[00:03] edmoore (n=edmoore@pomegranate.chu.cam.ac.uk) joined #highaltitude. [00:06] natrium42 (n=natrium4@CPE000625d867e2-CM0014045885be.cpe.net.cable.rogers.com) left irc: Read error: 110 (Connection timed out) [00:06] edmoore!!!11one [00:07] natrium, i've emailed a new copy [00:07] ok [00:24] does it look okay? [00:24] it's better now [00:25] so you are going with single layer? [00:25] yeah [00:25] its all i need [00:26] yes, although i would avoid sharp corners [00:26] in the traces [00:26] oh right [00:26] 90 is bad? [00:26] do you want a ground fill? [00:26] yeah [00:27] ummm wasn't planning but if its recommended [00:29] it's up to you [00:29] btw, one airwire remains [00:29] it's fine, right? [00:29] you can connect it with a jumper wire [00:29] yeah [00:30] right i'm off [00:30] thanks natrium for the help [00:30] k [00:30] night [00:30] i will email you the files [00:30] nite [00:30] jcoxon (n=jcoxon@host86-154-32-159.range86-154.btcentralplus.com) left irc: "Leaving" [01:09] edmoore (n=edmoore@pomegranate.chu.cam.ac.uk) left irc: [01:26] hallam (i=12e00169@gateway/web/ajax/mibbit.com/x-ed246d578a2576cb) joined #highaltitude. [01:40] hallam (i=12e00169@gateway/web/ajax/mibbit.com/x-ed246d578a2576cb) left irc: "http://www.mibbit.com ajax IRC Client" [02:46] hallam (i=12d6017f@gateway/web/ajax/mibbit.com/x-b8c09ad55a86ceda) joined #highaltitude. [02:49] hallam, how is USA so far? [02:50] do you feel the freedom? :) [02:56] natrium: working on an H-1B visa right now... very exciting [02:57] have to head back across the pond on Monday night though [02:57] oh [02:57] is that a work visa? [02:57] how are things with you? I guess the channel is pretty dead this time of night over here [02:57] yeah [02:57] and by "working on" I mean "working on getting" [02:58] i think i need to design a custom plastic case for my NDS GPS adapter i am working on [02:58] never done plastic molding before [02:58] have you done any CAD design? [02:59] hallam (i=12d6017f@gateway/web/ajax/mibbit.com/x-b8c09ad55a86ceda) left irc: "http://www.mibbit.com ajax IRC Client" [03:00] ... [03:11] hallam (i=12d60102@gateway/web/ajax/mibbit.com/x-f4dec82b9d66cac3) joined #highaltitude. [03:50] hallam (i=12d60102@gateway/web/ajax/mibbit.com/x-f4dec82b9d66cac3) left irc: "http://www.mibbit.com ajax IRC Client" [04:12] hallam (i=12d6017f@gateway/web/ajax/mibbit.com/x-3adfa4b27ecb3a6e) joined #highaltitude. [06:47] Simon-MPFH (n=simon@phantom.mpfh.co.uk) joined #highaltitude. [07:22] jcoxon (n=jcoxon@host86-154-32-159.range86-154.btcentralplus.com) joined #highaltitude. [07:28] morning all [07:28] is anyone planning to launch this weekend? [07:57] ping natrium [07:57] yo [07:57] nah, i won't get done in time for this weekend [07:58] i'm off back to parents and was wondering if i need to take my radio [07:59] i've rerouted the wires to have less sharp angles on the board [08:01] does that really make much difference? [08:02] no idea [08:02] natrium suggested it - it looks better :-) [08:02] looks prettier, anyway :) I guess those electrons don't like to go round corners [08:02] oh boy oh boy I might have a job [08:02] hehe [08:03] Action: hallam needs to stop counting chickens [08:03] natrium, do you have a pcb you need submitting? [08:03] jcoxon, btw, there is a miter tool [08:04] do you have spare room? [08:04] yeah [08:05] the standard boards at 6.3" by 3.9" [08:05] Boo [08:05] and my board is 2.8 by 2.8 [08:05] Hi james sorry about last night [08:05] hey rjharrison np [08:05] Lack of sleep caught up with me [08:05] you launching this weekend? [08:05] If it's viable yes [08:05] hmmm what day are you considering? [08:06] If you get 5 and could suggest an appropriate time frame that would be great [08:06] The w/e is in essence free [08:06] jcoxon, hmm, i think i will try those guys --> https://www.barebonespcb.com/!BB1.asp [08:06] thanks for the offer though [08:07] i think i need 2 layers [08:07] natrium, no worries [08:07] hehe I just got a pm from the zeusbot [08:07] i should be able to get 2 boards on to their dimensions [08:07] great [08:08] rjharrison, okay monday weather wise looks best [08:08] sunday could be reasonable [08:08] Sunday looks sunny [08:08] what are the jets like [08:08] i'd avoid saturday [08:09] and today is rubbish [08:09] those are teh jets [08:09] Ok do we need to wait to gets sundays [08:10] natrium, do you reckon i've done enough checking on the pcb? [08:10] rjharrison, just running some sims [08:11] jcoxon, looks good, yes [08:11] okay cool [08:13] rjharrison, okay with CUSF Landing Prediction sunday morning is good [08:14] but by the late afternoon is sea bound [08:14] Ok 7am launch [08:14] let me run it through wyoming [08:14] and all of monday is fine [08:14] Great can you send me the kml some how [08:15] I'll talk with steve to get his bit together [08:16] yeah wyoming says its fine [08:19] okay sent [08:19] i'll be on the suffolk coast (where i am for easter) - will take up my laptop and radio [08:19] and track from there [08:22] Great [08:23] I'm just going to mow the lawn and put up my HF antenna [08:23] Will be up for testing later if you are in the mood JC we must be able to get accross the uk [08:24] yeah i am around this morning [08:24] I'm getting another set of poles and rope [08:24] and then i'm going to drive up to suffolk [08:24] Well it may take me till lunch time. But we can test when ever [08:24] Ate you up hight in suffolk? [08:25] high in suffolk?!?! its very flat :-p [08:27] natrium: barebones are good folks [08:27] they're the same people as 4pcb.com [08:27] they send you food with your order [08:28] cool [08:28] i have been meaning to try them [08:28] Right that looks ok [08:28] Might be a fast ride [08:28] I think i got a free hat out of them too [08:28] Heading out in a good direction towards Norwich [08:29] rjharrison: is this your flight? [08:29] Was that from the CUSF predictor [08:29] as the day progresses it'll swing south towards ipswitch [08:29] ipswich* [08:29] OK cool [08:29] ah ipswich. Such a classic landing site. [08:29] hallam, planning to make a small PCB for this DC/DC converter chip --> http://www.maxim-ic.com/quick_view2.cfm/qv_pk/2456 [08:29] Right off to get the petrol to mow the grass [08:29] TTFN [08:30] Will be chatting later [08:30] cool [08:30] it doesn't waste supply current when under light load unlike my texas DC/DC converter [08:30] texas instruments, that is [08:31] Action: hallam needs to start learning about rather bigger DC/DC converters [08:31] ~100kW [08:31] whoa [08:31] are you planning to work on your fusor again? [08:31] nope [08:31] it's for power transmission [08:32] natrium, what should i say about hte silkscreen again [08:32] is switching converter possible for this power? [08:33] or need a transformer? [08:33] jcoxon, just tell them to ignore any silkscreen errors [08:34] they are't going to get upset? [08:34] usually there are min width requirements for silkscreen too [08:34] well, unless you want to fix it? [08:34] oh they suggest a script [08:34] might work [08:34] natrium: it'll use some kind of transformer, but a high frequency one - like in a PC power supply, but bigger [08:35] and it has to be super lightweight and run for 10 years. hm. [08:35] i never got eagle to work with proportional fonts [08:35] yeah leave it on vectors [08:35] even silkscreen seems to require vector fonts, or it will auto-transform it to vector on gerber export [08:35] eagle works with proportional fonts okay, but the gerbers it outputs don't [08:35] hallam, what's stupid is that the eagle default components use proportional :/ [08:35] if you want fancy graphics you have to import them with that ridiculous script [08:36] yeah tell me about it [08:36] okay that made a few changes [08:36] eagle has such idiosyncrasies [08:36] jcoxon, does that script change them to vector too? [08:37] There's an option in some settings box that makes them vector by default [08:38] need to find it then :) [08:39] just about to send... [08:39] i ended up modifying the default libraries a bit (bad idea probably...) [08:39] hmmmm i think they are still proportional [08:39] but its what they recommended so i don't care [08:40] you can check the gerbers at freedfm.com (also the same people as barebones) [08:40] right sent [08:41] jcoxon, to olimex? [08:41] yeah [08:41] excellent :) [08:41] hallam, olimex accepts eagle format [08:41] oh, that is convenient [08:42] maybe proportional is okay then, if they produce the photo tools direct from eagle [08:42] no they convert to gerber [08:42] yeah, hmm [08:42] if they through a fit i'll fix it [08:42] they can get kind of angry [08:42] i followed their instructions [08:44] could you use a programable oscilator to make a multiband radio? [08:44] Action: jcoxon is on sparkfun [08:44] that's what edmoore plans to do [08:44] which osc were you thinking of? [08:45] oh i wasn't [08:45] it was more out of interest [08:45] had the DS1077 page up [08:45] there are some nicer chips that go to higher freq and have programmable phase, so you can do PSK [08:46] but the principle should work [08:46] I read one page by a ham who'd built one [08:46] it's 3:45am though, natrium and I should each go to bed [08:46] haha [08:46] thats not dirty at all [08:46] hence the "each" [08:47] :-) [08:47] g'night! [08:47] so potentially a flight at 7am sunday [08:47] hallam, yes, good idea [08:47] night hallam [08:47] hallam (i=12d6017f@gateway/web/ajax/mibbit.com/x-3adfa4b27ecb3a6e) left irc: "http://www.mibbit.com ajax IRC Client" [08:47] g'nite [08:50] night [09:54] edmoore (n=edmoore@pomegranate.chu.cam.ac.uk) joined #highaltitude. [09:58] morning edmoore [10:02] icez (n=icez@unaffiliated/icez) left irc: Remote closed the connection [10:06] jcoxon (n=jcoxon@host86-154-32-159.range86-154.btcentralplus.com) left irc: Read error: 104 (Connection reset by peer) [10:07] jcoxon (n=jcoxon@host86-154-32-159.range86-154.btcentralplus.com) joined #highaltitude. [10:07] #highaltitude: mode change '+o jcoxon' by ChanServ!ChanServ@services. [10:08] mornign jcoxon [10:08] about to dash home for the weekend [10:08] Topic changed on #highaltitude by jcoxon!n=jcoxon@host86-154-32-159.range86-154.btcentralplus.com: Welcome to #highaltitude - discuss anything to do with high altitude projects (balloons, gliders, etc) www.ukhas.org.uk, wiki.ukhas.org.uk . Nova 11 Flight Sun 12/04/09 07:00GMT, Track: http://www.pegasushabproject.org.uk/track/ More info: http://wiki.ukhas.org.uk/current_launch_details [10:09] Topic changed on #highaltitude by jcoxon!n=jcoxon@host86-154-32-159.range86-154.btcentralplus.com: Welcome to #highaltitude - discuss anything to do with high altitude projects (balloons, gliders, etc) www.ukhas.org.uk, wiki.ukhas.org.uk . Icarus 3 Flight Sunday 12/04/09 07:00GMT, Track: http://www.pegasushabproject.org.uk/track/ More info: http://wiki.ukhas.org.uk/current_launch_details [10:09] oh cool [10:09] i'm debating whether to leave now to go home [10:09] was planning to do some work this morning but thats really not happening [10:13] jcoxon: poets day [10:15] ok bbl [10:15] edmoore (n=edmoore@pomegranate.chu.cam.ac.uk) left irc: [10:18] gordonjcp, :) [10:40] jcoxon (n=jcoxon@host86-154-32-159.range86-154.btcentralplus.com) left irc: "Leaving" [10:55] shellevil (n=user@tor/regular/SpeedEvil) left irc: Read error: 110 (Connection timed out) [10:56] shellevil (n=user@tor/regular/SpeedEvil) joined #highaltitude. [11:11] Laurenceb (n=laurence@host86-133-67-102.range86-133.btcentralplus.com) joined #highaltitude. [11:11] hi [11:11] morning [11:20] . hi [11:20] got the uhf and vhf up on the roof [11:20] hi [11:20] :) [11:20] rjharrison: cool [11:20] time to put the hf up [11:21] Don't forget the ELF for when we get the submarines. [11:21] Action: gordonjcp picked up a copy of "RadioScience Observing" the other day [11:21] some interesting ELF projects [11:21] yeah [11:22] earthquake prediction :P [11:23] I made an ELF antenna a few years ago [11:23] field mills are also fun [11:24] and on the other side - magnetometers [11:25] ionospheric storms, ... [11:25] HAARP [11:26] *black helicopters* [11:30] Laurenceb (n=laurence@host86-133-67-102.range86-133.btcentralplus.com) left irc: "The day microsoft make something that doesnt suck is the day they make a vacuum cleaner" [11:46] sbasuita (n=sbasuita@unaffiliated/drebellion) left irc: "Leaving" [11:48] sbasuita (n=sbasuita@unaffiliated/drebellion) joined #highaltitude. [11:48] rjharrison (n=rharriso@80.176.172.227) left #highaltitude. [11:48] rjharrison (n=rharriso@80.176.172.227) joined #highaltitude. [11:57] Anyone know what the frequencies are for the halo atlantic [11:57] is it 40m [11:57] piung natrium [12:06] jcoxon (n=jcoxon@host86-154-32-159.range86-154.btcentralplus.com) joined #highaltitude. [12:07] hey rjharrison [12:07] its 40m the test was on 7.01410Mhz [12:07] i would assume it'll stay around there [12:20] boo [12:20] coo [12:20] l [12:20] I'm going to set up a 1/4 wave [12:21] 10m long wire [12:22] do you have a tuner? [12:22] might be worth just setting up a longer wire [12:23] Yep I do [12:23] Just not sure what length to make [12:24] I could do a full wave 40m [12:24] I know I'm supposed to keep away from 1/2 wave [12:26] sbasuita (n=sbasuita@unaffiliated/drebellion) left irc: Read error: 110 (Connection timed out) [12:27] jcoxon, what freq are they going to be using on the 18th [12:28] ummm its'll be 40m and 30m [12:28] not sure what the exact freq will be [12:28] Oh yep you said [12:28] if i remember rightly the longer the wire the better [12:28] Well that is true ish it think but no 1/2 wave lenghts [12:29] 10.148 and 7.104 [12:29] 30m TLM downlinks at 00, 10, 20, 30, 40 and 50min [12:29] 40m TLM downlinks at 05, 15, 25, 35, 45 and 55min [12:29] GPS time plus 0-10sec [12:29] FORMAT: VVV call AAAAA LLLLLLL YYYYYYYY BBB TTT [12:29] AAAAA is altitude in meters [12:29] LLLLLLL is latitude in decimal degrees [12:29] YYYYYYYY is longitude in decimal degrees [12:29] BBB is battery voltage [12:29] TTT is ballast tank condition [12:29] Perhaps I should put up 12.5 m [12:30] humm no [12:30] 10 meters would be good as it's 1/4 wave for 40m [12:34] i'd go for a dipole if i was you [12:35] right i'm off [12:35] will be on perhaps later [12:35] rjharrison, still on for sun? [12:37] jcoxon (n=jcoxon@host86-154-32-159.range86-154.btcentralplus.com) left irc: "Leaving" [13:09] epictetu1 (n=pattm@static-71-174-73-53.bstnma.fios.verizon.net) got netsplit. [13:10] epictetu1 (n=pattm@static-71-174-73-53.bstnma.fios.verizon.net) returned to #highaltitude. [13:19] Anouncement Icarus II will be launching sunday subject to wx behaving [13:57] edmoore (n=ed@88-202-192-14.rdns.as8401.net) joined #highaltitude. [14:02] edmoore (n=ed@88-202-192-14.rdns.as8401.net) left irc: Client Quit [14:10] rjharrison (n=rharriso@80.176.172.227) left #highaltitude. [14:12] shellevil (n=user@tor/regular/SpeedEvil) left irc: Read error: 110 (Connection timed out) [14:33] rjharrison (n=rharriso@80.176.172.227) joined #highaltitude. [14:37] edmoore (n=ed@88-202-192-14.rdns.as8401.net) joined #highaltitude. [14:38] Yo ed [14:38] back [14:38] yo rjharrison [14:38] Same about not tracking [14:38] yeah [14:38] The JS is going to take us toward Harwich [14:38] if you'd have told me at 9am :p [14:38] Hehe no plan at that time [14:38] Just ben checking the weather [14:38] actually [14:39] Steve is comming over [14:39] there may be an option [14:39] oh no wait, there is no option [14:39] Local ham's [14:39] well, I could get someone in college to rig up my radio [14:39] but they'd have to break into my room to get laptop etc [14:40] hum [14:40] not an option really [14:41] You need a light radio [14:41] I keep the 817 in the glove comp [14:42] we are going to catch the balloon on sunday [14:42] close tracking [14:43] rjharrison: if you want to loan a poor student the cash for an 817, be my guest :) [14:43] yeah, listen to it the whole way [14:44] our issue was that it was such a 'simple' flight we didn't bother constantly listening in the car, and wrigging to the roof antenna [14:44] if we had that, I'm confident we'd have heard it down to 50m alt, and finind it would be easy [14:44] after doing the tethered test with steve on sunday, it's amazing how high 50m actually is [14:45] You did a huuuuge tethered test, didn't you? [14:45] quiet in here today. It's been flirting with 30 of late [14:50] Yep it's been quite busy [14:50] 842 [14:50] I have 400m of string in the draw [14:50] Kite stuff [14:50] nice [14:50] I'm going to head of to the local HAM shop [14:51] Just got a 10m cable made up for for the HF antenna [14:51] Will hopefully catch landing on video that's the challenge for Sunday :) [14:51] why are you after an HF antenna? [14:51] Halo [14:51] for hamming in general or specifically ballooning? [14:51] ah cool [14:52] 40m [14:52] I may even by an antenna at the ham shop depending [14:52] we've got a landing on video... shame it was just a camera-phone though! [14:52] right must dash kids in car [14:52] crying [14:52] !!! [14:52] Bad dad [14:52] eeek [14:52] rjharrison (n=rharriso@80.176.172.227) left irc: [14:53] rjharrison (n=rharriso@80.176.172.227) joined #highaltitude. [14:59] wb rjharrison [15:16] shellevil (n=user@tor/regular/SpeedEvil) joined #highaltitude. [15:27] hi stilldavid - how's tricks? [16:02] rjharrison_ (i=519f7a01@gateway/web/ajax/mibbit.com/x-19b132c6cbe9905f) joined #highaltitude. [16:03] edmoore (n=ed@88-202-192-14.rdns.as8401.net) left irc: Read error: 104 (Connection reset by peer) [16:03] hum [16:03] edmoore (n=ed@88-202-192-14.rdns.as8401.net) joined #highaltitude. [16:03] Tracker didn't work too well [16:03] It got a few sentences off [16:13] Sunday is looking good for a launch according to the BBC forcast of 2mph winds [16:14] I know I need to look at the jets too [16:14] BTW edmoore was the tidying worth while? [16:15] yes. [16:15] Hiena (n=Hiena@81.93.195.181.datatrans.hu) joined #highaltitude. [16:15] lol [16:15] 'morning! [16:15] afternoon here :) [16:16] i have to go and get some lithiums to run some endurance tests [16:17] Got the dv camera on charge ready to film the landing [16:19] ha [16:19] rjharrison, another launch? [16:19] easier said than done I think [16:19] Yep sunday am [16:19] about 7 am [16:20] Hoping that the telemetry is going to be fine this year [16:20] In fact this should be the best tracked launch to date [16:21] With updates every 20 seconds [16:21] Obv need to have some luck on the way [16:22] on ther server? [16:22] Yep [16:22] Nice. [16:22] I'm decided to making a bootable UAV control CD based on the finnix distribution. [16:23] Wow [16:23] Cool OSS [16:24] edmoore: In your experience what is the chance of casing just using the telmetry [16:24] Am I better off using the CUSF predicotr [16:25] predictor? [16:25] predictor is a modern luxury :) [16:25] Did you film without it? [16:25] but if you want to see it come down, predictor is a real help [16:25] no [16:26] I'm hoping to do it just off the telemetry [16:26] we used the predictor to overtake the balloon and lie in wait for it as it passed overhead at about 50-100m [16:26] that is probably the only way [16:27] they do it in the us without [16:27] but the have more open spaces and wide easy roads [16:28] I can live in hope. i guess it depends on the winds being stable and uniform [16:28] in windy english countryside, having a predictor makes it easier to decide which of n dirt-tracks to take [16:28] windey* [16:28] yep but I guess in the US the problem is choosing the correct road as they are so far appart [16:30] sure, but then they all have trucks and can just wander out into the desert :) [16:32] True. There will be no records set on sunday unless the flight path improves [16:33] I'm thinking 32K ish [16:33] 1.5kg? [16:33] possibly 2kg [16:34] Really a listener and rx test [16:34] not a record attempt [16:34] I would have gone record last w/e [16:36] anything small under a 2/3kg balloon should smash it. Just a question of the right day. [16:38] and wanting to use a 2/3kg balloon on something small :) [16:40] 2kg is fine it would have to be very special for a 3kg [16:42] edmoore: I'm about 15 miles behind a hill [16:42] http://www.robertharrison.org/listen/view.php?id=2e0rjh [16:43] This is the raw data being logged [16:43] A prime example of how this extra data can be used to discern position [16:44] RX (2009-04-10 15:36Z): $$icarus,78617:36:05,53.612980,-1.527353,78,0,000.0,22.0,28.8 [16:44] This is almost a perfect string [16:47] Right i'm signing off [16:47] rjharrison_ (i=519f7a01@gateway/web/ajax/mibbit.com/x-19b132c6cbe9905f) left irc: "http://www.mibbit.com ajax IRC Client" [16:51] afternoon all [16:52] I've been reading about regulations here in the states for unmanned balloons, and they require two independent cut-down systems it appears. [16:53] there are a few techniques I've come across on the interwebs, just curious if anyone here has success/fail stories regarding cut-down systems [17:14] Hiena (n=Hiena@81.93.195.181.datatrans.hu) left irc: "-=Mi ez a szag? Hippit �gett�ll?=-" [17:14] stilldavid: yes [17:14] there seem to be two camps [17:14] pyrotechnics and melty things [17:15] I was looking at melty things, they seem to be the best option [17:16] melty things are easy to test. [17:19] mc- (n=zsirc@cpc3-glfd1-0-0-cust439.glfd.cable.ntl.com) joined #highaltitude. [17:21] jcoxon (n=jcoxon@212.183.136.193) joined #highaltitude. [17:22] Afternoon all [17:22] Action: shellevil looks at the cock. [17:22] clock [17:22] sigh. [17:22] :) [17:22] Action: shellevil has been doing way too much manual labour today. [17:23] Weedkilling, raking stuff up, wheelbarrowing, ... [17:23] Action: jcoxon is on the suffolk coast at a family reunion [17:23] Willingly? [17:23] edmoore (n=ed@88-202-192-14.rdns.as8401.net) left irc: [17:24] mildly [17:24] does place me rather well for the flight on sunday [17:24] :) [17:24] Action: shellevil now has 2 bulk bags of rubbish to dispose of. [17:24] Heading for 3. [17:27] Action: shellevil ponders a _really_ big balloon launch. [17:28] bigger then a ZP? [17:29] (to dispose of the 800Kg or so of rubbish) [17:32] edmoore (n=ed@88-202-192-14.rdns.as8401.net) joined #highaltitude. [17:36] cannon [17:36] shellevil, hehe [17:39] bbl [17:39] jcoxon (n=jcoxon@212.183.136.193) left irc: "Leaving" [17:46] mc- (n=zsirc@cpc3-glfd1-0-0-cust439.glfd.cable.ntl.com) left irc: Read error: 110 (Connection timed out) [18:12] sbasuita (n=sbasuita@unaffiliated/drebellion) joined #highaltitude. [18:12] B12CORE (n=B12CORE@bas1-toronto63-1088799842.dsl.bell.ca) joined #highaltitude. [18:16] hi B12CORE [18:31] rjharrison (n=rharriso@80.176.172.227) left #highaltitude. [18:31] rjharrison (n=rharriso@80.176.172.227) joined #highaltitude. [18:39] Hiena (n=Hiena@81.93.195.181.datatrans.hu) joined #highaltitude. [18:42] Launch details updated http://wiki.ukhas.org.uk/current_launch_details [18:44] yay [18:44] finally a launch :) [18:46]