highaltitude.log.20170312

[00:00] <Darkside> too slow updated for my liking
[00:00] <Darkside> but then again i'm not doing floaters
[00:00] <vk3pb> Now this was launched on top of teh mountain which is about 800 m up
[00:00] <vk3pb> at about 0230
[00:01] <Darkside> sounds almost like it went up, tore, then fell before it could get another packet out
[00:01] <vk3pb> so it has risen 780m in 10 mins and then another 880m in another 10 m
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[00:02] <Darkside> 1m/s
[00:02] <vk3pb> could be but I thought balloons went higher before bursting
[00:02] <Darkside> 1.5m/s rather
[00:02] <Darkside> it all depends, right?
[00:02] <Darkside> how heavy was the payload?
[00:02] <vk3pb> this is daytiem also so some heating effects
[00:02] <vk3pb> about 14 grams all up
[00:02] <Darkside> mmk
[00:02] <Darkside> dunno really
[00:03] <Darkside> havent flown a qualatex for a few years now
[00:03] <vk3pb> its academic. lesson learned. Measure carefully no more than 2-3 grams free lift next time
[00:03] <Darkside> so how long was your antenna?
[00:03] <vk3pb> how far did your qualtexes go?
[00:03] <Darkside> not far enogh lol. i overfilled and they tore and descended
[00:04] <Darkside> i did manage to recover it which was nice
[00:04] <vk3pb> so what do you use for balloons now?
[00:04] <Darkside> <-- Project Horus
[00:04] <vk3pb> ok, that's a larger scale balloon
[00:05] <Darkside> yeah
[00:05] <Darkside> we do up/down flights, not floaters
[00:05] <Darkside> at some point i might try floaters again
[00:05] <vk3pb> have you heard of foil balloons going any signficant distance?
[00:05] <Darkside> but not for a while
[00:05] <Darkside> of course!
[00:05] <Darkside> qualatex 36" balloons have circumnavigated the world
[00:05] <vk3pb> i was starting to wonder whether they were too fragile
[00:06] <Darkside> or at least gotten damn close
[00:06] <vk3pb> ok sounds good enough
[00:06] <Darkside> http://rfhead.net/?p=523
[00:06] <Darkside> ok so i didnt recover that one :P
[00:06] <vk3pb> Mine was a Qualatext 36" soccer ball
[00:06] <vk3pb> Do they make bigger foil balloons?
[00:06] <Darkside> dont think so
[00:07] <Darkside> i think a lot of the other circumnavigation flights have been using custom envelopes
[00:07] <vk3pb> a 45" would be ideal if made
[00:07] <Darkside> don't ask me how they make them, i have no idea
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[00:07] <vk3pb> I wonder if they coudl be reinfornced by putting a latex balloon inside the foil balloon
[00:08] <Darkside> would be difficult to do!
[00:08] <Darkside> and probably not a good idea
[00:08] <Darkside> since the idea of the foil balloon is it acts as a superpressure envelope
[00:08] <Darkside> whereas a latex balloon wants to continually expand
[00:08] <Darkside> so you made your own payload i guess?
[00:09] <vk3pb> No. I purchased mine from wb8elk
[00:09] <Darkside> wow ok
[00:09] <Darkside> im surprised he sells them!
[00:09] <vk3pb> I tried to make my own but woudl have been too heavy
[00:09] <vk3pb> He has just started to. They are an excellent product - about $US150 but worth it. very very light
[00:09] <Darkside> i always get a bit nervous flying HF antennas around here. having a HF antenna land across powerlines would be bad
[00:10] <vk3pb> True. Although the wire is so thin it would just evaporate immediately
[00:10] <Darkside> maybe
[00:11] <Darkside> there have beensome long discussions around here on plasma physics and if the channel of ionised gas woudl dissipate before the circuit re-closes
[00:11] <vk3pb> I mentioned to Bill about the idea of using shorter, loaded antennas. Actually the foil might make a good top hat
[00:12] <Darkside> ok, time to run the freedv broadcast callback...
[00:12] <vk3pb> ok then catch you later
[00:13] <Darkside> ill still be around
[00:13] <Darkside> got any pictures of bill's board?
[00:13] <Darkside> cant find much info on it online
[00:14] <aadamson> vk3pb, you seriously can't judge full, too full, not full enough on a 36" party by eye. The different between 3gr of free and 6grams will be hardly noticable and both will be signficantly deflated
[00:14] <vk3pb> http://www.amateurlogic.tv/blog/?p=920
[00:14] <aadamson> but the later runs higher risk of bursting due to over pressure
[00:14] <vk3pb> There you go
[00:15] <vk3pb> yes lesson learned
[00:15] <Darkside> woah those payloads are huge
[00:16] <vk3pb> only 11 grams
[00:16] <Darkside> still
[00:16] <Darkside> :P
[00:16] <vk3pb> very very light
[00:16] <aadamson> hehe :)... is < 1 sq inch more in your liking, and ~1.5gr (board weight)
[00:16] <aadamson> 7gr all in with 2 antennas, solar, supercap
[00:16] <vk3pb> where i can i get one of those?
[00:16] <aadamson> you can't :)
[00:16] <vk3pb> :(
[00:17] <Darkside> not many people sell them
[00:17] <Darkside> very rare
[00:17] <aadamson> https://dl.dropboxusercontent.com/u/6730484/2016-05-02%2020.50.12%20-%20small.jpg
[00:17] <Darkside> you can find some designs, but manufacturing those tiny payloads is a PITA
[00:17] <aadamson> https://dl.dropboxusercontent.com/u/6730484/2016-04-07%2022.11.58%20-%20small.jpg
[00:18] <aadamson> 0402's and 3x3 QFN's by hand... (ok I cheat and reflow the board)
[00:18] <Darkside> yeah
[00:18] <Darkside> ive seen a weenie APRS payload too
[00:18] <Darkside> cant remember the design
[00:18] <Darkside> featherHAB
[00:18] <aadamson> that board is both aprs and wspr
[00:19] <aadamson> 2 radios on board
[00:19] <Darkside> tbh i think i'll leave the floaters to other people :P
[00:19] <aadamson> ah, yeah, I know Ethan
[00:19] <Darkside> and focus on high reliability up/down flights
[00:19] <vk3pb> hmm thanks for the ideas
[00:20] <vk3pb> http://protofusion.org/wordpress/2015/10/featherhab-2-gram-high-altitude-balloon-tracker/
[00:20] <aadamson> vk3pb, hirfw-3 and -6 are both flying my payload above
[00:20] <vk3pb> I want
[00:20] <Darkside> vk3pb: well the design is open source, its just a PITA to build :P
[00:20] <aadamson> make one, it's what we all do
[00:20] <vk3pb> Yes I have seen your postings
[00:20] <vk3pb> How much do they weigh?
[00:20] <aadamson> which, 2gram on the link you shared
[00:21] <Darkside> depends on what battery tyou use i guess
[00:21] <vk3pb> not the 2 gram one
[00:21] <vk3pb> yours
[00:21] <aadamson> ~1.5gr
[00:21] <aadamson> They very a little build to build
[00:21] <vk3pb> where can i find the plans?
[00:22] <aadamson> you can't
[00:22] <vk3pb> oh well Im unlikely to make one then
[00:22] <vk3pb> never midn I have another direction I want to go anyway
[00:22] <vk3pb> remote controlled boats
[00:22] <aadamson> It's not open source hardware or software (mostly because it would be a RPITA to support it), it's all custom hardware and firmware
[00:23] <Darkside> i think support is one of the main isssues with all this
[00:23] <Darkside> nobody wants to suppot something as high risk as this
[00:23] <aadamson> stick a gps on one and some logic and let it go autonomous!!!
[00:23] <vk3pb> you mean my boat?
[00:23] <aadamson> yeah
[00:23] <vk3pb> absolutely
[00:24] <vk3pb> but it willd o more than that
[00:24] <aadamson> I've got a wave glider design that I need to dust off and do
[00:24] <vk3pb> it will be able to take commands, steer itself, send data back, send pictures back
[00:24] <vk3pb> and propel itself anywhere
[00:25] <vk3pb> a ncie combination of various technologies
[00:25] <vk3pb> nice
[00:25] <aadamson> cool and you are going to make all of this yourself?
[00:25] <vk3pb> i will try
[00:25] <vk3pb> easier than making a balloon
[00:25] <vk3pb> transmitter
[00:26] <aadamson> Actually those are really easy... you should have started with Bills APRS version
[00:26] <aadamson> They are *much* simpler to deal with
[00:26] <vk3pb> I didnt know he had an APRS version
[00:26] <aadamson> sure, he flew those first
[00:27] <Darkside> i might investigate building a few featherhabs
[00:27] <aadamson> WSPR is really hard due to 20mtr dipole antenna = 10mtr of wire below the balloon
[00:27] <vk3pb> I am sure he will get the weight down further
[00:27] <Darkside> would be good to get into STM programming
[00:27] <Darkside> arm programming that is
[00:27] <aadamson> Darkside, with the gnu eclipse plugin, STM's are really easy to baremetal
[00:28] <aadamson> and there are some (L0's, L4's, F1's I think ) that there are arduino support for (shudder the thought :)...)
[00:28] <vk3pb> The problem from my perspective is that this isnt a hobby I want to expend a lot of effort on. I will only fly once or twice and move on to other things. The nature of my interest in amateur radio and making Amateurlogic is that I am continually doing new things
[00:28] <aadamson> what did he use an F0?
[00:41] <vk3pb> i have filming to do catch you all later
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[00:58] <Laurenceb_> wow 2 gram
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[05:09] <SpacenearUS> New vehicle on the map: 03CALLSIGN123_chase - 12https://tracker.habhub.org/#!qm=All&q=CALLSIGN123_chase
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[06:50] <SpacenearUS> New position from 03HIRFW-6 after 0313 hours silence - 12https://tracker.habhub.org/#!qm=All&q=HIRFW-6
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[08:25] <SpacenearUS> New position from 03CZ_HAB_OL after 0315 hours silence - 12https://tracker.habhub.org/#!qm=All&q=CZ_HAB_OL
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[09:52] <SpacenearUS> New position from 03ODZUJF after 0310 hours silence - 12https://tracker.habhub.org/#!qm=All&q=ODZUJF
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[09:56] <SpacenearUS> New position from 03PD4KDZ-11 after 033 days silence - 12https://tracker.habhub.org/#!qm=All&q=PD4KDZ-11
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[10:42] <pb0ahx> !flights
[10:42] <SpacenearUS> 03pb0ahx: Current flights: 03CZ_HAB_OL_FOR_MODEL 10(3021), 03XABEN-112 10(830a), 03MSPpi1 10(710c), 03UBSEDS21 434.610 CONTESTIA 16/1000 10(2e88)
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[10:50] <SpacenearUS> New position from 03MONSCH after 03a day silence - 12https://tracker.habhub.org/#!qm=All&q=MONSCH
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[11:16] <SpacenearUS> New vehicle on the map: 03MSPpi1 - 12https://tracker.habhub.org/#!qm=All&q=MSPpi1
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[11:24] <SpacenearUS> New position from 03M10WX-11 after 03a day silence - 12https://tracker.habhub.org/#!qm=All&q=M10WX-11
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[11:40] <SpacenearUS> New position from 03RSIST after 0310 hours silence - 12https://tracker.habhub.org/#!qm=All&q=RSIST
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[11:45] <daveake> MSPpi1 is up
[11:48] <pb0ahx> tnx info
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[11:50] <SpacenearUS> New vehicle on the map: 03kobrajede_chase - 12https://tracker.habhub.org/#!qm=All&q=kobrajede_chase
[11:58] <pb0ahx> !flights
[11:58] <SpacenearUS> 03pb0ahx: Current flights: 03CZ_HAB_OL_FOR_MODEL 10(3021), 03XABEN-112 10(830a), 03MSPpi1 10(710c), 03UBSEDS21 434.610 CONTESTIA 16/1000 10(2e88)
[11:59] <pb0ahx> !payload 710c
[11:59] <SpacenearUS> 03pb0ahx: Payload 03MSPpi1 10(710c) 03$$MSPpi1 - 03Manchester Space Programme Pi In the Sky - 03434.25 MHz USB 03RTTY 300/600Hz ASCII-8 none 2
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[12:03] <SpacenearUS> New vehicle on the map: 03MSP_chase - 12https://tracker.habhub.org/#!qm=All&q=MSP_chase
[12:03] <daveake> Odd. They're tweeting suggesting people follow the balloon on the map, but no data from the flight in 17m
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[12:05] <G8FJG> .250 one of my worst freq for qrm, but thought I would have heard it by now
[12:07] <daveake> They didn't get many uploads on the ground either. Suspecting a non-ideal aerial / cable
[12:07] <G8KNN> It's only just visible on the waterfall in Cambridge
[12:07] <G8FJG> is it on .250
[12:07] <daveake> Perhaps https://twitter.com/mcrspaceprog/status/840875459533500416 is something to do with it ...
[12:08] <G8KNN> haha
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[12:11] <M0NRD> v. weak signal 434.2507MHz
[12:13] <pb0ahx> nobody writing him ??
[12:15] <M0NRD> fading badly, not got a horizontal antenna has it?
[12:15] <daveake> I've replied on twitter
[12:16] <daveake> No response
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[12:19] <daveake> Problems Harvy ?
[12:19] <daveake> Seems that it's a very weak signal
[12:20] <Matt_LMK> Nothing down here in Broadstairs :(
[12:20] <Harvy> Not sure, was pretty strong on the ground
[12:21] <daveake> Always is
[12:21] <daveake> Aerial bent? Horizontal?
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[12:21] <Harvy> The last string was while it was flying up.
[12:21] <daveake> Yes you can get that even without an aerial
[12:21] <Harvy> Aerial is tried to the line to the parachute so should be vertical.
[12:22] <G8FJG> see it now on 250.700 ..better Hpol than V ...probably because the qrm is V pol ..
[12:22] <daveake> Line to the parachute ? That's above the payload. Where on the box is the aerial ?
[12:23] <Harvy> The aerial is sticking out the top.
[12:24] <daveake> And it has a ground plane or not ?
[12:24] <Matt_LMK> Out the top. Oops.
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[12:25] <Harvy> I'm not an aerial expert unfortunately, for the record it's colinear dipole antenna.
[12:25] <daveake> Well, sounds like it's not a working antenna
[12:25] <Darkside> sounds like its not going a good job
[12:26] <Darkside> i hope you waved goodbye
[12:26] Action: Darkside -> bed
[12:26] <pb0ahx> til now nothing on screen here
[12:27] <daveake> No updates since launch; you'll be very lucky to get this one back
[12:29] <dbrooke> too weak to decode here http://stuff.dbrooke.me.uk/sp-s8A2QL.png
[12:29] <Harvy> We've been more lucky before.
[12:30] <Harvy> Strange as we've used this antenna config before.
[12:30] <daveake> Possibly an RP-SMA plug; or plug wasn't tightened
[12:31] <daveake> also possibly a short in the cable
[12:31] <daveake> You need to be as lucky as the Swedes who landed in the middle of forest. On a lake. That was frozen. In front of a skater.
[12:32] <Upu> I got it
[12:32] <daveake> woo
[12:33] <daveake> Close to a decode ?
[12:33] <daveake> There we go
[12:33] <Upu> decoded fine
[12:33] <Upu> but only 29km from me so... :)
[12:33] <daveake> hah
[12:33] <Upu> not the best signal is a polite way of putting it :)
[12:33] <daveake> prediction will take it further away
[12:35] <daveake> 2.9m/s is a tad slow
[12:36] <Upu> is there anything else up ?
[12:36] <Harvy> We were going for a height record.
[12:36] Action: Upu raises an eyebrow
[12:37] <G8FJG> best a few reds http://i.imgur.com/kma6ZKo.jpg
[12:39] <Upu> I suspect antenna is damaged - its fading in and out
[12:40] <Harvy> We were aiming for 4m/s
[12:40] <Upu> you missed :)
[12:40] <Upu> might speed up
[12:40] <Upu> He or H2 ?
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[12:42] <Harvy> Unfortunately one of the guys holding the payload thought it might be good idea to hold in his hands as it took off :-(
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[12:42] <daveake> He.
[12:42] <Harvy> Therefore hitting the ground as it took off... Twice.
[12:43] <Harvy> Sigh
[12:43] <PE1ANS> !flights
[12:43] <SpacenearUS> 03PE1ANS: Current flights: 03CZ_HAB_OL_FOR_MODEL 10(3021), 03XABEN-112 10(830a), 03MSPpi1 10(710c), 03UBSEDS21 434.610 CONTESTIA 16/1000 10(2e88)
[12:44] <Harvy> @upu can you get us any unparsed strings? Just need coordinates.
[12:44] <PE1ANS> !dial MSPpil
[12:44] <SpacenearUS> 03PE1ANS: Can't find a flight doc matching your query
[12:44] <PE2BZ> PE1ANS MSPpi1 has antenna problems
[12:44] <PE1ANS> tnx Ben
[12:44] <PE2BZ> one RX station while at abt 10 km height
[12:45] <Upu> not at the moment sorrty
[12:45] <Upu> very faded
[12:45] <Upu> I have to afk
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[12:51] <Upu> got it again
[12:53] <Harvy> That's a big prediction change.
[12:54] <M0NRD> $$MS$MSPpi1,142,12:53:34,53.62193,-1.76103,12701,35,76,12,9.9,3.2,0.136*E086
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[12:58] <Harvy> Cool @M0NRD we can see you on the map now
[13:01] <M0NRD> a few hills in the way, hopefully RX will improve as gets higher
[13:07] <Geoff-G8DHE-M> If the aerial really is co-linear then it will be radiating out parrallel to the ground rather than downwards ...
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[13:26] <SpacenearUS> New vehicle on the map: 03SP3MCY - 12https://tracker.habhub.org/#!qm=All&q=SP3MCY
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[13:52] <M0NRD> signal had almost disappeared, think it is in null of the antenna, weirdly the higher gain collinear is hardly receiving it
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[13:59] <daveake> Seems that Upu is struggling also
[14:00] <Upu> yeah
[14:01] <Upu> its moving so rapidly compared to my location if I miss one packet the antenna isn't pointing correctly
[14:03] <Upu> also have guests afk
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[14:10] <pb0ahx> $$MSPpi1,240,!3:59z28,53.529Ü2,-3.61503,25499,203a0,12,1u.1,3.2,0.1;7*03A1
[14:11] <pb0ahx> red red red
[14:11] <PE2BZ> which qrg ?
[14:11] <pb0ahx> 250.8
[14:11] <PE2BZ> tnx I see the traces
[14:13] <PE2BZ> pb0ahx would be nice if you can pick one green with height and gps :-)
[14:13] <pb0ahx> here also but via mij foon en teamvieuwer
[14:14] <G8FJG> got a green image packet...changed to az el mount now its high for me
[14:20] <PE2BZ> Nice Ron !
[14:23] <G8FJG> $MSPpi1,275.!4:23:00,53.46061,-1.68269,30911,83,188,12,20.0,3.3,0.138*82E7
[14:23] <PE1ANS> I have a green one
[14:24] <G8FJG> $$MSPpi1,76,14:23:41,53.45569,-1.68423,31085,24,193,12,20.2,3.2,0.138*3BCF
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[14:30] <G8FJG> $$MSPpi1,284,14:29:,53.42231,-1.69639,32246,61,157,12,21.2,3.3,0.139*12A
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[14:56] <G8FJG> $MSPpi1,324,4:55:58,53.32283,-1.5&184,36726,94,13912,3.8,3.3,0.140*9F3BUflZ
[15:00] <daveake> on its way down
[15:07] <G8FJG> 40,35:0644,53.18949,-1.56375,1f31,1312,28.1,3.3,0.140*3DDN
[15:13] <G8FJG> dropped into qrm zone for me now...just 6db above
[15:15] <Upu> I'll give you what I can get
[15:15] <G8FJG> nice going Upu
[15:16] <daveake> Nice to see someone trying
[15:16] <daveake> https://twitter.com/mcrspaceprog/status/840942440861356032
[15:19] <G8FJG> I've got blisters on my fingers...and knots in the feeders!! and its wet out there :-)
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[15:22] <M0NRD> ,53.25306,-1.48461,03574
[15:23] <Harvy> I'm definitely routing for you Upu
[15:24] <M0NRD> decent is quite quick
[15:25] <Upu> thats all you're getting I'm afraid
[15:25] <Upu> gone
[15:25] <Upu> $$MSP¸i0¼366,15:253.257°7,­0.4?;701·42,26,2,12,5.7,»n1,0.032*07EB
[15:25] <M0NRD> gone here too.. no sign of signal anymore
[15:26] <Harvy> Any strings would be good.
[15:26] <Upu> totally gone
[15:26] <Upu> tracker is last readable
[15:27] <M0NRD> last one $$MSPpi1,362,15:25:31,53.25306,-1.48461,03574,29,28,12,4.8,3.2,0.115*C5DF
[15:27] <Upu> given the speed it was coming in its not going to be too far away from last pos
[15:29] <Upu> Did the antenna get damaged on take off ?
[15:29] <daveake> yeah. This will depend on them getting a signal from a nearby road which, if it's far from a road, will be tricky.
[15:30] <Upu> Yagi time
[15:30] <Upu> there is a signal there
[15:30] <Harvy> We are pretty sure it was damaged on take off.
[15:30] <Upu> though given how fast it came in you may need to angle the yagi down 45' to the floor
[15:31] <M0NRD> hopefully missed the outskirts of Chesterfield
[15:32] <Harvy> Lol Upu
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[15:33] <daveake> Upu what speed was that and what alt ?
[15:33] <Harvy> We are heading for upper Newbold for a scan.
[15:33] <Upu> 13m/s @ 3.5km
[15:33] <M0NRD> -13ms/s at 3.574km
[15:34] <daveake> right that's pretty quick :/
[15:34] <daveake> Probably plenty of latex, and too small a chute
[15:34] <Upu> Mach 0.04 apparently
[15:34] <daveake> hah
[15:35] <daveake> splat
[15:35] <Harvy> We seen it where the chute is caught in the balloon line.
[15:35] <Upu> Cup of tea game : strong needs no improvement
[15:35] <Upu> Launch Technique : needs work
[15:35] <daveake> Chase car should really have left a lot earlier since the radio is so compromised
[15:36] <Upu> Start in upper newbold and spiral outr
[15:36] <Upu> you have a yagi ?
[15:36] <M0NRD> locals will have stripped it bare for precious metals ;-)
[15:36] <Harvy> We left the moment it burst.
[15:37] <Upu> locals will be worshipping it as it came from the sky
[15:37] <Harvy> Twitter was slow.
[15:37] <daveake> Yes but you needed to have been close to the balloon when it landed
[15:37] <Harvy> I'm not sure if I have enough battery power for an extended search.
[15:38] <Harvy> @daveake well we were until the decent decided to go sonic.
[15:39] <Upu> let us know how you get on
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[15:42] <Vaizki> sentient payload goes supersonic to avoid capture?
[15:42] <Vaizki> what have you people done...
[15:43] <Harvy> Added too much processing power.
[15:44] <daveake> Fortunately the remainder of the flight path is close to a road
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[16:01] <SpacenearUS> New vehicle on the map: 03KA7NSR-7 - 12https://tracker.habhub.org/#!qm=All&q=KA7NSR-7
[16:02] <SpacenearUS> New vehicle on the map: 03N7ERU-11 - 12https://tracker.habhub.org/#!qm=All&q=N7ERU-11
[16:02] <tweetBot> @stevenjenkinson: @mcrspaceprog Youre landing near The Olde House pub, my old work digs and watering hole, if you need a post landing drink! #ukhas
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[16:38] <Harvy> Tried a few locations but can't get any signal.
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[17:07] <Harvy> Heading back home, waiting for that lucky phone call.
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[18:57] <SpacenearUS> New vehicle on the map: 03X3 - 12https://tracker.habhub.org/#!qm=All&q=X3
[18:58] <SpacenearUS> New position from 03ODZUJF after 039 hours silence - 12https://tracker.habhub.org/#!qm=All&q=ODZUJF
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[18:59] <RocketBoy> about to launch
[19:02] <RocketBoy> launched
[19:04] <PE2BZ> Have a good flight !
[19:06] <RocketBoy> cheers!
[19:06] <pb0ahx> !dial X3
[19:06] <SpacenearUS> 03pb0ahx: Latest dials for 03X0 10(830a): 03644.397 MHz
[19:07] <pb0ahx> !payload X3
[19:07] <SpacenearUS> 03pb0ahx: Payload 03X0 10(830a) 03$$X3 - 03434.65 MHz USB 03RTTY 50/450Hz ASCII-7 none 2
[19:12] <dbrooke> got it on the waterfall
[19:17] Action: PE2BZ is tapping on the desk being impatient....
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[19:20] <dbrooke> and I thought I had to wait a while ... 8-)
[19:21] <PE2BZ> ;-)
[19:22] <dbrooke> at least the signal reached me before food became ready just now
[19:23] <PE2BZ> Enjoy dinner :-)
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[19:36] <pb0ahx> $$X3,160,19:35:54,51.88515,1.40392<1510.9*6D72
[19:37] <PE2BZ> $$X3,164,19236:T4,51.88365,1.4p617,U7D07
[19:39] <SA6BSS-Mike> prediction http://predict.habhub.org/#!/uuid=0209d0f391aacd854b80fa0e3386fa7518228856
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[19:45] <RocketBoy> its a latex floater - if it does float it should be about 25000m so more like http://predict.habhub.org/#!/uuid=1bc0d9ed565c26848499dd017126e5ef4ec7129e
[19:45] <RocketBoy> *if* it works
[19:46] <PE2BZ> Green @ 1844 meter :-)
[19:46] <PE2BZ> Cross thumbs :-)
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[19:46] <PE2BZ> Battery powered ?
[19:48] <RocketBoy> yep - should be good for 24Hr
[19:58] <pb0ahx> nice sig from X3
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[20:02] <RocketBoy> yeah - pretty much like the last flight - using a vertical dipole - withe the upper element running alongside the batteries,pic amd GPS
[20:03] <RocketBoy> inserted in the neck of the balloon
[20:05] <pb0ahx> working great
[20:09] <RocketBoy> oh dear - leveling off
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[20:18] <SpacenearUS> New position from 03MONSCH after 039 hours silence - 12https://tracker.habhub.org/#!qm=All&q=MONSCH
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[20:21] <Matt_LMK> Nice signal from X3 :)
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[20:30] <pb0ahx> x3 is now a lot weaker here
[20:33] <pb0ahx> and back
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[20:48] <pb0ahx> x3 going down ???
[20:48] <pb0ahx> thats fast
[20:49] <pb1dft__> couldn't receive it so i shot it down
[20:49] <pb1dft__> ;)
[20:51] <RocketBoy> yeah its comming down allright - Ive seen it happen before - not enough free lift for a nighttime float.
[20:53] <pb0ahx> not enough gas
[20:53] <RocketBoy> Its either srung a small leak or its got what I call thermal collapse
[20:53] <RocketBoy> ive had one take off again in the morning
[20:55] Nick change: Rebounde1 -> Reb-SM0ULC
[20:55] <PE2BZ> RocketBoy if / when possible, over here at the main land, a frequency rounded at 12.5 kHz would be better. Like 434.6625 or 434.6375 . They use a lot of telemetry transmitters for cranes and so on, on rounded multiples of 25 kHz.
[20:57] <PE2BZ> At the moment, this is on ¨your frequency¨ http://imgur.com/a/W36Zv
[20:57] <RocketBoy> I think what happens is if the inside gets colder than the outside (someohow) the denser gas inside causes the balloon to descend - then becuse of the lapse rate the outside is always warmer than the inside as it descends - forcing it down
[20:57] <RocketBoy> must do the maths some day
[20:58] <RocketBoy> thanks PE2BZ: thats my last 434.650 transmitter anyway - trying to get rid of old kit
[20:59] <PE2BZ> You succeeded ;-)
[21:00] <RocketBoy> yeah - they have a nasty habbit of coming back - Ive enevn had some returned to me that were floating in the sea for a couple of weeks
[21:01] <PE2BZ> And you where able to get them operational again ?
[21:02] <RocketBoy> nope - corrosion/rusted to hell
[21:02] <PE2BZ> ok.
[21:02] <RocketBoy> but still had a sticker on the side - so people found them washed up and rang me
[21:03] <RocketBoy> laneded mid channel - but washed up just up the coast
[21:04] <PE2BZ> Good quality stickers :-) ¨we¨ had 2 flights from UK which arrived at ¨Terschelling¨ and where found and returned. Eggsploren and one other flight
[21:04] <RocketBoy> OK gonna scoot to the car and see if I ca hear its last words
[21:04] <PE2BZ> which almost (12 km difference) landed on the nearby beach
[21:04] <RocketBoy> glug glug glug
[21:04] <PE2BZ> Lol...
[21:05] <PE2BZ> Good luck. I switched the setup to Contestia, ready for tomorrow.
[21:05] <RocketBoy> actually there are some sand banks out there
[21:05] <RocketBoy> so you never know
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[21:05] <PE2BZ> It descends as slow as it ascended...
[21:06] <PE2BZ> ON7NDR is on one of those sand banks :-)
[21:06] <PE2BZ> I am afk. Good luck for next flights !
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[21:31] <dbrooke> oh dear, 3m, wrong kind of float 8-(
[21:33] <RocketBoy> im thinking sand bank or container ship
[21:37] <dbrooke> seems to have moved about 1km at <10m altitude
[21:40] <RocketBoy> there are a couple of lights where the yagi is pointing
[21:40] <SA6BSS-Mike> https://www.marinetraffic.com/en/ais/home/centerx:1/centery:52/zoom:11
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[21:41] <daveake> Hah same map I'm looking at :)
[21:43] <daveake> Nothing on there that's close enough
[21:43] <SA6BSS-Mike> cant see any shipps in that area, must have been hovering just above water for some time before it dipped
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[21:51] <RocketBoy> well there is def a bright light out there
[21:51] <RocketBoy> could be sealand
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[22:07] <jiffe> anyone used the AX5043 for aprs?
[22:08] <richardeoin> yup
[22:08] <richardeoin> works well for transmit
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[22:10] <jiffe> cool, I see it handles afsk natively so it caught my eye
[22:13] <richardeoin> it's a nicer than hacking it with some other IC
[22:14] <richardeoin> tt7 has a nice write-up on other ways of doing it, if you're interested in that http://tt7hab.blogspot.co.uk/2017/02/aprs-automatic-packet-reporting-system.html
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[22:23] <jiffe> sweet, there's a lot of useful info there
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[23:23] <SpacenearUS> New vehicle on the map: 03VK5QI-9_chase - 12https://tracker.habhub.org/#!qm=All&q=VK5QI-9_chase
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[23:32] <SpacenearUS> New position from 03YPADSONDE after 032 days silence - 12https://tracker.habhub.org/#!qm=All&q=YPADSONDE
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[23:45] <SpacenearUS> New position from 03RSIST after 0310 hours silence - 12https://tracker.habhub.org/#!qm=All&q=RSIST
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[00:00] --- Mon Mar 13 2017