highaltitude.log.20160515

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[09:09] <SpacenearUS> New vehicle on the map: 03R2AGQ-11 - 12http://tracker.habhub.org/#!qm=All&q=R2AGQ-11
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[09:21] <pb0ahx> !flights
[09:21] <SpacenearUS> 03pb0ahx: Current flights: 03UBSEDS15 434.600 CONTESTIA 16/1000 10(d812)
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[10:51] <PE2BZ> Good Morning, all... I have setup imagemagick and I am able to convert the ssdv.jpg in the pits/tracker folder to add my callsign and location to the bottom of the screen. Is it possbile to add this command somewhere to have it added to all ssdv images which are grabbed from my camera ?
[10:52] <daveake> Have a look at the process_image.sample file in the PITS distro
[10:52] <daveake> Rename to process_image and change to suit your needs
[10:53] <PE2BZ> Thanks Dave
[10:54] <daveake> This is what the script does at present http://ssdv.habhub.org/images/2016-05-15--00-01-36-PI868-650B.jpeg?u=346
[10:54] <daveake> Well, the (max_alt) bit is a recent mod not pushed yet, but otherwise it's the same as the released version
[10:58] <PE2BZ> Looks neat. I´ll give it a try and then I fire up Herman to receive my images. By the way: did you read my question on UKHAS if the LoRa 434 module does receive on 868 MHz ? I noticed that (with about 10 dB loss) it does tx on 145 and 868 MHz also.
[10:59] Action: PE2BZ afk doorbell rings
[10:59] <mfa298> PE2BZ: I don't know about the other lora modules, but in some of the other similar modules the chip looks to be the same but the impedance mantchign circuit is different (tailored to the appropriate band)
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[11:08] <daveake> Yeah they do work, but I don't know how well.
[11:09] <daveake> I've had 868's on 434 and vice versa locally
[11:09] <Darkside> usually a low pass filter
[11:09] <Darkside> so it'll 'work' for certain definitions of work
[11:10] <Darkside> i know the 434mhz modules i have end up with crap all output power when re-tuned to 144mhz
[11:10] <Darkside> sorry, no
[11:10] <Darkside> they have OK output power
[11:10] <Darkside> but their 2nd harmonic also OK output power
[11:10] <Darkside> and the 3rd harmonic
[11:10] <daveake> hah
[11:11] <Darkside> i confirmed that with a fieldfox
[11:11] <daveake> Might be ok for the receiver to be mismatched then
[11:11] <Darkside> just dont transmit!
[11:11] <Darkside> i do susoect there would be loss onr eceive too
[11:11] <Darkside> you'd have to try and quantify it
[11:11] <daveake> ditto
[11:12] <daveake> They're cheap enough that if you want to rx 868, just buy an 868 module
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[11:47] <PE2BZ> thanks for input, all. I will give the RX part a try tomorrow. I know they are not expensive, but I have only one spare slot on my board. Have to decide if it gets a 434 or 868 module.
[11:48] <PE2BZ> And 868 is not a HAM band and does limit me to 10 mW
[11:52] <daveake> Get another Pi :)
[11:53] <daveake> It would also be possible to make your own LoRa board to add 3rd/4th LoRas. You'd need to run a second copy of the gateway, and connect the modules to the other SPI bus (and change the s/w to suit), but it could be done
[11:54] <PE2BZ> 1 PiTs Pi, 1 wspr Pi, 1 Domoticz Pi, I guess indeed I need another one ;-)
[12:00] <mfa298> can you have too many Pis, I've got 6 or 7 running currently
[12:04] <PE2BZ> I don´t think one can have to many PI´s.... If each one serves a goal... For example I tried WSPR on the same Pi which has the PiTs board connencted, but that does not work because some GPIO are allready wired. That means the nead for another PI. On the other hand, the wspr Pi can also run the DVB TX software. So, it´s a multipurpose Pi
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[12:41] <PE2BZ> daveake one of the first lines of the process_image starts with echo Processing image $2 for channel $1
[12:41] <PE2BZ> . I expected to see that message appear on the console but it´s not shown there. I ¨needed¨ the message as a kind of prove that the conversion runs. Your script indeed creates an SSDV.JPG with the telemetry output, and my script does not. To do some tracing I would need the output of the ECHO lines on my screen. Any hints on that ?
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[12:44] Action: PE2BZ switched from PuTTy to MobaXterm for his Windows computer. Screen in multiple colours is much better readable, and even better, the ¨home¨ folder of the current user is shown in a separate window and images and files can be directly viewed by the Windows machine.
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[12:58] <daveake> Cheers, trying, looks interesting
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[13:16] <PE2BZ> daveake any hints on the missing ECHO output ?
[13:17] <daveake> ?
[13:17] <PE2BZ> About 15 lines up ?
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[13:18] <daveake> no
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[13:38] <PE2BZ> Solved the echo problem by editing the process_image on its own until succesfull :-)
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[14:32] <SpacenearUS> New vehicle on the map: 03KC9VVJ-11 - 12http://tracker.habhub.org/#!qm=All&q=KC9VVJ-11
[14:39] <SpacenearUS> New position from 03PI868 after 0314 hours silence - 12http://tracker.habhub.org/#!qm=All&q=PI868
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[14:42] <SpacenearUS> New vehicle on the map: 03test_chase - 12http://tracker.habhub.org/#!qm=All&q=test_chase
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[15:00] <pb0ahx> PI868 can u tirn ur camera hihi :-))
[15:00] <pb0ahx> tirn =turn
[15:03] <SpacenearUS> New vehicle on the map: 03KW4CL-11 - 12http://tracker.habhub.org/#!qm=All&q=KW4CL-11
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[16:10] <SpacenearUS> New vehicle on the map: 03VE6TS-11 - 12http://tracker.habhub.org/#!qm=All&q=VE6TS-11
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[17:50] <SpacenearUS> New position from 03BlueDot after 032 days silence - 12http://tracker.habhub.org/#!qm=All&q=BlueDot
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[17:51] <Blindsight> Anyone here
[17:51] Nick change: Blindsight -> Guest70541
[17:53] <Geoff-G8DHE_> 188 of us have a presence from the list!
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[17:55] <PE2BZ> I am here....
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[18:04] <Guest62068> hi all, I'm a newbie to HAB and am planning a launch in mid-June. I've compiled a list of kit for the flight computer, but was just hoping to check that I'm getting the right stuff before I splash my cash!
[18:04] <Upu> hey there
[18:04] <Upu> which country are you launching in ?
[18:04] <Guest62068> UK
[18:04] <Geoff-G8DHE_> I month build and test from scratch ?
[18:04] <Guest62068> launching from near Cambridge
[18:05] <Guest62068> yes...
[18:05] <Guest62068> :)
[18:05] <Upu> free advice
[18:05] <Upu> launch when you're ready not to a dead line
[18:05] <Upu> there is lots to take in
[18:05] <Upu> and the more you do the higher chance of successful recovery you will have
[18:06] <Guest62068> thanks for the the advice
[18:06] <Geoff-G8DHE_> and the weather may not be to your liking either!
[18:06] <Upu> in fact 1 sec
[18:07] <Geoff-G8DHE_> Applying for a NOTAM from CAA will take a month anyway!
[18:07] <Upu> Have a read of this
[18:07] <Upu> http://www.daveakerman.com/?p=1732
[18:07] <Guest62068> I have applied for one already
[18:07] <Upu> then read it again
[18:07] <Upu> and then come back and ask questions :)
[18:07] <Upu> which tracker are you looking at anyway ?
[18:08] <Guest62068> thanks for the link - I have been googling all day but didn't see that guide - looks very approachable
[18:09] <Guest62068> I have an Arduino Duemilanove already
[18:09] <Guest62068> was going to get a Radiometrix NTX2
[18:09] <Guest62068> and a uBLOX MAX-M8Q (5V converted)
[18:10] <Upu> NTX2B
[18:10] <Upu> don't use the NTX2 it doesn't have a TCXO in it and drifts
[18:10] <Guest62068> my bad, meant ntx2b
[18:10] <Guest62068> this one https://store.uputronics.com/index.php?route=product/product&path=61&product_id=60
[18:11] <Guest62068> I'm a bit confused about aerials
[18:11] <Upu> yeah
[18:11] <Upu> thats my shop btw
[18:11] <Guest62068> oh, cool :)
[18:12] <Guest62068> not sure which frequency to select, what would you recommend
[18:12] <Guest62068> ?
[18:12] <Upu> I'll just give you a random one
[18:12] <Upu> you can either use it on that or reprogram it via your Arduino
[18:12] <Guest62068> cool ok
[18:13] <Guest62068> in terms of aerials, do I use the same one for the radio and the gps?
[18:13] <Upu> nope
[18:13] <Upu> The GPS board you mentioned has a GPS antenna on it
[18:14] <Upu> the radio you can make an antenna
[18:14] <Guest62068> yes
[18:14] <Upu> where are you launching from in Cambridge ?
[18:14] <daveake> Aerials are usually optimised for a single frequency, and GPS runs at a much higher frequency than our telemetry does
[18:14] <adamgreig> these days i reckon most antennas are optimised for at least two and probably four frequencies
[18:14] <Guest62068> ellsworth
[18:15] <adamgreig> quite tempted to rig up a 868 and GPS L1 patch antenna
[18:15] <adamgreig> be ideal for the bottom of a hab payload
[18:15] <adamgreig> flat, robust, dual frequency
[18:15] <adamgreig> not to confuse the issue at hand
[18:15] <adamgreig> you should definitely use two antennas Guest62068
[18:15] <Upu> Guest62068: you know its a private site ?
[18:16] <Upu> you can't just turn up and use it
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[18:16] <Guest62068> the place I looked at has a public footpath
[18:17] <Upu> I guess you found it from the UKHAS Wiki ?
[18:17] <Guest62068> On the drift predictor - I wanted to go with a tried and tested option
[18:18] <Guest62068> I haven't seen that bit of the ukhas wiki
[18:18] <Upu> ok its private land
[18:18] <Upu> so you need the land owners permission to launch from there
[18:18] <SpacenearUS> New vehicle on the map: 03IK8SUT-11 - 12http://tracker.habhub.org/#!qm=All&q=IK8SUT-11
[18:18] <Upu> bet you're glad you came on here ? :)
[18:19] <Guest62068> haha oh dear :)
[18:19] <Guest62068> are you referring to a specific bit of ellsworth though?
[18:19] <Upu> we can put you in touch with the chap who launches from there though
[18:19] <Upu> yes but its the best place to launch from
[18:20] <Guest62068> that would be very helpful
[18:21] <Upu> but if you take one thing home tonight please let it be don't launch until you're ready, a month isn't enough time
[18:21] <Guest62068> you are persuading me of that quite quickly
[18:21] <Guest62068> :)
[18:22] <Guest62068> I was looking at this antenna tutorial https://ukhas.org.uk/guides:payload_antenna
[18:22] <Guest62068> is that what most people do for the telemetry?
[18:23] <daveake> yes, they work very well
[18:24] <Guest62068> cool, thanks daveake
[18:25] <Guest62068> I was going to go for a 1000g balloon - is that a bit ambitious for a first flight or about right?
[18:26] <Geoff-G8DHE_> Depends on payload, is it just atracker or camera etc ?
[18:27] <Guest62068> I was going to put one of these GoPro imitations in it http://www.amazon.co.uk/dp/B00J02XVYG
[18:27] <Guest62068> weighs about 140g with case apparently
[18:28] <Geoff-G8DHE_> Cases tend to fog up
[18:28] <Guest62068> ah ok
[18:28] <Guest62068> would you make a window in the payload instead?
[18:29] <Upu> nope just stick it straight out the side
[18:29] <Geoff-G8DHE_> A hole yes nothing covering it els moisture is trapped
[18:29] <Guest62068> ok
[18:30] <Guest62068> I was a bit worried about doing that just because of the cold, I thought the battery would die very quickly
[18:30] <Upu> they run quite hot
[18:30] <Geoff-G8DHE_> Low air pressure means cooling is poor
[18:31] <Upu> in fact most of the electronics in the box keep warm, mainly as there is no air to convect the heat away
[18:31] <Geoff-G8DHE_> Batteries can indeed be a problem, the wiki has information on the only reliable type!
[18:31] <Guest62068> OK that's good news
[18:32] <Guest62068> yep I saw that one I think! I was going to go with lithium energisers
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[18:34] <Geoff-G8DHE_> Right latest gateway s/w loaded so ready gor the morning daveake
[18:35] <Mark_B> Good evening
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[18:37] <Mark_B> I'm unable to get the car tracker working on my app recently. I have had it working in the past.
[18:38] <Mark_B> I have checked that teh settings allow apps to use my location
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[18:38] <Mark_B> it works with google maps, but not spacenera
[18:38] <Mark_B> *spacenear
[18:39] <Mark_B> I've checked that I have data roaming selected too; the rest of spacenear functionality is fine
[18:40] <Mark_B> Any ideas?
[18:41] <Mark_B> Spacenear does display 'no location' in the header to the left of the balloon icon...
[18:42] <Geoff-G8DHE_> Some of the browsers don't always pass on the data
[18:42] <Mark_B> kk
[18:43] <Mark_B> I'll keep tinkering
[18:44] <Mark_B> Thanks again Geoff for your help last Thursday, it was very much appreciated
[18:44] <Geoff-G8DHE_> No problems good fun as usual!
[18:44] <Mark_B> :)
[18:49] <Guest62068> thanks all for your advice :)
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[20:21] <SpacenearUS> New vehicle on the map: 03KM6AOX-11 - 12http://tracker.habhub.org/#!qm=All&q=KM6AOX-11
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[21:27] <amell> UKHAS conference next door to me and I'm on holiday 20 August :( :( !!!
[21:27] <amell> Sooo annoying! I have been to the astro lecture hall a number of times before and it's a great place for a conference
[21:34] <amell> Any recommendations for a case for rpi3 with LoRa board? Tried a couple now and they don't fit.
[21:35] <amell> The height seems to be the problem
[21:38] <daveake> https://store.uputronics.com/index.php?route=product/product&path=66_67&product_id=76
[21:40] <amell> Interesting name for a case! Was hoping for some side protection but this will probably have to do.
[21:40] <amell> Main thing is child fingers in the side...
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[21:49] <Ian_> Ha ha, I think that it's aptly named amell, you are like a dog with a bone re the 'case'. :)
[21:50] <Ian_> You'll just have to change your holiday. A bit of matrimonial creativity!
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[21:56] <amell> It's all booked. Bummer. I heard there was honey
[21:56] <amell> My fingers are crossed for up/down weather for that weekend
[21:57] <Ian_> Oh yes, there have been a few lucky notables.
[21:58] <Ian_> It's very nice too. Since the autumn, I have sold 270lbs to . . . beekeepers.
[21:58] <SIbot> In real units: 270 lbs = 122.5 kg
[21:58] <Ian_> Shush SIbot, that doesn't sound quite so impressive, but nice to know you are awake
[21:59] <amell> How many hives do you run?
[22:00] <amell> My only bee experience is these pesky masonry bees who keep invading my outhouse each summer. I don't know why they keep coming back
[22:12] <Ian_> About fifteen. At the moment it's on the increas from a dozen coming through the winter.
[22:13] <Ian_> Interesting project tonight. I have to move a huge hive double 14x12 with 17 good frames of brood. They have earned the distdain of a neighbour who got a gratuitous
[22:14] <amell> What can I do about these masonry bees? They congregate right by the door...
[22:14] <Ian_> sting or two the other day. So tonight, under a red LED floodlight they will suddenly become five nucs and be moving out in the morning. Still a bit of preparatory work to do.
[22:16] <Ian_> You can enjoy them . . . they shouldn't really bother you. Alternatively put something up that means they have to change their approach. I watched one a while back fly into a hole in some mortar, it was just a screw hole . . .
[22:16] <amell> Don't you need five queens for five nucs?
[22:17] <Ian_> I've been keeping bees for eight years now. Yes, going to pop in ripe queen cells with a protector so that they can't be killed by the resident queen,
[22:17] <amell> Interesting animals!
[22:18] <Ian_> She will hopefully be superseded, but last time I tried that it worked until the new queen went on a mating flight and wasn't allowed back into the hive.
[22:18] <amell> Where do you get the queen cells from? Are they easy to find in the frames of the other hives?
[22:19] <Ian_> She ended up with an enterage in a box half way up the garden path.
[22:20] <Ian_> I have worked this last eight years with a beefarmer friend, who runs some 400 colonies. At the moment he has a fortuitous glut of queen cells coming through and not got the bees to take them all, so as my work involves only \
[22:21] <Ian_> travelling expenses, I do get a few perks like dibs on a couple of queens, but usually take only cells or a couple of virgins each year.
[22:21] <Ian_> used to work 2 days a week, but the last three years it has been one day a week, but my garden still doesn't get weeded :)
[22:22] <Ian_> Whole orchestra 34 got a pound of honey at Christmas
[22:25] <Ian_> I'll let you know if the red floodlight does the trick. The bees shouldn't fly as they don't see red light and when the lights go out bees and wasps stop flying. Do it in a honey room full of spare bees and they all go thunk as they hit the flloor or table surface.
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[00:00] --- Mon May 16 2016