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[00:03] Nick change: SpeedEvil1 -> SpeedEvil
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[00:07] <Laurenceb> SpeedEvil: £250 then?
[00:09] <SpeedEvil> ?
[00:09] Action: SpeedEvil suffers context failure.
[00:09] <Laurenceb> for the n900
[00:09] <Laurenceb> sorry
[00:09] <SpeedEvil> ah
[00:09] <SpeedEvil> yes
[00:09] <SpeedEvil> ish
[00:10] <Laurenceb> not that bad then
[00:10] <SpeedEvil> paid for by strict diet to a degree, which is another benefit.
[00:10] <Laurenceb> £500 is a lot
[00:10] <SpeedEvil> es
[00:14] <Laurenceb> how good is the gps?
[00:15] <SpeedEvil> It has an open issue with wierdnesses about lock times.
[00:15] <SpeedEvil> When you let it connect to the net, it's always fast
[00:16] <SpeedEvil> when you don't, it can sometimes fail to get locks.
[00:16] <SpeedEvil> this doesn't seem to be a hardware issue.
[00:16] <SpeedEvil> as to accuracy - very good.
[00:17] <SpeedEvil> It gets quite acceptable traces in a trouser pocket, when driving.
[00:17] <Laurenceb> yeah the nokia page hints at that issue
[00:17] <SpeedEvil> http://www.openstreetmap.org/user/SpeedEvil/traces/584852
[00:18] <Laurenceb> any idea on the hardware it uses?
[00:18] <Randomskk> hm. I can listen to my rfid card on my radio
[00:18] <Randomskk> though a dipole for 125khz is like over a kilometer long, not going for that route
[00:18] <SpeedEvil> Laurenceb: seemingly a TI GPS navilink 5 - on which there are no details
[00:20] <Randomskk> ooh. ofcom are making 60ghz license-free
[00:20] <SpeedEvil> makes sense.
[00:20] <SpeedEvil> As it's absorbed within 1km or so
[00:20] <Randomskk> for next-gen wifi I guess
[00:21] <Randomskk> woah. but they say you need to have a 30dBi antenna connected
[00:21] <Randomskk> e.g. it has to be really directional
[00:22] <SpeedEvil> Interesting.
[00:22] <Laurenceb> SpeedEvil: not much data avaliable on that
[00:22] <SpeedEvil> 60ghz is in the range of small-scale steerable antennas.
[00:22] <Randomskk> 6.8GHz bandwidth over the entire band
[00:22] <SpeedEvil> actually - 30dbi is probably over what you can get in a handset
[00:22] <Laurenceb> cya all
[00:23] <SpeedEvil> wave
[00:23] <Randomskk> seeya
[00:23] <Randomskk> yup, definitely 30dbi
[00:23] <Randomskk> I think it's designed more for fixed wireless links
[00:24] <SpeedEvil> insane.
[00:24] <Randomskk> oh, and you can't be within 6km of three specific sites
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[00:25] <Randomskk> 57d21'3.6",-7d23'36.6"; 51d37'16.8",-4d58'21"; 52d38'1.8",0d36'22.8"
[00:25] <Randomskk> 10dBm output power max, 55dBm EIRP, 30dBi minimum gain
[00:30] <SpeedEvil> makes little sense.
[00:31] <Randomskk> yea. no way would that work for wifi style devices
[00:31] <SpeedEvil> that's what - 25dBm 800mW?
[00:31] <Randomskk> I think it's literally just for two fixed points to communicate wirelessly at high speed
[00:32] <Randomskk> you could probably get a good gigabit connection at pretty significant distances
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[10:17] <MikeMc> morning
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[11:21] <malgar> hello
[11:21] <malgar> do you have a php code that manage NMEA code sent through HTTP POST or GET?
[11:30] <n900evil> as I understand no
[11:31] <n900evil> the tracker never sees nmea
[11:31] <malgar> how do you send the data?
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[11:31] <malgar> sms?
[11:31] <n900evil> no
[11:32] <malgar> i remember the first launches of pegasus
[11:32] <malgar> since then i haven't checked your progresses
[11:32] <n900evil> narrow shift fm at433mhz 50BPS
[11:32] <malgar> ah ok
[11:33] <malgar> i remember when you used the cell phone
[11:33] <n900evil> Good for over 400km line of sigh
[11:33] <n900evil> t
[11:33] <malgar> ok :) a lot better
[11:33] <n900evil> cellphones do't let you track tho
[11:34] <n900evil> and if it lands in a reception hole, screwed.
[11:35] <malgar> yes, but now i would need for a terrestrial live tracking so it isn't a problem
[11:36] <Laurenceb> we've used 300bps as well
[11:36] <Laurenceb> the range is usually limited by line of sight
[11:37] <malgar> ok
[11:38] <n900evil> check wiki
[11:38] <malgar> tnx
[11:39] <n900evil> type problem on mobile
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[11:48] <juxta> hi all
[11:49] <juxta> DanielRichman: you around? I was actually looking for you ;p
[11:49] <DanielRichman> hello juxta, I'm here :)
[11:50] <juxta> great :)
[11:50] <juxta> I remember reading on your blog (I think?) about phones which actually brought out real uart's rather than virtual ones
[11:50] <DanielRichman> Yup
[11:50] <juxta> sweet - don't suppose you can suggest any models?
[11:51] <juxta> hehe
[11:51] <DanielRichman> t68i
[11:51] <juxta> hmm, anything else?
[11:51] <juxta> we seem to be fresh out of those around here
[11:51] <MikeMc> Hi Juxta
[11:52] <juxta> hey MikeMc, how's things?
[11:52] <DanielRichman> juxta, typically the old phones do
[11:52] <juxta> ah wait, found one on ebay
[11:52] <juxta> but it's $50
[11:52] <juxta> tad steep
[11:52] <juxta> considering my intended use
[11:52] <DanielRichman> juxta, I imagine you have a mobile that only exposes a USB connection?
[11:53] <juxta> yeah, most these days are just USB with a virtual serial I figure
[11:55] <n900evil> N900 with fm txon the audio out
[11:55] <russss> pricey, though
[11:56] <juxta> n900evil: hmm?
[11:56] <n900evil> hmm. pity onboard fm xmit is on.y 88-108
[11:56] <n900evil> not serious :)
[11:56] <n900evil> the keyboard is surprisingly ok
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[12:00] <rharrison> hi all
[12:01] <rharrison> any launches planned at the moment or is all quiet ATM
[12:01] <juxta> hmm, the motorola c168 supposedly works well
[12:01] <n900evil> quite
[12:02] <rharrison> Hey juxta how is your payload going
[12:04] <juxta> hey rharrison, pretty good thanks, basically ready for launch :)
[12:04] <juxta> got my balloons, going to get some hydrogen soon
[12:04] <juxta> sorry, helium
[12:04] <DanielRichman> It's more fun with H2 I imagine ;P
[12:04] <juxta> also going to work on onboard landing prediction based on jcoxon's code I think
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[12:06] <rharrison> I think the landing pred. code is steves (rocketboy) I could be wrong
[12:07] <rharrison> juxta cool so you have the gps and the radio bit working fine then
[12:07] <juxta> yep yep :)
[12:08] <rharrison> DanielRichman: where you up too on launch?
[12:09] <rharrison> Hope you're going to get something in the air over the xmas hols
[12:09] Action: Laurenceb has most used old ericsson phones from ebay
[12:10] Action: juxta shoots self
[12:10] <juxta> horrible customers...
[12:10] <DanielRichman> rharrison, I've got a power drill here right now; about to get stuck into this Al tube
[12:12] <Laurenceb> put some jam on it first
[12:14] <juxta> Laurenceb, jam?
[12:14] <Laurenceb> before he eats the tube
[12:15] <juxta> I prefer butter
[12:15] <juxta> helps it slip down
[12:23] <DanielRichman> Hmm. I'm heatshrinking heatshrink tube onto a 4mm element, then inserting it into a boom. I have 4mm, 4.5, 5mm and 5.5 metal drills to use. What one is the best bet?
[12:24] <juxta> 4mm I'd say DanielRichman
[12:24] <juxta> but the heatshrink may scrape off with time
[12:24] <SpeedEvil> try iy
[12:24] <SpeedEvil> t
[12:24] <SpeedEvil> 4.5 or 5 I suspect
[12:24] <MikeMc> Hey Juxta do you think we might be able to track your flight with a large enough Yagi ?
[12:24] <juxta> i've seen a similar setup done by pushing the elements through some of those wall plugs you put in brick walls to take screws, then drilling holes to suit those
[12:25] <juxta> MikeMc: from the UK? unfortunatley the curvature of the earth will stop you :)
[12:26] <juxta> the middle type here is what I mean:
[12:26] <juxta> http://www.lifting-anchor.com/Fixing-Systems/WALL-PLUG/WALL-PLUG.jpg
[12:26] <DanielRichman> I'll try 4.5mm
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[12:27] <MikeMc> really?!
[12:28] <juxta> heh
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[15:19] <DanielRichman> Power Drill + Titanium Drill bit + Spirit Gauge w. Double Sided Sticky Tape = nice, straight holes in the antenna boom: complete
[15:19] <DanielRichman> bbl
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[15:24] <SpeedEvil> it's a titanium nitride coated drill
[15:24] <SpeedEvil> that's what the gold colour is
[15:24] <SpeedEvil> actual titanium would suck as a drillbit
[15:24] <SpeedEvil> It's not good for knives.
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[16:34] <Randomskk> hahaha yess
[16:34] <Randomskk> internet in the middle of devo
[16:34] <Randomskk> gprs speeds maybe, but regardless!
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[16:44] <SpeedEvil> :)
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[20:16] <jcoxon> evening all
[20:16] <Randomskk> yo
[20:16] <Randomskk> I am on gprs internet tethered through my phone :D it's so slow, but better than I've ever had in Devon
[20:17] <jcoxon> hehe, battery draining though
[20:18] <SpeedEvil> 3G seems much worse than gprs for IRC
[20:18] <SpeedEvil> as in ~5h or so
[20:18] <Randomskk> laptop is plugged in and phone connected to aptop so it7s all charging
[20:18] <Randomskk> trying to sort out getting to 26c3
[20:19] <Randomskk> flights are so expensive when you want them in three days time
[20:19] <SpeedEvil> Just buy some helium, start the predictor...
[20:19] <Randomskk> :p
[20:20] <SpeedEvil> 26*?
[20:21] <Randomskk> chaos communications congress, run by the ccc
[20:21] <Randomskk> in berlin
[20:21] <SpeedEvil> ah
[20:21] <SpeedEvil> Take the train!
[20:21] <Randomskk> http://events.ccc.de/congress/2009/wiki/
[20:21] <SpeedEvil> For more fail.
[20:21] <Randomskk> train is even more expensive and slower
[20:23] <Randomskk> should have really thought about going earlier when flight prices were still cheap
[20:24] <SpeedEvil> Always the way.
[20:25] <Randomskk> I just saw soeone mention 26c3 in twitter and thought oooh
[20:26] <Randomskk> but actually organising a surprise trip to germany is not that cheap
[20:26] <SpeedEvil> I assume eurostar+car is worse?
[20:26] <Randomskk> I don't have a car
[20:26] <Randomskk> so yes
[20:27] <Randomskk> and I think a taxi would probably be pretty costly
[20:28] <jcoxon> ooh also the eurostar is pretty broken
[20:29] <SpeedEvil> jcoxon: eurostar was never broken - the trains - I thought - the car service
[20:29] <SpeedEvil> or have I gotten the name of the car service provider wrong
[20:29] <jcoxon> i think its rolled over
[20:29] <SpeedEvil> yeah - overloaded due to traffic
[20:30] <SpeedEvil> but not actually stalled due to frozen snow inside the electrical compartment melting in the tunnel
[20:30] <jcoxon> apparently its running again
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[21:12] <Laurenceb> http://www.b3tards.com/u/140f53149919acfbe5b4/pizza.png
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[21:49] <gordonjcp> <groan>
[21:51] <DanielRichman> </groan>
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[22:11] <MikeMc> evening all
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[23:21] <juxta> hi all
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[23:32] <Laurenceb> http://en.pudn.com/downloads64/sourcecode/embed/detail229773_en.html
[23:32] <Laurenceb> looks useful
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[23:48] <Laurenceb> jcoxon: I was thinking about level sensing
[23:48] <Laurenceb> it might be worth making a capacitive sensor
[23:49] <juxta> yeah, there's some code floating around for using 2 pins on an AVR for capacitance measurement
[23:50] <SpeedEvil> Or you can do the extreme step of using an capacitance to digital adc
[23:52] <jcoxon> Laurenceb, what about instead using a perastaltic pump and measuring revs?
[23:52] <jcoxon> as we know the volume shifted
[23:52] <Laurenceb> hmm yeah thats a point
[23:53] <Laurenceb> quadrature encoder
[23:53] <SpeedEvil> naah
[23:53] <SpeedEvil> just one is fine
[23:53] <SpeedEvil> don't need to know if it moves backwards
[23:53] <Laurenceb> yeah
[23:54] <jcoxon> am on the case
[23:54] <Laurenceb> is there a shaft sticking out we could attach it to?
[23:54] <jcoxon> there will be - am waiting for the pump to arrive
[23:54] <jcoxon> i've got some metal shafts and a photogate
[23:55] <jcoxon> also got some microswitches which could be activated by a cam
[23:55] <SpeedEvil> or just a teeny magnet glued to the end, and Mr Hall.
[23:55] <Laurenceb> good idea
[23:55] <Laurenceb> or glue it onto the pump mechanism
[23:56] <jcoxon> so thats teh plan for BH4
[23:56] <jcoxon> just waiting for some more bits to arrive
[23:57] <Laurenceb> 0
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[23:58] <Laurenceb> 1
[23:59] <jcoxon> oh dear Laurenceb
[00:00] --- Thu Dec 24 2009