highaltitude.log.20150704

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[00:05] <Laurenceb_> PS-46 heading for 145.5 degrees
[00:06] <Laurenceb_> *144.5
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[01:10] <SpacenearUS> New position from 03SP3OSJ after 039 hours silence - 12http://tracker.habhub.org/#!qm=All&q=SP3OSJ
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[02:08] <SpacenearUS> New vehicle on the map: 03SP3OSJ-12 - 12http://tracker.habhub.org/#!qm=All&q=SP3OSJ-12
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[02:54] <SpacenearUS> New vehicle on the map: 03BAL254-11 - 12http://tracker.habhub.org/#!qm=All&q=BAL254-11
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[03:08] <SpacenearUS> New vehicle on the map: 0376_chase - 12http://tracker.habhub.org/#!qm=All&q=76_chase
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[03:53] <SpacenearUS> New position from 03V1 after 03a day silence - 12http://tracker.habhub.org/#!qm=All&q=V1
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[04:00] Nick change: day_ -> day
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[04:22] <SpacenearUS> New vehicle on the map: 03DO6SOM-8 - 12http://tracker.habhub.org/#!qm=All&q=DO6SOM-8
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[04:28] <SpacenearUS> New vehicle on the map: 03V-1 C_chase - 12http://tracker.habhub.org/#!qm=All&q=V-1%20C_chase
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[04:39] <SpacenearUS> New vehicle on the map: 03v1-charli_chase - 12http://tracker.habhub.org/#!qm=All&q=v1-charli_chase
[04:46] <SpacenearUS> New vehicle on the map: 03Sergio_chase - 12http://tracker.habhub.org/#!qm=All&q=Sergio_chase
[04:54] <SpacenearUS> New vehicle on the map: 03V-1 A_chase - 12http://tracker.habhub.org/#!qm=All&q=V-1%20A_chase
[05:00] <SpacenearUS> New vehicle on the map: 03V1_CHARLY_chase - 12http://tracker.habhub.org/#!qm=All&q=V1_CHARLY_chase
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[05:03] <YO9GJX> http://www.southgatearc.org/news/2015/july/balloon_flight_proves_embarrassingly_unpredictable.htm#.VZdo7U5uQW0
[05:13] <SpacenearUS> New vehicle on the map: 03V1-B1_chase - 12http://tracker.habhub.org/#!qm=All&q=V1-B1_chase
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[06:51] <DL7AD> good morning
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[07:13] <SpacenearUS> New position from 03OM3BC-11 after 038 hours silence - 12http://tracker.habhub.org/#!qm=All&q=OM3BC-11
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[07:56] <SpacenearUS> New vehicle on the map: 03v1-charly_chase - 12http://tracker.habhub.org/#!qm=All&q=v1-charly_chase
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[08:05] Nick change: number10_ -> number10
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[08:21] <SpacenearUS> New vehicle on the map: 030x06 - 12http://tracker.habhub.org/#!qm=All&q=0x06
[08:24] <thasti> aaand 0x06 is up in the air
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[08:31] <thasti> Dial 434.574 USB, RTTY100 baud, 400hz shift, 7N2
[08:35] <luteijn|1c1pcl> wishing you a good flight ;)
[08:38] <thasti> thanks :) hope all goes well this time
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[08:58] <gonzo_m> anything flying this weekend?
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[09:52] <DL4MDW> DL7AD-11 update: https://kt5tk.wordpress.com/
[09:55] <infaddict> nice that it came back DL4MDW ;-)
[09:56] <DL4MDW> We almost thought it was lost last night.
[09:58] <_charlie> Good job!
[09:59] <_charlie> How much free lift did you give it?
[09:59] <DL4MDW> We keep observing the drop of voltage during the high noon hours. We believe this is because the balloon itself throws its shade on the solar panels. It's more intense the further south you get.
[09:59] <DL4MDW> 3 gramms
[10:00] <DL4MDW> See the video in the previous post in the blog
[10:01] <_charlie> Oh awesome
[10:01] <_charlie> my apologies, I dont normally check videos. Will watch it now. :)
[10:03] <_charlie> Nice one
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[10:30] <tweetBot> @chimpusmaximus: Making progress on fill rig. Filler is 3d printed but also coated in a sealant. #ukhas http://t.co/trkongZD5Q
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[10:42] <michal_f> I wtch sp3osj on the tracker now, and there's a 'hysplit' button. what is it ?
[10:44] <DL4MDW> It will show the predictions based on NOAA's hysplit program
[10:46] <michal_f> it's only available for this particular balloon ?
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[10:47] <DL4MDW> No, several balloons have it. Eslecially floaters. Someone needs to trigger the creation manually.
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[10:48] <SpacenearUS> New vehicle on the map: 03Pandel car _chase - 12http://tracker.habhub.org/#!qm=All&q=Pandel%20car%20_chase
[10:49] <michal_f> good to know, thanks
[10:49] <michal_f> it's passing near me now, and I still have no antenna set up :/
[10:50] <DL4MDW> I wish DL7AD-11 had a camera on board. Flying by Mt. Etna now...
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[11:02] <SpacenearUS> New vehicle on the map: 03Sergio_chase - 12http://tracker.habhub.org/#!qm=All&q=Sergio_chase
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[11:10] <Laurenceb_> dual circumnavigation with a qualatex, mental
[11:12] <Upu> "not for outdoor use"
[11:12] <Laurenceb_> I'm pretty sure I saw some ball lightning last night
[11:12] <Laurenceb_> lol
[11:12] <Laurenceb_> looked orange/red, slightly lower color temperature than a low pressure sodium bulb
[11:12] <Laurenceb_> lasted about 15 seconds
[11:13] <Laurenceb_> I wonder if anyone catalogues sightings
[11:13] <Laurenceb_> http://i.4cdn.org/wsg/1435955115047.webm
[11:15] <SpeedEvil> I've seen ball lightning occasionally. I slowed down.
[11:16] <Geoff-G8DHE-Tab> The lightning was white/blue round us last night! Directly under the path in Verwood. Took out the power for a while as well, suspect a ground current trip as it fo
[11:16] <Geoff-G8DHE-Tab> followed a ground strike around the campsite!
[11:17] <SpeedEvil> I'm glad I have enough UPS to simply unplug my UPSs and ride it out
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[11:18] <_charlie> i didnt see any last night walking home
[11:18] <_charlie> what time did you see it laurence
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[11:23] <Laurenceb_> ~1:15am
[11:23] Nick change: KT5TK1 -> KT5TK
[11:28] <_charlie> I was fast asleep then :P
[11:28] <_charlie> shame :(
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[11:46] <SpacenearUS> New vehicle on the map: 03V1-JOSE_chase - 12http://tracker.habhub.org/#!qm=All&q=V1-JOSE_chase
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[12:14] <Lunar_Lander> hello
[12:15] <thasti> hi!
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[13:37] <Geoff-G8DHE-Tab> !track ps-46
[13:37] <SpacenearUS> 03Geoff-G8DHE-Tab: Here you go - 12http://tracker.habhub.org/#!qm=All&q=ps-46
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[14:06] <tweetBot> @chimpusmaximus: Payload base with antenna fitted and space made for batteries. #ukhas http://t.co/0m2Qa2F7IN
[14:08] <SpacenearUS> New vehicle on the map: 03W5LCY-7 - 12http://tracker.habhub.org/#!qm=All&q=W5LCY-7
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[16:10] <astrobiologist> hello all
[16:10] <astrobiologist> which gps modules and ism transmitter modules are a la mode right now?
[16:12] <Upu> same as ever Ublox and Radiometrix MTX/NTX2B
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[16:14] <astrobiologist> thanks upu
[16:15] <astrobiologist> which ublox iteration are we up to?
[16:16] <Upu> 8 series
[16:18] <astrobiologist> what is the difference between the different radiometrix please?
[16:20] <Upu> NTX2B is more breadboard/vero board friendly
[16:20] <Upu> if you're making your own PCB use the MTX2
[16:20] <Upu> they are both identical internally
[16:20] <Upu> nice and stable
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[16:22] <astrobiologist> and if we order them from you, you can preset the frequency for us, is that correct?
[16:22] <Upu> yes
[16:22] <Upu> on the NTX2B's
[16:27] <astrobiologist> so then, the only thing I would need to configure myself would be to send the relevant serial commands to the ublox8?
[16:27] <Upu> yep
[16:27] <astrobiologist> how hard is that, and are the newbie instructions for the 8 on the wiki somewhere please?
[16:27] <adamgreig> you should have the breakout ubloxes set to airborne mode at startup ;)
[16:28] <Upu> well you need to write your code
[16:28] <adamgreig> it's the same as the 6 and 7 iirc astrobiologist, very easy and plenty of instructions on the wiki
[16:29] <astrobiologist> I was thinking of doing some very basic experiments, probably using picaxes... link the uart line to a ublox and see what happens... maybe bit-bash whatever it hears out on some other pins
[16:32] <mattbrejza> uart is pretty straight forward on the picaxe
[16:33] <adamgreig> it's all software serial :p
[16:33] <mattbrejza> if anything picaxe is better than an arduino as there is no code ready to use, so it forces you to work it out and understand it yourself
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[16:33] <adamgreig> i think maybe new picaxe has a hardware serial command too maybe
[16:33] <adamgreig> "new" probably like 2009
[16:33] <mattbrejza> picaxe does have hardware serial on some of them
[16:33] <adamgreig> well they all do - it's how the bootloader works
[16:33] <adamgreig> just i think they didn't used to have any way for BASIC code to access hardware serial
[16:34] <astrobiologist> I have some x2's I could try
[16:34] <adamgreig> shrug, it's been a while since I've used a picaxe
[16:34] <mattbrejza> there are some, perhaps the new series all have it
[16:34] <mattbrejza> who knows
[16:34] <mattbrejza> thats astrobiologist 's adventure
[16:34] <astrobiologist> will have a play then :-)
[16:34] <adamgreig> i should try some new micros
[16:34] <mattbrejza> msp430?
[16:34] <adamgreig> mm yea maybe that'd be good
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[16:35] <mattbrejza> msp430 are nice that you can just poke registers, unlike arm where its generally not wroth the effort
[16:36] <zyp> mattbrejza, how so?
[16:37] <adamgreig> poking regs on arm is not that bad
[16:37] <mattbrejza> well these days id just use libopencm3 then registers directlyt
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[16:37] <zyp> cortex-m peripherals aren't any more complex than msp430 peripherals
[16:37] <zyp> in general
[16:38] <mattbrejza> i think there is more to stm32 peripherals than msp430 ones
[16:38] <mattbrejza> theres also the advantage that ti provide good register poking examples while all the arm stuff uses st's annyoing peripheral library
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[16:41] <astrobiologist> upu please can I order an ublox8 and ntx2b from u
[16:42] <mattbrejza> http://hab.supplies
[16:42] <mattbrejza> oh doesnt work :(
[16:42] <adamgreig> www.habsupplies.com
[16:47] <astrobiologist> if I order an ntx2b unaltered, is it a big problem to leave it on 434.650?
[16:47] <adamgreig> no
[16:47] <adamgreig> a) your own code can change the frequency later
[16:47] <adamgreig> b) you'd just have to fly on a day when no one else is using 434.650
[16:48] <DL7AD> adamgreig: finding a free frequency is not that easy in the ISM band
[16:48] <astrobiologist> ah I see we can request other frequencies anyway
[16:48] <adamgreig> most days feature 0 HAB launches
[16:48] <adamgreig> so not a huge issue usually
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[16:49] <adamgreig> anything localised is unlikely to affect many receivers anyway
[16:49] <astrobiologist> Hmmm for total newbies then just pick frequency x... then can learn to program it later?
[16:50] <adamgreig> yea
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[16:50] <astrobiologist> do a lot of newbies pile up at 434.650 tho'?
[16:50] <Upu> hmm that redirect should work
[16:50] <adamgreig> not really astrobiologist
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[16:52] <Upu> grrr
[16:52] <Upu> domain is locked but I never got any mails
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[16:58] <astrobiologist> getting a bit wan looking at some of the example code... there any non-C examples for talking to the ublox out there please?
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[17:23] <DL7AD> did anyone ever have problem with gps receiption on evening?
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[17:34] <astrobiologist> upu I have ur personal bank account set up for swift after the time I bought ur 817 off u, last four digits 3894
[17:35] <astrobiologist> but that's different from the nevis computers account no given on ur online shop
[17:35] <astrobiologist> can I still order from ur shop using the...3894 account?
[17:48] thasti_ (uid58261@gateway/web/irccloud.com/x-ocsobrczfodcqkuu) left irc:
[17:48] <astrobiologist> paypal'd to nevis computers in the end instead
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[17:53] <thasti> any more czech, german or austrian receivers for 0x06 online for the coming night?
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[18:13] <Laurenceb_> E50W receiving
[18:13] <Laurenceb_> interesting, they managed to get a signal across the sunrise line
[18:16] <SpacenearUS> New vehicle on the map: 03KJ4TDM-1 - 12http://tracker.habhub.org/#!qm=All&q=KJ4TDM-1
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[18:23] <SpacenearUS> New vehicle on the map: 03N4XWC-1 - 12http://tracker.habhub.org/#!qm=All&q=N4XWC-1
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[18:30] Nick change: fl_0|afk -> fl_0
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[19:30] <qyx_> what is 0x06? any description available?
[19:31] <SA6BSS> http://www.dooce.de/dokuwiki/doku.php?id=projekte:picoflights:start
[19:33] Nick change: fl_0|afk -> fl_0
[19:33] <qyx_> i will try from BA/SK if the direction changes
[19:35] <thasti> qyx_: cool, thanks :) frequency is 434.575 USB, RTTY 100 baud, 400hz shift, 7N2
[19:36] <lz1dev> .dial 0x06
[19:36] <SpacenearUS> 03lz1dev: Latest dials for 030x06 10(90f4): 03434.575 MHz, 434.5 MHz, 0.02 MHz
[19:36] <qyx_> thasti: np, i hope my new amp works as expected
[19:37] <SA6BSS> I´m on web sdr from Nuremberg, let the computer run during night
[19:38] <thasti> SA6BSS: i'm listening there as well, hope to have some good decodes soon
[19:38] <SA6BSS> yep, some qrm right in the passband
[19:39] <thasti> and a bit weak i think
[19:40] <SA6BSS> yes, quite weak, looks as the temeprature drop it separates the signal from qrm a coiple of tent hz
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[19:58] <thasti> qyx_: where are you located?
[20:00] <qyx_> thasti: bratislava
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[20:01] <qyx_> i have 180° view to the north-east
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[20:06] <astrobiologist> evening all
[20:06] <astrobiologist> would anybody be kind enough to entertain an ublox newbie question?
[20:08] <Lunar_Lander> which one?
[20:09] <astrobiologist> 8
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[20:12] <astrobiologist> the main thing I want to know is how exactly the format of the commands works
[20:13] <Lunar_Lander> ah
[20:13] <Lunar_Lander> like the things you can see in the examples?
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[20:16] <astrobiologist2> hello again, my connection dropped out
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[20:17] <astrobiologist2> lunar_lander yes, I'd like to understand the examples plus send some of the other available commands
[20:18] <Lunar_Lander> ah
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[20:21] <astrobiologist2> just seems confusing that some commands like the pubx ones are essentially human-readable as you send them but others are just masses of hex
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[20:52] <Lunar_Lander> yea
[20:52] <Lunar_Lander> what I know is that the beginning of a message is always the same
[20:52] <Lunar_Lander> do you have that receiver description manual?
[20:55] <astrobiologist2> yes, but for example for the command to put it into flight mode, I just can't get the hytes to make sense. the first four are OK, but I have no idea about the rest or what goes where
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[21:06] <Lunar_Lander> ah
[21:06] <Lunar_Lander> one moment
[21:08] Nick change: fl_0 -> fl_0|afk
[21:10] <astrobiologist2> if you look in the manual for the number of bytes used for each parameter, it just doesn't add up. kudos to whoever got that string to work
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[21:19] <Lunar_Lander> hm
[21:21] <fox123> $$$$0x06,1461,212034,+4920.8119,+01323.5913,6312,08,1426,-07*33A3
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[21:22] <Lunar_Lander> interesting
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[21:23] <Lunar_Lander> I also get 38 for the payload of the CFG-NAV5 string, manual says 36
[21:23] <Lunar_Lander> ah wait
[21:23] <Lunar_Lander> two are the length
[21:23] <Lunar_Lander> so 36 is correct
[21:27] <astrobiologist2> which are the length?
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[21:28] <Lunar_Lander> the two bytes after the ID
[21:28] <Lunar_Lander> see page 95 of the receiver description PDF
[21:28] <Lunar_Lander> the first six bytes and the last two are "fixed"
[21:28] <astrobiologist2> I thought that was the mask - and according to the manual this is part of the 36
[21:29] <Lunar_Lander> hm
[21:30] <astrobiologist2> the byte offset in the manual goes from 0 (mask) to 31 (reserved2), which has 5 bytes, so 36 altogether
[21:30] <astrobiologist2> but the string is longer than that
[21:31] <astrobiologist2> first four bytes: 0xb5 0x62 0x06 0x24
[21:32] <astrobiologist2> so that makes sense
[21:32] <astrobiologist2> but the next two should be the mask
[21:32] <astrobiologist2> 0x24 0x00
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[21:33] <astrobiologist2> this is 36 in decimal? makes sense? 36 bytes?
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[21:33] <astrobiologist2> or is that 9216 decimal? (doesn't make sense)
[21:33] Nick change: Miek_ -> Miek
[21:33] <astrobiologist2> The next two bytes are oxff oxff - what's this?
[21:34] <astrobiologist2> the next one is 0x06 - and this is probably the really important one, 6 = airborne mode
[21:35] <astrobiologist2> but the oxff oxff has me totally confused so I don't know which byte corresponds to which
[21:35] <Lunar_Lander> yeah
[21:35] <Lunar_Lander> good question
[21:36] <Lunar_Lander> I don't know a good answer right now
[21:39] <astrobiologist2> pity cos if we could work out why this one is the way it is it would probably let us use any of the other ublox command sets as well
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[21:44] <astrobiologist2> ah hang on: p95
[21:44] <astrobiologist2> so length (2 bytes) is not part of "payload"
[21:45] <astrobiologist2> so, length is 0x24 0x00, or 36 decimal - so a 36 byte payload
[21:45] <astrobiologist2> first two bytes of payload is mask - set to 0xff 0xff
[21:45] <astrobiologist2> so all 36 bytes are valid in the mask
[21:46] <Lunar_Lander> yea
[21:46] <astrobiologist2> basically they have set everything in the mask as live
[21:47] <fox123> $$$0x06,1509,214624,+4916.3267,+01325.3656,6332,08,1426,-07*17B1
[21:48] <astrobiologist2> next question: why did they set the other parameters to the settings used
[21:48] <astrobiologist2> but at least now I can stop bothering everybody for a bit and go through them one by one ;-)
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[21:52] <Lunar_Lander> yea
[21:53] <Lunar_Lander> can you ask your second question once more please?
[21:53] <Lunar_Lander> i.e. rephrase
[21:54] <Lunar_Lander> brb
[21:54] <astrobiologist2> still a bit confused though as to whether the checksum is part of payload or not
[21:54] <astrobiologist2> The flight mode string we all use is 42 bytes long
[21:55] <astrobiologist2> 4 bytes ID... 2 bytes payload length... that's 6
[21:55] <astrobiologist2> 42 - 6 is 36
[21:55] <astrobiologist2> but according to p95, the two checksum bytes are on top of the payload of 36 bytes
[21:56] <astrobiologist2> so there should be 38 bytes left not 36? I.e 44 in total?
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[22:00] <Lunar_Lander> no, no payload
[22:00] <Lunar_Lander> the graphic that shows the segment of the string shows that CK_A and CK_B are extra
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[22:02] <astrobiologist2> so, it should be 6 + 36 + 2 = 44 bytes in total then
[22:02] <astrobiologist2> but it's only 42...
[22:02] <Lunar_Lander> hm
[22:03] <astrobiologist2> I assume you have to set the checksum?
[22:03] <Lunar_Lander> I think the checksum comes from the GPS
[22:03] <Lunar_Lander> and then you can check it on the micro
[22:06] <mattbrejza> the checksum is generated by whichever device is sending the particular string
[22:07] <astrobiologist2> so the ublox adds the two checksum bytes all by itself?
[22:07] <mattbrejza> well when you send commands to the ublox you add the checksum omn that command, then the ublox will add its own checksum to the response it sends back
[22:08] <astrobiologist2> Hmmm then the flightmode command is still two bytes short
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[22:09] <mattbrejza> do you have the two start charaters_
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[22:17] <astrobiologist2> heh, it was a "feature" not a "bug"
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[22:18] <astrobiologist2> turns out my browser window was clipping the last two bytes off the right side of the screen
[22:18] <astrobiologist2> so there are 44 bytes really!
[22:18] <astrobiologist2> sorry :-)
[22:18] <mattbrejza> lol typical
[22:19] <SA6BSS> predictions of 0x06 http://ready.arl.noaa.gov/hypubout/117896_trj001.gif
[22:20] <SA6BSS> http://predict.habhub.org/#!/uuid=6cdff82614e6a5323d21d54b4ac775cb3acfd86c
[22:21] <mattbrejza> !track ps'46
[22:21] <SpacenearUS> 03mattbrejza: Here you go - 12http://tracker.habhub.org/#!qm=All&q=ps'46
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[22:25] <thasti__> qyx_: any signs of 0x06 yet?
[22:30] <Lunar_Lander> congrats to england for 3rd place in women's world cup
[22:30] <Lunar_Lander> :)
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[22:35] <Laurenceb_> PS-46 in New Caledonia
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[22:45] <Laurenceb_> rofl https://en.wikipedia.org/wiki/Woodward_effect#Media_reaction
[22:46] <Laurenceb_> Woodward also gave a video interview[79] for the TV show Ancient Aliens
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[22:50] <_charlie> "However doubters do exist" ~ as if the doubters are somehow the mad ones ;)
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[23:03] <Laurenceb_> interesting http://www.hydrogenresearch.org/WHEC15/H2%20Storage%20Using%20LiBH4.pdf
[23:03] <Laurenceb_> I wonder if some of that on a resistor would work for envelope repressurisation on long duration floaters
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[23:05] <Laurenceb_> erm that water decomposition
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[23:09] <Laurenceb_> this http://pubs.acs.org/doi/abs/10.1021/ic50025a009
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[23:14] Action: Laurenceb_ just had a mental idea
[23:15] <Laurenceb_> proton exchange membrane to use a picoballoon for hydrogen storage
[23:15] <Laurenceb_> for powering the payload
[23:16] <_charlie> sounds real easy
[23:17] <astrobiologist2> k
[23:17] <_charlie> is looking forward to the implementation
[23:17] <astrobiologist2> I had thought of something similar using those powercells you can buy now
[23:18] <astrobiologist2> But if atmospheric O2 is say 1% of ground level then the power output would presumably be 1% too?
[23:18] <Laurenceb_> maybe...
[23:18] <Laurenceb_> I suspect one of the biggest issues with going to be temperature effects on the PEM
[23:19] <Laurenceb_> there is a reason they are usually run at high temperature
[23:21] <Laurenceb_> fuel cell design is very complex.. so many reactions :-/
[23:21] <Laurenceb_> have to work out how everything scales with partial pressures and temperatures
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[23:27] <SpacenearUS> New position from 03SP3OSJ-12 after 0316 hours silence - 12http://tracker.habhub.org/#!qm=All&q=SP3OSJ-12
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[23:33] <SpacenearUS> New vehicle on the map: 03F5KAV-11 - 12http://tracker.habhub.org/#!qm=All&q=F5KAV-11
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[00:00] --- Sun Jul 5 2015