highaltitude.log.20110814

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[00:37] <nickolai> hey all
[00:37] <NigeyS> ello
[00:37] <nickolai> wouldn't this be lovely:http://habhub.org/predict/#!/uuid=1e9d66d3cf11cc9bb54d111623d91e6ba154314a
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[00:38] <nickolai> you'd hardly need a chase team, just watch it from the launch site...
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[00:39] <NigeyS> blimey thats a weird 1, almost looks like the Pi sign :|
[00:52] <nickolai> ur right it does!
[00:59] <SpeedEvil> Mmmm. Pi.
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[02:13] <akawaka> man, i wish we could find flightpaths like that
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[02:13] <Professor> g'day all
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[02:19] <nickolai> akawaka, it's a few days in advance so it will most likely change
[02:19] <nickolai> here's an even better one: http://habhub.org/predict/#!/uuid=b6472790949c7ccf74d171b3873fa2b6acdcdd29
[02:21] <nickolai> it's predicting balloon burst at 8km followed immediately by a landing!
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[04:46] <defy> does anyone know where to get a free worldwide airport/navaid database?
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[05:06] <SpeedEvil> openstreetmap
[05:06] <SpeedEvil> perhaps
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[06:55] <SamSilver> helloooo dave
[06:56] <daveake> helloooo Sam
[06:57] <natrium42> ... ok/
[06:57] <SamSilver> sam = real name David
[06:57] <daveake> helloooo David
[06:57] <daveake> :)
[06:58] <natrium42> hello Real Name David :)[C[C[C[C[C[C
[06:58] <SamSilver> daveake: how far along with the planning of next flight
[06:59] <daveake> Coming along ... have been buying bits for the pico payload.
[07:00] <daveake> Not sure yet whether the next one will be basically the same as my first (1kg-ish with cameras) or a lightweight Buzz Lightyear - inspired one.
[07:00] <SamSilver> I am doing well towards my first week in december launch
[07:00] <daveake> I've ordered balloons for both options
[07:00] <daveake> Where will you launch from?
[07:00] <SamSilver> buzz looks fit to go saw pic of him the other day
[07:00] <daveake> Oh, he's ready alright :)
[07:01] <daveake> Went out yesterday to buy some bits for his spaceship :-)
[07:02] <daveake> It'll be a polystyrene ball with the computer, batteries etc inside, plus bits to make it look like a flying saucer
[07:02] <SamSilver> I have a "groovy" launch site
[07:02] <SamSilver> can't seem to find the google map I saved of it
[07:03] <daveake> The computer arrived yesterday - Arduino Mini Pro.
[07:04] <daveake> Waiting on the 'chute
[07:05] <daveake> i bought 2 poly balls of different sizes, and wondered why the larger one was only slightly heavier than the smaller one. 'cos it's hollow!
[07:06] <daveake> I think the smaller (120mm) one will do. I need to chop it in half and hollow it out for the bits.
[07:06] <SamSilver> Poly ball = ??
[07:07] <daveake> Foal polystyrene
[07:07] <daveake> Foam even
[07:07] <daveake> 28g which is a fair proprtion of the total target!
[07:08] <SamSilver> I got some spray foam to do some testing with yesterday
[07:08] <daveake> I'm aiming for something like this - http://www.clipartoday.com/_thumbs/005/002/Clipart/Transportation/Air_Space/Space_Flight/science_fiction_117630_tnb.png
[07:08] <SamSilver> going to make some moulds
[07:08] <SamSilver> UFO??
[07:09] <SpeedEvil> With LEDs?
[07:09] <daveake> Let me know how dense that works out. I have a can or two here
[07:09] <SamSilver> way kewl
[07:09] <daveake> Yes, LEDs :)
[07:09] <daveake> Everyone asks that!
[07:09] <SpeedEvil> daveake: What about an eerie howling sound?
[07:09] <daveake> Piezo buzzer
[07:09] <daveake> Done
[07:10] <daveake> It's only one note though - might try with a piezo transducer and PWM control :)
[07:11] <SamSilver> et come home
[07:11] <daveake> :)
[07:13] <daveake> I bought some foam sheets in Staples to make the disc from. The package even had a UFO picture on it - see http://www.docrafts.com/article/craftplanetclub :-)
[07:16] <SamSilver> the aliens look on the cute side
[07:17] <daveake> Buzz can sort them out
[07:18] <SamSilver> lol
[07:19] <SamSilver> I found my launch site http://maps.google.co.za/maps?hl=en&ll=-29.552329,29.979115&spn=0.009277,0.019205&t=h&z=16
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[07:20] <SamSilver> the field above the "sign"
[07:20] <daveake> You've got trees and lakes to aim at for the landing then :)
[07:21] <SamSilver> predictor says today would be the Indian Ocean
[07:21] <SamSilver> for landing
[07:21] <daveake> Even better
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[07:21] <SamSilver> heading for shower
[07:21] <SamSilver> bbl
[07:27] <earthshine> o/
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[07:43] <Upu> morning all
[07:47] <daveake> morning
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[07:50] <earthshine> morning
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[08:00] <Upu> morning Rob
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[08:03] <number10> morning
[08:07] <number10> I did not know there was going to be a ballon release yesterday - strangley enough I went to bury st edmunds
[08:20] <LazyLeopard> Hmmm... Didn't see any launch announcements...
[08:20] <daveake> I was hoping to help track, but it's Mrs Dave's birthday today and she wanted us to go shopping :(
[08:21] <number10> happy birthday Mrs Dave
[08:21] <daveake> I'll pass that on :)
[08:21] <eroomde> morning
[08:22] <number10> morning
[08:22] <daveake> "
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[08:50] <eroomde> this new mac app store is a dangerous thing
[08:50] <eroomde> there's a constant trickle of £3 here, £5 there going out
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[08:59] <number10> has anyone read this http://www.amazon.com/Scientific-Ballooning-Applications-Exploration-Stratosphere/dp/0387097252/ref=sr_1_18?s=books&ie=UTF8&qid=1313311102&sr=1-18
[09:00] <fsphil> morning all!
[09:04] <eroomde> number10: nope not seen it
[09:04] <eroomde> looks potentially interesting
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[09:08] <fsphil> woo, the suns out. didn't expect that
[09:09] <mattltm> Mornin fsphil :)
[09:14] <Darkside> ok back at the london hackerspace
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[09:27] <fsphil> aaah nothing beats toast for breakfast
[09:28] <fsphil> oooh whatcha up to there Darkside
[09:28] <Darkside> not much atm lol
[09:28] <Darkside> making use of the internet
[09:28] <Darkside> and drinking Club0Mate
[09:28] <Darkside> Club-Mate*
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[09:29] <fsphil> noice
[09:35] <Darkside> http://i.imgur.com/W9Eag.jpg
[09:39] <fsphil> haha
[09:39] <fsphil> bad for you :p
[09:39] <Darkside> it doesnt have much sugar
[09:39] <fsphil> who's the guy pictured on the wall?
[09:39] <Darkside> which is interesting
[09:39] <Darkside> babbage
[09:40] <fsphil> ah! didn't recognise him
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[09:43] <daveake> Whoops .. http://www.dailymail.co.uk/news/article-2025795/Bristol-International-Balloon-Fiesta-Crew-escape-unscathed-balloon-crashes-house.html
[09:44] <Darkside> loooool
[09:47] <fsphil> it was sunny here 10 minutes ago, now it's windy and wet. what's up with that? stupid weather
[09:48] <Darkside> welcome to the UK?
[09:48] <Darkside> >_>
[09:49] <Darkside> http://www.wired.com/autopia/2011/08/inbloon/
[09:50] <fsphil> "the view from 36 km offers essentially the same viewing experience" ... yea but without the weightlessness!
[09:51] <Darkside> heh
[09:52] <daveake> Was reading earlier about tgis guy - http://en.wikipedia.org/wiki/Larry_Walters
[09:52] <Darkside> http://steampunk.kbsm.org/
[09:52] <Darkside> ooh i should go
[09:55] <fsphil> "A man can't just sit around." -- best answer ever
[09:55] <daveake> Loved that!
[09:56] <daveake> So he found just about the maddest thing to do, whilst still sitting :)
[09:57] <fsphil> sad end unfortunately
[09:57] <daveake> "We know he broke some part of the Federal Aviation Act, and as soon as we decide which part it is, some type of charge will be filed" lol
[09:58] <Darkside> jeez he ended up killing himself
[09:59] <daveake> Yep.
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[10:11] <daveake> Mythbusters tried the Lawnchair Larry thing - http://www.youtube.com/watch?v=NC-Km7aUjgc
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[10:40] <Darkside> eroomde: http://habhub.org/predict/#!/uuid=99b5965e68f5a6174994d621f4e2ac3a5859de2c
[10:40] <Darkside> i don't think i'm getting my payload back :P
[10:43] <SamSilver> Darkside: eroomde has sailing experience well kind of
[10:43] <Darkside> hahahaha
[10:43] <Darkside> i'm ok if we loose it
[10:43] <Darkside> i'll be a bit sad, but then i'll get over it
[10:43] <Darkside> plus i'm not intending to use the 70cm module in australia anyway
[10:44] <fsphil> you can join the ranks of the elite few who's dumped a payload in the north sea
[10:44] <Darkside> hahaha
[10:44] <Darkside> yup
[10:44] <SamSilver> in your last pic from hackerspace I see that a small party balloon was next to the Club-Mate
[10:44] <Darkside> yes
[10:44] <Darkside> only filled with air though
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[11:28] <eroomde> SamSilver: since when do i have sailing experience?
[11:28] <SamSilver> ballast counts ;-)
[11:29] <eroomde> Darkside: has that guy been there all night in the club-mate vid?
[11:31] <Darkside> yup
[11:32] <Darkside> a bunch of them stayed overnight
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[11:34] <eroomde> hmm
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[13:02] <nickolai> holy crap, that larry walters guy shot himself
[13:02] <nickolai> what an awful ending to such an inspirational story
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[14:24] <NigeyS> ping RocketBoy
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[15:03] <Darkside> eroomde: what DAC were you going to use?
[15:03] <Darkside> and what refresh rate, etc does it have
[15:03] <Darkside> (well, sample rate)
[15:04] <NigeyS> ello Darkside
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[15:16] <Darkside> hey NigeyS
[15:16] <Darkside> i'm working on a daugherboard to the Forebrain ARM thingo
[15:16] <Darkside> just working out component layout atm
[15:17] <NigeyS> ohh sweet
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[16:49] <Darkside> http://imgur.com/a/R7IU8
[16:56] <Randomskk> looks like a pretty thin microstrip for 50 ohms. is that just a random width?
[16:56] <Darkside> yeah
[16:56] <Darkside> its not intended to be a microstrip
[16:56] <Darkside> tbh at that short a distance its not going to matter that much
[16:57] <Darkside> i probably have enough board space to make it a real microstrip
[16:57] <Randomskk> you could just make it a bit thicker and get away with it really
[16:57] <Randomskk> but yea, it's probably short enough to not really care
[16:58] <Darkside> ima go get some food
[16:58] <Darkside> then ill be back..
[17:01] <NigeyS> looks good Darkside
[17:10] <kristianpaul> talking about gnss/gps i'm wondering of a pull-in algortyhm easier to understand that the one embedded in osgps..
[17:10] <kristianpaul> may be i need to learn about PLL implemtation in C..
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[17:32] <fsphil> uuuur tooo much fooood
[17:37] <cuddykid> hmmm.. can someone shed some light on this.. for the "antenna" connection on these easyradios it says 50ohm load - how would I go about achieving that with an antenna?! Stick a 50ohm resistor in series?
[17:39] <SpeedEvil> Antennas have what is known a s 'radiation ressitance'
[17:39] <SpeedEvil> Depending on the design of hte antenna, it can exactly match 50 ohms
[17:39] <SpeedEvil> Or 75 ohms, or some other figure
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[17:45] <BrainDamage> basically, you want your cable. amplifier impedance, and antenna to have all the same rating, if they don't bad things will happened, like wave reflections and as conseguence, not all available power will be transferred around
[17:46] <SpeedEvil> Or the transmitter heating up or stopping working.
[17:46] <SpeedEvil> (not really an issue at 10mW)
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[18:03] <cuddykid> ahh right, thanks :D
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[18:32] <fsphil-laptop> haha, fldigi works at 2000 baud
[18:32] <Darkside> wut
[18:32] <Darkside> seriously
[18:33] <fsphil-laptop> yea! just transmitted an image on 2m FM at 2000 baud
[18:33] <Darkside> bahahaha ok
[18:33] <fsphil-laptop> ft857 transmitting, funcube dongle+spectravue receiving
[18:33] <Darkside> can the NTX2s handle 2000 baud?
[18:33] <fsphil-laptop> that I'm going to try next
[18:33] <Darkside> maybe if you do massive spacing
[18:33] <Darkside> and use the FCD to receive
[18:34] <fsphil-laptop> fldigi won't like it, with the 4khz bandwidth limit
[18:34] <fsphil-laptop> 2400 baud didn't work
[18:35] <hibby> gnarly
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[18:36] <fsphil-laptop> wonder if gnuradio could be used instead of fldigi
[18:37] <fsphil-laptop> should be able to handle lots of bandwidth
[18:37] <chris_99> the USRP is amazingly expensive though
[18:37] <fsphil-laptop> with the funcube dongle though
[18:37] <fsphil-laptop> got about 80khz to play with
[18:38] <chris_99> oh yeah, is that for sale at the moment
[18:38] <fsphil-laptop> yea think so
[18:38] <chris_99> i think they use some kind of TV (de)modulator
[18:38] <chris_99> if i recall
[18:39] <Darkside> Elonics something
[18:39] <Darkside> its a broadband tuner
[18:39] <Darkside> tunes from 55MHz to 1.7GHz (with a few gabs), giving Zero-IF output
[18:39] <Darkside> i've been looking for something similar for HF
[18:40] <Darkside> theres one company that sells one - Mirics, but I can't get any samples out of them
[18:41] <fsphil-laptop> that would be nifty
[18:41] <Darkside> ugh , 3g going in and out
[18:42] <hibby> welcome to the uk
[18:42] <Darkside> yaaaaay
[18:51] <Darkside> ugh
[18:51] <Darkside> yeah going offline until i get home...
[19:03] <fsphil-laptop> typically, the crystal I'm using means I can't do a baud rate of 2000
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[19:14] <fsphil-laptop> 1200 baud works perfectly though
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[19:49] <fsphil-laptop> wow, 2400 baud working
[19:49] <hibby> \m/
[19:50] <hibby> who you sending to
[19:50] <hibby> youself?
[19:50] <fsphil-laptop> yea
[19:50] <fsphil-laptop> across the room
[19:50] <hibby> radio loner
[19:50] <fsphil-laptop> yes :(
[19:50] <hibby> lolol
[19:51] <fsphil-laptop> the only other people involved are those who can no longer lock their cars remotely
[19:52] <hibby> aww hell yeah
[19:52] <hibby> I love a good DDOS on a car park, so I do
[19:52] <hibby> sorry, DOS
[19:52] <fsphil-laptop> I'm not far from tesco - I bet this is strong enough to cause problems there
[19:53] <hibby> if it's not, just craack out some wideband noise
[19:53] <daveake> Hmmmmm .....
[19:53] <fsphil-laptop> must connect the camera to this payload, see how quickly the images are received
[19:54] <daveake> ..... when I was at college, a neighbour of my parents had a CB set that interfered with everything.
[19:54] <fsphil-laptop> ooh had a similar experience here
[19:54] <hibby> lol
[19:54] <daveake> So I built the world's worst readio transmitter to stop him from hearing anything else :)
[19:54] <fsphil-laptop> guy down the road had a mate that would drive around occasionally -- had a magmounted CB in the car with a huge amp (or burner as they called it)
[19:54] <fsphil-laptop> it would reset my PC
[19:55] <daveake> LOL.
[19:55] <hibby> i think my new flat for this year is in a slightly better location for radio
[19:55] <hibby> on at least the first flor
[19:55] <hibby> **floor
[19:55] <hibby> which means I can string things out to a local lamppost without fear of neds trying to pull it down
[19:55] <fsphil-laptop> good for vhf/uhf anyway
[19:56] <daveake> When I was working for WRC a while back, they had some IBM compact PCs that didn't like radios. We all had hand-held 2W walkie talkies, and those easily rebotted the pCs
[19:56] <fsphil-laptop> oooh so HF too then
[19:56] <hibby> maybe
[19:56] <hibby> inner city HF is gonna need some bandpassing
[19:56] <fsphil-laptop> aye
[19:56] <hibby> but
[19:56] <fsphil-laptop> it's bad enough in a small town
[19:56] <hibby> the last time I spoke on VHF
[19:56] <hibby> which is some time ago
[19:56] <hibby> (november, lol)
[19:57] <hibby> someone sent me a nice multiband bandpass filter
[19:57] <hibby> i shoulld be on more, really, if folks are that useful
[19:57] <hibby> http://www.5b4agn.net/TX%20BPF.htm
[19:57] <fsphil-laptop> ooh complicated
[19:58] <hibby> nah
[19:58] <hibby> just inductive
[19:59] <hibby> seeing as I'll be the leaseholder this time
[19:59] <hibby> I might be able to ask the landlord if I can stick a g5rv or other multiband doublet up on the roof
[20:02] <hibby> http://www.youtube.com/watch?v=m9FRSghXhDM
[20:03] <hibby> epic fast food lasagna
[20:05] <hibby> i love how he says sauce
[20:05] <hibby> and how angry he seems
[20:05] <hibby> or drunk
[20:10] <fsphil> "No-ones ever made 15 burgers"
[20:10] <hibby> hehe
[20:10] <hibby> my flatmate is vegan
[20:11] <hibby> so I may have to find a way of doing this in a vegan friendlly way
[20:13] <hibby> a shot of jack daniels and big mac sauce
[20:13] <fsphil> that was nasty
[20:15] <hibby> haha
[20:15] <hibby> SAUUSSEE
[20:15] <hibby> i think i'm taking that pronunciation back to scotland
[20:15] <hibby> "AMMA HAVE THAT WITH SAUSSEE, Y'HEAR?"
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[20:35] <Darkside> k home
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[20:36] <hibby> danielsaul: how was the flight yesterday?
[20:36] <hibby> damnit
[20:36] <hibby> Dan-K2VOL: see above
[20:36] <danielsaul> hibby: :P
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[20:41] <Dan-K2VOL> hey danielsaul
[20:41] <Dan-K2VOL> or hibby?
[20:41] <Dan-K2VOL> anywah
[20:41] <Dan-K2VOL> anyway, went fine, knocked a few kids in the head with the last pay load :-P
[20:42] <Darkside> wut?
[20:42] <hibby> hurrah!
[20:42] <Darkside> how so?
[20:42] <hibby> was it as exciting as you were anticipating?
[20:44] <Dan-K2VOL> oh yes ,precisely
[20:44] <Dan-K2VOL> well, there was 6 payloads about 1 meter apart, and the kids were all holding them
[20:45] <hibby> awesome. I'm glad it was such a worthwhile excursion
[20:45] <Dan-K2VOL> wind took balloon a little off expected course on liftoff ;-)
[20:45] <Darkside> haha
[20:45] <Dan-K2VOL> last few kids had the payload go horizontal before it started going vertical
[20:45] <Dan-K2VOL> well-padded though, no black eyes
[20:49] <hibby> heheh
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[20:52] <NigeyS> hey hibby , Dan-K2VOL
[20:52] <Darkside> http://www.youtube.com/watch?v=6YmBKwo6iE4 <--- this is FAR, FAR too accurate
[20:53] <Darkside> he does an impersonation of our politicians WAY to well
[20:53] <NigeyS> lol
[20:53] <NigeyS> back in bath now Darkside ?
[20:53] <Darkside> yep
[20:53] <Darkside> lemme find this altium manual..
[20:53] <NigeyS> ah oki
[20:56] <fsphil> Darkside, http://www.youtube.com/watch?v=6scNiWc4kgo
[20:56] Action: hibby suspects his battery on t'laptop might be on the way out
[20:56] <NigeyS> partial charging hibby ?
[20:56] <hibby> it's gone binary on the meter
[20:57] <NigeyS> yikes
[20:57] <hibby> so I'll get about 90 minutes on battery
[20:57] <hibby> but the meter here goes 100%
[20:57] <hibby> CRISIS
[20:57] <hibby> plug it in, back to 100%
[20:57] <NigeyS> weird
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[20:57] <hibby> 100% charged, 1:10 till full
[20:57] <Darkside> fsphil: !!!!!!!
[20:57] <Darkside> wow
[20:57] <fsphil> madness
[20:58] <Darkside> can you simulate some decrsed SNR though?
[20:58] <Darkside> http://pipe2.darklomax.org/dump/Altium_Notes.pdf NigeyS
[20:58] <fsphil> not easily
[20:58] <Upu> impressive fsphil :)
[20:58] <hibby> such a nerd
[20:58] <Darkside> fsphil: move the transmitter away?
[20:58] <Darkside> :P
[20:58] <hibby> could make song out of that
[20:59] <Darkside> also i'm pretty sure thats going to break the regs on the ham bands :P
[20:59] <fsphil> It's 10pm, I'd look good walking down the street with a laptop and an antenna sticking out the side
[20:59] <Upu> I couldn't get 600 baud reliably
[20:59] <NigeyS> oh tnx Darkside
[20:59] <Darkside> we're only allowed 3KHz bandwidth on J3E
[20:59] <fsphil> aah but it's license exempt Darkside :)
[20:59] <Darkside> yeah
[20:59] <Darkside> which is why we'd have to do it on 434MHz
[20:59] <hibby> ocht
[20:59] <hibby> it's only NI
[20:59] <eroomde> o
[20:59] <eroomde> yo*
[20:59] <NigeyS> yo ed
[20:59] <Darkside> hey eroomde
[21:00] <Darkside> i am back in bath
[21:00] <Darkside> had a wander around westminster today
[21:00] <Darkside> man, the jubilee line is DEEP
[21:00] <Randomskk> so deep
[21:00] <NigeyS> yup hehe
[21:00] <Randomskk> you go down like three levels
[21:00] <Darkside> yep
[21:00] <Darkside> its incredible
[21:00] <Randomskk> I was thinking "if shit goes down while I'm down here, I'm so screwed"
[21:00] <Darkside> i want to explore!
[21:00] <Darkside> but i'd get run over by a train
[21:00] <fsphil> ooh I was there -- and it gets really hot down there
[21:00] <Randomskk> once you get to canada water it's actually not that far down
[21:00] <NigeyS> jubilee...isnt that the new that cost silly money ?
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[21:01] <Darkside> jubilee is OLD
[21:01] <Darkside> i think
[21:02] <hibby> was there not one put in for the y2k?
[21:03] <NigeyS> think so, unless it was just extended
[21:03] <Darkside> anyway, the tube system is really cool
[21:03] <Darkside> i like the proper tube lines
[21:04] <Darkside> the ones with the tunnels like 3m in diameter
[21:04] <hibby> the glasgow one is amazing
[21:04] <Darkside> i guess it wouldn't be awesome if you're claustrophobic
[21:04] <Laurenceb_> london underground is a really knackered
[21:04] <Darkside> but i'm not, and it was so cool to see how close the walls of the tunnel were
[21:05] <Laurenceb_> they need to shut it for like 5 years and totally rebuild it :P
[21:05] <Darkside> heh
[21:05] <Darkside> wel the curcle line was down this weekend
[21:05] <Darkside> circle*
[21:05] <hibby> shanghai's underground grows at like. 5-6feet an hour, iirc
[21:05] <Laurenceb_> get the track so its actually straight, clear up all the messy cable
[21:05] <Darkside> as was part of hammersmith, and the district
[21:05] <Laurenceb_> pain the walls and stuff
[21:05] <Laurenceb_> *paint
[21:05] <Laurenceb_> its a tip down there
[21:05] <Darkside> heh
[21:06] <Darkside> oh yeah, on the picadilly line there was this horrible loud screeching
[21:06] <Darkside> eroomde will attest to that
[21:06] <Darkside> didn't help we had the windoe open, but still
[21:06] <Darkside> :P
[21:06] <Laurenceb_> unless you like the scrapyard challenge styling
[21:07] <Laurenceb_> the constant screeching is due to the piss poor track alignment
[21:07] <Darkside> lol
[21:07] <Laurenceb_> it catches on the flanges
[21:07] <Darkside> was interesting looking at all the cables
[21:08] <Laurenceb_> last time i was on there i looked up through one of the holes in the suspended ceiling, and there was a QC sticker on the tunnel lining...
[21:08] <fsphil> many rats?
[21:08] <Laurenceb_> .. from 1870
[21:08] <Darkside> QC?
[21:09] <fsphil> quality control?
[21:09] <Laurenceb_> yes
[21:09] <Darkside> hahahah
[21:09] <Darkside> Laurenceb_: what line was that on?
[21:09] <Laurenceb_> with signature that looked like it was written with a quill
[21:09] <Laurenceb_> cant remeber sorry
[21:10] <eroomde> sorry was on phone
[21:10] <eroomde> yes, it was screechy
[21:10] <Laurenceb_> most of the 'newer' deep tunnels are made from cast iron sections that bolt together
[21:10] <Darkside> yeah thats what it looks like
[21:10] <Laurenceb_> they all have QC stickers on
[21:10] <Darkside> its pretty cool shit
[21:10] <Darkside> well
[21:10] <Darkside> i mean, its cool looking at the old engineering
[21:10] <Laurenceb_> its amusing to see how just old some are
[21:10] <Darkside> and heriatage
[21:10] <Darkside> heritage*
[21:10] <Darkside> heh
[21:11] <eroomde> Darkside: in your tunnel, did you try turning the power down?
[21:11] <eroomde> it occurs to me it might be saturating the front end with 5W
[21:12] <Laurenceb_> it takes more than 5W to run a train
[21:12] <Darkside> eroomde: nah, as he walked away you could hear it fading out
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[21:12] <hibby> Laurenceb_: model train
[21:12] <Darkside> we were talking constantly
[21:12] <eroomde> ah ok
[21:12] <eroomde> fascinating
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[21:17] <Darkside> eroomde: at some point i'm going to do some more analysis
[21:17] <Darkside> a proper signal strength meter
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[21:35] <NigeyS> dum de dum
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[21:37] <jcoxon> evening
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[21:41] <NigeyS> evening james
[21:48] <daveake> Blimey, RS have really screwed up their web site. Asked it to find me some FETs (for a nichrome cutdown). It said ....
[21:48] <daveake> .... "Your search for fet found 0 products. Below are results we found for feet"
[21:49] <Darkside> lol
[21:49] <Randomskk> sounds like they've diversifying their product offering :P
[21:50] <SpeedEvil> For people that would otherwise be defeeted.
[21:51] <daveake> Soled out
[21:55] <griffonbot> Received email: Gregory Tomlin "[UKHAS] Conference"
[21:55] <fsphil-laptop> 4800 was a bit too much for it :)
[21:55] <mattltm> fsphil: Just had a bit of a result...
[21:56] <fsphil-laptop> oooh
[21:56] <mattltm> £6 mains timer from tesco
[21:56] <mattltm> ripped it apart
[21:56] <mattltm> the timer runs from a 1.2v batt
[21:57] <mattltm> has 3 connections. +1.2v, Gnd and 1.2V output when timer is on.
[21:57] <mattltm> can have 140 on/off settings :)
[21:58] <fsphil-laptop> sneaky!
[21:58] <jcoxon> that is sneaky
[21:58] <mattltm> got it sitting on the bench running off a AA cell clicking a relay and turning on the arduino for 5 minutes than off for 10 minutes :)
[21:59] <SpeedEvil> Umm. Relay?
[21:59] <mattltm> Im going to use it to run statbuoy on for 15 mins off for 3 house etc
[21:59] <SpeedEvil> It seems likely you'd use more power in the relay than anything else.
[21:59] <mattltm> its energising a small relay and passing 12v to the arduino.
[21:59] <Darkside> mattltm: looking forward to the weekend? :d
[22:00] <mattltm> Darkside: Next weekend?
[22:00] <Darkside> yes
[22:00] <Darkside> looks like it'll be a dua launch
[22:00] <Darkside> dual*
[22:00] <mattltm> SpeedEvil: Is there a better way to switch 12V?
[22:00] <mattltm> Darkside: I wont make it. Have a funeral over the weekend :(
[22:00] <SpeedEvil> mattltm: FET, or even bipolar is likely to use less power
[22:01] <Darkside> ahh damn
[22:01] <mattltm> Oh, good plan.
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[22:04] <mattltm> Darkside: Its going to be a bit strange. 6 peice jazz band, a trip to the beach, no one is allowed to wear black, he has a string of hopps in the coffin (in his words... "so I can have a beer on the way down!") and a cd of the cheeky girls!
[22:04] <mattltm> for an old man, he was very well organised.
[22:06] <mattltm> Right. bedtime :)
[22:07] <fsphil-laptop> nights mattltm
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[22:10] <fsphil-laptop> nah, 4800 is a no-go. wonder if its fldigi or my payload
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[00:00] --- Mon Aug 15 2011