highaltitude.log.20120125

[00:03] <Lunar_Lander> anyone still here?
[00:03] Action: fsphil should be in bed
[00:03] Action: daveake is as much here as he ever is
[00:04] <Lunar_Lander> yea
[00:04] <Lunar_Lander> as I said
[00:04] <fsphil> right, no more youtube!
[00:04] <Lunar_Lander> when I saw those strange links, I was shocked
[00:04] <Lunar_Lander> but appearently they are just nonsense and not connected to any website
[00:07] <hibby> fsphil: you're welcome
[00:08] <fsphil> I've found morse code on 2m
[00:08] <fsphil> lovely
[00:08] <Lunar_Lander> xD
[00:08] <hibby> haha
[00:08] <hibby> sweet
[00:08] <hibby> I'm enjoying pony-related media
[00:09] <hibby> actually, I've just switched back to reading with beer
[00:09] <Darkside> hibby: what pony-related media?
[00:10] <Darkside> the new episode
[00:10] <Darkside> ?
[00:10] <Lunar_Lander> wb Dark
[00:10] <Lunar_Lander> Darkside
[00:10] <hibby> Darkside: watched it the other night
[00:10] <hibby> with this awesome EP on in the background: http://youtu.be/jgZzH1FWi24
[00:10] <Darkside> brb, meeting supervisor
[00:11] <hibby> nah, just reddit.com/r/mylittlepony
[00:18] <hibby> also
[00:18] <hibby> http://www.reddit.com/r/mylittlelinux/
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[00:33] <Lunar_Lander> fsphil: still morse code there?
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[00:58] <hibby> aha
[00:58] <hibby> we appear to have a new bass
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[06:18] <NigelMoby> tooooo bloody early
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[06:49] <UpuHome> morning
[06:50] <NigelMoby> morning upu
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[08:42] <number10> no change in prediction daveake
[08:42] <daveake> No, it's been very consistent :(
[08:44] <number10> mind you, I just downloaded grib data using grib.us and it looks from that you may get westerlies
[08:45] <daveake> Fingers crossed
[08:46] <daveake> I'll order the helium today anyway
[08:50] <daveake> Looking at my screenshots of the last 3 day's predictions, they look *exactly* the same. Wonder if the prediction data is stuck or it's just guessing :)
[08:51] <number10> I think it uses the same grib data I have downloaded
[08:51] <number10> and that shows a pressure system slowly moving
[08:52] <number10> the data gets updated ebery 3 hours I think
[08:52] <daveake> The rpediction from Sunday is a bit different, but the ones since have the same curves and kinks ... they really do look identical
[08:52] <daveake> 6 hours
[08:53] <daveake> I asked jsowman about it when I was planning cloud2
[08:54] <number10> yes at 0000 1200 and 0600 1800 looking at the file downloads
[08:54] <daveake> Yep
[09:07] <daveake> A friend of mine who does a lot of paragliding just took a look at the data he uses. He reckons the winds go NE at launch and then east, as you said. Wonder why the predictor isn't showing that.
[09:11] <daveake> I've just run the predictor for each day from now to Sunday. The flight path swings round from due east to due south progressively.
[09:11] <number10> maybe predictor does not update the files at the times I metioned - or the data that we are looking at does not include some higher altitude data - just guessing really :-S
[09:11] <daveake> yeah, could be the latter I think
[09:11] <daveake> Just strange though that for 3 days the prediction hasn't changed a jot
[09:12] <daveake> Yet if I run the prediction for 9am and 10am Sunday, the predictions are a fair bit different
[09:13] <daveake> So it's rather more consistent than I've seen it before
[09:14] <daveake> ping jonsowman
[09:14] <number10> well we are not near the go-nogo point yet
[09:14] <daveake> No, true
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[09:18] <fsphil> I'll clear the predictor cache in a minute
[09:18] <daveake> Thanks Dave :)
[09:20] <fsphil> no prob ryan
[09:23] <number10> on a totally different subject - foxes were attaccking a cat in next doors garden - never heard a cat scream before :( must be the introduction of wheelie bins in the last couple of years - no food
[09:26] <fsphil> eek
[09:27] <fsphil> there are no foxes in this town
[09:28] <fsphil> try the predictor now
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[09:32] <number10> fields at end of garden so we get badgers and foxes - would make a nice place to set up an antenna but dont think farmer would be too chuffed
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[09:57] <fsphil> I've only seen a fox once so far
[09:58] <fsphil> it was hunting in a field not far from here
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[10:01] <Lunar_Lander> hello
[10:01] Nick change: number10_ -> number10
[10:02] <earthshine> O/
[10:02] <Lunar_Lander> hi earthshine
[10:02] <earthshine> Hi
[10:03] <daveake> fsphil/number10 The prediction has changed now ... http://habhub.org/predict/#!/uuid=a79dca92247c48a2a2c93ebc308f2e249cc23818
[10:03] <daveake> Not by enough, mind!
[10:03] <Lunar_Lander> hi daveake
[10:03] <daveake> Hi LL
[10:03] <fsphil> splish splash
[10:04] <Lunar_Lander> xD
[10:04] <number10> slightly further east - things will look better by tomorrow evening
[10:05] <daveake> Fingers crossed :)
[10:05] <Lunar_Lander> this morning I thought about if there were people who could be interested in the high speeds during initial descent
[10:05] <Lunar_Lander> just asking my professor via e-mail if he could think of such applications
[10:06] <daveake> I put the Buzz2 data into a spreadsheet for some simple calculations, and max vertical speed after burst was 418kph
[10:07] <daveake> How reliable the altitude reading from the GPS is at those speeds I don't know :)
[10:07] <Lunar_Lander> :)
[10:07] <daveake> That was just a spot reading
[10:07] <oh7lzb> http://www.air-attack.com/news/article/4722 - should attach some sensor in my balloon to detect and quickly transmit information of sonic booms and other high-volume events :)
[10:07] <fsphil> gps: "Oh crap I'm a missile!"
[10:08] <daveake> Not that fast fortunately :D
[10:08] <Lunar_Lander> oh hi oh7lzb
[10:09] <Lunar_Lander> nice to see someone from Belgium(?) in here
[10:09] <daveake> We have to be nice to our Belgian friends :)
[10:10] <Lunar_Lander> :)
[10:10] <Lunar_Lander> yeah they did the first controlled splashdown after all
[10:10] <Lunar_Lander> on howest 2 IIRC
[10:10] <fsphil> Belgium?
[10:10] <Lunar_Lander> isn't OH belgion?
[10:11] <Lunar_Lander> belgium
[10:11] <Lunar_Lander> or is it Denmark and ON is BE?
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[10:13] <fsphil> OH is Finland
[10:13] <oh7lzb> Negative, you have 2 attempts left
[10:13] <Lunar_Lander> oh
[10:13] <daveake> Ohio?
[10:14] <Lunar_Lander> the land of the inventor of the radiosonde
[10:14] <daveake> 1 attempy left ...
[10:14] <Lunar_Lander> Vilho Väisälä
[10:15] <oh7lzb> fsphil wins the race, congratulations!
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[10:16] <fsphil> one of the few prefixes I remember :)
[10:16] <Lunar_Lander> oh7lzb: sorry :)
[10:16] <Lunar_Lander> are you preparing a balloon also?
[10:17] <oh7lzb> In my dreams, yes. Haven't made any real actions in the real life, though.
[10:17] <Lunar_Lander> yea
[10:17] <Lunar_Lander> do you live near the Vaisala factory?
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[10:21] <oh7lzb> Actually, pretty close, some 9 km if you travel by a balloon
[10:22] <Lunar_Lander> cool
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[10:27] <daveake> We went to Helsinki for a few days last year. Stayed in the prison hotel - http://www.flickr.com/photos/daveake/6292933712/in/set-72157628006449140 :)
[10:28] <Lunar_Lander> OK people
[10:28] <Lunar_Lander> cu later
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[10:31] <jonsowman> ping daveake
[10:31] <daveake> pong
[10:32] <daveake> Sorted now I think ... the predictor seemed stuck (it showed *exactly* the same prediction for my flight on Sunday today as it showed the last 2 days). fsphil cleared the cahce and it's updated now :)
[10:33] <daveake> Last 3 days it showed this - https://fbcdn-sphotos-a.akamaihd.net/hphotos-ak-ash4/s320x320/395227_10150508503412654_695937653_8735176_1368733503_n.jpg
[10:33] <daveake> And after the cache was cleared it changed to - https://fbcdn-sphotos-a.akamaihd.net/hphotos-ak-ash4/s320x320/408944_10150508590282654_695937653_8735285_883944494_n.jpg
[10:33] <daveake> I need it to change more though :p
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[11:28] <cuddykid> g'day all
[11:28] <UpuWork> hey Adam morning
[11:29] <daveake> Morning FET Man
[11:30] <cuddykid> daveake: lol - don't even go there :P everything that involves a FET and me just doesn't seem to work :S lol
[11:31] <cuddykid> morning UpuWork :)
[11:31] <daveake> It's the nylon clothing that does it
[11:31] <cuddykid> lol
[11:33] <cuddykid> the other FET is up in nottingham, going back tomorrow and should hopefully have a reasonable amount of free time fri/weekend to finally get it all sorted
[11:34] <cuddykid> daveake: are they sensitive to soldering? That's the only possible explanation I have atm, as everything is hooked up right (I think&!)
[11:39] <daveake> No, just to static. Iron should be earthed and it's best to use a grounding strap on your wrist. That said, all I do is grab something that's grounded with my hand before working.
[11:39] <daveake> (preferably not the hot iron)
[11:41] <cuddykid> hmm - maybe it is my wiring then, I've killed anything that's static sensitive before - but always a first I suppose
[11:41] <cuddykid> lol
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[12:26] <Laurenceb> http://www.wonderlandmodels.com/radio-control/rc-helicopters/silverlit/spare-parts/
[12:26] <Laurenceb> cheap
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[13:04] <cuddykid> am I correct in thinking that I can just plug a 3.3V reg into 5V supply from arduino and then a nice 3.3v supply will come out of the reg?
[13:05] <SpeedEvil> cuddykid: mostly
[13:05] <daveake> Depends. Some regulators need more than the 1.7V difference to work properly. Check the "drop-out" voltage.
[13:06] <daveake> Look for ones labelled "LDO" (Low DropOut)
[13:06] <cuddykid> thanks :D will do
[13:06] <daveake> Or [soap-box-mode] use a 3V3 Arduino
[13:07] <Laurenceb> http://www.sequoia.co.uk/components/family.php?d=2&c=102&f=244&p=&fmt=grid
[13:08] <daveake> I bought a BMP085. It's so small I've lost it already :p
[13:10] <Randomskk> if you only need 50mA or less, arduinos with ftdi chips already provide a 3v3 rail
[13:11] <daveake> good point
[13:15] <cuddykid> Randomskk: this is for a custom pcb though, so I won't be using the whole arduino package
[13:15] <cuddykid> would it be best if I hooked up the 3.3V reg to where my main power source is (~9V) - the 5V reg is hooked up there too
[13:16] <Randomskk> either can work, assuming the drop out voltage on the 3v3 is low enough
[13:16] <Randomskk> it kinda depends on how much current you plan on drawing
[13:16] <Randomskk> either way the entire voltage difference will turn into heat somewhere -- either in a combination of both packages or just in the 3v3
[13:17] <cuddykid> drop out voltage is ~1.2v max
[13:17] <Randomskk> so for instance if you're already using a chunky 5v reg that can take a good amount of heat, and only need a little 3v3 reg, putting it after the 5v means less heat in the 3v3 regulator (but a bit more current through the 5v)
[13:17] <cuddykid> all I need the 3.3v for is ublox gps
[13:17] <Randomskk> if you need a lot of 3v3 power then probably connect it right to 9v
[13:18] <Randomskk> probably be fine either way then
[13:18] <cuddykid> cool :D thanks
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[13:38] <NigelMoby> right, who's a wizz with gravity?
[13:38] <NigelMoby> cause somethings annoying me and I can't figure it out.
[13:41] <Randomskk> newtonian only
[13:42] <fsphil> I realised a while back gravity is strongest on the surface of the earth - it gets weaker further inside and outside
[13:42] <NigelMoby> ok well.. answer this..
[13:43] <NigelMoby> if gravity is attractive why is the moon moving away from us at 2cm a year. surely it should be getting closer?
[13:44] <fsphil> the moon is gaining energy
[13:45] <NigelMoby> not enough to counter the earths pull?
[13:45] <fsphil> yea
[13:45] <fsphil> the tides the moon causes are slowing the earths rotation, that energy is transferred to the moon
[13:45] <fsphil> speeds up its orbit
[13:46] <fsphil> I'm sure that's a horrible description
[13:46] <NigelMoby> ohhh ok that makes sense, tnx, it was really pickling me!!
[13:47] <fsphil> I'm not really sure how the energy is transferred. I suppose it's the same way a spacecraft does a gravitational slingshot
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[13:48] <NigelMoby> must be, I'm going to look it up, my thinking was it should get closer over time, as satellites etc do, didn't think about the tidal effects.
[13:49] <oh7lzb> That has something to do with the spacecraft being subject to the gravitational force for a longer time while approaching/speeding up?
[13:49] <oh7lzb> Ok, so there is a wikipedia article on that.
[13:49] <NigelMoby> Ooo
[13:50] <oh7lzb> Has nothing to do with that it turns out.
[13:50] <fsphil> satellites only get closer due to atmospheric drag
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[13:51] <NigelMoby> I'm sure they get pulled in VIA gravity to, I mean if gravity can pull in material to make a moon, it can pull in a satellite?
[13:52] <fsphil> gravity keeps it in orbit
[13:52] <fsphil> a satellite will only fall if it looses energy/speed
[13:53] <Randomskk> http://en.wikipedia.org/wiki/Orbit_of_the_Moon#Tidal_evolution
[13:53] <NigelMoby> Ohh so even our furthest sats are victims of drag?
[13:53] <Randomskk> 2nd paragraph
[13:53] <fsphil> the drag should decrease with altitude
[13:54] <NigelMoby> that helps thanks Adam
[13:55] <Randomskk> with orbit generally though, basically the gravity is really pretty strong and is pulling stuff towards earth all the time really fast, but the satellites move sideways so fast they are forever falling
[13:55] <Randomskk> if it helps visualise it, imagine a massive cannon on the north pole, pointing sideways and firing a really fast cannonball -- you can imagine that the cannonball starts going sideways real quick...
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[13:56] <Randomskk> ...while at the same time starts falling towards the earth, like any cannonball
[13:56] <Randomskk> but if it keeps going sideways fast enough, it will beat out the curvature of the earth
[13:56] <Randomskk> and end up going around and around
[13:56] <Randomskk> (too fast and it'l shoot off into space, too slow and it'l eventually get closer and closer to the earth then hit it)
[13:56] <fsphil> another random fact: light falls at the same speed as that canon
[13:57] <NigelMoby> Yup, making sense now, bloody confusing stuff mind.
[13:57] <NigelMoby> As a result, some of the Earth's rotational momentum is gradually being transferred to the Moon's orbital momentum, and this causes the Moon to slowly recede from Earth at the rate of approximately 38 millimetres per year.
[13:57] <fsphil> it just doesn't hang around long enough to be pulled to the ground
[13:57] <eroomde> useless link sorry
[13:57] <eroomde> http://www.waowen.screaming.net/revision/force&motion/newtmtn.gif
[13:57] <NigelMoby> lol hey ed
[13:57] <Randomskk> NigelMoby: the tidal effect is making the moon move faster, and therefore its orbit increases
[13:58] <Randomskk> eroomde: they have a flash version http://galileoandeinstein.physics.virginia.edu/more_stuff/flashlets/NewtMtn/NewtMtn.html which seems to work
[13:58] <fsphil> ah great diagram eroomde
[13:58] <eroomde> so basically, orbit as about going fast enough sideways that you fall down at the same rate as the horizon falls away from you
[13:58] <eroomde> fsphil: it's newton's famous one
[13:58] <eroomde> as soon as i show it, people suddenly get orbit
[13:58] <fsphil> douglas adams said it best: "You aim for the ground, and miss"
[13:58] <eroomde> and why virgin galactic isn't going into orbit etc
[14:00] <NigelMoby> Meh gtg, meet the estate agent, thnx all for explaining that to me, appreciated.
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[14:22] <fsphil> hehe, orbital dynamic is simpler than the house market
[14:39] <gonzo_> more honest though
[14:40] <SpeedEvil> The three body problem - if you have a four bed house, you will only be paid housing benefit for a three bed.
[14:44] <daveake> Helium ordered. Fingers crossed for the weather :)
[14:48] <fsphil> pouring down here
[14:51] <daveake> You expect anything else where you live? :)
[14:54] <fsphil> sometimes :)
[14:55] <fsphil> reality keeps getting in the way
[14:59] <eroomde> daveake: have you alink to latest pred?
[14:59] <daveake> justamo
[15:00] <daveake> http://habhub.org/predict/#!/uuid=07959bbd4a0dd0c86a08e6afd13470e95ec62704
[15:00] <daveake> Need it to swing round more :)
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[15:02] <eroomde> you want it back presumably
[15:02] <daveake> Yes
[15:02] <daveake> It's a photographic payload, not an altitude attempt :)
[15:05] <joph> wow, just read that windows 7 supports light sensors, anyone tried to connect a light sensor through a µC for automativ brightness control?
[15:05] <joph> *automatic
[15:06] <Laurenceb> no
[15:06] <Laurenceb> its really hard
[15:06] <fsphil> shouldnt' the monitor do that by itself?
[15:06] <Laurenceb> i think you need to run windows7 to stand a chance of it working
[15:07] <fsphil> my TV does it, though it's easy to cover the sensor accidentally
[15:09] <Laurenceb> http://www.ebay.co.uk/itm/Photosensitive-flexible-pcb-material-Pyralux-6-x-4-5-/170700510727
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[15:35] <daveake> Is it December 21st already?
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[15:37] <The-Compiler> oh shit, that was the wrong plug.
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[15:42] <daveake> Ain't having my duct tape
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[15:44] <NigeyS> lol dave
[15:44] <NigeyS> not using my pink 1 either!
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[15:44] Action: daveake hopes we're still talking about duct tape
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[15:46] <NigeyS> hah
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[15:55] <daveake> notam is in
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[16:11] <cuddykid> daveake: when's target launch?
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[16:14] <daveake> cuddykid Sunday morning, but the prediction isn't goot at the mo
[16:14] <cuddykid> ahh right, fingers crosssed
[16:14] <cuddykid> I was looking at predictions for sat for WillDuckworth and they have changed a fair bit in the past few days
[16:15] <daveake> yeah
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[16:26] <cuddykid> ahh daveake, I have just had a thought& do the grounds need to be connected up when using FET? e.g. currently I have arduino -> gate pin and then separate circuit using separate battery.. if you get me :P
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[16:35] <UpuWork> grounds should usually all be tied together
[16:35] <cuddykid> still doesn't work :(
[16:35] <cuddykid> boohoo
[16:37] <daveake> There needs to be a ground path from FET back to Arduino, so the FET gets turned on, and there needs to be a ground path from FET back to the power source for the nichrome (assuming that's running from a separate supply). As Upu says, grounds go together
[16:39] <UpuWork> this is why you should always check your RX & TX lines are the right way round... http://imagebin.org/195436
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[16:42] <CovBalloon> Hello
[16:42] <UpuWork> afternoon
[16:43] <CovBalloon> Is there anyone in the Midlands that I can make contact with?
[16:43] <CovBalloon> Just starting out on a Balloon project with my son
[16:44] <UpuWork> welcome aboard, not sure of anyone round that area but in here is your best bet
[16:45] <CovBalloon> :) I work down near Basingstoke so I can see there are quite a few people in that area.
[16:45] <UpuWork> are you after someone to chat to about it , how to get started etc ?
[16:45] <UpuWork> Actually yeah I've seen a few recievers around there
[16:45] <CovBalloon> I have done my research, read a lot on the web, started working on a number or Adruino projects etc. Just looking to get some specfic advice etc
[16:46] <UpuWork> ask away
[16:47] <CovBalloon> I'm really interested in using telemetry to track the balloon and recover but I "currently" dont have a ham license, this is something that I would like advice on, what's required to broadcast ect
[16:47] <UpuWork> good news on that one you don't need a HAM license to recieve
[16:47] <daveake> No need
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[16:47] <UpuWork> however generally you'll need a amateur radio to recieve due to the sensitivity
[16:47] <daveake> We use low power transmitters which don't need a license
[16:48] <UpuWork> We tend to use 10mW 70cms (434Mhz) transmitters which are license exempt
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[16:48] <SpeedEvil> And get ranges of over 500km to a decent radio and antenna.
[16:48] <SpeedEvil> (at altitude)
[16:48] <UpuWork> and then some
[16:48] <SpeedEvil> Indeed.
[16:49] <SpeedEvil> Ranges of over 100km aren't that much use though
[16:49] <SpeedEvil> As they can only narrow where it fell to a few kilometer radius
[16:49] <CovBalloon> whats the draw on power?
[16:50] <UpuWork> 10mW @ 5V
[16:50] <UpuWork> if you use Arduino
[16:50] <CovBalloon> arduino is the plan
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[16:50] <UpuWork> you can run Arduinos @ 5v and 3.3v , 3.3v are benficial if youre GPS runs at 3.3v
[16:50] <CovBalloon> is it best to us a predefined launch site or can we arrange one closer to home ie Coventry
[16:51] <UpuWork> You need to apply for a NOTAM (notice to airmen)
[16:51] <UpuWork> some sites have those permanently but you can apply as long as you're not at the end Heathrow run way ]
[16:52] <UpuWork> http://ukhas.org.uk/general:restrictions_legality
[16:52] <CovBalloon> I have been following the mailing list for a little while and noticed the comments around insurance. Has anything been arranged or planning to be arranged?
[16:53] <UpuWork> no we can't get it
[16:53] <SpeedEvil> It might be worth everyone putting aside a fiver per launch into a pot
[16:53] <UpuWork> no one will touch us which is annoying as the met office launch thousands of balloons each year with no claims
[16:53] <UpuWork> you'll need more than a fiver :)
[16:53] <SpeedEvil> 3 claims/year IIRC
[16:53] <UpuWork> no serious claims sorry
[16:53] <SpeedEvil> For a couple of hundred quid or so IIRC
[16:54] <SpeedEvil> or of that order
[16:54] <SpeedEvil> 'We' have actually had a payload hit a car.
[16:54] <UpuWork> assume a greenhouse / car window / power line recovery will cost you about £500
[16:54] <SpeedEvil> So, it's not ridiculous.
[16:54] <UpuWork> if you land on the M25 good luck
[16:54] <UpuWork> :)
[16:54] <CovBalloon> unless it lands on a motorway
[16:54] <SpeedEvil> UpuWork: Indeed - I'm assuming that doesn't happen in the first year.
[16:55] <UpuWork> generally CovBalloon we use a predictor ( http://habhub.org/predict/ ) so we know round abouts where its going
[16:55] <daveake> Just aim for the sea. Sorted. :p
[16:55] <UpuWork> and if its going near cities, airports etc we wouldn't launch
[16:55] <UpuWork> All the cool people land in the sea
[16:55] <CovBalloon> lol
[16:55] <daveake> :D
[16:56] <daveake> And the cooler ones still get it recovered ...
[16:56] <BrainDamage> you need to start adding a propeller to payloads
[16:56] <BrainDamage> so it travels to shore
[16:56] <UpuWork> I prefer motorboat
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[16:57] <UpuWork> there may be a launch this weekend
[16:57] <UpuWork> which is always a good time to be on here
[16:57] <UpuWork> and you can track live via www.spacenear.us/tracker
[16:57] <CovBalloon> is that the taget called cloud?
[16:58] <UpuWork> Cloud is Daveake's balloon he's testing
[16:58] <CovBalloon> who is launching this weekend?
[16:58] <UpuWork> Dave I think
[16:58] <CovBalloon> ok
[16:58] <UpuWork> ok I need to roll home I'll be back in a bit but ask away
[16:58] <UpuWork> bbl
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[16:59] <CovBalloon> thanks, I am off to cubs to help out but will be back at 8pm
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[17:01] <CovBalloon> so how do we define the call sign for tracking?
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[17:01] <daveake> Make something up
[17:02] <daveake> I name my payloads after BUZZ (Lightyear) or CLOUD (wife's maiden name)
[17:02] <CovBalloon> that could be fun, so your launching this weekend (hopefully)?
[17:03] <daveake> Hopefully
[17:03] <daveake> btw I used to live in Cov, many years ago
[17:03] <CovBalloon> so do you have any pictures of your build, project?
[17:04] <daveake> Sure do - http://www.flickr.com/photos/daveake/sets/72157628868749177/
[17:04] <russss> b
[17:04] <russss> oops
[17:05] <daveake> I realise it'll need help to lift my pico payload, but I bought one of these - http://tinyurl.com/7eppkyo
[17:06] <daveake> It has to be done :)
[17:06] <SpeedEvil> :)
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[17:12] <CovBalloon> daveake - so how many recoveries have you had?
[17:12] <daveake> Of 4 flights, I've recovered 2 on the day, and 1 was recovered the following day by someone else.
[17:13] <CovBalloon> so one was lost?
[17:13] <daveake> The missing one was due to underinflation. I messed up weighing the neck lift because of strong winds.
[17:14] <andrew_apex> daveake: why does underinflation = not recovered? where did it land?
[17:14] <daveake> I knew as soon as I launched that it was going up too slow (compared to my previous launch)
[17:14] <andrew_apex> (or did it float)
[17:15] <CovBalloon> have you previously sent telemetry?
[17:15] <daveake> Went up too slowly so it spent more time in the strong wind than it should have. It did then float a bit high up, but the wind there didn't move it much.
[17:15] <andrew_apex> ah, makes sense, thanks :)
[17:16] <cuddykid> CovBalloon: hiya, I'm worcester way - well I launch from that way, at uni in Nottingham
[17:16] <daveake> I've written software before for telemetry, yes, but I've not directly coded for radio transmitters before.
[17:16] <cuddykid> also WillDuckworth is worcester way so we have a little habhub in worcs
[17:16] <CovBalloon> I'm planning on being in nottingham this weekend
[17:17] <cuddykid> ahh cool
[17:17] <CovBalloon> I'll shout a round of beers if you want to share stories, advice etc
[17:17] <daveake> With talk like that we'll all be there :D
[17:18] <CovBalloon> just counting coins in my pocket
[17:18] <cuddykid> haha, yeah :P
[17:18] <number10> were is the bus timetable
[17:19] <cuddykid> though I will more than likely be out in the evening as it's end of exams :D
[17:19] <cuddykid> *s ;)
[17:19] <cuddykid> Laurenceb also hovers around nottingham area I believe :)
[17:20] <CovBalloon> so what is the recommended shopping list to send and recieve telemetry? I have been thinking about getting a funsat pro usb stick
[17:20] <cuddykid> decent HAM radio to receive
[17:20] <cuddykid> ntx2 to send
[17:20] <cuddykid> arduino to process
[17:20] <number10> or second hand scanner like AOE8000 for RX
[17:21] <number10> AOR8000
[17:21] <daveake> ^^ I have
[17:21] <cuddykid> yagi antenna (preferably) or whip will usually do to rx
[17:21] <CovBalloon> have you looked at the funsat pro's?
[17:21] <navrac> I picked up a yupiteru mvt-7100 on ebay which works remarkably well
[17:22] <navrac> Ive heard the funsats need some filtering to work with habs
[17:22] <number10> then you need to give your receiver network mates beer tokens
[17:22] <navrac> Meanwhile my antenova chip is saying I'm currently mid adlantic
[17:22] <navrac> eems to take hours to get a good lock
[17:23] <CovBalloon> sorry whats an eems?
[17:23] <number10> +s
[17:23] <navrac> seems - sorry keyboard ill
[17:24] <CovBalloon> so if I wanted to buy a reciever what would be recommended for someone starting?
[17:24] <cuddykid> hmm - I pondering ordering an NRX2 (I think that's the name) and playing around for uplink. Have a feeling these easy radios are going to put on a poor show
[17:25] <cuddykid> CovBalloon - I have ft817 but is fairly expensive (£200ish 2nd hand), a good scanner (hand held) will do
[17:25] <cuddykid> http://ukhas.org.uk/guides:tracking_guide
[17:26] <navrac> I'd go for a cheap amateur 70cm rig something like the ft790 which are cheap to pick up - must do SSB not just AM/FM
[17:26] <daveake> CovBalloon I bought an AR8000 on ebay. Took a few weeks to get one at the right price. Saved £30 because it said "battery compartment broken", which turned out to be a missing battery spring, soon sorted for free :)
[17:26] <navrac> I think this gps module is ill - im now aproaching los angeles according to it.
[17:27] <daveake> Everyone seems to be killing antenovas
[17:27] <daveake> Or was that just you? ;)
[17:27] <navrac> Its just me!
[17:27] <daveake> :)
[17:27] <daveake> Are they tricky to wire up?
[17:28] <navrac> #1 died due to an argument with a heat gun
[17:28] <daveake> Was thinking of getting one for PicoBuzz
[17:28] <navrac> #2 died when getting it off the pcb to fix a wiring error
[17:28] <cuddykid> lol
[17:28] <navrac> #3 - resorted to soldering directly onto the pads on th bottom - pad fell of due to exces mechanical stress
[17:29] <cuddykid> navrac is killing antenovas, I'm killing FETs :S
[17:29] <navrac> I'd rather kill fets - muh cheaper
[17:29] <daveake> #3 was going to be my option - quick solder then glue it on for a bit of mechanical strength
[17:29] <daveake> He got them for free !!
[17:29] <cuddykid> yeah! Courtesy of daveake :D
[17:29] <daveake> So much cheaper :D
[17:29] <cuddykid> lol
[17:30] <cuddykid> I'm still convinced I haven't broken the 1st one though
[17:30] <daveake> You bought 3 for the free shipping?
[17:30] <cuddykid> never broken a part like that before - all I was doing was soldering :S
[17:30] <navrac> well it was working all day fairly well till i decided it was a bit deaf and i should change the cap in the tuning circuit - the pad fell off when i picked it up by the cap
[17:31] <navrac> couldnt be the ground pin or something easy - no it was the aerial out.
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[17:31] <daveake> Do these things need parts added then, or is it just power in data out?
[17:31] <navrac> power in data in/out and a 18-22pf cap.
[17:31] <daveake> easy peesy then ;)
[17:32] <navrac> trouble is they arent very sensitive - they need a good ground plane - are orientation sensitive too and fragile
[17:32] <navrac> I'd buy some fs03's if I could find someone with some left
[17:32] <daveake> Not good. Especially when directly underneath a foil balloon
[17:33] <daveake> I have some left ...
[17:33] <daveake> ... but I bought them to lose on pico flights :)
[17:33] <number10> you bought the last ones daveake
[17:33] <daveake> I know :D
[17:33] <daveake> And James did too
[17:33] <number10> well james does like to send them on a one way trip
[17:33] <navrac> time to search for an alternative. Or i might just but tthe ublox 6 modules and do my own aerial
[17:34] <navrac> well since most people tend to aim for aldeburgh, i could just lean out the window with a rifle and 'harvest' a few as they fly over
[17:35] Action: daveake adds Aldeburgh-proximity-cutdown code
[17:35] <number10> or request people waterproof them, and buy a boat
[17:38] <navrac> The annoying thing is the payload works perfectly - warbling away the temps and pressures - and completely rubbish positions
[17:39] <daveake> That is strange. How many satellites does it claim to see?
[17:41] <navrac> well its seeing at least one as it is picking up the time after powering down - it then starts providing lat/long but with NF for no fix.
[17:41] <daveake> ok. Needs 3 for a fix.
[17:42] <daveake> 4 for altitude
[17:43] <navrac> basically the pin for the aerial tuner broke off, so I've bodged a pin in its place and now trying to tune the aerial - this afternoon before I broke it, it worked ok but took a long time to fix and on eco mode would take 20 mins to get a fix
[17:43] <number10> how good is the antenna - are you inside?
[17:43] <navrac> its outside my study on a 5 foot pole...
[17:44] <number10> must be pretty deaf then
[17:44] <navrac> yep - its too dependent on ground planes at the best of times in eco mode
[17:45] <daveake> The small antenna for the Lassen is better with one, though it works OK without.
[17:45] <daveake> Te fsa03 works very well without
[17:46] <number10> i presume you are doing a pico navrac, if you are running in eco
[17:46] <navrac> yep, was going to do a couple of quick picos to test the design out
[17:46] <navrac> while i wait for the summer and more favourable winds
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[18:22] <SpeedEvil> https://twitter.com/#!/IainDuncanSmith hahahhahhahha
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[18:48] <Upu> evening
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[18:56] <cuddykid> oh wow - the 5v reg gives out a *lot* of heat
[18:57] <cuddykid> the back of it is very hot
[18:57] <Upu> something wrong with it ?
[18:57] <Upu> got a board running here on 3.3v and vreg is cool
[18:57] <cuddykid> don't think so - feeding in 6aa's
[18:57] <cuddykid> guess it's just huge heat dissipation
[18:57] <Upu> ok
[18:58] <fsphil-laptop> do you have anything that draws a lot of current?
[18:58] <cuddykid> the part for it on spark fun allows for heat sink
[18:58] <cuddykid> fsphil-laptop: nope, nothing atm, just got the atmega328 running alone
[18:58] <fsphil-laptop> that shouldn't get hot
[18:58] <LazyLeopard> Using it to drop voltage a long way?
[18:58] <cuddykid> from ~9V to 5V
[18:59] <cuddykid> I'll swap it with another and check
[19:00] <fsphil-laptop> is the avr getting warm?
[19:00] <Upu> http://imagebin.org/195498
[19:00] <Upu> wrong channel
[19:01] <cuddykid> avr is fine
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[19:02] <cuddykid> new reg is hot
[19:03] <cuddykid> also, according to the arduino analog pin - (as I don't have a voltmeter atm) the v out from 3.3v reg is 3.45/46 ish
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[19:10] <nosebleedkt> http://www.youtube.com/watch?v=9i3ljxdkN_k
[19:10] <nosebleedkt> which country in EU got redheads?
[19:10] jcoxon (~jcoxon@87.113.154.17) joined #highaltitude.
[19:11] <Hiena> nosebleedkt: Ireland
[19:11] <nosebleedkt> damn, its too far!
[19:11] <nosebleedkt> need to wait for summer tourists, lol
[19:12] <fsphil-laptop> scotland
[19:12] <Hiena> Well, we have rednecks, rednoses, and brownies.
[19:12] <fsphil-laptop> although they might eat you
[19:12] <nosebleedkt> scots are cannibals?
[19:13] <nosebleedkt> Hiena: where r u from ?
[19:14] <fsphil-laptop> deep fried nosebleedkt
[19:14] <nosebleedkt> what tha?
[19:14] <nosebleedkt> fsphil-laptop sometimes u know i dont the english argo :P
[19:15] <nosebleedkt> i don't get*
[19:15] <fsphil-laptop> nosebleedkt, http://en.wikipedia.org/wiki/Deep-fried_Mars_bar
[19:15] <fsphil-laptop> some people in scotland like to deep fry everything :)
[19:16] <nosebleedkt> eee
[19:16] <fsphil-laptop> the national dish is the heart, liver and lungs of sheep
[19:16] <number10> mars bar tigantitas
[19:17] <fsphil-laptop> actually quite nice
[19:17] Laurenceb_ (~Laurence@host31-52-255-133.range31-52.btcentralplus.com) joined #highaltitude.
[19:18] <nosebleedkt> number10 you lol
[19:18] <nosebleedkt> tiganites
[19:18] <nosebleedkt> hahaha
[19:18] <nosebleedkt> i hate you
[19:18] <number10> yea well my englis spelling is worse
[19:19] <number10> you see ... should be english
[19:19] <fsphil-laptop> I only speak English, but it's my second language.
[19:19] <nosebleedkt> i hate you
[19:19] <nosebleedkt> opps
[19:19] <nosebleedkt> sory
[19:20] <nosebleedkt> first? body lang?
[19:20] <nosebleedkt> :P
[19:20] <joph> he's a native latin speaker :P
[19:21] <nosebleedkt> oh lol
[19:21] Dutch-Mill (3e2d8519@gateway/web/freenode/ip.62.45.133.25) joined #highaltitude.
[19:21] <nosebleedkt> i die to see fsphil dancing tango with some latina bigass girl
[19:21] <nosebleedkt> lol
[19:22] <fsphil-laptop> I may actually die too :p
[19:22] <nosebleedkt> lola
[19:22] <fsphil-laptop> hiya Dutch-Mill
[19:23] <jcoxon> evening all
[19:23] <fsphil-laptop> g'day jcoxon
[19:23] daveake_ (~daveake@daveake.plus.com) joined #highaltitude.
[19:23] <Dutch-Mill> HiYall
[19:24] <number10> plans for necx pico jcoxon?
[19:24] <number10> next
[19:25] <Laurenceb_> its not going to burst this time?
[19:25] <Laurenceb_> ?
[19:25] <jcoxon> number10, ummm having an issue with the power stuff
[19:25] <jcoxon> so have put it to the side currently
[19:25] <jcoxon> while i ponder
[19:25] <jcoxon> currently playing with my SPoT tx'er
[19:26] <number10> good... no rush, as we will be getting entertainment with daveake_ s cloud 3 should the forcast improve
[19:26] <jcoxon> might be a long duration floater coming up
[19:26] <jcoxon> in a few weekends time
[19:27] <Laurenceb_> lots of time to fine tune your diet
[19:28] <Upu> evening jcoxon
[19:28] <jcoxon> number10, if we do go for a howyee floater we'll launch from suffolk
[19:28] <jcoxon> welcome to help out with the launch
[19:29] <Laurenceb_> we need some hydrogen
[19:30] <griffonbot> Received email: Adam Greig "[UKHAS] Balloon positions by SMS"
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[19:31] <number10> jcoxon: well that would be nice, thank you - not sure what help I could be - maybe on a field edgge making sure the signal was strong and no tx problems before launch
[19:31] <jcoxon> number10, there are always roles to play...
[19:32] <NigeyS> oo a bit of roleplay ? :p
[19:32] Action: SpeedEvil attempts to play a petit pain, and jams his CD player.
[19:32] <NigeyS> lol
[19:33] <Upu> NigeyS http://www.amazon.co.uk/Weather-Balloons-Make-Rotten-Toys/dp/B002AJGOBS/ref=sr_1_1?ie=UTF8&qid=1327519997&sr=8-1 ?
[19:33] <NigeyS> oh dear lord...lol
[19:33] <Laurenceb_> http://groups.google.com/group/ukhas/browse_thread/thread/49f38a124ef5cb5d
[19:33] <daveake_> I posted that earlier this week :)
[19:33] <Laurenceb_> heh is that 4 real?
[19:34] <Randomskk> yes
[19:34] <Randomskk> you could text it and see :P
[19:34] <Laurenceb_> it looks like some sort of crazy spam thing :P
[19:34] <Laurenceb_> cool if it works
[19:34] <NigeyS> Randomskk, neat idea! :D
[19:34] <Randomskk> hopefully I'm slightly more trustworthy than a crazy spammer :P
[19:35] <Randomskk> it's a bit of fun. I might add a voice service too
[19:36] <Laurenceb_> "at the third pip your balloon will have landed"
[19:36] <NigeyS> lol
[19:36] <Upu> haha
[19:36] <Randomskk> :D
[19:36] <Upu> "press 1 to locate your payload, press 2 to cut down press 3 to speak to an operator"
[19:36] <NigeyS> Randomskk, you'd need a nice sexy female voice
[19:36] <Upu> "press 4 to badger David Miller for the 5th time this month"
[19:37] <daveake_> "Press 1 to call
[19:37] <Randomskk> hahaha
[19:37] <daveake_> oops
[19:37] <NigeyS> rofl upu!!!
[19:37] <Upu> wait
[19:37] <daveake_> "Press 1 to call for a boat; 2 for a tree feller, ..."
[19:37] <Upu> I have a plan, anyone got David Millers mobile ? :))))
[19:37] <Randomskk> 3 to be patched through to your nearest tree surgeon
[19:37] <Upu> TXT NOTAM to 07899 xxxxxx
[19:37] <daveake_> DangerMouse got me my notam today, so don't knock him :)
[19:38] <daveake_> "Press 4 to apply fixes to the usual GPS payload bugs"
[19:39] <NigeyS> "Press 9 to activate aprs over u.k airspace"
[19:40] <Upu> yeah like getting your RX & TX lines mixed up : http://imagebin.org/195436 :/
[19:40] <NigeyS> we all missed that cockup upu lol
[19:40] <Upu> still works :)
[19:40] <Upu> after some surgery
[19:41] <NigeyS> aye, swift just had minor surgery
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[19:42] <cuddykid> I like the new text thing
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[19:43] <cuddykid> David Miller: 020 7453 6585
[19:43] <cuddykid> I've had to use that numerous times in the past
[19:44] <cuddykid> and no doubt will be using it numerous times in the coming weeks
[19:45] <cuddykid> right - I think I'm going to run everything on 3.3v (saves the nuisance or having 2 voltages) - is there any downside?
[19:45] <Randomskk> avr can only run at 8mhz
[19:45] <Randomskk> not 16 or 20
[19:45] <Randomskk> talking to 5v kit can be a pain
[19:46] <Randomskk> need a 3v3 ftdi cable
[19:47] <NigeyS> u can do 16mhz at 3.3
[19:47] <NigeyS> but its out of spec
[19:47] <Randomskk> well, yes
[19:47] <cuddykid> arduino uno runs at 8mhz already doesn't it?
[19:47] <NigeyS> not had a problem personally...
[19:47] <Upu> 16Mhz AFAIK cuddykid
[19:48] <Upu> Arduino Pro 3.3v run @ 8Mhz
[19:48] <cuddykid> oh bollocks, that means my 16mhz resonator will be obselete
[19:48] <cuddykid> hmm
[19:48] <cuddykid> may just stick with 5v for main and then use 3.3v reg for gps
[19:49] <NigeyS> if ure not sending data to the gps dont worry about the 3.3 just dont connect the rx pin for it
[19:50] <cuddykid> I'll need to send data to configure it :(
[19:51] <NigeyS> which module ?
[19:52] <cuddykid> ublox6
[19:52] <cuddykid> neo6q
[19:52] <cuddykid> I may roll with a lassen instead if it saves a headache :P
[19:52] <NigeyS> :p
[19:53] <cuddykid> I think I'll use a lassen despite my irritation with their locking capability
[19:53] <daveake_> If you're choosing 5V because you have a 16MHz resonator, just spend a few pennies on an 8MHz resonator
[19:53] <jcoxon> cuddykid, eek lassen will be slow
[19:53] <jcoxon> for glider stuff
[19:54] <cuddykid> jcoxon: this isn't the glider stuff, just custom pcb for standard hab stuff :D
[19:54] <cuddykid> daveake_: I'm going to have a think as I would need to buy ublox etc, already got all the stuff required for lassen
[19:56] <cuddykid> looks like rjharrison ran his at 4mhz
[19:59] <cuddykid> does the ublox 6 require configuring? or will it just run "out the box" with correct nmea stuff?
[20:00] <jcoxon> cuddykid, apart from above 12km yeah
[20:01] <jcoxon> need to set the nav mode
[20:01] <cuddykid> cheers
[20:06] <cuddykid> a simple pot divider should work to scale down 5v to 3v3 for serial TX/RX stuff?
[20:07] <Randomskk> that'l do for 5v -> 3v3 but not 3v3->5v, however the 3v3->5v is likely to Just Work anyway
[20:09] <joph> depends on your circuit
[20:10] <joph> but a "good" 3V3 signal can be recognized by a 5V input
[20:10] <cuddykid> yeah, 5V -> 3v3 is all I would need. My current 3v3 signal from lassen can be picked up fine by arduino
[20:10] <joph> have a look at your datasheet
[20:12] <joph> you can always add a circuit existing out of 1-2 transistors for make out auf 3V3 5V, but that's in the most cases not necessary
[20:16] <daveake_> My first payload used a 5V Arduino, and had 3V3 GPS, phone, SD card and pressure sensor. Didn't need anything other than the pot dividers.
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[20:20] <cuddykid> yep, I think I will go with that. Pot divider for gps serial comms, and 3v3 reg for power to gps
[20:35] <Elwell> anyone here used mouser for components?
[20:41] <nosebleedkt> fs
[20:41] <nosebleedkt> fsphil-laptop
[20:41] <nosebleedkt> fsphil-laptop: http://thechive.files.wordpress.com/2012/01/amazing-landscape-wallpapers-2.jpg?w=920&h=516
[20:41] <nosebleedkt> is that place somewhere up there?
[20:50] <fsphil-laptop> not here nosebleedkt
[20:50] <fsphil-laptop> looks more like the south coast of england
[20:50] <nosebleedkt> isnt that ireland?
[20:50] <nosebleedkt> its a dream place for me. wanna go there. looks like the end of the world
[20:50] <fsphil-laptop> nowhere near here anyway
[20:51] <nosebleedkt> :P
[20:51] <fsphil-laptop> I don't think there are any white cliffs here
[20:57] <Elwell> http://www.tineye.com/search/d0e17cf47867bdf9fac4da9e4be776da87e5bc4b for the other 27 copies of it
[20:58] <fsphil-laptop> Sussex
[20:58] <Elwell> Seven Sisters Cliffs, near Seaford town, East Sussex, England
[20:58] <Elwell> even :-)
[20:59] <fsphil-laptop> near Eastbourne -- I was pretty near there a while back
[21:01] <Elwell> sadly streetview got stopped at the barrier, but there's loads on panorimo
[21:01] <Elwell> http://g.co/maps/xsgja
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[21:14] <GeekShadow> hey
[21:14] <GeekShadow> who is behind the lego man sent ?
[21:14] <GeekShadow> :D
[21:25] chris_99 (~chris_99@unaffiliated/chris-99/x-3062929) joined #highaltitude.
[21:27] <eroomde> oh that was meant to be a pm
[21:27] <eroomde> sorry for noise
[21:28] <eroomde> for context, jcoxon also stayed at the same hostel
[21:32] Gillerire (~Jamie@182-239-141-122.ip.adam.com.au) joined #highaltitude.
[21:34] <fsphil-laptop> I've still got that place bookmarked
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[21:39] <eroomde> mmm worth it
[21:39] <eroomde> well, if you are in any dubt
[21:40] <eroomde> watch this from 3:30 http://www.youtube.com/watch?v=GZ8xd6xnZ9U
[21:41] <fsphil-laptop> I remember that!
[21:44] <fsphil-laptop> the one good aurora I seen here was fantastic. huge pillars that all looked like they where pointing straight at me
[21:44] <fsphil-laptop> and a nice bright red and green patch just before it disappeared
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[21:46] <Upu> evening CovBalloon
[21:46] <CovBalloon> hi
[21:46] <CovBalloon> back a little later than expected
[21:46] <Upu> probably the best time for answers most people are on
[21:47] <CovBalloon> great, just looking for a reciever
[21:47] <Upu> FT-817
[21:47] <Upu> there are some cheaper ones
[21:47] <CovBalloon> nice but expensive
[21:48] <CovBalloon> very capable unit
[21:48] <Upu> yeah
[21:49] <Upu> reminds me actually one of the projects I suggested to RJ for the Farnell thing was a cheap i.e sub £50 70cms receiver kit for HAB
[21:49] <Upu> give me a sec
[21:50] <Upu> whats the cheapy old Yaesu 70cms tranciever ?
[21:51] <Upu> everyone's asleep I can't recall the number
[21:52] <Upu> but they go on E-Bay for about £100
[21:54] <daveake_> 917?
[21:54] Hiena (~boreger@81.93.195.181.datatrans.hu) left irc: Remote host closed the connection
[21:55] <gonzo_> ft790
[21:55] <daveake_> 790
[21:55] <Upu> thats the one
[21:55] <daveake_> too slow :)
[21:55] <Upu> http://www.ebay.co.uk/itm/Yaesu-FT-790R-70cm-Multimode-Radio-/190630723684?pt=UK_ConsumerElectronics_SpecialistRadioEquipment_SM&hash=item2c627a0064
[21:57] <Upu> alternatively pop down to your local HAM club sure they'll be happy to assist
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[22:00] <CovBalloon> good advice, thanks
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[22:01] <Upu> there are some super cheap handhelds coming from China but I don't know if they do the SSB needed
[22:01] <fsphil> none that I've seen anyway
[22:01] <Upu> fsphil does the Beofungchow do it ?
[22:02] <Upu> ok
[22:02] <fsphil> they're all FM
[22:02] <Upu> ok
[22:02] <Upu> shame they would be perfect
[22:02] <fsphil-laptop> definitely.
[22:04] <Upu> anyone mailed them to ask if they do one that does support SSB ?
[22:06] <daveake_> The ones I saw had a smallest frequency step of 5kHz, if I read it right, making them pretty useless anyway
[22:07] <Upu> dog needs a walk bbs
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[22:09] <SpeedEvil> daveake_: Well - it dpends on the width
[22:09] <SpeedEvil> 4khz with a 10khz bandwidth would work fine
[22:09] <fsphil-laptop> there's a lot of interesting radio ICs out there, I'm sure one of them could form the basis of a really simple SSB tuner
[22:10] <daveake_> SpeedEvil oh, so can fldigi's width be increased?
[22:14] <fsphil-laptop> up to 4khz without hacking
[22:14] <SpeedEvil> In principle - sure.
[22:14] <SpeedEvil> It's just code
[22:14] <SpeedEvil> but...
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[22:23] <Laurenceb_> what are people talking about?
[22:23] Action: Laurenceb_ lazy
[22:24] <daveake_> No idea
[22:24] Action: daveake_ stupid
[22:24] <Laurenceb_> oh receivers
[22:24] <Laurenceb_> funcube dongle
[22:25] <Laurenceb_> or my device - http://ukhas.org.uk/guides:chipcon_cc1020_software_define_radio
[22:27] <eroomde> bbc 2 now
[22:27] <Laurenceb_> yeah ok i know
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[22:29] <Laurenceb_> i was watching Jonathan Meades on France
[22:30] <daveake_> eroomde Yeah, saw that!
[22:30] <eroomde> in what sense was he on it?
[22:31] <Upu> interesting Laurenceb
[22:31] <Upu> whats on BBC2 now ?
[22:31] <daveake_> (was) HIGNFY
[22:31] <Upu> oh
[22:31] Robert_M0RJX (~rharrison@62.49.185.11) joined #highaltitude.
[22:32] <Upu> oh good evening :)
[22:32] <Upu> stranger returns
[22:32] <Robert_M0RJX> Hello
[22:32] <Upu> evening :)
[22:32] <Robert_M0RJX> Hey Upu thanks for the email
[22:32] <Robert_M0RJX> I havn't braved the videos yet
[22:32] <Upu> glad to see it got off the ground no pun intended
[22:32] <Laurenceb_> http://www.bbc.co.uk/iplayer/episode/b019m5yy/sign/Jonathan_Meades_on_France_Fragments_of_an_Arbitrary_Encyclopaedia/
[22:32] <eroomde> Laurenceb_: do you have much filtering on it?
[22:33] <daveake_> http://www.youtube.com/watch?v=QcaezQCYqKQ
[22:33] <Laurenceb_> nope
[22:33] <Upu> since we discussed that idea : http://www.hoperf.com/pro/rf/fsk/rfm22b.htm
[22:33] <Laurenceb_> eroomde: just an eval board and avr
[22:33] <eroomde> ok
[22:33] <eroomde> impressed it worked at all :)
[22:33] <Laurenceb_> i have a RFMD lna on the front now
[22:33] <Upu> might even enter the competition myself so I get to meet you Rob :)
[22:33] <Robert_M0RJX> Ad a bit of bad news a couple of weeks back the old man has been diagnosed with metastatic melanoma
[22:33] <Laurenceb_> veyr impressive with the 1dB NF amp on the front
[22:33] <eroomde> that's promising them for something like the addition of an LNA and saw as you mentioned
[22:34] <Upu> Doesn't sound good
[22:34] <Laurenceb_> yeah you can see from the reception in cambridge, it suffers from the broad bandwidth and 3 bit adcs
[22:34] <Robert_M0RJX> upu no 2 - 6 months and he's feeling fine ATM
[22:35] <daveake_> eek
[22:35] <Laurenceb_> http://ukhas.org.uk/_media/guides:waterfall_2atlas.png?cache=
[22:35] <Robert_M0RJX> Still at work and only 64
[22:35] <Robert_M0RJX> RFM222B looks good
[22:35] <Upu> thats young he had you early
[22:35] <daveake_> Mine died on Xmas day, swiftly with a heart attack. Much better way to go
[22:35] <Laurenceb_> vertical banding is from out of band (but within the 256khz IF bandwidth) interference
[22:35] <Robert_M0RJX> That means i'm old :-)
[22:35] <Laurenceb_> thats the only issue with the cc1020
[22:35] <Upu> you are old
[22:36] <Upu> :)
[22:36] <Robert_M0RJX> Cheers ;-)
[22:36] <Upu> lol
[22:36] <Robert_M0RJX> You on 155.600
[22:36] <Robert_M0RJX> 144
[22:36] <Upu> nah wife in bed
[22:36] <Laurenceb_> horizontal RTTY is a NTX2 at 280km
[22:36] <Robert_M0RJX> Oh yep it's getting late
[22:36] <Upu> but its on as soon as I get home if you're about tomorrow
[22:37] <Upu> trouble with having the office next to the bedroom
[22:37] <Robert_M0RJX> Sure ok have quite a bit to feed back on
[22:37] <fsphil> digital mode :)
[22:37] <Upu> sure
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[22:38] <eroomde> yeah digital!
[22:38] <Upu> we tried SSTV once fsphil and got told off by the HAM police
[22:38] <fsphil> ah, ignore them
[22:38] <fsphil> or use SSDV -- that'll really annoy them
[22:39] <eroomde> fergusnoble and i had a period of doing cusf work in cam coomunicating via psk31
[22:39] <Robert_M0RJX> lol i can believe that eroomde
[22:39] <eroomde> cos the 100Mb network connecting our rooms was so 2010
[22:39] Action: fsphil recently did IRC over 1200 baud AX.25
[22:40] <fsphil> actually worked pretty well
[22:40] <Upu> http://imagebin.org/195551 new Ava Rob
[22:40] <Upu> coming along
[22:41] <eroomde> you could do an italian hab upu
[22:41] <Upu> suppose I ought to chase our friend in London, that NOTAM request has nearly been in 12 months
[22:41] <eroomde> ava-notta-clue
[22:42] <Upu> thats so bad a joke its mildly funny eroomde
[22:43] <Robert_M0RJX> Upu very nice board
[22:43] <Upu> very small and somethings up at the moment the shift is 4khz :)
[22:43] <Upu> one of the pins is stuck at GND
[22:43] <Robert_M0RJX> Upu we do need to kick arse with DM as he has just given a NOTAM for elvington to Steve from Boston Spa
[22:44] <Laurenceb_> http://www.sequoia.co.uk/components/product.php?d=2&c=102&f=244&p=1285&fmt=grid&pg=product
[22:44] <Upu> Steve Randal ?
[22:44] <Upu> oh Steve from
[22:44] <Laurenceb_> that thing is insane
[22:44] <Upu> sorry tired
[22:44] <Upu> hows that work ?
[22:44] <Robert_M0RJX> Boston Spa school
[22:44] <Upu> an open ended one ?
[22:44] <Laurenceb_> MB-LPS1-01-010U5N 0-25Pa 0-0.1"H20 0-0.0036PSI <- what the...
[22:45] <Robert_M0RJX> No for a week when we are doing a teacher traning session at York Univerity's National Science and Learning Centre
[22:45] <Upu> ok
[22:45] <Upu> still
[22:46] <Robert_M0RJX> How did you get on with the SMD soldering it's not too bad is it
[22:46] <Upu> prefer it
[22:46] <Robert_M0RJX> Yep me too
[22:46] <Upu> though I did trash a AVR today
[22:46] <Robert_M0RJX> It's a whole load cleaner
[22:46] <joph> smd is great ;)
[22:46] <joph> easy to solder
[22:46] <Upu> don't solder when you've not had dinner and your hands are shaky
[22:46] <Robert_M0RJX> Get the air gun out
[22:46] <Upu> once I discovered the amazing substance that is flux
[22:47] <Upu> and its partner SolderSIP
[22:47] <joph> Robert_M0RJX, i prefer for the most things a fillet tip
[22:47] <Upu> Well I did get hot air out to remove it
[22:47] <joph> cause it's faster than hot air :D
[22:47] <Upu> and managed to crack the chip
[22:47] <joph> yeah, for removing hot air is very good
[22:48] <Upu> my own stupid fault I'd left the hot air on the setting for doing shrink wrap
[22:48] <Upu> so it wasn't hot enough
[22:48] <Robert_M0RJX> Yep I use a weller WD1 for my stuff
[22:48] <Upu> I have 10 of these boards to play with though
[22:48] <joph> nice
[22:48] <Robert_M0RJX> Upu well at few quid each it won't break the bank
[22:48] <Upu> Blackjack SolderWerks 6000 we have at work we use it for laptop repairs
[22:48] <Upu> nah
[22:48] <joph> i'm using a ws81 from weller and in a few months i'll buy a hot air station from aoyue
[22:48] <Upu> $2 each
[22:48] <Upu> :)
[22:48] <Robert_M0RJX> i have three envelops for you here
[22:49] <Upu> oh sweet
[22:49] <Robert_M0RJX> With the remains of that order in
[22:49] <Upu> did the second order go in ?
[22:49] <Robert_M0RJX> Plus farmell have extended my 3 other tokens
[22:49] <Robert_M0RJX> I will
[22:49] <Robert_M0RJX> it
[22:49] <Upu> thats cool whenever
[22:49] <Upu> I'll pop over some time
[22:49] <Robert_M0RJX> Sure or shall I pop them in the post
[22:50] <Robert_M0RJX> not sure if I have your address
[22:50] <Upu> Well not desperate for them at the moment
[22:50] <Robert_M0RJX> A few newbs in here these days I have pointed a few to UKHAS
[22:50] <Upu> connectors which I had a few spare, I'm out of them now so will need if I make any more boards
[22:51] <Upu> yeah nearly always above 75 people
[22:51] <Upu> you missed the transatlantic
[22:51] <Upu> we had 120 in here was quite exciting
[22:52] <fsphil-laptop> yea, that was impressive
[22:53] <Robert_M0RJX> wow how far did it go
[22:53] <Upu> lol
[22:53] <Upu> launched in California (!)
[22:53] <Upu> as a deliberate attempt to float
[22:53] <Robert_M0RJX> landed in ?
[22:53] <Upu> however it didn't burst when the sun came up
[22:53] <Upu> the Med
[22:54] <Upu> left USA range (Nova Scotia) then was picked up a day and half later by the Azores
[22:54] <Robert_M0RJX> Cool
[22:54] <Upu> where it was tracked across spain and out in to the med
[22:54] <Upu> accidental
[22:54] <Upu> silly hwoyee balloons not bursting
[22:54] <Upu> however was a very interesting 3 days
[22:54] <Upu> http://californianearspaceproject.com/images/CNSP-11/CNSPb.jpg
[22:54] <Upu> did that
[22:55] <Upu> blank bit was no APRS stations
[22:55] <Upu> think it was 3 and a bit full days in the sun ?
[22:56] <fsphil-laptop> stations had to retune to the US APRS frequency to hear it
[22:57] <fsphil-laptop> the odds really where against it
[22:57] <Upu> caused all sorts of drama on qrz.com HAMs complaining it wasn't transmitting the correct call sign :)
[22:57] <Robert_M0RJX> wow quite amazing
[22:58] Action: Laurenceb_ zzz
[22:59] <Upu> anyway I'm going to call it a night
[22:59] <daveake_> nn
[22:59] <Upu> I'll be on the radio when I get in tomorrow usual frequency Rob
[22:59] <Upu> night all
[22:59] <fsphil-laptop> nites Up
[22:59] <fsphil-laptop> Upu even
[23:01] <Robert_M0RJX> me too
[23:01] <Robert_M0RJX> nights
[23:01] <daveake_> nn
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[00:00] --- Thu Jan 26 2012