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From: | Eric A. Cottrell |
Subject: | Re: [Discuss-gnuradio] ask : USRP Mode-S/ADS-B project |
Date: | Tue, 29 Apr 2008 22:29:51 -0400 |
User-agent: | Thunderbird 2.0.0.12 (X11/20080226) |
Bino Oetomo wrote:
Dear All I'm just searching about low cost ADS-B Receiver/Decoder solution.First, I found most people using SBS-1/RadarBox. They need to use propietary BaseStation software. But there is pio that looks like have a good progress on handling the output for linux and OS-xhttp://piopawlu.net/2008/04/15/sbs1-under-linux-and-mac-os-x/ And then I found GNU-Radio.I search the discussion archieve ... and looks like Eric have magic work on it.So .. how is the stage of this GNU-Radio USRP Mode-S project ?Is there any specific distribution for non technical people that just want to dumb decoded mode-s message to a console or pipe it to another program/script ?Regards -bino-
Hello,The code is still a work-in-progress. The hardware used, the USRP and DBSRX board, costs as much or slightly more than the RadarBox or SBS-1. It might be possible to do a simplified hardware board but I am not a hardware engineer. Mode-S/ADS-B has a 1 Megabit symbol rate which is way above what a sound card can do.
The code decodes to raw frames and the source is under my developer branch in the gnuradio repository. I need to convert it to use the new mblock scheme and to write some better output formatters and decoders. Mode-S and ADS-B are complex protocols.
My 1090 antenna was down for the winter and I am planning on putting up a better antenna even higher after the snow melts and the weather gets better.
73 Eric
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