{"id":1609,"date":"2024-09-19T21:21:03","date_gmt":"2024-09-19T19:21:03","guid":{"rendered":"https:\/\/ok4md.liveu.cz\/?p=1609"},"modified":"2024-09-20T08:21:10","modified_gmt":"2024-09-20T06:21:10","slug":"aprs-jak-na-to","status":"publish","type":"post","link":"https:\/\/ok4md.liveu.cz\/index.php\/2024\/09\/19\/aprs-jak-na-to\/","title":{"rendered":"APRS – jak na to."},"content":{"rendered":"

Bav\u00ed v\u00e1s APRS? Pokud ano, tak n\u00e1sleduj\u00edc\u00edch p\u00e1r \u010dl\u00e1nk\u016f v\u00e1s mo\u017en\u00e1 zaujme. U\u017e v \u010dl\u00e1nku o spu\u0161t\u011bn\u00ed LoRa APRS iGate<\/a> jsem popsal jak p\u0159isp\u011bt k pokryt\u00ed br\u00e1nou, kter\u00e1 r\u00e1diov\u00fd provoz p\u0159enese do APRS-IS, tedy tam kde si to b\u011b\u017en\u00fd smrteln\u00edk m\u016f\u017ee zobrazit t\u0159eba na webov\u00e9 str\u00e1nce aprs.fi .<\/span>
\nLoRa je zaj\u00edmav\u00e1, p\u016fsobiv\u00e1 v \u00fa\u010dinnosti p\u0159enosov\u00e9ho protokolu vzhledem k pou\u017eit\u00e9mu v\u00fdkonu. Ale v tomto seri\u00e1lu \u010dl\u00e1nk\u016f bych se cht\u011bl v\u011bnovat nejroz\u0161\u00ed\u0159en\u011bj\u0161\u00edmu typu p\u0159enosu APRS protokolu, tomu na frekvenci 144.800 MHz. Tedy u n\u00e1s v IARU regionu I.. V severn\u00ed Americe se pou\u017e\u00edv\u00e1 frekvence 144.390 MHz. Ale celkov\u011b je t\u011bch frekvenci v p\u00e1smu dvou metr\u016f ve sv\u011bt\u011b jen p\u00e1r, v\u017edy definov\u00e1no region\u00e1ln\u00edm band pl\u00e1nem, co\u017e velmi zjednodu\u0161uje pou\u017e\u00edv\u00e1n\u00ed APRS i pro cestovatele. V ka\u017ed\u00e9m regionu IARU je definov\u00e1n i kmito\u010det pro UHF APRS a glob\u00e1ln\u011b jsou ur\u010den\u00e9 i kmito\u010dty pro APRS na kr\u00e1tk\u00fdch vln\u00e1ch. Ano i na kr\u00e1tk\u00fdch vln\u00e1ch se APRS pou\u017e\u00edv\u00e1. Dokonce ve v\u00edce aplikac\u00edch. I JS8Call m\u00e1 svou implementaci APRS.<\/span>
\nMo\u017enosti jak vyu\u017e\u00edt a t\u011b\u017eit z v\u00fdhod APRS\u00a0 je mnoho, za\u010dneme t\u00edm nejjednodu\u0161\u0161\u00edm, osobn\u00edm trackerem. Tedy t\u00edm co n\u00e1m nab\u00edz\u00ed radiostanice vybaven\u00e9 APRS. Nen\u00ed jich moc, radiostanice s podporou APRS moc v\u00fdrobc\u016f nenab\u00edz\u00ed. Jistota je Kenwood a Yaesu. Potom m\u00e1me Anytone verze s podporou APRS a p\u00e1r dal\u0161\u00edch vyn\u00e1lez\u016f \u010d\u00ednsk\u00e9 v\u00fdvoj\u00e1\u0159sk\u00e9 \u0161koly. Kupodivu to n\u011bkdy funguje a z\u00e1kladn\u00ed operace APRS, t\u0159eba pos\u00edl\u00e1n\u00ed polohy, to zvl\u00e1dne.V\u011bt\u0161inou to t\u00edm kon\u010d\u00ed.<\/span>
\nA ceny? Slu\u0161nou stanici pro pr\u00e1ci na APRS po\u0159\u00edd\u00edte od 11 do 22 tis\u00edc korun. Tolik stoj\u00ed stanice Yaesu a Kenwood. Od zhruba 3 do 6 tis\u00edc se\u017eenete \u010d\u00ednsk\u00e9 radiostanice se z\u00e1kladn\u00ed podporou pro APRS.<\/span>
\nJe tu v\u0161ak i t\u0159et\u00ed cesta. Ani \u010c\u00edna ani zna\u010dka.<\/span>
\nD\u00edky tomu, \u017ee APRS protokol je dokonale a do detailu pops\u00e1n, vzniklo n\u011bkolik softwarov\u00fdch \u0159e\u0161en\u00ed, kter\u00e9 umo\u017en\u00ed abyste i s nejlevn\u011bj\u0161\u00ed radiostanici mohli plnohodnotn\u011b pracovat na APRS.<\/span>
\nJak na to? Z\u016fsta\u0148te na p\u0159\u00edjmu, u\u017e se to p\u0159ipravuje.<\/span><\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Bav\u00ed v\u00e1s APRS? Pokud ano, tak n\u00e1sleduj\u00edc\u00edch p\u00e1r \u010dl\u00e1nk\u016f v\u00e1s mo\u017en\u00e1 zaujme. U\u017e v \u010dl\u00e1nku o spu\u0161t\u011bn\u00ed LoRa APRS iGate jsem popsal jak p\u0159isp\u011bt k pokryt\u00ed br\u00e1nou, kter\u00e1 r\u00e1diov\u00fd provoz p\u0159enese do APRS-IS, tedy tam kde si to b\u011b\u017en\u00fd smrteln\u00edk m\u016f\u017ee zobrazit […]<\/a><\/p>\n<\/div>","protected":false},"author":1,"featured_media":1631,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1609","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nezarazene"],"_links":{"self":[{"href":"https:\/\/ok4md.liveu.cz\/index.php\/wp-json\/wp\/v2\/posts\/1609","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ok4md.liveu.cz\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ok4md.liveu.cz\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ok4md.liveu.cz\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ok4md.liveu.cz\/index.php\/wp-json\/wp\/v2\/comments?post=1609"}],"version-history":[{"count":24,"href":"https:\/\/ok4md.liveu.cz\/index.php\/wp-json\/wp\/v2\/posts\/1609\/revisions"}],"predecessor-version":[{"id":1638,"href":"https:\/\/ok4md.liveu.cz\/index.php\/wp-json\/wp\/v2\/posts\/1609\/revisions\/1638"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ok4md.liveu.cz\/index.php\/wp-json\/wp\/v2\/media\/1631"}],"wp:attachment":[{"href":"https:\/\/ok4md.liveu.cz\/index.php\/wp-json\/wp\/v2\/media?parent=1609"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ok4md.liveu.cz\/index.php\/wp-json\/wp\/v2\/categories?post=1609"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ok4md.liveu.cz\/index.php\/wp-json\/wp\/v2\/tags?post=1609"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}