highaltitude.log.20150204

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[00:55] <deki_> does anyone know if you can use an oxygen regulator with a helium tank?
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[01:07] <deki__> Just had a question about regulators
[01:07] <deki__> can you use an oxygen regulator for a helium tank?
[01:08] <zyp> try asking again when people is awake
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[01:14] <deki__> I'm awake :p
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[06:08] <SpacenearUS> New vehicle on the map: 03AETH49-4 - 12http://tracker.habhub.org/#!qm=All&q=AETH49-4
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[06:32] <SpacenearUS> New vehicle on the map: 03AETH30-2 - 12http://tracker.habhub.org/#!qm=All&q=AETH30-2
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[06:54] <SpacenearUS> New vehicle on the map: 03AETH30-1 - 12http://tracker.habhub.org/#!qm=All&q=AETH30-1
[06:55] <Reb-SM0ULC> balloon bonanza
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[09:19] <SpacenearUS> New vehicle on the map: 03BALYOLO - 12http://tracker.habhub.org/#!qm=All&q=BALYOLO
[09:32] Nick change: day- -> day
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[11:23] <Geoff-G8DHE> ping daveake
[11:24] <daveake> pong
[11:26] <Geoff-G8DHE> just noticed that tweet about the wiringPi
[11:26] <daveake> ah yes
[11:26] <Geoff-G8DHE> last night I fired up the lora board and it failed to find the SPI device ...
[11:26] <Geoff-G8DHE> now I have been playing about with the RPi but slightly suprised
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[11:26] <daveake> Which Pi board and what O/S ?
[11:27] <Geoff-G8DHE> is it likely to be that that is the cause its B+ version 1
[11:27] <Geoff-G8DHE> Raspbian
[11:27] <daveake> Raspbian 30th Jan version ?
[11:28] <Geoff-G8DHE> I had upgraded the system yesterday I guess so installed it Monday this week
[11:28] <daveake> OK go into raspi-config, advanced --> disable devtree
[11:28] <daveake> reboot and try again
[11:28] <daveake> Other possibility is that the LoRa SPI/DIO settings are wrong
[11:29] <daveake> UpuWork keeps changing the connections on his boards and I can't keep up :p
[11:29] <Geoff-G8DHE> OK well I had been playing so this morning I just decided to reinstall from scratch so will try that in a few minutes!
[11:29] <daveake> Is it the LoRa board with big "1" and "2" labels ?
[11:29] <Geoff-G8DHE> Yes
[11:29] <UpuWork> same board as yours
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[11:29] <UpuWork> I've not submitted the new one to the fab yet
[11:29] <daveake> Yeah I have 2 types
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[11:29] <Geoff-G8DHE> Yes it was working, which is what made me suspcious that it was something I had played with!
[11:30] <daveake> Ah OK
[11:30] <daveake> For reference (spammy):
[11:30] <daveake> First module (closest to pin header):
[11:30] <daveake> Labelled "1"
[11:30] <daveake> CE0
[11:30] <daveake> DIO0 = 6
[11:30] <daveake> DIO5 = 5
[11:30] <Geoff-G8DHE> but then last night decided to fire it up and it bombed out
[11:30] <daveake> Yeah it'll be devtree
[11:30] <daveake> disable and reboot
[11:30] <Geoff-G8DHE> OK well I'll get this lot re-installed then play with the devtree
[11:31] <daveake> Sometime soon I'll figure out how to set it up with devtree enabled
[11:31] <daveake> That broke a lot of things
[11:32] <Geoff-G8DHE> Does this sort of thing happen often ? Just wondering as being totally new to the board !
[11:33] <Geoff-G8DHE> I'll keep a closer eye on the tweets!
[11:33] <daveake> No, devtree is old it's just that it's only just made it into raspbian
[11:33] <Geoff-G8DHE> I assume devtree is Device Tree ?
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[11:49] <Vaizki> oh the joys of device tree and its overlays
[11:50] <Vaizki> been soaked in it with BBB :)
[12:00] <Geoff-G8DHE> Ah yes! The joys of new systems, that's cured the bugger!
[12:01] <Geoff-G8DHE> Right now to put back in the rest of the stuff I've been playing with :-(
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[12:11] <Vaizki> device tree is the solution they came up with to the horrid mess of linux kernels for ARM devices and Torvalds' famous "get your act together" email
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[12:12] <Vaizki> anyway, with x86 kernels something like device tree is not needed because all peripherals are discoverable with the help of ACPI, BIOS, UEFI, PCI-e, USB etc etc you name it
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[12:13] <Vaizki> but with the reconfigurable pins of embedded cpus and SoCs + non-dynamic nature of i2c, spi etc they needed device tree
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[12:13] <Vaizki> I just wish they didn't invent a new language for it and would have documented it better...
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[12:37] <LunarWork> hello
[12:38] <daveake> Hello Lunar
[12:38] <daveake> Flying soon? I think you mentioned January before
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[12:39] <fsphil> 2016
[12:40] Action: fsphil can't make fun of people who don't launch often...
[12:40] <fsphil> over a year since my last
[12:41] <mattbrejza> unless you say youve retired
[12:42] <LazyL-M0LEP> ;)
[12:43] Nick change: LazyL-M0LEP -> LazyLeopard
[12:43] <LazyLeopard> Hmmm... Something must've bounced...
[12:43] <fsphil> still got a box of ntx2's
[12:43] <fsphil> and FSA03 gps modules
[12:43] <LazyLeopard> The old ones...
[12:44] <daveake> I still have some Lassens
[12:44] <LunarWork> dave, yes, thanks for reminding me
[12:45] <LunarWork> unfortunately still some testing remaining
[12:45] <daveake> No problem; best to wait till you're ready
[12:45] <LunarWork> also have to find out if that new german regulation is in lower saxony as well
[12:46] <Vaizki> why not call the regional air traffic control and ask for a launch window?
[12:47] <Vaizki> they will probably tell you if you need to talk to anyone else first...
[12:47] <LunarWork> you're right
[12:47] <LunarWork> I'll do that
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[13:34] <lz1dev> !hysplit add AETH*
[13:34] <SpacenearUS> 03lz1dev: Added 03AETH* to defaults
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[13:34] <lz1dev> !hysplit rerun
[13:34] <SpacenearUS> 03lz1dev: Running HYSPLIT jobs for all defaults. Hold on to your hats
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[13:38] <Babs____> Ping UpuWork
[13:38] <UpuWork> hi Babs____
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[13:39] <Babs____> Hey Anthony - the smaller radiometrix unit - is the following correct? I have the data sheet but just wanted to double check
[13:40] <UpuWork> shoot
[13:40] <Babs____> Through hole rather than SMD , selection of one of the 4 relevant frequencies done by setting p0 and p1 to high/not connecting as appropriate, programming not really necessary
[13:41] <Babs____> ?
[13:41] <UpuWork> yeah you can use that but just program it via serial on the EN pin
[13:42] <Babs____> Does the programming survive power down?
[13:42] <UpuWork> there is a commend to write it to the eeprom
[13:42] <Babs____> In other words I can program it and then just use it like the more regular NTX2B
[13:42] <UpuWork> yep
[13:42] <UpuWork> you can
[13:42] <Babs____> Program it once and write to the eeprom yes, and then just install it
[13:42] <UpuWork> it is just an NTX2 in fairness
[13:43] <Babs____> Great thanks - understood
[13:43] <infaddict> Babs, if its the NTX2-FA then I've just done exactly that using the wrXX command
[13:44] <infaddict> chXX is temporary selection of channel (lost on power down) whereas wrXX is perm written to EEPROM
[13:44] <Babs____> Yes, will probably just decide on which channel from the outset and construct the pcb on that basis
[13:44] <Babs____> Great thanks
[13:45] <infaddict> np, there is sample code available but its just writing to serial
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[13:50] Nick change: priyesh_ -> priyesh
[13:52] <edmoore> write once, brick forever
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[14:09] <infaddict> you had problems writing to the nxt edmoore?
[14:11] <edmoore> no
[14:11] <edmoore> i was just being unhelpful in an absent minded way
[14:12] <infaddict> ;-)
[14:12] <edmoore> i have yet to get myself into a tangle with serial communications
[14:12] <edmoore> but it may happen one day
[14:12] <infaddict> mmm my design so far includes serial, SPI and I2C so tangling is gonna happen at somepoint
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[14:13] <daveake> I doubt it
[14:14] <infaddict> you havent seen my code yet dave haha
[14:14] <edmoore> sounds all nicely distrubuted
[14:14] <infaddict> yer trying to use right tool for right job where i can. SPI for SD card logging. I2C for GPS etc.
[14:14] <daveake> If you do have problems as you add more things, check ram usage as that's much more likely the issue
[14:15] <edmoore> yes, with AVRs, because of their smelly architecture you have to do some funny compiler directives to put stuff in flash
[14:15] <edmoore> but, basically
[14:15] <edmoore> put stuff in flash
[14:15] <edmoore> easy ram saving if things get tight
[14:15] <edmoore> so strings and stuff by default are loaded into ram
[14:15] <infaddict> aha interesting. will google how to do that. my plan is to write each area separately first then slowly add them together whilst testing for issues.
[14:15] <daveake> Also take care on choice of SD card library (assuming you use a library)
[14:15] <edmoore> and lookup tables and so on
[14:16] <edmoore> PROGMEM is the thing to google for
[14:16] <daveake> Most use a lot of ram
[14:16] <edmoore> don't worry about it till you need it
[14:16] <daveake> And avoid software serial
[14:16] <edmoore> sd card libraries don't really use that much ram?
[14:16] <edmoore> it's the filesystems that do
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[14:16] <infaddict> ok thx. i found a version of the SD arduino library that removed buffers allegedly making it faster and use less memory.
[14:16] <daveake> Correct that is what I meant; sloppy I know
[14:16] <edmoore> unless they're saving up big buffers to write fill pages in one, i guess
[14:17] <infaddict> yep i think the factory SD lib is bufferred
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[14:32] Nick change: mfa298_ -> mfa298
[14:41] <Flerb> Hi.
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[14:43] <Ian_> Ho
[14:43] <infaddict> Hey
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[14:46] <Flerb> Ian_: what did you call me?
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[15:07] <Flerb> ugh
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[15:07] <Flerb> Parents evening tonight :( no time to workon the arduino
[15:21] <amell> watching rocket comedy in cheshire
[15:21] <amell> edmoore: remember starchaser?
[15:22] <amell> http://www.bbc.co.uk/news/uk-england-31126820
[15:23] <infaddict> lol reached all of 30ft
[15:23] <theRealSIbot1> In real units: 30 ft = 9.14 m
[15:23] <amell> looking at this and other videos. my guess is that the nozzle blew out.
[15:24] <Flerb> I was thinking about data structures for the arduino sensor project
[15:24] <lz1dev> amell: why is that news tho?
[15:24] <Flerb> and i realised it might be a quite important consideration
[15:24] <Flerb> I mean I would use json
[15:24] <Flerb> But try getting that in 32 bytes
[15:25] <amell> lz1dev: its of interest to some people here.
[15:25] <Flerb> I guess it's preferrable to transmit just enough data, but I don't quite know how to break it up
[15:25] <mattbrejza> thats not criteria for it being news
[15:25] <mattbrejza> Flerb: what are you transmitting?
[15:25] <amell> i believe it was considered news cos it happened in front of 200 schoolchildren.
[15:28] <Flerb> mattbrejza: temperature sensor data, voltage sensor data and current sensor data. oh and soil moisture data and possibly eventually the state of a valve
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[15:30] <mattbrejza> could use msgpack
[15:30] <mattbrejza> its basically binary json
[15:30] <mattbrejza> so smaller json
[15:31] <mattbrejza> and instead of "tempearture":23.4 you could have a series of ids rather than "temperature"
[15:32] <adamgreig> +1 msgpack
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[15:46] <Flerb> msgpack. ill y
[15:46] <Flerb> take a look
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[15:52] Action: amell looks at daveake
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[15:54] <amell> what does this lost payload look like?
[15:57] <Ian_> Flerb, no, you said Hi, to I said ho in the hope of "Hi, Ho, Hey, Ho, back to work we go . . . " Enjoy your parent;s evening though. "Yes, Flerb is really clever, stands out at the top of his class, is highly disruptive often outshining his teachers . . . " That would make your day eh?
[15:58] <Ian_> *so
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[16:15] <daveake> Not mine amell
[16:15] <daveake> I don't lose payloads on land :)
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[16:26] <fsphil> I have twice now. England and Belarus
[16:27] <daveake> Ah, I was forgetting the floaters
[16:27] <fsphil> yea you landed in possibly-france
[16:27] <daveake> In that case, last-seen-over Switzerland going into France
[16:27] <daveake> and the Ukraine
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[16:43] <edmoore> RS Delivers!
[16:43] <edmoore> ... all but one of the LED indicators i ordered from them https://www.dropbox.com/s/yjwtxivz2h4t0wn/2015-02-04%2016.41.24.jpg?dl=0
[16:43] <edmoore> so much for finishing off a job
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[17:03] <Vaizki> using Eagle for the first time to do anything.. this is like digging a ditch when you don't know how
[17:05] <edmoore> yep
[17:05] <edmoore> but it comes
[17:05] <edmoore> just keep digging
[17:05] <edmoore> for once, the best advice
[17:06] <Vaizki> how do I move a group of components :P
[17:06] <Vaizki> that escapes me
[17:07] <edmoore> the dotted square tool top left 3 down
[17:07] <edmoore> drag it out to select a group of components
[17:07] <edmoore> the group will highlight, yes?
[17:08] <edmoore> then click the move tool, top-left tile next to the two stick-men
[17:08] <Vaizki> ok.. and grab where?
[17:08] <edmoore> right click somewhere within the group, and near the bottom will be 'Move:group'
[17:08] <edmoore> click on that
[17:08] <edmoore> voila
[17:08] <Vaizki> (thank you)^2
[17:09] <edmoore> i have all these mapped to keyboard shortcuts to preserve my sanity
[17:09] <edmoore> but wiat till you're happy with the ui before customizing
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[17:12] <Vaizki> and how do I label a loose end so it attaches to all the same loose ends? :)
[17:13] <Vaizki> that's my #2 argh, I think the rest is just my lack of style
[17:13] <edmoore> label
[17:13] <edmoore> see towards the bottom of the tiles
[17:13] <edmoore> ABC
[17:13] <edmoore> over a green wire
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[17:13] <edmoore> click on that, then select the net you want to label
[17:13] <edmoore> if it doesn't yet have a name the label will probably show an auto-generated one like N$37
[17:14] <edmoore> but to label it, hit 'name'
[17:14] <edmoore> which is the left resistor halfway down the tiles with the R2 (rather than the 10k) highlighted
[17:14] <edmoore> then click on the net in question
[17:14] <edmoore> voila
[17:16] <Vaizki> ok I have to try that...
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[18:03] Nick change: BrainDamage_ -> BrainDamage
[18:03] <SpacenearUS> New vehicle on the map: 03LORA1 - 12http://tracker.habhub.org/#!qm=All&q=LORA1
[18:04] <lz1dev> !hysplit
[18:04] <SpacenearUS> 03lz1dev: HYSPLIT available for: 03AETH30-1, AETH30-2, AETH49-4, AF5LI-11, ATSAT-2
[18:04] <Laurenceb> how can i export packets from ucenter?
[18:04] <lz1dev> !hysplit aeth30-1
[18:04] <SpacenearUS> 03lz1dev: HYSPLIT for 03AETH30-1 - 12http://spacenear.us/tracker/hysplit_cache/150204-16_197600_AETH301.gif
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[18:07] <Vaizki> I think this first eagle experiment will be a disaster :)
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[19:08] <anerdev> hi guys :))
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[19:38] <anerdev> upu there is ? :)
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[20:08] <Upu> I am
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[20:11] <Vaizki> whee eagle learning fail.. I used wires, not nets
[20:11] <Vaizki> oh well.. redo!
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[20:18] <stratoschem> Hi! I would like to ask you, how big is the diameter for the Hwoyee 1600 balloon filled with helium?
[20:19] <Upu> on the ground ?
[20:19] <Upu> ~1-2 meter
[20:19] <Upu> at altitude 10m
[20:20] <stratoschem> But if the altitude is about 33 500 m?
[20:20] <Upu> somewhere between 2-10 meters :)
[20:21] <daveake> Depends on how much gas you put in it
[20:21] <daveake> What do you need to know for ?
[20:22] <Flerb> I was looking at msgpack, and noticed the one arduino port of it is quite poorly documented.
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[20:22] <Upu> Dover
[20:22] <Upu> you don't use my servers for anything these days do you ?
[20:23] <Flerb> Don't believe so Stark
[20:23] <Flerb> Why?
[20:23] <Upu> Stirk
[20:24] <Upu> I deleted it from our servers today
[20:24] <Upu> just wanted to be sure
[20:24] <Flerb> ah ok
[20:24] <Flerb> I switched to hosting my own email when I got bored.
[20:24] <Upu> nps
[20:24] <Flerb> Thanks for it though.
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[20:24] <Flerb> Wait
[20:25] <michemto> Anyone could please explain me what is Train equivalent sphere diameter
[20:25] <Flerb> Is arduino language a subset of C?
[20:25] <Flerb> or a superset
[20:25] <Ian_> Sub set.
[20:25] <Flerb> does it have all the C default libraries?
[20:25] <Ian_> Corruption
[20:25] <Ian_> Doesn't support ALL the C features
[20:26] <Flerb> Oh - was just looking into msgpack
[20:27] <Ian_> Train equivalent sphere diameter - guess - 1m diameter balloon, 10m train, equivalent sphere diameter 11m -
[20:27] <Ian_> I could be wrong of course.
[20:27] <daveake> http://en.wikipedia.org/wiki/Equivalent_spherical_diameter helpful ?
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[20:29] <Ian_> Helpful daveake
[20:30] <mfa298> Flerb: also arduino has bits of C++ (Object Oriented)
[20:30] <mfa298> I assume mostly as they think that makes things easier for beginners (I'm not sure that's actually true)
[20:31] <Flerb> looking at msgpack, it doesn't seem it would make it that much smaller
[20:31] <Flerb> i mean there's not much wrong with inventing my own data structure
[20:31] <Flerb> it would just take a while
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[20:33] <mfa298> the benefit of using something already out there is that others might do the same and generally greater minds than the rest of us thought them up.
[20:33] <SpacenearUS> New vehicle on the map: 03M0UPU-Chase - 12http://tracker.habhub.org/#!qm=All&q=M0UPU-Chase
[20:33] <Flerb> mfa298: tbh I may as well use json
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[20:33] <Flerb> it's not exactly data efficient
[20:34] <Ian_> No point in reinventing the wheel and finding that you have to knock the corners off to make it run smoothly
[20:34] <mfa298> remember you don't have much ram on an avr. So data efficiency might be a key requirement
[20:34] <Flerb> in that its a bit wasteful, because i could just agree with each board
[20:34] <Flerb> where everything would be
[20:35] <Flerb> the radio transmits in 32 byte packets
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[20:35] <Flerb> but if i split various fields across multiple packets it might work
[20:35] <Flerb> i could try it asynchronously.
[20:35] <Ian_> Is the problem you are trying to solve for that you have a number of sensors that might strain the size of the packet?
[20:35] <Flerb> Yes.
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[20:36] <Vaizki> ok so complete PCB and RF noob here.. playing with Eagle.. bear with me.. do I need a separate ground and rf ground?
[20:36] <Vaizki> or can I just use one GND for everything
[20:36] <Ian_> I will be reporting between five and ten DS18B20 temp sensors, so will split them into two messages - should this be on #ukhasnet ?
[20:37] <Flerb> I mean if I only need to be transmitting for a <0.5s window then to save power then one could turn off
[20:37] <Flerb> when it doesn't need to receive
[20:37] <Flerb> One of them is running off a batter and so has to be quite efficient power-wise
[20:39] <Ian_> With good timing, you could set your listening watch for ten seconds each minute, for example to catch the packets that might also be operating on that schedule.
[20:39] <mfa298> Flerb: you should probably look at what some people have been doing with ukhasnet stuff, especially some of craag's low power nodes and possibly some of the ethernet/wireless nodes
[20:39] <Ian_> Exactly
[20:39] <Ian_> QSY #ukhasnet
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[20:41] <Flerb> QSL QSL QSY #UKHASNET 2E0PGP GOING QRT THX
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[20:43] <Babs_> evening - can anyone recommend a logic level SMD mosfet outputting 3.3V?
[20:44] <Geoff-G8DHE> Babs_, Did you get your files the other day OK ?
[20:45] <Babs_> hey Geoff- yes, gret help thankyou
[20:45] <Babs_> have found someone to print out to 1.5m by 60cm
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[20:45] <Babs_> *great
[20:45] <Geoff-G8DHE> OK, no problem I'll zap the account that's all!
[20:45] <Babs_> cool no worries
[20:46] <Geoff-G8DHE> The datas still there just the FTP acct closed
[20:46] <Babs_> ok thanks
[20:55] <anerdev> hey upu, I have a question :)
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[20:56] <Ian_> Good for you, Upu probably gazing at a crystal ball - best you ask your question !
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[20:57] <anerdev> sorry Ian_
[20:58] <Upu> ask away I'm sure others can answer troo
[20:58] <Upu> too
[20:59] <anerdev> so, the question is: from the NTX2 to stylo antenna, how long can is the cable ? For example 20 cm is good or there is a specify length ?
[20:59] <Upu> the feed to the antenna should be as short as possible
[21:00] <anerdev> and the stylo antenna, need to put vertical (with peak that view earth) or horizontal ?
[21:00] <Upu> stylo ?
[21:00] <anerdev> 15 cm maximum is good ?
[21:00] <Upu> vertical
[21:00] <anerdev> yes, styli
[21:00] <mfa298> that may also depend on what cable you're using, but 20cm of most types of coax should be ok.
[21:01] <anerdev> mfa298 the cable is
[21:02] <anerdev> I don't have there, is in the laboratory .. but is the classical coaxial cable with bnc connector for radio
[21:02] <Ian_> Two reasons to keep the cable short on a HAB. 1. losses (not that you are likely to use enough cable for them to become significant) 2. you have to put the excess cable somewhere
[21:02] <anerdev> Upu vertical with the peak down or up ?
[21:03] <Upu> down I think if I understand the question
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[21:04] <mfa298> this sounds like a question that could really do with a picture.
[21:05] <anerdev> Upu like this: http://imgur.com/n3DqliF
[21:05] <anerdev> Ian_ excess cable in what sense ?
[21:06] <Upu> lol
[21:06] <Upu> yes
[21:06] <mfa298> pointing down it probably the right answer
[21:06] <Ian_> If you use a long bit of cable on a HAB, then you have to store any excess length as by definition the antenna is going to be attached to the package
[21:06] <anerdev> perfect guys :)) thank you for this ! I will put down
[21:07] <mfa298> although I might question how good that antenna will be, e.g. does it need radials, does it rely on what it's connected to to provide the counterpoise (which your payload probably wont do.)
[21:07] <anerdev> Ian_ agh kook understand ... But I will use maximum 20 cm of cable
[21:07] <Ian_> The antenna you have drawn suggests a helically wound antenna commonly referred to in the UK as a Rubber Duck
[21:07] Action: mfa298 realises he shouldn't have been answering this - or should change his name to Upu2
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[21:08] <Upu> be my guest mfa298 :)
[21:08] <anerdev> Ian_ exact, is like this: http://upload.wikimedia.org/wikipedia/commons/4/46/RDuckyAntenna.jpg
[21:08] <Ian_> It is relatively heavy. A better bet is possibly to make a quarter wave ground plane from guitar string.
[21:08] <mfa298> anerdev: be aware that those antennas often rely on the radio body and person holding it to work properly - neither of which will happen on a balloon
[21:08] <anerdev> can't connect directly the ntx2 to this antenna ? I
[21:09] Nick change: nigelvh -> xXxNiGeLvHxXx
[21:09] <anerdev> mfa298 oh, is a problem this !! I'm searching the quarter wave ground plane tutorial
[21:10] <infaddict> http://ukhas.org.uk/guides:payload_antenna?s[]=plane
[21:10] <anerdev> like this ? http://ukhas.org.uk/guides:payload_antenna
[21:10] <infaddict> ;-)
[21:10] <Ian_> You would have difficulty thinking of the physical make up of both. A 20cm length of RG174 - would be suitable.
[21:12] <anerdev> oh perfect ! I will make this antenna tomorrow ... I think that is simple
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[21:12] <Ian_> I have used http://www.soundsliveshop.com/p/Ernie_Ball_1013_0.13_6-Electric_Acoustic_String_Pack/EB-1013?CAWELAID=1830890099&CAGPSPN=pla&gclid=CjwKEAiAo8emBRCX_OqU4qek6y8SJACzgf8fppDm4XSFE2NTf1fje0oAlhdBDlV1bNcb0NpuCgmLUBoCfADw_wcB
[21:13] <infaddict> lol i play guitar and have a ton of strings lying around
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[21:13] <infaddict> are they thick enough for ground plane?
[21:13] <Ian_> to make a pile of quarter wave ground plane antennas - solid strings of course
[21:13] <infaddict> yep so they are solid (not wound or a mix)
[21:14] <anerdev> Ian_ the string are good for the cross ?
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[21:15] <Ian_> I use a filament of wire to bind the two ground plane radials in the centre and then open them out to a cross and solder. The vertical I place carefully NEAR the centre. And connect it to your coaxial cable.
[21:16] <Ian_> As the length of your feeder is likely to be less than one quarter wave length long then it's not going to be much of a transmission line anyhow and I have used hookup wire twisted for a cheapo feeder.
[21:16] <anerdev> with full metal string ?
[21:16] <anerdev> have you a photos ?
[21:17] <Ian_> SOLID The diameter of the radials is x2 the height of the radiating element
[21:17] <Ian_> No photo, but will get one.
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[21:20] <anerdev> I'm making a scheme :))
[21:20] Nick change: xXxNiGeLvHxXx -> nigelvh
[21:20] <Laurenceb__> is the ublox MAX8 antenna output enabled by default?
[21:23] <Upu> power ?
[21:24] <Upu> for active yes
[21:24] <Laurenceb__> yeah the power
[21:24] <Laurenceb__> ok cool
[21:25] <Laurenceb__> hopefully I should be launching sometime soon
[21:25] <anerdev> Ian_ this is ok ? http://imgur.com/bBAudMP
[21:25] <Laurenceb__> experimental narrowband uplink HAB
[21:28] <Reb-SM0ULC> Laurenceb__: how wide is narrow?
[21:29] <Ian_> Yes. anerdev, The radials can be reduced to 2 x 164mm. The string is strong enough to support itself. SMA connectors are better, but if I use twisted pair then I don't use connectors.
[21:29] <Laurenceb__> <Reb-SM0ULC> 300hz
[21:30] <Geoff-G8DHE> If you reduce the radials down to two then there will be more flutter on the signal as the aerial spins
[21:31] <anerdev> radial total 328 mm. For the string, if I use a copper of wire like telephone, are good ? I don't use twisted pair, but coaxial. I can connect the coaxial cable directly on the NTX2
[21:40] <anerdev> Ian_
[21:41] <Ian_> Yes, sorry, just got a couple of pictures that I need to move to show you
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[21:42] <anerdev> perfect, thank you =D
[21:50] <anerdev> any one can send to me a rtty audio sample ? For use in the dl-fldigi
[21:50] <anerdev> thank you guys
[21:51] <mfa298> there's a rtty sample on the wiki
[21:51] <mfa298> !wiki icarus
[21:51] <SpacenearUS> 03mfa298: Wiki page 03icarus (projects) - 12http://ukhas.org.uk/projects:icarus
[21:51] <mfa298> probably not that page
[21:52] <Ian_> http://imgur.com/UoZGhe3
[21:52] <anerdev> mfa298 there isn't ://
[21:53] <mfa298> anerdev: http://ukhas.org.uk/guides:tracking_guide?s%5B%5D=icarus#background
[21:53] <Ian_> http://imgur.com/otIFo7g
[21:53] <anerdev> Ian_ thank you ! So, the red is GND and blue is signal ? You connect the twisted directly to NTX2 ?
[21:54] <anerdev> thank you mfa298
[21:55] <Ian_> Black is ground, connected to centre of the cruciform and red (with yellow sleeve) is signal to radiator.
[21:56] <Ian_> Not perfect, but lightweight and better than nothing if no connectors are available. I use it on throwaway beacons for team training - much needed :)
[21:57] <Ian_> I put a blob of epoxy adhesive to hold the antenna together properly.
[21:57] <anerdev> thank you ! Tomorrow i will make
[21:58] <anerdev> so, the radial total length is 328 mm and the signal "string" is 164 mm ? Correct ?
[21:58] <Ian_> The guitar strings are nice and cheap coming as a pack of 6. Everyone in a team can make one. . . 164mm yes
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[21:59] <Laurenceb_> stm32
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[22:00] <Ian_> If you are making with coax, then compare as best you can and then decide. Coax is better for screening from your electronics, but is both cheap and light, so has to be considered if only in a pinch.
[22:01] <anerdev> perfect ! Thank you
[22:01] <anerdev> now I'm testing fl-dlfigi
[22:02] <anerdev> I'm setting the RTTY and testing the sample audio
[22:02] <SpacenearUS> New vehicle on the map: 03PROJECT1 - 12http://tracker.habhub.org/#!qm=All&q=PROJECT1
[22:03] <anerdev> there is a problem with conversion of audio ;://
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[22:04] <Ian_> How so?
[22:05] <anerdev> watch there
[22:06] <anerdev> There isn't write what type of rtty is
[22:06] <anerdev> found ! lol
[22:07] <Ian_> Ah. 50 baud guess the rest . . . :) 7n2?
[22:08] <anerdev> Ian_ http://cl.ly/image/282m1o1C0B3T
[22:08] <anerdev> one moment
[22:08] <anerdev> WORK !
[22:09] <anerdev> http://cl.ly/image/2L1L220q0S0m
[22:09] <anerdev> Can I test online ? Or is a problem ?
[22:11] <Ian_> Do you mean can you echo that message to Habitat?
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[22:12] <anerdev> sorry Ian_, kernel panic in my mac with google earth :(
[22:12] <anerdev> can you repeat ?
[22:13] <Ian_> Dontcha just love kernel panics. In Linux Google earth might just crash but not a kernel panic
[22:13] <Ian_> Do you mean, can you echo the message via dl-fldigi to Habitat?
[22:13] <anerdev> no no
[22:13] <Ian_> OK
[22:13] <anerdev> the words that have you writes in the last 2 minutes (when I went offline=
[22:13] <Ian_> Happy?
[22:15] <anerdev> maybe
[22:15] <anerdev> no :(
[22:15] <anerdev> one moment, I'm reopen all app -___-
[22:16] <Ian_> I'm listening
[22:17] <anerdev> ok
[22:17] <anerdev> so, now work
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[22:17] <anerdev> now I need to create a data from habhub tracker
[22:17] <anerdev> I'm searching the tutorial
[22:19] <Ian_> Data points plotting rude words on the map . . . tsk tsk!
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[22:21] <anerdev> Ian_ I'm not understanding how connect my dl-fldigi to hahub tracker
[22:22] <Ian_> You are generating a signal on your tracker (Arduino) and transmitting via NTX2B ?
[22:23] <anerdev> nope, I'm using the icarus sample sound to configure and understand the software configuration
[22:23] <anerdev> can I do ? Or is a problem ?
[22:24] <Ian_> OK, The recommendation is to not use the Icarus sample to push to Habitat. It will need someone else to assist you from here.
[22:24] <Ian_> Help anyone?
[22:25] <Ian_> You have a working tracker?
[22:25] <anerdev> ok ok, no problem ! In this day I will use my arduino
[22:25] <daveake> No he's playing a wav file
[22:26] <daveake> No point uploading that
[22:26] <anerdev> My arduino now work perfect, but is in my lab ... I need only to put the time in the string ..
[22:26] <anerdev> I will made the antenna and when I will have I will do all test :))
[22:27] <Ian_> OK, agreed daveake. Yes, good if you can do all your offline testing until you have the tracker working to your satisfaction and can then . . .
[22:27] <Ian_> take it out and receive from it. When happy think about Habitat
[22:28] <anerdev> =D perfect !
[22:28] <anerdev> thank you for all guys ... meet in this day (if isn't a problem)
[22:28] <amell> but but, we will miss icarus popping up all the time!
[22:29] <Ian_> WHere are you anerdev?
[22:29] <daveake> I think it's blocked :)
[22:29] <anerdev> Italy, near bologna
[22:30] <Ian_> Ah, OK look forward to seeing your progress.
[22:30] <anerdev> thenk you :)
[22:30] <anerdev> have good night guys
[22:30] <Ian_> Blocked daveake, oh good. Icarus was such a noise source.
[22:30] <anerdev> bye
[22:30] <Ian_> Gratzi
[22:30] <anerdev> Grazie :))
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[22:32] <Ian_> no siento - I have a little Spanish, but no Italian. Learning something new every day. Good night
[22:32] <SpacenearUS> New vehicle on the map: 03PROJECT2 - 12http://tracker.habhub.org/#!qm=All&q=PROJECT2
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[23:06] <SpacenearUS> New vehicle on the map: 03K6RPT-12 - 12http://tracker.habhub.org/#!qm=All&q=K6RPT-12
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[23:20] <lz1dev> !aprs info k6rpt-12
[23:20] <SpacenearUS> 03lz1dev: 03K6RPT-12 is near 033551 Kunugibaru, Tarumizu-shi, Kagoshima-ken 891-2116, Japan 10(31.46,130.65745) at 0311098 meters - 12http://aprs.fi/info/K6RPT-12
[23:20] <SpacenearUS> 03lz1dev: Path: 03K6RPT-12>APSTM1 via 03WIDE2-1,qAR,JA6APT-3
[23:20] <SpacenearUS> 03lz1dev: Symbol: 03O/ Speed: 03274kmph Course: 0380°
[23:20] <SpacenearUS> 03lz1dev: Comment: 03G3JA8.R2Z
[23:20] <SpacenearUS> 03lz1dev: Telemetry: 03Ch1 104191 03Ch2 101268 03Ch3 102694 03Ch4 108 03Ch5 103
[23:21] <amell> 274?!?
[23:21] <lz1dev> yep
[23:21] <lz1dev> :D
[23:21] <amell> windy
[23:22] <arko> http://earth.nullschool.net/#current/wind/isobaric/250hPa/orthographic=-213.67,32.91,1106
[23:23] <lz1dev> that jetstream is no joke
[23:24] <arko> yeah
[23:25] <lz1dev> !aprs betaimport 0
[23:25] <lz1dev> !aprs betaauto 0
[23:25] <lz1dev> pls...
[23:25] <lz1dev> !aprs autobeta 0
[23:25] <SpacenearUS> 03lz1dev: BetaImport of balloons is disabled.
[23:27] <Lunar_Lander> good night
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[23:30] <lz1dev> !wiki aprs:telemetry
[23:30] <SpacenearUS> 03lz1dev: Wiki page 03telemetry (guides:aprs) - 12http://ukhas.org.uk/guides:aprs:telemetry
[23:30] <lz1dev> !aprs autobeta 1
[23:30] <SpacenearUS> 03lz1dev: BetaImport of balloons is enabled.
[23:32] <SpacenearUS> New vehicle on the map: 03K6RPT-12 - 12http://tracker.habhub.org/#!qm=All&q=K6RPT-12
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[23:38] <SpacenearUS> New vehicle on the map: 03K6RPT-12 - 12http://tracker.habhub.org/#!qm=All&q=K6RPT-12
[23:38] <lz1dev> !aprs info k6rpt-12
[23:38] <SpacenearUS> 03lz1dev: 03K6RPT-12 is near 037981 NangMchM Nakamuraotsu, Nichinan-shi, Miyazaki-ken 889-3204, Japan 10(31.54942,131.42931) at 0311163 meters - 12http://aprs.fi/info/K6RPT-12
[23:38] <SpacenearUS> 03lz1dev: Path: 03K6RPT-12>APSTM1 via 03WIDE2-1,qAR,JI6FPP-10
[23:38] <SpacenearUS> 03lz1dev: Symbol: 03O/ Speed: 03274kmph Course: 0380°
[23:38] <SpacenearUS> 03lz1dev: Comment: 03G3JA8:F2Z
[23:38] <SpacenearUS> 03lz1dev: Telemetry: 03Batt 104.19 V 03Solar 101.266 V 03Temp 10-5.9 C 03Sats 108 03S2L 104
[23:42] <superkuh> 274kmph ?
[23:43] <arko> fairly normal
[23:44] <arko> up to 300kmph
[23:44] <lz1dev> when you imagine the balloon and payload
[23:44] <arko> for jetstream
[23:44] <lz1dev> the payload is not under, but to the side
[23:44] <lz1dev> :)
[23:46] <superkuh> Oh. I see I repeated a question from just minutes ago. Still, neat.
[23:51] <lz1dev> should be completing it's first trip around the world in about 2 days
[23:52] <amell> what happened with the HF balloons from Oz? did any make it round ?
[23:52] <lz1dev> PS ones?
[23:52] <amell> yes
[23:52] <lz1dev> 2 popd
[23:52] <lz1dev> not sure about the 3rd one
[23:52] <Vaizki> ok so I was playing around with Eagle more.. I somehow have managed to move parts with pads but they have these tStop layer components which I just noticed are in the old places
[23:53] <lz1dev> plus i had a bug in my database cleaning query
[23:53] <lz1dev> and it nuked them by mistake
[23:53] <lz1dev> ops
[23:53] <amell> nasty
[23:53] <lz1dev> pretty sure the 3rd also popd or was lost
[23:54] <lz1dev> PS-33 was released but had a hardware failure and shut down early.
[23:57] <lz1dev> ^ from their site
[23:58] <amell> shame
[00:00] --- Thu Feb 5 2015