highaltitude.log.20140206

[00:00] <Prometheus> The trick I use is I make a gore pattern from foan 2 pieces and I sanwich the poly I'm sealing between them
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[00:01] <Prometheus> The poly I'm using is .3mil the thinist stuff you can buy
[00:02] <Prometheus> The only differenc between that and the say Raven industrys standard ZP balloon is the have a special coating to prevent sorpsion and protect from UV
[00:03] <LeoBodnar> well, I want to float forever hehe
[00:03] <Prometheus> I have actually experimented with streaching the .3mil poly lol
[00:04] <Prometheus> Yeah well my 170,000 cft balloon cos $13,000 USD
[00:04] <Prometheus> and it wont fly for more than 2 weeks
[00:04] <Prometheus> more likely a week
[00:05] <Prometheus> and you would need to be in the artick for long days
[00:05] <Prometheus> I don't spell well in chat lol
[00:05] <LeoBodnar> you have a 170k cft balloon?
[00:05] <Prometheus> Yes a Raven Industries
[00:06] <Prometheus> I plan to use it to launch a rocket into space
[00:06] <Prometheus> way out there
[00:06] <Prometheus> lol
[00:07] <LeoBodnar> oh, we are on a slightly smaller budget here
[00:07] <LeoBodnar> like $5 balloons
[00:07] <Prometheus> Well I got a deal on it :)
[00:08] <Prometheus> but we have benn working 6 years on the project
[00:08] <Prometheus> we fly a lot of low budget stuff
[00:08] <Prometheus> I bought that balloon for a personal vendetta
[00:09] <LeoBodnar> cool, I am only half a year into this
[00:09] <Prometheus> Wow awesome!
[00:09] <LeoBodnar> oh, lol not literally i suppose?
[00:09] <Prometheus> It's really a lot of fun!
[00:10] <Prometheus> I started out chasing radiosondes
[00:10] <Prometheus> woth sondemonitor
[00:10] <Prometheus> I got hooked!
[00:10] <Prometheus> lol
[00:10] <LeoBodnar> we have some sondechasing nuts here
[00:11] <LeoBodnar> mostly from DE and NL
[00:11] <fsphil> I've yet to have a met sonde land near here
[00:11] <Prometheus> Your overthere where they are!
[00:11] <fsphil> they're all landing in scotland at the moment
[00:11] <Prometheus> I had to buy a vasalis sonde to use sondemonitor over here
[00:12] <Prometheus> but it sure is fun chasing sondes :)
[00:12] <LeoBodnar> vaisala? so software comes with a sonde?
[00:12] <adwiens_KC0WYS> what's the point of sondes now that we have weather radar? honest question, i have no idea
[00:12] <Prometheus> Sondemonitor software is great!
[00:13] <Darkside> weathr radar doesnt give you accurate wind speed at altitude
[00:13] <Darkside> nor does it give you temeprature/humidity at altitude
[00:13] <fsphil> you can't measure pressure ant temperature at high altitudes with radar
[00:13] <adwiens_KC0WYS> ah
[00:13] <Prometheus> https://www.coaa.co.uk/sondemonitor.htm]
[00:13] <Darkside> Prometheus: i wrot code to re-program the frequency settings on vaisala sondes
[00:13] <Prometheus> Well yes it does!
[00:13] <Darkside> well, th RS92SGP/s
[00:14] <Darkside> RS92SGPW i should say
[00:14] <Prometheus> yeah the SGP's are the best
[00:14] <Darkside> yes, they have GPS
[00:14] <Darkside> or more accuratly, a GPS frontend and a 1-bit receiver chip
[00:14] <Prometheus> Temp humidity too
[00:14] <Darkside> and it just sends down the samples
[00:14] <Darkside> yeah the temp/humidity snsors on those things are cool
[00:14] <Prometheus> Right there is gold in that GPS
[00:15] <Darkside> i've been meaning to figure out the interface to the temp sensor package
[00:15] <Prometheus> You can cut off the front end and use it fro an awesome GPS preamp
[00:15] <Darkside> yeah wouldnt be surprised
[00:15] <Darkside> i've got a couple of them in a drawer somewhere
[00:15] <Prometheus> Besides that there are no COCOM limits using them
[00:16] <Darkside> well the GPS on them doesnt actually do much
[00:16] <Prometheus> because they are actually a front end
[00:16] <LeoBodnar> can you describe what does it send?
[00:16] <Darkside> it just takes samples, and they get sent back to the ground
[00:16] <Prometheus> for a GPS
[00:16] <Darkside> LeoBodnar: basically th 1-bit samples
[00:16] <Prometheus> Right but there is gold in that dont you see?
[00:16] <LeoBodnar> so if I send sampled GPS data Vaisala can decode it locally?
[00:16] <Prometheus> yep
[00:17] <Darkside> LeoBodnar: sondemonitor does it
[00:17] <Prometheus> or in flight on the patload if you need it
[00:17] <Darkside> you need local ephemeris data or somthing
[00:17] <Prometheus> right
[00:17] <LeoBodnar> I have been playing with this: http://leobodnar.com/balloons/files/GPSsampler.jpg
[00:17] <Darkside> LeoBodnar: bear in mind that these sondes do 2400 baud GFSK
[00:17] <Prometheus> but that's easy to pull off the net
[00:17] <Darkside> so its a few orders of magnitude more data
[00:18] <arko> woah LeoBodnar
[00:18] <arko> nice board
[00:18] <Prometheus> Right you can cut that modem out and use it too
[00:18] <arko> whats the chip in middle?
[00:18] <arko> gps chip?
[00:18] <arko> or mixer sampler?
[00:18] <LeoBodnar> it's SE4110 GPS frontend
[00:18] <Prometheus> nope that's an asic
[00:19] <Prometheus> the front end is the other little chip near the GPS antenna
[00:19] <LeoBodnar> it spits out 19.368msps data samples
[00:19] <Darkside> LeoBodnar: so bear in mind the sondemonitor software is closed source, you cant just dump your data into it and get it to give you a position
[00:19] <Darkside> you'll have to re-code that yourself
[00:19] <Prometheus> Yeah we need to break that code ourselfs
[00:19] <LeoBodnar> the other one is PIC24FJ256DA206
[00:19] <Darkside> Prometheus: http://rfhead.net/?p=56
[00:19] <Darkside> Prometheus: from a loong time ago
[00:20] <Darkside> jeez, 2011 was when i did that..
[00:20] <Prometheus> IAhhh that was you!
[00:20] <Lunar_Lander> good night!
[00:20] <Darkside> lol
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[00:20] <Prometheus> You helped me a lot with that you know
[00:20] <Darkside> top hit for vaisala reverse engineereing :D
[00:20] <Prometheus> Good Night LL
[00:21] <Darkside> im surprised i havent had an email from vaisala yet
[00:21] <Prometheus> lol
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[00:21] <Prometheus> Well I bought a bus pirate to try and help me decode them
[00:22] <Prometheus> but so busy with other things
[00:22] <Darkside> decode what?
[00:22] <Prometheus> figure out the code used in sondemonitor
[00:22] <Prometheus> actually
[00:22] <Darkside> oh
[00:22] <Darkside> yeah thats a lot of work to do
[00:22] <arko> LeoBodnar: nice! whats the experiment for?
[00:22] <Prometheus> figure out how the heck they got the code
[00:22] <Darkside> i'd be inclined to email Bev and ask
[00:23] <Prometheus> I did
[00:23] <Prometheus> lol
[00:23] <Prometheus> No anwser
[00:23] <LeoBodnar> So my idea was to take a sample, calculate pseudoranges and send them down for data crunching
[00:23] <Darkside> i'll bug him when he comes here next
[00:23] <Darkside> LeoBodnar: yep that'd work
[00:23] <Prometheus> maybe you'll have better luck?
[00:23] <Darkside> that may actually b what the vaisala does
[00:23] <arko> does the chip handle the PRN?
[00:23] <arko> before the pic?
[00:23] <Darkside> Prometheus: he comes here for summer
[00:24] <Darkside> stays about 40km away from my place
[00:24] <LeoBodnar> that's just a frontend and, mixer and 1.5bit ADC
[00:24] <Prometheus> I think someone from Vaisalis must have spilled the code
[00:25] <Prometheus> Hey you guy's rockk!
[00:25] <Prometheus> I'm glad I found this place
[00:25] <Prometheus> You speak balloon here!
[00:25] <Prometheus> lol
[00:25] <Darkside> lol
[00:26] <Darkside> Prometheus: i used to hunt met balloons a fair bit
[00:26] <Darkside> and not just the digital ones
[00:26] <Darkside> the analog ones are way more fun to chase
[00:26] <Prometheus> Yeah it's fun
[00:26] <Darkside> obviously a heck of a lto harder to find
[00:26] <Darkside> but i've done it enough times
[00:26] <Prometheus> Lead me to lots of other stuff
[00:27] <Prometheus> Hey that QFH antenna on the sonde and the preamp section are a great preamp for any GPS module
[00:28] <Prometheus> you can cut that part of the circut board out
[00:28] <Prometheus> you just bypass the front end chip there and feed it to your GPS module
[00:29] <Prometheus> Great antenna if you work in the basment too just put it in a jar outside and run you cable
[00:29] <Darkside> its large in comparison to th balloon payloads thes guys fly
[00:29] <Prometheus> yeah
[00:30] <craag> Cue photo of Leo's payload..
[00:30] <LeoBodnar> I am trying to figure out an extremely light and power efficient sampler design
[00:30] <Prometheus> I've been working on a disposable APRS tracker
[00:31] <LeoBodnar> ah, http://leobodnar.com/balloons/B-10/Images/2.jpg
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[00:31] <LeoBodnar> It does APRS and is disposable heh
[00:31] <Prometheus> Woah wtf is that? Cool!
[00:31] <brainles71> LeoBodnar: do you have PCB designs for that thing you could share?
[00:31] <Darkside> brainles71: you dont want to go there
[00:31] <arko> LeoBodnar: oh cool just saw the datasheet
[00:31] <Darkside> brainles71: its coded entirely in PIC assembly
[00:32] <arko> neat chip
[00:32] <Darkside> UNCLEAN UNCLEAN
[00:32] <LeoBodnar> I am still tweaking it but honestly it's all datasheet stuff
[00:32] <Prometheus> I can and will share the disposable tracker
[00:32] <Darkside> brainles71: also thats definitely not a beginners board
[00:32] <LeoBodnar> yeah, software is uncensored
[00:32] <Darkside> 'disposable' is relative
[00:32] <brainles71> hmm thanks Darkside
[00:32] <Darkside> depends how much money you're willing to throw away
[00:33] <Prometheus> http://teamprometheus.org/forum and a whole lot more
[00:33] <Darkside> like, our APRS payloads were about $80 all up
[00:33] <brainles71> also a good point
[00:33] <Darkside> and we weren't really willing to throw them away
[00:33] <LeoBodnar> I think Upu has the same/similar board with ATmel and code online
[00:33] <brainles71> individually Darkside?
[00:33] <Prometheus> These are $25 trackers
[00:33] <Darkside> brainles71: yes, thats raw BOM
[00:33] <Darkside> Prometheus: how the heck do you get all the costs so low though
[00:34] <Darkside> without buying in massive bulk
[00:34] <Prometheus> 5 watt also but can be tuned lower
[00:34] <Darkside> like, the GPS is already about $15
[00:34] <Darkside> for one that actually works >18km anyway
[00:34] <Prometheus> Yeah the amp is a quad buffer chip
[00:35] <Darkside> also you do NOT neds 5W in a balloon payload
[00:35] <Darkside> LeoBodnar's board does 10mW and gets out just fine in the air
[00:35] <Prometheus> using a crystal harmonic to tune to 144.39
[00:35] <Darkside> i've flown 300mW
[00:35] <Darkside> and we had >1000km paths
[00:35] <Prometheus> 300mw is good
[00:36] <LeoBodnar> Yeah, I had 400km repeatable APRS hits on 15mW
[00:36] <Maxell> Prometheus: how do you retune after you enter europe?
[00:36] <Darkside> Maxell: he's in the US
[00:36] <LeoBodnar> From Tunisia border to Spain
[00:36] <Prometheus> Yeah with 5 watts I have hit repeaters over 400 miles away
[00:36] <Prometheus> not nessacary
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[00:37] <Maxell> By never leaving US soil? works
[00:37] <Maxell> ok sleeps time
[00:37] <Prometheus> Oh Max I'll work on that
[00:38] <Prometheus> nite
[00:38] <brainles71> LeoBodnar: aren't your payloads low altitude? (4km)
[00:38] <Prometheus> mine?
[00:39] <LeoBodnar> usually about 9km but I flew a few foil balloons at 13-14km and few latex ones at 35km
[00:40] <brainles71> cool :) your going for range rather than height aren't yoy?
[00:40] <brainles71> *you
[00:41] <LeoBodnar> mostly time but range too
[00:41] <brainles71> nice
[00:43] <brainles71> do you ever get the tracker returned to you by groups in other countries?
[00:43] <brainles71> i understand they are disposable
[00:44] <Prometheus> Low altitudes might be more dangerous?
[00:44] <brainles71> If your sitting in the flight path then yes
[00:44] <brainles71> but the chances of an object that small being hit is small
[00:45] <brainles71> LeoBodnar: balloons are small. About half a meter?
[00:46] <Prometheus> Yeah that's small
[00:46] <brainles71> with only the tracker attached its unlikely to cause any trouble in the airway
[00:46] <brainles71> NOTAM cover your arse anyway
[00:46] <brainles71> LeoBodnar: do you have to report the position of the tracker to your air authority?
[00:47] <Prometheus> up to 12 lbs no
[00:47] <SIbot> In real units: 12 lbs = 5.4 kg
[00:47] <Prometheus> lol
[00:48] <Prometheus> there are some other things like surface area of the payload and no more tha 7 lbs in any one box
[00:48] <SIbot> In real units: 7 lbs = 3.2 kg
[00:49] <brainles71> we don't have to notify anyone if the payload is less than 50g
[00:49] <Prometheus> so to fly 5.4 Kg you need 2 paylaod boxes
[00:49] <brainles71> if its below 4kg we just have to let them know we are launching and this is the planned flight path
[00:50] <Prometheus> wow
[00:50] <brainles71> I'm in Australia with Darkside (different parts of the country though)
[00:50] <Prometheus> yeah it's a little more open here
[00:51] <brainles71> yeah
[00:51] <Prometheus> You know Rober Brand in Aus?
[00:51] <Darkside> haha
[00:51] <Prometheus> Robert
[00:51] <Darkside> i do
[00:51] <Prometheus> lol
[00:51] <Darkside> he's probably th most activ ballooning person atm
[00:51] <Darkside> ever since project horus kind of slowed down
[00:51] <brainles71> i have seen his site
[00:52] <Prometheus> He's been on our team for a few years
[00:52] <Darkside> ahh!
[00:52] <Darkside> right
[00:52] <Prometheus> he's kinda been doin his own thing for a while now
[00:52] <Darkside> i remember talking to him about something goign on overseas
[00:52] <Prometheus> He's a fun guy!
[00:52] <Darkside> anyways, i'm hoping to get a crossband repeater up for the WIA public outreach day thing
[00:53] <Darkside> april 11-13
[00:53] <Darkside> that weeknd
[00:53] <Prometheus> Hummm sound interesting
[00:53] <Darkside> we'v done it before, we have the repeater basically ready to go
[00:53] <Prometheus> We have a big launch coming up in April same time
[00:53] <Darkside> just hav to get the people together to launch
[00:54] <Darkside> our current problem is manpower
[00:54] <Prometheus> yeah that's always fun
[00:54] <Prometheus> We need some extras to help run mission control
[00:54] <Darkside> lol mission control
[00:54] <Prometheus> well yeah!
[00:54] <Darkside> thats the back sear of our chase vehicles
[00:54] <brainles71> i really need to join a radio club
[00:54] <Darkside> seat*
[00:55] <Prometheus> We are testing a UAV spaceplane
[00:55] <brainles71> very nice
[00:55] <Prometheus> We run a mission control just like NASA
[00:55] <Prometheus> or Space-X
[00:55] <Prometheus> Lots to do
[00:56] <Prometheus> We are going to do it live this time on livestream even
[00:56] <brainles71> Prometheus: are you based out of UK?
[00:56] <Darkside> we dont bother with the showmanship stuff tbh
[00:57] <Prometheus> Nope Texas
[00:57] <Darkside> we focus on quick payload recovery
[00:57] <Prometheus> But my wife is from Liverpool
[00:57] <Prometheus> I'm working on getting over there at some point
[00:57] <Prometheus> staying long enough to get citizenship
[00:58] <brainles71> Darkside: how do you handle private property here? do you just jump the fence and go for it? i know most of you payloads land in fields?
[00:58] <Darkside> we do our best to contact th farmer
[00:58] <Prometheus> Yeah it depends
[00:58] <Darkside> particularly if its a crop
[00:58] <brainles71> Prometheus: i have never been to the states
[00:58] <brainles71> i would probably go for the snow fields
[00:59] <Prometheus> well sonds like your in a hotbed of HiBall stuff overthere!
[00:59] <Darkside> http://vimeo.com/34905817
[00:59] <Darkside> excuse the cheesy intro
[00:59] <Darkside> it was for a conference talk
[00:59] <brainles71> Darkside: fair enough :) no body like trampled plantations
[00:59] <Darkside> start about 1:23
[01:00] <Prometheus> Very nice quality photo Darkside!
[01:00] <Prometheus> Gopro?
[01:00] <Darkside> yes
[01:00] <brainles71> i think it would have been unworthy if you didn't put the cheesy into in
[01:00] <Prometheus> :)
[01:00] <Darkside> we have flown other cameras, but thy were for commercial launches and we cant share the video
[01:01] <Prometheus> I have a Cannon 450D DSLR I'm thinking about flying
[01:01] <Darkside> yah we almost flew a 4D
[01:01] <Darkside> but didnt
[01:01] <Prometheus> Wow
[01:01] <brainles71> Darkside: do most of your team have a background in radio?
[01:01] <Darkside> we would have had to replace all the grease in it
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[01:01] <Darkside> brainles71: yeah
[01:01] <Darkside> we're all amateur radio operators
[01:02] <Prometheus> You really need it
[01:02] <Darkside> and most of us had experience in foxhunting before
[01:02] <Prometheus> Get you lisense you wont regret it
[01:02] <Darkside> (radio direction finding)
[01:02] <brainles71> yeah i had a look at that a while ago
[01:02] <brainles71> I'm looking at getting my license now.
[01:02] <Darkside> http://vimeo.com/46031355
[01:02] <Darkside> this was another nice video
[01:02] <Prometheus> Hey Darkside we are doing optical tracking but I'm interested in RSSI tracking
[01:02] <brainles71> probably going to try and join club as well
[01:03] <brainles71> just to get further experience
[01:03] <Darkside> Prometheus: we only use foxhunting once its landed
[01:03] <Darkside> if we havent got a position
[01:03] <Darkside> though thats rare
[01:03] <Prometheus> I was thinking about using a helical array
[01:03] <Darkside> we're usually under the balloon when it lands
[01:04] <Prometheus> Yeah we are working on RTL (return to launch)
[01:04] <Prometheus> so no chasing
[01:04] <Darkside> yeah we cbf
[01:04] <Darkside> the chase is the fun part for us
[01:04] <Prometheus> yeah it really is a great part of it
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[01:05] <Darkside> its the reason we all do it really
[01:05] <Prometheus> till you get old
[01:05] <Prometheus> lol
[01:05] <Darkside> heh
[01:05] <Darkside> we do have cutdown capability
[01:05] <Darkside> we've only had to use it in anger twice i think
[01:06] <Prometheus> yeah you cut the string?
[01:06] <Darkside> yeah
[01:06] <Prometheus> hot wire?
[01:06] <Darkside> yup
[01:06] <Prometheus> good deal
[01:06] <Darkside> http://vimeo.com/46031355
[01:06] <Darkside> theres video of it in there
[01:07] <Prometheus> Wow I hope you'll come to our forum amd help others
[01:07] <Prometheus> your pretty active Darkside
[01:07] <Darkside> not any more
[01:07] <Darkside> this was all over a year ago now
[01:07] <Darkside> i mean, we still have all the gear ready to go
[01:07] <Prometheus> lol a years nothing!
[01:07] <Darkside> we have a few commercial launches in th works
[01:07] <Prometheus> you might get bit again!
[01:07] <Darkside> and we have the ability to go and do a launch fairly easy
[01:08] <Prometheus> we may be able to help you get payloads
[01:08] <Darkside> yeah, but the issue is time
[01:09] <Darkside> the trick is having people available on a weekend where the predictions arent crap
[01:09] <Darkside> we have a number of self-designated 'no-fly' zones around here
[01:09] <Darkside> and we won't launch if th predictd landing site is near them
[01:09] <Prometheus> ahhh I see
[01:10] <Darkside> helps us avoid problems with land access, and helps us avoid power lines
[01:10] <Prometheus> yeah well that's part of the biz
[01:10] <Prometheus> why you get paid
[01:10] <Prometheus> :)
[01:10] <Darkside> a lot of people try and launch on a certain day
[01:10] <Darkside> which we've found never works out well
[01:10] <Prometheus> lol
[01:10] <Prometheus> agreed
[01:11] <Darkside> ok, i must be off, things to do
[01:11] <Prometheus> you need to be part weather man part swami
[01:11] <Prometheus> ahh well Ok Darksid 73's
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[01:34] <Prometheus> Mike?
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[01:50] <turinval> hey what is this?
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[01:51] <brainles71> turinval: what do you mean?
[01:52] <turinval> Sorry first time here.
[01:52] <brainles71> this i a room for high altitude ballooning and the likes
[01:52] <brainles71> photos of space
[01:52] <brainles71> that sort of stuff
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[03:48] <qyx_> it seems that he wasn't interested enough
[04:16] <Prometheus> He's on my team he's just new :)
[04:17] <Prometheus> I posted to my team about this IRC channel
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[04:32] <KT4TK-7> Just launched a foil floater. See http://tkrahn.net
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[04:54] <Prometheus> From am airport?
[04:54] <Prometheus> I guess you had the tracker on for the trip to the launch site?
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[05:00] <Prometheus> You copy that KT4TK ?
[05:04] <KT5TK-7> Sorry. I was just off line
[05:05] <KT5TK-7> And had a typo in my own callsign :0
[05:06] <Prometheus> Ooops lol
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[05:07] <Prometheus> I'm watching aprs.fi
[05:07] <Prometheus> Not moving is there a problem?
[05:09] <Prometheus> Ok I guess the balloon is -5 correct?
[05:10] <KT5TK-7> It's actually moving at > 50 mph
[05:10] <KT5TK-7> Yes, balloon is KT5TK-5
[05:11] <Prometheus> 11,000 and going I see it now
[05:11] <KT5TK-7> Ascending VERY slowly. Maybe trapped in the cloud layer turbulences
[05:11] <Prometheus> Windy dayY
[05:11] <KT5TK-7> It was quite good at the ground.
[05:11] <Prometheus> Yeah when they move that fast sideways they climb a lot slower
[05:12] <KT5TK-7> But we'll have fast Jet Stream
[05:12] <Prometheus> Good Luck!
[05:14] <KT5TK-7> Thanks! Predictions look good: http://predict.habhub.org/#!/uuid=15fd6b82f6d4e3401781ac4c61d4db3f9af53640
[05:19] <Prometheus> Hey your in my nearborhood
[05:20] <Prometheus> We have a launch site in Lampasas and one at Matagorda Penn down near you
[05:21] <Prometheus> What trpe of tracker are you flying?
[05:23] <Prometheus> You launched at night too that will effect climb rate
[05:23] <KT5TK-7> It's my own Pecan Pico4 tracker.
[05:24] <KT5TK-7> You'll find info on my blog
[05:24] <Prometheus> Pecan Pico4 eh :)
[05:24] <KT5TK-7> I'll post some launch pictures in a few minutes.
[05:24] <Prometheus> Great
[05:25] <Prometheus> Hey we just started a new forum just for guy's like you
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[05:25] <Prometheus> http://teamprometheus.org/forum
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[05:26] <Prometheus> We'd like to keep track of your progress so others can benifit
[05:26] <Prometheus> We can also help you your close enough to us
[05:27] <Prometheus> :)
[05:27] <Prometheus> So your balloon is maylar?
[05:31] <Prometheus> Nice tracker!
[05:35] <KT5TK-7> Yes, it's a foil balloon.
[05:35] <KT5TK-7> See some launch pics at http://tkrahn.net
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[05:38] <Prometheus> Nice KT5TK
[05:39] <Prometheus> 3 on your team?
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[05:44] <KT5TK-7> We're 6 here at the moment. Our team has loosely 20 or more members. Depends on the launch.
[05:45] <Prometheus> Nice group
[05:45] <Prometheus> We hav a rocket plane drop coming up in April
[05:46] <Prometheus> Trying for return to launch from 100k
[05:46] <KT5TK-7> We're planning to launch a Hwoyee 1600g floater this Saturday morning
[05:47] <Prometheus> Are you using a valve in the balloon?
[05:47] <KT5TK-7> When and where do you launch the rocket plane?
[05:47] <KT5TK-7> No valve. Just a lightweight payload
[05:48] <Prometheus> The FAA is deciding on Lampasas or Matagorda
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[05:48] <Prometheus> we will know soon
[05:48] <Prometheus> We have a valve design you might like
[05:48] <Prometheus> for floaters
[05:49] <Prometheus> ItWe use ardupilot for control
[05:50] <Prometheus> but we would like to design a lightweight adruino control to go with a tracker like yours
[05:51] <Prometheus> The ardupilot and beelin APRS together are heavy and require a lot of battery
[05:51] <Prometheus> We are geofencing with the ardupilot and using it for cround control
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[05:51] Nick change: Geoff-G8DHE_ -> Geoff-G8DHE-M
[05:51] <Prometheus> ground
[05:52] <Prometheus> I'm using X-Plane to view the telemetry
[05:52] <Prometheus> 900 Mhz video feed
[05:52] <KT5TK-7> Valves are often quite heavy. What do you use?
[05:53] <Prometheus> It's a plastic valve with a voice coil
[05:53] <Prometheus> very light weight
[05:53] <KT5TK-7> 900 MHz is great for video. We use that too for our summer launches
[05:53] <Prometheus> also quick connect for filling
[05:53] <Prometheus> the valve doubles for that
[05:54] <Prometheus> makes for nice fit in 1200g balloons
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[05:54] <Prometheus> no mor tieing folding the neck
[05:54] <Prometheus> this valve can use a spring only as well to control pressure
[05:56] <Prometheus> You balloon is moving right alomg
[05:56] <Prometheus> nice
[05:57] <Prometheus> If we launch at Matagorda we could sure use your help
[05:58] <Prometheus> Our mission control is network enabled
[05:59] <Prometheus> We are using OpticTracker for optical tracking and antenna pointing
[06:00] <Prometheus> It falls back to GPS if it looses opticl lock
[06:01] <Prometheus> You going to follow it threw the night?
[06:02] <Prometheus> I wonder how many digipeaters you would need to cross the ocean
[06:02] <Prometheus> at what spacing
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[07:55] <SpeedEvil> Prometheus: depends on altitude.
[07:56] <SpeedEvil> On an unrelated point.
[07:56] <mfa298> Uggy: reading last nights scrollback your current 9dp is something like 0.1mm accuracy I doubt your gps is that good, 5dp is ~1m accuracy which is probably as good as you'll ever get from the gps (http://en.wikipedia.org/wiki/Decimal_degrees)
[07:57] <SpeedEvil> Are there logs anywhere of accellerometer / mag/gyro data from a balloon at float at>30km?
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[07:58] <ibanezmatt13> morning
[08:00] <SpeedEvil> Morning.
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[08:08] <x-f> morning
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[08:43] <DL1SGP1> morning.
[08:49] Nick change: KingJ_ -> KingJ
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[09:05] <SpeedEvil> Morning.
[09:05] Action: SpeedEvil wonders about training fruit trees for quadcopter picking.
[09:07] <ibanezmatt13> well, unsurprisingly, the hourly forecasts for Elsworth are actually getting worse...
[09:11] Nick change: Sytex_AWAY -> Sytex
[09:11] Action: SpeedEvil wonders about a profitable enterprise.
[09:12] <SpeedEvil> A) Buy 100 tiny rootstocks and apple trees for 300 quid or so.
[09:12] <SpeedEvil> B) Plant in the local area in underused ground.
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[09:12] <SpeedEvil> C) harvest by quadcopter.
[09:19] <MoALTz> probably the first hurdle is the cost of quadcopters (including their likely breakdown/part replacement rate)
[09:20] <MoALTz> the other hurdles are probably more dependant on your technical skills (or on your egomania if you're a millionaire willing to hire people to develop this as it'll be hard to get a return on investment after hiring devs for this)
[09:21] <MoALTz> would probably be a fun project :P
[09:24] <LeoBodnar> good morning *
[09:24] <MoALTz> morning
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[09:34] <fsphil> the solution is always more quadcopters
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[09:38] <Prometheus> Morning
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[09:39] <Prometheus> Looks like KT5TK-5 is progressing nicely
[09:40] <Prometheus> I have some logs with Mag/Gyro/Acc/GPS/Baro and airspeed from 30km
[09:41] <Prometheus> Also some fly back logs from that altitude
[09:41] <Prometheus> 3 crashes one nice landing
[09:41] <Prometheus> Ardupilot logs
[09:41] <SpeedEvil> Prometheus: I'm interested in swinging and twisting - how often sampled?
[09:42] <Prometheus> 50 hz
[09:43] <Prometheus> We solve most of the twisting with wings on the payload
[09:43] <SpeedEvil> ah.
[09:43] <SpeedEvil> What sort of payload is it?
[09:43] <Prometheus> swinging is cut down quite a bit with a short string
[09:43] <Prometheus> Just a foamboard box
[09:44] <SpeedEvil> I'm wondering about micro payloads, and the required performance of goniometers.
[09:44] <SpeedEvil> hmm
[09:44] <Prometheus> goinometers?
[09:44] <SpeedEvil> Gimbals - to point at a constant direction
[09:45] <Prometheus> Ahh yes we have done that with ardupilot
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[09:45] <Prometheus> it has a gimbal control built in
[09:46] <Prometheus> But you need a quadrotor platform
[09:46] <Prometheus> to maintain less roll pitch and yaw
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[09:47] <Prometheus> special props for high altitude and or variable pitch
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[09:48] <Prometheus> We have yet to try pointing an antenna with it though it's on the to do list
[09:49] <SpeedEvil> I've been wondering about laser/optical comms.
[09:49] <SpeedEvil> With ~1 degree or so beamwidth
[09:49] <Prometheus> interesting
[09:50] <Prometheus> We have some regs here about laser power
[09:51] <Prometheus> have you built a ground test unit yet?
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[09:54] <SpeedEvil> No.
[09:54] <SpeedEvil> This would be mostly eye-safe, and NIR anyway
[09:54] <Prometheus> I once upon a time made a laser listeng device by bouncing the beam of a windoe=w
[09:55] <Prometheus> off a window
[09:55] <Prometheus> you can hear inside
[09:55] <Prometheus> :)
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[09:55] <fsphil> I tried that once, couldn't make out words
[09:55] <Prometheus> It will work :)
[09:55] <fsphil> but could hear *stuff*
[09:55] <Prometheus> lots of stuff
[09:56] <fsphil> and a lot of noise
[09:56] <Prometheus> including the AC unit in the house
[09:56] <Prometheus> the voices are quite muffled but you can hear normal conversation
[09:57] <Prometheus> quite talk you would not hear
[09:57] <Prometheus> Charles Pooley at Microlaunchers knows a good deal more about laser comms than I do
[09:59] <SpeedEvil> The comms I'm confident about.
[09:59] <SpeedEvil> The interesting part is getting it light, cheap, and pointed.
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[10:00] <Prometheus> light weight would be nice too right?
[10:00] <Prometheus> ok yeah you said light
[10:00] <Prometheus> humm interesting idea
[10:01] <Prometheus> I use Optracker software for pointin my antennas
[10:01] <Prometheus> It tracks opticaly
[10:02] <Prometheus> I have a laser pointer on it and it does "paint" the target
[10:02] <Prometheus> It uses a Celestron Nexstar telescope (about $250)
[10:03] <Prometheus> goto mount
[10:03] <Prometheus> It works good for balloons
[10:03] <SpeedEvil> I mean of the order of well under 100g.
[10:04] <Prometheus> Well you need a ground side right?
[10:05] <Prometheus> to pick up your laser on the ground
[10:05] <Prometheus> the telescope is about 5 degrees it can see
[10:06] <Prometheus> on low power
[10:06] <SpeedEvil> Air-air
[10:06] <Prometheus> at high power it's about 1 and 1/2 degree
[10:07] <Prometheus> oh wow air to air?
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[10:53] <WillDWork> Prometheus - are you the n-prize Team Prometheus?
[10:54] <Prometheus> Yes
[10:55] <WillDWork> good stuff- i've been keeping an eye- any closer to a space launch?
[10:55] <Prometheus> hopfully in July
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[10:55] <Prometheus> We have a rocke plane test in April
[10:56] <Prometheus> The Condor X-11E
[10:56] <Prometheus> We have to warm up the FAA
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[10:57] <Prometheus> for the rockoon launch in July
[10:58] <Prometheus> Nice group you guys have here!
[10:58] <WillDWork> you're in the right place
[10:58] <Prometheus> Lots more active than anything in the states
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[11:00] <Prometheus> you guy's speak balloon here!
[11:00] <Prometheus> lol I feel like a pig in slop
[11:00] <Prometheus> lol
[11:02] <Prometheus> I've already meet some guy's I've seen there work
[11:02] <Prometheus> over the years here
[11:03] <Prometheus> Got to talk about japan bombing the states with balloons and everythig!
[11:04] <Prometheus> Even got a great link to a PDF that had more information about Fargo's than I could amass in the years I researched them
[11:05] <Prometheus> Lot's more good stuff to come
[11:05] <Prometheus> I feel a balloon reveloution coming on!
[11:06] <Prometheus> I've neeb waiting logn enough eh?
[11:06] <Prometheus> lol
[11:07] <Prometheus> wow deslexic as heck this morning
[11:07] <Prometheus> anyway nice to meet you guy's
[11:09] <Prometheus> I hope to intice some of you well really all of you to our new forum http://teamprometheus.org/forum
[11:10] <Prometheus> Us balloon guy's need to stick together
[11:10] <Prometheus> share information
[11:11] <Prometheus> Do cooler stuff
[11:11] <Prometheus> I've seen some great work here in just 24hrs
[11:12] <Prometheus> KT5TK-5 is on it's way over there he launched last night
[11:12] <Prometheus> aprs.fi
[11:12] <Prometheus> enjoying watching that
[11:20] <fsphil> and breath :)
[11:20] <Prometheus> :)
[11:20] <fsphil> it can be quiet a this time as europe tends to be stuck at work
[11:21] <Darkside> and australia is getting ready for bed
[11:21] <Prometheus> well I do this all day
[11:21] <Prometheus> so I'll try and calm down
[11:21] <Prometheus> lol I'm new to IRC too
[11:24] <LeoBodnar> I am surprise there are too few APRS hits from KT5TK
[11:25] <LeoBodnar> he runs 100mW usually so it must cover dozens of stations
[11:25] <LeoBodnar> and updates seem to be scheduled every 5 min
[11:26] <Prometheus> he did say he set it for 5min to conserve batt
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[11:32] <fsphil> where abouts are you Prometheus?
[11:34] <Prometheus> Lampasas Texas
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[11:37] <fsphil> right in the middle
[11:49] <Prometheus> lots of room
[11:49] <Prometheus> for balloons!
[11:49] <Prometheus> Actually the NASA launch site is not far form here
[11:50] <Prometheus> in Paris Texas
[11:50] <SpeedEvil> In the UK, we can only without permission launch 10000 balloons per square kilometer per 15 minutes. (up to 2m)
[11:50] <Prometheus> haha
[11:51] <Prometheus> looks like you guy's are trying!
[11:51] <Prometheus> :)
[11:52] <Prometheus> I'm really impressed with the work going on here
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[12:33] <stevefro> Hi all. Will a normal PCB take 240v on the tracks
[12:35] <mattbrejza> yes, but there are various rules about width and spacing
[12:35] <mattbrejza> which i dont have a source for :(
[12:36] <stevefro> Ok thanks just want a 5v/240v relay to try a bit of home automation
[12:37] <mattbrejza> just have nice wide tracks with lots of space
[12:38] <mattbrejza> there must be other designs you can find for relays to get some sort of an idea of width / spacing
[12:38] <fsphil> some boards have physical separation between high voltage tracks
[12:38] <fsphil> cuts in the board
[12:38] <mattbrejza> as in cuts in the board
[12:39] <stevefro> Will Google it just sat in car at mo so thought i would ask
[12:40] <mattbrejza> i would assume cuts in the board allow a smaller seperation, so a more compact board
[12:40] <fsphil> a nice indicator on the silkscreen to indicate the hv areas would be good too
[12:40] <mattbrejza> i recently did some HV (500V) on stripboard
[12:40] <fsphil> nice
[12:40] <mattbrejza> 500V and gnd were next to each other
[12:41] <mattbrejza> the current draw of the hv geneator increased when attached to the stripboard, but nothing was using the hv...
[12:41] <fsphil> hah
[12:41] <mattbrejza> so probably not ideal
[12:41] <fsphil> did you turn out the lights?
[12:41] <mattbrejza> i should point out this is a low current GM tube supply
[12:41] <fsphil> might have been able to see something between the tracks
[12:41] <mattbrejza> only increased very slightly
[12:41] <mattbrejza> but i cleaned some crap out between and it got better
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[12:43] <fsphil> 500V DC?
[12:43] <mattbrejza> yea
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[12:48] <LeoBodnar> there are some rules about creepage and clearance distances
[12:49] <LeoBodnar> creepage != clearance
[12:49] <mattbrejza> which are not met by adjacent stripboard tracks
[12:49] <mattbrejza> at 500V
[12:49] <mattbrejza> but hey
[12:50] <LeoBodnar> http://www.pcbtechguide.com/2009/02/creepage-vs-clearance.html#.UvOE1ygTBvc
[12:51] <nats`> if the user can touch potential hasard please use a double isolation
[12:51] <nats`> it's really important
[12:51] <mattbrejza> does a polystrene box held together with gaffa tape count?
[12:52] <nats`> isn't polystrene flammable ?
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[12:53] <mattbrejza> either way the user has already touched it, and he said oww
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[13:02] <LeoBodnar> i wonder if Taser has a CE mark on it
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[13:12] <brainles71> morning guys
[13:12] <fsphil> ahoy there
[13:14] <brainles71> how are you fsphil?
[13:14] <brainles71> doing well?
[13:14] <fsphil> nothing has broken today so far so going well :) you?
[13:14] <brainles71> I'm alright!
[13:14] <brainles71> I need a beer
[13:16] <brainles71> I'm 9 days away from my engagement party and i no longer care about napkin colours
[13:17] <brainles71> it should be good when it gets here though
[13:18] <fsphil> congrats :)
[13:18] <brainles71> thank you :)
[13:21] <brainles71> do things often break in your line of work fsphil?
[13:21] <fsphil> they do seem to
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[13:36] <brainles71> gotta love a food glass of home-brew
[13:36] <brainles71> *good
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[13:37] <brainles71> anyone else do a decent home-brew beer?
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[13:41] <nighthawk> I'm trying to get a coordinate string from my payload up on dl-fldigi. We are receiving a signal but cannot decode it into a string.
[13:41] <nighthawk> any help much appreciated
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[13:42] <Lunar_LanderU> hello
[13:42] <brainles71> welcome back Lunar_LanderU
[13:44] <Lunar_LanderU> thank you
[13:44] <brainles71> nighthawk: i know nothing about dl-fldigi but i would be interested to know how you solve it
[13:46] <fsphil> the usual traps: the two tones are backwards (both radio and fldigi must be in USB mode -- if pressing the RV button in fldigi fixes it, then they're backwards)
[13:47] <fsphil> or the timing is off
[13:47] <fsphil> (usually caused by software serial)
[13:47] <fsphil> or the voltage into the ntx2 is varying causing a lot of noise on the signal
[13:49] <nighthawk> If its receiving a signal from the tracker then shouldn't it automatically decode it into a string of coordinates?
[13:49] <fsphil> not if the signal is flawed
[13:50] <nighthawk> by 'it' i mean fldigi
[13:50] <fsphil> or incorrect in some way
[13:50] <fsphil> fldigi can only decode if it's receiving a clean signal
[13:51] <fsphil> it also needs to be setup with the correct baud rate, shift and encoding mode (7-bit or 8-bit ascii usually)
[13:51] <fsphil> to match what your payload is sending
[13:52] <fsphil> it's worth sharing a screenshot of fldigi trying to decode the signal
[13:52] <fsphil> someone might spot something
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[14:06] <brainles71> any recommendations on radio receiver choice?
[14:07] <Darkside> heh
[14:07] <Darkside> kettle of fish that one
[14:07] <Darkside> on chases, i usually use an Icom IC-R10 handheld
[14:07] <mattbrejza> price range will be a good start
[14:07] <Darkside> but those are out of production and rare
[14:07] <Darkside> heh
[14:07] <Darkside> yep
[14:07] <Darkside> worst case RTLSDR + habamp
[14:07] <mattbrejza> ic-r20 is a good replacement
[14:07] <Darkside> best case, somethign decent
[14:07] <Darkside> mattbrejza: ehhh
[14:07] <Darkside> in some respects, yet
[14:08] <Darkside> but it the R20 doesnt have the wonderful rf gain knob
[14:08] <Darkside> when Icom put out the R10, with that continuous RF gain knob, its like they were targeting the scanner at foxhunters
[14:08] <brainles71> about $300 on ebay
[14:08] <Darkside> with that dial, you can get about 120dB attenuation
[14:08] <brainles71> http://www.ebay.com/itm/ICOM-IC-R10-/231151713974?pt=US_Ham_Radio_Receivers&hash=item35d1b73eb6
[14:08] <Darkside> its frigging awesome
[14:09] <Darkside> ouch
[14:09] <Darkside> i paid $200 for mine
[14:09] <Darkside> they're definitely getting rarer
[14:09] <mattbrejza> they go for £150 here i seem to rememnber
[14:09] <Darkside> there are definirtely cheaper ways to do it
[14:09] <mattbrejza> http://www.ebay.co.uk/itm/ICOM-R-10-radio-scanner-/191054045073?pt=UK_ConsumerElectronics_SpecialistRadioEquipment_SM&hash=item2c7bb55f91
[14:10] <Darkside> i just prefer not having the xtra load on my PC of a SDR
[14:10] <brainles71> i can get that to work with fldigi?
[14:10] <Darkside> sure
[14:10] <Darkside> fldigi just takes demodulated audio
[14:10] <Darkside> how you demodulate it is up to you
[14:10] <brainles71> hmm
[14:10] <Darkside> either with a hardware sideband receiver (i.e. R10, FT-817, whatever), or a SDR
[14:13] <brainles71> hmm
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[14:16] <brainles71> is demodulation a software or hardware thing?
[14:16] <fsphil> depends
[14:16] <brainles71> haha
[14:19] <fsphil> the rtty demodulation is always done in software
[14:20] <fsphil> the SSB demodulation can be either hardware (yaesu or icom rigs for example) or in software with one of the rtl-sdr dongles or a funcube dongle
[14:20] <brainles71> agh i have seen fun cube donglle
[14:21] <fsphil> they're very neat
[14:21] <fsphil> SDR can be a little more complex, and it puts more work on the PC
[14:21] <fsphil> if I was chasing I'd use a proper radio like my FT817
[14:22] <craag> Yeah sdr is a bit of a pain when chasing, can be done but a real radio is a lot less stressful.
[14:22] <fsphil> I've also been having issues with pulseaudio interfering with the signal
[14:23] <fsphil> gqrx now has an option to output the demodulated audio via a tcp connection
[14:23] <fsphil> need to wire that into fldigi
[14:26] <brainles71> hmm food for thought
[14:26] <brainles71> need radio
[14:26] <brainles71> must buy radio
[14:26] <Lunar_LanderU> Drosophila alarm
[14:27] <Lunar_LanderU> (=there is a fruit fly in my office)
[14:27] <brainles71> haha
[14:27] <brainles71> you will never figure out where they are coming from
[14:27] <Lunar_LanderU> x
[14:27] <DL1SGP1> time to evacuate the building, Kevin.
[14:27] <Lunar_LanderU> xD
[14:28] <brainles71> http://i.imgur.com/VXeOljY.gif
[14:29] <fsphil> it's the only way to be sure
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[14:30] <Lunar_LanderU> XD!
[14:30] <DL1SGP1> that is good incident response to insect infestation
[14:30] <DL1SGP1> that was a quick visit by Sven :D
[14:30] <brainles71> this is true fsphil& i live in Australia and I'm only on my 5th house
[14:31] <fsphil> people kept teasing me about all the insets there before I visited
[14:31] <fsphil> insects*
[14:31] <DL1SGP1> until you brought some of them home with you and put them into their dressers?
[14:31] <fsphil> other than the odd flying insect, I didn't see any
[14:31] <DL1SGP1> ah hehe
[14:32] <brainles71> http://www.youtube.com/watch?v=wy_TB6onHVE
[14:32] <fsphil> they had a great display in sydney airport, welcoming visitors by annoucing how many venmous spiders lived there
[14:32] <brainles71> come to australia
[14:32] <fsphil> you might accidently get killed
[14:33] <fsphil> http://i.imgur.com/flyBF.jpg
[14:33] <brainles71> exactly
[14:33] <brainles71> EVERYBODY "you might accidentally get killed"
[14:33] <fsphil> they should have something similar in belfast airport
[14:33] <brainles71> hahahahaha
[14:33] <brainles71> nope
[14:33] <brainles71> back on the plane i go
[14:34] <DL1SGP1> reminds me of the "come a step closer" subway ad :)
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[14:38] <Lunar_LanderU> OK, be back later
[14:38] <fsphil> my drop bear hat worked a treat though --- not one single attack
[14:38] <x-f> KT5TK-5 updated
[14:40] <brainles71> did you also put vegemite behind your ears and wear your anti sea rhinoceros undergarments?
[14:40] <fsphil> oh no, I didn't! I could have died!
[14:41] <brainles71> God admit fsphil! Think next time man!
[14:41] <brainles71> and now you have all got me trawling ebay looking at radio receivers
[14:42] <brainles71> i had a film addiction people! so much film and now I'm back on the ebay *sob*
[14:46] <DL1SGP1> you can buy films through ebay, but it is better to look for radio stuff for HAB-hobby :)
[14:46] <brainles71> no no like 35mm camera film
[14:47] <brainles71> i have a fridge full of it
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[14:49] <brainles71> if you ever want some film for an old camera DL1SGP1 let me know
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[14:52] <brainles71> agh well& one little receiver can't hurt
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[14:55] <Sytex> Anyone from USA?
[14:56] <brainles71> there are a few who check in from the US Sytex
[14:57] <brainles71> I'm from australia but i know for a fact theres at least one texan on here
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[14:58] <Sytex> I'm just trying to get information about the BIG power outage (what caused it), but there is not much on internet
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[14:58] <fsphil> not that big then? :)
[14:59] <Sytex> It's in Philadelphia, half million customer without electricity
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[14:59] <brainles71> nothing on reddit
[15:00] <Geoff-G8DHE> http://www.cbsnews.com/news/after-latest-storm-power-outages-hit-pennsylvania-hard/
[15:00] <fsphil> I'm following someone on twitter with the same name as me, who also happens to work for a newspaper in the pennsylvania - they've been getting a really bad storms, causing a lot of power outages
[15:00] <fsphil> -the
[15:01] <fsphil> huge amount of trees downed
[15:01] <Sytex> weather related...okay.. ty
[15:01] <brainles71> good luck Sytex! stay safe
[15:02] <Sytex> I'm very far, I'm just waiting an online service to come up, the admins told the cause is the power outage
[15:04] <DL1SGP2> Sytex: you might have some luck with the sites of local power suppliers, they often have quite neat outage maps available to readers
[15:07] <adwiens_KC0WYS_> Sytex: I'm in the US
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[15:10] <DL1SGP2> Sytex: Links to the Outage-Sites are available here: http://www.puc.state.pa.us/consumer_info/electricity/electric_companies_suppliers.aspx
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[15:24] <Sytex> DL1SGP2: thanks
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[15:36] <KT5TK> KT5TK-5 still alive over Georgia. Last telemetry package updated a few minutes ago from an igate in South Carolina. Stable at 22000ft (6800m).
[15:36] <SIbot> In real units: 22000 ft = 7 km
[15:37] <adwiens_KC0WYS_> georgia
[15:37] <adwiens_KC0WYS_> that's... where I am
[15:37] <adwiens_KC0WYS_> is it on 144.390?
[15:38] <KT5TK> Yes, very North Georgia or maybe SC already
[15:38] <adwiens_KC0WYS_> ok found you on aprs.fi
[15:40] <adwiens_KC0WYS_> is KT5TK-5 a pecan pico?
[15:41] <KT5TK> Yes, sure. http://tkrahn.net
[15:42] <adwiens_KC0WYS_> so the 4W TX power it lists is wrong?
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[15:42] <KT5TK> No, it's like 100mW. Just got a new position update.
[15:42] <KT5TK> North Carolina now.
[15:43] <adwiens_KC0WYS_> ya saw that
[15:43] <adwiens_KC0WYS_> so did you launch from houston?
[15:43] <KT5TK> Yes, exactly.
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[15:46] <Geoff-G8DHE> KT5TK, How long are the batteries good for ?
[15:50] <KT5TK> We have an extended 5 minute transmit cycle. At a 2 minute cycle the battery lasts about 2 days at room temperature. It should be several days. No visible loss of voltage yet.
[15:51] <fsphil> nice
[15:51] <adwiens_KC0WYS_> Did you insulate or just launch the pcb?
[15:52] <KT5TK> just the PCB
[15:58] <adwiens_KC0WYS_> wow 100 mph
[15:58] <adwiens_KC0WYS_> its really booking it
[15:59] Nick change: Sytex -> Sytex_AWAY
[16:01] <adwiens_KC0WYS_> huh no igates reported from alabama or louisiana
[16:04] <fsphil> do they allow technology there?
[16:04] <fsphil> I'm not sure igates are in the bible
[16:04] <adwiens_KC0WYS_> hahaha
[16:05] <KT5TK> Yes, they refer to it as "the gate to heaven"
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[16:38] <UpuWork> importing to spacenear.us KT5TK
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[16:39] <Lunar_LanderU> KT5TK: the Propane in the H2 cylinder story is really a strange thing
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[16:43] <Lunar_LanderU> talk to you later!
[16:45] <KT5TK> Thanks, Upu.
[16:46] <UpuWork> nps
[16:46] <UpuWork> whats battery life like ?
[16:46] <KT5TK> I hope we make it through several days.
[16:46] <KT5TK> We have an extended 5 minute transmit cycle. At a 2 minute cycle the battery lasts about 2 days at room temperature. It should be several days. No visible loss of voltage yet.
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[16:52] <KT5TK> Lunar_LanderU: The H2 story continues. Yesterday I tried to pick up H2 from another supplier. After a long registration procedure (involving the department of homeland security) they finally had H2 in stock. However they didn't hand it out to me because they said that my Prius is not save enough to transport hydrogen. So we need to come back with a truck to pick it up. Let's see if we get the H2 soon enough for our Hwoyee 1600 launch
[16:53] <Laurenceb> wow
[16:53] <Laurenceb> and i thought we had excessive health and safety in this country
[16:53] <LeoBodnar> KT5TK: did you do something to the TX power or antenna? There are no hits further than 100km
[16:54] <craag> lol. I asked the BOC guy about hydrogen, and he said if I could fit in my corsa, that was perfectly fine :P
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[16:54] <Laurenceb> technically you should stick a warning on the car
[16:54] <craag> Laurenceb: He also told me that that is only required in the UK over a certain volume.
[16:55] <Laurenceb> ah, interesting
[16:55] <craag> Recommended, but not required below that.
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[16:56] <KT5TK> LeoBodnar: I hope that the antenna is OK. I noticed that not all modems can demodulate my APRS signal though and I don't know what I may have done wrong.
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[16:59] <LeoBodnar> but the ones that do only seem to receive from shorter distance - I don't know if this is related
[16:59] <LeoBodnar> Have you looked at the demodulated audio on a scope/
[16:59] <LeoBodnar> ?
[16:59] <LeoBodnar> 100mW should have a massive range
[17:01] <KT5TK> I have no scope, but the FFT on my audio card looked ok
[17:02] <KT5TK> It's more likely that the code for encoding AX25 has a bug
[17:02] <LeoBodnar> hmm why certain stations are receiving it then?
[17:04] <KT5TK> I'd be happy if I knew that. But I know that it decodes great wit my TH-D72, but I don' get good decodes with my Argentdata trackers.
[17:05] <KT5TK> I had the same problem already with the original Trackuino code
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[17:10] <KT5TK> Possibly timing issues?
[17:12] <KT5TK> The prediction we've made yesterday is almost 100% exact: http://predict.habhub.org/#!/uuid=15fd6b82f6d4e3401781ac4c61d4db3f9af53640
[17:13] <LeoBodnar> ok
[17:14] <LeoBodnar> I am not sure what to suggest, I have written my APRS from scratch
[17:14] <LeoBodnar> maybe Upu knows? He uses similar code
[17:18] <x-f> reaching Europe around tomorrow midnight, according to that prediction
[17:24] <LeoBodnar> do you use European APRS freq for Azores?
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[17:27] <KT5TK> Yes, PecanPico4 is frequency agile and has primitive geofencing
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[17:30] <Upu> KT5TK someone else was reporting issues with the Trackuino APRS code
[17:30] <Upu> mine was scratch written by fsphil
[17:30] <Upu> and has worked fine every time I've flown it
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[17:33] <Laurenceb> ooh this looks exciting
[17:34] <Upu> I have a contact for Bruno on the Azores
[17:34] <Upu> they'll retune unless your code is clever KT5TK
[17:35] <Laurenceb> where is the aprs?
[17:35] <KT5TK> No need to retune.
[17:35] <Upu> switches to 144.800
[17:35] <Upu> ?
[17:35] <KT5TK> It'll change to 144.800
[17:36] <Upu> super
[17:38] <DL1SGP1> :P
[17:38] Nick change: DL1SGP1 -> DL1SGP
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[17:39] <Laurenceb> how long will it last?
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[17:44] <DL1SGP> Laurenceb: (5:46:56 PM) KT5TK: We have an extended 5 minute transmit cycle. At a 2 minute cycle the battery lasts about 2 days at room temperature. It should be several days. No visible loss of voltage yet.
[17:45] <Laurenceb> ah
[17:46] Nick change: uwe__ -> uwe_
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[18:16] <keydash> hello
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[18:19] <KT5TK> New position in Virginia. Came down quite a bit. Hmmm
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[18:41] <adwiens_KC0WYS_> are/were you trying to reach europe?
[18:42] <KT5TK> I always try that, but I never succeeded so far.
[18:44] <KT5TK> At least this seems to be my personal distance record.
[18:45] <Upu> well you have the speed
[18:45] <adwiens_KC0WYS_> ya its gone quite far!
[18:45] <Upu> whats the weight ?
[18:45] <adwiens_KC0WYS_> if I remember from his blog it was about 16g
[18:45] <Upu> AA ?
[18:46] <adwiens_KC0WYS_> aaa
[18:46] <KT5TK> 15 gramms payload (including battery & antenna)
[18:46] <KT5TK> AAA
[18:46] <Upu> ok well I get 26 hours from an AAA on mine doing continous TX
[18:46] <Upu> your transmitting less than me
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[18:46] <Upu> and your using the same bits :)
[18:47] <KT5TK> Slightly higher tx power though
[18:47] <Upu> but lower duty cycle
[18:47] <adwiens_KC0WYS_> upu do you insulate the payload?
[18:47] <Upu> it was minimal
[18:48] <Upu> http://imgur.com/a/j4wE6
[18:48] <Upu> scroll down
[18:48] <Upu> was thin foam, kit kat rapper foil and kapton tape
[18:50] <fsphil> ah, kapton tape. knew I forgot something
[18:51] <arko> it has the added benefit of making your stuff look like a spacecraft
[18:52] <Upu> SPACE!
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[18:56] <fsphil> yea, SPACE 1999
[19:04] <DL7AD> evening :)
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[19:07] <adwiens_KC0WYS_> afternoon
[19:09] <adwiens_KC0WYS_> so does the pecan pico 4 wait for the channel to be quiet before transmitting or does it just blast
[19:09] <adwiens_KC0WYS_> because if it just blasts then maybe stations that are farther away that would otherwise hear it are drowned out by transmissions from closer stations
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[19:10] <adwiens_KC0WYS_> it seems like most aprs trackers just blast like trackduino
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[19:10] <adwiens_KC0WYS_> etc
[19:11] <keydash> re-hi
[19:11] <KT5TK> Pecan Pico 4 doesn't have the RX activated. So blind tx
[19:11] <adwiens_KC0WYS_> ok
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[19:13] <Lunar_Lander> hello
[19:13] <adwiens_KC0WYS_> hey
[19:14] <ibanezmatt13> abend
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[19:18] <jcoxon> KT5TK, nice flight!
[19:18] <Geoff-G8DHE> Hum just coming into Sussex I see !
[19:21] <keydash> Ublox NEO-6M GPS is good for HABing??
[19:22] <Geoff-G8DHE> http://360.g8dhe.net/HAB_Flights/2014_Flights/KT5TK_2014206/
[19:23] <adwiens_KC0WYS_> pretty
[19:24] <jcoxon> keydash, yes
[19:24] <Upu> keydash it works yes, there are loads of them on ebay end of life
[19:24] <jcoxon> though you have to set it into flight mode
[19:24] <Upu> they are heavier than the MAX modules and use more power but work fine
[19:24] <Upu> and like James says you still need to put them in flight mode
[19:25] <keydash> I think i'll buy yours
[19:25] <keydash> i'm reading bad revirews
[19:26] <Upu> the NEO-6M module itself is fine
[19:26] <Upu> they just put lots of crap round it
[19:26] <Upu> cheap crap
[19:26] <keydash> with that antenna seems pretty heavy
[19:26] <Upu> same as a Sarantel
[19:26] <keydash> really?
[19:26] <Upu> but Sarantel is a much better quality component
[19:27] <Upu> yeah the Sarantel is about 5-6g ?
[19:27] <adwiens_KC0WYS_> isn't sarantel out of business?
[19:27] <Upu> they are yes
[19:27] <Upu> however someone bought lots before they went bust
[19:27] Action: Upu <-
[19:27] <adwiens_KC0WYS_> pretty smart
[19:27] <adwiens_KC0WYS_> haha
[19:27] <Upu> they are good for what we do
[19:27] <Upu> as they work in any orientation
[19:28] <keydash> that ebay gps is really cheap
[19:29] <keydash> and that's weird
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[19:29] <Lunar_Lander> my capacitor tester breadboard test rig http://s.gullipics.com/image/e/1/n/5yvcys-k32op5-lidv/IMG0418.jpeg
[19:29] <adwiens_KC0WYS_> why is that weird
[19:30] <keydash> because the habbers habitual GPS
[19:30] <adwiens_KC0WYS_> lunar_lander: holy...
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[19:30] <keydash> are 3 times expensive
[19:31] <keydash> the habitual habbers GPD
[19:31] <keydash> *GPS
[19:31] <adwiens_KC0WYS_> so youre wondering why hab people use more expensive gpses?
[19:31] <adwiens_KC0WYS_> its simple, they are smaller and use less power
[19:31] <keydash> so
[19:32] <Upu> when the ublox 7 series came along
[19:32] <adwiens_KC0WYS_> so you can use a small battery and fly it with a party balloon
[19:32] <Upu> ebay exploded with the older generation 6M's
[19:32] <Upu> NEO-6M's
[19:32] <keydash> i'll use 6 AA battery
[19:32] <Upu> not see the better 6Q's or the MAX modules on there
[19:32] <Upu> 6 :)
[19:32] <adwiens_KC0WYS_> ya but then you need a bigger balloon, more gas, and then there goes the price difference :P
[19:32] <Upu> even the Habduino only uses 2 AA's
[19:33] <Upu> lighter is better :)
[19:33] <Upu> safer
[19:33] <Upu> goes higher
[19:33] <Upu> costs less*
[19:33] <adwiens_KC0WYS_> smaller pcbs are cheaper too
[19:33] <Upu> *for increasing values of less
[19:33] <adwiens_KC0WYS_> list goes on
[19:33] <keydash> but for the first flight
[19:33] <Upu> yeah
[19:33] <keydash> just to try
[19:33] <adwiens_KC0WYS_> thats a different question
[19:33] <keydash> then i can improve things
[19:33] <Upu> afk a few
[19:33] <adwiens_KC0WYS_> you were asking why hab people use more expensive gpses
[19:33] <keydash> yeah
[19:34] <keydash> I want to minimize my errors
[19:34] <keydash> i have to send 6 AA and arduino and so more
[19:35] <keydash> so if the main difference is the power and weight
[19:35] <adwiens_KC0WYS_> why 6 AAs?
[19:35] <keydash> to power the arduino
[19:35] <keydash> and all the sensors
[19:36] <keydash> all i've read with the arduino uno uses 6 AA
[19:36] <adwiens_KC0WYS_> oh right, ya it takes 5v doesn't it
[19:37] <keydash> yeah
[19:37] <keydash> you guys are pro haha
[19:37] <keydash> if the 6 AA can power the radio and the gps
[19:38] <keydash> then ublox 6M is a good choice for me
[19:38] <keydash> i think
[19:40] <adwiens_KC0WYS_> one thing to watch out for is the NEO-6M takes a 3.3V supply and is not 5V tolerant on the input
[19:40] <adwiens_KC0WYS_> so if you hook up a 5V arduino you will need to level shift
[19:40] <keydash> i can use the 3.3v pin?
[19:40] <keydash> going to dinne, brb
[19:41] <keydash> (thanks for the answers)
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[19:42] <adwiens_KC0WYS_> sure
[19:43] <adwiens_KC0WYS_> you can power the neo-6m from the 3.3v pin but the serial input to the NEO-6m will need to be level shifted if the arduino is running at 5v.
[19:44] <jcoxon> ideally you should use a 3.3v arduino
[19:44] <jcoxon> it makes life so much easier
[19:46] <adwiens_KC0WYS_> ya then no need for shifting and you can use 4 AAs instead of 6
[19:47] <adwiens_KC0WYS_> but if he already has the arduino he can still make it work
[19:50] <henryplumb> mfa298: I'm using github again, why did I ever stop!!
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[19:57] <fsphil> https://pbs.twimg.com/media/Bf0IEJ3CEAAa1sH.jpg:large
[19:57] <fsphil> you are (probably) here
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[20:03] <keydash> oh sorry
[20:03] <keydash> i've lsot the chat
[20:03] <keydash> my pc hates me and shutdown
[20:03] <keydash> when i was afk
[20:03] <mfa298> keydash: the channel is logged, try searching for zeusbot in google
[20:04] <keydash> thanks
[20:05] <keydash> got it
[20:06] <keydash> according the specs
[20:06] <keydash> i can powerr it with 5v
[20:08] <mfa298> I thought all the ublox modules needed to be powered by 3.3v (or less in some cases)
[20:08] <mfa298> and similarly the logic levels should be 3.3v (or less in some cases)
[20:11] <adwiens_KC0WYS_> keydash may be talking about a board with a ublox on it
[20:11] <adwiens_KC0WYS_> but i think you are right, they are 3.3v and not 5v tolerant
[20:12] <Upu> yeah don't put 5V into them
[20:12] <Upu> I know two people who have done it
[20:12] <Upu> one was lucky the other just gets garbage out via NMEA
[20:12] <adwiens_KC0WYS_> ublox -> smokeblox
[20:13] <mfa298> also if the board has a 5v->3v3 reg it may not have logic level converters
[20:13] <Upu> I pulled apart the DX.com 6M board
[20:13] <Upu> and it said it was 5V compliant
[20:13] <Upu> but had nothing on the logic
[20:13] <Upu> also
[20:13] <Upu> http://dx.com/p/ublox-neo-6m-gps-module-w-eeprom-blue-green-251973
[20:14] <Upu> "with EEPROM"
[20:14] <Upu> oh that one does have EEPROM
[20:14] <Upu> interesting
[20:14] <Upu> doesn't say anything about logic levels though
[20:15] <keydash> blue green?
[20:16] <mfa298> says power 3-5v but agreed nothing about logic
[20:16] <adwiens_KC0WYS_> theres a little chip right by the tx and rx pins, is that a level shifter?
[20:16] <Upu> eeprom
[20:16] <adwiens_KC0WYS_> its literally right next to the tx/rx pins
[20:16] <adwiens_KC0WYS_> oh
[20:16] <adwiens_KC0WYS_> whats the bigger chip on the right then?
[20:16] <Upu> no thats eeprom
[20:16] <Upu> the one near the RX TX is a regultor I suspect
[20:16] <adwiens_KC0WYS_> ok
[20:17] <keydash> what means blue+green?
[20:17] <Upu> in what context ?
[20:17] <keydash> in teh gps
[20:18] <Upu> oh no idea
[20:18] <Upu> PCB colour ?
[20:18] <keydash> maybe
[20:18] <adwiens_KC0WYS_> ya theres no level shifting, just checked the schematic
[20:19] <keydash> then
[20:19] <adwiens_KC0WYS_> you wont be able to hook it straight to a 5v arduino
[20:19] <keydash> useless with 5v
[20:20] <adwiens_KC0WYS_> http://imgur.com/zNj40aP
[20:20] <adwiens_KC0WYS_> rx and tx are straight to the ublox
[20:20] <Upu> yep
[20:21] <mfa298> the only gps breakout board I'd trust to work with 5V logic is the one of Hab supplies.
[20:21] <Upu> yeah I'd agree :)
[20:21] <Upu> mine does have a level convertor on it
[20:21] <Upu> and a regulator
[20:21] <keydash> that is my main plan
[20:21] <keydash> but i gotta save money
[20:22] <keydash> another advantatge
[20:22] <keydash> the code is well explained
[20:22] <Upu> https://dl.dropboxusercontent.com/u/63720513/Images/hab%20supplies%20images/MAX7C-5-P-Top.jpg
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[20:23] <Upu> note level convertor bottom left
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[20:23] <Upu> you can level convertor SCL and SDA as well as an option
[20:23] <keydash> nff?
[20:23] <Upu> NFE
[20:24] <keydash> yeah it's an e
[20:24] <keydash> that module it's connected straight to arduino right?
[20:24] <Upu> yes
[20:25] <keydash> 62 euros put in home
[20:25] <adwiens_KC0WYS_> ... wouldnt it be better to just get a 3.3v arduino
[20:25] <Upu> yes that
[20:25] <adwiens_KC0WYS_> then you can use fewer batteries too
[20:25] <adwiens_KC0WYS_> less weight
[20:25] <adwiens_KC0WYS_> less gas
[20:25] <adwiens_KC0WYS_> etc
[20:25] <Upu> so
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[20:25] <Upu> the regulator on the Arduino sucks
[20:25] <Upu> as a suggestion use a step up externally and inject 5V into the board
[20:25] <arko> s/regulator on the//
[20:26] <Upu> this is how I do it on the Habduino
[20:26] <Upu> lol arko
[20:26] <arko> :P
[20:26] <Upu> so you're effectively bypassing the Arduinos regulators
[20:26] <Upu> and this way you can run from 5V
[20:26] <Upu> stick 5V in the Vin
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[20:27] <Upu> https://www.sparkfun.com/products/10255
[20:27] <keydash> right now i'm using the round connector
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[20:28] <keydash> and the gnd?
[20:28] <Upu> gnd to gnd
[20:29] <Upu> in theory that could run the 5V Arduino from 1 cell
[20:29] <Upu> but I suspect it wouldn't last long
[20:29] <adwiens_KC0WYS_> but what kind of radio does he have
[20:32] <keydash> i'm seeing
[20:32] <keydash> arduino pro mini 3.3v
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[20:44] <Lunar_Lander> http://www.arianespace.tv/ launch on hold due to weather
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[20:48] <keydash> I see another projects
[20:48] <keydash> with arduino uno
[20:48] <keydash> 6 AA
[20:48] <keydash> your GPS
[20:48] <keydash> and a camera
[20:50] <keydash> how amount of gas can i save moving onto lighter arduino with low power supply?
[20:51] <adwiens_KC0WYS_> try this: http://habhub.org/calc/
[20:51] <keydash> i've seen this before :D
[20:51] <keydash> i calc about 1500g payload
[20:51] <keydash> or less
[20:52] <adwiens_KC0WYS_> well it tells you how much gas you need
[20:52] <Upu> 1.5kg :/
[20:52] <kd2eat> Wow! Heavy!
[20:53] <Upu> When an American tells you your payload is heavy you need to sit up and listen :)
[20:53] <Upu> j/k kd2eat :)
[20:53] <Lunar_Lander> XD
[20:54] <keydash> haha
[20:54] <kd2eat> lol
[20:54] <keydash> arduino + pcb + ntx2 + 2 temp sensors + camera + 6aa + gps
[20:54] <Upu> nevar forget https://dl.dropboxusercontent.com/u/63720513/Images/Funny/pico.jpg
[20:54] <kd2eat> Just how much DOES a kitchen sink weigh?
[20:55] <Upu> serious face. Try aim for about 1kg max
[20:55] <Upu> which should be easy with an Arduino based tracker and a camera
[20:55] <kd2eat> Baaaahahaha. Love it.
[20:55] <Lunar_Lander> XD
[20:56] <keydash> i think
[20:56] <keydash> at the end it would be less than 1kg
[20:56] <Upu> you don't need hand warmers
[20:56] <keydash> well maybe, a gsm gps tracker backup more
[20:56] <kd2eat> Ya, we're gunning for a HAB launch here next month at about 400g with a Raspberry Pi, SSTV, tracker and nichrome cutdown.
[20:56] Action: arko salutes Upu's picture
[20:57] <adwiens_KC0WYS_> oh hey kt5tk-5 is in the atlantic
[20:57] <adwiens_KC0WYS_> *over
[20:57] <adwiens_KC0WYS_> over the atlantic
[20:57] <Upu> yup
[20:57] <Upu> go KT5TK :)
[20:57] <adwiens_KC0WYS_> oh and it gained altitude, cool!
[20:57] <kd2eat> yea! Crossed over Deleware within about 10 miles of the prediction. Awesome!
[20:57] <keydash> the most weighted thing is the camera, ins't it?
[20:57] <Upu> don't think its going to get close enough to Nova Scotia
[20:58] <Upu> well depends
[20:58] <Upu> six batteries don't help
[20:58] <adwiens_KC0WYS_> yea see thats part of the reason your uk balloons are so tiny
[20:58] <adwiens_KC0WYS_> no camera
[20:58] <arko> woah nice, go KT5TK!
[20:58] <Upu> hey Daveke launched a Canon camera payload with tracker in 150g
[20:58] <keydash> so
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[20:58] <adwiens_KC0WYS_> 150g >> 15g
[20:58] <keydash> my goal is to decrement the battery use?
[20:58] <Upu> tracker was powered from the camera batteries
[20:58] <adwiens_KC0WYS_> just saying
[20:58] <Upu> yup
[20:58] <adwiens_KC0WYS_> camera added a whole order of magnitude to the mass
[20:59] <Upu> we do launch cameras
[20:59] <adwiens_KC0WYS_> i'd say thats significant
[20:59] <KT5TK> arko: http://tkrahn.net
[20:59] <Upu> and I think one we launched wa s4kg
[20:59] <Upu> three GoPro's on it
[20:59] <keydash> ntx2 and temp sensors work with... arduino mini pro?
[20:59] <arko> http://earth.nullschool.net/#current/wind/isobaric/70hPa/orthographic=-52.59,36.54,445
[20:59] <Upu> yes keydash
[20:59] <keydash> but it's 5v
[20:59] <keydash> the same of uno
[20:59] <Upu> NTX2 has its own built in regulator
[20:59] <Upu> so just use a resistor on the TXD input
[21:00] <Upu> as the max voltage is 3V there
[21:00] <arko> KT5TK: awesome!
[21:00] <arko> good luck man
[21:00] <keydash> I followwd your tuto
[21:00] <Upu> thats ace I really hope it reappears KT5TK
[21:00] <kd2eat> Thomas, did you mod the code for RTTY over Europe, or are you just going to keep sending APRS?
[21:00] <keydash> right now i'm transmitting from the fridge with 4 AA
[21:01] <Upu> I'll send you a solar board KT5TK
[21:01] <Upu> http://i.imgur.com/KjkxuW6.jpg
[21:01] <KT5TK> pressure was 43022Pa. So http://earth.nullschool.net/#current/wind/isobaric/500hPa/orthographic=-52.59,36.54,445 is more accurate.
[21:01] <Upu> with a LiPo
[21:01] <Upu> is that 1.8V logic KT5TK ?
[21:01] <KT5TK> no, 3.3V.
[21:01] <Upu> ah ok
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[21:02] <Upu> well suspect its going to go out of range soon
[21:03] <adwiens_KC0WYS_> isnt it already
[21:03] <Upu> ah yes sorry last update was 20:26 UTC
[21:03] <jcoxon> estimated transist time over the Atlantic?
[21:03] <kd2eat> I suspect it did. Last update about 40 minutes ago?
[21:03] <Upu> someone calculated it jcoxon its moving at some speed
[21:03] <KT5TK> Last telemetry 8 minutes ago
[21:04] <adwiens_KC0WYS_> yea its comfusing me because the telemetry timestamp is different than the one at the top
[21:04] <KT5TK> 2014-02-06 14:54:51 CST: KT5TK-5>APECAN,KB1EJH-15,WIDE2*,qAO,W2CMC:T#186,025,035,021,000,040,00000000
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[21:04] <Upu> 37ms ago according to aprs.fi ?
[21:04] <adwiens_KC0WYS_> look at the telemetry line
[21:04] <adwiens_KC0WYS_> on aprs.fi
[21:04] <KT5TK> Position is 31 mins,
[21:04] <Upu> ah ok
[21:04] <adwiens_KC0WYS_> 15:54
[21:04] <adwiens_KC0WYS_> yea that confused me too
[21:04] <KT5TK> but there was another telemetry package later
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[21:05] <jededu> I have to say a huge thanks to ibanezmatt13 for amazing patience and skill code works now :)
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[21:05] <Upu> so 53.4m/s ground speed
[21:05] <Upu> 120mph
[21:06] <adwiens_KC0WYS_> now we just need to transmit on HF so we can track it while its over the atlantic
[21:07] <adwiens_KC0WYS_> :P
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[21:07] <Upu> 3938km to the Azores (2466 miles)
[21:07] <Upu> 2446
[21:08] <Upu> so 20 hours until it hits the Azores at current speed
[21:08] <Upu> 1700 UTC tommorrow
[21:08] <keydash> because
[21:08] <keydash> as i can see
[21:08] <keydash> 4 AA won't last the entire flight?
[21:09] <Lunar_Lander> cool Upu
[21:13] <Upu> with a stepup it should
[21:14] <Reb-SM3ULC> another flight, yay! :)
[21:14] <Lunar_Lander> :)
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[21:16] <SP9UOB-Tom> evening all
[21:16] <Upu> evening Tom
[21:16] <Reb-SM3ULC> tracker on 430 mhz?
[21:16] <Upu> APRS
[21:17] <Reb-SM3ULC> aah
[21:17] <KT5TK> Info at http://tkrahn.net
[21:18] <Upu> think the batteries will last 20 hours ?
[21:18] <KT5TK> There is only one, but I believe so.
[21:18] <Upu> I do hope so
[21:18] <Upu> SP9UOB-Tom your foil distance record may be in trouble :)
[21:19] <KT5TK> everything is sleeping for 5 minutes each cycle. The current was below what I could measure with my multimeter
[21:20] <Upu> well just for perspective PAVA did 2900km on a single AA
[21:20] <Upu> single AAA
[21:20] <Upu> you have 3900km to go
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[21:20] <Upu> Turning GPS off ?
[21:21] <SP9UOB-Tom> KT5TK: hi Thomas :-)
[21:21] <KT5TK> GPS, VCXO and Si4464 are totally switched off. CPU is in sleep mode
[21:21] <KT5TK> Hi Tom
[21:21] <Upu> I think you'll make it
[21:21] <Upu> awesome
[21:21] <SP9UOB-Tom> Upu: why :) ?
[21:21] <Upu> because if Thomas gets to the Azores he's within 500km of your record
[21:22] Action: SP9UOB-Tom is keeping fingers crossed :-)
[21:22] <Upu> no problems with turning the GPS off and turning it back on again ?
[21:22] <KT5TK> Seems no problem so far. Maybe a few bogus positions...
[21:23] <Upu> yeah that :)
[21:23] <Lunar_Lander> ariane seems to fly in 7 min
[21:23] <Lunar_Lander> yes countdown resumed
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[21:31] <Reb-SM3ULC> darn clouds
[21:31] <Reb-SM3ULC> and encrypted language
[21:32] <Lunar_Lander> yea
[21:37] <jededu> can i just check is ntx2 vcc 5v
[21:38] <Upu> you can put anything above 3V into the VCC
[21:38] <Upu> (internally its 2.7V)
[21:38] <Upu> however the TXD is 0-3V
[21:39] <jededu> mmm cant get an output
[21:39] <Reb-SM3ULC> the airiane seem to outrun our foily little friend over the atlantic..
[21:39] <Upu> ok jededu just attach VCC to 5V, EN to 5V and GND to GND
[21:39] <Upu> and you should get a carrier out
[21:40] <Upu> a single tone
[21:40] <KT5TK> Ha :) It'll caus some turbulences...
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[21:41] <Upu> Azores ~ 1700 UTC tommorrow jcoxon
[21:42] <jcoxon> excellent
[21:42] <jcoxon> look forward to it
[21:43] <jededu> I have an oscillating input 1.2v 1.9v 0n the scope measured at tx and 3.3 vcc
[21:45] <jededu> and a 165mm antenna
[21:45] <Upu> should be able to hear something
[21:46] <jededu> I am using SDR sharp wfm
[21:47] <Upu> usb]
[21:47] <jededu> yes
[21:47] <Upu> no set it to USB
[21:48] <jededu> yes set on usb
[21:48] <Upu> EN pulled high ?
[21:48] <jededu> tried wfm also
[21:48] <jededu> explain that one
[21:48] <mfa298> WFM/FM wont work as there's only a carrier no modulation
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[21:49] <Upu> explain EN pulled high ? there is an EN pin on the NTX2B
[21:49] <Upu> you need to attach it to 5V
[21:49] <Upu> to turn the module on
[21:49] <jededu> oh yes to enable done
[21:49] <Upu> so with USB set
[21:50] <Upu> removed everything apart from VCC, EN (tie to VCC) and GND
[21:50] <jededu> i see 3.3 at vcc and en
[21:50] <jededu> yes
[21:55] <Upu> you should just hear a tone
[21:55] <jededu> I know lol
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[21:57] <aadamson> with sdrsharp, obviously if you see a peak and your frequency isn't on the peak, you need to make that happen or you may not hear anything
[21:57] <Burninate> saw this and thought you might be interested -
[21:57] <Burninate> http://arxiv.org/ftp/arxiv/papers/1307/1307.0375.pdf
[21:57] <jededu> no peak flat
[21:58] <mfa298> jededu: can you take a screenshot of sdr# with the ntx2 when it's on.
[21:58] <SP9UOB-Tom> KT5TK: Thomas, what is Your output power and estimated battery life ?
[21:58] <mfa298> also tell us what freq the ntx2 is
[21:59] <jededu> 434.475
[21:59] <jededu> where do i post screenshot
[22:00] <KT5TK> SP9UOB: 100 mW, but only for one second in a 5 minute cycle
[22:00] <mfa298> imgur.com or dropbox work well for screenshots
[22:00] <SP9UOB-Tom> KT5TK: 15 mW also does the job :-)
[22:00] <KT5TK> GPS, VCXO and Si4464 are totally switched off. CPU is in sleep mode
[22:01] <KT5TK> 15 mW for APRS? It might, but it's on the limit
[22:02] <fsphil> https://twitter.com/AstroRM/status/431544943937474560/photo/1/large
[22:02] <Upu> Azores are going to have to be on 144.390 really
[22:03] <KT5TK> Yeah, I noticed this after you've asked.
[22:03] <SP9UOB-Tom> KT5TK: i did that http://aprs.fi/#!mt=roadmap&z=7&ts=1386720000&te=1386806400&call=a%2FSP9UOB-11
[22:03] <SP9UOB-Tom> KT5TK: how long GPS wakes up ?
[22:04] <Lunar_Lander> ariane made it once more
[22:04] <KT5TK> 5 minutes
[22:04] <SP9UOB-Tom> KT5TK: so You are turning the GPS on 5 minutes before TX'ing?
[22:04] <fsphil> Lunar_Lander: you see the picture above?
[22:04] <Lunar_Lander> which one?
[22:05] <fsphil> https://twitter.com/AstroRM/status/431544943937474560/photo/1/large
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[22:05] <SP9UOB-Tom> KT5TK: SP9UOB-11 was 15 miliowatts
[22:05] <SP9UOB-Tom> miliwatts
[22:05] <KT5TK> No, I start with GPS each cycle and it's on for a few seconds until it gets the position. As soon as I've the position it'll be switched off.
[22:06] <Lunar_Lander> fsphil, awesome!
[22:07] <SP9UOB-Tom> KT5TK: and You are using nmea or UBX protocol? Im asking, because i have loads of glitches when GPS was turned on/off
[22:07] <KT5TK> NMEA via serial port
[22:08] <Upu> can't do something interesting like this and not expect lots of questions KT5TK :)
[22:08] <jededu> SDR image www.primarypi.co.uk/images/sdr.png
[22:09] <Upu> not working jededu
[22:09] <Upu> :)
[22:09] <jededu> no
[22:09] <Upu> click you car remote control next to the radio
[22:09] <SP9UOB-Tom> i have to try with nmea. UBX over i2c causes glitches
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[22:09] <Upu> see if anything happens on the water fall
[22:09] <Upu> afk
[22:09] <mfa298> jededu: that would suggest either the sdr isn't picking it up or the ntx2 isn't working
[22:10] <mfa298> try upu's suggestion, that should show if the sdr is working
[22:10] <jededu> I can pick up radio on the sdr
[22:10] <keydash> check the gain
[22:10] <keydash> on options
[22:10] <keydash> if the ntx2 is close, the signal is high
[22:11] <Maxell> I think this is dutchmillbt/PD4KDZ 's place https://twitter.com/regio15/status/431543134393081856/photo/1
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[22:11] <Maxell> Does not look good :(
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[22:12] <jededu> no gain makes no difference no car remote sorry
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[22:14] <aadamson> you may need to turn the gains off on the sdr.
[22:14] <mfa298> are you able to take some photos of how the ntx2 is setup.
[22:14] <aadamson> click the configure button and then turn off both of the other gains, checkmarks at the bottom of the confugure window
[22:14] <jededu> hang on
[22:15] <aadamson> it may be that the module is only putting out small power and the noise floor is covering it up
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[22:16] <aadamson> hmm and I go back and for on this, but isn't the i&q suppose to be swapped? I use a funcube and it is on that so maybe not on the rtl... someone else will have to comment, but that will screw up the frequency display to frequency
[22:16] <mfa298> rtl-sdr shouldn't need swap I&Q,
[22:20] <jededu> it was the ***** breadboard connection i now have an output thanks guys
[22:21] <mfa298> so many issues are caused by breadboard
[22:21] <keydash> yeeah
[22:24] <Upu> lol breadboard
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[22:25] <jededu> http://www.primarypi.co.uk/images/success.png
[22:25] <Upu> thats more like it
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[22:31] <jededu> so now im excited i have the warble of data time to decode it
[22:31] <mfa298> do we have a "Common Hardware Errors" page yet. If not 1) Breadboard, 2) Breadboard, 3) 5v for a 3v3 system
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[22:33] <jededu> best decoding software ?
[22:34] <mfa298> jededu: depends on what you're sending. but if it's standard ukhas style rtty or DominoEX get dl-fldigi
[22:34] <jededu> its formatted as ukhas
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[22:36] <mfa298> assuming it's RTTY then dl-fldigi is the software to use
[22:36] <Lunar_Lander> SP9UOB-Tom, cool flight btw
[22:37] <SP9UOB-Tom> Lunar_Lander: indeed -42 celsius ;-)
[22:37] <SP9UOB-Tom> Lunar_Lander: thanks :-)
[22:37] <Lunar_Lander> you're welcome
[22:37] <Lunar_Lander> yea xD
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[22:41] <SP9UOB-Tom> Lol: http://www.youtube.com/watch?v=_p8luzlyOVU this guy is "painting" with compressed air :-)
[22:42] <DL1SGP2> oh neat KT5TK-5 gained altitude again
[22:43] <jededu> guide to setup dl-fldigi
[22:44] <mfa298> jededu: try that ^^^^
[22:44] <SP9UOB-Tom> DL1SGP2: it was last heard 2 hours ago
[22:45] <DL1SGP2> Yeah Tom :) not too many APRS stations across the atlantic
[22:46] <SP9UOB-Tom> DL1SGP2: only HF :-)
[22:46] <DL1SGP2> but it was down to 15000ft before reaching coast, now last report is stating 22022ft so... that is quite nice
[22:46] <SIbot> In real units: 15000 ft = 4572 m
[22:46] <qyx_> lol
[22:47] <DL1SGP2> SP9UOB-Tom: real radio bounces off the sky :)
[22:47] <qyx_> hm, it converts only the first value :(
[22:47] <DL1SGP2> 22022ft
[22:47] <SIbot> In real units: 22022 ft = 7 km
[22:48] <DL1SGP2> there
[22:48] <qyx_> \o/
[22:48] <SP9UOB-Tom> DL1SGP2: i have 2 first places on arhab.org :-) (HF telemetry range :-)
[22:49] <DL1SGP2> good to know SP9UOB-Tom I wish that nasty virus did not ground me in december when the mass flight happened :)
[22:49] <Reb-SM3ULC> SP9UOB-Tom: would be funky to test wspr...
[22:50] <SP9UOB-Tom> Reb-SM3ULC: i have working code - but it was disabled during last flight
[22:50] <SP9UOB-Tom> Reb-SM3ULC: because of power saving (4 minutes @500 mW draws too much current)
[22:52] <Reb-SM3ULC> ah
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[22:54] <SP9UOB-Tom> ok, its late, good night all
[22:54] <SP9UOB-Tom> KT5TK: im waiting for Your pico nhere in Poland :-)
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[22:57] <jededu> fl-digi stationary listener data ?
[23:02] <mfa298> you should put in your lat/long/altitude, if something is also set for callsign then you should appear on the spacenear.us map
[23:03] <mfa298> it also means dl-fldigi can work out how far you are from the payload (hopefully very close when testing)
[23:23] <LeoBodnar> Hey which one is that? [21:18] <Upu> SP9UOB-Tom your foil distance record may be in trouble :)
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[23:27] <LeoBodnar> Upu Tom's record distance was not a foil
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[00:00] --- Fri Feb 7 2014