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[01:56] <natrium42> hrm, wb8elk is launching tomorrow
[01:57] <natrium42> gonna clear up the tracker
[01:57] <SpeedEvil> wb8elk is in the states?
[01:57] <natrium42> yeah
[01:58] Action: SpeedEvil wishes he had the stuff around for a launch.
[01:58] <SpeedEvil> I was pondering a _really_ cheap launch - there is a bin in my recycling centre for phones
[01:59] <SpeedEvil> pick one out, use a cellphone tracker service.
[01:59] <natrium42> would be cool to see how cheaply it can be done
[01:59] <natrium42> can you make hydrogen?
[01:59] <SpeedEvil> Natural gas.
[01:59] Action: SpeedEvil is lazy.
[02:00] <SpeedEvil> But that needs to wait till I get my car on the road.
[02:00] <juxta_> hi all
[02:00] <natrium42> yo juxta_
[02:00] <juxta_> hey natrium42
[02:00] <juxta_> how's things?
[02:01] <natrium42> good, work & studies, etc...
[02:01] <natrium42> how are you?
[02:01] <juxta_> not too bad :)
[02:01] <juxta_> pretty much done moving now, hurrah
[02:02] <natrium42> cool, so what happened to australian team? :P
[02:02] <juxta_> oh that's to be expected
[02:02] <juxta_> they're useless
[02:02] <juxta_> :)
[02:02] <natrium42> at least you qualified
[02:03] <juxta_> (Blitzkrieg is what happened)
[02:03] <natrium42> canada last qualified in the 80ies or something
[02:03] <juxta_> haha
[02:04] <juxta_> natrium42: sounds like Australia's record at the winter olympics
[02:05] <juxta_> we had a gold medal in the speed skating a while ago - basically we were trailing behind everyone else, there was a big accident and everyone fell over (except for the Aussie who was too far back to be affected), then we sailed on and took gold
[02:06] <natrium42> haha, so it pays to be last sometimes :)
[02:06] <SpeedEvil> :)
[02:07] <juxta_> http://www.youtube.com/watch?v=4Z6GnUTVAF0
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[08:05] <rjharrison> junderwood do you have a launch date planned?
[08:05] <junderwood> Nope :(
[08:05] <junderwood> Trying to arrange a suitable date at the moment. Hopefull will have an idea by the end of this week
[08:06] <rjharrison> Ok I need to change the DB a bit for you ready for the data I hope to do that this weekend
[08:06] <junderwood> OK. No chance of launching before then :)
[08:06] <junderwood> s/this week/next week/
[08:06] <rjharrison> Cool. If you could send me a bit of audio when you get 5 I'll make sure the system is fully working
[08:07] <rjharrison> ie form rx to tracker
[08:07] <rjharrison> from
[08:07] <junderwood> OK will have to power it up again. It's sitting in a box ready to go ATM
[08:07] <rjharrison> NP when ever you are ready I have the physical string
[08:08] <junderwood> maybe this evening now I've got the advanced exam out of the way
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[08:43] <jonsowman> jcoxon: morning
[08:46] <jonsowman> zeusbot: poke
[08:46] <jonsowman> wakey wakey
[08:46] <jcoxon> morning jonsowman
[08:47] <jonsowman> hi james :) how did it all go yesterday?
[08:47] <jcoxon> went really well
[08:47] <jonsowman> excellent
[08:47] <jcoxon> perfect delay, a bit delayed in launching, SSTV worked well
[08:47] <jcoxon> then all recovered and returned before 5
[08:47] <jonsowman> nicely done, congrats :)
[08:48] <jcoxon> well ed did alot of the work
[08:48] <jcoxon> there was a little bit of badger craziness
[08:48] <jonsowman> did ed go chasing?
[08:48] <jcoxon> i mean ferret
[08:48] <jcoxon> yeah
[08:48] <jonsowman> oh yes i heard about that. thought we'd fixed that bug :(
[08:49] <jonsowman> complete re-code in order I think
[08:49] <jcoxon> arduino?
[08:49] <jonsowman> yup
[08:49] <jcoxon> just use the tinygps lib
[08:49] <jonsowman> yeh we definitely will
[08:49] <jcoxon> i've got an adapted version
[08:49] <jcoxon> that just uses gpgga
[08:49] <jcoxon> and also reports sats
[08:49] <jonsowman> oo
[08:50] <jonsowman> could I possibly steal that?
[08:50] <jcoxon> its on my github
[08:50] <jonsowman> great
[08:50] <jonsowman> thank you
[08:51] <jonsowman> are any of the SSTV pics around?
[08:51] <jcoxon> http://www.flickr.com/photos/jcoxon77/
[08:51] <jonsowman> lovely
[08:52] <jonsowman> nice!
[08:52] <jonsowman> that's worked really well
[08:52] <jcoxon> yeah far better then expected
[08:52] <jcoxon> also got images on descent
[08:52] <jcoxon> down to 1.5km
[08:52] <jonsowman> impressive
[09:10] <junderwood> jcoxon, just e-mailed you the 32 pictures I managed to receive yesterday
[09:11] <jcoxon> oh thanks junderwood
[09:11] <jcoxon> was just about to reply to your other email
[09:11] <jcoxon> check this out
[09:11] <jcoxon> http://bit.ly/bx74jx
[09:12] <griffonbot> @jamescoxon: #peg7 #cusf - received images plotted on map: http://bit.ly/bx74jx [http://twitter.com/jamescoxon/status/16454995755]
[09:12] <jonsowman> heh neat
[09:13] <junderwood> Very good. Hopefully I have one or two of the ones you missed
[09:13] <jcoxon> junderwood, would you mind if i uploaded those as well
[09:13] <junderwood> NP
[09:13] <jcoxon> will credit you of course
[09:13] <jcoxon> then we'll have a complete map
[09:14] <junderwood> If you fly the payload again, I suggest you stop transmitting photos at 2km. I had to move to the ferret download to make sure I got a good landing spot for Ed
[09:15] <jonsowman> planning to re-do ferret with the tinygps lib and fly it again ASAP
[09:19] <jcoxon> junderwood, very good point
[09:19] <jcoxon> yeah i plan to sort of keep Peg VII in a constant ready state
[09:19] <jcoxon> to fly when required
[09:19] <jcoxon> but will add that in
[09:20] <junderwood> jcoxon, in fact, thinking about it, you should stop transmitting photos such that the last one finishes before 2km.
[09:20] <junderwood> did you record the pictures to SD as well?
[09:21] <juxta> does the SSTV broadcast on the same freq as the telemetry?
[09:21] <jcoxon> junderwood, onto a memory stick yes
[09:21] <jcoxon> before they were formated
[09:21] <jcoxon> so in 640x320
[09:21] <jcoxon> juxta, yes
[09:21] <juxta> oh right
[09:22] <juxta> so a telemetry packet every few minutes? or is it interleaved somehow?
[09:22] <jcoxon> so its 1 image then 6 rtty strings
[09:22] <jonsowman> http://bit.ly/bx74jx
[09:22] <juxta> ah righto
[09:22] <jcoxon> the image is being processed and encoded during the rtty strings
[09:22] <jonsowman> whoops
[09:23] <jcoxon> should we click...
[09:23] <jonsowman> no
[09:23] <jcoxon> okay
[09:23] <jonsowman> well it's just the flickr image map you sent a few minutes ago
[09:23] <jcoxon> oh yeah
[09:23] <jcoxon> oops
[09:24] <jonsowman> it was on clipboard and putty/windows decides that right click automatically pastes, and it had a newline at the end so it sent
[09:25] <jcoxon> hehe
[09:25] <jonsowman> what are your HAB plans now then james?
[09:26] <jcoxon> well i've got ballasthalo to finish and launch
[09:26] <jonsowman> ah yes of course
[09:28] <jcoxon> oh i might add a digital compass to peg vii as well
[09:28] <jcoxon> would be fun to know which direction its pointing in
[09:28] <juxta> i thought about that, but figured it would spin too much to be useful
[09:29] <jcoxon> but for each image would be interesting
[09:29] <jonsowman> if you read from the compass at the same time you read from the camera
[09:29] <jonsowman> yeh
[09:29] <jcoxon> i've also got one lying around
[09:29] <jonsowman> might as well then :)
[09:30] <juxta> is yours tilt compensated jcoxon?
[09:30] <jcoxon> juxta, its not
[09:31] <jcoxon> they aren't cheap :-p
[09:31] <juxta> yeah - mines not either
[09:31] <jonsowman> i wonder what the compass will do if the payload swings then
[09:31] <jonsowman> which it will
[09:31] <juxta> they're ok for a few degrees
[09:31] <jonsowman> right
[09:31] <juxta> mine quotes 15 degrees I think
[09:31] <juxta> +/-15 deg
[09:33] <jonsowman> past that - useless readings?
[09:33] <juxta> not 100% sure - I think it just decays quickly from there on
[09:33] <jonsowman> right
[09:34] <juxta> you can compensate for it if you have an accelerometer
[09:34] <jonsowman> hmm that'd be an interesting experiment
[09:34] <jcoxon> i think for this sort of use all we want to know is N/S/E/W
[09:34] <jonsowman> yep that's fair enough
[09:35] <juxta> yeah - I don't think precision would be all that important :)
[09:35] <juxta> I thought about putting it on a yagi to built an antenna rotator - would want it level in that case
[09:36] <jonsowman> definitely
[09:36] <jonsowman> the CUSF trackatron needs a compass
[09:37] <jonsowman> another thing that needs doing...
[09:39] <juxta> how does it know where it's pointing then?
[09:39] <juxta> just works off a starting position?
[09:39] <jonsowman> yes
[09:39] <juxta> oh right
[09:40] <juxta> jonsowman: do you happen to know what the antenna rotator unit in use is?
[09:40] <jonsowman> I don't i'm afraid, I will try and find out for you
[09:40] <juxta> thanks - was looking around to see if there was anything suitable about
[09:41] <juxta> all I could find was big heavy duty rotators for HF yagi's, that sort of thing
[09:41] <jonsowman> Ed is the guy to ask, he should be on here at some point
[09:41] <juxta> will do, thanks jonsowman
[09:41] <jonsowman> hmm this one is fairly heavy duty, the mount is scaffolding pole
[09:42] <juxta> does it do az/el?
[09:42] <jonsowman> yup
[09:42] <jonsowman> it's just two (reasonably hefty) stepper motors
[09:43] <jonsowman> the control unit was CUSF built
[09:43] <jonsowman> it's an arduino with some power electronics and a serial port
[09:43] <jonsowman> python script talks to it via serial on a host computer
[09:44] <jonsowman> python just tells it az/el and the arduino moves it into position
[09:45] <juxta> ah righto - sounds like what I'd like to do
[09:46] <juxta> avoid buying a ham antenna rotator, just do the control from something like an arduino
[09:46] <jonsowman> yeh it's a nice thing to do, and significantly cheaper
[09:47] <jonsowman> anyway I'll try and find out the make of the stepper unit itself
[09:47] <jonsowman> by its looks, it was bought, not made
[09:47] <jonsowman> http://www.flickr.com/photos/cuspaceflight/4082160869/
[09:48] <jcoxon> jonsowman, i think you guys inherited it from CUWS
[09:48] <jcoxon> I think you guys inheited it from CUWS
[09:48] <jcoxon> oops
[09:48] <jcoxon> repeat
[09:49] <jonsowman> ah right okay
[09:49] <jonsowman> it was with CUSF long before I was :)
[09:57] <juxta> yeah, I've seen that photo
[09:58] <juxta> bit hard to make it out though :)
[09:58] <jonsowman> juxta: yes
[10:01] <juxta> jonsowman: the other option I considered was making one - hacking something like an electric screwdriver for the drive
[10:01] <jonsowman> hmm that would work
[10:01] <jonsowman> the advantage with steppers is that you don't need feedback
[10:01] <jonsowman> you know they will be exactly where you put them
[10:02] <juxta> yeah
[10:02] <jonsowman> but drill motors are cheap
[10:03] <jonsowman> you could use compass and tilt meter for feedback
[10:03] <juxta> or this:
[10:03] <juxta> http://cgi.ebay.com.au/X10-VK74A-NINJA-PAN-n-TILT-XCAM2-REMOTE-CONTROL-MOUNT-/390198598338?cmd=ViewItem&pt=LH_DefaultDomain_0&hash=item5ad9a61ac2
[10:04] <jonsowman> not having continuous 360 panning might cause problems
[10:04] <juxta> yeah - on the otherhand it is quite cheap :)
[10:04] <jonsowman> that's true
[10:05] <jonsowman> maybe it's hackable
[10:05] <juxta> http://aa5fr.com/elcheapoazel.htm
[10:05] <jonsowman> nice
[10:06] <jonsowman> that's rather neat
[10:06] <juxta> I think i'll buy one actually, can't imagine it being too hard to hack
[10:06] <juxta> it has a remote - just hack into that even :)
[10:06] <jonsowman> true
[10:06] <jonsowman> right bbl
[10:06] <juxta> oh wait - it's software programmable too, perhaps there is an API
[10:07] <jcoxon> bbl
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[10:25] <mc-> rjharrison, are you there?
[10:27] <mc-> I would like to borrow some of your HAB pics to put on a stand at a science festival
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[11:45] Topic changed on #highaltitude by jcoxon!jcoxon@host86-163-57-136.range86-163.btcentralplus.com: Welcome to #highaltitude - discuss anything to do with high altitude projects (balloons, gliders, etc) www.ukhas.org.uk.
[12:14] <jonsowman> jcoxon: ping
[12:20] <jcoxon> jonsowman, yup
[12:25] <jonsowman> what camera was it you used on peg7
[12:26] <jcoxon> c328 jpeg camera
[12:26] <jonsowman> thanks :)
[12:26] <jcoxon> http://www.sparkfun.com/commerce/product_info.php?products_id=9334
[12:26] <jcoxon> they are increasingly rare
[12:26] Action: SpeedEvil sighs.
[12:27] <jonsowman> seems so
[12:27] Action: SpeedEvil has been looking for cheap wlan modules that can be glued to AVR/...
[12:27] <SpeedEvil> Can't seem to find anything at all.
[12:28] <jcoxon> jonsowman, http://www.active-robots.com/products/sensors/sparkfun/jpeg-colour-camera-uart-interface.shtml
[12:33] <jonsowman> jcoxon: thanks
[12:35] <jcoxon> np
[12:35] <jcoxon> what you planning ? :-)
[12:41] <jonsowman> potential image transmission
[12:41] <jonsowman> not for Apex II though
[12:43] Action: Randomskk still wants to get his fpga reading images from that other sparkfun camera
[12:44] <jcoxon> yeah getting a cmos camera working direct would be a lot better
[12:44] <jonsowman> Randomskk: yo
[12:44] <jcoxon> but for ease of use the jpeg cameras are great
[12:44] <jcoxon> right bbl
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[12:44] <Randomskk> hi
[12:44] <jonsowman> hows it going?
[12:44] <Randomskk> need to pack quite urgently
[12:44] <Randomskk> room is quite messy
[12:44] <jonsowman> haha
[12:44] <jonsowman> i know the feeling
[12:44] <Randomskk> still haven't had a chance to get anyone with the nerf gun, going home at 1030 tomorrow
[12:45] <Randomskk> not really sure what to do today :P
[12:45] <jonsowman> :\
[12:45] <jonsowman> nerf gun peoples
[12:46] <Randomskk> should do
[12:52] <jonsowman> so Linode's 7th bday present is awesome
[12:57] <Randomskk> isn't it just
[12:57] <Randomskk> need to reboot though
[12:57] <Randomskk> :(
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[13:17] <jonsowman> yeh ruined my uptime :(
[13:19] <Randomskk> considering downgrading paladin to 512
[13:20] <Randomskk> sbasuita: around?
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[13:20] <Randomskk> I think I can start it, maybe
[13:20] <jonsowman> hmm yeh 768 is a bit unnecessary
[13:20] <jonsowman> could downgrade kryten to 512
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[13:21] <Randomskk> yay
[13:22] <jonsowman> \o
[13:24] <Randomskk> man, linode is now quite a lot cheaper than slicehost
[13:27] <jonsowman> yup
[13:27] <jonsowman> :)
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[14:19] <mc-> jcoxon, are you there?
[14:20] <mc-> or rharrison?
[14:20] <jcoxon> mc-, ypu
[14:20] <jcoxon> yup*
[14:20] <rharrison> me
[14:20] <mc-> I would like to borrow some of your HAB pics to put on a stand at a science festival
[14:21] <jcoxon> a science festival?
[14:21] <mc-> its for kids
[14:21] <rharrison> help yourself to any of mine
[14:21] <mc-> thanks, please give me a link
[14:22] <mc-> I wanted to print out on A3 paper, are there some hi-res images?
[14:22] <rharrison> http://www.flickr.com/photos/30721501@N05/collections/72157621244472915/
[14:22] <SpeedEvil> Speaking in general, very few HAB images have any point at high resolution.
[14:23] <SpeedEvil> Simply as there is very, very little detail at over 1024*768
[14:23] <jcoxon> mc-, which festival are you doing a stand at?
[14:23] <rharrison> If you select an image and select original from the size option at the top that is the best res. I have
[14:23] <mc-> thanks very much
[14:23] <SpeedEvil> The air blurs things to a large degree, and as stars are not picked up - usually the only thing in principle with sharp edges would be the moon.
[14:23] <rharrison> jcoxon, very nice SSTV from yeaterday sir
[14:24] <rharrison> yesterday
[14:24] <SpeedEvil> This is much less true in more southerly places than britain - where the sky can be considerably clearer
[14:24] <mc-> jcoxon, http://www.cbsbutler.com/science-festival
[14:25] <mc-> I'm on a stand showing the funcube satellite, www.funcube.org.uk
[14:25] <rharrison> jcoxon, There was a fantatice pic at 19k with land and sea and space all in one
[14:26] <jcoxon> oh right
[14:26] <SpeedEvil> mc-: fun.
[14:26] <jcoxon> mc-, don't see you round here that often theses days
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[14:44] <mc-> have been busy
[14:44] <mc-> but less busy now
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[15:41] <natrium42> ou est le jcoxon?
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[15:56] <sbasuita> hi Randomskk
[15:56] <Randomskk> yo
[15:56] <natrium42> bonjour mes amis!
[15:56] <Randomskk> oh, griffonbot timed out, what
[15:56] <Randomskk> had to restart cleric but restarted griffon too, unsuccessfully
[15:56] <Randomskk> you may want to do that
[15:56] <sbasuita> ok
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[15:58] Action: griffonbot is GriffonBot [http://github.com/ssb/griffonbot]
[15:58] Action: griffonbot is following: #ukhas #arhab #cusf
[16:06] <juxta> I have a failing drive :(
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[16:30] <fsphil> *click* *click* *click* style?
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[16:38] Action: SpeedEvil has a replacement for a failing drive coming by post. Yay.
[16:38] <SpeedEvil> 320G 2.5"
[16:38] <natrium42> looks like wb8elk is up
[16:39] <SpeedEvil> pondering promptly ebaying 'new' drive, and upgrading.
[16:39] <SpeedEvil> Probably not though.
[16:39] Action: sbasuita either needs to delete windows or buy a bigger hard drive
[16:40] <sbasuita> s/bigger/another
[16:40] <Randomskk> I could do with more hard drive capacity too
[16:40] Action: natrium42 got a 1TB hdd recently
[16:40] <Randomskk> atm this desktop is running on 1x500GB
[16:40] <sbasuita> Randomskk: same
[16:40] <natrium42> fits into MBP nicely
[16:40] <Randomskk> my old computer had 240, 120, 120, 140 all in it, was a bit messy
[16:40] <Randomskk> could really do with a 2TB or so
[16:40] <sbasuita> ok now that's a bit silly
[16:41] <natrium42> do you have 2 slots, Randomskk?
[16:41] <SpeedEvil> Actually - ATM - I'm using a 16G and a 320G in 'RAID'
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[16:41] <SpeedEvil> SD card
[16:41] <natrium42> jcoxon \o/
[16:41] <jcoxon> hey natrium42
[16:41] <natrium42> great launch yesterday
[16:41] <jcoxon> thanks
[16:41] <jcoxon> though i couldn't get the pic uploading to work
[16:41] <jcoxon> has it broke?
[16:41] <natrium42> hrm, should be working
[16:41] <Randomskk> natrium42: I have loads and loads of slots, desktop
[16:41] <natrium42> i will check
[16:41] <natrium42> btw, looks like wb8elk just launched
[16:42] <Randomskk> like 8
[16:42] <jcoxon> oh great
[16:42] <natrium42> Randomskk, meh, boring
[16:42] <natrium42> Randomskk, largest laptop HDD is 1TB :P
[16:42] <Randomskk> :P
[16:42] <juxta> fsphil: no - it's a 500GB drive in a RAID
[16:42] <jcoxon> natrium42, should we get rid of the first point
[16:42] <jcoxon> as it looks a little weird
[16:42] <natrium42> sure
[16:42] <natrium42> weird that there are no more updates
[16:43] <natrium42> is it on APRS too?
[16:43] <juxta> not clicking, but SMART predicts death within 24 hours, and it's having trouble with failing to read a lot of sectors
[16:43] <natrium42> APRS: WB8ELK-10 and WB8ELK-11 on 144.39
[16:43] <SpeedEvil> juxta: backup.
[16:43] <natrium42> http://aprs.fi/?call=WB8ELK-11&mt=m&z=11&timerange=3600
[16:44] <juxta> SpeedEvil: it's not trouble, I've already failed it and taken it out of the array - will swap it out tomorrow
[16:44] <juxta> with any luck, it will even go to plan
[16:44] <juxta> that doesnt happen too often of course
[16:45] <SpeedEvil> ah
[16:45] <natrium42> jcoxon, do the files upload fine?
[16:45] <natrium42> just don't show?
[16:45] <juxta> righto, bed time here, night all :)
[16:45] <natrium42> nite juxta
[16:45] <jcoxon> yeah
[16:46] <natrium42> are you doing the meta data post?
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[16:47] <jcoxon> yeah
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[16:49] <cuddykid> high all, just about to pop of to shops so just a quick question! About ground plane for lassen iq gps antenna. It says 60x60mm in guide, is this right? Also, what metal is best? And does it need to be connected to the antenna or not? thanks :)
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[16:50] <jcoxon> oops
[16:50] <jcoxon> natrium42, seems like its updating again
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[16:53] <natrium42> jcoxon, works for me
[16:53] <natrium42> check tracker
[16:54] <jcoxon> yeah i can see
[16:54] <jcoxon> odd
[16:54] <jcoxon> next time then
[16:56] <natrium42> :)
[16:58] <jcoxon> what was the command
[16:58] <natrium42> http://spacenear.us/tracker/track.php?vehicle=wb8elk&lat=80&lon=80&pass=****&picture=hadie-1271410936.jpeg
[16:58] <natrium42> well, it should also have time and alt :P
[16:59] <jcoxon> oh i see what was wrong
[16:59] <jcoxon> i think i didn't do the path for picture
[16:59] <natrium42> whoops, looks like the alt graph is updated from picture metadata
[16:59] Action: natrium42 fixes
[16:59] <cuddykid> what metal do you guys use for the ground plane of the 1/4 antenna onboard?
[16:59] <natrium42> hmm, what path?
[17:00] <jcoxon> natrium42, i'll have ago after the flight
[17:00] <natrium42> cuddykid, just use a patch antenna with built in ground plane
[17:00] <jcoxon> cuddykid, for the 1/4 i use wire radials
[17:00] <natrium42> oh, i thought you were talking about GPS antenna
[17:00] <cuddykid> jcoxon, so no ground plane?
[17:00] <jcoxon> so 4 pieces of wire
[17:00] <jcoxon> that is a ground plane
[17:01] <jcoxon> well it creates a 'ground plane'
[17:01] <cuddykid> ok, thanks! Just thick (ish) wire at 90 degrees?
[17:01] <cuddykid> do you use straws to hold in place?
[17:01] <jcoxon> exactly
[17:01] <cuddykid> brilliant :)
[17:02] <cuddykid> no coax or anything to connect up to ntx2?
[17:02] <jcoxon> oh i use coax in between
[17:02] <jcoxon> the wires need to be attached to ground of ntx2
[17:03] <jcoxon> which is via the coax of the cable
[17:03] <cuddykid> ok, which part is the coax connected to, the center point of all the wires?
[17:04] <jcoxon> so coax cable has a central wire which goes from the ntx2 output to the 1/4 wave
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[17:04] <jcoxon> then ground is the wire shield
[17:04] <jcoxon> you attach the radial wires to the shield
[17:05] <cuddykid> ok, got you i think! All 5 radial wires to the shield?
[17:05] <jcoxon> 4 radials
[17:05] <cuddykid> so the wire pointing down (or up!) is not connected?
[17:06] <jcoxon> thats connected to the central wire in the coax cable
[17:06] <jcoxon> which is then connected to the ntx2 output
[17:06] <cuddykid> ok, i see!
[17:06] <sbasuita> cuddykid: you have one wire pointing up connected to the inner bit of the coax, then four wires perpendicular connected to the outer part of the coax
[17:06] <cuddykid> but all the wires are connected at one point correct?
[17:07] <sbasuita> yes
[17:07] <cuddykid> ahh, i'm getting the picture sbasuita!
[17:07] <cuddykid> right, i'll go and get some thick(ish) wire and coax and have a play around!
[17:08] <cuddykid> and all the wires are 1/4 of 70cm right?
[17:09] <rharrison> cuddykid, you only need two wires for the GP and one for the Active
[17:09] <Randomskk> well the driven wire doesn't connect to the ground plane
[17:09] <Randomskk> all the ground plane radials connect together, and the driven element goes through the middle
[17:09] <rharrison> GP = 70/4 and active = 70/4*0.95
[17:09] <rharrison> ie a bit shorter
[17:10] <cuddykid> right, got you :)
[17:10] <Randomskk> http://www.flickr.com/photos/randomskk/4414039114/ http://www.flickr.com/photos/randomskk/4413270817/ might help
[17:10] <Randomskk> the wire is going through a hole in that copper for the driven element
[17:10] <cuddykid> so driven isn't connected to GP radials?
[17:10] <cuddykid> thanks randomskk
[17:10] <Randomskk> correct.
[17:10] <cuddykid> cool
[17:10] <Randomskk> that wire is going through the copper, but the shield on that coax is soldered to the copper, and then the ground planes are soldered to it
[17:11] <rharrison> Though like I say the extra to GP's are for fun and make almost no difference
[17:11] <Randomskk> the centre wire on that coax goes to the middle of the three ntx pins, and doesn't connect to the ground plane wires at all
[17:11] <rharrison> to = two
[17:11] <cuddykid> yep, get it! where could I get a piece of copper like that from do you think?!
[17:11] <Randomskk> you are trying to approximate an infinite plane
[17:11] <Randomskk> cuddykid: not really needed, it is actually scrap copper clad board (PCB material)
[17:11] <jcoxon> rharrison, is the almost that counts!
[17:11] <Randomskk> you can just solder wires
[17:11] <jcoxon> i just solder the wires
[17:11] <rharrison> lol I think 300km is fine
[17:11] <jcoxon> for 2 extra wires pah
[17:11] <cuddykid> ok, cool
[17:12] <rharrison> if you need the extra then go for it
[17:12] <jcoxon> always need extra
[17:12] <jcoxon> :-p
[17:13] <cuddykid> do you think the copper clad (pcb) board will work for ground plane for my gps antenna aswell?
[17:14] <rharrison> TBH though almost all hab flights have the GP at right angles to the active and this affects the impedence to about 35 ohms. It's by adjusting the angls to 120 degrees that gives the 50 ohms impedence match
[17:15] <rharrison> cuddykid, I wouldn't make the gps ant.
[17:15] <rharrison> As jcoxon said buy one
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[17:16] <cuddykid> rharrison, atm, on its own the lock is very very weak, i.e. if I stand near it it loses lock :S
[17:16] <rharrison> cuddykid, is that with no antenna or one you brought
[17:16] <cuddykid> no, i've got a gps antenna atm, the one for lassen iq however it needs a ground plane apparently to work
[17:16] <cuddykid> rharrison, one i've bought
[17:17] <rharrison> Humm I don't recall that ever being a problem
[17:17] <jcoxon> cuddykid, lassens are pretty rubbish
[17:18] <cuddykid> this is what the guy that sold them to me said:
[17:18] <rharrison> I think you will be fine with nothing but if you want you could cove the underneath with aluminuim foil to act as a ground plane
[17:18] <cuddykid> Adam
[17:18] <cuddykid>
[17:18] <cuddykid> The unpackaged antenna requires a ground plane in order to work. In short  you need to place a piece of metal directly behind the antenna (with the antenna pointing at the sky), as per sections 3 and 7 of the attached document (ignore the part number difference).
[17:18] <cuddykid>
[17:18] <cuddykid> You will also need Trimbles GPS studio from here if you wish to configure the unit:
[17:18] <cuddykid>
[17:18] <cuddykid> http://www.trimble.com/embeddedsystems/lasseniq.aspx?dtID=support (click on support tools)
[17:18] <cuddykid>
[17:18] <cuddykid> Note that the serial ports on the unit are TTL level  you need a level shifter to connect them to an RS-232 port.
[17:18] <cuddykid>
[17:18] <cuddykid> Let me know if you need any help.
[17:18] <cuddykid>
[17:18] <cuddykid> Regards
[17:18] <jcoxon> wow
[17:18] <jcoxon> careful
[17:18] <natrium42> :D
[17:18] <jcoxon> not to many lines
[17:18] <cuddykid> woah! sorry, guys!
[17:18] <jcoxon> i added a bit of tinfoil to the bottom of mine
[17:18] <natrium42> * jcoxon has gained op status
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[17:19] <cuddykid> ok, brilliant, well, i'm popping out to shops now, get a few more resisitors and stuff! Thanks for the help :)
[17:19] <rharrison> the other thing to check it that there is no local GPS interferrence. This can be done with a Car Sat Nav with satelite counts or indeed buy cheching the output from the lassen
[17:19] <rharrison> cuddykid, lassens are great
[17:20] <rharrison> :-P
[17:20] <rharrison> But UBLOX are better
[17:20] <cuddykid> ok! yeah, will have a look with my etrex for interference :)
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[17:37] <jcoxon> interesting flight path for wb8elk
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[18:19] <jcoxon> hey all
[18:19] <jcoxon> i'm reconstructing laptop battery pack with new cells
[18:20] <jcoxon> now i think i'm going mad
[18:20] <jcoxon> oh wait
[18:20] <jcoxon> i've worked it out
[18:20] <jcoxon> :-p
[18:20] <SpeedEvil> The charge meter is not always trivially resettable
[18:21] <jcoxon> yeah i know about that
[18:21] <jcoxon> will have to see...
[18:36] <fsphil> result! found a BOC dealer, almost next door to me :) helpful bunch too
[19:14] <DanielRichman> Unless I'm confused... why is the ft817 + amplifier & kit to use it significantly more expensive than a rig that does 100W straight away; eg 897?
[19:15] <russss> because it's more portable presumably
[19:15] <DanielRichman> well the 897 itself is portable; like a big brother of the 817
[19:15] <DanielRichman> iirc rjh has one
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[20:24] <jcoxon> Randomskk, you and hackaday
[20:24] <jcoxon> :-p
[20:24] <Randomskk> :P
[20:24] <Randomskk> yay hackaday++
[20:26] <fsphil> hackadayortwo
[20:28] <Randomskk> step two is going to be making it cooler, but that can come later
[20:31] <DanielRichman> lasers.
[20:32] <Randomskk> gonna drop the servo and instead wire the internals
[20:32] <Randomskk> laser tripwires
[20:32] <Randomskk> xbees
[20:32] <Randomskk> some kind of activate/deactive keychain for me
[20:33] <DanielRichman> well I was thinking more along the lines of the massive red laser the portal turrets have poking out the front but I guess wouldn't be that visible
[20:33] <DanielRichman> are you going to wire it up so the arduino can aim it eventually?
[20:33] <Randomskk> probably not
[20:33] <Randomskk> it has sufficient scatter to cover a doorway
[20:33] <Randomskk> a motorised platform is a lot of effort and very not worth it
[20:33] <DanielRichman> mmm
[20:33] <Randomskk> lasers are cool otoh
[20:34] <Randomskk> I'd like all the gun's mods to be internal
[20:34] <Randomskk> so it looks stock
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[20:34] <DanielRichman> so it looks safe
[20:35] <DanielRichman> and harmless
[20:35] <Randomskk> you can probably imagine what this is for
[20:36] <DanielRichman> an automated nerf gun has more applications than you could get through in a year
[20:36] <Randomskk> but in my room, in cambridge, it serves one main purpose
[20:37] <DanielRichman> :P
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[21:56] <G8KHW> anyone know where I can get the latest dlfldigi windows binaryfrom?
[22:06] Nick change: G8KHW -> G8KHW|Away
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[22:10] <jonsowman> edmoore: hi
[22:10] <edmoore> hi
[22:11] <jonsowman> hows things?
[22:11] <edmoore> good thanks
[22:11] <edmoore> you?
[22:11] <jonsowman> yeh fine thanks
[22:11] <jonsowman> launch go alright?
[22:11] <jonsowman> i see ferret needs more work :(
[22:12] <edmoore> it worked fine afaik
[22:12] <edmoore> the crap was induced by the 24km limit
[22:12] <jonsowman> oh right...
[22:12] <jonsowman> the track on spacenear looked a bit weird
[22:13] <edmoore> that was alll above 24km
[22:13] <jonsowman> right
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[22:25] <fsphil> G8KHW|Away, http://github.com/danielrichman/dl-fldigi-windows-build/downloads
[22:26] <DanielRichman> as you can see that is a bit out of date :) it's not too bad though
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[22:31] <junderwood> edmoore, there was a certain amount of rubbish from ferret dropping the "-" from west longitudes
[22:32] <junderwood> sometimes
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[22:36] Nick change: SpeedEvil1 -> Speeeeeeeeeeeeee
[22:36] Nick change: Speeeeeeeeeeeeee -> Speedevil
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[23:02] <DanielRichman> awesome; it lives. great success with the xplain avr board; just managed to program the ATxmega chip via the ATUSB->PDI bridge on the board; need to now test the DAC to see if it's a suitable candidate for alien#2
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[23:54] <griffonbot> @jonsowman: RT @apex_ii: PICAXE NMEA parser on github http://bit.ly/bOR8SG #apexhab #arhab [http://twitter.com/jonsowman/status/16503614953]
[00:00] --- Sat Jun 19 2010