ADS-B via a TV tuner dongel

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VK5PJ
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ADS-B via a TV tuner dongel

Post by VK5PJ » Sun Aug 04, 2013 7:21 am

Hello,
In the August edition of the Silicon Chip magazine there are two articles on ADS-B, one describing its fundamentals and the second on the choice of a USB TV tuner device and putting it into operation, including the how and where of the needed software.

As I have recently bought a pair of these through a club group buy (probably not their preferred ones), I will give this a go myself but thought there might be others who do no buy this magazine that may miss out on the chance to buy the magazine for their reference.
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Re: ADS-B via a TV tuner dongel

Post by VK4GHZ » Sun Aug 04, 2013 8:51 am

VK5PJ wrote:Hello,
In the August edition of the Silicon Chip magazine there are two articles on ADS-B, one describing its fundamentals and the second on the choice of a USB TV tuner device and putting it into operation, including the how and where of the needed software.
Hi Peter
What is the advantage in having your own ADS-B receiving system, say compared to just watching it all happen on FlightRadar24?
(And from a much larger pool of spotters)

I wonder if these dongles can be used for AIS reception for marine tracking?
(Has anyone come across this info?)
Now this would be handy, as you could "see" what tropo opportunities may exist from your own QTH.
Adam, Brisbane
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Re: ADS-B via a TV tuner dongel

Post by VK5PJ » Sun Aug 04, 2013 9:17 am

Gidday Adam,
I am not sure there is well defined advantage of having your own, other than the sense of self achievement and experimentation.

Have taken my own challenge and this morning while running FSK441 on 2Mx installed the software and the USB dongle on my not overly special shack PC (win 7 23bit on a Acer L4610 [small form factor] dualcore CPU). The article in Silicon chip is quite wordy and seems to get deeply involved with needless aspects but it will get anyone willing to try to a good result.

I am seeing a single air craft at present (VOZ551) off of a totally non resonant discone antenna, with no pre-amp, so yes it can be done by Joe average HAM.

Next challenge is the previous article from Silicon Chip earlier this year to use this same USB TV tuner as an SDR for VHF/UHF so I can monitor and display the outputs from my bits on the work bench.

Regards,
Peter.

edit
Just found this one for you Adam:

http://www.rtl-sdr.com/rtl-sdr-tutorial ... -tracking/ ship tracking using an RTL USB TV tuner

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Re: ADS-B via a TV tuner dongel

Post by VK4CZ » Sun Aug 04, 2013 10:45 am

Just found this one for you Adam:

http://www.rtl-sdr.com/rtl-sdr-tutorial ... -tracking/ ship tracking using an RTL USB TV tuner
Tnx Peter for that.... got me started :?
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Re: ADS-B via a TV tuner dongel

Post by VK4GHZ » Sun Aug 04, 2013 12:07 pm

VK5PJ wrote: Just found this one for you Adam:

http://www.rtl-sdr.com/rtl-sdr-tutorial ... -tracking/ ship tracking using an RTL USB TV tuner
Nice find Peter.
Blogs and small websites don't always get indexed that well by search engines, and I have been on the lookout for an alternative to a $700 AIS receiver.
Thanks for sharing this information via the forum.
Adam, Brisbane
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Re: ADS-B via a TV tuner dongle

Post by VK3BJM » Sun Aug 04, 2013 12:18 pm

VK4GHZ wrote:What is the advantage in having your own ADS-B receiving system, say compared to just watching it all happen on FlightRadar24?
Adam,

Probably the only - possibly minor - benefit to running your own ADS-B receiver is the certainty that your station can actually see the aircraft that you are interested in, at the time that it matters.

When using data on FR24, from another's receiver, that data is based on that receiver's horizon. They may have a brilliant horizon to the aircraft, but you may not - so there's the chance that the aircraft will be shown, but you won't be able to hit it. That can be frustrating.

And of course the reverse could apply, where you could have a potential path open up, but you won't know it if that other receiver doesn't see the aircraft. That is less frustrating, but only as we are now into Rumsfeld's "Unknown Unknowns" territory... :roll:

For shorter paths, the chances of this scenario would fall a fair bit. But if you are looking at pushing the distance limits, that will become more important.

I also figure that if I can see the aircraft on my receiver, then I can definitely hit it with my own RF. Additionally, you can get other useful info direct from the aircraft, which I don't think FR24 will give you; most importantly the bearing from your station.

I've been running an ADS-B receiver here for nearly 5 years now, and on the occasions where I've had an equipment failure (I.E. the ADS-B pre-amp has died) even running with FR24 as a back-up plan I feel like I'm flying blind.

I also get the satisfaction of being a contributor to the likes of FR24.

73,
Barry
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ADS-B via a TV tuner dongel

Post by VK5PJ » Sun Aug 04, 2013 7:09 pm

Hello fellow experimenters,
here are the links for software used by me today, as this is public information I can not be infringing on the copy right of the magazine :D (I hope)

Driver package:
The package used is called ZADIG and can be found here: http://sourceforge.net/projects/libwdi/files/zadig/ there is a number of files on this page.

Windows 7 users: http://sourceforge.net/projects/libwdi/ ... z/download

Windows XP users: http://sourceforge.net/projects/libwdi/ ... z/download

ADS-B decoder:
This is from SDRSharp : http://sdrsharp.com/downloads/adsbsharp.zip

ADS-B Processor and display:
This is from sprut.de, this web page is all in German: http://sprut.de/electronic/pic/projekte/adsb/adsb.htm to find the file scroll DOWN quite a bit until you find the files about 2/3 of the way down http://sprut.de/electronic/pic/projekte ... sb_all.zip

PlanePlotter (I have not used this yet) now in the magazine they say its "PlaneSpotter" and give the WRONG URL to download it so this is a correction to the information that they give: http://www.coaa.co.uk/planeplotter.htm


For those looking to use one of the TV dongles as an SDR, you can refer to the May 2013 issue of Silicon Chip for their take on the subject (not read it thoroughly yet as I have been absorbed by the ADS-B today)
Peter Sumner, vk5pj
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Re: ADS-B via a TV tuner dongel

Post by VK6XLR » Mon Aug 05, 2013 10:09 pm

Totally agree with Barry, VK3BJM.

I too ran my own ADS-B system feeding both PlaneFinder and Flightradar 24, when in Geraldton WA.
Was very interesting to see when conditions opened up, to how far out I could receive.

I built this antenna and it worked very well.

Image

73,
Rick Kowalewski
-- Perth, WA, 6530 -- OF77xw --
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