highaltitude.log.20141101

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[00:00] <mfa298> day: this is an example of a dipole with an ugly balun http://m1ari.co.uk/antenna/diy-dipole
[00:02] <mfa298> it's two metal rods (gap between them inside the tube) and the coax inner goes to one side and the braid to the other side.
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[00:12] <day> mfa298: so it just extends the outershield into a wire which obviously only has one surface to carry the signal?
[00:12] <day> the winding creates a stabilizing inductor?
[00:28] <Darkside> i take it you have expewrience with power electronics, but not so much with RF?
[00:35] <Lunar_Lander> good night!
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[00:42] <day> Darkside: nah not really. I just tnever touched RF
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[00:59] <Ian_> Hi Darkside: the original diagram posted by 'day' was of a dipole with the classic dog bone central insulator (not isolator). Why don't circuit dagrams show nuts and bolts . . . Argh. :)
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[03:13] <SpacenearUS> New position from 03VK2HAB-11 after 03a day silence - 12http://habhub.org/mt/?focus=VK2HAB-11
[03:28] <SpacenearUS> New position from 03vk2hab_chase after 03a day silence - 12http://habhub.org/mt/?focus=vk2hab_chase
[03:30] <DL7AD_> !hysplit B-64
[03:30] <SpacenearUS> 03DL7AD_: HYSPLIT for 03B-64 - 12http://spacenear.us/tracker/hysplit_cache/141031-22_123304_B64.gif
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[06:33] <joeman> hello
[06:33] <joeman> Just to let you know...
[06:33] <joeman> Spot Messenger did work when the HAB I did today came back down under 6,500 metres
[06:33] <joeman> the last several points are all at the same lat/long
[06:34] <joeman> So it survived an up/down
[06:34] <joeman> unfortunately...it has landed inthe middle of absolutely no where
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[06:34] <joeman> so need to hike out over terrible country to retrieve it
[06:37] <jededu> EDUPIC7 still going :)
[06:38] <ulfr> Hi
[06:38] <jededu> Morning
[06:38] <ulfr> Looks like you'll have some adventure soon then. ;)
[06:41] <SA6BSS-Mike> jepp, nice and strong :)
[06:41] <joeman> yes
[06:41] <joeman> 7km hike into wilderness
[06:41] <joeman> then a 7km hike back
[06:42] <jededu> SA6BSS-Mike is the sun up yet
[06:42] <SA6BSS-Mike> nop
[06:43] <jededu> Cool the battery volts should increase then
[06:43] <joeman> het
[06:43] <SA6BSS-Mike> well, its probably up but its cloudy
[06:43] <joeman> thisspot messenter did work above 6500metres!
[06:43] <joeman> nuts!
[06:44] <SA6BSS-Mike> give it another hour for the sun to realy come over the horizon
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[06:49] <ok1cdj> gm all
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[07:11] <jededu> Ahh warming
[07:14] <SA6BSS-Mike> hehe, temp curve going up :) http://x-f.lv/dev/habitat-graphs/payload/EDUPIC7#g/battery,temperature
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[07:16] <jededu> Is there a link to that page :)
[07:19] <jededu> From HABHUB
[07:22] <SpacenearUS> New vehicle on the map: 03VK3YT - 12http://habhub.org/mt/?focus=VK3YT
[07:22] <SA6BSS-Mike> dont think so, dont know where I picked up that link
[07:22] <SA6BSS-Mike> some linked it from irc in the past year and I put in my hab bookmark
[07:23] <jededu> Ok thanks
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[08:52] <jededu> Battery is dying I think
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[09:00] <SA6BSS-Mike> are you runnig a 1,5v to 1,8v converter?
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[09:02] <Upu> 3.3V SA6BSS-Mike
[09:02] <Upu> good effort though
[09:02] <SA6BSS-Mike> ok
[09:02] <SA6BSS-Mike> my 1.5 - 1,8v runns down to 0,8v before it drops of verry fast
[09:03] <SA6BSS-Mike> using lithium
[09:03] <SA6BSS-Mike> batt
[09:03] <Upu> yep
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[09:12] <jededu> Yes its a TPS61016 and it dous go down to 0.8, well it did while testing at room temp
[09:12] <jededu> With an AAA Energiser
[09:14] <SA6BSS-Mike> ok
[09:14] <jededu> But on this one I have removed the RTC so it doesent completly sleep
[09:15] <Upu> just an AAA ?
[09:15] <Upu> ok thats impressive then
[09:16] <jededu> Yep it draws 11ma instead of 6 while idle
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[09:35] <SA6BSS-Mike> hmm, why dont I get bearing, distance and son in dl-fldigi
[09:35] <SA6BSS-Mike> https://dl.dropboxusercontent.com/u/26543754/dl2.JPG
[09:36] <SA6BSS-Mike> *and so on
[09:37] <jededu> Is it still in the flights list, the flight doc expired
[09:38] <jededu> If it was select it and auto configure
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[09:48] <SA6BSS-Mike> It should present altitude, distance and allt the other settings without any flight doc I think
[09:49] <SA6BSS-Mike> I got the flight doc up from arcive, dont think it will be any differente
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[09:50] <joltz> just found out about HAB. I love what you're doing!
[09:52] <SA6BSS-Mike> jededu: heh, it worked, used the edupi7 from the archive and autoconfiure and now it works :)
[09:54] <jededu> <SA6BSS-Mike> :)
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[09:57] <Upu> morning joltz
[09:57] <Upu> hang about launches this morning]
[09:57] <joltz> morning
[09:57] <joltz> cool
[09:58] <joltz> this seems a very UK hobby so far?
[09:58] <Upu> no far from it
[09:58] <Upu> http://habitat.habhub.org/mobile-tracker/
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[10:00] <mfa298> joltz: a lot of us might be from the UK but a lot of other countries are represented as well.
[10:01] <mfa298> some places do things slightly differently so there's not always such a community from those countries
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[10:03] <joltz> oh dear. my ignorance is showing
[10:03] <joltz> I should have said... not much activity in the USA ;P
[10:03] <Upu> K/FORGIVE
[10:04] Last message repeated 1 time(s).
[10:04] <mfa298> there's a fair number of groups in the USA but most people use APRS
[10:04] <Upu> oops
[10:04] <Upu> keyboard macro for BF4 :)
[10:04] <mfa298> and a few USA people around in here (if they're awake)
[10:04] <joltz> i've picked that up with the USB TV radio
[10:06] <joltz> cool stuff
[10:08] <mfa298> one of the UK balloons has just gone accross part of the USA
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[10:08] <joltz> the silverstone? an article about that brought me here
[10:09] <joltz> it actually passed very near to me but I didn't know about it then
[10:09] <mfa298> B-64, launched from silverstone, UK in July and hasn't stopped yet
[10:10] <joltz> any idea when it will stop? and is this some kind of record? :D
[10:12] <jededu> 0.86v nearly there
[10:13] <SA6BSS-Mike> yeah, its going down fast now
[10:13] <edmoore> joltz, i's a duration record yep
[10:13] <edmoore> in our little amateur ballooning sphere anyway
[10:14] <mfa298> in theory the helium will be diffusing out of the balloon slowly so at some point it will lose its bouyancy, as to when that will happen, estimates have been made, and then passed.
[10:14] <SA6BSS-Mike> looks like edupic7 stoped transmitting.
[10:15] <jededu> Time for Solar :)
[10:17] <SA6BSS-Mike> indeed!!
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[10:22] <deano86> I guess we lose many payloads in the UK because we are a very small country?
[10:25] <LazyLeopard> ...surrounded by wet salty stuff.
[10:25] <deano86> thats the one lol
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[10:26] <edmoore> we lost a lot more before the predictor
[10:27] <deano86> can you predict its course before launch?
[10:29] <edmoore> yes
[10:29] <edmoore> http://predict.habhub.org/
[10:29] <deano86> I bet that has helped you guys a lot then!
[10:29] <edmoore> yes
[10:29] <deano86> how long have you been involved with HAB?
[10:30] <edmoore> more or less since it started in the uk
[10:30] <edmoore> 2006
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[10:34] <deano86> wow thats a while then
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[10:35] <deano86> the predictor is really good, how do you know where to launch from?
[10:35] <edmoore> the dropdown contains established launch sites
[10:35] <edmoore> if you have your own, just enter the coordinates in the boxes below
[10:35] <edmoore> to get your own, you apply for a NOTAM
[10:36] <edmoore> !wiki notam
[10:36] <SpacenearUS> 03edmoore: No results for your query
[10:36] <edmoore> sigh
[10:36] <deano86> yeah I did it from a local park as a test and at 12:00 it will end up in the sea lol
[10:36] <edmoore> !wiki permission
[10:36] <SpacenearUS> 03edmoore: No results for your query
[10:36] <edmoore> double sigh
[10:36] <deano86> wiki does not like you this morning then
[10:36] <edmoore> yes, you've got to keep an eye on the weather
[10:36] <craag> http://ukhas.org.uk/guides:guidelines
[10:37] <number10> http://ukhas.org.uk/general:restrictions_legality
[10:37] <deano86> but if you apply for permission 30 days in advance then you may have to cancel a few times before you get the launch you want
[10:37] <craag> number10s link is better :)
[10:38] <edmoore> deano86, yes
[10:39] <edmoore> part of the fun/annoyance
[10:39] <joltz> i wonder how the USA/FAA handle these things
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[10:40] <deano86> ahh ok so its a game of patience as well
[10:40] <edmoore> joltz, plenty of info online
[10:40] <edmoore> i believe under some mass restriction you needn't tell anyone, but ianal and ian-american
[10:40] <edmoore> so don't follow it closely
[10:41] Nick change: jasiek_ -> jasiek
[10:41] <edmoore> deano86, some sites have blanket notams
[10:41] <edmoore> so you can launch whenever
[10:41] Nick change: jasiek -> Guest2498
[10:42] <craag> (with the notam+site owners permission)
[10:43] <deano86> I guess churchill is one of those sites right?
[10:43] <craag> Yep, run by CUSF
[10:44] <craag> Elsworth is another, run by Steve Randall (Random Aerospace)
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[10:45] <DG9BFC_Sigi> hello all
[10:46] <deano86> so if I was to use one of those
[10:47] <deano86> I would still need permission?
[10:47] <Upu> from the operator of the site yes
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[10:48] <craag> The operator also has to be present.
[10:48] <deano86> ok, well that saves some hassle I guess
[10:50] <deano86> is this easy to arrange lol? I guess they have people there a lot launching their weather balloons?
[10:51] <craag> Depends if they're free. Email them and ask nicely :)
[10:51] <deano86> ah ok thank you :)
[10:52] <deano86> I would like to take video whilst I am up there, do you have any tips? If it lands in the sea for instance I am buggered :P
[10:53] <deano86> well the balloon is up ther
[10:53] <deano86> e
[10:53] <fsphil> unless you have a boat handy :)
[10:53] <craag> The predictor will help you avoid the sea in 95% of cases
[10:53] <deano86> hmm, no boat and I doubt I could swim that far
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[10:54] <edmoore> always go for a land landing
[10:54] <craag> Very very ocasionally the MET office mucks up, and so the prediction is wrong
[10:54] <edmoore> for video, any commercial video camera will be good
[10:54] <edmoore> gopro is popular
[10:54] <deano86> ok so the predictor is very accurate then. This is good
[10:54] <deano86> Yeah I was thinking gopro
[10:54] <edmoore> canon digital cameras have a software project called chdk that lets you write scripts to automaticallt take photos and video
[10:55] <deano86> via arduino/microcontroller?
[10:55] <craag> If you estimate the burst alt correctly, the predictor landing is often well within +-10km or so.
[10:55] <edmoore> deano86, no, standalone
[10:56] <deano86> ah ok well thats something to look into definately
[10:57] <deano86> I have an exam in December so I will be studying until then. I will probably launch my first balloon in late spring next year :)
[10:58] <craag> http://blog.jgc.org/2010/09/gaga-1-camera-hacking.html
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[11:00] <deano86> thank you craag :) thats really useful!
[11:02] <amell> 11am launch from elsworth is stil on? I cant see any sign from the payloads
[11:03] <amell> jcoxon: you still launching today?
[11:04] <craag> amell: He's onsite
[11:04] <craag> SO yes
[11:04] <DG9BFC_Sigi> the predictions are VERY accurate ... i am hunting weather balloons and use these predictions every day ... and the only part that is not 100% accurate is the wind on the ground (can be locally a bit different from prediction) ... and the "quality" of parachute (prediction course has to be compressed if parachute is tangled)
[11:05] <amell> what freq is the ukhas node? I will see if theres any life there
[11:05] <craag> 869.5 MHz
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[11:07] <amell> nope nothing on either. guess they must still be setting up
[11:08] <amell> !whereis b-64
[11:08] <SpacenearUS> 03amell: 03B-64 is over 03North Atlantic Ocean 10(29.8964,-77.8282) at 0312754 meters
[11:08] <craag> Only got there at 10:37
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[11:16] <amell> payload is on
[11:17] <SpacenearUS> New vehicle on the map: 03X0 - 12http://habhub.org/mt/?focus=X0
[11:17] <amell> lol. decoded X0 on the ground.
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[11:19] <amell> anyone else getting X0? solid greens here.
[11:20] <deano86> what freq is X0 on?
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[11:20] <amell> 434.072
[11:20] <craag> 61m altitude
[11:20] <craag> (still on the ground)
[11:20] <amell> needs a correction, its more like 10m altitude.
[11:21] <amell> distance 3.652km elevation 0.8
[11:21] <amell> i would pop over, but cant leave the house at the moment.
[11:25] <deano86> not getting a signal on websdr.suws.org.uk at the moment
[11:25] <amell> payload has been moved, its gone a lot quieter
[11:26] <mfa298> deano86: if it's still on the ground you probably wont as the earth gets in the way
[11:26] <deano86> ah well that explains it :)
[11:26] <edmoore> maybe it will be my friend
[11:26] <deano86> I shall be patient until it is in the air :P
[11:27] <amell> im off to do other stuff, just watch the altitude in snus so you know when its departed this earth
[11:27] <deano86> ok thank you
[11:28] <deano86> the path looks as though it is going to end up in the sea?
[11:28] <deano86> is that right?
[11:28] <amell> yes, disposable
[11:28] <deano86> ah so its more of a test?
[11:28] <amell> actually, i think they were trying for a float.
[11:28] <deano86> so someone has a boat lol
[11:29] <amell> so ignore the path, which means it will go on as long as the battery lasts
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[11:29] <deano86> oh ok
[11:29] <mfa298> I think there was going to be some discussion of whether to do a float or a burst flight. But unlikely to be recovered eitherway
[11:30] <mfa298> part of it is testing some things out from flight (so being in the air is the important bit)
[11:30] <craag> I think he's going for burst
[11:30] HB9RSU (~nothing@92-32-149-5.dyn.cable.fcom.ch) joined #highaltitude.
[11:30] <craag> last prediction he posted was 7 m/s ascent
[11:30] <craag> ( to get it as high as possible before it goes too far away)
[11:31] <amell> payload appears to be moving around slightly.
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[11:31] <amell> or someone keeps walking in front of it.
[11:31] <deano86> oh ok, I see. so the balloon pops quicker and prevents it going in to the sea right?
[11:31] <SpeedEvil> yes
[11:32] <deano86> that makes sense
[11:32] <SpeedEvil> With a known burst radius, and a known ascent speed, and a known descent speed, trajectory can be quite accurate - sometimes in the ~10km range from prediction at launch to landing spot
[11:32] <craag> It'll still end up in the sea
[11:33] <deano86> thats pretty accurate
[11:33] <SpeedEvil> 'can' -of course.
[11:33] <edmoore> it's often very much better during the flight too
[11:33] <SpeedEvil> indeed
[11:33] <craag> He knows he's going to lose this one.
[11:33] <edmoore> e.g. we've had occassions where we've made a prediction at burst - 30km up, and it's eventually landed within about 300m of the predicted spot
[11:33] <craag> But it's a test
[11:33] <deano86> the predictor also works on the mobile tracker as well
[11:34] <deano86> which is handy
[11:34] <SpeedEvil> And that's of great use - because at 30000m or whatever - you're in sight of most of england
[11:34] <amell> Watson X-50 isnt tuned for 868Mhz right?
[11:34] <SpeedEvil> (or scotland if you launch there)
[11:35] <amell> debating about trying the software decoder, but i dont think i have the antenna for this.
[11:35] <craag> amell: Might as well give it a go
[11:35] <craag> worst case - it doesn't work, meh
[11:36] <amell> cant see anything at 869.5 at the moment
[11:37] <craag> it'll only be sending a <0.5s packet every minute or so I think
[11:37] <craag> so a bit difficult to see!
[11:38] <amell> signal at 434 has gone faint
[11:38] <SpeedEvil> And yay - B64 celebrating its 16th week with a visit to Disneyland.
[11:38] <amell> still there though
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[11:41] <amell> cant decode this. i guess they maybe moved it from a table onto ground or something.
[11:41] <SpacenearUS> New vehicle on the map: 03G6GZH_chase - 12http://habhub.org/mt/?focus=G6GZH_chase
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[11:43] lepkirk (5ce8ad16@gateway/web/freenode/ip.92.232.173.22) joined #highaltitude.
[11:45] <SpeedEvil> It diddn't quite overfly the park grounds - but was ~200m from it
[11:46] <SpeedEvil> Then a couple of km from Oak Ridge.
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[11:50] <lepkirk> Hi Im currently putting together my first payload. Is there anyone here what could help me with a quick question?
[11:50] <Upu> just ask lepkirk
[11:51] <lepkirk> Im using the PITS board but want to use GSM tracking for redundancy and to increase chances of finding it once its back down. I read about Dave Akerman using an old nokia phone to send SMS messages that are already formatted according to the UKHAS protocol for habitat to add to the stream of radio received telemetry signals. I would like to do something similar but instead of taking apart an old phone and getting the Pi
[11:51] <lepkirk> Ive tethered an old android phone to the Pi to give the Pi internet access. The tethering and internet access working fine. My question is& how do I send the telemetry strings to the habitat server directly from the Pi? Is there an API or something I can use to connect to the server and send telemetry?
[11:51] <Upu> good question
[11:52] <Upu> I know Dave ran a seperate phone for it a while ago
[11:52] <Upu> ping daveake
[11:52] <mikestir> it's probably worth bearing in mind that getting an internet connection is way less likely than being able to get a text through
[11:53] <MarkIreland> http://www.stratodean.co.uk/2013/01/backup-tracker-just-in-case.html lepkirk
[11:53] <mikestir> which as already only about 50% likely
[11:53] <Upu> you can upload directly to habhub
[11:53] <SpeedEvil> lepkirk: run dl-fldigi onthe pi
[11:53] <Upu> if you have interwebs
[11:53] <SpeedEvil> job done
[11:53] <Upu> but text message may be a better idea
[11:54] <SpeedEvil> Indeed - texts can work more reliably in dodgy signal areas
[11:54] <lepkirk> yeah i thought internet maybe less reliable than SMS but i'd like to experiment with it anyway and maybe use an app to send GPS via SMS also then compare
[11:55] pnephos (~pnephos@95.Red-83-60-204.dynamicIP.rima-tde.net) joined #highaltitude.
[11:55] <Upu> http://habitat.readthedocs.org/en/latest/
[11:57] <lepkirk> I will look into installing dl-fldigi on the pi thanks
[11:57] <craag> lepkirk: No
[11:57] <craag> That was a joke
[11:57] <Upu> yeah
[11:57] <amell> will kill your battery
[11:58] <lepkirk> lol oh, II really am new to this
[11:58] <Upu> you just need to upload a formatted string to habitat
[11:58] <amell> you could add a bit of code to push the string to habitat
[11:58] <Upu> I don't know how to do this but someone should be able to point you in the right direction
[11:58] <lepkirk> i've had a look around http://habitat.readthedocs.org/en/latest/ but can't find anything bout uploading strings to habitat
[11:59] <lepkirk> this is exactly what I'm looking for
[11:59] <MarkIreland> Why do you need to upload it at all - just get the phone to send you a text to your personal phone if all you need is redundancy
[11:59] <MarkIreland> with gps coords
[11:59] <Upu> likely to be more reliable too
[12:00] <lepkirk> I need redundancy and just a bit of an experiment. I like if the telemetry could be added to habhub along with the radio signals, for once it's on the ground and radio is weak (if I'm far away)
[12:00] <MarkIreland> I have used that device before http://www.stratodean.co.uk/2013/01/backup-tracker-just-in-case.html. It's simple, quick and completely separate from the main tracker. If your batteries go on your main tracker you would be stuffed both ways.
[12:01] <MarkIreland> I get the experiment bit of course, but experimenting with your 'backup' device doesnt sounds like a good idea
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[12:03] <lepkirk> Far enough. I may keep phone totally separate to the pi for the flight itself, still wondering if it's possible to send telemetry directly to habhub
[12:03] <lepkirk> *fare
[12:03] <lepkirk> *fair lol
[12:03] <MarkIreland> it defo is possible and think has been done
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[12:04] <lepkirk> I wonder how dl-fldigi itself connects to habhub
[12:05] <MarkIreland> http://www.ebay.co.uk/itm/Genuine-GPS-Tracker-Magnetic-Car-Vehicle-Spy-Mini-Personal-Tracking-Device-TK102-/111201679112?pt=UK_In_Car_Technology&hash=item19e422f708
[12:05] <lepkirk> thanks that looks good as a backup
[12:08] <MarkIreland> not sure who has the best '2G' coverage these days? O2 maybe?
[12:08] <craag> If you want 2G with very little data
[12:08] <craag> Get 'anyNet' sim from eseye
[12:08] <craag> (data limit is only a few MB per month)
[12:10] <craag> X0 UP
[12:10] <mfa298> lepkirk: I don't know all the details so can't give a complete answer but I think you need to send suitable data (json format) to the couchdb that runs habitat
[12:11] <mfa298> but if it's just a backup there's probably little point in sending sms strings to habitat, the radio telemetry should be much better.
[12:12] <HB9RSU> lepkirk: You run the PITS with a cam and SSDV?
[12:13] <lepkirk> I feel like if I get it working, there's no harm in having extra data sent to habhub and could be helpfull for when it's on the ground and radio is weak. If there's 2G signal, great, if there's not, it's no worse than without trying
[12:13] <lepkirk> HB9RSU: yes
[12:14] <mfa298> if you're reasonably close to it the radio shouldn't be that weak when it's on the ground.
[12:14] <lepkirk> I tried the command: curl http://habitat.habhub.org/:5984/ which I think is meant to return a welcome message but nothing happens
[12:14] <mfa298> and you should be able to track it down to a fairly low altitude if your chasing it.
[12:14] <craag> lepkirk: There's a HTTP API
[12:15] <lepkirk> (welcoem from the couchdb)
[12:15] <craag> look at github.com/philcrump/habrotate/
[12:15] <lepkirk> is there any documentation anywhere?
[12:15] <craag> in the main python file there's some examples
[12:15] <lepkirk> thanks
[12:15] <mfa298> I think the couch interface is proxied via habitat/habitat so you can't see all the couch stuff
[12:15] <HB9RSU> SSDV togehther with RTTY is not workng for me :-(
[12:16] <lepkirk> I haven't tested SSDV yet, only RTTY
[12:19] <pd3t> !dial X0
[12:19] <SpacenearUS> 03pd3t: Latest dials for 03X0 10(3f15): 03434.125 MHz, 434.07376 MHz, 434.07426 MHz, 434.07364 MHz, 434.07488 MHz
[12:19] <pd3t> hmm
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[12:19] <SpacenearUS> New vehicle on the map: 03CDJ-1 - 12http://habhub.org/mt/?focus=CDJ-1
[12:19] <lepkirk> craag: yes looks like there's enough code in github.com/philcrump/habrotate/ to keep me busy this afternoon :) thanks
[12:19] <pd3t> amell: you here?.
[12:20] <craag> lepkirk: That program doesn't submit any data, but hopefully you can match it up with the habitat docs and work it out :)
[12:21] <lepkirk> yeah, if it can connect and receive data then that's a start
[12:22] <pd3t> nvm found it
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[12:24] Nick change: Guest2498 -> jasiek_
[12:26] <Upu> is the UKHASNET thing working ?
[12:28] <craag> err no
[12:28] <craag> last packet 8 minutes ago from james
[12:28] <craag> It is transmitting
[12:29] <craag> Not quite sure what james is doing wrong
[12:30] <craag> worked fine at emf (he was off volunteering)
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[12:32] <fsphil> HB9RSU: what is your current setup? if you have rtty working, ssdv shouldn't be much more work
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[12:37] <Ron_G8FJG> how often does the 869mhz signal trasmit...Im getting good bursts every 20sec on 869.530
[12:38] <amell> pd3t: i am now.
[12:38] <Ron_G8FJG> trying new 10 ele yagi
[12:38] <amell> wow. that was some serious frequency shift.
[12:39] <craag> Ron_G8FJG: Every 30s
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[12:39] <craag> roughly
[12:39] <craag> so could be it!
[12:41] <Ron_G8FJG> craag...ok seen the signal getting stronger ,,,,now 30db over noise
[12:41] <craag> Have you got the decoder program working?
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[12:42] <craag> db_g6gzh: HIGH FIVE :)
[12:42] <ok1cdj> hi
[12:42] <craag> ukhasnet packet gatewayed by db_g6gzh just now
[12:42] <amell> link to decoder again?
[12:44] lepkirk (5ce8ad16@gateway/web/freenode/ip.92.232.173.22) left #highaltitude.
[12:45] <craag> db_g6gzh's home nodes now reliably gatewaying
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[12:50] <pd3t> amell: found it already ;)
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[12:54] <PE2G> !dial X0
[12:54] <SpacenearUS> 03PE2G: Latest dials for 03X0 10(3f15): 03434.5 MHz, 434.125 MHz, 434.0755 MHz, 434.0751 MHz, 434.07576 MHz, 434.0764 MHz, 434.29643 MHz, 434.0778 MHz, 434.07638 MHz, 434.075716 MHz, 434.076 MHz, 434.0747 MHz, 434.075696 MHz
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[12:54] <amell> pe2g: 434.074
[12:55] <fsphil> balloon in the air?
[12:56] <PE2G> amell: tnx amell, got it now
[12:56] <amell> yes, that is fast, already passing off the coast. 45 mins from elsworth, must be almost a record.
[12:56] <fsphil> ah on 869mhz too
[12:57] <amell> fsphil: are you on US time or something? :)
[12:57] <fsphil> my brain feels like it sometimes
[12:58] Nick change: day- -> day
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[13:10] <pc1pcl> !dial CDJ-1
[13:10] <SpacenearUS> 03pc1pcl: Latest dials for 03CDJ-1 10(d777): 03951 MHz
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[13:14] <Laurenceb__> B-64 has been up 4 months :D
[13:14] <chrisstubbs> !dial X0
[13:14] <SpacenearUS> 03chrisstubbs: Latest dials for 03X0 10(3f15): 03434.29643 MHz, 434.0751 MHz, 434.075893 MHz, 434.07576 MHz, 434.0771 MHz, 434.0755 MHz, 434.075914 MHz, 434.125 MHz, 434.07688 MHz
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[13:15] <mattbrejza> !whereis b-64
[13:15] <SpacenearUS> 03mattbrejza: 03B-64 is over 03North Atlantic Ocean 10(31.4316,-75.6884) at 0312589 meters
[13:15] <mattbrejza> !ping b-64
[13:15] <SpacenearUS> 03mattbrejza: Last contact with 03B-64 was 03a minute ago
[13:23] <PE2G> !hysplit B-64
[13:23] <SpacenearUS> 03PE2G: HYSPLIT for 03B-64 - 12http://spacenear.us/tracker/hysplit_cache/141101-10_127797_B64.gif
[13:23] <joltz> pretty impressive that b-64... and also all the receivers picking it up
[13:24] <joltz> i'm just in awe
[13:24] <amell> laurenceb_: did you do any analysis of the battery condition?
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[13:41] <Lunar_Lander> hello
[13:42] <SpeedEvil> KreAture: hey
[13:42] <SpeedEvil> hey
[13:43] MarkIreland (~MarkIrela@host86-177-85-38.range86-177.btcentralplus.com) left irc: Ping timeout: 245 seconds
[13:43] <SpeedEvil> Oooh
[13:44] <SpeedEvil> http://slashdot.org/
[13:44] <SpeedEvil> doh
[13:44] <SpeedEvil> http://tech.slashdot.org/story/14/11/01/1332248/world-war-ii-tech-eloran-deployed-as-gps-backup-in-the-uk
[13:44] <SpeedEvil> LORAN is quite easy to pick up
[13:45] <Maxell> !payload X0
[13:45] <SpacenearUS> 03Maxell: Payload 03X0 10(3f15) 03$$X0 - 03435.075 MHz USB 03RTTY 50/425Hz ASCII-7 none 1
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[13:47] <pc1pcl> burst..
[13:47] <LeoBodnar> reads like Daily Mail material
[13:47] <mattbrejza> does eloran work in hte same way as gps? measuring time of flight of a signal from different transmitters?
[13:48] <LeoBodnar> "General Lighthouse Authorities (GLA) has announced that they have deployed a World War II technology"
[13:48] <LeoBodnar> no
[13:48] <LeoBodnar> it uses phase comparison
[13:48] <mattbrejza> "capable of reaching ... underwater"
[13:48] <mattbrejza> oh ok
[13:48] <SpeedEvil> It's a long-wave coded burst transmission
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[13:49] <mattbrejza> same kinda idea though, just different way of measuring the delays between the signals?
[13:49] <SpeedEvil> you detect relativedelays between several transmitters, whos bursts are on the same frequency, but timesliced so they can't overlap in the desired range
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[13:49] <mattbrejza> to wikipedia...
[13:49] <LeoBodnar> oh i might be wrong
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[13:50] <LeoBodnar> i thought transmitters are phase-aligned
[13:50] <Maxell> pc1pcl: frequency for the ballon that is in range?
[13:50] <SpeedEvil> LeoBodnar: they are - sort-of
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[13:50] <pc1pcl> Maxell: 434077-ish
[13:50] <SpeedEvil> LeoBodnar: but only in that the burst is a constant signal - and transmitted at a constant known time
[13:50] <Maxell> not 435 ?
[13:51] <pc1pcl> drifted up when going up, so probably drifting down now
[13:51] <pc1pcl> payload must have had typo, or last inute change.
[13:52] <LeoBodnar> "The system is now in place in .., Middleborough,..."
[13:52] <LeoBodnar> where is it?
[13:53] <LeoBodnar> so the news is "WW2 tech deployed in Middleborough is 1 million times stronger than GPS."
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[13:53] <SpeedEvil> I wonder what that means.
[13:53] <SpeedEvil> Average power over the UK?
[13:53] <SpeedEvil> Total power of the systems.
[13:53] <SpeedEvil> Relative power of satellites?
[13:54] <Maxell> not seeing anything here from the dunes
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[13:56] <LeoBodnar> US decommissioned LORAN ages ago
[13:56] <LeoBodnar> russians are still using it for inland navigation
[13:57] Action: SpeedEvil walks without rhythm.
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[13:58] <LazyLeopard> Presumably the reporter given the press release and the job of turning it into an article decided it involved Science(tm) and fell back on what he'd learned from X-Files...
[13:59] <LazyLeopard> ...or possibly The Beano.
[13:59] <SpeedEvil> http://en.wikipedia.org/wiki/Loran-C#United_Kingdom_eLORAN_implementation
[14:00] <pc1pcl> Maxell: Would expect you'd have a better signal in the Dunes than over here..
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[14:00] <Maxell> yeah - however RX is rtl-sdr and not an ideal antenna
[14:01] <Maxell> so fix these two (ft-817 + small yagi) and it would be an amzing signal
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[14:01] <SpeedEvil> http://www.ship-technology.com/news/newsuk-and-ireland-general-lighthouse-authorities-launch-eloran-navigation-system-4424154
[14:02] <LeoBodnar> Effective 2000 UTC 8 February 2010, the United States Coast Guard terminated all operation and broadcast of LORAN-C signals in the USA.
[14:02] <SpeedEvil> yeah - US woud likely be the ones turning off GPS
[14:02] <SpeedEvil> So having an extra signal doesn't do anything
[14:03] <LazyLeopard> Saw something somewhere about the Russians apparently re-commissioning a similar system.
[14:05] <pc1pcl> Maxell: new toys from DvdA?
[14:05] <LeoBodnar> mattbrejza: sorry I have confused it with DECCA system [13:48] <LeoBodnar> it uses phase comparison
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[14:06] <Maxell> pc1pcl: no, the ft-817 + small yagi would be ideal. I do not have both
[14:06] <mattbrejza> oh right
[14:06] <LeoBodnar> russians are still using CHAYKA http://en.wikipedia.org/wiki/CHAYKA
[14:06] <LeoBodnar> i think the difference is subtle
[14:06] <pc1pcl> Ah,
[14:08] <SpeedEvil> yeah - SDR type recievers should have no iseues recieving either
[14:08] <SpeedEvil> both
[14:08] <mattbrejza> what frequncy is loran?
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[14:15] <SpeedEvil> ~150khz
[14:16] <LeoBodnar> "eLoran is a low frequency terrestrial navigation system based on a number of transmission stations, which emit precisely timed and shaped radio pulses centred at 100 kHz radio frequency."
[14:16] <mattbrejza> oh is that all
[14:17] <mattbrejza> should be almost able to shove a wire into a pc's sound card and use that
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[14:19] <Geoff-G8DHE> Oh what happened to XABEN82 ? I can seethe telemetry but nobody seems to be able to decode ?
[14:20] <PE2G> $$X0,950,14:19:56,0.00000,0.00000,0,0,4.24*1BFF
[14:20] <Upu> lost lock
[14:20] <Upu> has time
[14:20] <Geoff-G8DHE> Ah yer
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[14:23] <amell> yes lost lock here too
[14:23] <amell> distance 5614km :)
[14:23] <amell> elevation -26.1
[14:24] <SpacenearUS> New vehicle on the map: 03M0MDB_chase - 12http://habhub.org/mt/?focus=M0MDB_chase
[14:26] <amell> I still have a Decca/Loran nav system off an old boat somewhere. Not sure which one it is.
[14:29] <Lunar_Lander> nice
[14:29] <Lunar_Lander> like the older Vaisalas
[14:29] <Lunar_Lander> which didn't have GPS yet
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[14:31] <PE2G> Lunar_Lander: SondeMonitor couldn't decode it, so direction finding only...
[14:33] <Lunar_Lander> oh ok
[14:34] <Lunar_Lander> btw did you have any of the new RS42 or how are they called yet?
[14:35] <PE2G> Not yet, they're not used in western-europe yet
[14:38] <PE2G> http://www.radiosonde.eu/RS00-D/RS03F05-D.html
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[14:58] <Upu> not rushing about coming down
[14:58] <Upu> $$X0,1141,14:58:07,0.00000,0.00000,0,4,4.26*2249
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[14:59] <RocketBoy> skyhook
[14:59] <Upu> hey Steve
[14:59] <Upu> its still transmitting
[15:00] <Upu> can still see it here
[15:00] <RocketBoy> yeah - amazed - big chute though
[15:00] <amell> i cant see it here
[15:00] <Upu> no location but time is ok
[15:00] <RocketBoy> nice decodes here in the car at elsaworth - pitty about the gps
[15:00] <RocketBoy> elsworth
[15:01] <Upu> $$X0,1155,15:00:55,0.00000,0.00000,0,4,4.27*1C33
[15:01] <amell> rocketboy: youre still there? :)
[15:01] <RocketBoy> yep
[15:01] <amell> good job the portaloo is in place for tomorrow :)
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[15:03] <Upu> fading now so its about 1800m
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[15:05] <amell> Rocketboy: decoded while on the ground for about half an hour, then it went quiet for about 15 min before you launched.
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[15:06] <Upu> maybe not still there $$X0,1179,15:05:43,0.00000,0.00000,0,4,4.28*F53E
[15:07] <amell> why would it have lost lock for such a long time? shorted out or something
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[15:08] <Upu> many reasons
[15:09] <Upu> gone
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[15:10] <pc1pcl> rtty track still visible faintly on waterfall here, but no decodes for 9 min now
[15:12] <RocketBoy> gone from wf
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[15:32] <jededu> upu have you programmed the MTX2 using "@PRG_xxxxxxxx" yet
[15:32] <Upu> yep
[15:33] <Upu> https://github.com/Upuaut/uAVA/blob/master/uava_rtty/uava_rtty.ino#L777-L792
[15:40] <edmoore> can you poll the mtx2 to interrogate things like freq?
[15:40] <jededu> Thanks upu im having serial probs the code is correct
[15:40] <edmoore> or is it write-only?
[15:40] <Upu> write only
[15:40] <Upu> no ack
[15:41] <edmoore> hence the void i guess
[15:41] <edmoore> that's a bit farty
[15:41] <edmoore> can;t have everything
[15:55] <jededu> Done I diddnt invert it
[15:55] <jededu> :)
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[16:08] <ok1cdj> hi
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[16:23] <maxmed> Hi, am I correct in thinking that for a ground plane antenna I can replace the 4 ground wires with something like a foil/metallic disk?
[16:24] <Geoff-G8DHE> Yup
[16:24] <Geoff-G8DHE> just like a mag-mount on a car roof
[16:25] <maxmed> great, the size of the disk doesn't really matter does it?
[16:25] <Geoff-G8DHE> Other than it must be greater than a 1/4 wavelength
[16:26] <edmoore> in radius
[16:26] <Geoff-G8DHE> 1/2 wavelength sorry!
[16:26] <edmoore> in diameter
[16:26] <Geoff-G8DHE> indeed
[16:27] <maxmed> does it even have to be a disk or would say a square which was bigger than the 1/4 wavelength disk?
[16:27] <Geoff-G8DHE> I've never seen a circular car roof yet ?
[16:28] <edmoore> cool idea though huh :)
[16:28] <edmoore> maxmed, square is fine
[16:28] <edmoore> basically you're just approximating an infinitely long plane
[16:28] <maxmed> that was my thinking but thought it was worth checking in case it gave a subtle advantage that car radios are not too fussed about
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[16:28] <edmoore> anything less than that is going to be x dBs worse
[16:28] <Upu> http://cl.jroo.me/z3/p/D/0/d/a.baa-Testewagon-Car.jpg
[16:28] <edmoore> but x is small
[16:28] <edmoore> and not mega sensitive
[16:28] <Geoff-G8DHE> It does change the radiation angle a little but not enough to worry about
[16:30] <maxmed> cool, I understood my physics teacher correctly! I'm thinking I'll just stick some foil tape or foiled backed cardboard to the bottom of my payload.
[16:31] <edmoore> yep, all good
[16:31] <edmoore> just make sure it's electrically connected to rf-gnd
[16:31] <ulfr> the larger the groundplane is, the less effect it has on the radiation pattern
[16:31] <ulfr> if the ground plane is at least 1/4 lambda it reduces the radiation skewness quite a bit.
[16:32] <maxmed> edmoore- yes of course! It doesnt need connecting to the battery ground though does it?
[16:32] <edmoore> they probably are connected anyway
[16:32] <edmoore> through your radio
[16:33] <ulfr> perhaps that's not a bad idea though, considering static?
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[16:33] <edmoore> but it's better that it go to the radio's dedicated rf_gnd so as to control current return path and impedence and so on
[16:33] <edmoore> you don't want a big inductive current return loop
[16:33] <day> ulfr: does an infinite groundplane even radiate EM waves?
[16:33] <ulfr> Of course it does.
[16:33] <day> or would the whole radiation be shifted into the antenna itself?
[16:33] <day> oh :(
[16:34] <maxmed> great thats what I expected. thanks all.
[16:34] <ulfr> it just runs on x lambda from the center of the dipole
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[16:34] <ulfr> day: ideally, groundplanes should be infinite
[16:34] <ulfr> But it's quite hard to acheive that.
[16:35] <day> the ground plane of a dipole antenna would be one of the poles correct?
[16:35] <edmoore> i don't think the ground plane emits anything
[16:35] <edmoore> theoretically
[16:35] <edmoore> sorry
[16:35] <edmoore> it's potential should always be zero at all points
[16:35] <day> yeah thats what i assumed
[16:36] <day> the smaller it gets the less perfect it becomes :/
[16:36] <edmoore> yeah
[16:37] <zyp> dipoles are balanced antennas and as such doesn't need a ground plane
[16:37] <day> this creates another problem. whom shall i trust now. edmoore or ulfr :P
[16:37] <zyp> monopoles are unbalanced and as such needs a reference ground plane
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[16:38] <maxmed> ohh the other thing he suggested was using a dipole antenna rather than a ground plane, he thought it would increase the range?
[16:39] <edmoore> i don;t think it would
[16:39] <zyp> it wouldn't
[16:39] <edmoore> assuming you're converting all your power to rf with the same efficiency (another conversation) then it comes down to the radiation pattern
[16:39] <ulfr> Might even be counter productive, as dipole is more isotropic than ground plane antenna with groundplane at 90° to the monopole
[16:39] <zyp> the only way an antenna affects range is by loss and directionality
[16:39] <fsphil> !hysplit B-64
[16:39] <SpacenearUS> 03fsphil: HYSPLIT for 03B-64 - 12http://spacenear.us/tracker/hysplit_cache/141101-10_127797_B64.gif
[16:40] <edmoore> a dipole as a more symmetrical radiation pattern, so it has to spead its fixed amount of output power over a large area, if you can visualise what i mean
[16:40] <edmoore> whereas a monopole can concentrate that power into a smaller region in terms of its radiation pattern
[16:40] <edmoore> this is what we mean by antenna gain
[16:40] <edmoore> it's like filling a kitchen glove with water
[16:40] <edmoore> if you squeeze one finger, another gets fatter
[16:41] <edmoore> you have a fixed amount of power, if you reduce the gain in one direction you'll increase it in another
[16:41] <edmoore> so with the monopole vs dipole, if you go monopole you loose an entire hemisphere of radiation
[16:41] <edmoore> which means more gain in the remaining hemisphere
[16:41] <edmoore> this is why we went for monopoles for habs in the first place, back when we were first doing this
[16:42] <maxmed> ahh that explains what he was saying- he mentioned it would cover a greater area and so thought that would be better but it makes sense that the power would be more spread out so harder to detect
[16:42] <day> the signal that is fed into a dipol antenna. Does it has earth as a reference?
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[16:42] <zyp> no, there is no need for a reference
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[16:43] <edmoore> maxmed, sometimes that'd be useful, in general for a hab it's always above us, so there's almost always no need to radiate above the payload, as that'd just be going out into space
[16:44] <edmoore> there are things better than simple monopoles which put even more energy out to the horizons (and slightly down) and less straight vertically down
[16:44] <edmoore> like J-Pole and slimjim antennas
[16:44] <edmoore> you could argue these might be even better for hab
[16:45] <maxmed> he probably didnt appreciate how low power the radios we use are, I guess if we could use more powerful transmitters then it could be worth doing.
[16:45] <edmoore> indeed - antenna choice is often very specific to th task at hand
[16:45] <zyp> antenna radiation pattern is always a tradeoff, the more focused you make it, the more efficient it will be, but the harder it will be to get it aimed correctly
[16:45] <edmoore> but there's plenty of room for experimentation here
[16:49] <edmoore> we tried big-wheel antennas once, for example, in the early days when all the hams complained that their yagis were horizontally polarised
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[16:56] <day> i thought dipol antennas are quite efficient :o
[16:57] <day> and have a big (donought) shaped field
[16:57] <edmoore> they are efficient
[16:57] <edmoore> you sound like it has been suggested otherwise
[17:06] <zyp> day, that's nice if a big donut shaped field is what you want
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[17:08] <edmoore> exactly
[17:08] <edmoore> efficiency of an antenna is defined as rf_power_out/electrical_power_in
[17:09] <edmoore> then there is the concept of radiation pattern
[17:09] <edmoore> they two concepts are unrelated
[17:09] <edmoore> the*
[17:09] <SpacenearUS> New vehicle on the map: 03200000_chase - 12http://habhub.org/mt/?focus=200000_chase
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[17:11] <day> edmoore: i see. i thought you were talking about the electrical power to EM wave conversion efficiency. Not about the distribution. my bad
[17:11] <edmoore> nope
[17:12] <edmoore> the other thing people get wrong in practice is conflating efficiency with impedance
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[17:12] <edmoore> i.e. that if the SWR meter says 1:1 it must be a good antenna
[17:12] <SpacenearUS> New vehicle on the map: 03C91TDD_chase - 12http://habhub.org/mt/?focus=C91TDD_chase
[17:12] <edmoore> that is incorrect, it's quite possible to make a perfectly matched heater than emits zero rf
[17:13] <edmoore> that*
[17:13] <day> yes, ive read about that yesterday
[17:14] <edmoore> so you do get people doing things like following a design on the net that matches 1.5:1, then trimming bits off until they get it to 1:1, and not realising they've made a much worse antenna
[17:19] <day> edmoore: diy + half knowledge + thinking 'i can do this better even tho i dont understand a think' the best kind of mix
[17:19] <day> thing*
[17:19] <edmoore> yeah indeed
[17:19] <edmoore> thankfully it's only hab
[17:19] <edmoore> no one will get hurt
[17:19] <day> the audio scene is big in this department as well :p
[17:19] <edmoore> in my life i've moved onto things where not understanding the physics causes real problems
[17:19] <edmoore> now i get a bit anal about it
[17:20] <day> meh i just tell myself, if i cant explain it to myself, i shouldnt try to fix it myself
[17:21] <edmoore> well again, if you can make a hypothesis then test it, without doing any harm, that's the best way to learn
[17:22] <day> true.
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[17:29] <fox123> hallo all, please how frequency and mode cdj-1
[17:31] <pc1pcl> !dial CDJ-1
[17:31] <SpacenearUS> 03pc1pcl: Latest dials for 03CDJ-1 10(d777): 03951 MHz
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[17:40] <ok1cdj> GE all
[17:44] <fox123> ok1cdj, please how frequency and mode cdj-1, do you receive its signal
[17:45] <ok1cdj> me not.. but is tracked now several OK stns...
[17:45] <ok1cdj> 434.690 RTTY 300 bd/450 hz shift
[17:46] <fox123> TNX 73
[17:46] <ok1cdj> fox123 your QTH ?
[17:46] <fox123> Lomnice u SOKOLOVA my call OK1SLA
[17:47] <ok1cdj> fox123: ok tak to jsem kousek.. letelo to dnes z Blataku...
[17:47] <ok1cdj> fox123: v KV uz to neberu.. je to za kopcem..
[17:48] <qyx_> lol zdravim o/
[17:48] <fox123> dík za info zkusím pYíjem 73
[17:49] <ok1cdj> fox123: v DL-FLDIGI hledej CDJ-1 a mas to..
[17:49] <ok1cdj> qyx_: ahoj
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[17:51] <qyx_> cdj-1 may be in reach from bratislava soon according to prediction
[17:51] <qyx_> or maybe not
[17:53] <ok1cdj> qyx; going very slow.. :-( here is absolutely no wind... i hop that tracker survive over 30 hours..
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[17:55] <qyx_> ok1cdj: what battery do they use? i noticed it was only 1.41V during launch
[17:55] <ok1cdj> 1x AA Energizer
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[17:55] <ok1cdj> qyx_ same as Radim
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[17:57] <qyx_> do you use their pico tracker?
[17:57] <ok1cdj> qyx_: is based on it.. but wih some power mods..
[17:57] <ok1cdj> qyx_: gps power save and so on...
[17:58] <ok1cdj> qyx_: this is test with continous TX, will use some TX time managemnt in next flight..
[17:59] <qyx_> ah
[18:00] <ok1cdj> qyx_: and need to reduce weight... this payload have 29 g
[18:00] <qyx_> do you have any pics of it?
[18:01] <DG0MG> ok1cdj: what is the Ballon?
[18:02] <ok1cdj> qyx_: older version 3.1 is in github, new version 3.2 will be in github soon... i have some pics from today flight.. need to upload them to the internet..
[18:02] <ok1cdj> dg0mg: 36" qualatex
[18:02] <DG0MG> ok, and the free Lift?
[18:03] <ok1cdj> 2g
[18:03] <DG0MG> ok, we will try tomorrow the same
[18:05] <ok1cdj> dg0mg: great..
[18:05] <DG0MG> with 0x03, around 10.00 MEZ
[18:05] <mclane_> how do you measure 2 g free lift?
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[18:07] <DG0MG> ok1cdj: your starting place isnt so far away from me, i think i know this from driven by, a Club station or so?
[18:08] <ok1cdj> is OL7C QTH
[18:09] <ok1cdj> Blatensky vrch 1044m asl jo60jj
[18:09] <ok1cdj> free lift was measured by tea bag :-)
[18:09] <ok1cdj> some pics: https://www.dropbox.com/home/Public/cdj-1
[18:11] <DG0MG> this link dont work
[18:11] <DG0MG> you must use "copy public link"
[18:12] <DG0MG> in dropbox
[18:14] <ok1cdj> https://www.dropbox.com/sh/59fiacn5lwpe6dz/AACTV8ljg3jSyRB0HttlnCSCa?dl=0
[18:14] <ok1cdj> and then cdj-1 folder
[18:17] <DG0MG> this works :) thank you!
[18:18] <DG0MG> how loang do you think that the battery works?
[18:20] <ok1cdj> when i tested tracker on my flat window in plastic box it was 35 hours from single AA battery, but was warmer than in sky :-)
[18:20] <ok1cdj> with continous TX, 20 mW
[18:21] <DG0MG> an the Battery is Lithium or Alkaline?
[18:21] <ok1cdj> Enrgizer lithium
[18:22] <DG0MG> We'll see tomorrow :D
[18:22] <ok1cdj> is better to do some spacing in TX, when is ballon in float.. i thing 2 minut pause will be good and battery last longer..
[18:22] <ok1cdj> yes will se..
[18:23] <DG0MG> yes, continuous transmitting is easy for the listeners, but not good for the battery
[18:24] <DG0MG> We think 1 Minute is good, but we will use 30sec
[18:24] <ok1cdj> yes we will see if survive night..
[18:25] <DG0MG> if you receive a very weak signal only every only 2 Minutes that might be very frustrating
[18:25] <ok1cdj> yes but in thing 10 rtty packtes every 1 or 2 minutes will be ok..
[18:25] <ok1cdj> will try it next time..
[18:26] <DG0MG> ok tell us your next start, perhaps we make a short hop in teh car to JO60JJ :D
[18:27] <ok1cdj> i'm not here to often, my home QTH is 250 km east... jo70va
[18:27] <DG0MG> oaah thats not a short hop ^^
[18:28] <ok1cdj> yes, i have family in Karlovy Vary and going to OL7C for VHF Contest
[18:29] <DG0MG> ah, first weekend in November, this is the CW-only VHF?
[18:29] <DG0MG> or only 2 Meters?
[18:29] <ok1cdj> yes..
[18:30] <ok1cdj> i was there but not for contest only for help friends and launch baloon.. i have some family duties this weekend..
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[18:32] <DG0MG> ok, perhaps next year - the first contest is in March
[18:33] <ok1cdj> yes sure :-) or we can make some baloon meeting.. there is cotage on the hill antennas and so on..
[18:33] <DG0MG> or if a Balloon from JO70 goes to west direction ..
[18:34] <ok1cdj> yes.. but to west is not common direction..
[18:35] <DG0MG> a great idea, here around are many ballon-Fans and Radiosonde-Hunters
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[18:36] <DG0MG> west is rarely, right
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[18:36] <DG0MG> but we have the habhub-map to follow the payload
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[18:54] <Dominica> Any link to find the transmitter frequency of CDJ-1?
[18:54] <qyx_> 18:45 < ok1cdj> 434.690 RTTY 300 bd/450 hz shift
[18:55] <qyx_> should be
[18:55] <ok1cdj> yes..
[18:55] <Dominica> Oh sorry, It is another blue balloon on spacenear.us :(
[18:56] <Dominica> Sorry for that, I was watching X= and reading CDJ-1 :/
[18:57] <SA6BSS-Mike> ok1cdj: using the 3,1 sw and pcb I get 38hours from a lithium AA and 4 rtty strings every 70sek
[18:57] <SA6BSS-Mike> @12mW
[18:57] <ok1cdj> hi mike..
[18:58] <SA6BSS-Mike> hi
[18:58] <ok1cdj> in github will be new code with gps power save mode
[18:58] <SA6BSS-Mike> realy looking forward to 3,2 submision :)
[18:59] <ok1cdj> or i can you send the code..
[18:59] <SA6BSS-Mike> yeah, will browse the git every day , hehe
[18:59] <SA6BSS-Mike> that would be great!!
[18:59] <SA6BSS-Mike> I pm you ky mailadress
[19:00] <ok1cdj> can you send me you code with timed tx..
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[20:14] <nats`> a lithium battery @0.8v is dead ?
[20:15] <mfa298> nats`: that may have been an AA / AAA cell so normally around 1.5v
[20:16] <nats`> it's a lithium battery for sure :)
[20:16] <nats`> I dismantled the product :)
[20:16] <Myself> lithium primary or rechargeable? But, yeah, 0.8v is dead regardless.
[20:17] <nats`> rechargeable and it doesn recharge :)
[20:17] <nats`> ok I need to drop it so
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[20:19] <Myself> a rechargeable cell's datasheet will specify a "do not discharge below" voltage, which is the cutoff point beyond which the cell separator should be assumed damaged, and recharging is likely to result in the euphemistically-wonderful "venting with flame".
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[21:22] <SpacenearUS> New vehicle on the map: 03SP5NVX - 12http://habhub.org/mt/?focus=SP5NVX
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[22:28] <SpacenearUS> New vehicle on the map: 03OK1OMX - 12http://habhub.org/mt/?focus=OK1OMX
[22:30] <lz1dev> !hysplit run CDJ-1
[22:30] <SpacenearUS> 03lz1dev: Your job has been added to the queue. Check in a few minutes
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[22:42] <PE0SAT> GE, can somebody tell me the X0 RX freq?
[22:43] <SA6BSS-Mike> x0 landed in the sea a couple of hours ago
[22:44] <PE0SAT> SA6BSS-Mike: Thank you for the information
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[22:52] <SpacenearUS> New vehicle on the map: 03Seed2 - 12http://habhub.org/mt/?focus=Seed2
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[23:40] <DL7AD> !hysplit B-64
[23:40] <SpacenearUS> 03DL7AD: HYSPLIT for 03B-64 - 12http://spacenear.us/tracker/hysplit_cache/141101-22_133783_B64.gif
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[23:42] <myier> oh maybe i'll finally be able to catch it
[23:42] <myier> from south france
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[00:00] --- Sun Nov 2 2014