] <cyclops> told me thet you dont need it for the dongle
[21:40] <cyclops> That it works pretty well without it
[21:41] <cyclops> But he highly encourages its use on other USB receivers
[21:41] <craag> Yeah HABamp isn't really required on the pro+
[21:42] <Upu> it has built in SAW
[21:42] <Upu> but the amp may help
[21:42] <craag> however if you have a long run of coax from the antenna, having the habamp to boost the signal at the antenna will help.
[21:42] <Laurenceb_> the pro+ noise figure is a little high
[21:42] <Laurenceb_> habamp lna might help
[21:42] <cyclops> Im gonna order the pro+
[21:42] <cyclops> And im crossing fingers so UPU has the Habduino ready on time
[21:43] <Laurenceb_> looks good value
[21:44] <cyclops> BTW Upu the total component price including the arduino is about ~70Pounds?
[21:44] <Upu> really not sure yet I need to price it up
[21:44] <Upu> I don't supply the Arduino
[21:45] <cyclops> Im talking about bare components
[21:46] <G0TDJ_Steve> Did we just see a Night Mode blank LeoBodnar
[21:47] <LeoBodnar> No, it's another glitch I suppose
[21:47] <G0TDJ_Steve> OK
[21:47] <G0TDJ_Steve> Has B6 got the night mode?
[21:47] <g4sgx-iain> Gonna set my FCD pro+ up as a 474khz WSPR receiver tonight, see what it picks up by the morning if anything
[21:47] <LeoBodnar> Yes, it should kick in at midnight UK time
[21:48] <G0TDJ_Steve> OK Cool
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[21:48] <Upu> just not sure cyclops I'll have to come back to yuou
[21:49] <cyclops> Well ill order the Arduino Uno
[21:49] <jcoxon> Hows it going?
[21:50] <cyclops> Antennas and the Dongle
[21:51] <cyclops> I also ordered the cameras
[21:51] <LeoBodnar> Reasonably well with some glitches on the way
[21:51] <cyclops> Only Balloon and Tracker left
[21:51] <G0TDJ_Steve> LeoBodnar: I got a gap in TX but no gap in the frame numbers
[21:51] <G0TDJ_Steve> Oh! Did that time
[21:51] <LeoBodnar> I have 1290 missing
[21:51] <Laurenceb_> 5.5Km float prediction was spot on :P
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[21:52] <G0TDJ_Steve> Confirm leo
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[21:52] <Wouter-[pa3weg]> so, I found more FM broadcast on 70cm, but also on 288MHz
[21:52] <G0TDJ_Steve> Any idea what's causing that LeoBodnar ?
[21:53] <Wouter-[pa3weg]> some local FM transmitter is clearly dying...
[21:53] <LeoBodnar> I am trying to build some confidence and predictability Laurenceb_ :)
[21:53] <Wouter-[pa3weg]> generating all kinds of rubbish
[21:53] chris_99 (~chris_99@unaffiliated/chris-99/x-3062929) joined #highaltitude.
[21:54] <G0TDJ_Steve> I'm also getting fading on the sig LeoBodnar
[21:54] <eroomde> who are you and what have you done with Laurenceb_?
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[21:55] <Laurenceb_> huh?
[21:55] <LeoBodnar> G0TDJ_Steve: no idea, could this be caused by static electricity
[21:55] <LeoBodnar> ?
[21:55] <G0TDJ_Steve> Where would that come from LeoBodnar ?
[21:57] <LeoBodnar> Rubbing on the air? Planes have static draining thingies to get rid of static charges
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[21:57] <G0TDJ_Steve> Interesting.
[21:58] <LeoBodnar> http://en.wikipedia.org/wiki/Static_discharger
[21:59] <Laurenceb_> eroomde: amount of trolling is proportional to amount of arduino
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[22:00] <LeoBodnar> trollduino?
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[22:01] <Lunar_Lander> lol
[22:02] <LeoBodnar> Trolling shield!
[22:04] <Wouter-[pa3weg]> hahaha, I would totally buy that
[22:04] <Wouter-[pa3weg]> a trollface shield
[22:04] <Wouter-[pa3weg]> white PCB + black markings
[22:04] <Wouter-[pa3weg]> trollololollolooo
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[22:08] <Lunar_Lander> XD
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[22:09] <Wouter-[pa3weg]> restart
[22:09] <Wouter-[pa3weg]> ploink
[22:09] <LeoBodnar> yep
[22:10] <db_g6gzh_> off for 2 sentences then
[22:10] <SpeedEvil> I'm buying one of these to use for a fan. https://www.youtube.com/watch?v=EXEdq3UnnFE
[22:10] <Wouter-[pa3weg]> that´s powersave
[22:10] <Wouter-[pa3weg]> ?
[22:10] <LeoBodnar> now, powerglitch
[22:10] <db_g6gzh_> but its synchronised to the sentence
[22:10] <LeoBodnar> *no
[22:11] <LazyLeopard> What's weird is the way one line came through while there was pretty much nothing visible on the waterfall.
[22:11] <fsphil> SpeedEvil: that may have undesirable effects
[22:11] <SpeedEvil> Argh - wrong channel.
[22:12] <Geoff-G8DHE> Caught it here http://360.g8dhe.net/hab_flights/B-6/index.php?ind=5
[22:12] <Herman-PB0AHX> yessssssssss green lines from B6
[22:12] <LeoBodnar> Haha Herman-PB0AHX
[22:13] <G0TDJ_Steve> B6 just above our radio club's NFD site :D
[22:13] <LeoBodnar> Geoff-G8DHE: did it drop the signal or had massive freq offset?
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[22:14] <Geoff-G8DHE> It didn't appear to move freq. wise no trace on the w/f at all, it would have to be VERY fast to skip the 2Mss rate of the dongle ?
[22:14] <Wouter-[pa3weg]> I think it dropped
[22:15] <Wouter-[pa3weg]> back now
[22:15] <Wouter-[pa3weg]> and decoding
[22:15] <Geoff-G8DHE> I'm ready o the grab key and will try to get both loss and return, but I don't think it changed f at all just off/on linked to the record timing
[22:16] <LazyLeopard> Yes, there was one fade I watched where I was still receiving lines but the waterfall was pretty much blank.
[22:16] <LazyLeopard> So the frequency's not shifting but the output level is dropping by a lot.
[22:16] <LeoBodnar> I know what is happeneing
[22:17] <G0TDJ_Steve> What is happening LeoBodnar ?
[22:18] <Laurenceb_> ooh look
[22:18] <Laurenceb_> http://4.bp.blogspot.com/-mOeBw-YHuLU/T7jbmsRqVyI/AAAAAAAAAw8/U3mAUFxzLvM/s1600/narwhal-cosplay.jpg
[22:18] <Laurenceb_> an arduino user
[22:18] <LeoBodnar> When it thinks that it has lost a satellite lock or GPS reception is degraded it places GPS into maximum performance mode and cuts down on the TX power a lot to give priority to GPS to recover the signal.
[22:18] <LazyLeopard> Heh, and now it's pretty close to where CHEAPO finally landed.
[22:19] <G0TDJ_Steve> That's right, not far at all
[22:19] <Geoff-G8DHE> Paying its respects to a deflated Pico I guess ;-)
[22:19] <LeoBodnar> If you were very close or have highly directional high gain antenna you could have picked up this "lost" sentence. It is simply very low power. 0.1mW or so
[22:20] <LeoBodnar> Haha Laurenceb_
[22:20] <G0TDJ_Steve> Do you knw what number sentance it was LeoBodnar ?
[22:20] <LazyLeopard> Well, it's only 10kms from me at present, which would help the faint signal reception quite a bit.
[22:21] <LeoBodnar> No. But it would have had system status (last field) changed from "S" to "P"
[22:21] <G0TDJ_Steve> On it's way over Albany Park railway station.
[22:21] <LeoBodnar> B-6 salutes CHEAPO
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[22:22] <G0TDJ_Steve> I didn't get that sentence Leo
[22:22] <G0TDJ_Steve> Wah?
[22:23] <G0TDJ_Steve> That was interesting
[22:23] <LazyLeopard> A Morse Interlude. ;)
[22:23] <G0TDJ_Steve> Cilsign, Seq, UTC, Lat, Lon, Alt, Sats, Vbatt, VbusB, InternalTemp, SysStatus
[22:23] <Geoff-G8DHE> That was the morse/wahwah and restart caught here http://360.g8dhe.net/hab_flights/B-6/index.php?ind=6
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[22:24] <G0TDJ_Steve> Well caught Geoff-G8DHE
[22:24] <LeoBodnar> Ah, cool pics Geoff-G8DHE, what is your setup?
[22:24] <Geoff-G8DHE> Windowsx64 4 core 8mB ram SDR-Radio fed by Dongle with HABAMP
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[22:25] <Geoff-G8DHE> Not that special its getting quite an old machine now, my laptop has more cores!
[22:25] <LeoBodnar> Just a regular TV dongle?
[22:25] <Geoff-G8DHE> 8GB of ram of course
[22:26] <Geoff-G8DHE> Yup RTL2832U/E4000 and its pretty stable they other VFO window is watching a reference signal so I can be sure any drift is not the Dongle
[22:27] <LeoBodnar> 8mB is like 1 Byte shared among 128 users
[22:27] <mfa298> supposedly 640kb is enough for anybody
[22:27] <LeoBodnar> Cool looking software
[22:27] <Geoff-G8DHE> Indeed my first ever machine 6800 had 64K of hand assembled static RAM, it too tracked satellites!
[22:28] <mfa298> I have found the annoyance with 8gb of ram in my laptop. It takes ages to startup after it's hibernated!
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[22:28] <Geoff-G8DHE> SDR-Radio is well worth downloading, its nearly out of Beta now end of the month, its got a LOT of features
[22:28] <LeoBodnar> 640kb were often 512kb with 128 soldered on top (less selection lines)
[22:29] <Geoff-G8DHE> and its free!
[22:29] <LeoBodnar> It definitely looks cool
[22:30] <Geoff-G8DHE> Confusing the first time it comes up, eventually when we stop travelling for the year, I'll put the Dongle on the server and run it to all the other machines in the house with just the console on them
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[22:30] <LeoBodnar> This Domin picks bits of text from nothing. Aliens should use it too.
[22:30] <mfa298> sdr-radio is a great bit of software with the fcd pro+ or an rtlsdr
[22:30] <LazyLeopard> Closest to me was 8.967 kms... Think that's the closest I've ever tracked a HAB. ;)
[22:30] <LeoBodnar> Are you pushing 2MHz to all local PCs then?
[22:31] <LeoBodnar> *Domino
[22:31] <Geoff-G8DHE> One of the ice features of it is you can adjust the individual sides of the bandwidth without affecting the tuned freq. so once you have a stable signal, I just pull the bandwidth skirts in and cut out all the other noise!
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[22:32] <Geoff-G8DHE> Its why I like nice stable signals!
[22:32] <GMT> another 'stealth' launch I see ...
[22:34] <LeoBodnar> GMT, how do I contact you, can you PM me your email?
[22:36] <G0TDJ_Steve> And so... another payload floats by Crayford....
[22:40] <LeoBodnar> G0TDJ_Steve: can you hear it fading away?
[22:40] <G0TDJ_Steve> LOL... Yeah, just a feint sigh
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[22:45] <GMT> Leo, what's special about this one ... how much does it weigh?
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[22:45] <G0TDJ_Steve> Telemetry says 20gms I believe
[22:46] <GMT> okay, a heavyweight by LeoB standards!
[22:47] <LeoBodnar> This one is heavier than usual and payload weight is 21g. It has AA battery inside and I hope it will survive the whole day. I have never had balloon going from night into day and back into the night. I am very curious to see if it can maintain integrity and not sink after the full day's exposure
[22:47] <G0TDJ_Steve> I saw a standard party balloon go up today. I wonder what behavior one would give with a small payload.
[22:48] <GMT> you might need more than one standard party balloon
[22:48] <LeoBodnar> If its overinflated (as in normally inflated) it will burst on the way up.
[22:48] <GMT> and the UV would affect the latex
[22:49] <G0TDJ_Steve> Interesting. I might try one for fun sometime.
[22:49] <LeoBodnar> Yes, higher altitude has more UV and ozone and colder temperature so not necessarily better.
[22:49] <G0TDJ_Steve> I have some foils waiting for other supplies
[22:50] <Wouter-[pa3weg]> any idea how far it will float overnight?
[22:51] <Wouter-[pa3weg]> I could try to point my antenna´s a bit more south
[22:53] <GMT> Wouter-[pa3weg] based on it's current speed, in 8 hours time it should be over Paris
[22:53] <LeoBodnar> Wouter-[pa3weg]: I am running the prediction
[22:53] <Geoff-G8DHE> Anybody have NOAA prediction URL to hand ?
[22:53] <Geoff-G8DHE> for B-6
[22:53] <LeoBodnar> Here is 24h prediction, each tick is 6 hours http://ready.arl.noaa.gov/hypubout/13597_trj001.gif
[22:54] <Rebounder> Geoff-G8DHE: like that sdr-radio support the rtl_tcp so one can use an rPi+sdrdongle on the rooftop or wherever
[22:54] <Geoff-G8DHE> Didn't one show it looping around the place ?
[22:55] <Geoff-G8DHE> Yes and it works OK tried it out over the LAN fine, not sure about the WAN!
[22:56] <LeoBodnar> This is 48h prediction but it assumes 5440m altitude. http://ready.arl.noaa.gov/hypubout/13611_trj001.gif Balloon is going to rise another 1000m or so during the day if it does not burst
[22:56] <Rebounder> Geoff-G8DHE: depends on your WAN... ;)
[22:56] <Wouter-[pa3weg]> ok, thanks
[22:57] <Geoff-G8DHE> Well now I'm on FTTC I suspect I can do it but not to GSM mobile ....
[22:57] <Wouter-[pa3weg]> Rpi + SDR + LAN/WAN = sample rate problems, so stick to lower than 1MSps
[22:57] <Rebounder> Geoff-G8DHE: lower samplingrate is a way to get through
[22:57] <Wouter-[pa3weg]> since USB is shared with the LAN chip
[22:57] <Wouter-[pa3weg]> below 600ks is becomes OK on LAN and WLAN for me
[22:58] <Geoff-G8DHE> That will do Leo, my Son is flying out to Romania tonight so I just suggested he could have a lift on a Balloon if he liked ;-)
[22:58] <Geoff-G8DHE> Yep it will need a bit of fine tuning of bandwidths , but the Dongles run nicely on the Laptop anyway.
[22:59] <Wouter-[pa3weg]> I run this setup in a small pelicase with a battery, WLAN, RPi and FUNcube + Realtek dongles
[22:59] <Wouter-[pa3weg]> smack the case on a roof, and you have instant SDR capabilities
[22:59] <G0TDJ_Steve> 23:59 - Get set for 'Night MOde'
[22:59] <Geoff-G8DHE> Infact we are heading out tomorrow late morning so I may sit in the back of the van whilst the XYL drives and track the balloon on the mobile setup!
[23:00] <Rebounder> Wouter-[pa3weg]: tried dl-fldigi on the rPi
[23:00] <Rebounder> Wouter-[pa3weg]: ?
[23:00] <Geoff-G8DHE> 00:00
[23:01] <Steffanx> *01:00
[23:01] <G0TDJ_Steve> There we go
[23:01] <Wouter-[pa3weg]> yes, but that was a disaster
[23:01] <Wouter-[pa3weg]> although I did not try X-forwarding of the display part
[23:02] <Wouter-[pa3weg]> to little processing power for the waterfall, but the rest runs OK
[23:02] <Geoff-G8DHE> http://360.g8dhe.net/hab_flights/B-6/index.php?ind=8
[23:02] <G0TDJ_Steve> Nice display Geoff-G8DHE
[23:03] <Wouter-[pa3weg]> 01:02 in this timezone ;)
[23:03] <Wouter-[pa3weg]> off to bed
[23:03] <G0TDJ_Steve> Good Night Wouter-[pa3weg]
[23:03] <Wouter-[pa3weg]> cheers all
[23:03] <LeoBodnar> GN!
[23:04] Nick change: Wouter-[pa3weg] -> Wouter-[pa3weg]_
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[23:04] <Herman-PB0AHX> i go also sleep bye bye all
[23:05] <Geoff-G8DHE> G'night
[23:05] <G0TDJ_Steve> Seeya Herman-PB0AHX
[23:05] <LeoBodnar> Good night Herman-PB0AHX
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[23:06] <DL7AD> blub
[23:06] <Geoff-G8DHE> http://360.g8dhe.net/hab_flights/B-6/index.php?ind=9
[23:06] <DL7AD> how much does it transmit?
[23:06] <DL7AD> only that few?
[23:06] <LeoBodnar> Cool pictures, can I say it a few more times!
[23:07] <LeoBodnar> ?
[23:08] <G0TDJ_Steve> LeoBodnar: Does the night mode time vary with the battery voltage? The lower the batt, the longer the night mode time?
[23:08] <LeoBodnar> DL7AD: during the night it transmits 15 sentences (about 1.5-2 minutes) and goes to sleep for 4-5 minutes (just regular beeps)
[23:08] <G0TDJ_Steve> Thanks, answered me too
[23:08] <LeoBodnar> No, it is timed.
[23:08] <G0TDJ_Steve> OK
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[23:09] <LeoBodnar> NIght mode is only 25% of the 24h period so not that much saving anyway. But something better than nothing.
[23:09] <G0TDJ_Steve> Any power saved is good
[23:09] <LeoBodnar> OK, guys, I am off to bed, I need to sleep a little bit
[23:10] <LeoBodnar> Good night all!
[23:10] <G0TDJ_Steve> Right, I'm going to get off here and find a friendly pillow :-)
[23:10] <G0TDJ_Steve> Well done again LeoBodnar
[23:10] <LeoBodnar> Cheers!
[23:10] LeoBodnar (5c116e74@gateway/web/freenode/ip.92.17.110.116) left irc:
[23:10] <G0TDJ_Steve> Speak to you guys soon - Have good nights all of you.
[23:10] <G0TDJ_Steve> 73!
[23:10] <Geoff-G8DHE> Right I'm leaving this running, see you all in the morning with luck!
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[23:17] <LazyLeopard> Ah well, guess I'll find out in the morning how much of the flight I've tracked. G'night.
[23:17] <GMT> I like the sound of B-6 as it restarts the domino transmission
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[23:23] <GMT> I'm also off to bed; I will leave this running and check in the morning
[23:23] Nick change: GMT -> GMT_away
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[23:36] <mfa298> Rebounder: reading scrollback, a few people have tried dl-fldigi on the pi and found there isn't enough cpu.
[23:36] <Maxell> any tips on finding the signal if it's down into the noise floor?
[23:37] <mfa298> some forum posts have suggested the standard fldigi does work. but the dl- version has a number of additions making it more cpu intensive
[23:38] <mfa298> There is a java decoder for rtty that looks promising - although I've struggled getting audio into it so far
[23:39] <mfa298> Maxell: with great difficulty I think. You might be able to see the pips it sends out in night mode in between the bursts of dominoex
[23:50] <Maxell> How does that work?
[23:51] <Maxell> Is it the middle freqency?
[23:51] <Maxell> And at what kind of interfal does it send that?
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[23:54] <DL7AD> no signal yet in france.
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[00:00] --- Mon Jul 15 2013