highaltitude.log.20120504

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[06:17] <griffonbot> Received email: John Underwood "[UKHAS] Launch Announcement: Friday 4th May - Chalgrove - Update"
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[07:01] <jcoxon> morning all
[07:02] <UpuWork> morning
[07:02] <daveake> morning
[07:02] <UpuWork> hey jcoxon would you be interested in an NTX2 that ran at say 434.200 ?
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[07:03] <UpuWork> thats the input and output of an NTX2 http://dl.dropbox.com/u/63720513/ntx2_output_filters.png
[07:04] <UpuWork> having trouble identifying some components so the bit in the middle is missing
[07:05] <jcoxon> UpuWork, i'm not sure i'd use it to tell the truth
[07:05] <UpuWork> yeah just wondered
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[07:07] <jcoxon> but then when was the last time i launched a normal payload :-)
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[07:08] <UpuWork> lol yeah
[07:09] <UpuWork> I'm looking to replace the crystal with a different frequency and hopefully better temp stability
[07:09] <UpuWork> whether I can get both those cost effectively is another matter
[07:09] <UpuWork> as soon as you mention "military spec" you can just hear the cash register going in the back ground
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[07:21] Action: Darkside is working on colour coding his shiny new arrow antenna
[07:22] <fsphil> black
[07:23] <Darkside> heh
[07:23] <Darkside> i mean marking the different elements
[07:23] <Darkside> so its easier to put together
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[07:25] <fsphil> yea
[07:27] <fsphil> have you tried it yet?
[07:27] <Darkside> not for sat work
[07:27] <Darkside> have used it for df work in the past though
[07:27] <Darkside> i bought it off a fellow ham
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[07:36] <nosebleedkt_> hi fsphil and Darkside
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[07:41] <fsphil> mornin nosebleedkt_
[07:46] <Darkside> http://i.imgur.com/tieJH.jpg
[07:47] <number10> did you make that Darkside
[07:47] <Darkside> just put it together lol
[07:49] <number10> :)
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[07:50] <number10> some people at work hand make antennas - not as nice as that
[07:50] <Darkside> its an arrow antenna
[07:50] <Darkside> they're hard to get outside of the US
[07:52] <Upu> what band is it Darkside ?
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[07:56] <Darkside> Upu: dual band 2/70
[07:56] <UpuWork> ok
[07:59] <WillDuckworth> gather martlet went reasonably well and fsphil has a raspberry pi - exciting times :)
[08:10] <Laurenceb_> a hypeberry?
[08:10] <jonsowman> WillDuckworth: yes martlet went mostly well
[08:10] <oh7lzb> hypeberry :)
[08:10] <jonsowman> just hope they find stage 2 today
[08:11] <Laurenceb_> its clearly in orbit
[08:11] <jonsowman> also i'm not sure how bad the damage to stage 1 is
[08:14] <fsphil> I like my hypeberry :)
[08:14] <jonsowman> got it running fldigi and the FCD yet?
[08:14] <fsphil> have dl-fldigi source on it, was installing some dependencies this-morning
[08:14] <fsphil> will continue later
[08:15] <jonsowman> :)
[08:15] <fsphil> it's not terribly fast
[08:15] <jonsowman> i have a sheevaplug running at home for bits and pieces, and that's pretty slow
[08:16] <fsphil> yea, they're probably similar. it's usable for things like xchat and terminals, but web browsing is fairly painful
[08:16] <jonsowman> mm i can imagine
[08:16] <fsphil> I'll be surprised if fldigi can run real time
[08:17] <fsphil> it's pretty much the same size as an arduino, slightly bigger
[08:17] <fsphil> lots of gpio pins
[08:18] <jonsowman> i'm going to turn one into a carputer i think
[08:20] <fsphil> been trying to think of uses in a hab payload but there's nothing you couldn't do on an avr
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[08:20] <fsphil> not without a faster downlink anyway
[08:20] <jonsowman> yeah
[08:20] <fsphil> but for tracking it could be perfect
[08:20] <jonsowman> that would be pretty good
[08:21] <jonsowman> it'd work nicely for the remote cusf station
[08:21] <fsphil> are there monitors designed for cars?
[08:21] <jonsowman> yeah there are some suitable ones
[08:21] <jonsowman> really i just want a wifi hotspot, automatic chase car position uploading
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[08:22] <jonsowman> rpi, usb gps and gsm dongle
[08:22] <jonsowman> whack it all in a box in the glovebox and find a nearby loom to hook onto
[08:22] <jonsowman> :)
[08:22] <fsphil> I'm not very technical when it comes to cars. I'll just plug it into the lighter socket :)
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[08:23] <jonsowman> to be honest i may end up running wires from under the cig lighter
[08:23] <jonsowman> i want to keep the thing itself free though
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[08:24] <fsphil> yea it would be nice to have it completely hidden
[08:24] <fsphil> apart from the screen
[08:24] <fsphil> gsm module is a good idea
[08:25] <jonsowman> http://www.flickr.com/photos/jonsowman/6307676534/in/set-72157628039764600
[08:25] <jonsowman> that's my car with the floor centre console removed
[08:25] <jonsowman> as you can see there's loads of room under there...
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[08:31] <fsphil> actually thinking about it, a car-based access point is a great idea
[08:32] <jonsowman> yeah it'd be so useful
[08:32] Nick change: MrScienc1Man -> MrScienceMan
[08:33] <fsphil> there are access points with usb ports that can run openwrt
[08:33] <fsphil> might be a bit lighter on power
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[08:33] <fsphil> although the pi is cheaper
[08:33] <jonsowman> i'd like to have it upload chase car position as well
[08:34] <jonsowman> i think an rpi would work quite nicely :)
[08:35] <fsphil> it has audio out, could have it do voice announcements
[08:35] <jonsowman> :D
[08:36] <fsphil> "the payload has landed in a tree. lols"
[08:36] <jonsowman> haha
[08:37] <fsphil> or voice chat with the other chase cars
[08:37] <jonsowman> so many possibilities :D
[08:38] <jonsowman> happily my car already has a gsm antenna installed from an old handfree kit
[08:38] <fsphil> handy
[08:38] <jonsowman> also there's a microphone above the rear view mirror
[08:38] <jonsowman> voice commands :D
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[08:53] <fsphil> are there voice recognition systems for linux?
[08:53] <jonsowman> ive no idea
[08:53] <jonsowman> not looked into it
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[09:03] <Matt_soton> morning
[09:03] <Matt_soton> jonsowman: what range did you manage to pull the micrel crystal before it gave up?
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[09:18] <griffonbot> Received email: "Re: [UKHAS] launch this Sunday 6th BELLO MONDO-8"
[09:19] <kokey> so what launches are happening this weekend?
[09:19] <kokey> I'm going to be down Devon way, doubt anything will be flying past me
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[09:43] <M0JCU> HelioSS / Vortex launch planned for 12:00 BST
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[09:54] <gonzo_> BONZO pico still on for monday midday
[09:54] <gonzo_> going up from dorset, but predict looks like going NE at the mo
[09:55] <number10> thats better than se gonzo_ :)
[09:56] <Laurenceb> MI5 chasecar?!
[09:57] <daveake> Better get my mast up then. What time's launch expected?
[09:57] <gonzo_> well, we would still launch. the gandela is designed to be waterproof and float, antenna up. So poss could see it, as long as it's not too far out
[09:59] <navrac> 12 for launch
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[10:07] <MrScienceMan> do most ballon launched in the UK go SE ?
[10:08] <SpeedEvil> It varies a lot
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[10:08] <Laurenceb> who is launching? I though that place is where eroomde used to work
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[10:10] <Laurenceb> someone from IAR systems?
[10:13] <gonzo_> the predict for BONZo varies day to day. London, callis, cornwall.... Just toss a coin!
[10:15] <jcoxon> MrScienceMan, the winds generally blow from SW to NE
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[10:40] <gonzo_> probably a difference between pico, where it is subject to the lower air movements and the HABs that hit the higher, more predictable air
[10:41] <SpeedEvil> http://www.youtube.com/watch?v=KRBH21IvSrc&feature=my_liked_videos&list=LLBGlboO77mQ_IveRSyp9qpA - cat hacking
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[10:49] <Laurenceb> http://redlum.xohp.pagesperso-orange.fr/electronics/wideband.html
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[10:53] <gonzo_> anyone got any info on estimating ascent speed from a free lift value?
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[10:54] <Randomskk> gonzo_: http://www.cusf.co.uk/calc/ may be of use
[10:55] <Randomskk> or, from the source:
[10:55] <Randomskk> ascent_rate = Math.sqrt(free_lift / (0.5 * cd * launch_area * rho_a));
[10:55] <Laurenceb> i like the BIG FONT
[10:55] <Randomskk> yes. it's easy to use.
[10:56] <Randomskk> the smaller font is reserved for the advanced stuff ;)
[10:57] <gonzo_> ah ta
[10:57] <gonzo_> I was trying to derive from first principans, but to many vars
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[10:59] <number10> vortex is up
[11:00] <gonzo_> only has the latex balloon options. But playing gived some rough minimums fo free lift to play with
[11:00] <Randomskk> gonzo_: you can probably just plug into that formula
[11:00] <Randomskk> Cd and launch_area are going to be very different for balloons other than the one selected
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[11:01] <Randomskk> number10: freq?
[11:01] <Randomskk> hmm actually I should probably revise rather than track...
[11:01] <gonzo_> I was assuming my area to be less than a latex of similar weight, just wanting rough idea
[11:02] <number10> not recieving it just noticed on tracker
[11:02] <Randomskk> ah ok
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[11:04] <jdtanner> Are they tethered together?
[11:04] <Laurenceb> launch
[11:05] <M0JCU> Balloon in the air if anyone's interested!
[11:06] <Laurenceb> http://www.ebay.co.uk/itm/230784628878
[11:06] <griffonbot> Received email: =?utf-8?Q?John_Underwood?= "RE: [UKHAS] Launch Announcement: Friday 4th May - Chalgrove - Update"
[11:06] <M0JCU> two payloads - one balloon
[11:06] <M0JCU> Vortex will separate at 15km
[11:06] <M0JCU> (hopefully)
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[11:07] <Laurenceb> cutdown?
[11:07] <MrScienceMan> alias ff
[11:07] <M0JCU> Yes,. Cutdown
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[11:08] <jdtanner> Nice, looking forward to this :)
[11:08] <jdtanner> Sham I haven't got any power sorted on my 790 yet :(
[11:08] <M0JCU> more listeners would e good!
[11:08] <andrew_apex> What's this about the cutdown?
[11:09] <jdtanner> If amazon did 20 min delivery I'd be helping :)
[11:09] <andrew_apex> I'll start tracking once I'm home in an hour
[11:10] <M0JCU> andrew_apex. Thanks
[11:11] <andrew_apex> Current altitude?
[11:11] <daveake> Very very weak signal here. Maybe my antenna cable is broken - it should be really strong by now
[11:12] <M0JCU> vortex is 50 baud. Probably the best to try
[11:12] <M0JCU> 434.076.530
[11:13] <daveake> yeah that's what I'm on. Getting some characters but miles from a full sentence
[11:13] <M0JCU> F5APQ has it in France (thanks)
[11:14] <daveake> Stronger with a little aerial here. My cable must be broken.
[11:15] <Randomskk> no signal on a whip on the windowsill here in cambridge
[11:15] <Randomskk> not in the green horizon yet either though
[11:16] <daveake> OK, put a magmount on. Here we go.
[11:16] <daveake> Must have damaged the cable out to the mast.
[11:16] <andrew_apex> This is going to be the first test of my new preamp :)
[11:16] <andrew_apex> (masthead preamp)
[11:18] <F5APQ> afternoon all i am located near Calais
[11:19] <navrac> very strong here on helios - but not uploading for some reason
[11:20] <M0JCU> F5AQP thanks for listening
[11:20] <navrac> these all look good packets - but its not going green and uploading them
[11:20] <jcoxon> pressed autoconfigure?
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[11:20] <navrac> yep
[11:21] <navrac> $$HelioSS,0364,11:20:57,051.66330,-001.01453,07753,10,3,-0.3,-14.7,-15.7,-14.7,-15.5,-14.0,-6.2,366.5*b52b
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[11:21] <gonzo_> I had that with earlier version
[11:21] <navrac> loads like this - but no upload
[11:21] <gonzo_> re-open it seemed to help
[11:21] <jcoxon> any info in the bottom status bar?
[11:22] <navrac> sentance start extracting - just no uploading
[11:22] <jcoxon> strange, really not sure
[11:22] <navrac> time since rx isnt registring either
[11:22] <jcoxon> i'd restart
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[11:23] <navrac> just have and it seems to have fixed it
[11:24] <navrac> oh it fixed it for one packet!
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[11:25] <navrac> im on 3.20.29 is there a later 9one?
[11:25] <gonzo_> checked the 'online' box in the options?
[11:25] <fsphil> ooh launch
[11:25] <navrac> yep
[11:25] Nick change: AndChat| -> NigeyMoby
[11:26] <M0JCU> fsphil. Bet you can't pick up Vortex - It's releasing at 15km
[11:26] <fsphil> my radio at home is off, so definitely no :)
[11:26] <gonzo_> the 3.21.38 seems more stable wrt to that not extracting prob
[11:26] <fsphil> at 15km I'd sometimes see it on the waterfall
[11:28] <navrac> anyone got a compiled version of 3.21 for windoze
[11:28] <Randomskk> can just about see it on the waterfall
[11:28] <Randomskk> too faint for decode
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[11:29] <number10> strange - decoding but not uploading
[11:30] <navrac> same as my problem - ive switched to vortex instead
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[11:31] <navrac> are you on fldigi 3.20.29 as well number 10?
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[11:31] <fsphil> are you guys using the new habitat version?
[11:32] <number10> doubt it fsphil
[11:32] <fsphil> is the bar turning green?
[11:32] <navrac> nope
[11:32] <navrac> stays white - got one green after a reboot then nada
[11:32] <number10> change pc - last pc run was not turning red or green
[11:32] <M0JCU> HelioSS stopped uploading for us as well. Bizarre
[11:33] <M0JCU> I would be grateful if anyone listening could keep the text logs of HelioSS and e-mail them to me after the flight. The data aren't recorded on board
[11:33] <M0JCU> Having difficulty with Vortex here. It's directly overhead in the null
[11:34] <fsphil> the checksum is lower case. not sure if that would have an effect
[11:34] <fsphil> although it it was uploading fine before
[11:34] <number10> - was receiving helious fine but not up loading - vortex signal a bit strange uploading
[11:35] <fsphil> so probably not
[11:35] <Randomskk> someone try running dl-fldigi from a console
[11:35] <navrac> vortex is fine here
[11:35] <Randomskk> it will spit out debug info
[11:35] <Randomskk> (perhaps)
[11:35] <gonzo_> think I can just start to see the telem in waterfall, but the rx AF is not routed to the pc, so can't decode till I get home again!
[11:35] <Randomskk> anyone have a dial freq for either?
[11:35] <fsphil> can someone record a sample of of vortex
[11:35] <fsphil> -of
[11:35] <navrac> 434.076 for vortex
[11:36] <gonzo_> think Im seeing tones at 434.6535/6540
[11:36] <on5rz> 400 HZ /
[11:36] <on5rz> 400HZ , / 50BD : 8n1 , _ HEAR IT _ CAN4T DECODE IT
[11:37] <on5rz> oeps. sy
[11:37] <UpuWork> hi
[11:37] <UpuWork> I have Helios
[11:37] <UpuWork> and srtings are coming in fine
[11:37] <UpuWork> but its not decoding
[11:38] <Randomskk> UpuWork: not trying to upload either?
[11:38] <UpuWork> nope
[11:38] <Randomskk> strings look like what?
[11:38] <UpuWork> $$HelioSS,0587,11:38:10,051.65622,-001.04394,12664,05,3,-12.1,-24.5,,24.5,-24.1,-24.0,-22.7,-13.8,170.8*a823
[11:38] <UpuWork> $$HelioSS,0588,11:38:14,051.65635,-001.04389,12682,09,3,-12.1,-24.3,-24.2,-24.1,-23.6,-22.3,-13.7,170.3*0f1b
[11:38] <UpuWork> $$HelioSS,0589,11:38:19,051.65634,-001.04386,12704,09,3,-12.0,-24.1,-24.3,-23.9,-23>6,-21.9,-13.5,169.7*54ca
[11:38] <UpuWork> $$HelioSS,0590,11:38:24,051.65649,-001.04375,12722,09,3,-12.1,-24.4,-24.5,-23.9,-23.8,-22.3,-13.5,169.2*04d5
[11:39] <navrac> the strings look good here - ut it just wont upload them
[11:39] <UpuWork> ditto
[11:39] <Morseman> Why is the screen showing "Out of Range" when I try swapping to the other PC on the KVM I wonder?
[11:39] <Laurenceb> wrong checksum?
[11:40] <Randomskk> any debug output from dl-fldigi? (run in console)
[11:40] <UpuWork> sed#
[11:40] <UpuWork> sec
[11:40] <UpuWork> eating pizza :)
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[11:41] <Randomskk> it was working earlier?
[11:41] <UpuWork> is there a switch for debug ?
[11:41] <Randomskk> no, it should just print stuff to console
[11:41] <Randomskk> mine does anyway, but linux
[11:41] <UpuWork> windows
[11:41] <UpuWork> doesn't
[11:41] <Randomskk> weird
[11:42] <Randomskk> well that's annoying
[11:42] <fsphil> someone make a recording please :)
[11:42] <Randomskk> try configuring for another payload
[11:42] <Randomskk> also that
[11:42] <UpuWork> recording
[11:42] <fsphil> the checksum is fune
[11:42] <fsphil> fine
[11:42] <fsphil> although lower case
[11:42] <UpuWork> case sensitive ?
[11:42] <fsphil> but again the older ones that did work also where
[11:43] <UpuWork> am I uploading anything Randomskk ?
[11:43] <Randomskk> no
[11:43] <Randomskk> only vortex getting to server
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[11:44] <UpuWork> ok so why isn't it matching the document
[11:44] <UpuWork> and why did it work ?
[11:44] <Randomskk> yes, these are good questions
[11:44] <Randomskk> does it output a newline at the end of the sentence?
[11:44] <navrac> looks like it is
[11:45] <UpuWork> http://pastebin.com/zJ85nc8U
[11:45] <fsphil> there was a newline bug but that only affects the beta
[11:45] <UpuWork> oh
[11:45] <UpuWork> brb
[11:45] <fsphil> I'll try adding one manually
[11:46] <fsphil> added one of yours upu, worked fine
[11:46] <UpuWork> nope doesn't work in 3.20.29
[11:46] <fsphil> so the problem is in dl-fldigi
[11:46] <Randomskk> lol I just added one too
[11:46] <Randomskk> yea
[11:46] <Randomskk> looks like it
[11:46] <Randomskk> or potentially in the flight document
[11:46] <Randomskk> leading to a misconfigured dl-fldigi
[11:46] <fsphil> indeed. I can't check that atm
[11:46] <Randomskk> UpuWork: can you try autoconfiguring your dl-fldigi to another payload
[11:47] <Randomskk> then change the baud rate manually
[11:47] <Randomskk> e.g. vortex
[11:47] <NigeyMoby> wasn't me, I didn't touch it!
[11:47] <Laurenceb> coming up to cutdown?
[11:47] <UpuWork> 4.3m/s ascent on Helios
[11:48] <UpuWork> done Randomskk
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[11:48] <Randomskk> still can't decode vortex here
[11:48] <UpuWork> switched to Horus
[11:48] <UpuWork> thats 300 baud anyway]
[11:48] <on5rz> what is that audio bweep
[11:48] <M0JCU> oops
[11:48] <UpuWork> still decoding
[11:48] <on5rz> on vortex ?
[11:48] <M0JCU> The cutdown seems to be firing every few seconds
[11:48] <navrac> ooh vortex gone odd
[11:48] <UpuWork> burst ?
[11:49] <M0JCU> Cutdown has caused the thing to reboot
[11:49] <M0JCU> Hmmm
[11:49] <navrac> cut down - but cutdown repeating and dropping supply?
[11:49] <UpuWork> $$HelioSS,0728,11:49:07,051.68621,-000.99361,15394,09,3,-11.8,-20.7,-20.7,-20.2,-19.1,-18.3,-12.8,111.4*465c
[11:49] <UpuWork> if you want to upload fsphil
[11:49] <UpuWork> or if you want to tell me how to do it
[11:50] <UpuWork> personally I wouldn't let me within 10 miles of the database though
[11:50] <Randomskk> http://habitat.habhub.org/transition/ if you just put your callsign there
[11:50] <Randomskk> paste the string in the string box
[11:50] <Randomskk> ascii-stripped
[11:50] <UpuWork> ok
[11:50] <Randomskk> leave the other two boxes empty
[11:50] <Randomskk> and click GO
[11:50] <Randomskk> it should be ok
[11:50] <Randomskk> or metadata left as {} anyway
[11:51] <UpuWork> it works
[11:52] <Randomskk> how bizarre
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[11:52] <Randomskk> got an audio recording?
[11:52] <UpuWork> yes
[11:52] <UpuWork> sec
[11:52] andrew_apex (~androirc@ip-204-074.eduroam.soton.ac.uk) joined #highaltitude.
[11:52] <UpuWork> hang on need to do it again
[11:52] <UpuWork> it stopped
[11:53] <daveake> Definitely rebooting - count back to 1
[11:53] <Dutch-Mill> CQ Jijdaar
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[11:53] <Morseman> Sorted
[11:53] <UpuWork> http://dl.dropbox.com/u/63720513/capture.wav
[11:54] <Morseman> But Votex is being Jammed and Helios wont decode :-(
[11:54] <Morseman> Good sigs but wont pass checksum
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[11:54] <UpuWork> uploading manually
[11:54] <Morseman> not getting $$ on Helios here
[11:55] <Randomskk> uhm
[11:55] <Randomskk> so
[11:55] <Randomskk> my dl-fldigi seems to be ok
[11:55] <Randomskk> uploading from upu's audio just fine
[11:55] <UpuWork> wierd
[11:55] <Randomskk> incidentally nice signal UpuWork :P
[11:55] <UpuWork> thanks :)
[11:55] <navrac> vortex is back
[11:55] <Randomskk> but uhm, yea, that's really weird.
[11:56] <M0JCU> Vortex is alive
[11:56] <Morseman> Got to get Kate at 1pm and I'm now late !! BRB
[11:57] <UpuWork> thats coming in via the Audigy I installed the other day
[11:57] <navrac> err vortex is back but seems to be lost....
[11:57] <UpuWork> going to fire up the VM and see if it decodes via that
[11:57] <daveake> Must be on the end of one of those Rapier missles they've been practicing with
[11:58] <M0JCU> Vortex has lost the sign on the longitude
[11:58] <daveake> And says it's coming donw, but not sure I believe that
[11:59] <navrac> vortex was cut down at 15k wasnt it?
[11:59] <daveake> Thought that was the other one? I'm confused
[11:59] <navrac> interestingly spacnear doesnt seem to be updating
[11:59] <M0JCU> Vortex is on its way down
[11:59] <M0JCU> I am receiving
[11:59] <daveake> ok you#'re right
[11:59] <M0JCU> Helioss is still going up
[11:59] <daveake> yep. I'm with it now :-)
[11:59] <M0JCU> But Vortex has got confused with +/- longitude :(
[12:00] <daveake> Been busy fixing my antenna cable (mast-end plug was loose)
[12:01] <gonzo_> I assume that big flight was a missed sign in manual entry?
[12:01] <Randomskk> payload isn't transmitting the sign
[12:01] <Randomskk> manual entry still needs valid checksum
[12:01] <Randomskk> well. it is possible to do an even more manual entry without
[12:01] <Randomskk> but we're not doing that
[12:01] <gonzo_> rr
[12:02] <navrac> is it me or is spacenear not updating vortex?
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[12:02] <Randomskk> navrac: you're right
[12:02] <Randomskk> not any more
[12:02] <Randomskk> it just uploaded a bunch
[12:03] <navrac> stuck on 11:59 here - despite me uploading 12:03:30
[12:04] <Randomskk> 120347 just got uploaded
[12:04] <Randomskk> but I don't see it on the website
[12:04] <Randomskk> you're right
[12:04] <Randomskk> curious
[12:04] <Randomskk> what on earth is going on :P
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[12:05] <M0JCU> M0MDB is now uploading HelioSS??
[12:05] <navrac> logtail says its receiving and saving them o
[12:06] <number10> yes manually M0JCU
[12:06] <M0JCU> Thanks!!! Keep it up, please.
[12:07] <Randomskk> http://habitat.habhub.org/testing-web/demo.html is working, alternatively
[12:07] <M0JCU> We're off to find Vortex in a minute
[12:07] Nick change: number10 -> number10_M0MDB
[12:07] <UpuWork> hey I have a software request, it would be amazing if this program could upload strings itself
[12:07] <number10_M0MDB> will do M0JCU
[12:07] <Randomskk> that's a fantastwic idea UpuWork
[12:07] <Randomskk> will get right on it
[12:08] <UpuWork> why isn't that working thats really odd
[12:08] <UpuWork> I have about 40 mins then I need to go out
[12:08] <Randomskk> even odder that it's working on mine :/
[12:09] <UpuWork> any my VM isn't working the sound isn't going through to it for some reason
[12:11] <Randomskk> maybe spacenear.us's consistency checking stuff is stopping vortex updating
[12:11] <Randomskk> dunno why
[12:11] <Randomskk> http://habitat.habhub.org/testing-web/demo.html is still working
[12:11] <Dutch-Mill> Hi what's VOTREX's freq at the moment?
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[12:13] <on5rz> got perfect copy and crc on helios but it won't upload - strange
[12:13] <UpuWork> yeah something up with it on5rz
[12:14] <UpuWork> however go to http://habitat.habhub.org/transition/ put your call sign in an paste the string next to ASCII-Stripped
[12:15] <M0JCU> vortex is on 434077160
[12:15] <Dutch-Mill> Thankz
[12:16] <daveake> Cable fixed
[12:16] <UpuWork> oh
[12:16] <on5rz> idd - up ok
[12:16] <UpuWork> it just uploaded automatically
[12:16] <UpuWork> 1 string
[12:16] <navrac> eh uploading now
[12:16] <UpuWork> yup working now
[12:17] <UpuWork> Randomskk ?
[12:17] <M0JCU> Vortex longitude fixed itself. Sign software bug
[12:17] <Randomskk> ...bizarre
[12:17] <UpuWork> done nothing ?
[12:17] <UpuWork> lol
[12:17] <Randomskk> nope
[12:17] <UpuWork> yup check space near us
[12:17] <UpuWork> that could do with diagnosing :/
[12:18] <Dutch-Mill> I'm @golbaltuner Amsterdam...nothing out here..whats up with VORTEX?
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[12:18] <number10_M0MDB> mm be nice to have it fixed for sunday :)
[12:18] <UpuWork> phew was getting RSI from ctrl+c ctrl+v
[12:18] <UpuWork> another reason for hating 300 baud :)
[12:19] <Randomskk> hehe
[12:19] <number10_M0MDB> helois just uploaded one on fldigi
[12:19] <UpuWork> seems to be working now
[12:19] <M0JCU> Any reason why Vortex isn't appearing on the tracker?
[12:19] <M0JCU> position is good now
[12:20] <daveake> maybe because the sentence counter reset?
[12:20] <navrac> is it just me are the tx gaps in helioss are longer than they were?
[12:20] <M0JCU> That could be it
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[12:21] <fsphil> are there any pauses during the string?
[12:21] <M0JCU> off to find vortex
[12:21] <navrac> no but the pauses between strings seem longr to me
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[12:26] <andrew_apex> right - I'm ready to track!
[12:26] <andrew_apex> any dial frequencies?
[12:27] <andrew_apex> (or status reports)
[12:28] Graham_G3VZV (b01a0406@gateway/web/freenode/ip.176.26.4.6) joined #highaltitude.
[12:29] <andrew_apex> anything?
[12:29] <Graham_G3VZV> is wondering why vortex is not being uploaded to the tracker
[12:29] <UpuWork> hey andrew_apex
[12:29] <andrew_apex> hi UpuWork
[12:29] <UpuWork> we've been having some wierdness
[12:29] <UpuWork> with uploading
[12:30] <andrew_apex> I've been following irc :P
[12:30] <UpuWork> ah ok
[12:30] <andrew_apex> does anyone know a dial freq? I can't hear anything scanning quickly
[12:30] <UpuWork> sec
[12:30] <UpuWork> HAMlib's died too
[12:30] <UpuWork> 434.650.700
[12:30] <UpuWork> = helioss
[12:32] <andrew_apex> Perfect decoing
[12:32] <andrew_apex> thanks Upu
[12:32] <Graham_G3VZV> vortex 437.076.9 vortex also perfect decoding
[12:32] <andrew_apex> I'll go up into the roof and disconnect the preamp in a bit and see what differnce it makes
[12:34] <UpuWork> right I have to go
[12:34] <UpuWork> I'll leave the radio on
[12:35] <Laurenceb> wow vortex has a big chute
[12:37] <Randomskk> it's a chute testing mission aiui
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[12:44] <on5rz> helios is acting strange - turnign ?
[12:45] <Graham_G3VZV> more like burst
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[12:46] Nick change: [1]Nickle -> Nickle
[12:51] <on5rz> G-FCLB Thomas Cook at 5.8 km approaching ..
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[13:04] <navrac> helios is drifting too fast for the afc to keep up
[13:05] <fsphil> you can change the speed of afc in the rtty modem setup
[13:05] <navrac> its on fast
[13:05] vortex_recovery (1f6a0c56@gateway/web/freenode/ip.31.106.12.86) joined #highaltitude.
[13:05] <fsphil> ah
[13:05] <fsphil> that's bad!
[13:07] <vortex_recovery> anyone still on HelioSS??
[13:08] <andrew_apex> nope
[13:09] <Graham_G3VZV> yes
[13:09] <number10_M0MDB> cant decode here
[13:09] <navrac> no sorry last good partial at 5000 - can still see it but cant decode - its drifitnig too fast and getting weak
[13:09] <Graham_G3VZV> 4k metres
[13:09] <navrac> 3913
[13:10] <Graham_G3VZV> no drift now
[13:10] <navrac> but now too weak for me
[13:10] <Graham_G3VZV> s/n 15db - v good but no uploads dont understand why not!
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[13:11] <Graham_G3VZV> suddenly green now
[13:11] <daveake> yeah I got the same one
[13:12] <andrew_apex> Results from my preamp testing: http://i.imgur.com/e8Ykf.jpg
[13:12] <daveake> Good result!
[13:12] <Randomskk> is the last masthead+internal?
[13:12] <number10_M0MDB> andrew_apex: what preamp is it?
[13:13] <andrew_apex> http://g0mrf.com/432LNA.htm
[13:13] <andrew_apex> I can't remember if the internal preamp was in in the last one, but I think it wasn't
[13:13] <SpeedEvil> andrew_apex: nice!
[13:13] <vortex_recovery> any decodes, partial or otherwise on HelioSS would be good. I'd hate to loose HelioSS 2 as well as HelioSS 1!!!
[13:14] <navrac> is that the 435_1296 preamp kit?
[13:15] <Graham_G3VZV> 51.86160 0.88901 1515 metre
[13:15] <andrew_apex> navrac: that's the one
[13:15] <SpeedEvil> Graham_G3VZV: nice
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[13:16] <Graham_G3VZV> 1200 mtres getting weaker
[13:16] <Upuiphone> sat in a car dealer is Helioss still up ?
[13:16] <Graham_G3VZV> 990 metres
[13:17] <Graham_G3VZV> 631 metres
[13:17] <andrew_apex> Graham_G3VZV: awesome!
[13:17] <andrew_apex> http://dl.dropbox.com/u/11076252/2012-04-19%2012.59.19.jpg
[13:18] <Graham_G3VZV> 390 metres what the ground levela round there?
[13:18] <daveake> It's overtaken Vortex then!
[13:18] <Upuiphone> afternoon daveake
[13:18] <daveake> Afternoon iphoney
[13:18] <jdtanner> 85m at current position
[13:19] <Upuiphone> anything still up ?
[13:19] <daveake> Lost Vortex at 394m
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[13:19] <daveake> Last I got: $$VORTEX,0307,13:18:10,51.6961,0.844,394,10,5.77,31.,96520,1,R*8a7$$ORTEX,0#8,1#258::v<51.695 ,.84,3\,`6j6+
[13:20] <Graham_G3VZV> helioss final decode here 51.85739 0.89369 at 298 metres at 13:18:00
[13:20] <Graham_G3VZV> thats UTC:)
[13:20] <daveake> I see you're quite close :)
[13:20] <Upuiphone> nice and low did it land in daveakes back garden again !
[13:21] <daveake> :D No, not so close
[13:21] <jdtanner> 76m there
[13:21] <Upuiphone> spacenear.us not great on an iphone
[13:21] <Graham_G3VZV> 22kms from me
[13:21] <fsphil> it's not great on any phone
[13:22] <jdtanner> the land is pretty flat around there...
[13:22] <SpeedEvil> It works OK on my n900
[13:22] <fsphil> almost any phone
[13:22] <daveake> http://maps.google.co.uk/maps?q=51.6961,-0.8443&hl=en&sll=51.704906,-0.841827&sspn=0.812744,1.977539&t=m&z=16 is where I lost it
[13:22] <SpeedEvil> I wouldn't say great
[13:22] <daveake> 30-odd miles away
[13:23] <daveake> We use spacenear on Julie Galaxy Tab 10.1 in the chase car. It's ok but don't try scrolling
[13:23] <daveake> 's
[13:23] <Upuiphone> well it opens but scrolling and zooming in is a bit hut and miss
[13:23] <Upuiphone> hit
[13:23] <daveake> miss
[13:24] <Upuiphone> autocomplete is ship
[13:24] <jdtanner> is that gmaps link missing a minu sign?
[13:24] Nick change: number10_M0MDB -> number10
[13:24] <jdtanner> (ignore me)
[13:24] <daveake> no
[13:24] <daveake> :)
[13:25] <jdtanner> (getting mixed up between the two payloads)
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[13:29] <Graham_G3VZV> ground height at helioss landing is around 85m metres sorry its not my best direction for low elevations
[13:30] <SpeedEvil> 298 is quite low enough!
[13:30] <SpeedEvil> well - 200m AGL
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[13:35] <gonzo_> do you see what I see nead the vertex last posn?
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[13:36] <Graham_G3VZV> the skylon test site?
[13:36] <gonzo_> near
[13:37] <gonzo_> I was thinking of the pylons 100mtrs from the last posn
[13:37] <gonzo_> and last two reports being at the same alt
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[13:47] <SolarNRG> Guys, I think Skylon may use OF2 as its secret anti-freezing agent in teh Sabre's pre-cooler engines. Its highly reactive and has a melting point of -144 degrees C, combine this with ethylene and ethanol at no point until you reach oxygens liquidation state are there any gaps where water might solidify
[13:48] <gonzo_> add a slash of orange juice and it sounds like a hell of a drink!
[13:49] <MrScienceMan> how would you name it tho?
[13:49] <gonzo_> The Brain Freeze
[13:49] <daveake> All we need now is slice of lemon wrapped round a large gold brick
[13:50] <gonzo_> (Zaphod has copyright on the other name)
[13:50] <gonzo_> hehehe
[13:50] <gonzo_> great minds etc....
[13:50] <daveake> :D
[13:51] <fsphil> it's like you where both separated from the same body
[13:52] <daveake> If I'm only half a body, it's a good job I've been separated
[13:53] <gonzo_> I make up for it by years of pies
[13:56] <andrew_apex> is a TNC connector likely to be a SO239? http://www.ebay.co.uk/itm/N-Female-Tnc-Female-Adaptor-16-1104-/350557119821?pt=LH_DefaultDomain_3&hash=item519ed5254d
[13:57] <gonzo_> a TNC is basically a BNC but with a threaded collar, rather than a bayonet
[13:57] <Morseman> No SO239 and TNC are very different connectors
[13:57] <Elmar_PD3EM> like http://www.tech-faq.com/tnc-connectors.html
[13:57] <andrew_apex> aww...
[13:58] <andrew_apex> okay, to keep looking :)
[13:58] <Morseman> If you want N to PL then Maplins do them...
[13:59] <Morseman> Which way round do you need?
[13:59] <gonzo_> (the PL/SO hardly class as a connector!)
[13:59] <andrew_apex> is that PL or SO? I'm after SO and don't want too much loss
[13:59] <Morseman> PL = Plug
[13:59] <andrew_apex> I'm after N female-SO239
[13:59] <gonzo_> PL259 is the plug
[13:59] <gonzo_> SO239 is the socket
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[13:59] <Morseman> So female/Female then?
[13:59] <andrew_apex> yup
[14:00] <Morseman> That's more unusual...
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[14:00] <andrew_apex> It's looking like I'll have to go N female - Pl then SO - SO
[14:01] <gonzo_> that's one way
[14:01] <Morseman> That's even more losses though
[14:01] <gonzo_> or SO239-Nm then Nf-Nf
[14:01] <andrew_apex> yeah
[14:01] <andrew_apex> that's a bit less lossy :)
[14:01] <mfa298> can you not just replace what's on whatever you don't like. Lower Loss.
[14:02] <andrew_apex> this is so I can swap out the preamp with a stright-through adaptor when I want to tx
[14:02] <Morseman> Cant you put a different plug or socket onto one or other end?
[14:02] <gonzo_> is this between the ant and preamp?
[14:03] <andrew_apex> this is when I don't want the preamp - the (very hard to unscrew) cable from the aerial to the preamp ends with a N male
[14:03] <Morseman> Get a TNC Plug for thend of the coax...
[14:03] <mfa298> I think you can get SO239 to either type of N (at least I thought I had both types). I might need to check what's in my box later.
[14:03] <Morseman> Sorry... N-Type plug...
[14:03] <gonzo_> in reality, you will probably hardly be able to notice the losses from the connector
[14:03] <andrew_apex> actually this is mainly for 2m stuff, so loss isn't as much of an issue than when receiving 433
[14:04] <Morseman> I find N-Types better than PL239 every time
[14:04] <gonzo_> chains of them, then they add up, but one adaptor in there is hardly going to be noticeable
[14:04] <Morseman> or even PL259 !!
[14:04] <andrew_apex> Yeah. Morseman - N's are grwat :)
[14:04] <andrew_apex> and great, too
[14:05] <gonzo_> I use them at HF too, as all my system is N type
[14:05] <gonzo_> mechanically the PL/SO are very poor
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[14:06] <Morseman> You can get better PL259s which are more like the N-Type in the way you make off the cable into them
[14:06] <andrew_apex> The clamp ones are much better than the cheap screw types
[14:06] <Morseman> Problem is the TS2000 has N-type on 70cm and SO239 on 2M port here
[14:06] Action: SpeedEvil looks at his box of belling-lee connectors.
[14:07] <SolarNRG> Could you microwave tins of beans and use that as a pulse detonation engine if you had enough tins of beans and enough microwave energy?
[14:07] <Darkside> SpeedEvil: oh man
[14:07] <Morseman> and a dual band colinear with one cable...
[14:07] <andrew_apex> that's a pain
[14:07] <Darkside> SpeedEvil: theres a bunch of equipment at uni with those
[14:07] <andrew_apex> do you just have to reconnect when you switch band?
[14:08] <Darkside> Morseman: duplexer!
[14:08] <mfa298> Morseman: Duplexer / Triplexer solves that.
[14:08] <Morseman> Even *more* losses...
[14:09] <Darkside> Morseman: depends on the diplexer
[14:09] <Morseman> All of them have losses...
[14:09] <mfa298> although I get annoyed as my Triplexer has an so239 on the output.
[14:09] <Darkside> i've built one with about 0.3dB insertion loss
[14:09] <Morseman> I just plug and unplug
[14:09] <Darkside> Morseman: get a switch
[14:09] <mfa298> depends what you're after. I've mostly used it for voice comms into a GP15 up high so the loss isn't too bad.
[14:09] <Darkside> and stop stressing about 0.5dB of loss
[14:10] <Morseman> Plan is N-Type plug and a adapter on the 2M port - being the less prone to losses port
[14:10] <Morseman> Switch! Now we *are* talking losses!!!
[14:11] <Darkside> Morseman: srsly. you might loose 0.5dB
[14:11] <Darkside> its going to be better than destroying your connectors due to constant unplugging and plugging
[14:11] <Morseman> Relay might be a bit better - if a proper 50 ohm impedance type
[14:11] <mfa298> although when trying mobile HAB with andrew_apex. I did wonder if the duplexer/triplexer might have helped when we also have inter car comms on 2m.
[14:11] <daveake> I daren't mention what's on my antenna cable :p
[14:11] <Darkside> just get a bloody duplever and be done with it
[14:11] <daveake> Well, was on till it broke and I replaced it
[14:11] <mfa298> whenever I keyed up on 2m it wiped out the baloon
[14:12] <andrew_apex> ah yes - inter car 2m, APRS and typing to rx a balloon aren't a good combo :P
[14:12] <Morseman> 3rd harmonic...
[14:12] <Morseman> and sheer RF blanketing
[14:12] <gonzo_> I've used diplexers as filters to stop the desense on cross band
[14:12] <Morseman> Even if not harmonically related it can just blank out the incoming signal by sheer amount of energy
[14:12] <andrew_apex> on one of the university minibuses, transmitting on 2m wipes out the fm radio
[14:12] <mfa298> thought was duplexer/triplexer on the ic7000 recieving the HAB might have acted as a decent filter (of course a 70cm bandpass would be better)
[14:13] <gonzo_> diplexer ised as a LPF on the 2mtr tx and as a BPF/HPF on the 70cm rx
[14:13] <Morseman> That's why living next to a pager site can be a right PITA
[14:13] <gonzo_> worked well
[14:13] <Darkside> we have great fun with our voice repeater payloads
[14:14] <Darkside> we had desense issues last flight, as the aprs payload was giving us grief
[14:14] <Morseman> Flying large copper tubes as filters could be a bit of a problem Darkside...
[14:14] <Darkside> but we think we've sorted it out for the next time we fly it
[14:14] <gonzo_> my amsat system has 100W tx on 2mtrs and rx ant on 70cm is only 6ft away
[14:14] <Darkside> Morseman: yeah... :P
[14:14] <Darkside> Morseman: its a crossband repeater
[14:14] <Darkside> 70cm in, 2m down
[14:15] <Morseman> That's not quite as bad as in band...
[14:15] <Darkside> but it needs better input filtering
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[14:15] <Darkside> we also have a few wavelength separation on the 2 antennas
[14:15] <Darkside> even with the desense it worked pretty damn well last flight
[14:15] <Darkside> had 44 unique callsigns access it
[14:16] <gonzo_> also hanging the ants below eachother so they are in eachothers null
[14:16] <Darkside> yep
[14:16] <Laurenceb> ANU5 ?
[14:16] <Darkside> we were using slim jims
[14:16] <gonzo_> bad choice of callsign!
[14:17] <gonzo_> they are just half wave ants, so should have same pattern as a dipole
[14:17] <gonzo_> (in ideal world)
[14:17] <Darkside> gonzo_: http://vimeo.com/40771342
[14:18] <gonzo_> ta, will save that till later. At work at mo
[14:21] <Morseman> Better go and do a bit more before the bank hol w/e - Back later I hope
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[14:23] <Wouter-[pa3weg]> looks like I missed all the FUN over a long meeting
[14:23] <Wouter-[pa3weg]> anything still going up?
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[14:33] <daveake> That's it till tomorrow
[14:34] <andrew_apex> what's going up tomorrow?
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[14:35] <daveake> HOWEST
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[14:36] <daveake> & FALCON. Early in the afternoon I think
[14:36] <daveake> Then we have a mass launch bright and early on Sunday morning :p
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[14:37] Nick change: [1]Nickle -> Nickle
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[14:41] <gonzo_> hmm, just realised how stupid my earlier comments were about vortex and the pylons. Forgot to swap the sign over on the long!
[14:42] <daveake> :D
[14:42] <daveake> I thought it was my eyesight :p
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[15:00] <Upu> afternoon
[15:03] <number10> afternoon
[15:04] <daveake> afternoon
[15:04] <daveake> funcube dongle now running on my netbook in case it's needed on Sunday
[15:05] <daveake> gas cylinder safely* back in the car
[15:05] <daveake> *relative term
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[15:06] <number10> all you payload buit daveake ?
[15:06] <number10> _r _s
[15:07] <daveake> yes
[15:07] <daveake> -y -e -s +n +o
[15:07] <number10> lol
[15:07] <number10> both pink?
[15:08] <daveake> Will be
[15:08] <daveake> One is
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[15:10] <Upu> meh
[15:10] <daveake> What's the new pink then?
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[15:11] <number10> I realised I have too much yellow on my one, when I drove to waork yesterday and noticed all the rape fields in flower
[15:13] <daveake> bad planning there
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[16:17] <M0JCU> Vortex and HelioSS both recovered. Thanks to everyone who helped.
[16:18] <M0JCU> Special thanks to G3VZV-1 who tracked HelioSS close to the ground. Otherwise we wouldn't have stood a chance.
[16:18] <daveake> good news!
[16:19] <M0JCU> Just need to look at the data now and work out why HelioSS came down like a brick
[16:19] <Graham_G3VZV> M0JCU - great to know the recovery was successful - just pleased i was able to get back home in time to assist!
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[16:24] <Morseman> Good to hear both balloons recovered
[16:24] <Morseman> I couldn't get a good decode on the 300 baud RTTY again - wonder if it's something wrong with my setup?
[16:25] <Morseman> Was the chirping noise interference or something transmitted by Vortex?
[16:32] <M0JCU> Something really weird happened with Helioss. Everyone seemed to be getting good strings but they wouldn't upload.
[16:33] <M0JCU> I didn't notice anything wrong with Vortex other than the longitude cock-up and the fading because it was directly overhead.
[16:33] <M0JCU> Time to head for home and look at the data!
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[17:55] <gb73d> http://www.panarmenian.net/eng/news/106076/
[17:56] <gb73d> how could He balloons explode ? they must have used H
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[18:01] <SpeedEvil> Fusion.
[18:03] <gb73d> http://news.am/eng/news/104152.html
[18:04] <gb73d> bits of balloon everywhere but no fires
[18:04] <gb73d> prolly blast injuries then from balloons bursting
[18:05] <Randomskk> SpeedEvil: ha ha
[18:05] <jdtanner> Evening all&having a bit f trouble selecting a mains adaptor for my new (old) FT790R&sorry if you helped me yesterday with this :(
[18:06] <jdtanner> The problem is&I'm not sure what to get if I want to be independent of batteries
[18:07] <gonzo_> don't forget to remove any non rechargable batts when on mains, as it will try charging them
[18:08] <gonzo_> (actually, did those old rigs have a separate charger?)
[18:08] <gonzo_> been a while since I had one
[18:08] <jdtanner> Yes, there is a separate charger input
[18:09] <jdtanner> dang&got to go out&I'll be asking again later no doubt :P
[18:09] <daveake> jdtanner The adapter has to have negative connected to the pin of the power plug
[18:09] <jdtanner> Yes, do you know what voltage/current?
[18:10] <daveake> That's unusual - almost all adapters are the reverse
[18:10] <jdtanner> yeah, the chap who sold it said to be wary
[18:10] <daveake> I used a 9V unregulated giving about 12V or so
[18:10] <daveake> Or a 12V regulated
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[18:11] <jdtanner> Any soecifi current?
[18:11] <daveake> Don't go much higher - the caps inside are 16V max, and one of mine blew (through old age or previous abuse!)
[18:11] <jdtanner> &specific :)
[18:11] <daveake> Not sure about current. I only use mine as a receiver and it doesn't use much
[18:11] <jdtanner> WONKY FINGERS TONIGHT
[18:11] <jdtanner> GREAT THANKS
[18:11] <jdtanner> sorry for the caps
[18:11] <daveake> NO PROBLEM
[18:11] <jdtanner> :D
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[18:15] <fsphil> I heard that downstairs
[18:16] <daveake> Does anyone know of an Android app that simply shows distance and direction from where you are to a GPS location? Something that doesn't need an online connection for maps or anything.
[18:17] <Dan-K2VOL> I know an iphone app, if you have one of those handy
[18:17] <daveake> nope
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[18:17] <daveake> What's the name? I can google for "android app like xxxx"
[18:18] <Randomskk> daveake: ham gps
[18:18] Nick change: jdtanner_ -> jdtanner
[18:18] <Randomskk> or search 'hamgps'
[18:18] <daveake> ta
[18:18] <Dan-K2VOL> iphone app is "compass go", but the android app of the same name doesn't look to have heading/range functions
[18:18] <Dan-K2VOL> to a target
[18:18] <daveake> All the ones I've got tell you where you are or have been
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[18:19] <daveake> TVM both will investigate
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[18:24] <daveake> Have installed hamgps ... exactly what I wanted, cheers :)
[18:24] <Randomskk> you're welcome!
[18:25] <daveake> Spent a while earlier searching for something without luck
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[19:00] <nosebleedkt> Yo all
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[19:01] <nosebleedkt> Does anyone have a picture to show me how you connect the payload with the cord to the parachute?
[19:04] <daveake> Specifically how the payload attaches?
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[19:08] <nosebleedkt> ehm yeah why not
[19:08] <nosebleedkt> i just want to get some ideas or learn some trick
[19:10] <daveake> Well, if the payload is a box, you can make 2 loops of cord or strapping, loop them round the payload near the edges and tape over with plenty of duct tape. Then join them together with a knot or through a ring. Then add a line from there to the parachute cords
[19:11] <nosebleedkt> daveake https://fbcdn-sphotos-a.akamaihd.net/hphotos-ak-ash3/536445_442053282475388_259791880701530_1844901_979695133_n.jpg
[19:12] <daveake> there you go - a box
[19:13] <nosebleedkt> however i dont really understand your english... do you have time to draw something ? :p
[19:15] <daveake> like this http://www.flickr.com/photos/daveake/6824993091/in/set-72157629187109165
[19:15] <smrtz> daveake: my local AR club doesn't think they have any gear that will work... can I borrow yours? I'll pay for postage? haha.
[19:15] <jonsowman> lol ed
[19:15] <smrtz> (jk)
[19:16] <nosebleedkt> oh nice!!!!!!
[19:16] <nosebleedkt> thats exactly what i thought man
[19:16] <nosebleedkt> daveake did it work well?
[19:17] <daveake> Apart from landing in the sea, yes
[19:17] <nosebleedkt> :)
[19:17] <nosebleedkt> man is this UK ?
[19:17] <nosebleedkt> the region in the pic
[19:17] <daveake> yes
[19:17] <smrtz> did you ever recover it?
[19:18] <nosebleedkt> man this cloudy color of the sky will make me suffer if i ever move there
[19:18] <nosebleedkt> its like a ceiling made of concrete
[19:19] <smrtz> daveake: or did it not flote? I guess you wouldn't have had a chase boat...
[19:21] <daveake> yes, it floated, back to land. http://www.daveakerman.com/wp-content/uploads/2012/02/Back-To-Shore-1024x531.png
[19:21] <nosebleedkt> daveake: how much is the distance from the payload to the little antispin metal thing?
[19:22] <smrtz> oh wow, nice daveake
[19:22] <jonsowman> is that brighton
[19:22] <daveake> about half an Ed
[19:22] <jonsowman> i recognise that patch of land...
[19:22] <daveake> Shoreham-by-sea. Very near Brighton
[19:22] <jonsowman> heh, i work in shoreham :)
[19:22] <daveake> That was a lucky day :)
[19:23] <smrtz> what was the red ball with two small poles in it?
[19:23] <daveake> food here - http://www.daveakerman.com/wp-content/uploads/2012/02/Fish-and-chip-shop.png
[19:23] <daveake> Second, test tracker
[19:23] <smrtz> ahh, did it work?
[19:23] <daveake> Yes, till it got wet
[19:24] <smrtz> lol
[19:25] <griffonbot> Received email: Peter "=?windows-1252?Q?=5BUKHAS=5D_Re=3A_Howest_and_Falcon_launch_=96_Saturday_5_?=
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[20:05] <Upu> did Helioss get recovered ?
[20:11] <griffonbot> Received email: NickB "=?windows-1252?Q?=5BUKHAS=5D_Re=3A_Howest_and_Falcon_launch_=96_Saturday_5_?=
[20:12] <daveake> Yes
[20:12] <daveake> Both recovered
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[20:13] <Upu> excellent
[20:13] <Upu> who launched them and can I clear the tracker ?
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[20:17] <smrtz> on the side of the NTX2, it says "NBFM" does this stand for narrow band FM? And I trust that it's ssb, but it doesn't say anywhere..
[20:18] <smrtz> also, daveake, 14899m, nice!
[20:18] <Upu> narrow band FM
[20:18] <Upu> its not SSB
[20:18] <Upu> its an FM modules
[20:18] <Upu> but we make it do SSB
[20:18] <smrtz> ahh, ok, and that's in the code that you sent me? I was unaware that that was a software thing.
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[20:19] <Upu> well all we are doing is pulling the frequency of the module up and down
[20:20] <Upu> making an high and a low tone
[20:20] <smrtz> yeah, reading that now.
[20:20] <Upu> just amending the voltage on the pin
[20:20] <smrtz> ahh ok.
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[20:21] <Upu> the input voltage of the NTX2 = 3V which varies the frequency from 0-6000Hz
[20:21] <Upu> so 1Hz= 3/6000 = 0.0005v
[20:21] <Upu> so for 425Hz shift = 425* 0.0005
[20:22] <Upu> 0.2125 volts between high and low
[20:22] <smrtz> 425Hz? isn't it 434.xxMhz?
[20:23] <Upu> the center frequency (i.e turn the module on with nothing attached to it) is 434.075 or 434.605
[20:23] <Upu> but that will generally be pulled down
[20:23] <Upu> so you will find it runs at say 434.074
[20:23] <Upu> the shift is the difference between the high and low tones
[20:23] <smrtz> ahh, so were using something a bit less than that, and it varies? or is it a standerd mesure?
[20:24] <Upu> varies
[20:24] <smrtz> ok, cool.
[20:24] <Upu> depends how you pull the voltage up and down
[20:24] <Upu> if you're very clever you could use a DAC chip
[20:24] <Upu> but most people use a resistor based voltage divider
[20:25] <smrtz> ok, cool. and thats also in the linking to an aurduino guide.
[20:25] <Upu> just be aware the input voltage is 3V on the NTX2 so if you're using an Arduino you need a bias resistor to bring it down to that (the 10k resistor)
[20:25] <smrtz> what was the other link you sent me? I lost it.
[20:25] <Upu> the NTX2 has an internal 100k resistor
[20:25] <Upu> which one was it ?
[20:26] <smrtz> I don't even remember. haha, ohwell.
[20:26] <Upu> I sent the UKHAS Wiki one
[20:26] <smrtz> ahh, right, I can just google that.
[20:26] <Upu> http://ukhas.org.uk/guides:linkingarduinotontx2
[20:26] <smrtz> but why is there an internal resistor? and thanks!
[20:27] <Upu> http://www.radiometrix.com/files/additional/ntx2nrx2.pdf see page 6
[20:28] <Upu> means you can use input voltages > 3V by using a bias resistor as you're creating a voltage divider
[20:28] <Upu> I think
[20:28] <Upu> someone correct me if I'm wrong
[20:28] <smrtz> ok. cool, thanks.
[20:28] <jdtanner> (sounds about right :) )
[20:28] <jdtanner> (evening btw)
[20:28] <Upu> (evening)
[20:29] <smrtz> the aurduino uno uses 5.5v right
[20:29] <Upu> 5V
[20:30] <smrtz> ok, then I could just use one of those, with a 68k resistor
[20:30] <Upu> 68k ?
[20:30] <smrtz> I think I'll stick to the mini pro though, and just take the 68k one out of the guide, and switch in a 10k like you said. save some money.
[20:31] <smrtz> yeah, its on page 6.
[20:31] <Upu> oh I see
[20:31] <Upu> use 10k
[20:31] <Upu> and the resistors in the guide
[20:31] <Upu> that data sheet is assuming you're doing FM etc
[20:32] <smrtz> ahh.
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[20:34] <griffonbot> Received email: Anthony Stirk "Re: [UKHAS] Launch Announcement: Friday 4th May - Chalgrove - Update"
[20:34] <smrtz> so 10k for a 5v arduino. and no resistor for the 3.3v?
[20:34] <Upu> well as the Wiki entry
[20:36] <smrtz> in the wiki its a 5v arduino, with a 10k resistor
[20:37] <jdtanner> smrtz: Which resistor are you talking about? R3?
[20:38] <smrtz> yeah, jdtanner.
[20:41] <Upu> with the 3.3V Arduino you can loose that 10K resistor (the bias one)
[20:41] <jdtanner> Not sure how your electronics are&but it might be worth having a read of http://blog.jgc.org/2011/01/calculating-rather-than-experimenting.html
[20:42] <smrtz> cool, thanks Upu, and jdtanner I'll check it out.,
[20:42] <jdtanner> an http://blog.jgc.org/2011/01/gaga-1-flight-computer-radios-first.html
[20:42] <jdtanner> These are very useful, as well as having a good read about voltage dividers
[20:42] <jdtanner> :)
[20:43] <Upu> yeah thats a good article
[20:44] <Upu> That shift corresponds to a difference in voltage on the TX pin of 0.255V
[20:44] <Upu> at least we agree :)
[20:44] <jdtanner> haha&true :)
[20:45] <Upu> his RTTY code is tidy too
[20:45] <jdtanner> The only difference is that there down't appear to be a bias in that article&might be a bit confusing
[20:46] <Upu> yeah it might work
[20:46] <Upu> wire it and check the voltages with a meter
[20:46] <jonsowman> shame the AVR doesn't have a DAC
[20:46] <jonsowman> would make this a tonne easier
[20:47] <Upu> I got some samples from TI
[20:47] <Upu> not done anything with them yet but they didn't look too complex
[20:47] <jonsowman> they're easy enough
[20:48] <smrtz> ok, so I FM is frequency modulation, ssb is single-sideband modulation. what's the diffrence? is it the shift size?
[20:48] <jonsowman> SSB is a type of AM
[20:48] <Upu> AM = louder quieter
[20:48] <smrtz> uhh, what?
[20:49] <Upu> FM = frequency changes
[20:49] <smrtz> oh
[20:49] <smrtz> thats why the varying voltage changes the shift
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[20:49] <Upu> yep
[20:49] <smrtz> more power = more volume
[20:49] <jonsowman> if by volume you mean amplitude, then no
[20:50] <jonsowman> FM has constant amplitude
[20:50] <jonsowman> information is encoded in instantaneous frequency
[20:50] <smrtz> i thought ssb was its own thing. and volume such as loud?
[20:50] <Upu> http://en.wikipedia.org/wiki/Single-sideband_modulation
[20:51] <jonsowman> SSB is AM with suppressed carrier, and one sideband lopped off
[20:51] <jonsowman> hence "single sideband" :)
[20:51] <Upu> tbh its complicated
[20:51] <Upu> to quote Vic Reeves
[20:51] <Upu> "How does it work Bob"
[20:51] <Upu> "I don't know but it just does"
[20:51] <smrtz> lol, ok. I guess I should start reading.
[20:51] <Upu> woo woo
[20:56] <smrtz> whats the diffrence between amplitude and volume, as in loudness?
[20:57] <jonsowman> amplitude is the only one that has a defined technical meaning
[20:57] <smrtz> thanks
[20:59] <smrtz> and do you use LSB or USB?
[20:59] <jonsowman> most flights use USB
[20:59] <smrtz> is there a reason?
[20:59] <jonsowman> that comes from ham convention
[21:00] <smrtz> ok, so it's easier to recive?
[21:00] <jonsowman> traditionally LSB below 10MHz and USB above
[21:00] <jonsowman> no they're exactly the same
[21:00] <jonsowman> it makes no technical difference
[21:00] <smrtz> ok.
[21:01] <Upu> they are mirror images so if you get your wires the wrong way round switch your radio to LSB
[21:02] <smrtz> lol, interesting, or I could just fix the wires
[21:02] <jonsowman> as long as you and your listeners know what mode to use
[21:02] <jonsowman> it's not an issue
[21:02] <jonsowman> though as i say, most HAB flights are USB
[21:02] <smrtz> ahh
[21:03] <Upu> yup smrtz or hit "RV" in dl-fldigi
[21:03] <Upu> =reverse
[21:03] <Upu> my pictures are wrong on the wiki
[21:03] <Upu> it shows the radio on LSB as I had the wires wrong
[21:03] <Upu> I'll correct it one day
[21:03] <smrtz> the uks guide uses LSB, so I'll have to check that
[21:03] <smrtz> lol Upu, that explains that.
[21:04] <Upu> I'll correct that its confusing
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[21:06] <smrtz> ok, cool I think I have a better understanding of that now.
[21:09] <smrtz> any guides as to how to connect the GPS modual? UPu, I have the one of the level convertor I guess the pins line up the same on the mini pro?
[21:10] <Upu> http://ava.upuaut.net/store/wiki/doku.php?id=levelconvertor
[21:10] <Upu> very work in progress
[21:11] <Upu> that board isn't for sale yet
[21:12] <smrtz> yeah, thats the one I have now. everything works the same with the 3.3v arduino? RX still goes to pin 4? TX to 5?
[21:12] <Upu> if you're using software serial and thats what you've defined in the code yes
[21:13] <Upu> but be aware the uBlox modules aren't great with software serial
[21:13] <Upu> hence me dropping the baud rate to 4800 in the code
[21:14] <Upu> I do have code for using it with the hardware UART on the Arduino
[21:14] <Upu> but not put it on yet
[21:15] <smrtz> ok great, thanks for the help, you to jonsowman. and yeah, the ukhas arduino guide recomends a 50 or 300 baud. I'll probobly use 300, is that fast enough for real time transmissions?
[21:15] <jonsowman> 50 and 300 are both fine
[21:15] <jonsowman> you can't go much higher than that using narrowband FM RTTY
[21:15] <smrtz> awesome, thanks
[21:15] <Upu> start with 50
[21:15] <Upu> make that work first
[21:16] <smrtz> ok great, thanks
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[21:32] <junderwood> Upu, I launched them and please feel free to clear the tracker (21:13)
[21:33] <Upu> thanks
[21:33] <junderwood> Just saw the e-mail as well
[21:33] <Upu> glad you got it all back
[21:34] <junderwood> I must fix the schoolboy error on the Vortex longitude.
[21:34] <Upu> looked like some interesting experiments on there
[21:34] <junderwood> We're planning to fly it a couple more times in the next few weeks.
[21:34] <fsphil-laptop> any idea what happened the uploading/not uploading thing?
[21:34] <Upu> something was borked on the uploading but don't think it was your fault
[21:34] <Upu> can you change the call sign and checksum to all caps ?
[21:35] <junderwood> Not sure whether we will fly HelioSS again but Vortex - almost certainly.
[21:35] <junderwood> Will do.
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[21:36] <junderwood> HelioSS was a little disappointing. I was expecting some temperature differential on the different colours.
[21:36] <junderwood> And then the parachute got tied in an almighty knot (which I haven't yet untied)
[21:37] <junderwood> The HelioSS parachute was a prototype for one which landed on Titan about 7 years ago.
[21:37] <fsphil-laptop> how old is it?
[21:38] <junderwood> Built for a wind tunnel test (which I did) 20 years ago :)
[21:39] <fsphil-laptop> excellent!
[21:39] <junderwood> Shame it ended up in a knot.
[21:40] <junderwood> Got some good photos of the plumet to earth from HelioSS. I will try to post some over the weekend.
[21:40] <junderwood> Also got end to end HD video from Vortex.
[21:40] <junderwood> And probably lots of data but I still have to check
[21:41] <fsphil-laptop> HD video is on my todo list
[21:41] <junderwood> We flew a ReplayXD. Nice camera and weighs next to nothing
[21:42] <junderwood> ... was pointing upwards, though. Lots of nice parachute photos :)
[21:42] <fsphil-laptop> well if you've got a nice parachute, best to get some photos of it in action :)
[21:44] <junderwood> Need to look at the video and data to see if we learned anything
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[22:19] <Laurenceb_> http://makerfairederby.wordpress.com/
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[22:32] <jdtanner> that looks pretty good
[22:34] <Laurenceb_> just a few street away from me :P
[22:35] <SpeedEvil> neat
[22:35] <russss> there's also http://makerfairemanchester.com/ in july
[22:35] <russss> I can't go to Derby, I'm at a wedding
[22:43] <Laurenceb_> first time anything happened in derby
[22:45] <jdtanner> haha :)
[22:48] <jdtanner> Sorry to ask again peeps&but does anyone know of a suitable power supply for an FT790R?
[22:49] <jdtanner> I'm concerned about getting a power supply that has the correct current...
[22:50] <SpeedEvil> jdtanner: When you sit on a table that can support 500 kilos, do you weigh 500 kilos?
[22:53] <jdtanner> True, but I'm concerned that I don't know if I weigh 510kg
[22:53] <jdtanner> ;)
[22:54] <fsphil-laptop> it's a low power radio
[22:54] <jdtanner> I'm just dilly dallying as I don't want to pop the radio given that its the only one we could find/afford
[22:54] <fsphil-laptop> you're not going to stress your psu unless it's tiny
[22:54] <fsphil-laptop> but I'm the same, I've only used batteries in mine so far
[22:55] <jdtanner> Well, that might be the safest way forward. TBH, I hate electricity&always have&so the prospect of blowing up a radio petrifies me :)
[22:56] <SpeedEvil> jdtanner: The circuit determines what current it draws from the supply - like your weight determines how much the table supports
[22:56] <fsphil-laptop> I don't like mains electricity
[22:56] <fsphil-laptop> that stuff scares me :)
[22:57] Action: SpeedEvil was pondering a 11kVac battery charger.
[22:57] <SpeedEvil> For UAVs.
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[22:57] <jdtanner> Now that is scary.
[22:58] <jdtanner> The problem is I want to get a supply that will be able to provide the necessary current&but cheaply :) I'm a northerner afterall
[23:00] <jdtanner> Also, I'm presuming that if I supply 12V instead of 13.8V it will still work.
[23:01] <fsphil-laptop> yes
[23:01] <SpeedEvil> There were a couple of supplied linked last night
[23:01] <SpeedEvil> A PC power supply will work.
[23:01] <jdtanner> I missed them I think&stupid broadband
[23:01] <SpeedEvil> - but may be very noisy
[23:02] <jdtanner> I'll look though the logs. I was just wondering what everyone else was using&but the answer seems to be batteries :)
[23:03] <SpeedEvil> In short - any 12-13.8V power supply - regulated - of over 4A or so should work - maybe less current if you only transmit on low power, or don't transmit at all
[23:03] <jdtanner> Brill, I wont be Tx'ing for a while
[23:04] <jdtanner> Thanks all
[23:06] <jdtanner> Righty ho&off to bed to dream about c-cell batteries and buggy arduino code :P
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[23:06] <fsphil-laptop> lol
[23:06] <fsphil-laptop> nite!
[23:06] <jdtanner> nite
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[00:00] --- Sat May 5 2012