{"id":111,"date":"2013-02-03T10:20:48","date_gmt":"2013-02-03T09:20:48","guid":{"rendered":"http:\/\/honza.paws.cz\/?p=111"},"modified":"2013-02-28T11:17:51","modified_gmt":"2013-02-28T10:17:51","slug":"ads-b-na-rtl-sdr","status":"publish","type":"post","link":"http:\/\/honza.paws.cz\/?p=111","title":{"rendered":"ADS-B na RTL SDR"},"content":{"rendered":"<p>P\u0159esunul jsem RTL krabi\u010dku z testov\u00e1n\u00ed na osobn\u00edm po\u010d\u00edta\u010di do m\u00e9ho Debian\u00edho serveru. Na Debianu maj\u00ed p\u0159\u00edznivci softwarov\u00e9ho radia bal\u00edky gnuradio u\u017e p\u0159edkompilovan\u00e9, zkompilovat jsem ovlada\u010de z v4l podle \u010dl\u00e1nku na wiki.ubuntu.cz, v\u011bnuj\u00edc\u00edmu se pr\u00e1v\u011b t\u011bmto televizn\u00edm krabi\u010dk\u00e1m a d\u00e1le zkompiloval bal\u00ed\u010dky <a href=\"http:\/\/sdr.osmocom.org\/trac\/wiki\/rtl-sdr\">rtl_sdr<\/a>, mezi nimi\u017e je i rtl_tcp. M\u016f\u017eu tedy ovl\u00e1dat softwarov\u00e9 r\u00e1dio p\u0159es s\u00ed\u0165 z jin\u00e9ho po\u010d\u00edta\u010de nap\u0159\u00edklad m\u00fdm obl\u00edben\u00fdm gqrx. Proto\u017ee zaj\u00edmav\u00fdm zdrojem radiem p\u0159en\u00e1\u0161en\u00fdch dat jsou letadla, p\u00e1tral jsem, jak si ud\u011blat vlastn\u00ed flightradar24.com s pomoc\u00ed rtl_adsb a dlouho nic nena\u0161el. A\u017e na <a href=\"http:\/\/g4vxe.blogspot.cz\/2013\/01\/raspberry-pi-progress-rtladsb-wspr-wsjt.html\" target=\"_blank\">blogu G4VXE<\/a> jsem narazil na referenci k programu dump1090 a ten funguje velmi p\u011bkn\u011b. Dokonce chyt\u00e1m data v p\u00e1smu 1&nbsp;GHz st\u00e1le na tu v\u0161esm\u011brovku pro 137&nbsp;MHz, nicm\u00e9n\u011b dosah nen\u00ed nijak z\u00e1vratn\u00fd. Postup je snadn\u00fd:<\/p>\n<pre>\r\ngit clone git:\/\/github.com\/antirez\/dump1090.git\r\n\r\ncd dump1090\r\nmake\r\n<\/pre>\n<p>A spust\u00edme v p\u011bkn\u00e9m p\u0159ehledov\u00e9m zobrazen\u00ed p\u0159\u00edkazem <\/p>\n<pre>.\/dump1090 --interactive<\/pre>\n<p> Z\u00edsk\u00e1m informace z letadel do vzd\u00e1lenosti 200&nbsp;km, sp\u00ed\u0161e v\u0161ak m\u00e9n\u011b, v\u00edc uvid\u00edm s l\u00e9pe nalad\u011bnou ant\u00e9nou.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>P\u0159esunul jsem RTL krabi\u010dku z testov\u00e1n\u00ed na osobn\u00edm po\u010d\u00edta\u010di do m\u00e9ho Debian\u00edho serveru. Na Debianu maj\u00ed p\u0159\u00edznivci softwarov\u00e9ho radia bal\u00edky gnuradio u\u017e p\u0159edkompilovan\u00e9, zkompilovat jsem ovlada\u010de z v4l podle \u010dl\u00e1nku na wiki.ubuntu.cz, v\u011bnuj\u00edc\u00edmu se pr\u00e1v\u011b t\u011bmto televizn\u00edm krabi\u010dk\u00e1m a d\u00e1le zkompiloval bal\u00ed\u010dky rtl_sdr, mezi nimi\u017e je i rtl_tcp. M\u016f\u017eu tedy ovl\u00e1dat softwarov\u00e9 r\u00e1dio p\u0159es s\u00ed\u0165 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[3],"tags":[],"_links":{"self":[{"href":"http:\/\/honza.paws.cz\/index.php?rest_route=\/wp\/v2\/posts\/111"}],"collection":[{"href":"http:\/\/honza.paws.cz\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/honza.paws.cz\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/honza.paws.cz\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/honza.paws.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=111"}],"version-history":[{"count":5,"href":"http:\/\/honza.paws.cz\/index.php?rest_route=\/wp\/v2\/posts\/111\/revisions"}],"predecessor-version":[{"id":209,"href":"http:\/\/honza.paws.cz\/index.php?rest_route=\/wp\/v2\/posts\/111\/revisions\/209"}],"wp:attachment":[{"href":"http:\/\/honza.paws.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=111"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/honza.paws.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=111"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/honza.paws.cz\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=111"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}