highaltitude.log.20180130

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[00:23] <SpacenearUS> New vehicle on the map: 03N1950259 - 12https://tracker.habhub.org/#!qm=All&q=N1950259
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[02:59] <SpacenearUS> New position from 03BSS13 after 0317 hours silence - 12https://tracker.habhub.org/#!qm=All&q=BSS13
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[05:32] <labjg> Anyone on here got experience purposely underfilling a latex HAB to get a long flight, remotely terminating etc.?
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[05:39] <Darkside> labjg: yo
[05:39] <labjg> yo
[05:39] <Darkside> yes to the above
[05:39] <Darkside> though im on my phne
[05:39] <Darkside> phone*
[05:39] <Darkside> so hard to type
[05:40] <Darkside> but we regularly fly a hot wire cutdown, have recently been experimenting with a pyro cutdown.
[05:40] <Darkside> radio control via lora, all open source
[05:41] <Darkside> not compatible with daves stuff, as it wqs developed before his lora system was properly fleshed out
[05:42] <SpacenearUS> New vehicle on the map: 03khawar_chase - 12https://tracker.habhub.org/#!qm=All&q=khawar_chase
[05:43] <Darkside> floating latex balloons is a bit of a crapshoot, hwoyee balloons seem best for that though. target <3m/s asc rate on the larger balloons and you will likely float
[05:44] <Darkside> we accidebtally floated a hwoyee 1600g all the way to sydney (before we had a cutdown)
[05:44] <Darkside> we try and avoid that nowdays
[05:52] <labjg> haha
[05:52] <labjg> nice.
[05:52] <labjg> ok so maybe we can chat later
[05:52] <labjg> cutdown is fine.. hoping to use daveake's board with hot wire
[05:53] <labjg> i'm more curious about how to decide on the fill
[05:53] <Darkside> target a slow ascent rate basially
[05:53] <labjg> and how to guess the float altitude :/
[05:54] <Darkside> yeah thats harder
[05:54] <Darkside> will depend a lot on the individual balloon i think
[05:54] <labjg> yeah must do
[05:54] <Darkside> which of daveakes boards do you mean?
[05:55] <Darkside> i use a board from upu
[05:55] <labjg> all in the properties of the latex i presume
[05:55] <labjg> yeah pits zero
[05:55] <Darkside> oh ok
[05:55] <Darkside> i use an avr based board
[05:55] <labjg> not tried to get the half-duplex working yet
[05:55] <Darkside> and the cutdown is commanded from yhe ground
[05:55] <labjg> dave has some examples buried in github
[05:56] <Darkside> sure
[05:56] <labjg> yeah running dave's lora gateway too
[05:56] <Darkside> the lora link has worked well for us
[05:56] <Darkside> yeaj we dont use that
[05:56] <labjg> pi with lora daughter board
[05:56] <Darkside> we rolled our own
[05:56] <labjg> ofc you did :)
[05:56] <Darkside> didnt want to use a pi as the primary telemetry
[05:57] <labjg> daveake has a youtube vid of remote cutdown..
[05:57] <Darkside> the lora payload wr use will run for days off a single aa
[05:57] <Darkside> nice and light
[05:57] <Darkside> go google vimeo horus 25
[05:57] <labjg> ..but nothing in the distro yet
[05:57] <Darkside> and look at the date :-)
[05:57] <labjg> he's such a temptress with these new features
[05:57] <labjg> >.<
[05:57] <Darkside> that wqs the first cutdown payload well before lora came out
[05:57] <labjg> cool
[05:58] <Darkside> but the cutdown mechanism is still thr same
[05:58] <Darkside> just now using a lora modem for control
[05:58] <Darkside> theres a close up vid of the cutdown in action
[05:59] <Darkside> jeez 5 years ago
[06:00] <SpacenearUS> New position from 03icarusIV after 038 hours silence - 12https://tracker.habhub.org/#!qm=All&q=icarusIV
[06:00] <Darkside> ill jave all of my payloads back tonight and can take photos
[06:00] <Darkside> might give some ideas
[06:03] <labjg> cool
[06:03] <labjg> yeah just watched vid
[06:03] <labjg> you trailblazers!
[06:03] <labjg> heh
[06:03] <Darkside> dodgy fsk via ssb uplink
[06:04] <Darkside> but i could do 50w to ensure it worked :p
[06:04] <Darkside> now we do thr same with 25mw of lora...
[06:04] <labjg> ha! nice
[06:04] <labjg> ok gotta run
[06:04] <Darkside> cya
[06:04] <labjg> ttfn
[06:13] <SpacenearUS> New vehicle on the map: 03N2020043 - 12https://tracker.habhub.org/#!qm=All&q=N2020043
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[07:01] <SpacenearUS> New position from 03U3S21 after 0317 hours silence - 12https://tracker.habhub.org/#!qm=All&q=U3S21
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[07:37] <SpacenearUS> New vehicle on the map: 03N4810347 - 12https://tracker.habhub.org/#!qm=All&q=N4810347
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[09:17] <SpacenearUS> New vehicle on the map: 03N4620544 - 12https://tracker.habhub.org/#!qm=All&q=N4620544
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[09:29] <_Jordan> Gm guys
[09:32] <SpacenearUS> New position from 03LU1ESY-3 after 0315 hours silence - 12https://tracker.habhub.org/#!qm=All&q=LU1ESY-3
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[11:22] <SpacenearUS> New vehicle on the map: 03M4453146 - 12https://tracker.habhub.org/#!qm=All&q=M4453146
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[12:50] <SpacenearUS> New vehicle on the map: 03N4810987 - 12https://tracker.habhub.org/#!qm=All&q=N4810987
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[13:00] <Owen> Hi
[13:02] <Owen> Gangsters?
[13:11] <SpacenearUS> New vehicle on the map: 03M2413056 - 12https://tracker.habhub.org/#!qm=All&q=M2413056
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[13:56] <SpacenearUS> New vehicle on the map: 03J4513003 - 12https://tracker.habhub.org/#!qm=All&q=J4513003
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[14:18] <SpacenearUS> New vehicle on the map: 03ABERD - 12https://tracker.habhub.org/#!qm=All&q=ABERD
[14:21] <SpacenearUS> New vehicle on the map: 03Zs5ayc_chase - 12https://tracker.habhub.org/#!qm=All&q=Zs5ayc_chase
[14:25] <SpacenearUS> New vehicle on the map: 03EPSOM - 12https://tracker.habhub.org/#!qm=All&q=EPSOM
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[14:33] <pb0ahx> !flights
[14:33] <SpacenearUS> 03pb0ahx: Current flights: 03Epsom Stem Group 2 10(eb23)
[14:34] <pb0ahx> !payloads eb23
[14:34] <SpacenearUS> 03pb0ahx: Payload 03Epsom 2018 10(eb23) 03$$EPSOM - 03434.6 MHz USB 03RTTY 50/450Hz ASCII-8 none 2
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[14:50] <tibs01> the recievers for these balloons they just use aprs ?
[14:50] <tibs01> on 2m ?
[15:02] <PE2BZ> tibs01 which balloons ?
[15:02] <PE2BZ> Epsom ?
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[15:42] <Laurenceb> http://www.ebay.co.uk/itm/180W-CNC-Brushless-DC-Servo-Motor-Dirve-Kit-0-57Nm-3000rpm-BLM57180-1000-ACS606/122452044148?epid=9009038791&hash=item1c82b5e974:g:gAkAAOSwPCVX5eDN
[15:42] <Laurenceb> not bad, not bad at all
[15:51] <PE2BZ> Any update on the Epsom launch ?
[15:55] attix_ (3e9cfe62@gateway/web/freenode/ip.62.156.254.98) joined #highaltitude.
[15:55] <PE1ANS> PE2BZ hoi Ben,, vraag me af of er nog wat van komt..
[15:55] <PE2BZ> Ha Jan, Herman en ik ook :-)
[15:56] <PE1ANS> staan nu ook niet meer op de kaart
[15:56] <PE2BZ> Maar de soldeerbout staat aan en ik ben net aan het bedenken om 91 k en 11 k te vervangen door 180 k en 22 k
[15:57] <PE1ANS> Heb 100K en 12K gebruikt,, je kan hetverder in de software fine tunen
[15:57] <PE2BZ> Ook een idee :-)
[15:59] <PE2BZ> Only problem is there is no image of the resistor numbers on the PCB...
[15:59] <PE2BZ> Back to English ;-)
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[16:01] <kokey> I guess you have a different rhymes in Dutch for the colour codes of the stripes on a resistor
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[16:02] <PE2BZ> We have. It´s a sad story however, it ends at a graveyard ;-)
[16:02] <kokey> at least it doesn't start with rape
[16:02] <PE2BZ> Zij brengt rozen op Gerrits Graf bij vies grauw weer
[16:02] <PE1ANS> PE2BZ uhh dat gaat me niet goed lukken,, maak wel een fototje,, app je zo wel
[16:03] <PE2BZ> Dank je Jan!
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[16:39] <g8fjg> EPSOM 434.426 50/459
[16:39] <g8fjg> afk
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[16:56] <PE2BZ> thanks Ron
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[17:10] <Alex_> Hi
[17:11] <Alex_> I'm trying to use dl-fldigi but all im getting is random characters
[17:11] <Alex_> and the waterfall doesnt seem to show the 2 nice lines for the pi in the sky
[17:11] <Alex_> despite cubicsdr showing them nicely
[17:11] <Laurenceb> http://www.solidenergysystems.com/technology/
[17:13] <Alex_> can anyone help me?
[17:14] <Ian_> post images and someone may be able to assist you
[17:16] <Alex_> thanks
[17:16] <Alex_> can i post them direclty in here or where?
[17:16] <Ian_> imagur.com and post the link here
[17:17] <Alex_> cheers
[17:18] <Alex_> https://imgur.com/a/fOXTs
[17:18] <Alex_> this is a screenshot of me right now
[17:18] <Alex_> ive been following the ukhas guides step by step but its probably still a noobie mistake
[17:22] <Alex_> can anyone help?
[17:23] <Ian_> In the first instance it has to be a frequency error as you should have a couple of peaks on dl_fldigi.
[17:23] <Ian_> What distance between tx and rx?
[17:23] <Alex_> frequency error where?
[17:24] <Alex_> and if you mean physically, the transmitter and receiver are probably only a couple of metres apart in this room. Is that too close?
[17:25] <Ian_> Receiver tuning determines the audio tones out. Perhaps turn down the gain a little so that the peaks on cubic-sdr are more pronounced with less of the shoulder
[17:26] <Alex_> im a bit of a novice. What does shoulder mean in this context?
[17:27] <Ian_> First object is to get a signal image in dl_fldigi that is centred around 1.25 - 1.5kHz
[17:28] <Alex_> https://imgur.com/a/RNUBf
[17:28] <Alex_> I turned 'automatic gain' off in the cubicsdr setting and moved the gain tuner down to 15
[17:29] <Alex_> but i dont think it has made much difference, unless I did that wrong
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[17:32] <Alex_> could my bandwidth setting be too high/low, could that make a difference?
[17:32] <Ian_> Turning off the automatic gain was a good idea. The idea being to sweep the tuning and adjusting the rx gain to get a convincing image in dl_fldigi to work with.
[17:33] <Alex_> btw are the peaks on dl-fldigi meant to be red or blue?
[17:33] <Alex_> because on the guide i think there's 2 clear blue lines but on mine there seems to be one reddish one
[17:34] <Ian_> Blue is the background, Red is what you are looking for and yellow indicates a lesser signal level
[17:34] <Alex_> so im looking for 2 red lines close together like on cubic sdr?
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[17:36] <Alex_> i dont understand how it can seem so clear in cubic sdr but not in dl-fldigi
[17:37] <Ian_> You are certainly looking for two peaks, (lines) having got two well defined lines then adjustment of rx level will help.
[17:37] <Alex_> https://imgur.com/a/MJd7e
[17:38] <Alex_> how do you adjust rx level?
[17:39] <Ian_> rx gain on cubic-sdr. If you change your tuning slowly, does the image on fldigi move correspondingly?
[17:41] <Ian_> What is your shift between mark and space tones?
[17:41] <Ian_> On the tx
[17:43] <Alex_> yeah if i tune slightly higher on the frequency on cubic sdr the reddish line does go up a bit on dl-fldigi
[17:44] <Alex_> if you mean the settings on dlfligi i have 'carrier shift' set to 'custom' and 'custom shift' set to 910
[17:44] <Alex_> copying the guide
[17:44] <SpacenearUS> New position from 03LU1ESY-3 after 038 hours silence - 12https://tracker.habhub.org/#!qm=All&q=LU1ESY-3
[17:45] <Ian_> What is the shift on your tx signal, or are you presently unsure?
[17:46] <Alex_> how do i find out the shift on my tx signal?
[17:46] <Ian_> Set by design . . . what tracker are you using.
[17:46] <Alex_> i am using the pi in the sky
[17:46] <Alex_> i think its default was 434.250
[17:47] <Ian_> OK. baud speed?
[17:47] <Alex_> on the pi in the sky transmitter? I think the default is 300
[17:48] <Ian_> OK, so tune your receiver to see if you are indeed receiving the signal and not just an image.
[17:48] <Alex_> how do i do that?
[17:48] <Alex_> how do I tell the difference between the signal and an image?
[17:49] <Ian_> The signal will be stronger
[17:49] <Alex_> stronger for the signal or for the image?
[17:50] <Alex_> what do you want me to do with the receiver?
[17:50] <Ian_> Just like tuning in a CW signal, sweep to aquire the signal and then get it comfortably tuned. I don't suppose that you can hear the signal as well?
[17:51] <Ian_> The object is to tune it in and don't necessarily imagine that the first peak that you find is necessarily the right one.
[17:51] <Alex_> i have turned 'listen' on the virtual audio cable on so yes i can hear the beeps
[17:52] <Alex_> if i unplug the pi in the sky, this double peak goes away, is this enough to tell it is correct?
[17:52] <Alex_> or would images send at different signals to the proper signal?
[17:54] <Ian_> OK the signal goes away when you switch of the PiSky - Good. If you are receiving an image of the signal, rather than the prime signal, the level will be down and of course tones may be reversed. First we need to get a convincing display on fldigi, then we can look at how to decode it.
[17:55] <Alex_> what is an 'image of the signal' what do you mean by that?
[17:56] <Alex_> and i've looked around similar frequencies on cubic sdr and all the other peaks seem weaker or more spread out that this one
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[17:59] <Ian_> OK, maybe move the tx slightly further away. We want a well defined image in fldigi. It would be a good idea if we had a wav file of the appropriate baud speed and approx shift to feed directly into dldigi so that you had a picture of the goal we are trying to achive.
[18:02] <Alex_> could you please define the term 'shift'? Do you mean the shift between the frequency being transmitted and the normal frequency?
[18:02] <Ian_> The distance between the mark and tone frequency
[18:02] <Ian_> in Hz
[18:03] <Ian_> ping PE2BZ
[18:04] <Alex_> how far away do you want me to move the transmitter?
[18:04] <Alex_> across the room or across the house?
[18:05] <PE2BZ> pong Ian_
[18:05] <Ian_> Can you assist at all Ben?
[18:06] <PE2BZ> shure, should I read upwards first ?
[18:06] <Alex_> i could resay my situation if you'd like?
[18:06] <Alex_> I'm using a pi in the sky which is on and transmitting
[18:07] <Alex_> I have a whip antenna plugged into a HABAmp plugged into an SDR
[18:07] <Ian_> Yes please. See the imgur images. We don't seem to have a convincing signal in dl_fldigi, which is a bit of show stopper.
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[18:07] <Ian_> ??? remove habamp and antenna from rx
[18:07] <Ian_> Probably overloading things
[18:07] <PE2BZ> That would be my first. The habamp is not for local testing :-)
[18:08] <Alex_> on the program 'CubicSDR' I can see 2 nice peaks which disappear if i unplug the PITS
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[18:08] <Alex_> but yes currently the problem is there are not 2 nice peaks on dl-fldigi
[18:08] <Ian_> Post a fresh image for Ben please. Perhaps move the tx and rx closer to get a convincing signal. I'll shut up and let Ben control you.
[18:09] <PE2BZ> first disable sql by clicking
[18:09] <Alex_> at the moment I have nothing plugged into the SDR, its just alone in the USB socket. Is this what you want or do you want the whip antenna plugged into the SDR too?
[18:10] <PE2BZ> Can you set the level of audio which goes from Cubic to FL-digi ?
[18:11] <Alex_> https://imgur.com/a/XiNiK
[18:11] <Alex_> this is my current screen
[18:11] <Alex_> ok so, was that 'disable sql' thing for me?
[18:11] <PE2BZ> yes
[18:11] <Alex_> how do I disable sql?
[18:11] <Alex_> what do I click
[18:12] <PE2BZ> by using the mouse button on the green sql dot
[18:12] <Alex_> oh yes I see it at the bottom
[18:12] <Alex_> thanks
[18:12] <PE2BZ> right to afc
[18:12] <PE2BZ> And lower the audio output from cubicsdr to fldigi
[18:13] <Alex_> ok im using a VB-Audio Virtual Audio Cable
[18:13] <Alex_> so im gonna go into the sound settings andlower the levels
[18:13] <Alex_> is that about right?
[18:13] <PE2BZ> Yes
[18:14] <Alex_> https://imgur.com/a/udVPk
[18:14] <Alex_> i put both of these levels to 50, I don't know the difference between them
[18:14] <PE2BZ> First set wave in volume to zero
[18:15] <PE2BZ> and cable output to 25 I guess
[18:15] <PE2BZ> Would you happen to have teamviewer running ?
[18:16] <Alex_> ok done
[18:16] <Alex_> and yes I do
[18:16] <Alex_> it could make alot of things easier if yo uconnected
[18:16] <PE2BZ> I open a separate window
[18:17] <Alex_> do you mean you want to direct-message me instead?
[18:17] <PE2BZ> I opened a separate dialog window, if you want to pass me the teamviewer password
[18:18] <Alex_> ok one second
[18:18] <Alex_> also should I plug the raspberry pi in by cable or is batteries better for this sort of testing?
[18:18] <Alex_> im not sure if low batteries would make a difference but its worth asking
[18:19] <PE2BZ> well, the signal on the sdr looks quite ok so far, I guess batteries are ok
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[19:11] <marc__> hi guys
[19:11] <marc__> I'm new in HAB
[19:11] <Ian_> Hi
[19:18] <PE2BZ> welcome :-)
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[19:34] <SpacenearUS> New vehicle on the map: 03KF5PGW-11 - 12https://tracker.habhub.org/#!qm=All&q=KF5PGW-11
[19:34] <Ian_> How did it go Ben?
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[19:39] <PE2BZ> Still improving Alex_ aren´t we ?
[19:39] <PE2BZ> Switched to another SDR program (sdr radio V3) and fldigi in HAB mode, removed a delay in the virtual audio and now decoding.
[19:39] <SpacenearUS> New vehicle on the map: 0303068465050_chase - 12https://tracker.habhub.org/#!qm=All&q=03068465050_chase
[19:41] <SpacenearUS> New vehicle on the map: 0303018661313_chase - 12https://tracker.habhub.org/#!qm=All&q=03018661313_chase
[19:41] <Ian_> I think that teamviewer was a good step. There is so much that you really need to see. The problem is originally seen as I have a signal and it doesn't decode properly. Then the ground opens up because each use a different set of assumptions - hab amps etc!
[19:41] <SpacenearUS> New vehicle on the map: 0311tyyt666_chase - 12https://tracker.habhub.org/#!qm=All&q=11tyyt666_chase
[19:43] <Ian_> And of course the user has, in a lot of cases, no prior experience of what the signal should sound like, look like etc. It's a bigger task than imagined from ground zero.
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[20:26] <Jerry> Hi guys, hope this might be useful, it is link to a screenshot of the last data received from EPSOM by PE2BZ.... https://www.dropbox.com/s/t0dq0px6d8s657j/Screenshot%202018-01-30%2020.17.03.png?dl=0
[20:28] <PE2BZ> Hi Jerry, are you related to the EPSOM flight ?
[20:29] <Jerry> no, G8DXZ south west of Heathrow
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[22:02] <Alex_> This is just a random question.
[22:04] <Alex_> After I unplug my PITS I still get updates every few seconds on dl-fldigi, how is that possible?
[22:05] <Alex_> the dl-fldigi isnt showing a signal anymore but i still get updates with a new time and the coordinates change ever so slightly
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[22:08] <Alex_> https://imgur.com/a/79bkm
[22:08] <Alex_> this shows no signal on my sdr but still updates on dl-fldigi
[22:12] <Mike-SA6BSS> and if you close sdr-console?
[22:16] <Mike-SA6BSS> was thinkung in the line you got a recording and now looping
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[22:52] <Mike-SA6BSS|2> if anyone have an Asus router you can ad adblock as a script , all computers and phones are now adfree on the network :) http://www.ab-solution.info/
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[23:14] <pb0ahx> exit
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[23:17] <SpacenearUS> New vehicle on the map: 03M2413040 - 12https://tracker.habhub.org/#!qm=All&q=M2413040
[23:18] <SpacenearUS> New vehicle on the map: 03N1650483 - 12https://tracker.habhub.org/#!qm=All&q=N1650483
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[23:20] <SpacenearUS> New vehicle on the map: 03M4433172 - 12https://tracker.habhub.org/#!qm=All&q=M4433172
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[23:53] <SpacenearUS> New vehicle on the map: 03M1413501 - 12https://tracker.habhub.org/#!qm=All&q=M1413501
[00:00] --- Wed Jan 31 2018