highaltitude.log.20150316

[00:00] <Vaizki> one misinterpreted sample in the start bit (or the half bit worth of hold mark before it) and your character is probably lost
[00:00] <Ian_> 8kHz was always about the lowest rate that audio was sampled at if I remember rightly. I know that I have in the past reduced the sampling to 8kHz for say Morse that was digitally recorded. I don't know offhand what the next rate up was or is. I'll have to ask Mr Google, but it probably had an influence, as did all other prior art at the time.
[00:01] <Vaizki> yea and now my soundcard runs at 192kHz
[00:01] <Vaizki> and 24bits per sample :)
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[00:01] <Ian_> When you think of the electromechanical model, because that was what was there previously, the start bit tripped the receive cam which began rotating and the timing was taken from that.
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[00:02] <Ian_> Only one sample per bit then :)
[00:02] <Vaizki> yes
[00:02] <Ian_> It's only without that insight that the software model looks crude now.
[00:04] <Ian_> That in itself is quite shocking. The newbie HABber today jumps to technology that is streets ahead of what the man in the street considered state of the art 20 years ago
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[00:06] <Ian_> Is there a best bit of fldigi to look at to get an IN to begin the process of understanding, or do you have to digest most of it before any understanding starts to surface?
[00:06] <Ian_> Perhaps what I mean is, how modular is it?
[00:08] <Vaizki> oh the code is modular in the sense that RTTY decoding is it's own directory with a couple of files
[00:08] <Vaizki> and all other modes are also similarly separated
[00:09] <Ian_> Jonsowman gave a good talk about RTTY decoding with a small ARM chip at the UKHAS conference last year, using Python and Cython. It all made very good sense and I felt that I could add the bits that he hadn't covered, but like all these things, understanding what is said and implimenting it myself is two different things.
[00:10] <Ian_> So I guess that starting on RTTY is probably a good way to get the IN and follow it through. I guess there is a lot of the infrastructure which is mode agnostic.
[00:12] <Ian_> I would almost be happy with a command line implementation for the decoding :) minimising my learning curve somewhat. Maybe another project to add to the neverending list.
[00:12] <Vaizki> also there used to be 6 different rtty demodulation methods in the code but 5 are now commented out
[00:12] <Vaizki> so apparently all but #3 were useless :)
[00:13] <Vaizki> I would also imaging that if you really wanted to dig out RTTY from even the faintest signals, you'd work with raw I/Q data from the SDR instead of just audio
[00:13] <Ian_> Ha, so more than one person has learned about DSP through fldigi code. I used to have a lot of code with stuff commented out. If deleted it and the lessons learned are potentially lost to posterity.
[00:14] <Vaizki> actually this code recreates a I/Q representation for analysis
[00:14] <Ian_> I would have to back up and understand IQ processing first.
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[00:14] <Ian_> Are you saying that it synthesises the IQ and works on that?
[00:15] <Ian_> from the received audio?
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[00:15] <Vaizki> no it can't really do that.. actually it's only doing it for visualization (the mini scope), not analysis
[00:16] <Ian_> I see.
[00:16] <Ian_> I can see that this stuff is addictive
[00:16] <SpacenearUS> New vehicle on the map: 03KRYTEN - 12http://tracker.habhub.org/#!qm=All&q=KRYTEN
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[00:17] <Vaizki> anyway, I need to sleep. now.
[00:18] <Vaizki> but it looks like fldigi could use some love especially for higher baud rates..
[00:18] <Ian_> I think that it might be worth my while taking a look at some of the source code just to compare those RTTY modes and understand the thinking that went on.
[00:18] <Ian_> Have a good sleep, Good night, Speak again soon
[00:19] <SpacenearUS> New vehicle on the map: 03RIMMER - 12http://tracker.habhub.org/#!qm=All&q=RIMMER
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[00:23] <Hix> OT i know, but does anyone know of a decent multirotor / drone channel? Bit too low for #highaltitude :)
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[03:05] <superkuh> ##radiocontrol
[03:05] <superkuh> Hix, ^
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[04:42] <mattbrejza> !flights
[04:42] <SpacenearUS> 03mattbrejza: Current flights: 03SUSF L5 P-Ruskin 10(a0cd), 03Nova 28 10(5a11), 030x06 - Pico Flight 10(3ed8)
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[04:50] <SpacenearUS> New vehicle on the map: 03PhilSUSF_chase - 12http://tracker.habhub.org/#!qm=All&q=PhilSUSF_chase
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[07:55] <mfa298> Vaizki: if you're wanting to play with rtty decoding you may be better off starting from scratch rather than trying to work with fldigi. I think half the code in there is generated from experimentation.
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[07:55] <mfa298> (based on some of the comit messages)
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[08:51] <Vaizki> mfa298, I agree.. I am merely dabbling to understand how fldigi works so that I can troubleshoot any problems
[08:51] <infaddict> morning
[08:52] <henryplumb_> morning all
[08:52] <Reb-SM0ULC> mfa298: maybe worth the time ro rewrite the rtty-code in fl-digi?
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[08:53] <Vaizki> not sure. it works better than expected because people find their payloads
[08:53] <Vaizki> at 50 baud I don't see a reason to invest serious time into it
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[09:12] <Vaizki> also I'm sure I'm misunderstanding parts of DSP stuff in it.. seems like the demod with separate filters for mark and space detection works quite reliably even in noisy conditions.. my main worry would be baud rates above 100 baud but I guess it was never designed for that
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[09:26] <tweetBot> @thecraag: Setting up #ukhas http://t.co/8bIHkWdTqG
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[09:39] <SpacenearUS> New position from 03FSUS after 0317 hours silence - 12http://tracker.habhub.org/#!qm=All&q=FSUS
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[09:48] <PhilSUSF> Morning all
[09:49] <henryplumb_> Morning
[09:49] <infaddict> hey PhilSUSF
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[09:49] <Vaizki> morning and happy launching
[09:50] <PhilSUSF> !ping SUSF
[09:50] <SpacenearUS> 03PhilSUSF: Last contact with 03SUSF was 0316 hours ago
[09:52] <SpacenearUS> New position from 03SUSF after 0316 hours silence - 12http://tracker.habhub.org/#!qm=All&q=SUSF
[09:52] <PhilSUSF> :)
[09:52] <PhilSUSF> cheers Vaizki
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[09:57] <Vaizki> I see Matt is again in the middle of the English channel :)
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[10:04] <Geoff-G8DHE> !dial susf
[10:04] <SpacenearUS> 03Geoff-G8DHE: Latest dials for 03SUSF LoRa RTTY 10(a0cd): none
[10:04] <Geoff-G8DHE> Yup he's a good old swimmer
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[10:18] <tweetBot> @SUSpaceflight: Almost ready to go #ukhas http://t.co/AgWC1A21lW
[10:20] <Geoff-G8DHE> Listening on several radios!
[10:20] <edmoore> and cusf up again today too
[10:20] <edmoore> such rare pearls
[10:20] <Geoff-G8DHE> its all quiet for ages then goes mad!
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[10:30] <LazyLeopard> What kind of kit decodes LoRa?
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[10:31] <Vaizki> LoRa kit
[10:31] <Geoff-G8DHE> RFM98W chip
[10:31] <Geoff-G8DHE> http://ava.upuaut.net/store/index.php?route=product/product&path=71_63&product_id=110
[10:31] <LazyLeopard> See plenty of mentions of it being in payloads these days, but as it seems to be proprietary it presumably isn't in dl_fldigi.
[10:31] <Vaizki> someone had made a sw decoder but it's not in dl-fldigi
[10:32] <Geoff-G8DHE> Nope its only via the chpset
[10:32] <Geoff-G8DHE> Upu is going to be doing a board soon I suspect
[10:33] <LazyLeopard> Geoff-G8DHE: That looks like a transmit module, not the receive one.
[10:33] <Vaizki> they are all rx+tx
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[10:33] <Geoff-G8DHE> Its both
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[10:33] <LazyLeopard> Ah. Ok.
[10:34] <Vaizki> so in theory you have a 2-way link "for free"
[10:34] <Geoff-G8DHE> daveakeman has a board for the Pi which is what I'm using at present
[10:34] <LazyLeopard> "In theory" ;)
[10:35] <UpuWork> Yeah board is in china
[10:35] <UpuWork> should be back early next week
[10:35] <Vaizki> well "in theory" because you might be sending back to the payload but is it catching your signal is another matter altogether :)
[10:35] <Vaizki> UpuWork, what's on the board?
[10:35] <Geoff-G8DHE> Trying to find dave's gateway article but failing at present!
[10:35] <LazyLeopard> Hence the quotes. ;)
[10:36] <UpuWork> just a board for the Pi
[10:36] <UpuWork> http://i.imgur.com/UiDp36E.png
[10:37] <LazyLeopard> ...and would presumably need something like a HABamp and a decent antenna on the front end to be of any use for tracking...
[10:38] <UpuWork> well you say that
[10:38] <UpuWork> but does seem very good for it
[10:38] <SpacenearUS> New vehicle on the map: 03FSUS - 12http://tracker.habhub.org/#!qm=All&q=FSUS
[10:38] <UpuWork> long ranges even on crappy antennas
[10:38] <UpuWork> oh they are in Grantham
[10:39] <tweetBot> @SUSpaceflight: Up #ukhas
[10:39] <Vaizki> UpuWork, 2x LoRa radios?
[10:39] <PhilSUSF> to the chase car!!
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[10:39] <UpuWork> yes Vaizki
[10:40] <henryplumb_> Good luck guys :)
[10:40] <Vaizki> different frequencis, diversity or what? :)
[10:40] <UpuWork> whatever you want Vaizki
[10:40] <LazyLeopard> Round this neck of the woods there's so much RF that things like RTL and FunCube dongles really struggle without additional filtering.
[10:40] <Andrew_M0NRD> up 434.448 at 1kHz
[10:41] <SpacenearUS> New vehicle on the map: 03SUSF - 12http://tracker.habhub.org/#!qm=All&q=SUSF
[10:41] <Andrew_M0NRD> if only my LoRa modules had arrived on Friday :-(
[10:42] <UpuWork> OH WOW
[10:42] <UpuWork> oops
[10:42] <UpuWork> RX both
[10:42] <UpuWork> got SUSF on Lora
[10:42] <UpuWork> no wherenear horizon
[10:43] <Geoff-G8DHE> Can see it on the Lincoln WEBSDR
[10:43] <UpuWork> spot the lora
[10:43] <UpuWork> http://i.imgur.com/JHy5aVk.png
[10:44] <Vaizki> oo that's cool
[10:44] <Vaizki> and another sdr console user.. love it
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[10:46] <UpuWork> Dave you need to auto detect lora mode changes :)
[10:46] <UpuWork> http://i.imgur.com/OlR408V.png
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[10:47] <Vaizki> so you got it on LoRa while it was still several degrees below the LoS horizon? :O
[10:47] <LazyLeopard> Right. So which bit is LoRa (or is it essentially invisible)?
[10:47] <Vaizki> it's the one that changes modes in upu's waterfall pic he just posted
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[10:48] <UpuWork> I'm only rxing lora slow mode
[10:48] <LazyLeopard> The squiggly stuff or the randomly dotty stuff?
[10:49] <Vaizki> the one on 434.300 :)
[10:52] chris_99 (~chris_99@unaffiliated/chris-99/x-3062929) joined #highaltitude.
[10:52] <LazyLeopard> There's a trace at 434.5 and another at 435.3 (-ish). 434.3 is essentially blank as far as I can see.
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[10:52] <LazyLeopard> ...the tics being 0.2 apart.
[10:53] <UpuWork> am I uploading SUSF data?
[10:53] <UpuWork> only says G6GZH
[10:53] <Geoff-G8DHE> I'm sending in but only occasionally appearing as well on SUSF ??
[10:53] <LazyLeopard> It's doing the now-you-see-it-now-you-don't trick.
[10:54] <Vaizki> LazyLeopard, wut.. 435.3 isn't even visible
[10:54] <Vaizki> oh right. look at the scale higher up.
[10:54] G0WXI (c180485d@gateway/web/freenode/ip.193.128.72.93) joined #highaltitude.
[10:54] <G0WXI> !dial SUFS
[10:54] <SpacenearUS> 03G0WXI: Can't find a flight doc matching your query
[10:54] <UpuWork> ah yes
[10:54] <Vaizki> the lower scale just shows (in red) which area is shown in the window. it's annoying yes how it looks like it's a scale for the waterfall
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[10:54] <Geoff-G8DHE> Ah GZH also has LoRa so updates more frequently
[10:54] <edmoore> friday weather looks shit
[10:54] <G0WXI> !flights
[10:54] <SpacenearUS> 03G0WXI: Current flights: 03SUSF L5 P-Ruskin 10(a0cd), 03Nova 28 10(5a11), 030x06 - Pico Flight 10(3ed8)
[10:55] <UpuWork> ah yes I'm on slow mode
[10:55] <LazyLeopard> Ah. Ok.
[10:55] <G0WXI> !dial SUSF
[10:55] <SpacenearUS> 03G0WXI: Latest dials for 03SUSF LoRa RTTY 10(a0cd): 03434.2978 MHz
[10:55] <PE2G> Can you tell from the tracker map who is using LoRa?
[10:55] <LazyLeopard> Confusing display.
[10:56] Nick change: dbrooke -> db_g6gzh
[10:56] <LazyLeopard> So the LoRa is essentially almost invisible.
[10:56] <Vaizki> yes, they should move the tick marks on the lower bar to the bottom
[10:56] <db_g6gzh> doing 20K8 SF 8 as I only have one LoRa decoder
[10:56] <LazyLeopard> ...somewhere between the two solid traces
[10:56] <Vaizki> no it's not invisible, it's a big trace there :P
[10:56] <Vaizki> the one that is split into 4 parts
[10:57] <Vaizki> can't be this hard
[10:57] <SpacenearUS> New vehicle on the map: 03PhilSUSF_chase - 12http://tracker.habhub.org/#!qm=All&q=PhilSUSF_chase
[10:58] <SpacenearUS> New vehicle on the map: 03JOEY - 12http://tracker.habhub.org/#!qm=All&q=JOEY
[11:00] <LazyLeopard> At 434.2 there's a double dotted trace. At 434.3 there's a squiggly one. There's another solid one at 434.36, and another solid one at 434.5. Then there's stuff between 434.48 and 434.56.
[11:01] <Vaizki> https://dl.dropboxusercontent.com/u/367935/upu-lora-explained.png
[11:01] <Vaizki> try that :)
[11:02] <LazyLeopard> There's something barely perceptible (if I stretch the contrast) between 434.38 and 434.43
[11:02] <Vaizki> I hope I got it right and sorry for the typo
[11:02] <amell> yikes am i missing a loonfest
[11:02] <UpuWork> looks about right :)
[11:03] <LazyLeopard> Thanks. Not quite the same screensot I was looking at. Makes more sense.
[11:03] <Vaizki> what is the slow mode there that you are getting so well?
[11:04] <amell> I can see some obvious, strong Lora Activity at 434.300
[11:04] <amell> its so obvious&
[11:04] <Vaizki> 20.8 kHz with spreading 12?
[11:04] <Geoff-G8DHE> SF11
[11:04] <LazyLeopard> Yes, now it's identified I'll recognise it.
[11:04] <Vaizki> ah ok
[11:05] <Vaizki> pretty close guess!
[11:05] <Geoff-G8DHE> :)
[11:05] <amell> seems to be from 434.290 to 434,309
[11:05] <amell> so yes, 20kHz
[11:05] <amell> shocking waste of bandwidth
[11:05] <amell> now i see rtty
[11:06] <amell> I have a handheld Lora receiver, but cant for the life of me remember what frequency its listening for.
[11:07] <Vaizki> so the slow mode lora is about 100bps?
[11:07] mattbrejza- (bc1d183a@gateway/web/freenode/ip.188.29.24.58) joined #highaltitude.
[11:07] <Vaizki> based on data sheet and my bad math
[11:07] Nick change: Hix2 -> Hix
[11:08] <Vaizki> slow mode lora should be totally doable in dl-fldigi though
[11:08] <amell> what, i just saw a 40khz lora.
[11:08] <Geoff-G8DHE> Its switching between modes
[11:08] <SpacenearUS> New vehicle on the map: 03Matt_chase - 12http://tracker.habhub.org/#!qm=All&q=Matt_chase
[11:08] <Vaizki> yea they go through modes to test
[11:09] <Vaizki> there seem to be 2x 20kHz modes and 2x 41.7kHz modes
[11:09] <Geoff-G8DHE> SF 8 and 11
[11:09] <Vaizki> SF11 and maybe 9
[11:09] <Vaizki> damn
[11:09] Action: amell is suddenly deafened as he finally works out why he cant hear anything.
[11:09] <Vaizki> off by one again
[11:10] <Geoff-G8DHE> then SF7 @125KHz
[11:10] <Vaizki> :D
[11:10] <Vaizki> don't tell amell, he will have a stroke
[11:11] <amell> what is at .300? sorry, i have no idea what im listening to
[11:11] <amell> oh its SUSF
[11:12] <amell> !dial JOEY
[11:12] <SpacenearUS> 03amell: Latest dials for 03JOEY 10(5a11): none
[11:12] <amell> !payload joey
[11:12] <SpacenearUS> 03amell: Payload 03JOEY 10(5a11) 03$$JOEY - 03434.63 MHz USB 03RTTY 50/350Hz ASCII-8 none 2
[11:12] <Geoff-G8DHE> Might get over the Downs for me shortly!
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[11:13] <amell> very good signal strength for this SUSF
[11:14] <Vaizki> so is 125kHz bandwidth on 433MHz ISM actually legal...
[11:14] <amell> !dial FUSF
[11:14] <SpacenearUS> 03amell: Can't find a flight doc matching your query
[11:14] <amell> !dial FSUS
[11:14] <SpacenearUS> 03amell: Latest dials for 03SUSF LoRa RTTY 10(a0cd): 03434.076 MHz, 434.44941 MHz, 434.4526 MHz, 434.45 MHz
[11:14] <mattbrejza-> 125 lora is working well
[11:14] <amell> helpful answer...
[11:15] <amell> Distance 1.245e+04km
[11:15] <amell> seems unlikely.
[11:16] <amell> Elevation -77
[11:16] <pc1pcl> groundpenetrating radar ;)
[11:16] <amell> Looks like the latitude and longitude on SUSF are encoded incorrectly for dl-fldigi
[11:16] <daveake> Vaiziki Yes but if no more than 10% duty cycle
[11:17] <Vaizki> right, so then the LoRa can also be up to 25mW in power?
[11:17] <mattbrejza-> uplink is 10mw btw
[11:17] <Vaizki> if you stay under 10% duty cycle
[11:20] <daveake> No just 10mW
[11:20] <amell> I did test lora once at 100% duty cycle with 125Khz bandwidth, it obliterates the spectrum!
[11:20] <amell> before you get all excited, my test was a matter of seconds only.
[11:21] <daveake> 433.05-
[11:21] <daveake> 434.79
[11:21] <daveake> MHz / 10mW / 10% DC / no b/w limit
[11:21] <daveake> Well on 868 that can be legal - 300kHz 100% but only 5mW
[11:22] <daveake> SSDV is impressively fast using lora in that mode
[11:22] <amell> does lora have a carrier tone??? I ask as i am seeing some thin lines
[11:22] <Vaizki> daveake, hmm here in Finland our regulator says we can go up to 25mW ERP .. mmm.. but EU 2006/771/EY says 10mW
[11:22] <daveake> no carrier
[11:22] <daveake> so that will be something else
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[11:24] <fl_0> how does one enter details of a flight into the flight database?
[11:24] <SpacenearUS> New vehicle on the map: 03George_SUSF_chase - 12http://tracker.habhub.org/#!qm=All&q=George_SUSF_chase
[11:24] <amell> where are these ssdv images? i can only find someones lab at ssdv.habhub.org
[11:24] <mattbrejza-> ssdv?
[11:25] <Geoff-G8DHE> Camera onboard but not SSDV I assumed ?
[11:25] Action: amell is concerned to see that there is a RIMMER near daveakes place.
[11:26] <daveake> Friday's flights all have SSDV
[11:26] G4TNX (902efc09@gateway/web/freenode/ip.144.46.252.9) joined #highaltitude.
[11:26] <daveake> for some reason
[11:26] <amell> oh, i thought there was one today.
[11:26] <amell> any idea what the main payload is for joey
[11:27] <Geoff-G8DHE> Ah LoRa on the S.Coast as well
[11:27] G0ATW (51909922@gateway/web/freenode/ip.81.144.153.34) joined #highaltitude.
[11:28] <Andrew_M0NRD> I'd avoid Nottingham in those chase cars
[11:28] <daveake> I'd avoid it period
[11:28] <henryplumb_> good call daveake
[11:29] <Andrew_M0NRD> mind you alternative is Mansfield..
[11:29] <Vaizki> so far it's predicting hiking boots
[11:29] <fsphil> ssdv page should be interesting on friday
[11:30] <fsphil> do we have enough receivers? P)
[11:30] <amell> unfortunately i am in a funeral for the eclipse.
[11:30] <daveake> Doubt it!
[11:30] <daveake> "in" ?
[11:30] <henryplumb_> how many flights on friday?
[11:31] <amell> as in actually attending a funeral
[11:31] <fsphil> aww
[11:31] <amell> so maybe i can get away with wearing eclipse glasses.
[11:31] <daveake> at least 3 flights
[11:31] <mattbrejza-> lora working well in chase car
[11:31] <henryplumb_> they from cambridge
[11:31] <Maxell> PE1ANS got some packets? Must be some sort of tropo, or altitude is off
[11:32] <fl_0> can anyone tell me, how flight data is entered into the flight DB?
[11:33] <fl_0> we will have a balloon setting off on friday here in JO31 and so far tehre is no item in the fligt DB for that
[11:33] <infaddict> i have my ecplise glasses ready but forecast is a bit cloudy
[11:33] <PE2G> !dial a0cd
[11:33] <SpacenearUS> 03PE2G: Latest dials for 03SUSF LoRa RTTY 10(a0cd): 03434.449988 MHz, 434.076 MHz, 434.45222 MHz, 434.44941 MHz, 434.4495 MHz, 434.45224 MHz, 434.450009 MHz, 434.45 MHz
[11:33] <SpacenearUS> 03PE2G: Latest dials for 03SUSF LoRa RTTY 10(a0cd): 03434.29922 MHz, 434.2988 MHz
[11:33] <fsphil> fl_0: s it sending using the normal ukhas telemetry standard?
[11:33] <fsphil> is it*
[11:33] <Geoff-G8DHE> Have you put in a Payload and Flight document
[11:33] <pc1pcl> Maxell: UpuWork got some over the horizon earlier too. Also some indications tha tthe positions might be encoded 'wrong' so it is not where we think it is?
[11:33] <fsphil> or APRS?
[11:33] <infaddict> fl_0: you need to enter a flight doc on http://habitat.habhub.org/ and get it approved
[11:34] <fl_0> fsphil: I guess I got to read some docs on ukhas telemetry standard :)
[11:34] <fl_0> it has an 1W APRS TX onboard
[11:34] <fsphil> the map can be setup to import aprs data from a callsign
[11:34] <fl_0> as well as SSDV imagery downlink on 434.650
[11:34] <fsphil> although I'm not sure how that's done
[11:35] <fsphil> SSDV data will be uploaded to ssdv.habhub.org by dl-fldigi
[11:35] <fl_0> sure
[11:35] <fsphil> as long as the receiver is in online mode
[11:35] <fl_0> my RX will be in online mode :)
[11:35] <fsphil> if you can get more than one person to receive it too, you'll get better coverage
[11:35] <fl_0> I was just thinking about, why that ballon is not in the flight DB
[11:35] <fl_0> I had to configure my dl-fldigi manually
[11:36] <amell> finding that payload in the peak district should be quite good fun.
[11:36] <fsphil> you need an approived flight document to get on that list
[11:36] <fl_0> thought that could be done automagically if the ballon was in the DB
[11:36] <fsphil> if you create a payload document, then a flight document, get that approved in #habhub, it will appear on the list
[11:36] <fsphil> though it will only appear on the list during the time you set in your flight document
[11:36] <Geoff-G8DHE> Only if you supply the crystal ball to tell it freq, date, launch point ;-)
[11:37] <fl_0> kk
[11:37] <fsphil> if you're sending only ssdv and no other telemetry then you might need to setup a fake string format
[11:37] <fl_0> it is launched by students from a university nearby
[11:37] <fl_0> they are using an educational callsign for that
[11:38] <fsphil> another ssdv flight. this should be interesting :)
[11:38] <fl_0> I just got that information by chance :)
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[11:38] <fsphil> if you ask in #habhub closer to the event, I'm sure someone can setup the importer pretty quickly
[11:38] <fsphil> for APRS > tracker map
[11:39] <fsphil> I must learn how to do that sometime
[11:39] <fl_0> will that balloon be on the tracker only if its a confirmed flight?
[11:39] <fl_0> ah ok, will do that
[11:40] <infaddict> a payload document is enough to get you on the map, but you wont appear in the fldigi flight list (you have to click all flights to find yourself). to get on the flight list you need an approved flight doc.
[11:40] <amell> payload is currently forecast to land on a high moor. I wonder if the predictor takes AGL into account.
[11:40] <fl_0> infaddict: tu. I will have a look for that payload doc
[11:41] <infaddict> like fsphil said if you arent sending any telemetry data, you probably need a short fake sentence setup
[11:41] <fl_0> I only got involved into the HAB topic very shortly and by acident
[11:41] <fl_0> accident
[11:41] <fl_0> so I am still leraning =)
[11:41] <fsphil> it's good fun :)
[11:41] <fl_0> definitely
[11:42] <fl_0> I set up dl-fldigi all night because the guys just informed me the night before the launch
[11:42] <fl_0> And I had never seen that before =)
[11:42] <fsphil> there does seem to be a tradition of leaving things to the last minute
[11:43] <fl_0> ack
[11:45] <fl_0> aehm, where can I find the payload doc?
[11:45] <Vaizki> are you using fldigi or dl-fldigi?
[11:45] <fl_0> ah found it
[11:45] <Vaizki> the dl- version can automatically download payload and flight docs, then autoconfigure for you
[11:45] <fl_0> genpayload
[11:45] <infaddict> fl_0: goto that link i gave you and click genpayload
[11:46] <fl_0> infaddict: jupp just found it
[11:46] <fl_0> Vaizki: thanks, but I want a flight to be entered into the DB
[11:46] <infaddict> key thing is to get the callsign agreed and then 1 or more pieces of info in the sentence
[11:46] <fl_0> not download it because it is not existent up to now
[11:47] <amell> !dial joey
[11:47] <SpacenearUS> 03amell: Latest dials for 03JOEY 10(5a11): none
[11:47] <fl_0> infaddict: the callsign is agreed and will be DN4GB-11
[11:47] <fl_0> as used for the last two missions
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[11:48] <infaddict> great so you can use DN4GB-11 as callsign and then xmit 1 other thing (like a incremental number)
[11:48] <infaddict> if you have nothing else to xmit, like lat/long/altitude
[11:48] <amell> Is anyone here actually at churchill college now?
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[11:48] <fl_0> they did transmit telemetry via APRS last time
[11:49] <Vaizki> fl_0, ok sorry I misunderstood.
[11:49] <Vaizki> fl_0, where is this launch from?
[11:50] <fl_0> infaddict: i.e. "APRS-Telemetrie: U=11.9V I=0185.0mA T=+51,0°C GPS: ON WHS1" transmitted via ARPS
[11:50] <fl_0> APRS
[11:50] <fl_0> and SSDV on 70cms
[11:50] <fl_0> Vaizki: will be launched from the rhine-ruhr area in western Germany
[11:51] Nick change: Guest89372 -> berndj
[11:51] <fl_0> approx. on friday morning
[11:52] <fl_0> infaddict: I guess the transmitted data is the one from the SSDV downlonk?
[11:53] <infaddict> mmm so i'm not an expert but believe just sending SSDV might not be enough to get on the map and use fldigi
[11:54] <infaddict> hence suggestion for payload to send some sort of string
[11:55] <daveake> ssdv does not put you on the map
[11:56] <fl_0> hhm k
[11:56] <fl_0> so not in the flight DB also?
[11:56] <Vaizki> you can get on the map through APRS import?
[11:56] <daveake> ssdv is separate
[11:57] <fl_0> okay, so entering the data for SSDV is not enough for a payload?
[11:58] <daveake> dl-fldigi uploads ssdv packets to a separate url. The server side code collates packets and generates images. You don't even need a flight doc for this side to work
[11:58] <Geoff-G8DHE> The SSDV does send Latitude, Longtitude or callsign
[11:58] <Geoff-G8DHE> only picture info
[11:58] <Geoff-G8DHE> does NOT
[11:58] <daveake> SSDV packets include a callsign
[11:58] <daveake> callsign / image number / packet number, basically
[11:58] <Geoff-G8DHE> yes it must as ait appears!
[11:59] <daveake> Then, when a packet gets uploaded, the url includes the sender's callsign
[11:59] <infaddict> so can that SSDV packet be imported into spacenear.us using the APRS api or does a separate data sentence need to be sent?
[12:00] <infaddict> i mean just the callsign or one of the numbers (not the image!)
[12:00] <daveake> I'm struggling to understand what you're asking
[12:00] <amell> whats the benefit of launching habs during an eclipse? do you put film over the camera lens?
[12:00] <daveake> ssdv is image data. No telemetry.
[12:00] <daveake> spacenear.us wouldn't know what to do with the ssdv
[12:01] <daveake> And it's nothing to do with APRS either
[12:01] <infaddict> yep thats what i thought. but what data is needed to get onto map as a minimum? i was wondering if the SSDV callsign and packet number could be imported.
[12:01] <daveake> No you need lat/long
[12:01] <amell> a telemetry string with lat long alt needs to be sent to habitat to appear on the map
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[12:01] <infaddict> right, so theres your answer fl_0
[12:01] <infaddict> you need to send callsign+lat+long as a minimum
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[12:01] <infaddict> to get on the map
[12:02] <infaddict> that is above and beyond your SSDV
[12:02] <amell> and ideally have a payload doc too.
[12:02] <daveake> and payload id
[12:02] <fl_0> okay and that would be send by my dl-fldigi?
[12:02] <amell> yes.
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[12:02] <daveake> I don't think the APRS importer needs a payload doc
[12:02] <amell> dl-fldigi talks to two different servers. one is habitat for map, and one is ssdv uploader.
[12:02] <daveake> So presumably there's a route into spacenear that doesn't need one
[12:03] <daveake> It might actually be the same server these days
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[12:03] <amell> daveake: ssdv appears to still go to sanslogic.co.uk
[12:04] <daveake> ok
[12:04] <amell> fsphils box as far as i can see?
[12:04] <daveake> I thought it was being moved at some point
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[12:06] <Vaizki> 14 stations tracking FSUS..
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[12:08] <fsphil> yea ssdv was hosted on my server before being moved to habhub
[12:08] <fsphil> my server just forwards the traffic these days
[12:09] <infaddict> Vaizki: yep and lunch break time so firing up the yagi to see if i can find it
[12:09] <Laurenceb> http://i.imgur.com/qQ6SQ.jpg
[12:09] <Laurenceb> when you see it...
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[12:10] <herman_> !flights
[12:10] <SpacenearUS> 03herman_: Current flights: 03SUSF L5 P-Ruskin 10(a0cd), 03Nova 28 10(5a11), 030x06 - Pico Flight 10(3ed8)
[12:11] <amell> isnt there a joey flight at 12 noon?
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[12:12] <herman_> !susf
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[12:12] <mattbre> ada,
[12:12] <herman_> wat is freq for SUSF ??
[12:13] <amell> 434.300
[12:13] <Geoff-G8DHE> !dial SUSF
[12:13] <SpacenearUS> 03Geoff-G8DHE: Latest dials for 03SUSF LoRa RTTY 10(a0cd): 03434.298764 MHz, 434.299 MHz, 434.29872 MHz, 434.2982 MHz
[12:13] <mattbre> adam sent a photo of theur balloon with the captiom 'cycle puncture repair kit', so we shall see how that does
[12:13] <herman_> i lost that command tnx
[12:13] <amell> mattbre: that doesnt sound good
[12:13] <fl_0> ok, so I will just manually configure my dl-fldigi for the flight and that will hopefully publish the data to the tracker :)
[12:13] <mattbre> 10mw still uplinking
[12:14] <fl_0> SSDV upload worked last time
[12:14] <fl_0> but I forgot to check the tracker =)
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[12:15] <Bob_Saget> hey has anyone in here heard from aadamson ?
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[12:17] <Vaizki> mattbre, there's a downlink field telling when last uplink packet was received?
[12:17] <PE2G> herman_: I have traces from FSUS on 434.454
[12:18] <fl_0> One more question to the dl-fldigi thing ... The autoconfiguration for flights in dl-fldigi is also feed from the flight DB isn't it?
[12:18] <fl_0> Or can I configre a flight locally by hand?
[12:18] <herman_> PE2G: ik ook
[12:18] <herman_> green
[12:19] <PE2G> herman_: Nice!
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[12:19] <herman_> PE2G: u are going also to satellite day 25 maart ?
[12:20] <mattbre> tghere is a counter
[12:20] <mattbre> for uplink
[12:20] <PE2G> herman_: Don´t know yet if i have the time.
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[12:21] <herman_> PE2G: u have time planty
[12:21] <herman_> hihihihi
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[12:21] <PE2G> herman_: not :)
[12:21] <herman_> ok ok u win
[12:22] joekul (4d38234a@gateway/web/cgi-irc/kiwiirc.com/ip.77.56.35.74) joined #highaltitude.
[12:22] <herman_> pe2 i place today the new tower and new antennes
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[12:23] <PE2G> herman_: Are the antennas up already?
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[12:24] <herman_> ONLY 2 MTR AND 70CM
[12:24] WillDWork (c2498339@gateway/web/freenode/ip.194.73.131.57) joined #highaltitude.
[12:24] <PE2G> Ok, nice. Do you have any pics?
[12:25] <herman_> not yet later on my site people make a new roof on my house en now it is my turn to place the antennes
[12:26] <PE2G> I see, good luck.
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[12:30] <infaddic_> should i expect to see anything from SUSF with a yagi and SDR dongle, but no amp/filter? not getting a thing. point yagi due south, mounted vertically.
[12:31] <infaddic_> what vertical angle should i use?
[12:31] <herman_> PE2G: look at this link http://pb0ahx.nl/webalbum/zoldershack/
[12:32] <herman_> PE2G: it is my new radio room
[12:32] <PE2G> herman_: Quite some work in process there :)
[12:33] <amell> Still cant see joey, is it happening today?
[12:33] <herman_> and on pb0ahx.nl u can see live video from my radio room now
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[12:33] <DanielRichman> NOVA28 released
[12:34] <infaddic_> i reckon SUSF is 160 miles away from me. guess i'll have to try next time with habamp.
[12:34] <DanielRichman> 434.590
[12:34] <herman_> PE2G: al the work is done now my turn to work and place al back
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[12:40] <amell> danielrichman, I was looking at 434.630 as originally specified!
[12:40] <amell> distance 13.9km
[12:40] G0WXI_ (1f36438e@gateway/web/freenode/ip.31.54.67.142) joined #highaltitude.
[12:40] <Geoff-G8DHE> infadict the bearig and elevation are displayed on the tracker if you have given it your position
[12:40] <G0WXI_> !dial joey
[12:40] <SpacenearUS> 03G0WXI_: Latest dials for 03JOEY 10(5a11): 03434.125 MHz
[12:41] <amell> bottom tone is at 434.595
[12:42] <amell> looks like only i am receiving it currently!??
[12:43] <Vaizki> ok so I saw on the map "Peak District National Park".. but that's almost completely farmland? What kind of national park is that :)
[12:43] <amell> G8KNN needs to check for new flight docs more frequently :)
[12:44] junderwood (~John@host86-181-204-182.range86-181.btcentralplus.com) joined #highaltitude.
[12:44] <amell> joey sentence numbering is FUBARed.
[12:44] <junderwood> !dial joey
[12:44] <SpacenearUS> 03junderwood: Latest dials for 03JOEY 10(5a11): 03434.125 MHz
[12:45] <amell> its on sentence 16718401 at the moment
[12:45] <junderwood> ... and the frequency
[12:45] <amell> joey at 434.595
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[12:46] <junderwood> So it is. Thanks
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[12:46] <henryplumb> Vaizki - the Peak District is lovely, all smallish mountains and dry stone walls :P
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[12:49] <M6XiMaN> I hear JOEY, but that's a lot of drift
[12:49] hyde00001 (bc1da55f@gateway/web/freenode/ip.188.29.165.95) joined #highaltitude.
[12:49] <amell> no drift here
[12:49] <amell> solid
[12:50] <amell> danielrichman: is there another rtty payload on this flight?
[12:50] <Geoff-G8DHE> !dial joey
[12:50] <SpacenearUS> 03Geoff-G8DHE: Latest dials for 03JOEY 10(5a11): 03434.125 MHz, 434.4498 MHz, 434.5937 MHz, 434.64117 MHz
[12:51] <Vaizki> henryplumb, ok good to know, I just looked at the satellite pics
[12:51] <amell> it is at 434.595
[12:51] <M6XiMaN> Aha
[12:51] <M6XiMaN> I know where the drift is coming from
[12:51] <amell> i assure you it is as i am atomically calibrated
[12:51] <M6XiMaN> This new RTLSDR
[12:51] <M6XiMaN> Nooelec "with greater sensitivity"
[12:51] <M6XiMaN> Yes, to drift
[12:51] <Vaizki> :)
[12:51] Action: M6XiMaN digs out his old rtlsdrf
[12:51] <Vaizki> r820t2?
[12:52] <amell> Nooelec with greater probability of hitting the bin
[12:52] <M6XiMaN> Vaizki: Yeah
[12:52] <M6XiMaN> Seems like I will need to take a soldering iron to it
[12:52] <Geoff-G8DHE> What freq is JOEY on ?
[12:53] <amell> to be fair, the freq is shifting down slightly
[12:53] <M6XiMaN> 434.595
[12:53] <amell> Geoff: told you three times now...
[12:53] <Geoff-G8DHE> I thought so but not seeing it
[12:53] <amell> maybe you need to wait a little
[12:53] <amell> its at 6133 alt now
[12:54] <Geoff-G8DHE> Lets load GE and see if its over the hills yet!
[12:54] <amell> distance 13 km ele 29 deg
[12:54] <Oddstr13> any chance I'll see any of those in Norway?
[12:56] <amell> it is shifting down, 435.594 now
[12:56] <M6XiMaN> And stopped sending data?
[12:56] <M6XiMaN> This Nooelec seems to have settled down now it's warmed up
[12:57] <amell> yes you are right. joey is fooked.
[12:57] <amell> oops. i hope they have another tracker of some sort
[12:58] <amell> danielrichman: joey isnt sending rtty any more. just a carrier and some noise in between
[12:58] <Maxell> Ah, just carrier.
[12:59] <amell> can anyone hear joey? its sending something strange
[12:59] <Vaizki> amell, what does "atomically calibrated" entail? you have a cesium clock?
[12:59] <fsphil> probably lora
[13:01] <amell> nope. its sending 2s long burbles every 8 seconds. and a carrier the rest of the time.
[13:03] <amell> sounds like a police siren.
[13:04] <Andrew_M0NRD> tracker map looks like some cheap Italian Job remake
[13:04] <henryplumb> Haha
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[13:10] <DanielRichman> JOEY should be ~434.59, not 434.12
[13:11] <amell> Daniel: sorry to say joey has died
[13:12] <amell> Danielrichman: hearing a carrier for 8s, and a beating tone for 2s. ad infinitum.
[13:12] <amell> Hope you have another tracker/sms on that payload
[13:13] <edmoore> does an eclipse ount as visual flight conditions?
[13:13] <edmoore> amell, as long as there's a carrier you can recover it
[13:13] <amell> I was wondering if the cameras need to have solar film over them
[13:13] <edmoore> you can just direction-find your way in
[13:14] <amell> edmoore: sure.
[13:15] <henryplumb_> amell - i can hear Joey now, very strange noise lol
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[13:21] <Vaizki> yea I got it on radiogeek.co.uk websdr
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[13:27] <PhilSUSF> the habhub app could use some optimisation for mobiles
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[13:28] <tweetBot> @thecraag: We reckon it'll land on that hill over there! @SUSpaceflight #ukhas http://t.co/56Uk5ksYVd
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[13:29] <amell> what are you expecting it to burst at?
[13:29] <mattbre> -2km
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[13:29] <henryplumb_> Haha lol
[13:29] <PhilSUSF> someone pop it please
[13:29] <mattbre> from curent
[13:30] <amell> so 34-35K burst. fingers crossed
[13:30] <Vaizki> you lost uplink at 4km altitude?
[13:31] <UpuWork> I could probably hit it with uplink via the Yagi, have a 7W PA as well
[13:31] <UpuWork> not set up though
[13:32] <amell> is there an agreed uplink protocol?
[13:32] <mattbre> stillnuplinking at 10mW
[13:32] <Vaizki> uplink_count is not increasing though?
[13:33] <mattbre> lolbit wqs until recently
[13:33] <amell> it just went up to 143
[13:33] <Vaizki> ah ok tracker web shows 84 since 4km
[13:33] <Vaizki> 83 even
[13:34] <mattbre> yea im not recieving thstb
[13:34] <mattbre> one
[13:34] <amell> be good if any messages sent via uplink were republished in telemetry.
[13:34] <amell> Upuwozherelolz
[13:34] <mattbre> yea! it just says pingpingoing atm
[13:34] <Vaizki> "get down!"
[13:35] <fsphil> balloon relay chat
[13:35] <mattbre> s/!/,
[13:35] <Vaizki> uhhuh it's done a u-turn
[13:36] <amell> predict seems a bit off today
[13:36] <joekul> gone undecodable
[13:36] <henryplumb_> burst
[13:36] <amell> aye
[13:36] <Vaizki> yup.. it obeyed my uplink
[13:36] <Vaizki> just a bit of lag
[13:37] <amell> spinning a lot
[13:37] <CHRISG7OGX> "pop"
[13:37] <Vaizki> -50m/s
[13:37] <Vaizki> that's quick
[13:37] <amell> drifty and spinny
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[13:38] <infaddict> fast descent
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[13:38] <infaddict> Hope Matt has his walking boots ;-)
[13:39] <amell> this is hard to decode as its falling in freq
[13:39] <mattbre> we havevplastic bags
[13:39] <henryplumb_> haha
[13:39] <infaddict> some little paths near current prediction. if it goes beyond that theres a ton of fields with not much access.
[13:41] <mattbre> national park though
[13:41] <Vaizki> what do you mean.. you can walk?
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[13:42] <amell> its an open access land.
[13:42] <infaddict> indeed, just a bit harder
[13:42] <infaddict> open land walking
[13:43] <amell> in other words, hiking :)
[13:43] <Vaizki> hey joey is alive?
[13:43] <amell> nope
[13:44] <Vaizki> I hear it on the websdr
[13:44] <amell> just carrier
[13:44] <Vaizki> no, I hear rtty warble
[13:44] <amell> 8s carrier, 2s burble
[13:45] <Vaizki> I heard that earlier, it's different now
[13:45] <amell> really? i will take another look
[13:45] <Geoff-G8DHE> no its back again
[13:46] <amell> so it is, but a little faint
[13:46] <Vaizki> $$JOEY,16718443,13:45:36,52.5022810,-0.2023901,20913,-17.0,9,3*B50F
[13:46] <henryplumb_> yeah, i can hear joey
[13:46] <amell> did it just come back just now?
[13:46] <amell> good news. probably whatever water was in it dried out
[13:47] <mattbre> 8sec sounds like the avr wdt
[13:49] <G0WXI> !dial joey
[13:49] <SpacenearUS> 03G0WXI: Latest dials for 03JOEY 10(5a11): 03434.6488 MHz, 434.125 MHz, 434.59444 MHz
[13:49] <amell> 434.595 for the lower tone
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[13:54] <Vaizki> matt is trying to catch the payload through the sunroof
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[13:56] <SpacenearUS> New vehicle on the map: 03VA2RMG-10 - 12http://tracker.habhub.org/#!qm=All&q=VA2RMG-10
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[14:11] <Vaizki> I predict photos of payload touching down..
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[14:11] <Vaizki> oops I shouldn't have said that...
[14:12] <infaddict> close to road now which is great
[14:12] <infaddict> dunno how good vis is tho
[14:12] <daveake> It is surprisingly difficult to be near a payload when it lands
[14:13] <daveake> but this one does look good
[14:16] <Vaizki> well it's down and not too hard to find
[14:17] <Vaizki> watch out for the cows
[14:17] <infaddict> how do u know its down?
[14:17] <fsphil> we got cow
[14:18] <Geoff-G8DHE> http://360.g8dhe.net/HAB_Flights/2015_Flights/SUSF_L5_P-Ruskin_20150316/index.php?ind=5
[14:19] <Geoff-G8DHE> because its the same height as the ground
[14:19] <SpacenearUS> New position from 03VE2WMG-11 after 03a day silence - 12http://tracker.habhub.org/#!qm=All&q=VE2WMG-11
[14:19] <infaddict> ok shouldnt the rate goto 0?
[14:20] <infaddict> still be received yet habhub reports V and H rate
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[14:20] <daveake> only if >= 2 packets is uploaded after landing
[14:20] <Geoff-G8DHE> probably no update since hitting the ground
[14:20] <infaddict> ah right i see thx
[14:21] <daveake> And usually, once you have the landing position, your priority is to go and get the payload, not worry if you're uploading via 3G or not
[14:21] <Vaizki> well matt is still keeping us updated :)
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[14:22] <infaddict> yep
[14:22] <Geoff-G8DHE> aerial might be squashed underneath!
[14:22] <Vaizki> too bad we can't get the cows on the map
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[14:25] <Vaizki> ouch joey just went bad again
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[14:25] <Vaizki> and it's on the way down at <10k
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[14:26] <Geoff-G8DHE> Oh looks like JOEY is back into fail mode again
[14:28] <Vaizki> and it's got only about 10minutes to wake up..
[14:31] <Geoff-G8DHE> JOEY back again
[14:31] <Vaizki> yea :)
[14:31] <Vaizki> $$JOEY,16718543,14:31:28,52.6361730,-0.4026461,4472,-19.5,7,3*FB3E
[14:32] <Vaizki> just in time
[14:32] <infaddict> go joey!
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[14:33] <Vaizki> but it's drifting like crazy
[14:33] day (~yashi@unaffiliated/day) left irc: Ping timeout: 245 seconds
[14:34] <Vaizki> or maybe the websdr is
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[14:36] <tweetBot> @thecraag: Easy :) #ukhas http://t.co/V1s8QvUmVr
[14:36] <Vaizki> cheers
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[14:40] <infaddict> congrats
[14:41] <Vaizki> cleethorpe websdr lost joey
[14:41] <Vaizki> the fade to noise floor is very very quick when it happens
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[14:42] <Vaizki> that's crazy.. joey is only at 550m and tracked by 4 stations=
[14:42] <Vaizki> and still from 314m one catch
[14:43] hyde00001 (2ee970a5@gateway/web/freenode/ip.46.233.112.165) joined #highaltitude.
[14:45] <db_g6gzh> at 0.2° elevation on that last one
[14:45] <henryplumb_> Well done guys :)
[14:46] Nick change: db_g6gzh -> dbrooke
[14:46] <Geoff-G8DHE> Object Movie for SUSF for those who like them! http://360.g8dhe.net/HAB_Flights/2015_Flights/SUSF_L5_P-Ruskin_20150316/index.php?ind=5
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[14:49] <Vaizki> does anyone have recodings of 1200bps RTTY? I made fldigi run RTTY at 48kHz instead of 8kHz and it seems to be working for my own tracker but was wondering if there's any real test material
[14:51] <tweetBot> @SUSpaceflight: Soared overhead and landed in the next field #ukhas
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[14:55] <fsphil> I had it going at 2400 once
[14:55] <lz1dev> !hysplit default
[14:55] <SpacenearUS> 03lz1dev: No HYSPLIT for that callsign
[14:55] <lz1dev> !hysplit defaults
[14:55] <SpacenearUS> 03lz1dev: HYSPLIT defaults: 03aeth%, ps-%, atsat-%, venus1-3, k6rpt-%, sp9uob-11
[14:56] <lz1dev> !hysplit
[14:56] <SpacenearUS> 03lz1dev: HYSPLIT available for: 03ATSAT-3, ATSAT-4, K6RPT-11, SP9UOB-11
[14:58] <lz1dev> !hysplit run ps-38
[14:58] <SpacenearUS> 03lz1dev: Your job has been added to the queue. Check in a few minutes
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[15:01] Nick change: fl_0 -> fl_0|afk
[15:01] <adamgreig> nice, thanks for all the help tracking joey today guys!
[15:01] <adamgreig> haven't heard back from the school yet but hopefully an easy recovery for them
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[15:06] <Vaizki> this is making me a bit scared of launching in Finland.. it's going to be up a tree or in a lake (because that's what Finland is mostly) and probably won't be able to track it lower than 1000m
[15:07] <Vaizki> I see a yagi in my future....
[15:08] <pc1pcl> Vaizki: 1200bps RTTY, fldigi is supposedly a TX too, so you could probably have it send some and record that or feed it back through the analogue hole to a second instance?
[15:09] <pc1pcl> or did you only fix/mess with the RX sid eof things so far?
[15:09] <Geoff-G8DHE> Anan OM for NOVA28-JOEY as well http://360.g8dhe.net/HAB_Flights/2015_Flights/NOVA28-JOEY_20150316/index.php?ind=0
[15:09] <Vaizki> I only touched RX
[15:09] <Vaizki> well I guess my changes do affect TX as well but...
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[15:19] <amell> looking at joey descent profile, it looks like it dropped like a stone for a bit.
[15:19] <adamgreig> did anyone have a dial frequency at the end for joey?
[15:19] <adamgreig> on the phone to the school at the moment
[15:20] <Geoff-G8DHE> !dial JOEY
[15:20] <SpacenearUS> 03Geoff-G8DHE: Latest dials for 03JOEY 10(5a11): 03434.59427 MHz, 434.5937 MHz, 434.125 MHz
[15:21] <amell> adamgrieg, it was 434.593600
[15:21] <amell> adamgreig ^
[15:21] <adamgreig> thanks
[15:21] <amell> atomically calibrated frequency.
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[15:22] <daveake> It's always good to know the dial frequency to the nearest 1Hz
[15:22] <amell> yes i spent a ridiculous amount of time calibrating my rtl stick
[15:22] <daveake> And your central heating?
[15:22] <amell> 79.2ppm in the 434 band
[15:22] <amell> central heating is off now :)
[15:22] <daveake> worse
[15:23] <daveake> Don't complain that my payload frequency is varying on Friday; it'll be the change in temperature in your room when the eclipse happens
[15:23] <amell> SUSF - did it get recovered?
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[15:24] <amell> daveake: I will be singing hymns at a funeral so no I wont complain.
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[15:25] <henryplumb_> daveake - where are you launching from on friday?
[15:25] <daveake> Leicester Racecourse
[15:26] <amell> the high life. will you get pimms and lemonade?
[15:26] <henryplumb_> nice, i'll be listening from Cambridge :)
[15:26] <daveake> I need to be sober, sadly
[15:27] <daveake> less pimms more pi
[15:32] <tweetBot> @SUSpaceflight: Flicking through photos on the way back #ukhas http://t.co/K4ZFEyUfjE
[15:32] <edmoore> you don't need to be sober to launch
[15:33] <henryplumb_> love that pic
[15:33] <edmoore> apart from the chase car driver i don't think there is much that wouldn't benefit from a glass in hab
[15:33] <daveake> I was thinking more about the answering questions with a live TV camera in my face
[15:33] <daveake> Mind you, perhaps drink would help ....
[15:34] <henryplumb_> daveake - settle your nerves :P
[15:34] <daveake> exactly :)
[15:34] <henryplumb_> what program is the TV for?
[15:34] <daveake> Stargazing
[15:34] <henryplumb_> Ah okay, nice
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[15:39] <infaddict> Is it a live segment daveake or pre-recorded piece?
[15:39] <daveake> launch is recorded
[15:39] <daveake> 1 or 2 live segments later I believe
[15:40] <edmoore> so is it live?
[15:40] <edmoore> or is it on in the evening?
[15:40] <daveake> Both
[15:40] <daveake> There's a program on from 9-10am showing live eclipse pix
[15:40] <daveake> They have aplane over the Faroes so they should get some good shots
[15:40] <infaddict> the evening TV program is 90% live, with some pre-recorded segments to fill in gaps and jump between locations
[15:40] <UpuWork> where is Buzz going to be ?
[15:41] <daveake> @TheRealBuzz ?
[15:41] <UpuWork> yup
[15:41] <daveake> Dunno - he's on the Wednesday and Thursday shows only I believe
[15:41] <UpuWork> ah shame
[15:41] <UpuWork> could do with a navigator
[15:41] <daveake> lol
[15:42] <edmoore> suspect you might get more than you bargained for
[15:42] <UpuWork> "So Mr Aldrin do you have any experience in navigation"
[15:42] <daveake> lol
[15:42] <edmoore> he's turned into a bit of a fruitcake
[15:42] <UpuWork> I was just typing that
[15:43] <daveake> What's the betting he can get your Audi to issue a code 1202?
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[15:43] <daveake> Good job you didn't pay £1800 for the radar option
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[15:44] <SpacenearUS> New vehicle on the map: 03ov1jl_chase - 12http://tracker.habhub.org/#!qm=All&q=ov1jl_chase
[15:45] <UpuWork> Is team Yorkshire recovered ?
[15:51] <adamgreig> NOVA28 recovered
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[15:51] <adamgreig> well, the school's stuff, anyway
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[16:21] <amell> daveake: is your payload sun pointing always or sometimes?
[16:22] <amell> and code 1202 is expensive. faulty fuel injector #2
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[16:26] Nick change: BitEvil -> SpeedEvil
[16:28] <mattbrejza> team yorkshure (derbyshure?) had an easy revivery
[16:28] <mattbrejza> have some photos of it directly overhrad
[16:29] <mattbrejza> see twitter
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[16:34] <UpuWork> which twitter mattbrejza ?
[16:34] <mattbrejza> suspaceflight
[16:35] <amell> https://twitter.com/SUSpaceflight/status/577475805200179200/photo/1
[16:35] <UpuWork> oh yeah sweet
[16:37] <mattbrejza> very spinny, nut thr stills camera was fine
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[16:38] <amell> did you see it land?
[16:38] <mattbrejza> good thing i set the focus to inf
[16:39] <mattbrejza> well landed slightly behind a ridge so didnt see actual contact
[16:39] <mattbrejza> but it came overhead and we watches it for a while
[16:42] <edmoore> have you become gollum?
[16:43] <dbrooke> precious payload ?
[16:44] <Laurenceb> thought that area looked familiar
[16:44] Action: Laurenceb used to live in Buxton
[16:44] <dbrooke> mattbrejza: what was the sequence for the LoRa coding? I seemed to decode 2 in each cycle.
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[16:46] <mattbrejza> ah nice
[16:48] <mattbrejza> https://github.com/suspaceflight/lora-tracker/blob/master/firmware-tracker/main.c dbrooke
[16:48] <mattbrejza> see the long array
[16:49] <dbrooke> looking ...
[16:50] <mattbrejza> it was arranged so it met the 10%DC limit
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[16:52] <daveake> I didn't think of it before, but I see no reason why you couldn't do the 10%DC wide bandwidth thing, and spend the rest of the time at <25kHz, all from the same transmitter
[16:53] <dbrooke> OK that make sense, I was set for 20K8 SF8 and saw sequence count steps of 3 and 5
[16:53] <mattbrejza> yea thats what i dis, allowed a great dral of testing
[16:55] <edmoore> are you drunk?
[16:55] <mattbrejza> just on a phone
[16:56] <dbrooke> I would say the LoRa was slightly less sensitive than RTTY in the limit but on the descent worked better because the RTTY didn't re-capture AFC a lot of the time
[16:56] <mattbrejza> conmectbot doesnt correct typos
[16:57] <mattbrejza> yea i expect rtty to be better in a awgn case, but its not as convient
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[16:57] <mattbrejza> and yea it worked well for descent, even on 125khz
[16:58] <dbrooke> I only have one LoRa rx set up and didn't try other modes
[16:59] <mattbrejza> nice other people were able to recieve
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[17:00] <dbrooke> hopefully I can get a board from Upu to replace my current lash-up
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[17:05] <nickjohnson> I just launched the Kickstarter for Tsunami, my Arduino-based signal generator! :) http://kck.st/1GdYIVu
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[17:12] <Vaizki> umm ok. arduino + kickstarter = success
[17:13] <nickjohnson> Yeah, well, we'll see :)
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[17:17] <Jartza> well
[17:17] <Jartza> I've been looking for a signal generator quite long
[17:17] <Jartza> so I backed this one :)
[17:18] <Vaizki> I might also but looking at the specs :)
[17:19] <Geoff-G8DHE> There seem to be a lot of AD98xx shields available for Arduinos ..
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[17:20] <Jartza> I don't want arduino shield :)
[17:21] <Vaizki> what is the input side built from?
[17:22] <nickjohnson> Geoff-G8DHE: This has several advantages over them, including a more accurate crystal, which is also used to drive the AVR.
[17:22] <Vaizki> what is the high speed comparator?
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[17:23] <nickjohnson> Vaizki: Now you're making me dig through my BoM
[17:24] <nickjohnson> MCP6561RT-E/OT
[17:24] <nickjohnson> http://www.farnell.com/datasheets/1789215.pdf
[17:26] <Vaizki> ok thx
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[18:04] <Ian_> Digging through BoM is considered part of the price for support !
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[18:07] <nickjohnson> Ian_: Too true
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[18:14] <Vaizki> nickjohnson: sorry if I missed it but can you set that up as a tracking function gen/spectrum analyzer? and if yes, how fast will it sweep?
[18:15] <nickjohnson> Vaizki: You can use it to do frequency sweeps. The speed is up to you, limited only by the speed at which you can write new frequencies over SPI. And you could do input tracking.
[18:16] <nickjohnson> Not sure how that would combine to make it a spectrum analyzer, though, can you elaborate? Seems you'd need a mixer at a minimum.
[18:19] <Vaizki> yea I guess so.. basically this http://www.radio-electronics.com/info/t_and_m/spectrum_analyser/analyzer-tracking-generator.php
[18:22] <nickjohnson> Ah, right. Yeah, you can do signal measurement stuff like that
[18:22] <nickjohnson> Output a frequency, apply it to the DUT, measure the returned amplitude and phase
[18:22] <nickjohnson> That's one of the tasks I designed it for, in fact
[18:23] <edmoore> that's cool
[18:23] <edmoore> at dc too?
[18:23] <edmoore> if so you have a handy systems analyser
[18:25] <nickjohnson> The whole thing is DC coupled, so yes :)
[18:25] <nickjohnson> Well, with the exception of the edge detector :P
[18:27] <SpacenearUS> New position from 03PI_SKY_PLUS after 032 days silence - 12http://tracker.habhub.org/#!qm=All&q=PI_SKY_PLUS
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[18:43] <Laurenceb> has anyone here ever had any luck talking to GoPro?
[18:43] <arko> they are not very nice
[18:43] <Laurenceb> my Hero 3+ is just unusable glitchy :-/
[18:44] <arko> huge pain to get anything out their engineers
[18:44] <Laurenceb> was wondering if they might be able to help
[18:44] <Laurenceb> hmf
[18:44] <arko> oh, i dunno about customer support
[18:44] <Laurenceb> i see they are using a fake VID and never passed USB certification
[18:44] <Laurenceb> not a good sign
[18:44] <Laurenceb> their usb stack hangs on linux
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[18:44] <Laurenceb> i have to take the battery out of the camera
[18:45] <Laurenceb> also they have no debouncing on the WKUP input line
[18:45] <Laurenceb> i keep hanging the camera and it draws about 2A from the supply line
[18:45] <Laurenceb> just EMI on the line, its crazy sensitive
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[18:46] <Stefan93_> Hey guys can you tell me from what material the tethers are made?
[18:46] <Laurenceb> maybe i should send an email to usb foundation, whatever they call themselves
[18:46] <Laurenceb> or lulz
[18:46] <Laurenceb> threaten GoPro with that
[18:47] <Laurenceb> what a bunch of tards they are
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[18:47] <edmoore> Stefan93, nylon braid often
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[18:49] <Stefan93__> hey guys can you tell me what tethers are you using ?
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[18:51] <Stefan93> hey guys i dont know if you can read this but can you tell me what material the tethers you use are made from?
[18:51] <Stefan93> and also can i use a 50g balloon for a 400g payload and if not why so ?
[18:53] <daveake> We fly free balloons not tethered ones
[18:54] <adamgreig> yea i don't recommend tethering balloons
[18:54] <Stefan93> you dont use any cords at all?
[18:55] <Stefan93> i probably didnt ask the correct question sorr
[18:55] <adamgreig> 18:47:42 edmoore> Stefan93, nylon braid often
[18:55] <adamgreig> depends on your 50g balloon. probably not but it's possible I guess
[18:55] <adamgreig> probably not usefully, anyway.
[18:56] <Stefan93> thanks adam
[18:56] <Stefan93> i just looked at the nylon braid and it seems pretty thick and heavy
[18:56] <Stefan93> is that the case?
[18:57] <daveake> "How long is a piece of string" is a pretty similar question to "how thick is a piece of string"
[18:57] <Stefan93> hmmm is it
[18:57] <Stefan93> fair enough
[18:57] <daveake> Yes it can be thin or thick
[18:58] <Stefan93> ok where do you purchase the cords from or do they come with the balloon ?
[18:58] <daveake> for our purposes (and I have no idea how relevant this is to whatever it is that you want to do) it's typically 1mm or 1.5mm diameter
[18:58] <daveake> randomsolutions.co.uk sell both
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[19:05] <storm_home> nickjohnson: just backed your kickstarter, rather exciting
[19:06] <nickjohnson> storm_home: thanks!
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[19:37] <Lunar_Lander> evening
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[21:44] <PhilSUSF> Evening all
[21:44] Nick change: PhilSUSF -> craag
[21:44] <Upu> evening
[21:44] <Upu> what news of the north ?
[21:45] <craag> we found sparse pieces of the internets among many muddy hills
[21:45] <craag> also payloads descending above us :)
[21:46] <Upu> you were in the peak district
[21:46] <Upu> any pics ?
[21:46] <Upu> of it decending
[21:46] <craag> Yeah, just cropping them now
[21:46] <Geoff-G8DHE> Any chance of that order by FRiday Upu ?
[21:46] <Geoff-G8DHE> before Friday I should say!
[21:46] <Upu> yep no problems Geoff-G8DHE will ship tommorrow
[21:47] <Upu> sure you want it SD ?
[21:47] <Geoff-G8DHE> Mny tks
[21:47] <Upu> you'll get it 1st class
[21:47] <mattbrejza> we knew when we were in The North when we past a sign for 'coalville'
[21:47] <Geoff-G8DHE> OK
[21:47] <mattbrejza> *passed
[21:47] <Upu> haha
[21:47] <Upu> you have a PCB ?
[21:47] <Geoff-G8DHE> Yes the one with a spare position on it!
[21:47] <Upu> ah :)
[21:48] <Upu> need an SMA too ?
[21:48] <Geoff-G8DHE> checks draw Nope I'm fine!
[21:48] <Upu> so 1st class ok ?
[21:49] <Geoff-G8DHE> Yes if shipping tomorrow, should be here Wdnesday Thurasday at worst
[21:49] <Upu> sorted
[21:49] <Upu> will fix tommorrow cheers
[21:49] <Upu> the proper PCB's should be back next week
[21:50] <Geoff-G8DHE> Seems worth putting the extra one on and copying more than one Tx at a time
[21:50] <craag> http://i.imgur.com/dyIDegi.jpg
[21:50] <craag> Simple crop of the best one
[21:50] <Upu> nice one day... :)
[21:50] <Geoff-G8DHE> h yes nice
[21:50] <Upu> that could be "lander comes down on mars"
[21:51] <craag> If you up the contrast a bit (ie tilt the screen back), you can make out balloon remnants slightly to the right, and two payload in line underneath.
[21:52] <Geoff-G8DHE> Don't sneeze on the screen else there will be more payloads!
[21:52] <Upu> the lora worked well
[21:52] <craag> Heh yeah not very clear, was quite far away and I was just snapping in the general direction :P
[21:53] <craag> Saw it by eye overhead, but it's barely a few pixels on the pics
[21:53] <craag> lora worked v well
[21:53] <craag> matt's little handheld thing had no problems at all
[21:53] <craag> picking it up at least
[21:54] <craag> and uplinked successfully with 10mW throughout the flight
[21:54] <craag> ground lora antenna was a 434MHz 5/8 magmount.
[21:57] <Geoff-G8DHE> Yes quite impressed with LoRa, was copying it well before the RTTY was decodable
[21:57] <craag> Geoff-G8DHE: What lora settings were you receiving?
[21:58] <Upu> I was slow
[21:59] <Lunar_Lander> yay landing
[21:59] <Upu> only 6 hours late Lunar_Lander :)
[21:59] <Lunar_Lander> XD
[21:59] <craag> o/ Lunar_Lander
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[22:01] <Geoff-G8DHE> I tried all and Rx all, but the 125Khz not until it was above the Downs, ther others before it cleared them
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[22:01] <craag> Good to hear you got the 125Khz one though
[22:01] <Lunar_Lander> hi craag :)
[22:01] <craag> That's a full ascii rtty sentence sent in ~0.5s
[22:02] <Geoff-G8DHE> Yes first few minutes no luck but when it was above 10Km and a clear path then no problem at all.
[22:02] <Geoff-G8DHE> thatwas using Habamp + crossed beams
[22:03] <Geoff-G8DHE> plus the Airspy teed in as well for RTTY reception
[22:03] <craag> Matt didn't expect much of the 125KHz at all I don't think
[22:03] <craag> But we had it pretty much solidly in the chase car
[22:04] <Upu> worked well
[22:04] <Upu> does mattbrejza's code auto switch between modes ?
[22:04] <craag> His rx, no
[22:04] <Upu> ok so you just picked one ?
[22:04] <mattbrejza> you change via the rotary encoder
[22:04] <Upu> k
[22:04] <Upu> I left it on slow as I have to nip out
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[00:00] --- Tue Mar 17 2015