highaltitude.log.20150910

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[00:45] <SpacenearUS> New vehicle on the map: 03M0DNY_chase - 12http://tracker.habhub.org/#!qm=All&q=M0DNY_chase
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[05:54] <HB9RSU> morning
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[07:00] <SpacenearUS> New position from 03SR0FLY after 0321 hours silence - 12http://tracker.habhub.org/#!qm=All&q=SR0FLY
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[08:44] <Herman-PB0AHX> !flights
[08:44] <SpacenearUS> 03Herman-PB0AHX: There are no flights currently :(
[08:52] <SpacenearUS> New vehicle on the map: 03RPF-C2 - 12http://tracker.habhub.org/#!qm=All&q=RPF-C2
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[09:19] <daveake> If you don't like flying £300 of camera on a HAB, this isn't for you :) http://www.techtimes.com/articles/82950/20150909/ready-to-spend-15000-gopro-opens-limited-access-program-for-16-camera-rig-for-google-jump-vr.htm
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[10:01] <SpacenearUS> New vehicle on the map: 03RPF-C1 - 12http://tracker.habhub.org/#!qm=All&q=RPF-C1
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[10:56] <Anasule_> @SpacenearUS When does it launch?
[10:56] <eroomde> Anasule_: that's a robot
[10:56] <eroomde> it won't answer you
[10:57] <eroomde> SpacenearUS and zeusbot and Laurenceb are the three robots that we keep in this channel
[10:57] <daveake> lol
[10:57] <Geoff-G8DHE> !flight rpf-c1
[10:57] <SpacenearUS> 03Geoff-G8DHE: Can't find a flight doc matching your query
[10:58] <Geoff-G8DHE> !flights
[10:58] <SpacenearUS> 03Geoff-G8DHE: There are no flights currently :(
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[10:58] <Anasule> Thanks eroomde :o)
[10:58] <Laurenceb> i'm a robot?
[10:58] <eroomde> we programmed him to say that ^
[10:59] <eroomde> sometimes it posts dodgy imgur links to confuse people, but it's a robot
[10:59] <chimpusmaximus> lol
[10:59] <Geoff-G8DHE> Its good isn't it!
[10:59] <Laurenceb> http://imgur.com/gallery/n7t6nki
[11:00] <HB9RSU> lol
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[11:00] <Laurenceb> well you did ask for it
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[11:07] <SpacenearUS> New vehicle on the map: 03VE2WMG-11 - 12http://tracker.habhub.org/#!qm=All&q=VE2WMG-11
[11:11] <infaddict> haha eroomde
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[12:58] <SpacenearUS> New vehicle on the map: 03F5MVO_chase - 12http://tracker.habhub.org/#!qm=All&q=F5MVO_chase
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[13:16] <SpacenearUS> New vehicle on the map: 03car_chase - 12http://tracker.habhub.org/#!qm=All&q=car_chase
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[13:40] <Anasule> any way to plot a virtual ballon flight?
[13:41] <Anasule> Like if i know baloon size and ammount of gas and weight can i see where it would go without actualy launching it?
[13:42] <Vaizki> yes, http://predict.habhub.org/
[13:43] <Vaizki> there are calculators to get you the ascent rate and burst altitude
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[13:43] <Anasule> Thanks
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[14:32] <mfa298> eroomde: do you mean tweetBot is actualy a human searching for interesting tweets to post here then (reading scroll back)
[14:33] <eroomde> i don't know what i mean
[14:35] <Laurenceb> then you are the bot
[14:35] <Laurenceb> burn the bot, burn the bot
[14:43] <x-f> we're all robots in some way ("forced labour"), doing almost the same every day - sleep, eat, work, eat, sleep, executing predefined plans/programs, following the natural and social patterns, reacting to external inputs
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[15:00] <day> Laurenceb: self immolation is the way
[15:02] <eroomde> dd if=/dev/urandom of=/my/brain
[15:02] <eroomde> equivalently, you can watch daytime tv
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[15:07] <day> that sounds more like dev/zero
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[15:12] <Laurenceb> /dev/random question: how can i reset usb on linux?
[15:13] <Laurenceb> all my usb port have died :-/
[15:13] <zyp> sudo reboot
[15:13] <Laurenceb> lol
[15:13] <day> he really makes good sentences
[15:13] <Laurenceb> without rebooting
[15:14] <day> restart
[15:14] <eroomde> something with udevadm?
[15:14] <zyp> I don't think udev would do anything, it's a layer below that
[15:15] <zyp> rmmod/modprobe might work
[15:15] <zyp> but rebooting is probably faster anyway
[15:15] <mfa298> I think there's some ioctl type thing you can send that resets the bus but I'm not sure what it is
[15:16] <Laurenceb> im not sure i want to reset the bus
[15:16] <eroomde> sudo modprobe -r usbhid
[15:16] <eroomde> wait a few seconds
[15:16] <eroomde> sudo modprobe usbhid
[15:16] <Laurenceb> nothing
[15:17] <zyp> assuming you're not using a usb keyboard to write the commands :)
[15:17] <Laurenceb> heh good point
[15:17] <eroomde> i'm out
[15:17] <Laurenceb> I dunno
[15:17] <Laurenceb> all the ports I can access are head
[15:17] <Laurenceb> *dead
[15:17] <Laurenceb> time to desk dive
[15:17] <zyp> if you rebooted when I told you to, you'd be done by now
[15:17] <Laurenceb> too lazy to save all my shit
[15:18] <eroomde> save all your shit
[15:18] <eroomde> make your workspace easy to restart
[15:18] <Laurenceb> and restart all the weird services
[15:18] <eroomde> it's good practice
[15:18] <Laurenceb> for the shit thats hosted off my desktop as we have no servers at work
[15:18] <zyp> doesn't linux preserve desktop session state nowadays?
[15:18] <Laurenceb> thats not working reliably on my desktop :-/
[15:19] <Laurenceb> stupid gopros :-/
[15:19] <Laurenceb> gopro completely killed the usb
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[15:59] <HB9RSU> are there 2m/70cm handhelds with SSB out there (or even with 23cm)?
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[16:17] <eroomde> HB9RSU: i think kenwood did one
[16:17] <eroomde> ths7 or something like that
[16:21] Nick change: fl_0 -> fl_0|afk
[16:22] <HB9RSU> tnx. Found it... its probably the TH-F7E. It's cute :-)
[16:24] <mfa298> TH-F7E isn't bad as a handheld (I've got one), ssb is rx only but seems to work.
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[17:14] <charlie> hi :)
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[17:24] <arjunnaha> I'm testing my pits board and sdr# can see it but dl-fldigi spits out meaningless letters, it can't find my payload under testing either
[17:28] <arjunnaha> Actually, found the PISKY template, but it is still random crap coming out
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[17:34] Nick change: Steffann -> Steffanx
[17:37] <mfa298> arjunnaha: that may mean some of the rtty settings are wrong.
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[17:37] <mfa298> screenshots of sdr# and dl-fldigi are likely to help
[17:37] <arjunnaha> ok, coming up
[17:39] <arjunnaha> imgur.com/3QtHDSo
[17:39] <Upu> you're tuned into the DC
[17:40] <Upu> thats not the signal
[17:40] <Upu> what is the frequency set too in the config file ?
[17:40] <arjunnaha> One sec, let me check
[17:40] <Upu> and do yourself a favour switch decimation on you can see 10Mhz of spectrum there
[17:41] <Upu> click the cog and set decimation to whatever it will go up too
[17:41] <arjunnaha> It's set to 434.250
[17:42] <Upu> ok so you can see 10Mhz
[17:42] <Upu> 10000000
[17:42] <Upu> and you're looking for a signal which is 600 wide :)
[17:42] <Upu> so click the cog
[17:42] <Upu> set decimation to the max
[17:42] <Upu> or zoom in
[17:42] <arjunnaha> I set the decimation to 64
[17:42] <Upu> but decimation is good
[17:43] <Upu> ok so now you should be seeing much less spectrum
[17:43] <arjunnaha> Yes, a lot less
[17:43] <Upu> so move it left and right so you get say trhe start around 434.050
[17:43] <Upu> avoid putting 434.250 dead center
[17:44] <Upu> got that ?
[17:44] <Upu> lets have another screen shot to see where we are at
[17:44] <mfa298> also set sdr# to USB not WFM
[17:45] <Upu> was coming to that :)
[17:45] <arjunnaha> coming up, one sec
[17:45] <arjunnaha> imgur.com/jQGwg8j
[17:45] <Upu> 404
[17:46] <prog> I should add a buttom with a balloon icon
[17:46] <prog> auto configuration
[17:46] <Upu> Heh
[17:46] <Upu> well going through it step by step explains stuff to people
[17:46] <arjunnaha> imgur.com/jQGwg8J
[17:46] <arjunnaha> There we go
[17:47] <Upu> ok so as mfa298 said you have it set to wide fm
[17:47] <Upu> it needs to be USB
[17:47] <Upu> top left
[17:47] <arjunnaha> Sorry, just got airspy today, first time tracking so you have to bear with me
[17:47] <arjunnaha> got it
[17:47] <arjunnaha> set it to usb
[17:47] <Upu> ok now drag the spectrum along so you get to 434.250 ish
[17:47] <prog> you probably know more about tracking than I do
[17:48] <arjunnaha> It's now at 434.248
[17:48] <Upu> see a signal ?
[17:49] <arjunnaha> Yes, it's dark red, but still nothing coming through on dl-fldigi
[17:49] <Upu> should look like batmans head :)
[17:49] <Upu> screen shot pls
[17:49] <Upu> probably the tuning bar isn't over the signal
[17:49] <arjunnaha> imgur.com/E0jY99c
[17:50] <Upu> ok zoom in a little
[17:50] <HB9RSU> Batman ;-) thats exactly like it looks like :-)
[17:50] <Upu> and increase the resolution on the waterfall
[17:51] <Upu> (FFT Display -> Resolution)
[17:51] <Upu> pick something that doesn't kill your machine :)
[17:51] <arjunnaha> ;-) found it
[17:51] <Upu> ok so plonk the cursor over the signal so its in the middle
[17:51] <arjunnaha> it is on 65536 and it is smack bang on the signal
[17:52] <Upu> lets see
[17:52] <arjunnaha> imgur.com/5MQ1Vu2
[17:52] <Upu> left a bit
[17:52] <Upu> and tinker with the contrast
[17:53] <Upu> in that deep red bit are 2 lines
[17:53] <Upu> you can just about see them
[17:53] <arjunnaha> yes
[17:53] <arjunnaha> can see them faintly
[17:54] <Upu> do you have an antenna on both the Airspy and the PITS ?
[17:54] <HB9RSU> oversaturated?
[17:54] <arjunnaha> yes and no. The airspy has a whip and the pits antenna cable that came with it is wrapped around the antenna, haven't got round to making it yet
[17:54] <mfa298> you want the shaded bit above the waterfall to cover the two lines of signal (so the red line atthe top is to the left of where the signal is in the waterfall)
[17:55] <Upu> just out of interest take the antenna off the airspy
[17:55] <arjunnaha> ok, one sec
[17:55] <Upu> I need to go cook but if you're still struggling later on I can do a remote session with you and get it sorted
[17:55] <Upu> but its there
[17:56] <Upu> just need to fiddle the contrast
[17:56] <Upu> afk
[17:56] <arjunnaha> Thanks
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[17:57] <HB9RSU> how does the signal look like now without antenna
[17:57] <SpacenearUS> New vehicle on the map: 03KC3FBT-11 - 12http://tracker.habhub.org/#!qm=All&q=KC3FBT-11
[17:58] <arjunnaha> white with blue
[17:59] <arjunnaha> blue where the signal was
[17:59] <HB9RSU> pic pls
[17:59] <arjunnaha> one sec
[18:00] <arjunnaha> you can see the difference between the two - imgur.com/UqtuNKv
[18:00] <arjunnaha> the red is with the antenna and the blue is without
[18:02] <Upu> ok pull the contrast back a little, zoom in a little and increase the resolution a little
[18:03] <HB9RSU> still horrible ... I had a PITS and a SDR (Funcube) too and it looks like this https://www.dropbox.com/s/fupzzcmhrr6fiqf/working.jpg?dl=0
[18:03] <Upu> we'll deal with the wtf is wrong with dl-fldigi shortly
[18:03] <arjunnaha> with or without the antenna upu?
[18:03] <Upu> doesn't matter really try without
[18:03] <Upu> its so close its very strong
[18:03] <Upu> but you can drag the contrast back
[18:04] <Upu> you are aiming for something that looks like what HB9RSU posted
[18:04] <Upu> he has a strong carrier just up from the pits transmission it seems
[18:04] <arjunnaha> imgur.com/cY4lijG3
[18:04] <arjunnaha> whoops one sec
[18:04] <SM0ULC> HB9RSU: play a bit wih higher resolution in sdsharp, ust to see the signal better
[18:05] <arjunnaha> imgur.com/TMCYgbw
[18:05] <Upu> hmm
[18:05] <Upu> put antenna back on
[18:06] <arjunnaha> imgur.com/ICm35hn
[18:06] <Upu> contrast back
[18:07] <arjunnaha> imgur.com/HasJkiN
[18:07] Action: HB9RSU is pretty sure that you are not on the right frequency. When I configured a certain frequency in PITS config then the receiving freq was more than 200 k off. Don't know why. Maybe because I had an early PITS buts ran the latest software
[18:08] <Upu> I'm thinking that
[18:08] <Upu> zoom out
[18:08] <Upu> all the weay
[18:08] <Upu> way
[18:08] <Upu> drop the decimation down a notch
[18:08] <Geoff-G8DHE-M> What gain is set on The airspy settings ???
[18:09] <Geoff-G8DHE-M> LNA 0 was seen recently
[18:09] <arjunnaha> The frequency was taken from the conf file but - imgur.com/XtcFjQu
[18:10] <arjunnaha> Geoff-G8DHE-M It's on auto
[18:10] <arjunnaha> I would say from auto it looks about 3 or so
[18:10] <Geoff-G8DHE-Tab> And the other settings?
[18:10] <arjunnaha> From the pits website - if gain (5) mixer gain (10)
[18:11] <Geoff-G8DHE-Tab> OK that isn't it then!
[18:11] <arjunnaha> ok thanks ;-)
[18:11] <HB9RSU> you are sure it's RTTYing? It looks like the plain carrier
[18:12] <HB9RSU> Software installed and running?
[18:12] <arjunnaha> At the bottom it says RTTY 300
[18:12] <arjunnaha> Which software?
[18:12] <HB9RSU> bottom of waht?
[18:12] <arjunnaha> bottom of dl-fldigi
[18:12] <HB9RSU> Software on the Raspberry
[18:13] <arjunnaha> Yes, the pits board is running and has the ok led flashing
[18:14] <arjunnaha> I complied everything yesterday, so should be up-to-date
[18:14] <Geoff-G8DHE-Tab> If you turn the RPI off does that peak in SDR # go
[18:14] <arjunnaha> lets see, one sec
[18:14] <HB9RSU> and it fills data to the file /home/pi/pits/tracker/telemetry.txt ?
[18:15] <arjunnaha> Yes, right down
[18:15] <arjunnaha> HB9RSU, let me check
[18:15] <Geoff-G8DHE-Tab> Not convinced that isn't the DC signal
[18:15] <HB9RSU> yep
[18:16] <arjunnaha> as soon as the pits board comes on the peak goes straight up again
[18:16] <HB9RSU> but maybe only the carrier... not modulated
[18:16] <daveake> Login to the pi, do "sudo killall tracker" to stop the RTTY, then zoom out in the SDR software. Back on the Pi, type "gpio write 0 0", which will turn off the radio. You'll then see the carrier disappear. Type "gpio write 0 1" to turn it back on again. The tune into that signal so it's being sent to dl-fldigi. At that point restart the tracker with "cd pits/tracker" and then "sudo ./tracker"
[18:16] <Geoff-G8DHE-Tab> Set the centre freq to about 434.240
[18:17] <daveake> At least then we'll know you're tuned in right.
[18:17] <arjunnaha> Ok, 1 min
[18:17] Nick change: fl_0|afk -> fl_0
[18:18] <daveake> Also, till it's working, I suggest you set 50 baud (in pisky.txt and dl-fldigi) as it's a lot easier to see that signal
[18:18] <arjunnaha> done gpio write 0 0 and peak has gone in dl-fldigi
[18:19] <daveake> make sure you're zoomed out in SDR
[18:19] <daveake> because there are likely several peaks and you want the loudest
[18:19] <arjunnaha> I'm zoomed out to the max
[18:19] <arjunnaha> And can see dark red as the loudest
[18:20] <arjunnaha> Just restarting now...
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[18:20] <daveake> I didn't say restart
[18:20] <arjunnaha> restarting the tracker
[18:20] <daveake> ok
[18:20] <arjunnaha> I can see the rtty signals being sent in the terminal window, but nothing in dl-fldigi
[18:21] <daveake> and do you get an "RTTY: ...." message every couple if seconds or so ?
[18:21] <arjunnaha> RTTY: $$*********,43,18:21:43,51.44905,-0.92812,00081,0,0,7,27.4,0.0,0*3255
[18:22] <arjunnaha> i've set payload name btw
[18:22] <daveake> It's showing "*****" ??
[18:22] <arjunnaha> RTTY: $$FORESTHAB,43,18:21:43,51.44905,-0.92812,00081,0,0,7,27.4,0.0,0*3255
[18:22] <daveake> ok and how often do you get those sentences ?
[18:23] <arjunnaha> Every two seconds or so
[18:23] <daveake> cool now set 50 baud please
[18:23] <adamgreig> does 'tracker' have to run as root?
[18:23] <arjunnaha> can I do that from nano or does it have to be on a pc
[18:23] <daveake> nano
[18:23] <daveake> and yes as root
[18:24] <adamgreig> any particular reason why? hardware access?
[18:24] <daveake> yes
[18:24] <adamgreig> how annoying
[18:24] <adamgreig> guess it doesn't really matter
[18:24] <daveake> yes
[18:24] <arjunnaha> Just easier instead of powering off pi, taking out sd card, editing and restarting, maybe
[18:24] <daveake> yes much easier
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[18:26] <arjunnaha> I've set the baud rate and restarted the tracker, but in the initial startup it shows 300 instead of 50
[18:26] <daveake> Check the file - you didn't save it
[18:27] <daveake> nano sud /boot/pisky.txt
[18:27] <daveake> sudo ^
[18:27] <daveake> er
[18:27] <HB9RSU> sudo nano
[18:27] <daveake> sudo nano /boot/pisky.txt
[18:27] <daveake> long day :/
[18:27] <arjunnaha> I've definitely saved it, it shows in nano
[18:28] <daveake> in /boot/pisky.txt ?
[18:28] <arjunnaha> yes, in pits/boot/pisky.txt
[18:28] <daveake> erm no
[18:28] <HB9RSU> :-)
[18:28] <daveake> Try what I said
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[18:29] <arjunnaha> I think so...http://imgur.com/P3t6Agr
[18:29] <daveake> *** TYPE WHAT I SAID ***
[18:30] <HB9RSU> ahrrg, I tried to detach the screen session with ctrl-a-d , but was in the dropbox window. All deleted!
[18:30] <arjunnaha> ok
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[18:31] <arjunnaha> Sorry dave, it's 50 now
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[18:32] <arjunnaha> It's about 15 secs between rtty(ies)
[18:32] <daveake> cool
[18:32] <daveake> now take a look in the SDR program
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[18:32] <daveake> you should see a batman head with the ears bobbling up and down
[18:33] <arjunnaha> imgur.com/p8t4NX3
[18:33] <daveake> no that's shit zoom out
[18:34] <daveake> you have an aerial on the airspy and PITS ?
[18:35] <arjunnaha> I have a whip on the airspy but not the PITS board the wire it came with is wrapped around the antenna, haven't got round to making yet
[18:35] <arjunnaha> imgur.com/ak8zoPp
[18:35] <daveake> The wire it came with is coax, so the centre is shielded, so that's not going to do much
[18:36] <daveake> Just pole a piece of single-core wire into the SMA socket
[18:36] <daveake> poke ^
[18:36] <arjunnaha> ok, one sec
[18:37] <daveake> and when I say zoom out, I mean all the way out
[18:38] <arjunnaha> i'm finding some wire and imgur.com/TOBDI7z
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[18:39] <daveake> ok nothing else there then
[18:40] <arjunnaha> can't find wire but stuck a hex tool in there
[18:40] <arjunnaha> all metal
[18:41] <daveake> erm ... that's probably not right
[18:41] <daveake> The SMA socket has a teeny hollow metal bit in the middle
[18:41] <arjunnaha> ok, let me go into the garage
[18:41] <arjunnaha> one sec
[18:41] <daveake> We need a piece of wire or paper clip or something in there
[18:41] <Geoff-G8DHE-Tab> Wider frew range, decrease decimation?
[18:42] <arjunnaha> safety clip
[18:42] <arjunnaha> ?
[18:43] <arjunnaha> Thats intresting
[18:43] <arjunnaha> let me get a screenshot
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[18:44] <arjunnaha> imgur.com/Dbo68OV
[18:45] <Geoff-G8DHE-Tab> Ah 434.2 I think!
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[18:46] <HB9RSU> thats what I said... it's quite off to what you configure (in my PITS about 200k)
[18:46] <arjunnaha> nothing coming through on dl-fldigi yet
[18:47] <daveake> In dl-fldigi you need to set 50 baud, and you need to set the audio shift to match the distance between the 2 peaks
[18:48] <Geoff-G8DHE-Tab> Put the lines over the two peaks down at 434.2
[18:50] <arjunnaha> Now my sdr software has crashed
[18:50] <arjunnaha> two secs
[18:51] <arjunnaha> i've got to cook now, give me 20 min
[18:51] <arjunnaha> afk
[18:52] <Geoff-G8DHE-Tab> Watching GBB myself 😁
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[19:08] <arjunnaha> I'm back, but still not rtty coming from dl-fldigi
[19:09] <arjunnaha> Could you tell me how to set the audio shift daveake
[19:10] <Upu> would you like to do a remote session arjunnaha ?
[19:10] <arjunnaha> That might be a good idea, open a separate chat window to share details
[19:11] <Upu> ok 2 mins let me put the console on this machine here
[19:11] <arjunnaha> thanks
[19:12] <Upu> www.nevis.co.uk top right says Nevis remote, click that, stick your name in click connect to technician
[19:12] <Upu> press run a few times
[19:12] <Upu> accept any UAC
[19:12] <Upu> ok firewall etc etc :)
[19:13] <arjunnaha> ok , please accept the request ;-0
[19:13] <Upu> UAC prompt
[19:13] <arjunnaha> Done
[19:14] <Upu> ok so thats what we are after
[19:17] <Upu> thats very wierd
[19:17] <arjunnaha> What's happening?
[19:17] <Upu> ok so the vbcable
[19:18] <Upu> you need to play the audio from sdrsharp via a virtual audio cable into dl-fldigi
[19:18] <Upu> so
[19:18] <Upu> that bit
[19:18] <arjunnaha> I downloaded that virtual cable thing for that
[19:18] <Upu> yup
[19:18] <Upu> but
[19:18] <Upu> even with nothing playing
[19:18] <Upu> you're still getting something in dl-fldigi
[19:19] <arjunnaha> So I got a dodgy one
[19:19] <arjunnaha> any other free alternatives?
[19:19] <arjunnaha> Ah
[19:19] <arjunnaha> that is why
[19:20] <Upu> thinking
[19:21] <Upu> just check your sound is working before I log out :)
[19:22] <arjunnaha> thx ;-)
[19:23] <Upu> ok
[19:24] <Upu> go uninstall that vbaudio cable thingy
[19:24] <Upu> and 1 sec
[19:24] <arjunnaha> Removed
[19:24] <Upu> ok on the desktop
[19:24] <Upu> is Virtual Audio cable
[19:24] <Upu> in a zip
[19:25] <Upu> extract that and install it
[19:25] <Upu> you have very good internet
[19:25] <arjunnaha> Ok, done that
[19:25] <Upu> ok let me drive a min
[19:29] <arjunnaha> dave told me to set the baud rate to 50 for dev
[19:29] <arjunnaha> upu
[19:29] <Upu> signal just isn't correct
[19:30] <Upu> take the antenna off pls
[19:30] <arjunnaha> ok one sec
[19:30] <arjunnaha> done
[19:30] <Upu> its just not a clear signal
[19:31] <Upu> can you move the pits away from the radio ?
[19:31] <Upu> too far :)
[19:31] <Upu> or you turned it off
[19:31] <arjunnaha> moving it to another room
[19:31] <arjunnaha> just unplugged it for a sec
[19:32] <Upu> ok do that then put the antenna back on
[19:32] <Upu> ok
[19:33] <arjunnaha> done that
[19:34] <Upu> show me a picture of the pits please as it is right now
[19:35] <arjunnaha> one sec
[19:36] <arjunnaha> imgur.com/Yt2llf4
[19:36] <arjunnaha> oh wait dead
[19:37] <arjunnaha> imgur.com/Yt2IIf4
[19:37] <Upu> whats that sticking out of the radio ?
[19:37] <Upu> oh
[19:37] <Upu> do me a favour
[19:37] <Upu> run it off batteries pls
[19:38] <arjunnaha> a safety pin
[19:38] <Upu> heh
[19:38] <Upu> ok well may work
[19:38] <arjunnaha> Couldn't find wire and haven't built an antenna yet
[19:38] <Upu> doesn't really need one up close
[19:38] <arjunnaha> ok, let me get batteries
[19:38] <Upu> run it from a decent set of batteries
[19:38] <Upu> rechargables are fine
[19:39] <Upu> just make sure they are a decent battery
[19:40] <arjunnaha> ok
[19:41] <arjunnaha> batteries box has done awol, finding devices that take aa
[19:41] <Upu> :)
[19:42] <arjunnaha> why does everything have to be aaa
[19:42] <Upu> be engineer :) Wrap them in gaffer and make them AA sized :)
[19:43] <Lunar_Lander> yes!
[19:44] <arjunnaha> 2 duracell aa down 2 to go
[19:44] <arjunnaha> thank you sky remote
[19:47] <arjunnaha> Hasn't got a gps lock yet
[19:47] <Upu> no thats fine
[19:47] <Upu> pull that safety pin out pls
[19:48] <Upu> hmm
[19:48] <Upu> scratching my head here
[19:48] <arjunnaha> ok 😂
[19:48] <arjunnaha> done
[19:48] <Upu> stick it back in :)
[19:50] <arjunnaha> And we have a green led :-)
[19:51] <Upu> dum dee dum
[19:51] <Upu> it should look different to that in dl-fldigi
[19:52] <arjunnaha> Why does it have to be me?!
[19:53] <arjunnaha> You have to change the baud rate as well to 50
[19:54] <Upu> yeah not much difference
[19:54] <arjunnaha> ok
[19:54] <Upu> as the signal in dl-fldigi is crap
[19:54] <Upu> 1 sec
[19:54] <arjunnaha> looks like the language of the sdaklfjadsklfj aklfj dsfjal skdfasdfasd tribe
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[19:55] <arjunnaha> and a local dialect of !@£$%^&*^%$£$%^YGVDRTYHFTYUDIhsagdkhdkjdgfajskdlfsadf]p[]2[4'2;3ri392()*&^
[19:55] <Upu> anyone else want to take a look ? https://join.me/462-437-611
[19:56] <craag> that's *really* noisy on the rf input
[19:56] <adamgreig> screenshot the bad signal in fldigi and (radio software)?
[19:56] <adamgreig> what sdr is it?
[19:56] <Lunar_Lander> hi craag :)
[19:56] <craag> airspy
[19:56] <Upu> Airspy
[19:56] <adamgreig> 2.5MHz or 10MHz sample rate?
[19:56] <Upu> 10Mhz
[19:57] <adamgreig> AGC or manual gains?
[19:57] <Upu> agc at the moment
[19:57] <adamgreig> try setting all the gains to 0/
[19:57] <adamgreig> ?*
[19:57] <craag> That's gotta be a tx issue, or something very bad in the airspy
[19:57] <adamgreig> maybe then a tiny bit of LNA
[19:57] <Upu> yeah its not doing anything to the signal in dl-fldigi
[19:57] <adamgreig> oh gross
[19:58] <adamgreig> yea I See
[19:58] <arjunnaha> I've got another airspy, let me plug that in
[19:58] <Upu> why would have 2 ? :)
[19:58] <Upu> lol
[19:58] <adamgreig> uh
[19:58] <arjunnaha> one for chase and one for hq 😂
[19:58] <adamgreig> arispy says
[19:58] <adamgreig> actual sample rate 213Ksps
[19:58] <adamgreig> ?
[19:58] <adamgreig> oh, it's got the decimation
[19:58] <adamgreig> ignore
[19:58] <Upu> yes decimation
[19:58] <arjunnaha> changing it now
[19:58] <Upu> ok I'll close that down for the moment
[19:59] <Upu> remote support inception here :)
[19:59] <arjunnaha> changed
[19:59] <adamgreig> fldigi looks like it's just getting white noise but clearly is actually coming from the sdr software
[19:59] <arjunnaha> I knew I should have got the funcube
[19:59] <adamgreig> mm looks like the airspy's not the problem then
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[20:00] <Geoff-G8DHE-M> Try looking down on 434.2
[20:00] <adamgreig> airspy should be totally fine for this
[20:00] <adamgreig> hmm yea good thought Geoff-G8DHE-M
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[20:00] <adamgreig> is the computer running this at least a little bit chunky? you could try turning off decimation and just seeing a nice wide bit of spectrum
[20:00] <adamgreig> in case you're tuned to an image
[20:00] <Geoff-G8DHE-M> There was a clear signal there earlier
[20:01] <Upu> thats the only signal on there
[20:01] <adamgreig> welp
[20:01] <adamgreig> yea
[20:01] <Upu> but its just mush
[20:01] <adamgreig> it looks great in sdr#
[20:01] <adamgreig> can you have sdr# output to speakers?
[20:01] <Upu> how loud is you volume arjunnaha ?
[20:01] <adamgreig> well "great" is a strong word
[20:01] <adamgreig> but it looks reasonable in sdr#
[20:02] <arjunnaha> not that loud
[20:02] <Upu> can you hear that ?
[20:02] <arjunnaha> no
[20:02] <arjunnaha> yes
[20:02] <Geoff-G8DHE-M> Thats too low the diamond has gone black
[20:02] <Upu> playing to speakers Geoff
[20:02] <adamgreig> does it sound like noise/static or just actual tones?
[20:02] <arjunnaha> static
[20:02] <Geoff-G8DHE-M> Ah
[20:03] <arjunnaha> though it sounds like morse, on and of
[20:03] <arjunnaha> f
[20:03] <Upu> where does it put the recordings ?
[20:03] <Geoff-G8DHE-M> Check the Noise blanker and digital in SDR#
[20:03] <Upu> yeah all off
[20:03] <Geoff-G8DHE-M> OK
[20:03] <arjunnaha> No idea
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[20:04] <Upu> ping prog
[20:04] <Upu> where does SDRSharp stick its recordings?
[20:05] <Upu> might be down my docs
[20:05] <topshed> Hi
[20:05] <Upu> hi topshed
[20:06] <Upu> try wav
[20:06] <topshed> daveake suggested this would be a good place to ask about the flight predictor at habhub...
[20:06] <Upu> he was correctr
[20:06] <Upu> correct
[20:06] <topshed> Is it possible to submit JSON requests without going through the UI?
[20:06] <adamgreig> great question
[20:06] <adamgreig> yes
[20:06] <adamgreig> but with a caveat
[20:07] <adamgreig> the caveat is that only the new version supports that, and it's not officially released yet
[20:07] <topshed> I'm trying to model a bunch of possible launch sites and doing each one for a range of dates is quite time-consuming
[20:07] <adamgreig> here's the API http://tawhiri.readthedocs.org/en/latest/api.html
[20:07] <arjunnaha> this should find it
[20:07] <arjunnaha> one sec
[20:07] <topshed> cool. great, thanks
[20:07] <arjunnaha> found it
[20:07] <adamgreig> be aware that it is not yet stable but it won't change for a while yet and probably not in any significantw ays
[20:08] <adamgreig> only thing that's not really settled is supporting multiple predictions in the same request
[20:08] <topshed> Thanks lloks perfect. I'll give it a try.
[20:08] <topshed> Thanks again
[20:08] <adamgreig> np
[20:08] <adamgreig> if you could
[20:08] <adamgreig> please report to #habhub with any comments you might have about using it and how it went
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[20:08] <topshed> sure, will do.
[20:08] <adamgreig> any feedback would be great :)
[20:09] <arjunnaha> this static is doing my head in
[20:09] <MarkIreland> My aim would be to set up a notification system based on the predictor - for an 'early warning' alert when predicted landing is within a certain radius.
[20:09] <MarkIreland> To cut down on recovery driving
[20:09] <adamgreig> that would be fun
[20:09] <adamgreig> that and other applications are why we were keen to get a nice modern api up that's easy to code against
[20:09] <adamgreig> among other changes
[20:09] <adamgreig> but the web ui for the new thing is still languishing a bit
[20:09] <Upu> sounds awful
[20:09] <MarkIreland> Sounds good
[20:09] <adamgreig> one developer got a job and the other had to work on their phd/rocket :p
[20:10] <adamgreig> still hopefully before the year is out we will have a working version up
[20:10] <Upu> https://www.dropbox.com/s/ateuxm84cgdxj0r/SDRSharp_20150910_200305Z_434250kHz_AF.wav?dl=0
[20:10] <Laurenceb__> anyone here encountered the "No SD" GoPro error?
[20:10] <Lunar_Lander> nice news adam
[20:10] <adamgreig> Laurenceb__: yea a few times
[20:10] <adamgreig> I usually solve it by putting the SD card in
[20:10] <Upu> ok arjunnaha
[20:10] <Laurenceb__> how do you fix it?
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[20:10] <Laurenceb__> oh
[20:10] <Upu> there is something screwy with the sound
[20:10] <Laurenceb__> hmf
[20:10] <adamgreig> oh weird
[20:10] <adamgreig> that sounds upsetting
[20:10] <Laurenceb__> GoPro literally is the camera from hell
[20:11] <Upu> possibly the sound card in your machine
[20:11] <Upu> not sure
[20:11] <Upu> but it certainly doesn't sound correct
[20:11] <arjunnaha> it's built into the motherboard
[20:11] <adamgreig> something is screwing up filtering somewhere
[20:11] <Upu> yeah many are
[20:11] <adamgreig> could you try decimation to 1/off and default USB filters on SDR#?
[20:11] <Upu> that record was with it off
[20:11] <adamgreig> the soundcard in the machine won't affect the WAV that SDR# writes out
[20:11] <adamgreig> ?_?
[20:11] <adamgreig> wonder if it's dropping samples
[20:12] <arjunnaha> maybe the filter in SDR#?
[20:12] <arjunnaha> yes yes yes
[20:12] <arjunnaha> beeps and beeps
[20:12] <adamgreig> it sounds like it's been passed through a narrowband filter
[20:12] <adamgreig> oh lol
[20:12] <adamgreig> what was it?
[20:12] <arjunnaha> device sample rate
[20:12] <adamgreig> curious
[20:12] <adamgreig> 2.5M worked?
[20:12] <arjunnaha> yes
[20:12] <adamgreig> guess it was dropping samples
[20:13] <adamgreig> what PC is it running on?
[20:13] <adamgreig> spec-wise
[20:13] <Upu> ah bingo
[20:13] <Upu> ]i3
[20:13] <arjunnaha> i3, gigabyte, windows 10
[20:13] <adamgreig> hum
[20:13] <adamgreig> yea maybe it just can't handle it
[20:13] <arjunnaha> mmmm
[20:13] <adamgreig> dunno if sdr# has an overflow warning
[20:14] <adamgreig> anyway if it works on 2.5 that's fine
[20:14] <arjunnaha> Still full of gibberish
[20:14] <Upu> you can test it
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[20:15] <arjunnaha> how?
[20:16] <Upu> jsut finding the file
[20:16] <arjunnaha> can you remotely browse my files?
[20:16] <arjunnaha> creepy
[20:17] <Upu> yeah if I wanted but I'm not doing I'm search on my PC atm
[20:17] <arjunnaha> oh ok 😂
[20:17] <Upu> got iot
[20:19] <Upu> yeah you can't do 10Mbps
[20:19] <Upu> 8.88 is the max
[20:19] <arjunnaha> Lovely
[20:20] <Upu> possibly a limitation of the USB bus
[20:20] <arjunnaha> It's in a usb3 port right now, let me change to back of pc
[20:20] <Upu> Average speed 8.8156 MSPS IQ
[20:20] <arjunnaha> one sec
[20:20] <Upu> ok try that
[20:20] <MarkIreland> adamgreig: what is the predictor written in?
[20:20] <Upu> I'm going to make a cuppa
[20:20] <Upu> back in 4
[20:21] <arjunnaha> fair
[20:21] <arjunnaha> It was the usb port
[20:21] <adamgreig> MarkIreland: python
[20:21] <arjunnaha> it can do 10 now in a usb2, makes no sense
[20:21] <adamgreig> well the new one is python
[20:21] <adamgreig> arjunnaha: weird, the usb3 one was slow?
[20:21] <adamgreig> some usb3 controllers maybe not great at usb2
[20:22] <adamgreig> odd though
[20:22] <adamgreig> perhaps bus contention
[20:22] <adamgreig> anything else on the usb3?
[20:22] <arjunnaha> yes, a wireless adaptor
[20:22] <arjunnaha> I'll wait til Upu comes back
[20:22] <adamgreig> ah
[20:22] <adamgreig> yea that might be causing the problem
[20:23] <adamgreig> especially while streaming your desktop over the internet ;)
[20:23] <arjunnaha> Lol
[20:23] <adamgreig> you may as well use 2.5 to be honest
[20:23] <arjunnaha> 5 min shower
[20:23] <arjunnaha> afk
[20:23] <adamgreig> you don't need much bandwidth
[20:23] <SpacenearUS> New vehicle on the map: 03p_chase - 12http://tracker.habhub.org/#!qm=All&q=p_chase
[20:24] <SpacenearUS> New vehicle on the map: 03test_chase - 12http://tracker.habhub.org/#!qm=All&q=test_chase
[20:24] <Upu> yeah 10Mbps now
[20:26] <Upu> signal looks perfect now
[20:26] <arjunnaha> I'm back
[20:26] <Upu> just not decoding
[20:26] <arjunnaha> quickest shower ever
[20:26] <Upu> lol
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[20:26] <Upu> what did you set the baud rate too ?
[20:26] <arjunnaha> on the pi it is set to 50
[20:27] <Upu> its in the sdr sharp download folder
[20:28] <Upu> you got 2 ?
[20:28] <arjunnaha> theres two one sec
[20:28] <arjunnaha> don't ask
[20:28] <Upu> that sounds perfect
[20:29] <arjunnaha> so its dl-fldigi
[20:29] <Upu> https://www.dropbox.com/s/g0v0t712jev7hqr/SDRSharp_20150910_202656Z_434250kHz_AF.wav?dl=0
[20:31] <arjunnaha> Someone else play the recording back through dl-fldigi and see what you get
[20:31] <craag> decodes here
[20:31] <SpacenearUS> New position from 03RPF-N2 after 039 days silence - 12http://tracker.habhub.org/#!qm=All&q=RPF-N2
[20:31] <craag> 11.44905,-0.92808,00063,0,0,12,23.1,4.1,175*88F5
[20:31] <craag> $$FORESTHAB,171,20:27:11
[20:31] <arjunnaha> Thats it
[20:31] <SpacenearUS> New position from 03RPF-C2 after 0311 hours silence - 12http://tracker.habhub.org/#!qm=All&q=RPF-C2
[20:32] <arjunnaha> can you save the config setting somehow?
[20:32] <craag> 50bd / 710Hz
[20:32] <craag> 7n2
[20:32] <craag> No Rv
[20:32] <craag> that's it
[20:32] <SpacenearUS> New position from 03AIRCOR-51 after 032 days silence - 12http://tracker.habhub.org/#!qm=All&q=AIRCOR-51
[20:32] <SpacenearUS> New position from 03RPF-C1 after 039 hours silence - 12http://tracker.habhub.org/#!qm=All&q=RPF-C1
[20:32] <Upu> 7n2 ?
[20:33] <craag> yep
[20:34] <Upu> PITS is 8N2
[20:34] <Upu> normally
[20:34] <daveake> always
[20:34] <Upu> you can't change that can you ?
[20:34] <daveake> er wait
[20:34] <daveake> It does 7N2 at 50 baud
[20:34] <Upu> hah
[20:34] <daveake> No not configurable - automatic from the baud rate
[20:35] <Upu> ok so thats the issue
[20:35] <arjunnaha> let me change it back to 300
[20:35] <Upu> ok arjunnaha
[20:35] <Upu> hang on
[20:35] <daveake> yes
[20:35] <Upu> I've brokens something
[20:35] <daveake> the 50 baud was just till we saw some normal rtty in the waterfall
[20:35] <Upu> did you unplug the airspy ?
[20:36] <Upu> oh wait sorry
[20:36] <arjunnaha> no
[20:36] <arjunnaha> I've changed it to 300
[20:36] <Upu> camera in ?
[20:37] <arjunnaha> pi camera?
[20:37] <arjunnaha> no
[20:37] <arjunnaha> I've disabled it from the boot partition conf file
[20:37] <arjunnaha> YES
[20:37] Last message repeated 2 time(s).
[20:37] <arjunnaha> SUCCESS!!!!!
[20:37] <Upu> ta da
[20:37] <Upu> (swap I&Q as well)
[20:37] <Upu> that took a while
[20:37] <craag> :)
[20:38] <arjunnaha> 4 HOURS!
[20:38] <arjunnaha> So Upu...
[20:38] <Upu> I have disconnected
[20:38] <Upu> so
[20:38] <arjunnaha> If I were to install programs on a laptop, what would I have to change to make it work
[20:38] <arjunnaha> From default settings
[20:38] <Upu> I think the USB bus the airspy was on saturated
[20:38] <Upu> so moving it fixed that
[20:39] <Upu> I think that was the only real issue
[20:39] <Upu> thank adamgreig for the spot on that one
[20:39] <arjunnaha> Ok, thank you thank you thank you
[20:39] <Upu> you're welcome glad we got there in the end
[20:40] <SpacenearUS> New position from 03AIRCOR-61 after 032 days silence - 12http://tracker.habhub.org/#!qm=All&q=AIRCOR-61
[20:40] <arjunnaha> Upu daveake adamgreig craag Laurenceb_ Thanks
[20:40] <Geoff-G8DHE-M> Just got back ah USb problem wa sit
[20:40] <Upu> yeah
[20:41] <Upu> Average speed 8.8156 MSPS IQ
[20:41] <arjunnaha> Moved it and then it was 10
[20:41] <Geoff-G8DHE-M> Ah ha, yes Airspy does need the bandwidth
[20:41] <Upu> There is a 6Msps firmware I think ?
[20:41] <Upu> but you only need 2.5 anyway
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[21:30] <SpacenearUS> New vehicle on the map: 03M0DNY_chase - 12http://tracker.habhub.org/#!qm=All&q=M0DNY_chase
[21:33] <Vaizki> yea don't run airspy at 10Msps unless a) you have to and b) you have good USB hardware and drivers..
[21:33] Nick change: fl_0 -> fl_0|afk
[21:40] <prog> I recommend 10msps though
[21:41] <prog> oversampling makes a huge difference in signal quality
[21:47] <adamgreig> also I think the downsampling filter is a bit poor? seem to get some harmonics off it
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[21:47] <adamgreig> do you really see much improvement in signal quality from 10msps for narrowband signals?
[21:47] <adamgreig> don't see why you should
[21:47] <prog> you can make it very strong if you want
[21:47] <prog> <add key="airspy.highDynamicRangeDecimation" value="false" />
[21:47] <prog> change to true
[21:48] <adamgreig> is that just an sdr# thing?
[21:48] <prog> yes
[21:48] <prog> if you use other softwares, don't blame my filters hehe
[21:48] <adamgreig> doesn't the 2.5msps sample rate filter run on the airspy?
[21:48] <prog> no
[21:49] <prog> there's a lot of S in this SDR
[21:49] <adamgreig> sure, I'm aware
[21:49] <adamgreig> but I can ask the airspy for 2.5msps over the libairspy
[21:49] <adamgreig> which doesn't seem to decimate in the driver?
[21:49] <prog> it sets the ADC to 5MSPS
[21:50] <prog> then it's converted with a rotation, etc.
[21:50] <adamgreig> yea
[21:50] <adamgreig> does it also lower the AA filter bandwidth?
[21:50] <prog> but when you choose the decimation in sdr#, it uses a set of carefully designed FIRs
[21:50] <adamgreig> yea
[21:50] <prog> the AA channel filter is all analog
[21:50] <adamgreig> yea
[21:51] <prog> basically it's an anti-aliasing filter just before the ADC
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[21:51] <prog> and it is programmable
[21:51] <adamgreig> but presumably its bandwidth is reduced if you set the ADC to 5MSPS
[21:51] <prog> exactly
[21:51] <adamgreig> right, that's what I was asking
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[21:51] <adamgreig> what's wrong with using 2.5Msps from the airspy in that case, then?
[21:51] <adamgreig> surely for a narrowband signal that's just as good as the 10msps
[21:51] <prog> the strategy is to have "good enough" analog tilters and cut the aliases with DSP
[21:52] <adamgreig> uh
[21:52] <adamgreig> how can you use DSP to cut ADC sampling aliases if the AA filter was too wideband?
[21:52] <adamgreig> bit late by then :P
[21:52] <prog> the aliases only affect 10% of the bw
[21:52] <prog> when using the decimation, you get 0% of aliased spectrum
[21:53] <prog> the center portion of the spectrum (being cut) is alias free
[21:53] <adamgreig> sure
[21:53] <adamgreig> but if you don't decimate
[21:53] <prog> you have 10%
[21:53] <prog> which is also very good
[21:53] <adamgreig> is that the same for both 2.5Msps and 10Msps?
[21:53] <prog> yes
[21:53] <adamgreig> couldn't you program the AA filter to have a slightly narrower bandwidth?
[21:53] <prog> for 2.5 the filters are even more aggressive
[21:54] <prog> the minimum is 1.5MHz bw
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[21:54] <prog> this can change in another revision
[21:54] <adamgreig> seems like you shouldn't see much or any aliasing if you have a 1.5MHz AA filter and 5Msps ADC
[21:54] <prog> yes
[21:54] <adamgreig> (presumably the AA is >1.5MHz for 5Msps atm)
[21:54] <prog> that's why I said more aggressive
[21:55] <prog> the difference between 2.5 and 10 msps IQ is 6dB of dynamic range (or 1 ENOB)
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[22:42] <SpeedEvil> http://www.roadandtrack.com/new-cars/car-technology/a26653/toyota-patents-flying-car-stackable-wings/
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[23:22] <SpacenearUS> New vehicle on the map: 03RIA-20 - 12http://tracker.habhub.org/#!qm=All&q=RIA-20
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[00:00] --- Fri Sep 11 2015