highaltitude.log.20130114

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[00:41] <Spoz> anyone know how to pickup and decode beauro of meteorology balloons in aus?
[00:42] <Darkside> yep
[00:42] <Darkside> depends what type
[00:42] <Spoz> I know they launch one from brisbane airport every morning at 9am
[00:42] <Darkside> they'll launch at 2315Z
[00:42] <Spoz> and thats only 15km from here
[00:42] <Darkside> and 1115Z
[00:42] <Spoz> I read somewhere they only do one launch a day in brisbane
[00:42] <Darkside> yeah
[00:42] <Darkside> cutbacks at the BOM
[00:42] <Darkside> anyway, sondemonitor will decode them
[00:43] <Darkside> there's 3 types of sonde launches here
[00:43] <Darkside> http://rfhead.net/?p=42
[00:43] <Darkside> see that
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[00:43] <Spoz> Im picking up something on 400.00
[00:43] <Spoz> (got my radio today :))
[00:43] <Darkside> that won't be it
[00:43] <Darkside> sondes are between 400.5 and 402MHz
[00:43] <Spoz> ah ok
[00:44] <Spoz> theres a lot of stuff in there too, nothing as clear
[00:44] <Darkside> so it'll either be a analog sonde (likely) or a digital sonde
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[00:44] <Darkside> for the analog sondes you listen on WFM mode, and you should hear a sequence of high pitched tones
[00:45] <Darkside> if it's digital, you need to listen on regular FM mode, and it sounds..
[00:45] <Darkside> well
[00:45] <Darkside> i can't remember what they sound like lol
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[00:45] <Darkside> haven't tracked one of those in a while
[00:46] <Darkside> sondemonitor will decode both of them: http://www.coaa.co.uk/sondemonitor.htm
[00:46] <Spoz> mm, cant find my 3.5mm cable at the moment so have to try that tomorrow
[01:01] <Spoz> I didnt realise that was your blog darkside
[01:02] <Darkside> lol
[01:02] <Spoz> Ive seen it before actually
[01:02] <Darkside> where?
[01:02] <Darkside> well, what post?
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[01:05] <Spoz> I think the habamp one
[01:05] <Darkside> ahh
[01:05] <Darkside> the habamp has been quite popular in the UK
[01:05] <Darkside> lots of people using them with RTLSDRs
[01:05] <Spoz> mm
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[01:12] <Spoz> the heatsink for my video transmitter is only 17g... I hope it works
[01:12] <Spoz> it has two large fins I can put externally
[01:13] <Darkside> hrm
[01:14] <Spoz> I still dont really get heatsinking in near-vacuum
[01:14] <Spoz> its all by radiation I guess?
[01:14] <Darkside> yup
[01:14] <Spoz> so does large surface area help?
[01:14] <Darkside> yes, as large as yuo can
[01:15] <Spoz> hm
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[01:59] <Spoz> casa returned my phone call!
[02:00] <Spoz> the lady who was handling my case went on leave too which I think will work out better for us
[02:00] <Darkside> heh
[02:00] <Spoz> sounds like a guy at the notam office is pushing them to just let us launch wherever
[02:00] <Spoz> but I'll have to see what they say
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[07:08] <x-f> good morning
[07:09] <x-f> Boggle, your internets are a bit broken
[07:11] <x-f> floating "BALOON" over Canada - http://aprs.fi/#!call=a%2FBALOON&timerange=43200&tail=43200
[07:12] Nick change: azend -> DontGotNoProxy
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[07:14] <x-f> its telemetry is in &*%!$& format :/
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[07:29] <oh7lzb> yeah, that's a good thing, plots nicely (http://aprs.fi/telemetry/a/BALOON) and duplicate / delayed packet removal works well based on the telemetry sequence number within the position packet
[07:30] <Darkside> er
[07:30] <Darkside> you shouldn't be using BALOON as the callsign
[07:30] <oh7lzb> but the ugly thing is 35 second packet rate and WIDE1-1,WIDE2-1 path, it puts a lot of traffic on the channel
[07:30] Nick change: azend -> NotAnIdiot
[07:31] <oh7lzb> Darkside: it's not the greatest thing, but it's allowed (and pretty common) in the US to use a "tactical callsign", legal as long as you also put your callsign somewhere else every now and then
[07:31] Nick change: NotAnIdiot -> azend
[07:31] <Darkside> mm
[07:31] <oh7lzb> there
[07:32] <x-f> oh7lzb, no plot for altitude?
[07:32] <oh7lzb> there are plenty of digipeaters in the US with tactical callsigns, with the real callsign in the comment once per 15 mins or so
[07:32] <oh7lzb> z-f: sure, BALOON
[07:32] <oh7lzb> I mean http://aprs.fi/info/graphs/a/BALOON
[07:33] <oh7lzb> The US hams on APRSSIG say that it's OK even if you only transmit the real callsign on CW every 10 minutes - it doesn't necessarily need to go in the AX.25 data packet itself. :)
[07:33] <x-f> ah, on another page
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[07:34] <oh7lzb> yeah, that's not in telemetry data contents, it's in the regular APRS data
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[07:49] <eroomde> SNOW
[07:54] <x-f> ..in January, oh noes :>
[07:56] <eroomde> well, as long as it doesn't do the usual flight and train affecting thing
[07:56] <Randomskk> ha ha
[07:56] <Randomskk> surely you jest
[07:56] <Randomskk> of course it will do that
[07:57] <eroomde> i will be angry
[07:57] <Randomskk> there is actual snow currently falling, trains can't possibly be expected to run
[07:57] <eroomde> i want to get out
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[07:57] <eroomde> the only snow falling here is from the exhaust from out boiler condesning and falling back down
[07:57] <eroomde> which i can see out of the kitchen back door
[07:57] <Randomskk> haha
[07:57] <Randomskk> nice
[07:57] <Randomskk> there's a reasonably amount of large bits of snow falling out my window
[07:58] <Randomskk> not super heavy though. not yet.
[07:58] <fsphil> NO SNOW HERE
[07:58] <fsphil> I was expecting it
[07:58] <fsphil> disappointed
[07:58] <fsphil> who do I complain to?
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[07:58] <eroomde> heaviest across north east england says the nice man on radio 4 currently
[07:59] <fsphil> hmm.. I'm neither in the north east or in england
[07:59] <fsphil> drat
[08:00] <Randomskk> pretty https://www.dropbox.com/s/4wod3mnvgsa17ws/2013-01-14%2007.58.52.jpg
[08:00] <Randomskk> though I was definitely not up for opening the window to get a better photo
[08:00] <eroomde> nice
[08:00] <eroomde> yes i will hold back on opening the door
[08:00] <eroomde> but i will take my camera in
[08:01] <eroomde> i'm starting to see the utility of accessories i thought were needless tricking up of the camera
[08:01] <eroomde> eg a thumb grip
[08:02] <eroomde> http://www.lensmateonline.com/store/fujifilm_x100_thumbrest_plus.php
[08:02] <eroomde> not sure i want it enough to spend $50 on it
[08:02] <eroomde> but i definitely hold the camera in a way where having that would help, and i have certainly accidently jogged the exposure compensation wheel
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[08:03] <Randomskk> wow
[08:03] <Randomskk> that seems quite elaborate though
[08:03] <eroomde> well, it's apparently quite rigid in use, which is nice
[08:04] <Randomskk> you'd hope so, given as it's solid alu
[08:04] <eroomde> i mean rigitdly coupled to the camera
[08:05] <eroomde> no slop
[08:05] <Randomskk> mm. hotshoes are good for that.
[08:05] <Randomskk> I wonder if it has anything to stop it shorting over the hotshoe pads
[08:05] <Randomskk> the anodisation layer I guess
[08:05] <eroomde> yeah i wondered that too
[08:05] <Randomskk> well even just AlO
[08:05] <Randomskk> but I wouldn't want to just trust the oxide layer here...
[08:05] <eroomde> i think One Doesn't Trust anaodization as insulation as a generaly policy
[08:05] <Randomskk> indeed
[08:06] <Randomskk> not sure if it matters with hotshoe, that said
[08:06] <Randomskk> can't be good for it though
[08:06] <eroomde> it's not the kind of camera where i use the flash anyway
[08:06] <eroomde> the builtin one, let alone external
[08:06] <eroomde> incidendlty the built in one is by far the best i've ever used
[08:06] <eroomde> the exposure is perfect
[08:07] <eroomde> you wouldn't know you'd used flash from an exposure POV, it's very subtle
[08:07] <eroomde> but, given the low light performance is so good, i don't bother
[08:07] <eroomde> just shoot ISO3200 and f/2 indoors
[08:08] <Randomskk> heh, indeed
[08:09] <Randomskk> direct flash on skin is always terrible, anyway :P
[08:09] <eroomde> yes, people look anaemic
[08:10] <eroomde> it's basically just a fill flash on the x100
[08:10] <eroomde> v surprising
[08:12] <eroomde> eg this is quite representative of the kind of results i've been getting
[08:12] <eroomde> http://www.flickr.com/photos/paparazzi666/5699384502/in/photostream/
[08:12] <eroomde> tis SFW despite warning
[08:13] <Randomskk> yea, don't really need flash when iso3200 and f/2 works that well
[08:13] <Randomskk> wait
[08:13] <Randomskk> I see
[08:13] <Randomskk> that was with flash
[08:13] <Randomskk> i r gud at reading
[08:13] <Randomskk> so, okay, that is a well exposed flash :P
[08:17] <eroomde> yep, best flash i've ever used on a camera in automatic mode
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[08:25] <costyn> I taped a piece of paper over my flash on my DSLR because on fully automatic it was overcompensating the flash
[08:25] <costyn> now it's much softer light and a definite improvement
[08:26] <costyn> in other modes you can of course turn down the flash, but that's not always convenient
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[08:37] <lz1dev> costyn: flashes on portable cameras are terrible
[08:38] <costyn> yup
[08:38] <zyp> internal flashes on dslrs are too
[08:38] <costyn> yup
[08:38] <lz1dev> its the same thing
[08:39] <costyn> i have a speedlight for on top of my canon, but its too big and bulky to use it often
[08:40] <lz1dev> you get used to it
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[08:40] <lz1dev> once you see the dramatic difference
[08:41] <zyp> my 580EX is probably the best investment I've done wrt. to the quality of indoors photos I take
[08:41] <costyn> ya I guess. but for quickly taking pics when the kids do something funny or cute, not so great
[08:41] <costyn> zyp: ceiling bounce ftw
[08:41] <zyp> yep
[08:41] <zyp> I usually keep it on the camera, so it's pretty much always ready
[08:42] <eroomde> except for the x100 as we were discussing
[08:42] <eroomde> as exemplified by adam not realising flash was used in the example flash shot
[08:42] <zyp> can't see it without logging in
[08:43] <lz1dev> costyn: i think a pieces of paper is too much for inbuild flash to pass through
[08:44] <lz1dev> although it probably depends on the flash
[08:44] <eroomde> and the paper
[08:44] <lz1dev> on DSRL with menual settings, you get get the flash to fire at max power
[08:44] <lz1dev> and with some diffusion, the result is not bad at all
[08:44] <costyn> lz1dev: on fully auto I get nice results with a piece of paper
[08:44] <costyn> lz1dev: thought I'd share the tip
[08:45] <costyn> I don't always feel like manual or aperture mode
[08:45] <lz1dev> i prefer consistant result across pictures
[08:45] <lz1dev> for post
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[08:49] <zyp> I've never seen the point in full auto once you know how to use the camera
[08:49] <zyp> my old 30D tended to always make the wrong decisions in full auto
[08:50] <lz1dev> once you know, you prefer one shot over another
[08:50] <lz1dev> so auto doesnt work in most cases for you
[08:50] <lz1dev> but on the flip side, it does all the things right
[08:51] <costyn> I know how to use it, but usually I'm just lazy and my wife doesn't really want to learn the ins and outs of photography
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[08:53] <eroomde> i usually shoot manual or AP, and raw, which gives a couple of extra stops of leeway to poke in lightroom
[08:54] <eroomde> manual when there's time, AP when wondering around the streets are you're constantly going from into the sun to out of the sun to the shadow of a building
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[08:56] <zyp> I have a few simple rules of thumb I follow
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[08:58] <zyp> AP whenever the scene is mainly lit with ambient light (might fill with flash), manual when flash is main light source or I do long exposures or other shots where camera can't judge the light properly
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[09:00] <zyp> usually leave the camera on ISO400 unless there is a reason to use something else
[09:01] <zyp> that's how I cope with being lazy, and I'm a firm believer that it gets me better results than full auto without requiring more work
[09:01] <costyn> zyp: you're probably right
[09:01] <costyn> I should be more unlazy :)
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[10:14] <x-f> looks like "BALOON" lost power and went silent for the night
[10:15] <fsphil> there's a floater up?
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[10:17] <x-f> yeah, over Canada
[10:17] <x-f> http://aprs.fi/#!mt=roadmap&z=11&call=a%2FBALOON&timerange=43200&tail=43200
[10:18] <x-f> probably still up, no position reports for 1.5 hours
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[10:56] <nosebleedkt_> s
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[11:30] <Spoz> anyone know much about the ntx2?
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[11:30] <Spoz> I've got it set up as per the ukhas wiki, and when I fire up dl-fldigi I'm not getting two bands in the waterfall
[11:30] <Spoz> I can hear the rtty on the radio though
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[11:31] <UpuWork> screen shot of what you can see pls
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[11:33] <costyn> and record the sound if you can :)
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[11:36] <mattbrejza> at a guess the shift is two high so one of the lines is outside the radios BW
[11:37] <Spoz> http://balloon.theredpaintings.com/fldigi.PNG
[11:37] <costyn> looks like a gain issue?
[11:37] <Spoz> the voltage is 2.2v normally and 2.7v when txd is high
[11:38] <costyn> Spoz: turn up the volume on your radio
[11:38] <Spoz> yeah that doesnt help
[11:38] <Spoz> it just makes that line red
[11:38] <Spoz> I think the other band might be >3000hz?
[11:38] <costyn> hmm
[11:38] <Spoz> like matt said?
[11:38] <costyn> could be
[11:38] <Spoz> the lower half of that graph is the TX
[11:38] <costyn> what are your resistor values?
[11:38] <Spoz> ie the band disappears when TXD is high
[11:39] <Spoz> http://ukhas.org.uk/guides:linkingarduinotontx2
[11:39] <Spoz> as per that
[11:39] <costyn> well then yes, mattbrejza is probably right
[11:39] <Spoz> 4k7 and 20k
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[11:39] <Spoz> is this where I punch a hole in the sticker on the NTX2 and fiddle with the pots?
[11:39] <costyn> Spoz: no, fiddle with your resistors
[11:39] <costyn> Spoz: swap the 20k for something else
[11:40] <costyn> Spoz: the example shows only a difference of 0.2v
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[11:42] <Darkside> Spoz: what costyn said
[11:42] <Darkside> your shift is probably too high,and it outside dl-fldigi's bandwidth
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[11:43] <Spoz> ah and no way to increase the bandwidth?
[11:43] <mattbrejza> use a rtl donlge
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[11:45] <eroomde> UpuWork: https://www.youtube.com/watch?v=l7z84VCgnfc
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[11:47] <UpuWork> I shall watch later eroomde :)
[11:47] <UpuWork> how many Boggles are needed ?
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[11:48] <eroomde> it's a bit more relaxing that one
[11:48] <costyn> Spoz: actually in my setup 20k was for 3.3v, I needed a 47k resistor to get a 425 shift
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[11:49] <fsphil> the mind boggles
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[11:52] <Spoz> I've got 60k on it now, but I've pushed the whole thing outside the 3khz now
[11:52] <Spoz> 60k seems to get the right shift
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[11:53] <Spoz> but I have to adjust the divider
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[11:53] <Spoz> I can see the artifacts next to the bands moving with each pin change though, so that's the problem
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[11:56] <Spoz> I am in fact using a 3v micro
[11:56] <Spoz> it doesnt arrive till tomorrow though, I was hoping to get it working just to see
[11:57] <Spoz> now I know thats the problem I think I'll leave it for today
[11:57] <costyn> Spoz: allright, well glad you found it then
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[11:58] <Spoz> yeah, thanks
[11:58] <Spoz> makes sense now :)
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[12:26] <costyn> hmm what altitude is this? http://i.imgur.com/5ZYbl.jpg?1
[12:27] <costyn> airline cruise altitude?
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[12:29] <Spoz> looks it
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[12:33] <x-f> it's alive again - http://aprs.fi/#!call=a%2FBALOON
[12:34] <oh7lzb> hmm, sunrise?
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[12:36] <x-f> seems so - http://www.daylightmap.com/
[12:37] <fsphil> heading my way :)
[12:38] <fsphil> it's gone up a fair bit
[12:38] <costyn> fsphil: quite a whiles to go before it gets to you :P
[12:39] <fsphil> nothing like being prepared costyn :)
[12:39] <costyn> :)
[12:40] <fsphil> I'm always prepared and ready early as you know
[12:41] <fsphil> it's rising atm, I wonder if it's about to burst
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[12:44] <fsphil> aprs.fi needs an altitude graph
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[12:45] <x-f> TIL there is one already - http://aprs.fi/info/graphs/a/BALOON
[12:45] <fsphil> ah very good
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[12:48] <x-f> descended by 100 m
[12:48] <fsphil> you need better internet Boggle
[12:48] <fsphil> pop?
[12:48] <x-f> heh
[12:48] <fsphil> on the way down
[12:49] <fsphil> that's going to be a tricky recovery
[12:49] <fsphil> yea, 25km
[12:49] Action: fsphil switches to satellite view, and cries
[12:49] <fsphil> soooo mannny treeees
[12:49] <costyn> there is no recovery
[12:49] <costyn> except maybe if it alnds on those powerlines
[12:50] <x-f> is that water or ice there?
[12:50] <fsphil> looks like ice
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[12:50] <fsphil> the other sat photo further north looks like water
[12:51] <fsphil> taken at different times I guess
[12:51] <Spoz> wow
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[13:01] <oh7lzb> Looks like it'll land in a tree up a hill, or drown in a Lac
[13:02] <costyn> oh7lzb: likely
[13:02] <fsphil> I'm pretty certain it'll land in Canada
[13:02] <x-f> found jetstream
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[13:03] <costyn> x-f: yea really moving
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[13:06] <Spoz> yeah thats not getting recovered is it
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[13:07] <Spoz> 270km/h jesus
[13:08] <x-f> hmm.. somebody should try a transatlantic flight using jetstream :)
[13:08] <fsphil> slowing down now
[13:08] <costyn> x-f: I think they did
[13:08] <fsphil> that was Whitestar's plan
[13:08] <costyn> it's quite hard
[13:09] <x-f> i was on the WS team (partly), i know :)
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[13:09] <fsphil> sadly the jetstream goes the wrong direction for us east-atlantic'ers
[13:10] <x-f> but it reverses in June, iirc
[13:11] <fsphil> it's not as fast
[13:11] <fsphil> although still fast enough to make land
[13:11] <fsphil> I'm gonna at least try this year
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[13:12] <fsphil> it'll be nice to launch in the summer for once
[13:12] <fsphil> better put my application in now
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[13:13] <x-f> heh, this reminds me to make a phone call to our CAA now
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[13:14] <craag> Just wondering, how do people get the latex to survive so long on x-atlantic floats?
[13:14] <x-f> BALOON may have a wet landing
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[13:15] <craag> I thought the UV usually damaged it and caused a burst within a day or so.
[13:15] <costyn> I thought APRS always needed to be sent by an official call-sign
[13:15] <fsphil> there's a callsign in the comments
[13:15] <costyn> ah yea
[13:16] <fsphil> craag: I think it's just being underfilled puts less strain on the latex
[13:16] <fsphil> lasts a bit longer
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[13:18] <fsphil> a 2000g might make a good floater
[13:18] <fsphil> I think the last few 2000g flights where aiming for altitude, and didn't get very all that high
[13:19] <Darkside> hrm
[13:19] <Darkside> i can't remember if horus 16 was a 1600g or 2000g
[13:19] <oh7lzb> Apparently in the US it's enough to do an AFSK CWID, no legal requirement to put a callsign in the AX.25 frame :)
[13:19] <Darkside> i think it might have been a 2000g
[13:19] <fsphil> don't recall anyone floating a 2000g
[13:19] <fsphil> ooh that might be one then
[13:20] <fsphil> that wasn't intended to float though
[13:20] <fsphil> with less gas it might have survived longer
[13:20] <fsphil> I'm still amazed it floated for as long, only to land within sight of the coast
[13:20] <Darkside> well it only had 400g of neck lift
[13:20] <Darkside> lol
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[13:21] <Darkside> http://projecthorus.org/wp-content/uploads/2011/10/2011-09-18-08.42.03-copy.jpg
[13:21] <Darkside> thats the only pic of the balloon i have
[13:21] <fsphil> hmmm it could be 1600g
[13:21] <fsphil> I suppose the difference wouldn't be obvious
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[13:22] <fsphil> very appropriate censorship there
[13:22] <Darkside> yup
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[13:27] <fsphil> so a 2000g+H2 would be very interesting to try
[13:28] <fsphil> they're still tracking this thing
[13:28] <fsphil> 951m
[13:28] <oh7lzb> Goes down close to bigger roads
[13:29] <Spoz> looks like it's going in the drink
[13:29] <fsphil> not sure we'll find out
[13:29] <Spoz> is there anyone to recover it?
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[13:30] <fsphil> doubtful
[13:30] <oh7lzb> yeah, that was the last packet it seems
[13:30] <Spoz> hm
[13:31] <fsphil> looks splashy
[13:31] <fsphil> even the bit of land there looks wet
[13:31] <Spoz> is it water or snow
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[13:32] <Spoz> it looks like a lake
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[13:32] <costyn> so. many. trees.
[13:32] <fsphil> yea
[13:32] <fsphil> suddenly landing in the yorkshire dales doesn't seem as bad
[13:32] <costyn> I'm suddenly not so worried about deforestation any more
[13:33] <costyn> fsphil: hehe... yea had that same idea when Majed in Saudi had his land way out in the desert
[13:33] <fsphil> at least that was flat
[13:33] <fsphil> there where mountains and forests around there
[13:34] <fsphil> and knowing my luck, it will have been on a forest on the top of a mountain in the middle of a military firing range
[13:34] <Spoz> sounds like out launch next weekend
[13:34] <Spoz> we dont have a lot of good landing spots
[13:34] <x-f> fsphil, you forgot a power line
[13:34] <Spoz> lots of military land, lots of mountain ranges
[13:34] <fsphil> x-f: thankfully the one thing the dales don't have, is power lines
[13:35] <x-f> ah so :)
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[13:35] <x-f> Bogglebogglebogglebogglebogglebogglebogglebogglejon
[13:35] <costyn> fsphil: :)
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[13:37] <costyn> actually it landed pretty close to that 175 road
[13:37] <costyn> there's streetview on that road
[13:37] <costyn> looks very friendly in the summer
[13:38] <costyn> probably not so much now :)
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[13:38] <x-f> looks pretty much like over here
[13:39] <costyn> in winter it's probably the scene for Ice Road Truckers
[13:39] <x-f> haha
[13:41] <x-f> it's 10 degrees lower than my latitude, can't be THAT harsh
[13:52] <fsphil> this is 8 degrees lower than where I am: http://i.imgur.com/9U9PO.jpg
[13:52] <fsphil> and we don't usually get snow at all
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[13:55] <x-f> eek
[13:55] <costyn> well, we get the nice North Atlantic Current to warm it up for us
[13:56] <costyn> it = Europe
[13:56] Action: x-f hugs Gulf stream.
[13:56] <costyn> err that one yea
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[13:57] <x-f> that said, we're expecting -26 next Saturday
[13:58] <costyn> holy crap
[13:58] <costyn> x-f: you're in Latvia right?
[13:58] <x-f> yes
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[13:59] <costyn> how the heck do you cope? how do you start your car in the morning?
[13:59] <x-f> but it's normal - we have winter tires and warm houses and shit
[13:59] <x-f> it just.. starts
[13:59] <costyn> do you have those car heaters for when your car is parked?
[13:59] <costyn> not sure what they're called in English
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[14:00] <Randomskk> hey eroomde this might be relevant to your interests
[14:00] <Randomskk> http://www.flickr.com/photos/91049302@N00/8198059534/
[14:00] <costyn> x-f: 'parking heater'
[14:00] <Randomskk> guess what this person's trying to do
[14:00] <costyn> x-f: http://www.siltsauto.lv/
[14:00] <costyn> x-f: how close is Latvian to Finnish and Estonian?
[14:01] <x-f> costyn, it's not a popular think but some do, i know
[14:01] <fsphil> please don't tell me that's being launched Randomskk
[14:01] <fsphil> I note the spot
[14:01] <costyn> x-f: I was in Finland on vacation once, saw a car park with a lot of electrical hookups for running those heaters
[14:01] <x-f> costyn, they have almost nothing in common
[14:01] <Randomskk> fsphil: I believe it is planned to be launched :P
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[14:02] <fsphil> but it's a nice canon camera
[14:02] <costyn> x-f: ok, good to know... although some Estonians that I spoke to said they could understand Finnish
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[14:02] <Randomskk> someone emailed the cusf list to ask if we could clear up the conflicting information they'd found about whether it would be legal to fly a trackuino (which has the 300mw aprs thing)
[14:02] <Randomskk> fsphil: what? nah. looks like a 1000 or something crap
[14:02] <x-f> costyn, yes, Estonian and Finnish are similar, Latvian language is similar to Lithuanian
[14:02] <Randomskk> stock lens too
[14:03] <Randomskk> 550D perhaps
[14:03] <Randomskk> even so
[14:03] <fsphil> that's better than mine!
[14:03] <Randomskk> well sure, it's better than mine too
[14:03] <Randomskk> but the lens is still rubbish :P
[14:03] <fsphil> yea
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[14:03] <fsphil> I got a better one
[14:03] <fsphil> which cost nearly as much as the camera
[14:03] <Randomskk> only nearly as much? :P
[14:03] <fsphil> yea, I got a budget one :)
[14:04] <fsphil> and that was discounted
[14:04] <Randomskk> hehe
[14:04] <fsphil> I wonder why not just use polystyrene
[14:04] <Randomskk> oh you are missing the key detail that makes it relevant to eroomde's interest
[14:05] <fsphil> I don't see any food in this picture at all
[14:05] <Randomskk> hahaha
[14:05] <Randomskk> indeed
[14:05] <Randomskk> no it's electronically steerable for stabalised photos
[14:05] <fsphil> aaah
[14:05] <fsphil> I was wondering what was up with the top part
[14:05] <Randomskk> indeed
[14:05] <Randomskk> I am... extremely curious to see how well it works out
[14:05] <oh7lzb> costyn: In the morning, when parking near the office, I configured my car to warm up so that it'll be ready to go at 5 PM. I think the heater will kick in automatically maybe 25 minutes from now.
[14:05] <Randomskk> not a trivial undertaking
[14:05] <fsphil> no definitely not
[14:06] <oh7lzb> Just set the time, and it'll start the heater early enough, depending on the current temperature.
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[14:07] <oh7lzb> Colleague has a remote control in his car key which works from a couple hundred meters away, with positive feedback / ACK from the car that the heater control button press was received.
[14:07] <oh7lzb> Right in the middle of our 70cm ham band, naturally.
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[14:12] <costyn> oh7lzb: nice
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[14:28] <eroomde> [1]Boggle: sort out your conection please
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[14:31] <costyn> I ignore quits and joins in this channel
[14:31] <costyn> really makes it so much cleaner
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[15:01] Nick change: [1]Boggle -> Boggle
[15:04] <griffonbot> Received email: Radim Mutina "[UKHAS] STS-2 Launch Announcement"
[15:05] <x-f> oo, live pics
[15:05] <mattbrejza> thats quite a payload
[15:06] <radim_OM2AMR> :-) just our second, we have a lot to learn yet :-)
[15:06] <radim_OM2AMR> ping SP9OUB_Tom
[15:06] <mattbrejza> i was expecting different boxes for everything
[15:06] <radim_OM2AMR> there are just different batteries for everything
[15:07] <mattbrejza> i was expecting each of the 3 trackers to be in different boxes
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[15:07] <mattbrejza> also have you made sure those 808 cameras dont mess up GPS? (they have been known to in the past)
[15:07] <radim_OM2AMR> yes, I undestand
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[15:08] <radim_OM2AMR> yeah, we flown with those already in STS-1, fortunatelly no jam for gps, probably due to active gps antenna and some saw filter inside Venus chip
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[15:08] <craag> With a gps antenna physically resting on a recent #16 model, I had no issues.
[15:09] <mattbrejza> i suppose all these cameras are different
[15:10] <mattbrejza> either way, good luck tomorrow, although probably wont come west enough to be heard here
[15:10] <radim_OM2AMR> maybe, you know, chinese guys:-)
[15:10] <radim_OM2AMR> ok, thanks a lot :-)
[15:10] <fsphil> 18 batteries?
[15:11] <radim_OM2AMR> fsphil, yes
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[15:11] <radim_OM2AMR> six for PI, four for each atmega board, four for usb cams
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[15:12] <radim_OM2AMR> heavy payload, will not pretent to make any altitude records :-)
[15:13] <daveake> :-). What job is the Pi doing for you?
[15:14] <UpuWork> Hey radim_OM2AMR we do have a backup tracker if needed
[15:14] <UpuWork> nice job
[15:14] <mattbrejza> ssdv i think daveake
[15:14] <daveake> ah cool
[15:14] <radim_OM2AMR> daveake, just SSDV, so make photo from usb webcam, convert it and send it to the ground
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[15:15] <radim_OM2AMR> UpuWork, we would like to save your servers anyway - maybe due to google license (10k visitors per day I I'm right)
[15:15] <radim_OM2AMR> *if
[15:16] <fsphil> make sure the SD card is secure
[15:16] <radim_OM2AMR> fsphil, yeah, I ran into issues with it during the tests, so it's secured nov
[15:16] <radim_OM2AMR> now
[15:16] <Randomskk> radim_OM2AMR: is your tracker actually downloading from spacenear.us or from habitat?
[15:17] <radim_OM2AMR> Randomskk, sec please, I have to ask our guys
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[15:18] <UpuWork> We got alot of hits when the Reg flight was up
[15:18] <UpuWork> natrium42 moved it to Amazonf AWS for a short period
[15:18] <fsphil> the ssdv page should handle quite a lot now
[15:18] <fsphil> *load
[15:19] <radim_OM2AMR> Randomskk, it is downloading through json from spacenear.us
[15:20] <Randomskk> okay. that's really not how it's meant to work
[15:20] <Randomskk> there are better ways to do it that are more reliable and easier and have lower load on the server
[15:20] <Randomskk> but probably too late to change for now
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[15:21] <Randomskk> for future reference
[15:21] <Randomskk> you can use http://habitat.habhub.org/ept/ to generate a URL
[15:21] <Randomskk> which will return exactly the data you want
[15:21] <radim_OM2AMR> yes, too late now, it's problem with that json interface ?
[15:21] <Randomskk> from the main database
[15:21] <Randomskk> what you're doing will work for today I should think
[15:22] <Randomskk> but generally it would be better to use ^
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[15:22] <Randomskk> e.g. for STS-2
[15:22] <Randomskk> http://habitat.habhub.org/habitat/_design/ept/_list/json/payload_telemetry/flight_payload_time?include_docs=true&startkey=[%229a187135b880772c5b0a12ee746dbd5f%22,%22c480a92d39c660244ecd296704b0a215%22]&endkey=[%229a187135b880772c5b0a12ee746dbd5f%22,%22c480a92d39c660244ecd296704b0a215%22,[]]&fields=_sentence,sentence_id,time,latitude,longitude,altitude,speed,temperature_internal,temperature_external,batt
[15:22] <Randomskk> ery,humidity,pressure,satellites
[15:22] <Randomskk> (URL broke over multiple lines)
[15:22] <Randomskk> but you use that URL and it will return all data (parsed etc) from the payload
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[15:23] <UpuWork> radim_OM2AMR
[15:23] <radim_OM2AMR> ok, thanks for info guys
[15:23] <UpuWork> we think that balloon even with that ascent and payload will go higher than 34km so just watch your predictions don't do anything silly if it goes to say 38km
[15:23] <radim_OM2AMR> I hope we will never fly for such huge audience :-|
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[15:24] <radim_OM2AMR> again
[15:24] <radim_OM2AMR> UpuWork, yes, it should be, our first was planned for 35km and gave 39km :-) So we will for sure put there three more "STIRKS" :-)
[15:25] <UpuWork> with a 6.5m/s you need to go to the larger unit the daveake
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[15:25] <radim_OM2AMR> :-) Daveake is how many Stirks ? :-D
[15:26] <UpuWork> 10 = 1 daveake
[15:26] <radim_OM2AMR> we will be happy to burst in woowoo zone maybe
[15:26] <radim_OM2AMR> ohhh, so much ? :-)
[15:27] <UpuWork> anyway good luck , pictures should be nice
[15:27] <fsphil> I've cleared the live page
[15:28] <UpuWork> yep cleared spacenear.us down
[15:28] <fsphil> you should be launching just as I wake up :)
[15:28] <radim_OM2AMR> thank you Anthony, fsphil and all, I have to pack all items, I will be on launch site this evening
[15:28] <WillDuckworth> how exciting
[15:33] <DrLuke> Randomskk: is that kind of output documented somewhere?
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[15:34] <mattbrejza> DrLuke: http://habitat.readthedocs.org/en/latest/ (somewhere)
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[15:36] <Randomskk> DrLuke: depends what you're looking for really
[15:36] <Randomskk> basically you can use http://habitat.habhub.org/ept to export data from any given payload(s)
[15:36] <Randomskk> and you can select what data to export
[15:37] <Randomskk> and whether to do csv or json
[15:37] <Randomskk> and when you do that, it generates a URL that has the data
[15:37] <Randomskk> but that URL remains valid for all new data too
[15:37] <Randomskk> so you can use that in software for instance
[15:37] <Randomskk> alternatively you can directly access the database using its normal interface
[15:37] <Randomskk> for which more info is http://habitat.readthedocs.org/en/latest/database.html
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[17:28] <arko> morning
[17:29] <fsphil> good evening arko
[17:29] <fsphil> how are things in the land far far away?
[17:33] <arko> good
[17:33] <arko> had a long night last night doing the final push to finishing the time machine
[17:34] <fsphil> nice. I discovered a flaw in my plan to let future self bring it back already completed.
[17:35] <arko> that sentence hurts my brain
[17:37] <arko> i'll admit, we do keep ripping jokes that it would be nice if the time machine actually worked
[17:37] <arko> :P
[17:37] <fsphil> just you wait. or not. er
[17:37] <arko> ha!
[17:37] <arko> also
[17:38] <arko> whats the inverse of wait
[17:38] <arko> waiting is now in the present waiting for the future
[17:38] <arko> what present [blanking] for the past
[17:38] <arko> O_o
[17:38] <arko> thats deep
[17:39] <eroomde> that's confusing
[17:40] <arko> right?!
[17:40] <arko> the inside of that delorean looked like a spacecraft this weekend
[17:40] <arko> so many dam wiring harnesses
[17:41] <fsphil> they're ugly cars, but I'd still like on
[17:41] <fsphil> one
[17:42] <arko> they are death traps
[17:42] <arko> it's a chassis
[17:42] <arko> fiberglass body
[17:43] <arko> then stainless steel bolted/glued on
[17:43] <fsphil> to be admired, not driven
[17:43] <arko> yeah
[17:44] <arko> if you get in an accident, you might as well be in a sheet metal store during an earthquak
[17:44] <arko> e
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[17:47] <domlin> hai guys
[17:48] <arko> hello
[17:48] <jonsowman> hello
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[17:48] <domlin> how is all?
[17:50] <arko> all is sound
[17:50] <arko> we are one
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[17:52] <eroomde> have you been doing an allnighter arko?
[17:53] <arko> almost
[17:54] <arko> 5am-8am was my sleep between sat and sun
[17:54] <arko> dude, it's seriously like a spacecraft in there
[17:57] <domlin> you're floating?
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[18:09] <arko> i wish :<
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[18:31] <griffonbot> Received email: mclane "Re: [UKHAS] STS-2 Launch Announcement"
[18:34] <griffonbot> Received email: Radim Mutina "Re: [UKHAS] STS-2 Launch Announcement"
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[19:06] <fsphil> Boggle, you're not a good advert for virgin media's cable service :)
[19:08] <Boggle> Yes, sorry. It's actually my wifi connection that keeps dropping, but not sure why :-(
[19:09] <SpeedEvil> microwave oven!
[19:09] <Boggle> Nah, crappy xp driver I think.
[19:09] <lz1dev> aliens
[19:09] <fsphil> definitely aliens
[19:09] <fsphil> they're allergic to 2.4ghz
[19:09] <lz1dev> you cant prove is not aliens
[19:10] <fsphil> therefore proving aliens
[19:10] <lz1dev> naturally
[19:11] <daveake> To aliens, we are aliens
[19:11] <fsphil> I'm thinking of switching to 5ghz wifi, cause the aliens haven't discovered that yet
[19:11] <SpeedEvil> no!
[19:12] <SpeedEvil> 5ghz is their mating signalling frequency. they make your router all sticky.
[19:12] <fsphil> ah man
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[19:14] <HixPad> Discovered this today, anyone seen his mod. Also it looks like its incomplete, can anyone advise?
[19:14] <HixPad> https://sites.google.com/site/wayneholder/self-driving-rc-car/getting-the-most-from-gps
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[19:18] <SpeedEvil> don't use floats
[19:18] <SpeedEvil> use integers
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[19:20] <upix> Migth sound a bit strange, but does anyone have BAV99 switching diodes and could post markings on them
[19:21] <HixPad> Does that rule out tinygps then SpeedEvil ?
[19:22] <HixPad> Or is it a case of declaring lat long as int? The standard is flat so it seems it creates a float in the function
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[19:25] <HixPad> upix: Any use? docs-europe.electrocomponents.com/webdocs/0ed1/0900766b80ed1cee.pdf
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[19:28] <upix> HixPad: not much, I got a bunch of them from ebay, but according to marking it seems to be manufactured quite a while ago, so I am wondering if others are using similary old diodes
[19:31] <HixPad> Can you use tinygps to get int for lat long?
[19:32] <HixPad> If you create a function to multiply the values the inbuilt function spits out?
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[19:32] <HixPad> To get the decimal part
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[19:34] <arko> meatmanek: did you guys ever recover?
[19:35] <chrisstubbs> you could split it to get the part after the .
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[19:38] <HixPad> So if I created a function to multiply the lat by number of 0 after . And then minus the part after . As an int and so on for the rest after the . Min using the deg part form the int?
[19:39] <HixPad> Not able to do anything on iPad so trying to get theory
[19:39] <fsphil> you could get 5 digits after the decimal point by going lat * 100000 % 100000
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[19:41] <HixPad> Right, so sort of on the right track. As long as I don't use flat it's ok then? Why not to use floats incidentally? Resource or errors
[19:42] <fsphil> the normal printf functions don't have float support in avr-libc
[19:42] <fsphil> they can be added but they're a bit big
[19:42] <mattbrejza> if nmea just string copy?
[19:42] <HixPad> Ah ok, cheers
[19:43] <HixPad> Is that why the tinygps example was about 16 k
[19:43] <HixPad> For not doing a lot
[19:43] <fsphil> three is also dtostrf
[19:43] <fsphil> there*
[19:44] <fsphil> converts a double to a string
[19:44] <HixPad> This is where Kerrigan and Ritchie comes in :)
[19:44] <fsphil> tinygps shouldn't be that big
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[19:44] <mattbrejza> ironic somewhat
[19:44] <fsphil> heh
[19:46] <HixPad> Thought the example sketch was 16k yesterday thought that was a bit excessive. Worried me about using my atmega168....
[19:48] <fsphil> "ip" is a stupid name for a command. googling for help on it is useless
[19:48] <fsphil> </random linux rant>
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[19:49] <HixPad> Can't you +unix -address etc to filter results?
[19:49] <fsphil> it was how to show the ip address I was after
[19:49] <fsphil> "ip a" apparently
[19:51] <fsphil> I'm just used to using ifconfig
[19:51] <nigelvh> What are you trying to get?
[19:51] <fsphil> ip address
[19:51] <nigelvh> Of?
[19:51] <fsphil> ethernet interface
[19:52] <nigelvh> And ifconfig doesn't work?
[19:52] <fsphil> "ip a" worked
[19:52] <fsphil> ifconfig is not installed by default on fedora 18
[19:52] <nigelvh> That just sounds like fedora being stupid.
[19:52] <fsphil> ip is not nearly as friendly
[19:52] <fsphil> agree
[19:53] <HixPad> Naming an os after a hat is stupid...
[19:53] <nigelvh> Duh
[19:53] <HixPad> Fez is much better
[19:54] <nigelvh> I tend to use ubuntu server for stuff. I'm growing less fond of ubuntu desktop
[19:55] <fsphil> I dabbled with ubuntu back in the early days of it, but it never really grabbed me
[19:55] <nigelvh> For my purposes debian would work just as well. I just love the apt package manager.
[19:55] <HixPad> Xubuntu seems to be ok when I use it
[19:55] <fsphil> it was that that kept me away from debian, having grown up with redhat linux
[19:55] <fsphil> but I really do like raspbian
[19:56] <fsphil> I may give debian another spin
[19:56] <nigelvh> I enjoy it. Makes things easy.
[19:56] <nigelvh> But again, as a disclaimer, I'm using these in server type environments, so not using GUIs
[19:56] <fsphil> they're both very easy .. "yum install <thingy>", "apt-get <thingy>"
[19:57] <fsphil> fedora 18 has the cinnamon desktop, definitely trying that
[19:57] <BrainDamage> I would've reccomended arch, but like 6 months ago they decided "fuck installers" and made 1st time setup as manual as gentoo :/
[19:57] <fsphil> eek
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[19:57] <fsphil> that's one step up from linux-from-scratch
[19:58] <BrainDamage> the package mangers still install binary stuff
[19:58] <BrainDamage> but you have to install & configure packages manually :/
[19:58] <fsphil> Mint is looking interesting atm
[19:58] <nigelvh> I've heard good things about mint.
[19:59] <fsphil> going to install it on my spare
[19:59] <nigelvh> Ubuntu based so you get all the newest packages and whatnot, but not the ubuntu desktop.
[19:59] <fsphil> big plus
[20:00] <mclane> upgrading mint is a pain
[20:00] <fsphil> I'm using gnome3 here on my laptop and desktop. I like the look of it, but there's too much missing
[20:00] <mclane> they recommend to install new
[20:00] <fsphil> I do anyway
[20:01] <LazyLeopard> A bloke at one of my radio clubs just pointed me at these --> http://www.flickr.com/photos/91049302@N00/sets/72157629918448066/
[20:01] <mclane> that took half of my christmas holidays
[20:01] <fsphil> check out his latest photo LazyLeopard
[20:03] <LazyLeopard> Funny how things come round... ;)
[20:03] <LazyLeopard> That's a serious camera contraption...
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[20:06] <LazyLeopard> He clearly hasn't talked to enough HABers, or he'd not have been so surprised that his payload landed in a tree... ;)
[20:14] <nigelvh> Have any of you tree habbers thought about including a cutdown that cuts, say 10 minutes after the altitude stops decreasing so you're not hung in a tree by the parachute?
[20:14] <HixPad> Hehe
[20:14] <fsphil> it's been talked about
[20:14] <fsphil> Dan had some water-triggered cut-downs
[20:14] <nigelvh> Squirt gun?
[20:15] <fsphil> it rains a lot here
[20:15] <nigelvh> Couldn't that cut down a bit early?
[20:15] <fsphil> with an rfm22b-based payload it would be simple to send a message to cut-down
[20:15] <fsphil> yea, for the same reason
[20:16] <fsphil> my other plan was to attach food to the cord, let my army of squirrels do the job for me
[20:16] <HixPad> What is replacing the sl1202 from sarantel? Upu said it was deprecated
[20:16] <nigelvh> Haha!
[20:17] <Upu> Hey Hix SL1250 pad is in my Ava.lbr
[20:17] <Upu> They will be in the shop early next week
[20:17] <HixPad> Ok cool. Cheers, silly to do a board with old kit on it. Are prices about the same?
[20:17] <Upu> won't be any more
[20:18] <Upu> Just chatting with the disty
[20:18] <Upu> its not RS
[20:18] <Upu> yay
[20:18] <HixPad> Nicely
[20:19] <fsphil> speaking of RS, my rpi was suppose to be here A YEAR AGO
[20:21] <daveake> Hmm
[20:21] <daveake> Farnell are *much* better at actually shipping RPi
[20:22] <fsphil> just checked, it's july so half a year
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[20:22] <daveake> Really Slow
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[20:24] <fsphil> just give them a poke
[20:25] <fsphil> I've resisted buying the 512mb cause I know this one will arrive the instant I do
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[20:25] <Upu> just cancel the order
[20:25] <daveake> I would
[20:26] <fsphil> hmm, fair plan
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[20:26] <LazyLeopard> fsphil: I cancelled my RPi order with RS. They asked why. I told them their shipping delay was unacceptable.
[20:26] <Upu> cancel, reorder from Farnell, get it on Thursday
[20:26] <daveake> Yep
[20:28] <LazyLeopard> I suppose it's possible they might realise they ought to actually ship things promptly if, say, a few thousand customers cancel and complain... Then again, i's RS, so that may be up with the flying pigs...
[20:31] <fsphil> I'll see if they reply to my email, if nothing by launch I'll just use farnell
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[20:32] <x-f> launch?
[20:33] <fsphil> hah
[20:33] <fsphil> lunch
[20:33] <x-f> ah, false alarm
[20:33] <fsphil> I'm hanging out here too much
[20:33] <daveake> lol
[20:33] <fsphil> I must hab a break
[20:34] <daveake> go to rehab
[20:34] <fsphil> have a long habiday
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[20:44] <fsphil> is this true? "if you hold a helium balloon on a train and it accelerates, you'll get pushed backwards but the balloon will move forwards"
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[20:46] <mattbrejza> i have heard that to be true
[20:46] <Randomskk> http://www.pbs.org/wgbh/nova/lasalle/buoycar.html
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[20:46] <Lunar_Lander> hallo
[20:46] <Lunar_Lander> *hello
[20:46] <Randomskk> it's a common/famous question
[20:46] <Randomskk> the kind of thing they use to interview unsuspecting students
[20:46] <fsphil> I sense an experiment coming on
[20:47] <fsphil> I was reading up on why a helium balloon would actually rise
[20:47] <fsphil> I know the gas is less dense, but I couldn't quite get it into my head why this would cause it to go up
[20:47] <Randomskk> there's a nice derivation you can do by considering small elements
[20:48] <Randomskk> aha
[20:48] <Randomskk> this diagram
[20:48] <Randomskk> http://hyperphysics.phy-astr.gsu.edu/hbase/pbuoy.html
[20:48] <Lunar_Lander> archimedes
[20:49] <bertrik> so the air gets heavier in the back of the car, right
[20:49] <Lunar_Lander> and you know what keeps you on the ground?
[20:49] <Lunar_Lander> cooking Jamie's 15 Minute Meals
[20:49] <Lunar_Lander> xD
[20:50] <HixPad> Would you use an array to cutdown with certain lat long parameters? Thinking something like the wash area
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[20:50] <HixPad> Can of worms
[20:50] <bertrik> and bath tube sink swirl the other way on the opposite hemisphere
[20:50] <daveake> TV chefs move at a sizeable fraction of the speed of light; you have to double all of their timings
[20:51] <fsphil> bertrik: I did try this
[20:51] <daveake> Did a Rick Stein meal at the weekend. "30 minutes prep" my arse. 1 hour more like.
[20:51] <fsphil> it was random
[20:51] Action: bertrik tried the bath tub swirl direction experiment a couple of times and the result was inconclusive
[20:51] <HixPad> I'm hoping I've got some yeast. If I have ciabatta is on the cards
[20:51] <fsphil> yea I got the same result
[20:51] <fsphil> doing science in the shower
[20:51] <Lunar_Lander> btw I got a response to eroomde's shot of Jupiter
[20:51] <fsphil> yay
[20:52] <fsphil> so basically there's more force acting on the bottom of the balloon than the top
[20:53] <fsphil> the air is basically rushing in under it, pushing it up
[20:53] <fsphil> basically
[20:54] <Lunar_Lander> here http://s.gullipics.com/image/a/j/s/5yvnbl-kj3a6n-2wng/IMG6502.jpeg
[20:55] <HixPad> I tried to tap into some of the guys at work who program the nav and infotainment systems into the car. Turns out they use c# ?!
[20:55] <fsphil> oh dear
[20:56] <HixPad> I was surprised. Dunno why? Thought embedded was pretty much al c c++
[20:56] <HixPad> All
[20:56] <fsphil> C++ or C I'd imagine
[20:57] <fsphil> the C# itself probably isn't too bad
[20:57] <fsphil> *language
[20:57] <fsphil> it's the .net parts that are slow and ugly
[20:58] <HixPad> I'm thinking there is a link between F1 and Microsoft
[20:58] <daveake> Lots of crashes?
[20:58] <HixPad> Yup
[20:58] <fsphil> boom
[20:58] <HixPad> Lots of marketing bullshit about developments
[21:00] <fsphil> Saw a BSOD on a bus once, was a bit of a worry
[21:00] <HixPad> Bigoted self opinionated driver
[21:01] <fsphil> and then he turned on the in-bus PC
[21:02] <Lunar_Lander> you mean a bus like a Ford Transit or a public bus?
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[21:02] <fsphil> ford transit is a van
[21:03] <fsphil> you call them a bus in germany?
[21:03] <mfa298> more sorrying is when you see the NT boot screen on an ATM
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[21:03] <fsphil> while your card is in it
[21:05] <HixPad> I'm not worried by the systems in banks, it's the people they employ
[21:05] <Lunar_Lander> the VW Transporter is actually referred to as a "Bus" sometimes
[21:05] <HixPad> Fau vee fans have their own lingo
[21:06] <fsphil> feedoubleyaa
[21:06] <Lunar_Lander> xD
[21:07] <Lunar_Lander> and what do you think about Opel?
[21:07] <Lunar_Lander> or how you say, Vauxhall
[21:07] <fsphil> I have a Clio, little french car.
[21:08] <HixPad> How does that sound in German?
[21:08] <HixPad> Bit like f.a
[21:08] <HixPad> I too have a Clio, but someone changed the rear seats for a v6 :)
[21:09] <HixPad> Mpg is metres per gallon
[21:09] <fsphil> ooch
[21:10] <HixPad> But the engine is in the car with you, sound is much better that way
[21:11] <Lunar_Lander> xD
[21:11] <HixPad> Apart from driving to work on hot days. Warm back
[21:12] <Lunar_Lander> the DeLorean also has the engine in the back
[21:12] <HixPad> So, about the cutdown based on lat long definitions, how would you do it on a curved area like the wash. Purely for theory
[21:13] <fsphil> a polygon is the most common method
[21:13] <HixPad> Fsphil would probably know a wee bit about them :)
[21:13] <HixPad> And how would you define the code?
[21:14] <HixPad> Really base level, it's me. Just an overview
[21:14] <fsphil> something like this, https://github.com/ProjectSwift/swift/blob/master/geofence.c
[21:14] <fsphil> array of points
[21:14] <fsphil> and a function to test for being inside/outside of the shape
[21:15] <HixPad> Ha, I'm picking things up, I thought it would be an array
[21:15] <chrisstubbs> Nice bit of code there fsphil
[21:15] <chrisstubbs> thought it would have been a lot more complex!
[21:16] <fsphil> the inpoly bit is really simple
[21:18] <Lunar_Lander> fsphil, which form does the polygon have?
[21:18] <fsphil> it just tests how many times a pretend line from the point being tested, to a point left and outside the polygon, crosses a line in the polygon
[21:18] <fsphil> if it's an odd number, you're inside
[21:18] <fsphil> even, outside
[21:19] <Lunar_Lander> ah
[21:19] <fsphil> it's up there with binary searches for just beautiful simplicity
[21:20] <fsphil> http://en.wikipedia.org/wiki/Point_in_polygon#Ray_casting_algorithm
[21:20] <fsphil> better description
[21:20] <HixPad> As opposed to ip searches ;p
[21:20] <fsphil> indeed
[21:20] <fsphil> I appear to be turning into a grumpy old unix admin
[21:20] <fsphil> I'll have to grow a beard soon
[21:21] <HixPad> Elbow patches?
[21:22] <fsphil> not going that far
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[21:22] <HixPad> From that description I now have some understanding as to how Catia can do clash detection on car assys
[21:23] <HixPad> I used to work with a lot of elbow patches, FEA bods
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[21:28] <SpeedEvil> I was thinking for a moment that elbow patches were a fea term for the mesh joining two bars
[21:29] <HixPad> Ulna and numerous?
[21:29] <HixPad> Humerous
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[21:44] <OZ1SKY_Brian> hi
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[21:46] <Lunar_Lander> hi OZ1SKY_Brian
[21:46] <Lunar_Lander> Brian, check it out http://s.gullipics.com/image/a/j/s/5yvnbl-kj3a6n-2wng/IMG6502.jpeg
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[21:50] <OZ1SKY_Brian> Hi Lunar_Lander
[21:51] <OZ1SKY_Brian> look at it, but dont get it, the sun or is something else there?
[21:51] <Lunar_Lander> the sun
[21:52] <Lunar_Lander> and that you can see the shape because of the haze
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[21:52] <cuddykid> may be useful as a cheap chase car tablet: http://www.hotukdeals.com/deals/7-0-android-4-0-4-a13-1-0ghz-tablet-pc-with-wi-fi-camera-external-3g-capacitive-1443263
[21:52] <OZ1SKY_Brian> ah in that way. sri but see that alot here, as im close to the sea :-)
[21:53] <Lunar_Lander> :)
[21:53] <Lunar_Lander> and http://s.gullipics.com/image/p/f/h/5yvnbl-kj3bl0-zngm/IMG6522.jpeg
[21:53] <OZ1SKY_Brian> "external 3g" like how, a usb stick?
[21:54] <cuddykid> had a call from Apple today re the iOS chase car tracker app& they won't let it in the store in it's current form - goes "you should add something like a description of UKHAS telling people what you do" - jeez. Oh well, a more fully fledged iOS chase car app is in the works..
[21:55] <mattbrejza> any progress yet cuddykid ?
[21:55] <OZ1SKY_Brian> well i gess thats just appel for ya
[21:56] <Randomskk> cuddykid: I guess that's reasonable though
[21:56] <cuddykid> mattbrejza: kind of, slowly down now as I've got exams for the next week
[21:56] <Randomskk> otherwise anyone who downloads it suddenly finds their GPS position uploaded for all the world to see
[21:56] <mattbrejza> ah yes, they dont help
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[21:56] <cuddykid> Randomskk: true, but it did state in the description clearly that it is works with UKHAS etc
[21:56] <Randomskk> but that doesn't help if you don't know what that is
[21:57] <anerDev> Hi guys ! Who can help me with USB dongle ?
[21:57] <daveake> go on
[21:57] <cuddykid> mattbrejza: current state: http://i.imgur.com/08Q6a.jpg
[21:58] <anerDev> can you help me daveake ?
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[21:58] <daveake> I've no idea till you ask the actual question
[21:58] <Lunar_Lander> hi radim_OM2AMR
[21:59] <anerDev> my question ? Or another question ?!?
[21:59] <mattbrejza> yea its the same as last time, yay exams...
[21:59] <daveake> anerDev Explain *your* question then we can all read it and maybe someone can help
[22:00] <cuddykid> :)
[22:00] <anerDev> so, I have USB dongle and the filtrer (buy from ukhas)
[22:00] <anerDev> on my mac I have installed fl-digi and gqrx
[22:01] <anerDev> I'm using the simple sketch for NTX2 transmitter (PIN 13 HIGH-LOW lool)
[22:01] <anerDev> this is the grqx, is correct ? I think no http://d.pr/i/dkDn
[22:01] <anerDev> sorry, this http://d.pr/i/dkDn
[22:02] <bertrik> it says gqrx, yes
[22:02] <daveake> That's probably not the right frequency
[22:03] <bertrik> go 100x higher in frequency :)
[22:03] <bertrik> also set Mode to USB, not narrow FM
[22:03] <Lunar_Lander> radim_OM2AMR, OZ1SKY_Brian http://s.gullipics.com/image/p/f/h/5yvnbl-kj3bl0-zngm/IMG6522.jpeg
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[22:04] <anerDev> Mode usb
[22:04] <anerDev> set
[22:04] <anerDev> and for frequency ?
[22:04] <bertrik> 434.65 MHz I guess
[22:04] <OZ1SKY_Brian> nice lunar, did see the video
[22:04] <daveake> Whatever it says on your NTX2, minus (say) 20kHz
[22:04] <anerDev> I have 434.650Mhz receiver
[22:04] <daveake> transmitter
[22:05] <anerDev> transmitter sorrY !
[22:05] <anerDev> but in this windows
[22:05] <anerDev> http://d.pr/i/NDay
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[22:05] <OZ1SKY_Brian> Lunar_Lander now you need to fly it
[22:05] <Lunar_Lander> OZ1SKY_Brian, yea
[22:05] <Lunar_Lander> there is one mod however
[22:05] <anerDev> how I set ?
[22:05] <Lunar_Lander> the servo wire for the DS18B20
[22:05] <bertrik> It can help to tune a bit to the side of the frequency you want to receive
[22:06] <OZ1SKY_Brian> anerDev 434.650 000 MHz
[22:06] <daveake> I'm not familiar with that program, but on others you click on the frequency box with a mouse
[22:06] <daveake> 4MHz is out by quite a bit
[22:07] <anerDev> now is correct ? http://d.pr/i/cXEN
[22:07] <OZ1SKY_Brian> anerDev change the freq by clicking above and below the freq
[22:07] <OZ1SKY_Brian> yes
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[22:07] <daveake> No, you need to be a little bit away from the frequency you want to listen to, as a couple of us said
[22:08] <OZ1SKY_Brian> now click down to 649 or 648 and look in the audio window for you signal
[22:08] <bertrik> yeah, tune to 434.300 or so
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[22:08] <bertrik> the transmitter should show up as a line in the waterfall display
[22:09] Nick change: Mike -> Guest17
[22:09] <anerDev> Now is correct ? http://d.pr/i/349D
[22:09] <daveake> You might find it easier if you reduce the range of frequencies shown in that waterfall
[22:10] <anerDev> how ?
[22:10] <OZ1SKY_Brian> anerDev didnt you say your transmitter is 434.650?
[22:10] <daveake> Otherwise it'll be difficult to get the transmitted frequency within the audio passband
[22:10] <anerDev> I have the transmitter at 434.650 Mhz
[22:10] <OZ1SKY_Brian> then you need to look around that freq, 434.300 is way off
[22:11] <bertrik> huh?
[22:11] <daveake> It'll be easier, as I said, if you reduce the range of that waterfall, down to say 100kHz
[22:11] <anerDev> ok guys, now is correct ? http://d.pr/i/g6nT
[22:12] <daveake> Then set the LDO (centre freq) to 434.630MHz
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[22:12] <bertrik> the rtlsdr stick has a 1 MHz bandwidth, and a lot of noise around the center tuner frequency
[22:12] <bertrik> so it's better to stay away a bit from the exact transmitter frequency
[22:13] <daveake> You're not listening. You do NOT set the centre frequency to the same as your transmitter frequency
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[22:14] <daveake> If you do you won't see the actual signal
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[22:14] <anerDev> but where I set the LO frequency ? in the black box at the top of the windows ?
[22:15] <daveake> You've already set it, to 434.650. It needs to be slightly different
[22:15] <mclane> anerDev: set the frequency in the main window to e.g. 434.000000 MHz and then tune to 650 kHz in the small window
[22:16] <anerDev> now is correct ? http://d.pr/i/BkCn
[22:16] <OZ1SKY_Brian> daveake ah ok i had no idea it was bad at center freq
[22:16] <daveake> Yeah it's common to have that
[22:16] <OZ1SKY_Brian> so that was why we had such problems getting trevors usb to work
[22:17] <mclane> anerDev no, go to 650.000 kHz
[22:17] <daveake> On the FCD I set the waterfall width to (IIRC) 100kHz. Makes it much easier to see the signal ... you can see both lines not just one
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[22:17] <bertrik> the R820T type rtlsdr sticks don't have the problem with noise around the center tuned frequency as bad
[22:18] <bertrik> recent gqrx version can zoom, by scrolling while over the frequency bar (just above the waterfall)
[22:18] <daveake> cool
[22:18] <mclane> it should indicate then "Receive: 434.650000 MHz
[22:19] <anerDev> one moment !
[22:20] <meatmanek> arko: the CHP picked up our balloon
[22:20] <anerDev> I have a confusion !!
[22:20] <arko> was it on the 5?
[22:20] <meatmanek> but we haven't gone to get it from them yet
[22:20] <arko> !?
[22:21] <meatmanek> it was off to the side but I'm not sure how far
[22:21] <arko> wow
[22:21] <arko> crazy dude
[22:21] <anerDev> in the main windws, in the black box on the top I set 434.650 000 MHz and on the right, in the small box I set 0.650 kHz ! Is correct ?
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[22:22] <anerDev> in the main windows I set 434.000 000 MHz not 434.650 000 MHz and on the right, in the small box I set 0.650 kHz ! Is correct ?
[22:22] <anerDev> * G8KNN-Jon has quit (Ping timeout: 246 seconds)
[22:22] <mclane> anerDev: no In the main black box you set 434.000000 and in the samll you go to 650.000
[22:22] <bertrik> anerDev: I usually just click on the peak in the spectrum, then use the scroll button to move the frequency down/up
[22:23] <anerDev> ok, one moment
[22:23] <arko> eroomde: http://gizmodo.com/5975668/this-scientific-coffee-machine-could-satisfy-the-biggest-coffee-nerd
[22:23] <bertrik> (or maybe I'm confusing myself now with sdr#)
[22:24] <anerDev> in the small box, on the right, the max value is 409.500 kHz ! http://d.pr/i/2piH
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[22:26] <mclane> then tune in the main box to 434.300 000 and in the small to 350.000
[22:27] <mclane> in the field below the small box in the right it needs to say "Receive: 434.650000 MHz"
[22:27] <anerDev> Now is correct ? http://d.pr/i/qTUm
[22:27] <mclane> yes
[22:27] <bertrik> YES
[22:28] <bertrik> but I don't see any signal there
[22:28] <bertrik> did you set any gain? it's under "input controls"
[22:29] <anerDev> http://d.pr/i/B3fi
[22:29] <anerDev> wath this !
[22:29] <bertrik> put the slider nearly to the right, or just press the A button
[22:30] <eroomde> arko: i take 2 please thankyou bye
[22:31] <arko> hehe
[22:31] <anerDev> like this: http://d.pr/i/B3fi ?
[22:32] <bertrik> no, try more gain (more to the right) , or click A for automatic gain
[22:33] <anerDev> I have clicked A
[22:33] <mclane> the spectrum needs to go up to something like -60 (scale on the left side)
[22:34] <bertrik> anerDev: you linked the same screenshot twice
[22:34] <anerDev> now is in the manual mode, with the cursor on the right: http://d.pr/i/fINc
[22:34] <anerDev> sorru bertrik ! =D
[22:34] <bertrik> with the gain way up, you should see some kind of peak in the spectrum, or a vertical line in the waterfall
[22:35] <bertrik> something must be wrong with your transmitter
[22:36] <mclane> if you have your transmitter in the same room you will see it even without any antenna
[22:36] <anerDev> wait, I send you a foto !
[22:37] <bertrik> some sticks are very sensitive to ESD on the antenna input, so be careful
[22:38] <bertrik> a static discharge on the antenna input will not directly "brick" the stick, but reduce the sensitivity
[22:38] <OZ1SKY_Brian> im off, gn all
[22:38] <mclane> me too, gn
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[22:42] <anerDev> this is the hardware: http://d.pr/i/Hrpi and http://d.pr/i/tvaw and http://d.pr/i/GKgf
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[22:44] <daveake> First, use it without the amplifier. You don't need that for testing in the same room
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[22:44] <daveake> Next, check the wiring on the NTX2.
[22:44] <daveake> Third, check the voltages on the NTX2. i.e. Vcc and the Enable line
[22:45] <anerDev> the wire antenna (70cm) direct connect to usb dongle ?
[22:45] <anerDev> wait
[22:45] <bertrik> you can use the dongle without antenna if the transmitter is in the same room
[22:46] <anerDev> without filter this is the result ! http://d.pr/i/ep3A
[22:46] <anerDev> now I disconnect the antenna
[22:47] <anerDev> ok, this is the result withoud antenna: http://d.pr/i/ep3A
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[22:49] <bertrik> anerDev: I suspect something is wrong with the transmitter rather than the receiver/dongle
[22:50] <anerDev> ok ok
[22:50] <anerDev> tomorrow I will controllo the ntx2
[22:50] <anerDev> wire
[22:51] <anerDev> for now I0m going to bed because tomorrow I have the school
[22:51] <anerDev> =D
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[22:52] <anerDev> good night guys ! =D
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[22:54] <Lunar_Lander> evening arko and bertrik
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[22:56] <chrisstubbs> Evening domlin
[22:57] <chrisstubbs> and lunar
[22:57] <bertrik> bedtime for me, goodnight Lunar_Lander
[22:58] <Lunar_Lander> good night
[22:58] <Lunar_Lander> hi chris
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[22:58] <chrisstubbs> Been out and got myself a Yaesu FT-817 today :)
[22:58] <SpeedEvil> woo!
[22:59] <Lunar_Lander> cool!
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[23:00] <chrisstubbs> went out on saturday with domlin looking at radios and antennas but only got an antenna at the time
[23:03] <mfa298> chrisstubbs: well done, welcome to the FT-817 club.
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[23:04] <chrisstubbs> Haha cheers, I hear it is the best!
[23:04] <Randomskk> they are amazing for HABs
[23:04] <nigelvh> I have a friend with an 817 and he loves it.
[23:04] <Randomskk> portable, runs of batteries, sensitive
[23:04] <mfa298> next step (if you havn't already) is to get an amateur radio license, then you can use it to talk to people as well.
[23:04] <Randomskk> an absolute nightmare of a UI though
[23:04] <Randomskk> I still love my IC7000 to bits
[23:04] <Randomskk> even if it is over twice the price of the 817
[23:04] <chrisstubbs> will be joining my local radio club this week and doing the license
[23:04] <Lunar_Lander> XD https://www.youtube.com/watch?v=kAG39jKi0lI
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[23:04] <nigelvh> I've got an IC-706MKII-G in the car I use.
[23:04] <Lunar_Lander> My Blackberry isn't working!
[23:05] <mfa298> a lot of the newer radios are a pain with all the menus for changing stuff. But if you don't want the menus you get something much bigger.
[23:05] <Randomskk> nigelvh: is that the really new one with touch screen?
[23:05] <Randomskk> oh, mk2, hm
[23:05] <Randomskk> not sure
[23:05] <nigelvh> No.
[23:06] <Randomskk> I know icom have just-released or something a sexy 7k replacement with a touch screen
[23:06] <chrisstubbs> Haha this is a great one lunar. The FT-817 just seemed like a great all rounder, and a reasonable price
[23:06] <fsphil> have they done an sdr yet?
[23:06] <chrisstubbs> the bloke in the shop made a great job of selling me it at least!
[23:06] <Randomskk> that would destroy their market :P
[23:06] <nigelvh> Yeah, no, this is just a 706. Their mobile all band/all mode.
[23:06] <Randomskk> the ic7000 has so much processing power in it it's silly
[23:06] <fsphil> but yes, I wouldn't get rid of my 817 either
[23:06] <Randomskk> and they use it for what
[23:06] <Lunar_Lander> xD
[23:06] <fsphil> it's great for messing around with digital modes
[23:07] <Randomskk> non adjustable RTTY filter
[23:07] <Lunar_Lander> EggsBox 360
[23:07] <craag> Randomskk: ic706 is the old ic7000
[23:07] <mfa298> chrisstubbs: I've got a TS-2000 and an FT-817 but I probably use the 817 more as it's easy to chuck in the car.
[23:07] <craag> Without sooo much dsp
[23:07] <nigelvh> I have an FT-8900 home VHF/UHF and an FT-950 for home HF
[23:08] <craag> I've got an FT-101ZD for home hf :D Not very useful for hab.
[23:08] Action: mfa298 suspects he knows what Lunar's been watching.
[23:08] <fsphil> if they ever do another 817, I hope it has a built-in tuner
[23:08] <fsphil> it would be the ultimate HF rig
[23:08] <Randomskk> tuners are huge though
[23:08] <nigelvh> Yeah
[23:08] <fsphil> true
[23:08] <Elijah_> how do you like the TS-2000?
[23:08] <nigelvh> You can get fairly small tuners that work well with the 817
[23:08] <Elijah_> I was thinking of getting one of those
[23:08] <fsphil> the one I have is the same size at the 817
[23:08] <fsphil> actually slightly bigger
[23:09] <nigelvh> Here's a post a buddy of mine made on modding a small autotuner to use batteries to work easier with his 817
[23:09] <nigelvh> http://www.programotron.com/wordpress/?p=163&utm_source=rss&utm_medium=rss&utm_campaign=z100-autotuner-internal-battery-mod
[23:09] <mfa298> Elijah_: I've liked the TS-2000 as an all rounder, but it's a lot bigger move around
[23:10] <Elijah_> Yeah, I'd mostly want it for a base station
[23:10] <mfa298> unless you've got an antenna thats a close match you'll want a seperate ATU as the built in one doesn't match that well.
[23:10] <nigelvh> Most internal tuners can't match much more than something at 3:1
[23:11] <nigelvh> For my HF work at home, I use an SG-230
[23:11] <nigelvh> http://www.sgcworld.com/230ProductPage.html
[23:11] <chrisstubbs> I have a watson w-7900
[23:11] <fsphil> that looks like a brick
[23:11] <chrisstubbs> No idea how it compares to others
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[23:11] <mfa298> and being bigger with lots of buttons it's a lot easier to find the functions you want quickly.
[23:12] <fsphil> my tuner has this annoying habit of auto-tuning even after it's tuned
[23:12] <nigelvh> The SG-230 has a HUGE tuning range. Drive a ground stake and connect to a body panel on your car, sure it will tune.
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[23:13] <Elijah_> lol
[23:14] <fsphil> I think someone here once mentioned tuning a bridge
[23:14] <nigelvh> The 230 could probably do it pretty easily.
[23:15] <fsphil> if the weather improves I need to build a new HF antenna
[23:15] <nigelvh> I've been continually suprised at what it manages to make work.
[23:15] <fsphil> not been on those bands in ages
[23:15] <Elijah_> Yeah, I'd like to be able to play with the digital modes more
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[23:25] <chrisstubbs> Im off guys, night!
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[23:26] <nigelvh> Afternoon KT5TK
[23:26] <KT5TK_QRL> Hi nigelvh
[23:27] <KT5TK_QRL> Just received the parts.. Will solder tonight
[23:27] <nigelvh> I look forward to hearing about how it works.
[23:28] <KT5TK_QRL> I don't think I'll have trouble with the hardware. Coding the trx chip will be more challenging
[23:28] <nigelvh> Yeah?
[23:28] <KT5TK_QRL> There are almost no examples
[23:29] <KT5TK_QRL> Just need to rely on the documentation from Si themselves
[23:30] <KT5TK_QRL> I was playing with WSPRnet yesterday
[23:31] <nigelvh> Yeah? I've run WSPR a time or two, neat stuff.
[23:31] <KT5TK_QRL> Thinking about ways to use it for transatlantic long distance position reporting
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[23:32] <nigelvh> I do believe WSPR supports extended grid locator positions.
[23:32] <Darkside> i think you can get about 500m accuracy out of it
[23:32] <Darkside> maybe a bit less
[23:32] <KT5TK_QRL> The only draw back I see is that the locator is only 4 digits long in the transmission
[23:32] <Darkside> KT5TK_QRL: you could use other fields to get more accuracy
[23:32] <Darkside> like, use the transmit power field or something
[23:33] <Darkside> go look at the spec for it
[23:33] <Darkside> there are a few fields that you might be abel to use
[23:33] <nigelvh> The basic packet only does four digits, you can do an extended grid locator to get more.
[23:33] <KT5TK_QRL> would be an idea
[23:33] <Darkside> there are other modes that would be suitable too though
[23:33] <Darkside> perhapsJT65
[23:33] <KT5TK_QRL> The time accuracy could be done with the onboard gps
[23:33] <nigelvh> WSPR has the convenience of having a listener base.
[23:33] <Darkside> you only need to start it at the right time
[23:34] <Darkside> and thats pretty easy to do
[23:34] <KT5TK_QRL> I'm looking for some well established listener network
[23:34] <Darkside> the other trick is getting the frequency shift accuracy up
[23:34] <KT5TK_QRL> WSPRnet seems to be quite populated
[23:34] <Darkside> i've been working on a DDS based HF data TX
[23:34] <Darkside> and it can't do WSPR
[23:34] <Darkside> doen't have the frequency accuracy for it
[23:34] <Darkside> you need accurate 1.46Hz shifts
[23:34] <Darkside> i guess i could do it if i used a VCXO as the master clock
[23:35] <KT5TK_QRL> for a time of 2 minutes though
[23:35] <nigelvh> WSPR can handle a bit of drift.
[23:35] <KT5TK_QRL> That's what I was planing on
[23:36] <Darkside> nigelvh: only a bit
[23:36] <Darkside> but tbh it shouldnt be a problem
[23:36] <KT5TK_QRL> There was some Si560 based microcontroller WSPR beacon published somewhere
[23:36] <Darkside> yeah i think there was
[23:36] <Darkside> Si570 is a bit of a crappy chip to do it with
[23:36] <Darkside> square wave output
[23:36] <Darkside> but you can filter it..
[23:37] <Darkside> actually
[23:37] <Darkside> use a Si570 and feed the output into a Class-E amp
[23:37] <Darkside> the Class-E amp will give you some frequency selectivity, then you get even more from the output filter
[23:37] <Darkside> and you get high efficiency
[23:37] <KT5TK_QRL> Yes, that should work
[23:38] <Darkside> shouldn't be too hard to do
[23:38] <Darkside> you just need to find out what the Si570 idles at
[23:38] <Darkside> high or low
[23:38] <Darkside> because if you get that wrong, you lock the class-e amp's FET on an dblow it up :P
[23:38] <KT5TK_QRL> :)
[23:38] <Darkside> i'm doing something similar to this with an AD9834
[23:39] <Darkside> but that doesn't have the frequency resolution to do WSPR sadly
[23:39] <Darkside> can do lots of other modes tho
[23:39] <KT5TK_QRL> The DDS should have some oscillator crystal. Replace that with a VCXO
[23:40] <Darkside> yeah
[23:40] <Darkside> thats what i'm thinking about
[23:40] <KT5TK_QRL> Then control the VCXO accurately with a DAC from the micro
[23:40] <Darkside> i'm just using a 50MHz master oscillator
[23:41] <Darkside> but i could replace that with some kind of VCXO
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[23:42] <KT5TK_QRL> http://www.mouser.com/ProductDetail/Crystek/CVHD-950-50000/?qs=%2fha2pyFadujGpYX2JCkpcOlmlDi8l6Ogw8FvG%252bWAduo%3d
[23:43] <Darkside> hmm
[23:43] <KT5TK_QRL> unless you could use a slightly different standard frequency
[23:44] <Darkside> i can, but i can't go too low
[23:44] <Darkside> 50mhz is the reccomended point
[23:44] <Darkside> those ones look good
[23:45] <Darkside> 3.3v though, but it should be ok
[23:45] <Darkside> eek $36
[23:46] <KT5TK_QRL> check digikey also
[23:47] <Darkside> yeah, ther'll be a few options
[23:47] <Darkside> but i'm not too concerned with running WSPR atm
[23:47] <Darkside> i need more throughput than WSPR can do :P
[23:47] <KT5TK_QRL> live digital video?
[23:48] <Darkside> nah
[23:48] <Darkside> not on hf lol
[23:48] <Darkside> the board was designed to do PSK
[23:49] <Darkside> so frequency precition wasnt really a problem
[23:49] <KT5TK_QRL> WSPR should be a backup for regions where VHF/UHF tracking doesn't work anymore.
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[23:49] <Darkside> mm
[23:49] <Darkside> i was thinking of doing HF APRS on this board
[23:50] <Darkside> on 30m
[23:50] <Spoz> morning
[23:50] <Darkside> hi Spoz
[23:50] <Spoz> got my arduino mini so I should have a tracker working shortly :)
[23:50] <Darkside> awesome
[23:50] <KT5TK_QRL> PSK31 worked fine on N0D, but the listeners were not clever enough to use dl-fldigi and forward the data to habhub
[23:51] <KT5TK_QRL> WSPRnet is already there.
[23:52] <Darkside> hence APRS
[23:52] <Darkside> :P
[23:52] <Darkside> not as reliably as WSPR
[23:52] <Darkside> reliable*
[23:52] <Lunar_Lander> nigelvh, KT5TK_QRL newest version of the board http://s.gullipics.com/image/p/f/h/5yvnbl-kj3bl0-zngm/IMG6522.jpeg
[23:52] <Darkside> but if you want reliable, you use a modified SPOT tracker
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[23:53] <KT5TK_QRL> what modification?
[23:53] <Darkside> replace the GPS unit :P
[23:53] <Darkside> or feed in other data
[23:53] <Darkside> someone here had figured out how to send in arbitrary data
[23:53] <Lunar_Lander> gave the DS18B20 a servo wire
[23:53] <Darkside> so you could feed in gps positions from another gps, that works >18km
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[23:54] <Darkside> but yeah, WSPR would be good as a way of giving coarse positions on a transatlantic/pacific flight
[23:54] <KT5TK_QRL> Lunar_Lander: Nice
[23:55] <KT5TK_QRL> Darkside: yes, that's an obvious change. I thought you wanted to hack into the satellite ;)
[23:55] <Lunar_Lander> XD
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[23:58] <KT5TK_QRL> Lunar_Lander: Do you actually use the micro SD for logging?
[23:58] <Lunar_Lander> yes
[23:58] <KT5TK_QRL> sensor data and gps?
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[00:00] --- Tue Jan 15 2013