[00:00] <G8APZ> my hook into radio was when the dentist that my mother worked for as a dental nurse gave me a set of parts and a coil for a cat's whisker crystal set!!
[00:01] <G8APZ> at age 11 I was able to reposition the tungsten wire on a crystal and get the local BBC MW Third Programme!
[00:01] <fsphil> I saw a computer in the local Planetarium receiving a satellite image from a weather satellite in real time. That got me interested in radio, and I guess I've re-created that with ssdv :)
[00:01] <G8APZ> fsphil once hooked, never lost!!
[00:02] <G8APZ> I started on 70cms in 1965
[00:02] <G8APZ> GREEN again
[00:03] <Lunar_Lander> nice
[00:03] <G8APZ> elevation 1.1
[00:03] <fsphil> 20.5 m/s
[00:03] <G8APZ> 555km
[00:03] <fsphil> I hope this slows down
[00:05] <G8APZ> fsphil after 70cm in 1965, I went down to 2m, but after that went up.... now have 6cm, 3cm, and 24GHz
[00:05] <G8APZ> fsphil 10w on 6cm and 3cm, 3w on 24GHz
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[00:06] <fsphil> Always mean to get some microwave stuff. seems overly complex
[00:06] <amell> I do recall wrapping varnished copper wire round an iron rod to make a radio in the 70s. Cant remember why though.
[00:07] <amell> Im embarrassed to admit to once making a mullard valve radio.
[00:07] <Geoff-G8DHE> HiPi distance travelled 517Kms http://360.g8dhe.net/HAB_Flights/2014_Flights/HiPi_20140322/index.php?ind=120
[00:08] <Geoff-G8DHE> right I'm off leave it all running see you in the morning ... well later :-)
[00:08] <fsphil> nite!
[00:08] <Lunar_Lander> good night
[00:08] <G8APZ> fsphil Microwave stuff is easy nowadays if you want to buy ready made and integrate
[00:09] <G8APZ> Geoff-G8DHE Goodnight
[00:09] <G8APZ> fsphil e.g. 3cm transverter 200mw out from 2m rig
[00:10] <G8APZ> add a PA 4w or 10w
[00:10] <G8APZ> use a SKY 90cm dish and a home made horn feed
[00:11] <G8APZ> control board to look after TX/RX sequence of relay (sma surplus)
[00:11] <G8APZ> Bob is then a close relative
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[00:12] <fsphil> hehe. I'll have to wait until I have somewhere to put a decent size dish
[00:13] <fsphil> even a 90cm would take up a fair bit
[00:15] <fsphil> though I guess most microwave stuff is done /P
[00:16] <G8APZ> fsphil on 3cm in NI there is a limited amount of ppl to contact... to be fair, but depends how keen you are... My first 3cm activity in 1990 with all home brew gear and a 50cm PW dish with 200mw yielded SM at 1012km....0
[00:17] <G8APZ> rare I must admit, but since then have worked OE too at 1200km
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[00:18] <G8APZ> and over 10 countries, and 30 locator squares
[00:18] <fsphil> there isn't very much on most >=VHF bands here :)
[00:18] <G8APZ> agreed!
[00:18] <fsphil> I've a lot of spectrum to myself :)
[00:18] <G8APZ> see this article > http://www.johng4bao.webspace.virginmedia.com/Files/CUWS2012.pdf
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[00:19] <G8APZ> look at www.beaconspot.eu (my baby!!) to see the coverage of microwave beacons
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[00:20] <Laurenceb> looks like B-41 missed the APRS from Armenia :(
[00:20] <Laurenceb> i was wondering if it would pass the end of the valley down from Yerevan
[00:22] <amell> lol. what is it with cambridge and radio, that article you posted, everyone is in cambridge area.
[00:22] <eroomde> a lot of hab used to be in cam
[00:26] <amell> just seen that some call signs have been sending B-41 messages over aprs
[00:28] <Darkside> haha
[00:28] <Darkside> yes
[00:28] <Darkside> 2014-03-22 11:04:11 UTC: YM9KK>M0XER-11: TRY 439.300 CTSS:103.5 Shift:-7.6
[00:28] <G8APZ> amell Cambridge is a Uni place.. and was the home of Pye
[00:28] <G8APZ> natural place for radio people!!
[00:29] <amell> darkside: see the guy sending 73 to it
[00:29] <G8APZ> CUWS is Cambridge Uni Wireless Society so yes, they will mainly be in erm... Cambridge!
[00:29] <Darkside> yup
[00:30] <eroomde> G8APZ: and indeed cusf which is a good chunk of why lots of us are here
[00:30] <G8APZ> 556km away and good trace at 10dB but no green decodes, only partials
[00:31] <amell> eroomde: does cusf still exist?
[00:31] <eroomde> yep!
[00:31] <eroomde> mostly rockets
[00:31] <eroomde> but still the people who do 90% of habhub are cusf
[00:31] <G8APZ> eroomde Ed, unis that have radio faculties do tend to make radio ppl!!
[00:31] <amell> they don't seem v active based on website
[00:31] <eroomde> and the predictor and so on
[00:32] <eroomde> amell: probably more a reflection on the website :)
[00:32] <amell> they posted about lynx board (live video stream from balloon) last july. nothing more.
[00:32] <G8APZ> getting p155ed off with 10dB sigs and no decodes!!
[00:33] <eroomde> amell: send em an email asking if they're still alive
[00:33] <G8APZ> plenty of partials but corrupt
[00:33] <eroomde> might prompt someone into action
[00:34] <eroomde> amell: i know they're doing stuff with hybrid rockets atm - i was at one of their tests last weekend
[00:35] <amell> candy rocket?
[00:35] <amell> or plastic?
[00:35] <eroomde> was a sugar grain
[00:35] <amell> candy then :)
[00:36] <G8APZ> sugar and weedkiller - goes well!
[00:37] <eroomde> sugar and fertiliser too :)
[00:38] <adamgreig> amell: we tested with hdpe the previous time, decided candy smelt better ;)
[00:38] <G8APZ> years ago a friend and I had an old tin of paint with a crust on the paint... we loaded it with "fertiliser" and icing sugar and a JETEX fuse
[00:38] <adamgreig> still plenty of cusf activity going on
[00:39] <adamgreig> not so much on lynx, that was someone's ambitious summer project and the end of summer arrived before it started working
[00:39] <G8APZ> the result was 30ft of leaves on a tree burned!
[00:39] <SIbot> In real units: 30 ft = 9.14 m
[00:39] <G8APZ> Sibot FO
[00:39] <Darkside> loooooooool
[00:39] <eroomde> sibot is here to keep us sane
[00:39] <Darkside> i do love SiBot
[00:39] <gonzo_> the put fire retardents in the stuff these days, ruined the holiday amusement of generations of boys
[00:39] <eroomde> for some value of 'us'
[00:40] <Darkside> eroomde: it may be nice to hav regexbot in here though
[00:40] <adamgreig> s/hav/have
[00:40] <Darkside> yes
[00:40] <Darkside> :P
[00:40] <G8APZ> some of the geriatrics!! Include me
[00:40] <eroomde> it's like the universal translater in star trek
[00:41] <G8APZ> regex is really clever... I use regex in PHP
[00:41] <eroomde> makes talking shop seamless despite the generation/ocean gaps :)
[00:41] <G8APZ> I would sponsor a flight to celebrate my 70th b'day
[00:45] <G8APZ> if(preg_match("/^([1-9a-z]{1,2}[0-9]{1,2}[a-z]{1,4})+$/i", ($beaconcall))){do_something}
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[00:47] <G8APZ> Amazing to see HiPi still txing almost 15 hrs after launch
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[00:50] Nick change: Geoff-G8DHE_ -> Geoff-G8DHE-M
[00:50] <G8APZ> 2E0KPI very approriate call
[00:50] <G8APZ> especially PI
[00:51] <G8APZ> Geoff-G8DHE-M you are not a chaser in the Irish Sea tonight .....surely not!
[00:52] <eroomde> that would be a fun thing
[00:52] <amell> (^(?=.*\d)(?=.*[a-z])(?=.*[A-Z]).*$)?(^(?=.*\d)(?=.*[a-z])(?=.*[@#$%^&+=]).*$)?(^(?=.*\d)(?=.*[A-Z])(?=.*[@#$%^&+=]).*$)?(^(?=.*[a-z])(?=.*[A-Z])(?=.*[@#$%^&+=]).*$)?
[00:52] <eroomde> chasing into the sea on a ship
[00:52] <G8APZ> eroomde Irish Sea not a nice place to be!!
[00:53] <amell> G8APZ: I can confirm that. Used 3 paper bags on Holyhead to Dun Laoghaire once.
[00:53] <G8APZ> Ferries from Fishguard, Holyhead, Birkenhead get a hard time with the weather
[00:55] <G8APZ> amell wife comes from Holyhead... brother worked on freight ship Brian Baru, and retired due to seasickness
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[01:02] <G8APZ> still seeing HiPi , but there is another launch from Ross on Wye tomorrow...
[01:02] <G8APZ> need to sleep but will track the flight tomorrow
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[01:34] <kd2eat> 1
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[01:40] <SpeedEvil> 2
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[01:50] <g0pai_ian> 3
[01:50] <g0pai_ian> Gnite
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[02:08] <kd2eat> So, is it tradition to pull an all-nighter doing final preps for your HAB flight?
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[02:18] <Maxell> kd2eat: could be :)
[02:22] <kd2eat> Well if not, I'm starting my own!
[02:23] <kd2eat> Screwed up and forgot to test the FET I'm using for cutdown with my microcontroller. My microcontrolelr doesn't have enough oomph to throw it. Moving on to Plan B. I've got a micro relay that has worked in the past.
[02:28] <arko> moonrise? http://ssdv.habhub.org/images/2014-03-23--02-22-52-HIPI-9F3.jpeg?u=17
[02:30] <arko> moon is on the horizon in the uk
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[02:41] <aadamson> kd2eat, the FET must not be a logic level one?
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[02:41] <aadamson> needs something more that 5v to turn it on?
[02:42] <kd2eat> It's a: http://www.adafruit.com/datasheets/irlb8721pbf.pdf
[02:43] <kd2eat> If I recall, Daveake recommended it. My Raspberry Pi will fire it, but my AVR chip will not.
[02:43] <kd2eat> The AVR should support 20ma on the pin, I believe. Apparently that's not doing the job.
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[02:45] <kd2eat> The balloon will actually have a dual cutdown mechanism. Both an AVR chip, and I'm doing one off the Raspberry Pi I'm using for SSTV as well. We lost one payload due to failed cutdown. We're a little paranoid now. hehe
[02:47] <aadamson> bizarre, that's a 1.8v gate voltage
[02:47] <aadamson> you sure you have the connected right?
[02:48] <kd2eat> It lights an LED attached to the FET, but it won't fire nichrome.
[02:48] <kd2eat> Same setup against a Pi works fine.
[02:49] <aadamson> ok... is it an n-fet?
[02:49] <aadamson> funny it doesn't say anywhere
[02:49] <kd2eat> I honestly don't know.
[02:49] <aadamson> no it's a P
[02:49] <aadamson> at least I think.. hang on, I get confused with Fet's.
[02:50] <aadamson> yeah, it's an N
[02:50] <kd2eat> lol. Dammit Jim, I'm a software engineer, not a hardware guy!
[02:50] <aadamson> ok, so how is it connected?
[02:50] <kd2eat> Gate to a pin on the AVR
[02:51] <kd2eat> (looking at data diagram.. hang on)
[02:51] <kd2eat> Drain to the ground on the Nichrome.
[02:51] <kd2eat> Source to the common ground to the battery.
[02:52] <kd2eat> Other lead on the nichrome goes to the positive lead on the battery.
[02:52] <kd2eat> I pull up the pin on the AVR. It reads 3.7 volts or so with nothing connected.
[02:52] <kd2eat> When I have nichrome on there, it reads like 2.3 volts.
[02:53] <kd2eat> But it won't light.
[02:53] <kd2eat> But if I take the same nichrome, on a fet wired this way, and touch the gate to the positive terminal on the battery (rather than through the AVR), it touches it right off.
[02:54] <aadamson> hmm... ok, gotta look at a couple of things... back in a few
[02:55] <kd2eat> kk
[02:55] <kd2eat> I'm doing tests here too
[03:04] <aadamson> so you have high voltage -> one side of the nichrome -> nichrome -> other end of nichrome -> drain on fet, gate on fet -> processor pin, source on fet - ground?
[03:04] <aadamson> if so, I don't think that's what you want
[03:05] <aadamson> what would work with an N fet, but not a P
[03:05] <kd2eat> IT doesn't work at all if I reverse source and drain, if that's your suspicion.
[03:05] <aadamson> opps... my bad that is what you want
[03:05] <aadamson> did I describe it correctly?
[03:05] <kd2eat> Yes
[03:06] <aadamson> wire between high voltage and drain, source to ground, gate to pin?
[03:06] <kd2eat> Wire to the drain goes to the "ground" side of the nichrome.
[03:07] <kd2eat> Source goes to high voltage ground.
[03:07] <aadamson> yeah
[03:07] <Maxell> time to work 2 meter bands, horizontally ;)
[03:07] <aadamson> the fet is the path to ground to light the nichrome?
[03:07] <kd2eat> Yes
[03:07] <kd2eat> Oddly. The voltage is dropping horribly across the fet.
[03:08] <kd2eat> 3.7v lipo is the power source. Across the drain and pin, I'm reading 2.3 volts.
[03:08] <aadamson> and you have to put a high on the pin to turn on the fet
[03:08] <kd2eat> drain and positive side of battery that is
[03:08] <kd2eat> On the gate, yes.
[03:08] <aadamson> when you do that, how high is the pin going?
[03:09] <kd2eat> It's reading 2.3 volts.. which is a little odd. It's being powered by a 3v battery, which is actually reading a bit higher than 3.
[03:09] <kd2eat> I'm just about to do a test against another pin to see what voltage it shows me.
[03:09] <kd2eat> (unconnected pin)
[03:09] <aadamson> yeah... let me check a couple of things are you using any pull ups or downs on the gate?
[03:09] <kd2eat> Nope. Just the AVR's own internal.
[03:10] <kd2eat> Setting it as an output port, and setting it to 0 at startup.
[03:10] <kd2eat> Pulling it up to 1 when I want to light it.
[03:10] <aadamson> yeah this is the sink vs source issues with processors
[03:10] <aadamson> they can usually sink more current than they can source
[03:13] <aadamson> and here's your other problem. 2.35v on the gate will give you and RDSon of 2.5ohm (D-S resistance)
[03:13] <kd2eat> Ya. The Pi is probably giving me a full 3.3 volts. Maybe that's the difference.
[03:14] <kd2eat> Oddly though, the fet DOES throw... but just not "much".
[03:14] <kd2eat> If I hook up an LED, it lights when the gate goes high... but nichrome won't fire.
[03:14] <kd2eat> perplexing.
[03:14] <aadamson> that resistance through the fet is probably more than the resistance through the nichrome...
[03:14] <aadamson> at that low turn on voltage
[03:15] <kd2eat> Well, an EE grad student friend just got home from gaming, and is coming to my office to help. He'll probably take one look and tell me what I screwed up. lol
[03:15] <kd2eat> .. and he's bringing beer!
[03:16] <aadamson> hehe... even better
[03:16] <kd2eat> I'm thinkin' lol
[03:16] <kd2eat> Well, I'm doing a test on the Pi right now. I followed Daveake's wiki for converting it to 3.3v. Working great.
[03:16] <kd2eat> I've got it attached to 3 AA Ultimate Lithiums. It's merrily collecting pictures and sending SSTV images.
[03:17] <aadamson> using the SSDV stuff, did you see the launch (still happening) from fsphil today doing that
[03:20] <kd2eat> Heard about it but was woefully busy hacking away at my own stuff. Ran into numerous problems in the last week. I was hoping to have all this stuff done and tested like Monday night. sigh.
[03:20] <kd2eat> I'm tempted by the SSDV, though it's pretty slow... but then again, I'm sending Martin1 images, so they're 2 minutes a throw, and likely to get garbled.
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[03:27] <arko> fsphil: its the moon!
[03:29] <aadamson> yeah, you must have something wrong somewhere... the AVR pins can source 25mA
[03:29] <aadamson> and you only need 25uA
[03:30] <aadamson> maybe your are pulling too much current from the pin when you don't need to be.
[03:30] <aadamson> put a series resistor on the pin to gate and see if that helps.
[03:31] <aadamson> you *may also* need a pull down on the gate, but I doubt that you'll need that its used when the pin is high impedance
[03:32] <aadamson> 100 ohm on that series resistor if you try it looks good
[03:33] <aadamson> ah just reading, 150ohms is the right value for that series resistor
[03:33] <aadamson> should have done the math
[03:33] <aadamson> 5v, 25ma
[03:35] <aadamson> ah, and yea, the pull down is probably good too, as the pin will float during reset.
[03:35] <aadamson> 10k on the pulldown
[03:58] <kd2eat> OK, here's the results of tests.
[03:59] <kd2eat> With a 3.0v battery running the AVR chip, the gate was apparently not getting enough voltage, so the FET didn't pass much current. I switched to 3.7v on the AVR, and the nichrome fires.
[04:23] <aadamson> yeah!
[04:23] <aadamson> yeah, kinda figured as much
[04:32] <kd2eat> OK. Ran out of igniters to test, but it made (4) 10ohm resistors in parallel smoke. I think it's working.
[04:36] <aadamson> yeah... good news and good luck tomorrow I'm off to bed... when does the event start?
[04:52] <kd2eat> Thanks!
[04:52] <kd2eat> We launch at 11:00am. w2cxm-11 on aprs.
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[05:42] <Reb-SM3ULC> morrn
[05:45] <Reb-SM3ULC> hipi sunrise!
[06:15] <fsphil> I shall title image 31 as "Top of the Morning"
[06:20] <fsphil> that almost looks like cloud in 32
[06:21] <fsphil> noctilucent? or lens flare
[06:22] <Reb-SM3ULC> Down to zero speed around 02, that's slow.. :)
[06:22] <mikestir_2E0MXS> have you been up all night fsphil?
[06:23] <fsphil> mikestir_2E0MXS: nah, just up
[06:24] <mikestir_2E0MXS> got sunrise after all
[06:24] <fsphil> I'm the only receiver atm
[06:25] <mikestir_2E0MXS> yeah it's out of my range - welsh hills in the way
[06:26] <mikestir_2E0MXS> it's getting higher though
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[06:26] <fsphil> yea, it should get higher than yesterday
[06:31] <mikestir_2E0MXS> the predictor is still saying west, but reality seems to disagree
[06:34] <Reb-SM3ULC> nice sky on nr34
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[06:41] <fsphil> past 36km again
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[06:45] <mikestir_2E0MXS> oh it is starting to follow the prediction now after that little kink
[06:46] <fsphil> that might help, it's not going directly away from me now
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[06:46] <mikestir_2E0MXS> it's probably barely too weak for ssdv packets for me
[06:47] <mikestir_2E0MXS> it wouldn't need to come up much
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[06:48] <fsphil> 200m below peak altitude
[06:48] <mikestir_2E0MXS> need to get on 40m for some irish hams
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[06:49] <fsphil> a receiver in Cork would be ideal right now
[06:49] Nick change: slubber -> slobber
[06:50] Nick change: slobber -> Guest3882
[06:50] Nick change: Guest3882 -> slubber
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[06:53] <fsphil> ah, GW7HPW joins the action
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[06:56] <mikestir_2E0MXS> I don't think I'm going to be seeing any more packets
[06:57] <mikestir_2E0MXS> I did briefly have a remote rx up in the welsh hills
[06:57] <mikestir_2E0MXS> should try to get that up and running again
[06:57] <fsphil> yea I'm hoping to setup something similar here
[06:58] <mikestir_2E0MXS> It was backhauled over 3g before, so limited capacity. I reckon I'd get a WiFi link back to here though
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[07:00] <fsphil> I'm hopefully going to be able to use wifi
[07:00] <fsphil> this balloon doesn't seem to be in any rusi h
[07:00] <fsphil> rush to beat it's previous altitude
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[07:01] <fsphil> what are the odds it'll survive sunrise
[07:02] <jcoxon> i think it might you know
[07:02] <fsphil> mmm
[07:03] <fsphil> it'll be down to battery life
[07:03] <jcoxon> and range
[07:03] <jcoxon> could do with some southern irish trackers
[07:03] <fsphil> I've emailed someone who should know a few, not heard back
[07:04] <jcoxon> in Image 27 is that venus?
[07:04] <kpiman> morning. some good dawn images coming in.
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[07:05] <fsphil> yes, venus was just above the horizon
[07:06] <fsphil> mars was on the opposite part of the sky
[07:06] <fsphil> imaged a few planets on this flight
[07:06] <jededu_> Is there link to the images
[07:07] <MarkR> fsphil: this flight is amazing, I love the pics!
[07:07] <kpiman> I like the colours on 34
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[07:08] <MarkR> oh the image counter wrapped back to zero :)
[07:09] <MarkR> now u just hope some receivers get out of bed in west coast of Ireland
[07:09] <fsphil> yes not often that happens
[07:09] <fsphil> (the counter thing, not bed)
[07:09] <fsphil> ah, the sun just appeared here
[07:10] <fsphil> it's just a few metres below yesterdays peak altitude
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[07:11] <Martin_G4FUI> Your HIPI pictures would make a nice Powerpoint slide show, fsphil ...
[07:11] <Martin_G4FUI> ... or even a screensaver!
[07:13] <fsphil> this is the longest I've tracked a single flight
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[07:13] <fiftydollarsat> fsphil: Yep, good morning. the transmissions have been very handy to check out my stuff here, so far;
[07:13] <kpiman> Mars and Saturn on image 217?
[07:14] <fiftydollarsat> My co-linear is a lot better than my QF helix at low elevation stuff, but the differance, 15dB or so suprised me.
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[07:15] <jededu_> fsphil: is this the picam
[07:15] <fiftydollarsat> My FT817 is slightly better than my Funcube pro+, the Funcube seems more affected by a lot of local QRM.
[07:16] <fsphil> jededu_: yes
[07:17] <fsphil> this is being received by my ft817 and it's doing a really good job
[07:17] <fiftydollarsat> And the G4DDK 70cm VLAN (at £55 for the kit) is about as good as an SP7000 masthead, which costs around 8 times as much.
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[07:18] <fiftydollarsat> I meant the G4DDK 70cm VLNA
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[07:19] <fiftydollarsat> Great job on these propogation beacons guys.
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[07:20] <DL7AD> morning
[07:20] <DL7AD> fsphil: morning
[07:20] <fsphil> morning DL7AD
[07:20] Nick change: slobber- -> slobber
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[07:20] <DL7AD> fsphil: do you think its difficult to manage?
[07:21] <fsphil> I always find mornings difficult to manage
[07:21] <DL7AD> indeed
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[07:27] <DL7AD> fsphil: how long will the batteries survive?
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[07:28] <fsphil> my estimate was 26 hours. perhaps up to 9 or 10am
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[07:32] <fsphil> I wonder if a light enough solar panel could run a payload like this
[07:33] <MarkR> wouldn't a solar panel get tangled in the wires, parachute etc, or be illegal due to concerns for damage / injury on landing?
[07:34] <fiftydollarsat> On the sunject of solar panels, where did the solar panles for B-41 come from ?
[07:34] <fsphil> I'd have the panels flat on the payload box
[07:35] <fiftydollarsat> I have been playing with the TASC cells, which are about as good as they get, but they are very fragile indeed.
[07:36] <jcoxon> ping Upu
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[07:36] <amell_> Lovely sunrise
[07:37] <nosebleedkt> hello everyone
[07:37] <amell_> Could do with more receivers if possible
[07:39] <fsphil> looks wet down there
[07:39] <amell_> HiPi is almost at the location where the HMS Lusitania sank
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[07:40] <MarkR> fsphil: where does the temperature data come from? inside the box or outside? it was pretty chilly in the night.
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[07:41] <fsphil> MarkR: it's the GPU temperature. the warmest part of the payload :)
[07:41] <fsphil> well maybe not true, the voltage regulator would be fairly warm too
[07:42] <amell_> What temp was that?
[07:42] <fsphil> unknown, probably a few degrees warmer than the gpu
[07:42] <Upu_M0UPU> hey jcoxon
[07:42] <MarkR> it recorded -33 in the night
[07:43] <amell_> Can't get more receivers in the south?
[07:43] <fsphil> I'm not sure I'd trust the sensor. it's probably +/-10 out
[07:44] <fsphil> yea there's a bit of a gap in receivers at the moment
[07:44] <MarkR> presumably the chip isn't rated to operate at that temp anyway, so it doesnt matter if its sensor is wrong
[07:44] <Upu_M0UPU> uh wait a min its not climbing
[07:45] <fsphil> hehe yea
[07:45] <fsphil> I do believe it survived sunrise
[07:45] <Upu_M0UPU> how old is this 1600g ?
[07:45] <fsphil> a few weeks ago it was at steves house
[07:45] <fsphil> pretty new
[07:45] <Upu_M0UPU> odd
[07:46] <fsphil> it dropped very little overnight
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[07:51] <fsphil> a transatlantic flight from east to west would take forever
[07:52] <jcoxon> it would
[07:52] <jcoxon> lots of loops
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[07:56] <Upu_M0UPU> I'm going to make a solar powered Pi :)
[07:56] <fsphil> this one used about 140ma
[07:56] <Upu_M0UPU> easy
[07:57] <Upu_M0UPU> industrial 18600
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[07:57] <Upu_M0UPU> need quite a few panels though
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[08:01] Nick change: Upu_M0UPU -> Upu
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[08:04] <DL7AD> Upu cool :)
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[08:14] <daveake> OK, so how come HiPi didn't become NotQuiteSoHiPi lasty night, to then become HiButAboutToBurstPi now ?
[08:15] <daveake> -y
[08:16] <fsphil> only differences between this and orion, faster ascent and slightly heaver payload
[08:17] <fsphil> the night time float was not that stable either
[08:18] <daveake> This is what mine did http://www.daveakerman.com/wp-content/uploads/2013/04/float.png
[08:18] <fsphil> it varied quite a bit
[08:18] <daveake> ok
[08:18] <fsphil> yours did too from the looks of it
[08:24] <fsphil> IR heating from the ocean?
[08:25] <fsphil> that would apply to the CNSP too
[08:25] <fsphil> CNSP flights*
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[08:28] <fiftydollarsat> Is the UKC_WTM5 launch at Ross-on-Wye going ahead this morning at 11:00 as planned ?
[08:29] <fiftydollarsat> I asked in the UKHAS group, and someone has added a comment, but its showing as 'This message has been deleted'
[08:35] <Upu> hey fiftydollarsat
[08:35] <Upu> I believe so speak to daveake
[08:37] <Upu> pass that heating theory via Leo
[08:37] <Upu> I wonder if it fits in with his ideas
[08:38] <fiftydollarsat> Hoe do I speak to daveake ?
[08:38] <Upu> ping Darkside
[08:38] <Upu> doh
[08:38] <Upu> ping daveake
[08:38] <fsphil> smoke signals
[08:38] <Upu> unping Darkside
[08:38] <fsphil> haha
[08:39] <daveake> pung
[08:39] <fsphil> no sign of land in any of these images
[08:39] <daveake> yes afaik Thomas etc will be here at 11
[08:40] <daveake> interesting thought re IR
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[08:43] <fiftydollarsat> daveake: So as far as you know the launch goes ahead as planned ?
[08:43] <daveake> yup
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[08:45] <fiftydollarsat> Thanks
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[08:51] <mikestir_2E0MXS> stupid hills
[08:52] <fsphil> hehe
[08:52] <fsphil> they can also be a force for good :)
[08:53] <fsphil> it's current direction means it's not really getting much further from me
[08:54] <fsphil> I'm probably close to my receivers limits
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[08:55] <Upu> need someone in Cork
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[09:01] <fsphil> no replies to any of my emails yet
[09:02] <fsphil> everyone's having a lazy morning :)
[09:04] <daveake> We need a Thunderbirds-like "International Tracking" organisation. "Hello, my balloon is heading over the Atlantic, can you send someone?""Virgil, get your arse downt to Cork. And take Brains in Pod 4"
[09:05] <mikestir_2E0MXS> need to relay it from your payload daveake
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[09:07] <SP9UOB-Tom> daveake: geostationary sattelite should be enough :-) Or better constellation of those :-)
[09:07] <fsphil> I might pack the yagi's into the car and head up the local hill
[09:07] <SP9UOB-Tom> eventually TDRSS access :-)
[09:08] <malgar> http://ssdv.habhub.org/images/2014-03-23--05-54-44-HIPI-A33.jpeg?u=30 this is venus
[09:08] <fsphil> it is
[09:08] <fsphil> there's also an image of Mars
[09:09] <fsphil> and the star Spica
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[09:09] <fsphil> I'm surprised it didn't image jupiter
[09:09] <fsphil> it would have set before sunrise
[09:10] <daveake> erm, -15.7m/s
[09:10] <fsphil> aaah ha
[09:10] <fsphil> that explains the dropped packet :)
[09:10] <daveake> You might need to hurry :p
[09:10] Action: fsphil decides to stay in bed
[09:11] Action: daveake stops playing Thunderbirds music in his head
[09:11] <malgar> faaaaaaaalliiiing
[09:11] <fsphil> I won't keep the signal very long
[09:12] <daveake> nope
[09:12] <malgar> now fsphil take your kayak and go to recover it
[09:12] <Upu> well thats interesting
[09:13] <fsphil> it didn't ascend that fast, I didn't expect a burst
[09:13] <daveake> nor me
[09:13] <daveake> quite a low burst for a 1600
[09:14] <malgar> last minutes of this wonderful mission
[09:14] <malgar> :)
[09:14] <fsphil> nah not decoding the position strings anymore
[09:15] <fsphil> it's at 24.4km
[09:15] <fsphil> 22.9
[09:16] <fsphil> ah got that string
[09:17] <fsphil> 20xxx km
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[09:19] <fsphil> fading fast
[09:20] <fsphil> and basically gone
[09:21] <daveake> excellent flight there fsphhil
[09:21] <daveake> -h
[09:21] <daveake> great set of images
[09:22] <fsphil> a very unusual one
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[09:26] <SP9UOB-Tom> fsphil: its unfair, it should land on the island. Congratulations :-)
[09:27] <fsphil> I was kinda hoping for the isle of man yesterday :)
[09:27] <fsphil> it'll be interesting to see if it washes up somewhere
[09:28] <ibanezmatt13> Well done fsphil, lovely sunrise on ssdv this morning
[09:28] <SP9UOB-Tom> it'll be found together with missing Malesian Boeing ;-)
[09:28] <fsphil> tracked for 24 hours
[09:28] <ibanezmatt13> What was the power setup?
[09:28] Action: fsphil rests fldigi
[09:29] <malgar> fsphil: well done :)
[09:29] <fsphil> six energiser lithium AAs
[09:29] <fsphil> 2x3
[09:29] <ibanezmatt13> Ah cool
[09:29] <SP9UOB-Tom> fsphil: then stepdown or LDO ?
[09:29] <fsphil> ldo
[09:29] <malgar> ldo?
[09:30] <SP9UOB-Tom> littlebit of heat is good :-)
[09:30] <fsphil> low dropout regulator
[09:31] <fsphil> right, time for food! :)
[09:32] <number10> happy birthday daveake
[09:32] <daveake> cheers :)
[09:36] <eroomde> hbd daveake
[09:37] <daveake> tyvm
[09:37] <SA6BSS> fsphil: What antenna where you using tracking HIPI?
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[09:40] <number10> did you win anything eroomde ?
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[09:43] <fsphil> SA6BSS: diamond x-50
[09:43] <fsphil> ooh happy birthday daveake. is there cake? :)
[09:45] <eroomde> number10: came out about £15 on top!
[09:45] <munty> Congrats fsphil, fantastic flight and images from hipi!
[09:45] <number10> probably bacon buttie cake at this time fsphil
[09:45] <eroomde> got lucky on a 14:1, otherwise just the usual nothingness
[09:45] <number10> thats not bad, getting paid for a day out
[09:45] <eroomde> yra fsphil, that was some champagne habbing
[09:45] <eroomde> yeah*
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[09:46] <eroomde> image 41 (+255) is wonderful
[09:46] <eroomde> my fav
[09:48] <daveake> Not spied any cake yet fsphil :(
[09:53] <SA6BSS> fsphil: ok
[09:53] <SA6BSS> fsphil: masthead amp ?
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[09:58] <amell> did it burst?
[09:59] <fsphil> SA6BSS: nope. x-50 > 5m rg213 > ft817
[09:59] <fsphil> amell: yep :)
[09:59] <amell> how do you know it burst and not out of range?
[10:00] <fsphil> the huge drop in altitude
[10:00] <fsphil> it should still be falling
[10:00] <amell> ah see it now :)
[10:00] <fsphil> for another 5 or so minutes anyway
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[10:01] <amell> big chute?
[10:01] <fsphil> yea, well oversized
[10:01] <amell> nothing from b41 yet. wondering if we'll ever hear from it again
[10:02] <amell> its probably sitting on the ayatollahs dinner table right now.
[10:02] <fsphil> was a good launch. I'll try and get a copy of the video. it missed the nearby building by about 1m
[10:03] Action: daveake hums "When WillI Track You Again" by the 3 degrees (below horizon)
[10:05] <eroomde> when will we share precious modems?
[10:05] <fsphil> can you hear the rtty tonight
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[10:09] <malgar> b-41 seems lost in iran :P
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[10:26] <fsphil> nice optical illusion: http://ssdv.habhub.org/images/2014-03-23--06-23-10-HIPI-A39.jpeg
[10:26] <fsphil> the gap on either side is exactly the same colour
[10:27] <G8APZ> Did HIPI burst and go down in the sea SW of Ireland?
[10:27] <fsphil> it did indeed
[10:27] <fsphil> the winds may push it inland, it could wash up
[10:27] <G8APZ> Aww....
[10:27] <fsphil> well it was that or the battery failing
[10:27] <fsphil> at least this way we know where it ended up
[10:27] <G8APZ> the image number could do with 2 bytes not one!!
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[10:28] <G8APZ> If HiPi was in a floatable container.... it may be washed up on a beach somewhere
[10:30] <G8APZ> a good flight though, despite the difficulties of finding overland paths in Ireland
[10:30] <Geoff-G8DHE> I see there were more lights appearing about01:45 in the morning but I lost the signals shortly after that
[10:30] <db_g6gzh> morning
[10:30] <fsphil> the container should float pretty good
[10:30] <G8APZ> Morning all
[10:30] <Geoff-G8DHE> 880Kms in total distance http://360.g8dhe.net/HAB_Flights/2014_Flights/HiPi_20140322/index.php?ind=154
[10:31] <db_g6gzh> some nice morning pictures, good flight fsphil
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[10:36] <LazyLeopard> fsphil: Wow, that's an impressive collection of SSDV. Sorry I missed it.
[10:36] <eroomde> beautiful isn't it
[10:38] <tweetBot> @G8DHE: @fsphil Our pleasure! Getting ready for UKC_WTM5 #ukhas #hab #hamr
[10:41] <Geoff-G8DHE> Is there a video stream from Ross-On-Wye ?
[10:42] <db_g6gzh> http://www.batc.tv/ch_live.php?ch=5&id=1189
[10:43] <db_g6gzh> was in Dave's email
[10:43] <Geoff-G8DHE> That interface is the pits, you have to go to the multi-selector to get the choice either that or I'm missing something... don't all shout at once
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[10:44] <eroomde> Geoff-G8DHE: agreed
[10:44] <eroomde> i'm not it's biggest fan
[10:44] <eroomde> modulo the obvious qualification that i'm very thankful for batc for existing and volunteering and filming and hosting, all gratis
[10:44] <fsphil> batc? it's been mentioned :)
[10:45] <Geoff-G8DHE> Well yes I can't complain but at least I'm a member :-)
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[10:45] <Geoff-G8DHE> time for a coffee and see what I can find for breakers
[10:46] <Geoff-G8DHE> afk
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[10:53] <db_g6gzh> previously I've created a local page, once I've worked out the actual stream URL, to view without the clutter
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[10:53] <S_Mark> Hi is daveake still on for 11:00 ?
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[10:59] <daveake> I'm just supplying the launch site; UI'm just going to sit and watch Thomas_UKC and his time launch :)
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[11:01] <daveake> They should be here in the next 30 mins
[11:02] <Steve_G0TDJ> 'Morning Guys
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[11:06] <SpeedEvil> Morning
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[11:07] <UKC_WTM5_chase_c> Test test
[11:07] <Steve_G0TDJ> Test positive
[11:08] <Steve_G0TDJ> fsphil: Fantastic flight. I love image 126
[11:08] <UKC_WTM5_chase_c> Thanks, in case car at the moment. Nearly in ross on wye
[11:09] <Steve_G0TDJ> Lookng forward to your flight UKC_WTM5_chase_c
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[11:19] <mikestir_2E0MXS> got into japan on 10m wspr. nice
[11:19] <mikestir_2E0MXS> not managed that before
[11:20] <Steve_G0TDJ> Nice one mikestir_2E0MXS :-)
[11:20] <Steve_G0TDJ> I've only worked Japan on the Key a few times and certianly not from this location.
[11:20] <mikestir_2E0MXS> wonder if it's workable on psk
[11:21] <Steve_G0TDJ> Should be, given the right condx
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[11:24] <Neil_M0CJM> Morning
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[11:24] <Steve_G0TDJ> Hey Neil - Felix :-)
[11:24] <Neil_M0CJM> Felix??
[11:25] <Steve_G0TDJ> Yeah, DL1SGP
[11:25] <Steve_G0TDJ> Maybe I should have used an &
[11:25] <Neil_M0CJM> Oh sorry not seen him on here, just cleared my screen..lol
[11:25] <Steve_G0TDJ> :-)
[11:25] <Neil_M0CJM> This launch going on this morning?
[11:25] <Steve_G0TDJ> Apparently. Just on the way to Launch Site
[11:25] <Steve_G0TDJ> Dave's
[11:26] <Neil_M0CJM> ok, just rushed back from Newbury as thought it was an 11am one but noting on sacenear.us so thought had wasted my time
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[11:26] <eroomde> 11am ISH
[11:26] <Geoff-G8DHE> Object Movie for HiPi flight http://360.g8dhe.net/HAB_Flights/2014_Flights/HiPi_20140322/HiPi_20140322.html
[11:26] <Steve_G0TDJ> Yeah, Ed has it... Ish
[11:26] <mfa298> sounds more like 11 ish arrive at launch site rather than 11am launch
[11:27] <eroomde> International Standard HAB timezone
[11:27] <Steve_G0TDJ> LOL
[11:27] <Neil_M0CJM> guess so, nevermind aslong as it launches :-)
[11:27] <eroomde> which is between 0 and 6 hours offset from the local timezone
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[11:27] <Steve_G0TDJ> eroomde: Can it be a minus number too?
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[11:27] <Neil_M0CJM> +- 6 hours :-)
[11:27] <eroomde> depending on bugs in your c code, forgetting the spanner for the regulator, that bacon buttie being so delicious you just need another one, and other programmatic factors
[11:28] <eroomde> Steve_G0TDJ: i suppose it *could* be negative
[11:28] <Geoff-G8DHE> http://ukhas.org.uk/general:glossary:ish?s[]=ish
[11:28] <eroomde> in the same way that there could be a teapot orbiting mars
[11:28] <Steve_G0TDJ> eroomde: As in, Damn, they launched early!
[11:28] <eroomde> it's not ruled out by the laws of physics, but it's just such an improbable event, and difficult to observe
[11:28] <Neil_M0CJM> You know, as an aside I am shocked
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[11:29] <GMT> or as in "damn, Leo's launched another one and not told anybody" time
[11:29] <Steve_G0TDJ> That's what I meant GMT
[11:29] <eroomde> that's a heisenlaunch
[11:29] <Neil_M0CJM> Just went into PCWorld looking at laptops and asked if they had a laptop with RS232 / serial port fitted and 3 salesman said "whats one of them!"
[11:29] <eroomde> if leo launches a balloon and doesn't tell anyone to receive it, did it fly?
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[11:30] <Steve_G0TDJ> Neil_M0CJM: You expected them to KNOW?
[11:30] <eroomde> Neil_M0CJM: i suspect i could answer that questionf or you in advance :)
[11:30] <GMT> or "damn, Leo's launched another one and posted details on the wrong thread on UKHAS"
[11:30] <Neil_M0CJM> Well, they said they are the PC Superstore and the know all guys
[11:30] <eroomde> i think FTDI cables have won that game
[11:30] <Neil_M0CJM> they Ok under windows 8?
[11:30] <eroomde> Geoff-G8DHE: nice object mobie
[11:30] <eroomde> thanks
[11:31] <eroomde> Neil_M0CJM: i'm not actually sure (linux here) but i'd be surprised if they didn't given so much stuff is based on them now
[11:31] <Geoff-G8DHE> Long flights don't always lend themselves to OM's but as this one curled around ..
[11:31] <Neil_M0CJM> eroomdeIWill look into it
[11:31] <daveake> Don't remember seeing a floater where the launcher tracked it throughout :)
[11:31] <eroomde> is it for an existing rs232 connector?
[11:32] <eroomde> or do you just want to get ttl-serial somewhere?
[11:32] <Steve_G0TDJ> Hi daveake Happy Birthday :D
[11:32] <daveake> hi Steve :)
[11:32] <eroomde> daveake: there have been a few overnighters like that
[11:32] <daveake> ah ok
[11:32] <daveake> cool
[11:32] <eroomde> in the summer when the high alt winfs are quite still
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[11:32] <eroomde> leo's jet-stream huggers have recalibrated everyone's floating expectations
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[11:33] <Neil_M0CJM> eroomde I write code for work to talk to data loggers, thermometers etc and the all have rs232
[11:33] <eroomde> but there are nice days when sometimes you could just let it go and it would stay above your head for 24 hours then fall down onto your head
[11:33] <mfa298> Neil_M0CJM: I know the pl2303 usb-serial dongles can be a bit iffy on win7/win8, I've not used ftdi myself, I've got a much more expensive BrainBoxes USB/Serial adapter which works well on Win7/Win8
[11:34] <Neil_M0CJM> mfa298 Thanks for that wil take a look
[11:34] <eroomde> i use the ftdi->ttl cables a lot
[11:34] <eroomde> they come in nice flavours like 5V, 3v3, 1v8
[11:34] <mfa298> ftdi is probably worth a try.
[11:34] <eroomde> i returminate the header with a milspec circular and put the corresponding connector as a debug on bits of equipment i make
[11:35] <mfa298> The brainboxes one I've got was something like £30-£40
[11:35] <eroomde> it works quite nicely
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[11:35] <Neil_M0CJM> I have heard of brainboxes and they have a good name from what I have heard
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[11:37] <SA6BSS> alot of the pl2303 serialls using pirate serialship so you have to cancel the windows update driver from updating and manualy install the driver
[11:37] <amell> whats the prediction for ross on wye launch?
[11:38] <SA6BSS> if anyony one want the driver I post a link
[11:38] <Geoff-G8DHE> Cool but Sunny
[11:38] <amell> liking the POP1 external temperature. bit extreme.
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[11:40] <Geoff-G8DHE> Could be a wet landing http://predict.habhub.org/#!/uuid=b56d434681f2a7242c421af3f798bba4855e3547
[11:40] <amell> got the video up. Looks like a scene from one man and his dog.
[11:40] <amell> expecting sheep to appear shortly.
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[11:41] <amell> not an ideal path
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[11:42] <Geoff-G8DHE> more gas ...
[11:42] <Neil_M0CJM> Just been sniffing round the brainboxes website, yummy stuff on there :-)
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[11:45] <mfa298> hmmm, the sunshine has turned into gusty wind and rain down this way. The landing could be wet whether it's on land or sea!
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[11:54] <Neil_M0CJM> Hail storm going on here now.
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[11:56] <daveake> yeah just been having a discussion about where it's landing ....
[11:57] <daveake> and other stuff
[11:57] <Steve_G0TDJ> Are they going to chase daveake?
[11:57] <gonzo_nb> morning. HIPI still up. Nice one
[11:58] <fsphil> no longer gonzo_nb
[11:58] <fsphil> it's swimming with the fishies
[11:58] <gonzo_nb> ah, sn is lying to me
[11:58] <craag> gonzo_nb: Went out of range early on the descent
[11:58] <fsphil> it was out of range, the last decode was over 20km up
[11:58] <gonzo_nb> a good flight though
[11:59] <craag> Yeah amazing pics fsphil !
[11:59] <fsphil> annoyingly I got a reply to my request for stations on the south coast about 20 minutes ago :)
[11:59] <fsphil> but at least I know a few now, should be able to get them tracking quicker if this happens again
[11:59] <fsphil> really odd flight path though
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[12:00] <gonzo_nb> ah, ok. updated sn.
[12:03] <daveake> yes they're chasing Steve_G0TDJ
[12:03] <Steve_G0TDJ> Cheers
[12:04] <S_Mark> windy here daveake
[12:04] <S_Mark> should be high by the time it gets here though
[12:05] <GMT> given the predictions, maybe they should have launched from home and gone to France for the chase/recovery
[12:05] <daveake> windy here too :/
[12:05] <daveake> hah yes
[12:06] <an112> Anyone here know of any offline tracking software? I'm looking for something that makes the decoded strings from fldigi into something easy to use. Without relying on habitat.
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[12:07] <eroomde> an112: you can turn on logging in fldigi
[12:07] <Geoff-G8DHE> Front page of the Wiki under news ?
[12:07] <eroomde> that'll give you a text file with the same stuff as appears in the decode window
[12:07] <Geoff-G8DHE> https://play.google.com/store/apps/details?id=com.brejza.matt.habmodem
[12:07] <eroomde> you just just poll that file and do what you want with the data
[12:07] <mfa298> an112: dl-fldigi will give you lat/long you can plug into something else - or if you have an android device there's the hab tracker and modem
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[12:09] <an112> Ah thanks! Yeah. that android app could work. Windows/Linux would be better though. Guess I can make it myself as well.
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[12:28] <Steve_G0TDJ> On the map
[12:28] <fsphil> it looks very breezy
[12:28] <daveake> Random question. If a u7blox isn't in flight mode, what altitude does it crap out at?
[12:29] <fsphil> 18km iirc
[12:29] <craag> daveake: 18km?
[12:29] <daveake> ta thought so
[12:29] <craag> Will we be looking at a decapitated altitude graph?
[12:30] <daveake> On a completed unrelated subject, this flight will be carrying one of my trackers for backup
[12:30] <craag> hehe
[12:30] <fsphil> aaaah
[12:30] <daveake> Good job I ask questions :)
[12:30] <Steve_G0TDJ> What freq. daveake?
[12:31] <mfa298> sounds like another good reason that we persauded them not to launch from kent
[12:32] <fsphil> I see no bacon on this video stream daveake. this is clearly wrong
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[12:34] <fsphil> that's a fantastic back garden :)
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[12:34] <Steve_G0TDJ> Just imagine the antenna farm you could have....
[12:34] <fsphil> lol
[12:35] <StaticJay> Good job on Hipi what the odds of recovery?
[12:35] <craag> StaticJay: Nil, it's swimming.
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[12:37] <StaticJay> Thatd the bit that would put me off the lost equipment I love my tech!
[12:37] <craag> StaticJay: Float flights are very unpredictable as you have no idea if/when they're gonna burst.
[12:38] <craag> And being on islands.... we're used to losing stuff in the sea from time to time!
[12:39] <StaticJay> ahh so you so adjust payload for different flights, what would be difference be in equipment for a floater and a recoverable flight?
[12:39] <daveake> OK, for trackers ... the UK payload is on 434.125, 7N1 and 500Hz shift (ignore the auto-config)
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[12:40] <daveake> And BUZZ will be on 434.600, 7N1, 50 baud, 40Hz shift
[12:40] <Steve_G0TDJ> Cheers Dave
[12:40] <daveake> Expect UKC to crap out above 18km
[12:42] <mfa298> 40Hz shift - I suspect a missing digit in there
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[12:42] <fsphil> StaticJay: for the stuff-you-want-to-get-back flights, it's just a matter of choosing the day carefully based on the predictions
[12:42] <fsphil> and careful control of the ascent rate
[12:42] <fsphil> but there is always risk
[12:43] <craag> Yeah the prediction tools for up-burst-down flights allow about 90% (?) recovery.
[12:43] <fsphil> http://predict.habhub.org/hourly/cookstown/ <-- Tuesday would be an ideal day
[12:43] <craag> Most of that 10% is then trees, tracker errors, etc.
[12:43] <fsphil> today not so much
[12:43] <mikestir_2E0MXS> we landed nowhere near any coastline... 200 yards from a quarry
[12:44] <mikestir_2E0MXS> they were blasting when we got there
[12:45] <fsphil> we'll hopefully be doing a few proper flights this year
[12:45] <fsphil> chasing is pretty good fun
[12:45] <SpeedEvil> http://www.youtube.com/watch?v=FuD8KXPD3HI (sort-of-on-topic)
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[12:47] <StaticJay> I follow most of the N.I flights started with the Lismore school one last year was epic!
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[12:53] <craag> Is the control bar for the batc player not showing for anyone else?
[12:54] <Steve_G0TDJ> No, just a thin grey line
[12:54] <craag> Yep, strange..
[12:54] <mikestir_2E0MXS> and it won't full-screen
[12:54] <craag> mikestir_2E0MXS: That's why I'm asking, looks a nice-quality stream for once!
[12:55] <Steve_G0TDJ> Inflating....
[12:55] <mikestir_2E0MXS> the multi-screen view does have the buttons but it still wouldn't go full screen
[12:56] <Steve_G0TDJ> Looks like it's going to be a fun (difficult) launch with that wind!
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[12:58] <S_Mark> wow windy
[12:59] <Steve_G0TDJ> Dave'll get lifted off the ground in a minute!
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[13:00] <db_g6gzh> you could try http://stuff.dbrooke.me.uk/ukc_wtm5.html which just embeds the stream and goes full screen for me
[13:00] <an112> daveake: fyi, according to the ublox datasheet default (non flight) mode of the ublox 7 will max out at 12k. not 18k. That's according to the specs though, it might work above it if you're lucky.
[13:01] <craag> http://habmap.philcrump.co.uk/m0rpi.html
[13:01] <craag> ah nice one db_g6gzh ;)
[13:02] <craag> Although I believe yours adds a few pounds :P
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[13:03] <fsphil> craag: I have the stream playing nicely on my Pi
[13:03] <craag> fsphil: Oh, what player?
[13:03] <db_g6gzh> I stole most of it from someone else, possibly you, so maybe the aspect is not right for this source
[13:03] <fsphil> no html, flash or chat interface at all :)
[13:03] <fsphil> omxplayer
[13:04] <an112> I thought your Pi went swimming ;)
[13:04] <fsphil> one of them lol
[13:04] <fsphil> they seem to breed
[13:04] <an112> xD
[13:06] <fsphil> that's a well filled balloon
[13:07] <LeoBodnar> is Dave milking it?
[13:07] <fsphil> lol
[13:07] <Geoff-G8DHE> The aspect ratio on the BATC stream looks suspect what is the Pi Cam ratio ?
[13:07] <fsphil> did look like it
[13:07] <fsphil> the stream is 16:9 Geoff-G8DHE
[13:07] <fsphil> everyone's getting squashed
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[13:10] <fsphil> playing pong with the balloon
[13:11] <fsphil> it's pretty big
[13:12] <Steve_G0TDJ> Has anyone got ADMIN powers in the BATC chat? Got some undesirables in there.
[13:12] <Neil_M0CJM> Steve_G0TDJ Just about to say the same got some tw**s in there
[13:12] <fsphil> :(
[13:12] <fsphil> craag: ^^ ?
[13:13] <fsphil> wow
[13:13] <fsphil> gusty
[13:13] <Upu> whats the batc.tv stream link ?
[13:14] <Steve_G0TDJ> http://www.batc.tv/ch_live.php?ch=5&id=1189 Upu
[13:14] <G8APZ> Does BATC chat have a /kick user facility?
[13:14] <Neil_M0CJM> They need to maunch that thing before it pops!
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[13:14] <G8APZ> there are some annoying twerps on there
[13:14] <craag> Only the stream owner has those powers
[13:14] <craag> iirc
[13:15] <aadamson> so did hipi just decide to take a bath?
[13:15] <fsphil> man this is hard to watch
[13:15] <fsphil> aadamson: indeed
[13:15] <aadamson> in salt water
[13:15] <aadamson> too bad, the winds just weren't a little better back on shore
[13:15] <Steve_G0TDJ> Dave checking boyancy
[13:16] <mattbrejza> can you still post html in the chat?
[13:16] <fsphil> they 'fixed' that by only allowing a-zA-z0-9 and space
[13:16] <Upu> I have no idea how to moderate the channel
[13:16] <Upu> even if I have permisisons
[13:16] <mattbrejza> well i guess that works
[13:17] <Neil_M0CJM> how do i change my username in the batc chat?
[13:17] <Steve_G0TDJ> You could try slash-kick
[13:17] <Upu> type /nick M0CJm and then press submit
[13:17] <Upu> doesn't seem to be a command
[13:17] <Upu> ping craag are there any moderation commands on here ?
[13:18] <Neil_M0CJM> cool done :-)
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[13:18] <Neil_M0CJM> They are going to loose that balloon soon!
[13:18] <mfa298> could always point out the line above the chat window "Please note, your IP address and all activity on this chat is logged. "
[13:19] <Steve_G0TDJ> That balloon needs to be netted down
[13:19] <G8APZ> a plain simple set of moderator commands is needed.... kick user, ban user...ban ip address etc
[13:19] <fsphil> not going to be possible to accuratly measure lift in those conditions
[13:20] <Neil_M0CJM> I know I am ignorant here and dont mean to belittle the launch technicalities but surely all they have to do is inflate the balloon, connect up the payload, switch it on and off it goes. Am i missing something?
[13:21] <Geoff-G8DHE> Yes like how much lift
[13:21] <Upu> Neil you have to measure the lift
[13:21] <Upu> which in that wind is lol
[13:22] <Steve_G0TDJ> It's a good thing they have Dave with them.
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[13:22] <fsphil> dave probably told them not to bother
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[13:24] <G8APZ> This sort of thing needs to be done in a barn!!
[13:24] <Upu> thats mad
[13:25] <Steve_G0TDJ> Nutty!
[13:25] <G8APZ> with a fence nearby it may get a wood splinter
[13:25] <Neil_M0CJM> Jesus wept!
[13:27] <fsphil> here we go
[13:27] <M0JCU_junderwood> If that doesn't hit the fence it will be a miracle
[13:29] <S_Mark> Thank you Mrs Ackerman
[13:29] <fsphil> haha
[13:30] <G8APZ> takes balloon out of the picture!! No embarrassing launch to be seen
[13:30] <G8APZ> spoke too soon.
[13:31] <fsphil> bang
[13:31] <db_g6gzh> oh no
[13:31] <fsphil> there goes the balloon
[13:31] <Neil_M0CJM> Thats the end of that!
[13:32] <S_Mark> oh dear
[13:32] <mikestir_2E0MXS> missed it - what happened?
[13:32] <mikestir_2E0MXS> lost or burst?
[13:32] <S_Mark> burst
[13:32] <fsphil> it hit the ground and burst
[13:32] <Neil_M0CJM> Burst
[13:32] <mikestir_2E0MXS> oh dear
[13:32] <Neil_M0CJM> Should of let it go earlier
[13:32] <M0JCU_junderwood> Hands up anyone who is surprised
[13:32] <Upu> that was H2
[13:33] <fsphil> still an expensive bang
[13:34] <G8APZ> fsphil part of the learning curve!
[13:34] <Geoff-G8DHE> They swapped cylinders at one point I thought ?
[13:34] <S_Mark> wonder if dave has a spare?
[13:34] <fsphil> well, they got the payload back
[13:34] <M0JCU_junderwood> I think they would need a serious change in the weather to try again
[13:35] <amell> what happened?
[13:35] <Steve_G0TDJ> Balloon burst
[13:35] <amell> did it go flying across the field?
[13:35] <amell> not sure why the payload would go over there
[13:36] <daveake> well that's a new one
[13:36] <Geoff-G8DHE> They walked it over to get the right takeoff direction
[13:36] <Steve_G0TDJ> Have they no backup balloon daveake?
[13:36] <daveake> they do
[13:36] <fsphil> what didt it hit?
[13:36] <fsphil> -t
[13:36] <daveake> they my advice is not to bother
[13:36] <Upu> every one ok ?
[13:36] <Steve_G0TDJ> Are they going for it?
[13:36] <daveake> they have a 200 (that was an 800)
[13:36] <fsphil> it looked bigger
[13:36] <fsphil> overfilled?
[13:37] <daveake> deliberately yes
[13:37] <Upu> H2 ?
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[13:38] <M0JCU_junderwood> daveake, probably worth taking 2 minutes to kick the children off your BATC feed
[13:39] <JFS1> Pass on commiserations to them - better luck with wind for next attempt
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[13:41] <craag> daveake: You might find it a bit difficult... you don't own the stream any more ;)
[13:41] <daveake> I've not looked
[13:41] <craag> Don't worry - we're on it.
[13:41] <daveake> OK they're taking my advice to not try again
[13:41] <daveake> :)
[13:42] <amell> always a better day
[13:42] <Steve_G0TDJ> Sensible
[13:43] <amell> they could always launch from elsworth - much closer to UKC
[13:44] <daveake> yup
[13:45] <amell> I would be happy to help them launch (not that i have any experience), am sure steve would too.
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[13:45] <Neil_M0CJM> <<<< Finds himself with nothing to do now
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[13:49] <daveake> Well I was the only person to offer help
[13:50] <daveake> otoh it's the biggest birthday balloon I've ever had :p
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[13:51] <fsphil> there's always a bright side ;)
[13:51] <daveake> :)
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[13:56] <aadamson> Upu, did kd2eat contact you about setting up an aprs feed to spacenear for his launch today from upstate NY?
[13:57] <G8APZ> CBBC Closing down... liked that!!
[13:59] <Steve_G0TDJ> Pretty apt in this instance!
[13:59] <eroomde> i liked CBBC
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[13:59] <mfa298> still a lot of them waiting around
[14:00] <LeoBodnar> what is CBBC?
[14:00] <G8APZ> Children's BBC
[14:00] <Steve_G0TDJ> Children's BBC
[14:00] <LeoBodnar> ah, that!
[14:00] <G8APZ> there were some juveniles on BATC chat
[14:01] <LeoBodnar> when you drive somebody to the airport at 5 AM on Sunday and then come back that was the only sensible channel to watch
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[14:01] <eroomde> or if you were 8
[14:01] <eroomde> which i once was
[14:01] <eroomde> within the last couple of decades too
[14:01] <eroomde> it was andy peters in the broom cupboard for me
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[14:02] <GMT> Tch, you youngsters! What about Wally Whyton and Olly Beak?
[14:02] <amell> bill and ben the flowerpot men, and larry the lamb
[14:03] <GMT> tell that to the kids of today and they'll thyink you're bonkers!
[14:03] Action: fsphil grew up on mutant turtles and thundercats
[14:03] <Steve_G0TDJ> Hector's HOuse and Ivor the Engine
[14:03] <eroomde> you're all my parents' generation
[14:03] <eroomde> cept phil
[14:03] <mikestir_2E0MXS> knightmare
[14:03] <GMT> I *am* your parent, get back in here and tidy your room Edward!
[14:03] <fsphil> oooh yes
[14:03] <fsphil> loved knightmare
[14:04] <mikestir_2E0MXS> although that was citv iirc
[14:04] <eroomde> was that the maze thing where you took a lift to different levels?
[14:04] <eroomde> and occassionally there was a darth-vader type character?
[14:04] <mfa298> knightmare was one of the few things to leave CBBC for - and I've still not watched the remake they did last year of it
[14:04] <fsphil> there was a remake?
[14:05] <mikestir_2E0MXS> there's loads of the original ones on youtube
[14:05] <fsphil> eroomde: new-ish snow?
[14:05] <fsphil> Trapped was quite good. I was stuck watching that recently in a waiting room
[14:05] <mfa298> fsphil: https://www.youtube.com/watch?v=74r-EbIqt9s
[14:06] <G8APZ> Not forgetting Annette Mills and Muffin the Mule...
[14:08] <G8APZ> http://www.youtube.com/watch?v=spQY2FbCUtM
[14:09] <Neil_M0CJM> I am out of here guys & gals, till the next time 73!
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[14:15] <fsphil> mfa298: that's not.. great
[14:16] <mfa298> I've only managed the first 5-10 mins so far. but didn't seem to be as good as it could be.
[14:16] <mfa298> I'm not sure if it gets better
[14:21] <fsphil> the players are a bit annoying
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[14:31] <Laurenceb> does anyone know of a pressure sensor which works up to ~40km altitude?
[14:31] <Laurenceb> aiui BMP180 suffers from overflow issues with its ADC
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[14:50] <marts> hi everyone; I am playing with the radiometrix ntx2 for the first time. I wonder why the tutorial (http://ukhas.org.uk/guides:linkingarduinotontx2) suggests centering the txd voltage around half the supply voltage. The radiometrix datasheet (http://www.radiometrix.com/files/additional/ntx2nrx2.pdf) simply states to supply a 3V signal.
[14:51] <eroomde> marts: do you understand what rtty is?
[14:52] <eroomde> i sort of know the answer to that question already, what i mean by asking it is that you should look it up
[14:52] <eroomde> then you will probably answer your own question
[14:52] <marts> nope I dont :), give me a minute to look it up
[14:53] <eroomde> cool, so we're using the ntx2s quite specifically to get the range
[14:53] <eroomde> the default app-note way is dumb
[14:53] <eroomde> fine for short range stuff
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[14:53] <eroomde> but no use for longer range ham-radio stuff
[14:53] <eroomde> look up rtty, understand that the ntx2 has a vco on the input
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[14:54] <eroomde> then you should be gravy
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[14:58] <mfa298> marts: maybe also try to understand how the voltage supplied is linked to the frequency deviation on the ntx2
[14:59] <marts> ok so rtty is basically a binary form of FM modulation
[15:00] <eroomde> exactly
[15:00] <eroomde> it shifts between two frequencies, one representing a 1, the other a zero
[15:00] <eroomde> the ntx2 maps the txd input voltage to a frequency
[15:01] <eroomde> rtty specifices a certain frequency difference between the 1 and the zero, say 450Hz
[15:01] <eroomde> so we have to choose 2 ntx2 input voltages that will map to the correct frequency shift
[15:02] <marts> ah ok you are trying to achive a specific frequency difference, while the manual simply goes for the biggest possible difference
[15:02] <marts> is this correct?
[15:02] <steveg7ahp> \';fgfylpfhkl[
[15:02] <steveg7ahp> +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++====
[15:03] <amell> oh dear
[15:03] <steveg7ahp> hi there, sorry I had a stuck key
[15:03] <daveake> cat_on_keyboard_error
[15:03] <mfa298> cat at the keyboard?
[15:03] <daveake> snap
[15:04] <eroomde> marts: yes, because it's designed to work with fm receivers in the manual
[15:04] <steveg7ahp> ok now for the real question. I have r pi, arduino, ada gps and ntx radio module, need some help please
[15:04] <eroomde> eg the nrx2
[15:04] <eroomde> but we use ssb
[15:04] <Geoff-G8DHE-M> marts, Yes the two different freq's give the required shift
[15:04] <eroomde> steveg7ahp: you'll have to do much better thn that
[15:05] <eroomde> just saying 'make it work' will cause a sense of humour failure here
[15:05] <eroomde> hab is a challenge, not a right
[15:05] <eroomde> infact i'm going to go before i get more annoyed
[15:05] <aadamson> hehe - eroomde :0
[15:06] <steveg7ahp> I have researched how to atatch the gps to the ardunio but how do you add the gps data to the rtty program
[15:06] <aadamson> steveg7ahp, you need to do much better than that
[15:06] <aadamson> I'll take over for eroomde
[15:06] <mfa298> steveg7ahp: unless you really need the power of the pi use the arduino for the payload.
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[15:06] <aadamson> you need to spend some time looking for arduino code to talk to the gps and then figure out how to integrate the 2 together.
[15:07] <steveg7ahp> ok yes I would agrree from my reasearch that the ard is teh way to go
[15:07] <aadamson> certainly people here will help when you get stuck, but they aren't going to do it for you :)
[15:07] <marts> thanks eroomde, that info will keep me going
[15:08] <mfa298> there's several good example bits of code on the wiki for arduino + gps and arduino +ntx2b
[15:08] <marts> (just for some background; I am designing my first playload (custom pcb with navspark microcontroller), accelerometer, gyrometer, barometer, temp sensor, magnetometer, sd card are already working, now I am trying to get the ntx2 to speak to me ;) )
[15:09] <steveg7ahp> ok thanks I will have a look ta
[15:10] <amell> marts: how much was the navspark ooi.
[15:11] <marts> its a indiegogo campain, 35usd for two, with gps integrated
[15:11] <amell> looks interesting. any idea of power consumption?
[15:11] <amell> just googled it and it appears to be spark.
[15:11] <amell> sparc.
[15:12] <marts> @amell: one sec
[15:12] <Geoff-G8DHE-M> marts, how high will the GPS allow you to work, many people, have problems in that they stop at 12Kms for many purposes
[15:13] <marts> its supposed to be >40km but I will have to see
[15:13] <Geoff-G8DHE-M> just this morning a froup failed with this, not all GPS will allow you to go to heights( and report) above 12Kms
[15:13] <marts> faq states 40mA...
[15:14] <marts> faq: http://pastebin.com/raw.php?i=1f5iXwiT
[15:14] <amell> 38x18mm GPS and arduino. interesting. would like to hear how you get on at height.
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[15:16] <marts> amell: I have only once tracked a weather balloon and not yet lauched a hab myself, so I probably wont be setting height records the first time ;-)
[15:16] <amell> has anyone used this navspark in HAB yet as far as you know?
[15:16] <marts> its not yet shipped to any customer, so no; I hope to get one in 1-2 month time
[15:17] <amell> oh, so you don't actually have one yet?
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[15:17] <marts> nope, its basically a kickstarter if you know that
[15:17] <Geoff-G8DHE-M> http://www.skytraq.com.tw/Commonly%20Asked%20Questions.pdf Not tested apparently for working at heights
[15:18] <marts> I am testing my hardware with an arduino nano and an level-shifter adapeter
[15:20] <amell> Q: Will the NavSpark be suitable for high altitude ballooning? How is COCOM limit implemented?
[15:20] <amell> A: Either of 18km altitude or 1000knot speed threshold can be exceeded and itll still work. If both simultaneously exceeded then itll not give valid results.
[15:21] <Geoff-G8DHE-M> "We don’t know
[15:21] <Geoff-G8DHE-M> nor have resource & means to ensure receiver perfor
[15:21] <Geoff-G8DHE-M> mance under those extreme
[15:21] <Geoff-G8DHE-M> conditions.
[15:21] <Geoff-G8DHE-M> "
[15:21] <amell> so suck it and see
[15:22] <marts> for the price it is worth the risk
[15:22] <Geoff-G8DHE-M> Its not so much the price of the unit but the price of an entire flight :(
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[15:23] <amell> it is kind of interesting at that price, but I am not sure about the LEON3 sparc-v8 and how to code for it.
[15:23] <aadamson> I have one, but not sure it's really a HAB device, guess it just depends on what you are trying to do
[15:23] <aadamson> oh, wait... I have a sparkcore
[15:23] <aadamson> my navspark hasn't shipped yet
[15:24] <marts> they will supply a custom arduino IDE, details are not yet public, but I guess the gps data will simply be available as variables within the source code...
[15:25] <marts> the company behind it is skytraq (which is experienced in gps)
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[16:05] <marts> hmm my receiver (ic-pcr100, I am not a ham guy,,,) only has a 1kHz resolution, so I will probalby have to go with a higher frequency difference
[16:05] <marts> how come the 300..600Hz maximise the transmission range?
[16:06] <eroomde> marts: its passband will probably be 3khz
[16:06] <eroomde> so it'll turn into audio anything from x to x+3khz
[16:06] <eroomde> so you just have to get the rtty signal into that passband for fldigi to work
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[16:10] <craag> The PCR100 doesn't do SSB afaict
[16:10] <craag> Nope: AM, FM, WFM
[16:10] <craag> So not suitable for RTTY
[16:11] <marts> craag: ok, the software interface offers ssb, let me check the datasheet
[16:11] <craag> marts: Reading the icomuk website: http://www.icomuk.co.uk/categoryRender.asp?categoryID=3931&productID=1202&tID=647
[16:11] <marts> yeah saw it aswell :(
[16:12] <marts> I just had it lying around from an older project and hoped it would work...
[16:12] <marts> back to the physics ;) : will will fm yield a lower range then rtty?
[16:14] <marts> *why
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[16:17] <eroomde> well, there are several ways to look at it
[16:17] <eroomde> you can show mathematically that it takes more energy per bit to get a given bit error rate
[16:17] <eroomde> but in terms of how to think about it simply, one way is that to send a given thing, fm requires more bandwidth than ssb
[16:18] <eroomde> but if you're transmitting it with the same power, that means the signal to noise ratio will be lower, because you have the same signal power, but more noise power because of having to receiver over a wider bandwidth
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[16:19] <marts> eroomde: yeah that makes sense
[16:19] <eroomde> it has advantages though, espcially if the tx and rx freqs are slightly mismatched
[16:20] <eroomde> a frequency offset in ssb sounds stupid, sometimes unintelligable for voice
[16:20] <eroomde> but in fm it just downs up as a dc offset from the receiver
[16:20] <eroomde> and a dc offset is just a component with a frequency of 0Hz, which usually gets filtered out anyway as most audio stuff has a cutoff beneath about 100Hz anyway
[16:21] <eroomde> so if you're putting a tracker on a rocket, where you might get significant doppler shift, FM might be a good thing
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[16:22] <marts> ok I will go for fm first then, can anyone recommend a reasonable priced ssb reciever should I change my mind?
[16:23] <eroomde> well, for super-cheaps, the little rtl-sdr dongles will work nicely
[16:23] <eroomde> the funcube dongle+ is a similar sort of thing but better, and more expensive
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[16:24] <eroomde> i think most people use a decent ham radio rig
[16:24] <eroomde> the yeasu ft-790R is a great rig, really sensitive, and has lost nothing with age
[16:24] <eroomde> the ft 817 is the sort of modern all-band replacement which is very popular
[16:25] <marts> ok thanks
[16:25] <eroomde> then prices can go up from there into the really nice ham rigs. you can get a big beast to put on your desk and control the world if you want
[16:25] <marts> I'm a university student so my budget is limited
[16:26] <marts> but I will take a look at your suggestions
[16:26] <eroomde> funcube dongle if you can afford it
[16:26] <eroomde> it'll make you happy
[16:26] <eroomde> rtl dongle if you can't
[16:26] <Geoff-G8DHE-M> Its very difficult to wrong with the TV dongles, they are just a £'s and will always have a use.
[16:26] <craag> uni student here happy with funcube dongle +
[16:27] <Geoff-G8DHE-M> Once you know more and understand the requirements then consider a decent rig if it interests you.
[16:27] <eroomde> we got by with an ft-790 for several years (ex student here)
[16:27] <eroomde> for our hab needs
[16:28] <marts> ok thanks everyone, afk for the moment, cu later
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[16:44] Nick change: The_Doctor -> Adran
[16:52] <aadamson> I think that kd2eat is flying a balloon today in upstate NY. aprs call is w2cxm-11
[16:52] <aadamson> it's up and functional at the moment, but I don't believe it's launched. his plans changed at the last minute and it's running on a back up aprs tracker that I had sent him just in case
[16:53] <aadamson> doesn't look like any feed to spacenear has been setup so it's only on aprs.fi at the moment
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[16:57] <amell> marts: I bought mine from here: http://www.ebay.co.uk/itm/Newsky-TV28T-dongle-DAB-FM-RTL2832U-R820T-COAX-MCX-BNC-SMA-budget-SDR-package-/111295875545?pt=UK_Computing_TV_Tuner_Video_Capture_Devices&hash=item19e9c049d9
[16:58] <amell> 15 quid for dongle, and all the adaptors, can't go wrong :)
[16:59] <Geoff-G8DHE-M> also here https://www.cosycave.co.uk/product.php?id_product=288
[17:00] <amell> yeah, actually i did buy it direct from their site. Couldn't remember the url.
[17:00] <Geoff-G8DHE-M> two for price of one deal :)
[17:01] <Geoff-G8DHE-M> but the range of adaptors is better
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[17:03] <aadamson> ah too bad, failure in NY as well today ...
[17:03] <amell> what happened?
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[17:07] <aadamson> tether failure, balloon left with out the payload :(
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[17:07] <amell> Aww
[17:09] <gonzo_nb> not the first person to have that
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[17:22] <craag> jcoxon: New over-the-horizon telemetry option? http://amsat-uk.org/2014/03/22/geo-transponders-on-eshail-2/
[17:23] <jcoxon> yeah i saw that
[17:23] <craag> When they say 'simple ground equipment', I'm not sure their definition is the same as ours :P
[17:23] <Geoff-G8DHE-M> Got a few years to wait for those facilities of course
[17:23] <daveake> ooer
[17:25] <SpeedEvil> Uplinks in the 2.45GHz band don't seem hard
[17:26] <Geoff-G8DHE-M> Will depend on power requirements remember its a linear transponder so if the Italians are around ....
[17:27] Action: SpeedEvil wishes gyrotrons were cheaper.
[17:29] <SpeedEvil> I hope ITER ends up making them cheaper and better, for use in beamed energy launchers
[17:30] <SpeedEvil> And aeroplanes
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[17:56] <jarod> Maxell: http://www.vliegeninnederland.nl/wp-content/uploads/2014/03/EH-eSUP-2014-01.pdf no balloons the next two days please :D
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[18:24] <Laurenceb> attn SpeedEvil: http://ecofriend.com/wp-content/uploads/2012/07/solar_balloon_xv464.jpg
[18:25] <SpeedEvil> neat.
[18:25] <Laurenceb> someone made the solar thermal launcher :D
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[18:26] <SpeedEvil> needs moar equal and opposite reaction
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[18:45] <UKC_WTM5> UKC_WTM5 here with the popped balloon!
[18:46] <mikestir_2E0MXS> looked a bit windy!
[18:46] <amell> Yes, looked like some of you got a walloping.
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[18:47] <free_> hello
[18:47] <fsphil> scary to watch. I know that feeling when the balloon goes awfuly near the ground
[18:47] <amell> was it a loud bang? video didn't have sound
[18:48] <amell> UKC_WTM5: when you have better weather you should try launching from Elsworth. Much closer to UKC
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[18:50] <daveake> It's not often that a HAB burst has been streamed live :/.
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[19:14] <StaticJay> Is B-41 still in flight?
[19:14] <Upu> possibly
[19:14] <Upu> we have no recievers
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[19:17] <StaticJay> Shame that it was really going the distance.
[19:18] <Upu> indeed
[19:18] <Upu> if it floats within range of a digi repeater it should reappear
[19:18] <Upu> don't write it off just yet
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[19:23] <Lunar_Lander> evening LeoBodnar
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[19:28] <saadzmirza> How do you use this?
[19:28] <Upu> like that
[19:28] <StaticJay> you just did.
[19:28] <amell> shocking
[19:28] <saadzmirza> Oops.
[19:29] <saadzmirza> Are you guys all related with High Altitude Ballooning?
[19:29] <Upu> generally thats why people are here but sometimes the conversation goes onto other technical matters
[19:29] <Lunar_Lander> yes and with optimizing making potato chips
[19:29] <saadzmirza> Okay. Haha
[19:29] <saadzmirza> Well did you hear about ITLAC 01 a few weeks ago?
[19:30] <Upu> yeah we did
[19:30] <saadzmirza> They achieved an altitude of 47.4KM using a Kaymont 2000 and a 3-6KG payload!
[19:30] <Upu> subject to confirmation
[19:30] <amell> from who?
[19:30] <Upu> where did you ascertain they used a Kaymont 2000 out of interest ?
[19:30] <saadzmirza> Interestingly, they are no longer on the arhab altitude records page...
[19:30] <saadzmirza> Hold on, im getting there
[19:31] <Upu> because they haven't released any data on the launch which is why they currently aren't on Arhab
[19:32] <saadzmirza> I was very intrigued by this, so I took the liberty to add the Project Manager, Eduardo C Guizar Sainz
[19:32] <saadzmirza> on Facebook
[19:32] <LeoBodnar> i don't believe it
[19:32] <Maxell> jarod: yeah doing HAB in the Hague might not be the best idea right now
[19:32] <Upu> I would sincerly love this record to be true but unfortunately under no configuration we have data for do 2000 (or 3000's) for that matter go to that altitude
[19:33] <saadzmirza> I talked to him, and he replied in a very condescending manner. Anyway, I coaxed him out of his secrets, I guess. Until I told him that his launch got taken down from Arhab and accused him of trickery, then he blocked me.
[19:33] <LeoBodnar> that's not the way people that have nothing to hide usually behave
[19:34] <Upu> lol
[19:34] <saadzmirza> It sounded like bullshit to me. Anyway, he said he used a Kaymont 2000 with He, and 3KG of electronics. And I was like WTF?
[19:34] <Upu> they won't tell us what they used to ascertain the altitude
[19:34] <Upu> well ok look at this :
[19:34] <saadzmirza> He said the secret was a small check valve in the neck of the balloon "to liberate the expanded He".
[19:34] <Upu> https://www.dropbox.com/s/yb2wphuxu4z2f3f/ta4000.pdf
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[19:34] <Upu> ok fair enough that actually is viable
[19:34] <LeoBodnar> none of the videgrabs show required ascent rate to reach this altitude in the time they claim it too
[19:34] <LeoBodnar> k
[19:34] <saadzmirza> Yes, I am using the TA4000 for my launch in a few weeks
[19:34] <Upu> though I'm still dubious
[19:35] <UKC_WTM5> Sorry was having some pizza to make myself feel better haha
[19:35] <StaticJay> Crystal ball I think was used to ascertain the altitude on that one.
[19:35] <Upu> its just too high
[19:35] <UKC_WTM5> Couldn't even hear the band
[19:35] <UKC_WTM5> bang*
[19:35] <Upu> even with a valve
[19:35] <saadzmirza> Still, even after the valve, it seems a bit fake and murky because of his strong defensiveness
[19:35] <Upu> Well
[19:36] <Upu> the community , thats us lot and our American counterparts are withholding the record until such time as we get clarificaiton
[19:36] <Upu> its nothing person its just not fair to others trying
[19:36] Nick change: slobber -> sobber
[19:36] <Upu> personal
[19:36] Nick change: sobber -> slubber
[19:37] <LeoBodnar> well if valve slowed the ascent then initial one should have been like 20m/s
[19:37] <LeoBodnar> this makes no sense
[19:37] <daveake> The valve won't get you higher than would be possible using the same amount of gas (after the release) from launch
[19:37] <LeoBodnar> avreage ascent rate should ~11m/s
[19:37] <daveake> No it's BS
[19:38] <saadzmirza> If you'd like, you can contact him on Facebook
[19:38] <daveake> I've seen what happens when people ask him genuine questions
[19:38] <saadzmirza> HIS ASENT RATE WAS 11M/S WHY?
[19:38] <daveake> It doesn't go well
[19:38] <Upu> its ok saadzmirza I've already had a lengthy mail conversation with him
[19:39] <Upu> when he's ready to release his data it will be reconsidered
[19:39] <saadzmirza> Oh. It does sound like BS. With such a heavy payload, smaller balloon (not Hwoyee), and He, and high ascent rate.
[19:39] <Upu> but until then being blunt we don't believe it (though the valve is a viable idea)
[19:39] <amell> leobodnar: surely B41 should be on the world records page for distance travelled?
[19:39] <daveake> If 47km was possible with standard off-the-shelf latex balloons (which it might be, but I doubt it) it certainly wouldn't with that payload weight and absolutely not with that ascent rate
[19:40] <daveake> plus he/they didn't have enough gas there to get that rate
[19:40] <saadzmirza> Anyway guys, I'm the project manager of Marathon to the Sky. We're hoping to send a 300g payload to at least 42195m, the length of a marathon.
[19:40] <saadzmirza> https://www.facebook.com/marathontothesky
[19:41] <Upu> you see this is exactly why I kicked up a fuss over the Mexican record
[19:41] <Lunar_Lander> Upu, short question on the Kaymont paper you linked to
[19:41] <saadzmirza> We are planning on using a Rtrak HAB, TA4000, H2, and possibly a similar valve setup
[19:41] <daveake> probably possible. Not sure that any of our flights to that altitude have had that much weight
[19:41] <Lunar_Lander> does that mean that they make a KCI-4000?
[19:41] <Upu> because if its untrue its unfair to others taking part
[19:41] <Upu> every single flight in the top 10 has been < 100g and Hydrogen
[19:41] <Upu> Lunar_Lander yes they do its £1000 do you want one ?
[19:41] <saadzmirza> Yeah, I realize that.
[19:42] <Lunar_Lander> oh
[19:42] Action: Lunar_Lander is amazed
[19:42] <Lunar_Lander> no, not at the moment, thanks :)
[19:42] <amell> I guess this means no smoking at the launch site, right?
[19:42] <Upu> a 1600g Hwoyee will beat it for altitude as well on a good day
[19:42] <daveake> Buy me one, Lunar_Lander
[19:42] <Lunar_Lander> xD
[19:42] <saadzmirza> Is there a reason these 1600g Hwoyees are all the top 10s?
[19:42] <daveake> I'll probably burst it first but I'll try ...
[19:42] <Upu> yeah saadzmirza their quality control is crap :)
[19:42] <daveake> saadzmirza, They seem to vary a lot
[19:42] <daveake> Which means they go high if you get a good one
[19:43] <saadzmirza> Oh. Their representative was also a bit of a douche.
[19:43] <Upu> it might just be a good balance of lift + strength of the latex
[19:43] <daveake> Also the price is OK whereas the 3000 is expensive
[19:43] <saadzmirza> I would be VERY disappointed if I paid $900 for the TA4000 and got a lemon.
[19:43] <daveake> and the 4000 very expensive
[19:43] <Upu> you will note nothing has entered the top 10 for a while
[19:43] <saadzmirza> Why's that?
[19:43] <Upu> they haven't been going as high
[19:43] <daveake> Don't thing many have tried either
[19:43] <saadzmirza> Well, we're trying :P
[19:43] <Upu> TA4000 will probably perform as stated
[19:44] <Upu> go for a slightly lower ascent rate anyway
[19:44] <Upu> but shit thats alot of money :)
[19:44] <saadzmirza> Yeah. I hope so. We're also planning on a 3.8-4m/s ascnet
[19:44] <saadzmirza> We have tons of community donations.
[19:44] <Lunar_Lander> the world record of JAXA was made with a very small payload (10 kg) on their new zero-pressure balloon
[19:44] <Upu> 10kg is small Lunar ?
[19:44] <Lunar_Lander> so to get the amateur record, I assume that would be a hydrogen flight with a pico type payload
[19:45] <Lunar_Lander> for a plastic balloon of NASA class I mean
[19:45] <saadzmirza> Yeah the 3 micrometer film
[19:45] <saadzmirza> That's a BIT out of amateur budgets. :P
[19:45] <Upu> Wish you the best of luck saadzmirza
[19:45] <saadzmirza> Thanks
[19:45] <Upu> publish your data
[19:45] <Lunar_Lander> there 10 kg is small compared to up to several tons usually carried
[19:46] <saadzmirza> Absolutely. I believe in honesty and transparency
[19:46] <Upu> because I for one will be kicking up a huge stink if ITALC claims the balloon contest with no data
[19:46] <saadzmirza> GSBC?
[19:46] <Upu> yeah
[19:46] <saadzmirza> Yeah, the organizers need to make sure they publish data
[19:46] <Upu> Want my theory ?
[19:46] <Lunar_Lander> doesn't the ARHAB record list require GPS data for a claim?
[19:46] <Upu> dry ice
[19:46] <saadzmirza> ?
[19:46] <saadzmirza> What about dry ice?
[19:47] <Upu> hang 1kg of dry ice in an insulated but open container
[19:47] <Upu> calculate that without it the ascent rate is 6m/s
[19:47] <daveake> I don't think I'd believe any claim from ITALC given the response to honest questioning
[19:47] <Upu> it will slow the ascent
[19:47] <Upu> as it sublimes off the ascent rate will slowly increase
[19:47] <Upu> gives the latex time to stretch
[19:47] <daveake> or quickly :/
[19:48] <Upu> yeah insulate the container its in
[19:48] <saadzmirza> Oh that makes sense. Ever tried it, or just a theory?
[19:48] <Upu> when we tried it we put it in a pop bottle
[19:48] <Upu> and it just sublimed off in about 30 mins
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[19:48] <Upu> it did slow the ascent rate though
[19:48] <daveake> I had to top that up a lot before launch :/
[19:48] <Upu> but went too quickly
[19:48] <daveake> worth another try
[19:48] <Upu> Dan Bowen
[19:48] <saadzmirza> Well thanks for the help guys. I gotta go now, should be on later eventually
[19:48] <Upu> who knows a thing or two about balloons suggested it
[19:48] <Upu> yeah we need to try that again
[19:49] <Upu> no problems
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[19:49] <Lunar_Lander> evening chrisstubbs
[19:49] <chrisstubbs> evening
[19:49] <Lunar_Lander> how are you today?
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[20:00] <amell> Quickest way to get a HAM license in UK? I checked out local club. they are all 80+
[20:01] <Upu> you'll be welcomed with open arms
[20:01] <Upu> but you need to go to a club
[20:01] <amell> pass. I just want to get a call sign...
[20:01] <Upu> go to go to an authorised center
[20:01] <amell> I didn't want to go to darby and joan club...
[20:01] <daveake> ha
[20:01] <Upu> UKHAS 2014 conference we'll be offering the foundation exam again if craag and his merry men are up for it
[20:02] <daveake> I'm, ahem, middle aged and I was easily the youngest at "my" club
[20:02] <amell> daveake: exactly.
[20:02] <daveake> oldest was in his 90's
[20:03] <daveake> I had to keep an eye on him during my HAB talk to make sure he didn't fall asleep. Or worse.
[20:03] <Upu> lol
[20:03] <Lunar_Lander> at Ham Radio at Lake Constance there were a lot of people around my age as well
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[20:04] <Lunar_Lander> 20 back then
[20:04] <Upu> if you ask nicely they may let you do it at Southampton
[20:04] <Upu> speak to craag
[20:04] <Upu> but go get the Foundation Now book
[20:04] <Upu> win
[20:04] <Upu> I love it when zeusbot gets it right, its like pow headshot
[20:05] <Lunar_Lander> :)
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[20:07] <amell> Do you have to actually speak/transmit voice for the foundation license?
[20:07] <amell> I have no interest in audio. just data.
[20:08] <Lunar_Lander> I don't think you have to ever speak a word on the air to hold the license
[20:08] <Lunar_Lander> and I think the exam is also only on paper
[20:10] <LeoBodnar> amell: yes you need to do it as part of practical session
[20:11] <LeoBodnar> unfortunately it has to be in the club due to licensing rules
[20:11] <Upu> yes amell
[20:11] <daveake> It's the only time I've ever spoken on amateur frequencies :)
[20:11] <LeoBodnar> HAM convention offers all three levels at once
[20:11] <LeoBodnar> *in two days
[20:11] <Upu> though thats going to change
[20:12] <LeoBodnar> daveake: i challange you to speak to me over the wireless
[20:12] <LeoBodnar> but i need to get some ham gear first
[20:12] <daveake> erm, why? :)
[20:12] <Upu> lol
[20:13] <amell> cos he wants to hear your dulcet tones
[20:13] <LeoBodnar> for charity
[20:13] <LeoBodnar> we can collect some massive £££
[20:13] <LeoBodnar> and donate
[20:13] <daveake> do you have some embarassing health issue you're keen to discuss?
[20:13] <Lunar_Lander> ah sorry
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[20:13] <Lunar_Lander> I didn't know that there is a pratical test in the UK
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[20:42] <amell> any theories as to current location of B41?
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[20:44] <Upu> Probably Iran on its way to China
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[20:50] <craag> amell: How close are you to southampton?
[20:51] <amell> I pop down that way every now and again to go sailing - 2.5 hours.
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[20:52] <Upu> plan detected
[20:52] <craag> Ok.. well I'll see if we've got any foundation stuff going on at the moment and let you know
[20:52] <Upu> wirp wirp
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[20:53] <craag> failing that I'm happy to do a course at the ukhas conf again.
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[20:53] <amell> kewl. I would need to revise first though :)
[20:53] <amell> thanks
[20:53] <Upu> I was going to ask it was quite popular last year
[20:53] <craag> Hopefully I'll be a little more conscious this year
[20:53] <Upu> lol
[20:53] <daveake> I can recommend craag's services as a means of doing the exams without having to meet the silver-heaired brigade at a club :)
[20:53] <Upu> no more than six people though ?
[20:54] <craag> Upu: Yeah I think so
[20:54] <amell> keen to avoid the zimmer frames
[20:54] <craag> amell: Foundation is quite involved to do, lots of practical.
[20:55] <craag> The exam at the end is easy :)
[20:55] Action: LazyLeopard 's beard's a bit grey these days...
[20:55] <craag> brb
[20:55] <Upu> you may get roped in LazyLeopard :)
[20:55] <amell> practical is compulsory? I only want it to tx data, aprs and the ilk.
[20:55] <StaticJay> Silver haired hams have all sorts of concealed antenas in those zimmers.
[20:55] <Upu> its compulsary amell
[20:55] <Upu> morse appreciation
[20:55] <Upu> as well :)
[20:55] <LazyLeopard> Heh.
[20:55] <daveake> which is easy
[20:55] <amell> now this is a wind up
[20:55] <Upu> it is
[20:55] <Upu> serious
[20:56] <amell> morse was dropped?
[20:56] <Upu> quick qso with Mike mfa298_ next door
[20:56] <daveake> If you can listen to slow morse and write down dits and dahs, you can do it
[20:56] <Upu> morse appreciation
[20:56] <Upu> proof you can solder (clue bring a payload)
[20:56] <Upu> what else is there ?
[20:56] <daveake> Which means "I appreciate what it sounds like and vow never to actually use it"
[20:56] <Upu> oh tune a radio
[20:57] <Upu> on lsb or usb
[20:57] <Upu> clue : turn the knob
[20:57] <daveake> Don't remember doing that
[20:57] <LazyLeopard> Soldering's not til Intermediate,...
[20:57] <Upu> isn't it ?
[20:57] <daveake> Did have to connect a radio to aerial etc
[20:57] <amell> christ.
[20:57] <Upu> lol
[20:57] <Upu> and finally
[20:57] <LazyLeopard> ;)
[20:57] <daveake> yeah inter you have to make something
[20:57] <daveake> and wire a plug
[20:57] <Upu> you need to grow a beard exhibit dubious personal hygine
[20:58] <daveake> 2 - mains and coax
[20:58] <daveake> advanced is just the exam
[20:58] <amell> guys, this does not excite.
[20:58] <daveake> meh
[20:58] <daveake> it's easier than you think
[20:59] <LazyLeopard> If you really draw it out you can make Foundation training take two days. Anyone bright enough to build a HAB payload should manage it in a few hours...
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[21:00] <LeoBodnar> i was the only person apart from the club chairman who actually knew Morse when i did my Morse appreciation
[21:00] <daveake> I actually did do the foundation 2-day course at my local club
[21:00] <LeoBodnar> the examiner who did the Morse appreciation did not know Morse
[21:00] <daveake> hah
[21:00] <amell> did you scrub yourself clean each evening?
[21:00] <daveake> ofc
[21:00] <daveake> for inter and adv I just did the exams having read the books
[21:01] Action: LazyLeopard has been trying to learn Morse for a few years...
[21:01] <amell> . . . - - - . . .
[21:01] <craag> LeoBodnar: I examine morse appreciation - don't know it :)
[21:01] <daveake> :)
[21:01] <LeoBodnar> lol
[21:02] <daveake> I appreciate Morse
[21:02] <LeoBodnar> heh
[21:02] <daveake> John Thaw was really good in that
[21:02] <craag> Got shown up at the conf by Steve(?) who knew it far better than I did
[21:02] <amell> -- --- .-. ... . .. ... ... - ..- .--. .. -..
[21:02] <craag> And I was meant to be examining him
[21:02] <daveake> :)
[21:02] <craag> Had to ask him to slow down many times...
[21:02] <daveake> haha
[21:02] <LeoBodnar> lol
[21:03] <craag> amell: You just have to listen to it, copy it down, and look it up on a cribsheet in your own time
[21:04] <daveake> Handy jint amell: Tap the morse so fast that craag can't tell if you got it right or not
[21:04] <daveake> hint
[21:04] <craag> :|
[21:04] <Upu> lol
[21:05] <craag> Honestly I don't see the point in it
[21:05] <daveake> or the dashes
[21:05] <craag> I think it was just to quiet the outcry when it was suggested to be dropped completely
[21:05] <Lunar_Lander> xD
[21:05] <daveake> Very likely
[21:06] <craag> As many people use PSK or even RTTY now
[21:06] <craag> but nobody makes you learn baudot
[21:06] <daveake> :)
[21:07] <daveake> Though it's easy to tell from listening to rtty if your tracker has a lock or not
[21:07] <daveake> All those zeroes stand out
[21:07] <craag> yes
[21:09] <amell> hah. I used to listen to telebit trailblazers shifting uucp at 300baud
[21:09] <LazyLeopard> TBH the "Morse appreciation" practical is worse than a waste of time the way it's done at present.
[21:10] <craag> Yes
[21:10] <craag> There is a strong movement to oust it
[21:10] <craag> But keeps getting rejected by the old folks home that is the RSGB HQ
[21:10] <craag> (strong even within the 'education committee' and the like)
[21:11] <LazyLeopard> ...or re-design it, but you'd have to have a Morse-fluent instructor to do it.
[21:12] <mikestir_2E0MXS> it would be far better if it were an appreciation of various digimodes so you can identify them when you hear them
[21:12] <amell> 300 baud out of a hayes smart modem and 1200 baud were quite distinct.
[21:14] <Maxell> what do you guys think of my new chase car? http://www.blikopnoordwijk.nl/media/k2/galleries/4416/nsstop%202014%20NWK%20190314IMG_0247_tn.jpg
[21:14] <LazyLeopard> Knowing what a few digimodes sound like would be easy. Throw some Morse in as well; it's pretty much the original digimode anyway.
[21:15] <amell> This is my chase car: http://www.kaboodle.com/hi/img/2/0/0/df/5/AAAAAsgQkFIAAAAAAN9faQ.jpg?v=1205636050000
[21:15] Nick change: mikestir_2E0MXS -> mikestir
[21:15] <Maxell> nice amell
[21:15] <LeoBodnar> did you mean chase cart? i can see three
[21:16] <Maxell> LeoBodnar: thats the diesel generator to power the payloads heating system
[21:17] <Maxell> we run twin-lead to the balloon
[21:17] <mikestir> general ISM band question: For the channelised subbands, does the duty cycle limit only apply per-channel? i.e. if you frequency hop across the 10 25 kHz channels between 869.4 and 869.65, can you use 500 mW with an effective 100% d.c.?
[21:18] <Maxell> mikestir: for us dutchies I was not able to find it in the Agentschap Telecom's paper about ISM usage.
[21:18] <Maxell> They only tell you it's the duty cycle in one hour.
[21:18] <mikestir> that's what IR2030 says as well
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[21:24] <mikestir> I found the answer in EN300220 - for frequency hopping systems the duty cycle applies to the total transmit time
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[21:41] <UKC_WTM5> Pic of balloon in the wind earlier today: https://fbcdn-sphotos-h-a.akamaihd.net/hphotos-ak-prn2/t31.0-8/p720x720/1941598_10202861758358331_1638379537_o.jpg
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[21:45] <daveake> Video of the "launch" https://dl.dropboxusercontent.com/u/368443/HAB/stream2.mp4
[21:48] <Maxell> mikestir: and having more then one transmitter? ;)
[21:48] <mikestir> Maxell: yeah I assume if they are on separate antennas then it's fair game
[21:48] <daveake> I don't see why not
[21:49] <mikestir> but then that isn't exactly scalable
[21:50] <Geoff-G8DHE> daveake, have you tried that video ?
[21:50] <g0pai_ian> Says the file is corrupt so can't play . . . !
[21:50] <daveake> Just a sec
[21:51] <mikestir> works for me
[21:51] <Lunar_Lander> yea same ehre
[21:51] <Lunar_Lander> here
[21:51] <daveake> I've played it but not from that url
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[21:52] <mikestir> it didn't work in the browser, but I downloaded it with wget and that's fine
[21:52] <daveake> yeah I'd suggest that to anyone having trouble
[21:52] <g0pai_ian> Thanks Mike, I'll try that.
[21:53] <ibanezmatt13> Use VLC media player. It worked for me just now
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[21:55] <daveake> For next launch I should have pan/tilt servos on the camera :)
[21:55] <malgar> daveake: nice idea
[21:55] <arko> https://www.youtube.com/watch?v=aFl-9W8x-uI
[21:56] <arko> gets good at 1minute
[21:56] <Maxell> wgetting stream2.mp4 for reasons too
[21:57] <Maxell> arko: WINDOWS XP!!11
[21:57] <UKC_WTM5> daveake: thanks for the vid, downloading now! Once again, thank you so much for helping us! We really appreciated it
[21:58] <daveake> yeah shame about the result
[21:58] <daveake> very challenging conditions though
[21:58] <Maxell> arko: however, that smug music is making that seal move like a mad man
[21:58] <daveake> fsphil recorded it so thanks to him :)
[21:59] <arko> haha im on mute
[21:59] <UKC_WTM5> fsphil: thanks!! daveake, fsphil, mind if i upload it to youtube?
[21:59] <UKC_WTM5> in a private vid
[21:59] <fsphil> np :)
[21:59] <daveake> fine by me
[22:00] <daveake> one thing. if you find out who the kiddies were in the batc chatroom, take away their internet privileges for a month :)
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[22:01] <UKC_WTM5> will do, im not sure what went on in the live chat as i cant seem to view the history of it
[22:01] <daveake> no, it got deleted
[22:02] <Maxell> it blew!
[22:03] <UKC_WTM5> Maxell, dutch as well?
[22:05] Nick change: BitEvil_ -> SpeedEvil
[22:05] Nick change: SpeedEvil -> BitEvil_
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[22:05] Nick change: BitEvil_ -> SpeedEvil
[22:06] <Maxell> UKC_WTM5: yep
[22:07] <UKC_WTM5> Nice to see some other Dutch people here
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[22:07] <Maxell> other?
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[22:07] <Maxell> UKC_WTM5: You are also Dutch? :)
[22:08] <UKC_WTM5> I am, I study in the UK though! I was at the "launch" in Ross-on-Wye today
[22:08] <Maxell> UKC_WTM5: bertrik and costyn are also dutch and involved into balloons.
[22:08] <UKC_WTM5> in the video stream in which the balloon popped
[22:08] <UKC_WTM5> okay, good to know
[22:08] <Maxell> And lurk around on IRC.
[22:08] <UKC_WTM5> Are our laws strict on this kind of stuff?
[22:09] Action: Maxell also has contacts into the HAM radio world by being an HAM.
[22:09] <UKC_WTM5> laws/regulations*(
[22:09] <UKC_WTM5> Just checked the HAM website
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[22:11] <bertrik> AFAIK, this is the applicable article for the netherlands http://wetten.overheid.nl/BWBR0007094/geldigheidsdatum_23-03-2014#Artikel3
[22:11] <Maxell> UKC_WTM5: it's quite doable. http://wetten.overheid.nl/BWBR0007094/geldigheidsdatum_23-03-2014#Artikel3 if I rember correctly
[22:12] <UKC_WTM5> bertrik, Maxell: Thanks, might do one over the summer holidays if I get the time..
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[22:14] <Maxell> UKC_WTM5: we should get in contact if you have any serious plans :)
[22:15] <Maxell> UKC_WTM5: bertrik and I are hanging around at RevSpace hackerspace Den Haag.
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[22:16] <UKC_WTM5> Maxell: Will check in here when I have more concrete plans, I stay close to Apeldoorn
[22:17] <Maxell> ah!
[22:19] <Maxell> UKC_WTM5: PE2G could help chase I presume, hes near Almelo.
[22:20] <Maxell> He does KMNI radiosonde chasing http://pe2g.hostfree.nl/
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[22:24] <UKC_WTM5> Oh wow, hes done quite a few
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[22:30] <Laurenceb> LeoBodnar: whats APDG02 on APRS?
[22:30] <Laurenceb> i see it appearing all over the place
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[22:39] <Lunar_Lander> daveake, just watched the video
[22:39] <Lunar_Lander> sad that the balloon burst :(
[22:39] <Laurenceb> LeoBodnar: whats APDG02 on APRS?
[22:39] <Laurenceb> i see it appearing all over the place
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[22:40] <LeoBodnar> it's a destination of the packet
[22:40] <LeoBodnar> you can stick pretty much anything in there
[22:40] <Laurenceb> ah
[22:41] <LeoBodnar> it usually encodes the equipment used to generate the packet, etc
[22:41] <LeoBodnar> can be ALRNCE
[22:42] <LeoBodnar> because destination is irrelevant - it is already "in the system" by using APRS frequency
[22:43] <LeoBodnar> but if you are sending a message to a station that would be destination address for intended recipient
[22:43] <Laurenceb> ok
[22:44] <Laurenceb> looks like KB3TEM will be next station for B-41 then
[22:44] <Laurenceb> pity its going so far north
[22:44] <LeoBodnar> so for position reports, telemetry, bulletins it is non-critical
[22:45] <LeoBodnar> it hasn't been heard for 2 months
[22:45] <Laurenceb> doh
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[22:47] <amell> Kyrgyzstan for KB3TEM - any estimate of when it might reach?
[22:48] <Laurenceb> theres BH8DVB-10
[22:49] <LeoBodnar> it's a car running Android app on the phone and reporting directly via TCPIP
[22:50] <Laurenceb> heh
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[22:51] <amell> forecast from 7pm yesterday had B41 just over the afghanistan border around this time
[22:51] <g0pai_ian> mikestir: wget pulled the video down OK and it played OK in SMplayer. Bad luck chaps - marginal conditions I guess. I keep asking my group how many times are they prepared to go home from the launch area saying, the conditions will be right tommorrow?
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[22:52] <Maxell> Laurenceb: APDG02 could be short for the software used to send aprs data
[22:52] <Maxell> thats what most pieces of software use it for
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[22:52] <Maxell> but yeah, if you are doing an message to another APRS user you would use it for his/her callsign
[22:53] <amell> So, in theory, B41 should be heard from in Kyrgyzstan tomorrow mid morning to noon if its still afloat.
[22:53] <LeoBodnar> http://www.aprs.org/tocalls.txt
[22:54] <amell> and thats assuming a lot of variables.
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[22:55] <Maxell> amell: why havnt we heard from the other M0XERs :(
[22:55] <LeoBodnar> i think i am mistaken. messages place destination address in the packet body?
[22:55] <LeoBodnar> so even for messages this field is irrelevant
[22:55] <Maxell> why is it there then
[22:55] <Maxell> damnit aprs
[22:55] <Maxell> once again
[22:55] <LeoBodnar> heh
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[22:56] <Laurenceb> im worried it could be popped by lee waves off the mountains
[22:57] <Laurenceb> guess it depends how strong the up/down drafts are
[22:57] <Laurenceb> but theres some serious terrian
[22:57] <LeoBodnar> yeah
[22:57] <LeoBodnar> at least it will not crash into Mt Everest
[22:58] <Laurenceb> haha
[22:58] <Lunar_Lander> xD!
[22:59] <Maxell> Also try sorting by callsign. APRS.fi goofed it up http://aprs.fi/info/?call=M0XER*
[22:59] <amell> will pass not far from Tora Bora
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[23:56] Nick change: gurgalof_ -> gurgalof
[00:00] --- Mon Mar 24 2014