{"id":3165,"date":"2019-03-09T22:17:33","date_gmt":"2019-03-09T21:17:33","guid":{"rendered":"http:\/\/ok2haz.ok2kld.cz\/ok2haz\/?p=3165"},"modified":"2020-04-16T08:14:59","modified_gmt":"2020-04-16T07:14:59","slug":"poslech-geostacionarnho-transponderu-eshail-2","status":"publish","type":"post","link":"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/2019\/03\/poslech-geostacionarnho-transponderu-eshail-2\/","title":{"rendered":"Poslech geostacion\u00e1rn\u00edho transpond\u00e9ru EsHail-2"},"content":{"rendered":"\n<p>Projekt <a href=\"https:\/\/amsat-uk.org\/satellites\/geosynchronous\/eshail-2\/\">Es\u2019Hail 2<\/a>  sleduji ji\u017e dlouhou dobu. Jedn\u00e1 se o prvn\u00ed geostacion\u00e1rn\u00ed transpond\u00e9r  ur\u010den\u00fd \u010dist\u011b radioamar\u00e9r\u016fm, kter\u00fd byl 15. prosince 2018 v 20:46 UTC  vypu\u0161t\u011bn z Kennedyho vesm\u00edrn\u00e9ho st\u0159ediska (rampa LC-39A). Nyn\u00ed je ji\u017e na  geostacion\u00e1rn\u00ed orbit\u011b, p\u0159esn\u011b na 25.5\u00b0 E. Od 12.2.2019 je pln\u011b aktivn\u00ed a  dostupn\u00fd u\u017eivatel\u016fm. Oblast pokryt\u00ed je cca 1\/3 zemsk\u00e9ho povrchu &#8211; od  Braz\u00edlie po Thajsko:) <\/p>\n\n\n\n<p>Radioamat\u00e9rsk\u00fdch dru\u017eic je v dne\u0161n\u00ed dob\u011b ji\u017e pom\u011brn\u011b velk\u00e9 mno\u017estv\u00ed, jsou ale na n\u00edzk\u00fdch ob\u011b\u017en\u00fdch drah\u00e1ch (cca 600-800km). Musej\u00ed tedy zemi ob\u00edhat rychlost\u00ed v\u011bt\u0161\u00ed ne\u017e je rychlost jej\u00edho ot\u00e1\u010den\u00ed. Tak aby byla zachov\u00e1na rovnov\u00e1ha mezi zemskou p\u0159ita\u017elivost\u00ed a odst\u0159edivou silou. Z toho vypl\u00fdv\u00e1 \u017ee dru\u017eice se po obloze pohybuje a je t\u0159eba ji ant\u00e9nn\u00edm syst\u00e9mem sledovat. Geostacion\u00e1rn\u00ed dru\u017eice se ale nach\u00e1zej\u00ed ve vzd\u00e1lenosti mnohem v\u011bt\u0161\u00ed (cca 36 000km) a ob\u00edhaj\u00ed zemi stejnou \u00fahlovou rychlost\u00ed jako je jej\u00ed ot\u00e1\u010den\u00ed. Na obloze tedy zd\u00e1nliv\u011b &#8222;stoj\u00ed&#8220; a ant\u00e9na na zemi m\u016f\u017ee b\u00fdt pevn\u011b uchycena, bez nutnosti motorick\u00e9ho nat\u00e1\u010den\u00ed. <\/p>\n\n\n\n<p>Es\u2019hail-2 pracuje v p\u00e1smech 2400MHz (Uplink) \/ 10490MHz (Downlink). Ve vertik\u00e1ln\u00ed polarizaci je k dispozici line\u00e1rn\u00ed segment o \u0161\u00ed\u0159ce 250kHz, v horizont\u00e1n\u00ed pak 8MHz pro digit\u00e1ln\u00ed DVB-S2 \ud83d\ude42<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Prvn\u00ed pokusy o p\u0159\u00edjem:<\/h4>\n\n\n\n<p>Prvn\u00ed pokusy jsem podnikal s Tondou OK2JNX pomoc\u00ed klasick\u00e9ho satelitn\u00edho konvertoru (kter\u00fdch se na st\u0159e\u0161e v\u00e1l\u00ed:) &#8211; norm\u00e1ln\u011b je zn\u00e1m\u00fd pod zkratkou <strong>LNB<\/strong>, kter\u00fd byl po ruce. Bohu\u017eel,  jednalo se o star\u00fd konvertor, kter\u00fd m\u00e1 jednodu\u0161e \u0159e\u0161en\u00e9  lok\u00e1ln\u00ed oscil\u00e1tory (LO) &#8211; ty jsou realizov\u00e1ny pomoc\u00ed dielektrick\u00fdch rezon\u00e1tor\u016f (DRO). Pro Low a High band zvl\u00e1\u0161\u0165, jejich kmito\u010det se nastavuje stav\u00edc\u00edmi \u0161roubky, kter\u00e9 vid\u00edme na krytu (ozna\u010den\u00e9 L a H).<br><\/p>\n\n\n\n<figure class=\"wp-block-gallery columns-3 is-cropped wp-block-gallery-2 is-layout-flex wp-block-gallery-is-layout-flex\"><ul class=\"blocks-gallery-grid\"><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/DSCN3817-1600x1200.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"1200\" src=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/DSCN3817-1600x1200.jpg\" alt=\"\" data-id=\"3187\" data-link=\"http:\/\/ok2haz.ok2kld.cz\/ok2haz\/dscn3817\/\" class=\"wp-image-3187\" srcset=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/DSCN3817-1600x1200.jpg 1600w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/DSCN3817-300x225.jpg 300w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/DSCN3817-768x576.jpg 768w\" sizes=\"auto, (max-width: 1600px) 100vw, 1600px\" \/><\/a><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/DSCN3818-1600x1200.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"1200\" src=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/DSCN3818-1600x1200.jpg\" alt=\"\" data-id=\"3188\" data-link=\"http:\/\/ok2haz.ok2kld.cz\/ok2haz\/dscn3818\/\" class=\"wp-image-3188\" srcset=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/DSCN3818-1600x1200.jpg 1600w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/DSCN3818-300x225.jpg 300w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/DSCN3818-768x576.jpg 768w\" sizes=\"auto, (max-width: 1600px) 100vw, 1600px\" \/><\/a><figcaption class=\"blocks-gallery-item__caption\">Stav\u00edc\u00ed \u0161toubky<\/figcaption><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/DRO.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"1200\" src=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/DRO.jpg\" alt=\"\" data-id=\"3377\" data-link=\"http:\/\/ok2haz.ok2kld.cz\/ok2haz\/dro\/\" class=\"wp-image-3377\" srcset=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/DRO.jpg 1600w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/DRO-300x225.jpg 300w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/DRO-768x576.jpg 768w\" sizes=\"auto, (max-width: 1600px) 100vw, 1600px\" \/><\/a><\/figure><\/li><\/ul><\/figure>\n\n\n\n<p>S t\u00edmto LNB je poslech satelitu samoz\u0159ejm\u011b mo\u017en\u00fd, ale vzhledem k jeho kmito\u010dtov\u00e9 nestabilit\u011b obt\u00ed\u017en\u00fd. P\u0159i pouh\u00e9m doteku na F konektor se kmito\u010det m\u011bn\u00ed a\u017e o +-25kHz. Sign\u00e1l je ov\u0161em i v &#8222;klidu&#8220; nestabiln\u00ed a rozechv\u011bl\u00fd, jak se m\u016f\u017eeme p\u0159esv\u011bd\u010dit na n\u00e1sleduj\u00edc\u00edch vide\u00edch. Na prvn\u00edm je poslech prost\u0159ednictv\u00edm  samotn\u00e9ho konvertoru , tedy bez parabolick\u00e9 ant\u00e9ny. Na druh\u00e9m s 60cm offset ant\u00e9nou.<\/p>\n\n\n\n<figure class=\"wp-block-embed-youtube wp-block-embed is-type-video is-provider-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\"  id=\"_ytid_76495\"  width=\"678\" height=\"381\"  data-origwidth=\"678\" data-origheight=\"381\" src=\"https:\/\/www.youtube.com\/embed\/FEY53zQ6368?enablejsapi=1&#038;autoplay=0&#038;cc_load_policy=0&#038;cc_lang_pref=&#038;iv_load_policy=1&#038;loop=0&#038;rel=1&#038;fs=1&#038;playsinline=0&#038;autohide=2&#038;theme=dark&#038;color=red&#038;controls=1&#038;disablekb=0&#038;\" class=\"__youtube_prefs__  epyt-is-override  no-lazyload\" title=\"YouTube player\"  allow=\"fullscreen; accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen data-no-lazy=\"1\" data-skipgform_ajax_framebjll=\"\"><\/iframe>\n<\/div><figcaption>Poslech na samotn\u00fd LNB -bez PLL&#8230;<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-embed-youtube wp-block-embed is-type-video is-provider-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\"  id=\"_ytid_38966\"  width=\"678\" height=\"381\"  data-origwidth=\"678\" data-origheight=\"381\" src=\"https:\/\/www.youtube.com\/embed\/3n1htpXzFQU?enablejsapi=1&#038;autoplay=0&#038;cc_load_policy=0&#038;cc_lang_pref=&#038;iv_load_policy=1&#038;loop=0&#038;rel=1&#038;fs=1&#038;playsinline=0&#038;autohide=2&#038;theme=dark&#038;color=red&#038;controls=1&#038;disablekb=0&#038;\" class=\"__youtube_prefs__  epyt-is-override  no-lazyload\" title=\"YouTube player\"  allow=\"fullscreen; accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen data-no-lazy=\"1\" data-skipgform_ajax_framebjll=\"\"><\/iframe>\n<\/div><figcaption>Poslech SSB na LNB bez PLL &#8211; 60cm offset ant.<\/figcaption><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\"><br>P\u0159esn\u00e9 nastaven\u00ed ant\u00e9ny:<\/h4>\n\n\n\n<p>P\u0159esn\u00e9 koordin\u00e1ty pro nastaven\u00ed (v m\u00e9m p\u0159\u00edpad\u011b Praha) jsou:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Elevace:  31.6\u00b0 <\/li><li>Azimut:&nbsp; 165.6\u00b0 <\/li><li>LNB Skew: -9.2\u00b0 (\u00fahel sto\u010den\u00ed polarizace)<\/li><\/ul>\n\n\n\n<p>\nNa sn\u00edmc\u00edch m\u016f\u017eete vid\u011bt jednu z prvn\u00edch mont\u00e1\u017e\u00ed. Zem byla je\u0161t\u011b zmrzl\u00e1,\n  v\u00fdlo\u017en\u00edk na st\u011bn\u011b nebyl, tak jsme pou\u017eili oby\u010dejn\u00e9 vidle:)\n\n<\/p>\n\n\n\n<figure class=\"wp-block-gallery columns-2 is-cropped wp-block-gallery-3 is-layout-flex wp-block-gallery-is-layout-flex\"><ul class=\"blocks-gallery-grid\"><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/satelit_na_vidlich2-900x1200.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"1200\" src=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/satelit_na_vidlich2-900x1200.jpg\" alt=\"\" data-id=\"3411\" data-link=\"http:\/\/ok2haz.ok2kld.cz\/ok2haz\/satelit_na_vidlich2\/\" class=\"wp-image-3411\" srcset=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/satelit_na_vidlich2-900x1200.jpg 900w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/satelit_na_vidlich2-225x300.jpg 225w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/satelit_na_vidlich2-768x1024.jpg 768w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><\/a><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/satelit_na_vidlich-900x1200.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"1200\" src=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/satelit_na_vidlich-900x1200.jpg\" alt=\"\" data-id=\"3403\" data-link=\"http:\/\/ok2haz.ok2kld.cz\/ok2haz\/satelit_na_vidlich\/\" class=\"wp-image-3403\" srcset=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/satelit_na_vidlich-900x1200.jpg 900w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/satelit_na_vidlich-225x300.jpg 225w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/satelit_na_vidlich-768x1024.jpg 768w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><\/a><\/figure><\/li><\/ul><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\"> <br>Prvn\u00ed vylep\u0161en\u00ed: <\/h4>\n\n\n\n<p>Prvn\u00edm upgradem byla v\u00fdm\u011bna LNB za typ, kter\u00fd bude obsahovat f\u00e1zov\u00fd z\u00e1v\u011bs. T\u00edm byl konvertor zna\u010dky Amiko, typ L-107. <\/p>\n\n\n\n<figure class=\"wp-block-gallery columns-3 is-cropped wp-block-gallery-4 is-layout-flex wp-block-gallery-is-layout-flex\"><ul class=\"blocks-gallery-grid\"><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/DSCN3826-1600x1200.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"1200\" src=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/DSCN3826-1600x1200.jpg\" alt=\"\" data-id=\"3192\" data-link=\"http:\/\/ok2haz.ok2kld.cz\/ok2haz\/dscn3826\/\" class=\"wp-image-3192\" srcset=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/DSCN3826-1600x1200.jpg 1600w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/DSCN3826-300x225.jpg 300w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/DSCN3826-768x576.jpg 768w\" sizes=\"auto, (max-width: 1600px) 100vw, 1600px\" \/><\/a><figcaption class=\"blocks-gallery-item__caption\">LNB Amiko L-107<\/figcaption><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/DSCN3834-1600x1200.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"1200\" src=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/DSCN3834-1600x1200.jpg\" alt=\"\" data-id=\"3194\" data-link=\"http:\/\/ok2haz.ok2kld.cz\/ok2haz\/dscn3834\/\" class=\"wp-image-3194\" srcset=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/DSCN3834-1600x1200.jpg 1600w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/DSCN3834-300x225.jpg 300w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/DSCN3834-768x576.jpg 768w\" sizes=\"auto, (max-width: 1600px) 100vw, 1600px\" \/><\/a><figcaption class=\"blocks-gallery-item__caption\">Vnit\u0159n\u00ed uspo\u0159\u00e1d\u00e1n\u00ed<\/figcaption><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/DSCN3831-1600x1200.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"1200\" src=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/DSCN3831-1600x1200.jpg\" alt=\"\" data-id=\"3193\" data-link=\"http:\/\/ok2haz.ok2kld.cz\/ok2haz\/dscn3831\/\" class=\"wp-image-3193\" srcset=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/DSCN3831-1600x1200.jpg 1600w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/DSCN3831-300x225.jpg 300w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/DSCN3831-768x576.jpg 768w\" sizes=\"auto, (max-width: 1600px) 100vw, 1600px\" \/><\/a><figcaption class=\"blocks-gallery-item__caption\"> Detail PLL  TFF1015  <\/figcaption><\/figure><\/li><\/ul><\/figure>\n\n\n\n<p><br>Tento konvertor obsahuje f\u00e1zov\u00fd z\u00e1v\u011bs  TFF1015, d\u00e1le vid\u00edme band-pass filtr a sm\u011b\u0161ova\u010d. Trochu jsem se ob\u00e1val, \u017ee propust bude m\u00edt mimo p\u016fvodn\u011b zam\u00fd\u0161len\u00e9 p\u00e1smo 10,7-12,75GHz znateln\u00fd \u00fatlum, ale p\u0159i m\u011b\u0159en\u00ed se uk\u00e1zalo, \u017ee je citliv\u011bj\u0161\u00ed ne\u017e p\u016fvodn\u00e9 zkou\u0161en\u00fd &#8222;noname&#8220; LNB bez PLL. Sign\u00e1ly jsou o pozn\u00e1n\u00ed stabiln\u011bj\u0161\u00ed, viz n\u00e1sleduj\u00edc\u00ed videa.<\/p>\n\n\n\n<figure class=\"wp-block-embed-youtube wp-block-embed is-type-video is-provider-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\"  id=\"_ytid_65800\"  width=\"678\" height=\"381\"  data-origwidth=\"678\" data-origheight=\"381\" src=\"https:\/\/www.youtube.com\/embed\/dghBpyzJBbE?enablejsapi=1&#038;autoplay=0&#038;cc_load_policy=0&#038;cc_lang_pref=&#038;iv_load_policy=1&#038;loop=0&#038;rel=1&#038;fs=1&#038;playsinline=0&#038;autohide=2&#038;theme=dark&#038;color=red&#038;controls=1&#038;disablekb=0&#038;\" class=\"__youtube_prefs__  epyt-is-override  no-lazyload\" title=\"YouTube player\"  allow=\"fullscreen; accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen data-no-lazy=\"1\" data-skipgform_ajax_framebjll=\"\"><\/iframe>\n<\/div><figcaption>Amiko LNB s PLL &#8211; pouze konvertor<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-embed-youtube wp-block-embed is-type-video is-provider-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\"  id=\"_ytid_80914\"  width=\"678\" height=\"381\"  data-origwidth=\"678\" data-origheight=\"381\" src=\"https:\/\/www.youtube.com\/embed\/t43IO9QfATE?enablejsapi=1&#038;autoplay=0&#038;cc_load_policy=0&#038;cc_lang_pref=&#038;iv_load_policy=1&#038;loop=0&#038;rel=1&#038;fs=1&#038;playsinline=0&#038;autohide=2&#038;theme=dark&#038;color=red&#038;controls=1&#038;disablekb=0&#038;\" class=\"__youtube_prefs__  epyt-is-override  no-lazyload\" title=\"YouTube player\"  allow=\"fullscreen; accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen data-no-lazy=\"1\" data-skipgform_ajax_framebjll=\"\"><\/iframe>\n<\/div><figcaption>Poslech s 80cm offset ant.<\/figcaption><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">Nedostatkem z\u016fst\u00e1vaj\u00ed dv\u011b v\u011bci:<\/h4>\n\n\n\n<ul class=\"wp-block-list\"><li>kmito\u010dtov\u00fd drift zp\u016fsoben\u00fd zm\u011bnou teploty. Referen\u010dn\u00ed kmito\u010det pro PLL je d\u00e1n u tohoto typu LNB klasick\u00fdm krystalem 25MHz. Chyba ale nen\u00ed tak z\u00e1sadn\u00ed a d\u00e1 se s n\u00ed bez pot\u00ed\u017e\u00ed fungovat. Pokud by p\u0159eci jen vadila, krystal m\u016f\u017eeme jednodu\u0161e nahradit TCXO nebo extern\u00edm zdrojem<\/li><li>pokud se na p\u0159ij\u00edman\u00fd sign\u00e1l zam\u011b\u0159\u00edme zbl\u00edzka, jak na spektru, tak poslechem (nejl\u00e9pe CW), m\u016f\u017eeme zjistit \u017ee se kmito\u010det st\u00e1le chv\u011bje s chybou cca  \u00b1 25Hz. To m\u016f\u017ee b\u00fdt probl\u00e9m zejm\u00e9na u digit\u00e1ln\u00edch provoz\u016f. Vzhledem k tomu, \u017ee lok\u00e1ln\u00ed oscil\u00e1tor LO (9,75GHz) m\u00e1 390x v\u011bt\u0161\u00ed kmito\u010det ne\u017e z\u00e1kladn\u00ed oscil\u00e1tor (25MHz), znamen\u00e1 to chybu z\u00e1kladn\u00edho oscil\u00e1toru  \u00b1 64mHz. Zde se ji\u017e m\u016f\u017ee uplatnit &#8222;mikrofonnost&#8220; krystalu kde se sebemen\u0161\u00ed chv\u011bn\u00ed projev\u00ed zm\u011bnou kmito\u010dtu, kterou se pak sna\u017e\u00ed korigovat PLL. Op\u011bt by zde pomohl upgrade o zdroj extern\u00edho ref. kmito\u010dtu, stabilizovan\u00e9ho vhodn\u00fdm kmito\u010dtov\u00fdm norm\u00e1lem.<\/li><\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">Pou\u017e\u00edvan\u00fd provoz:<\/h4>\n\n\n\n<p>V \u00fazkop\u00e1smov\u00e9m segmentu je mo\u017eno polouchat provozy v r\u016fzn\u00fdch m\u00f3dech. Telegrafem po\u010d\u00ednaje, p\u0159es PSK31, SSTV, RTTY, FreeDV a\u017e po SSB \ud83d\ude42<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Pokusy s p\u0159\u00edjmem SSTV a DRM<\/h4>\n\n\n\n<figure class=\"wp-block-gallery columns-3 is-cropped wp-block-gallery-5 is-layout-flex wp-block-gallery-is-layout-flex\"><ul class=\"blocks-gallery-grid\"><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/201903091936.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"320\" height=\"256\" src=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/201903091936.jpg\" alt=\"\" data-id=\"3477\" data-link=\"http:\/\/ok2haz.ok2kld.cz\/ok2haz\/201903091936\/\" class=\"wp-image-3477\" srcset=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/201903091936.jpg 320w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/201903091936-300x240.jpg 300w\" sizes=\"auto, (max-width: 320px) 100vw, 320px\" \/><\/a><figcaption class=\"blocks-gallery-item__caption\">Analog<\/figcaption><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/201903170955.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"320\" height=\"256\" src=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/201903170955.jpg\" alt=\"\" data-id=\"3478\" data-link=\"http:\/\/ok2haz.ok2kld.cz\/ok2haz\/201903170955\/\" class=\"wp-image-3478\" srcset=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/201903170955.jpg 320w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/201903170955-300x240.jpg 300w\" sizes=\"auto, (max-width: 320px) 100vw, 320px\" \/><\/a><figcaption class=\"blocks-gallery-item__caption\">Analog<\/figcaption><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/201903170956.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"320\" height=\"256\" src=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/201903170956.jpg\" alt=\"\" data-id=\"3479\" data-link=\"http:\/\/ok2haz.ok2kld.cz\/ok2haz\/201903170956\/\" class=\"wp-image-3479\" srcset=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/201903170956.jpg 320w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/201903170956-300x240.jpg 300w\" sizes=\"auto, (max-width: 320px) 100vw, 320px\" \/><\/a><figcaption class=\"blocks-gallery-item__caption\">Analog<\/figcaption><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/201903201734.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"320\" height=\"256\" src=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/201903201734.jpg\" alt=\"\" data-id=\"3492\" data-link=\"http:\/\/ok2haz.ok2kld.cz\/ok2haz\/201903201734\/\" class=\"wp-image-3492\" srcset=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/201903201734.jpg 320w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/201903201734-300x240.jpg 300w\" sizes=\"auto, (max-width: 320px) 100vw, 320px\" \/><\/a><figcaption class=\"blocks-gallery-item__caption\">Analog<\/figcaption><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/201903201732.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"320\" height=\"256\" src=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/201903201732.jpg\" alt=\"\" data-id=\"3493\" data-link=\"http:\/\/ok2haz.ok2kld.cz\/ok2haz\/201903201732\/\" class=\"wp-image-3493\" srcset=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/201903201732.jpg 320w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/201903201732-300x240.jpg 300w\" sizes=\"auto, (max-width: 320px) 100vw, 320px\" \/><\/a><figcaption class=\"blocks-gallery-item__caption\">Analog<\/figcaption><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/201903201727.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"320\" height=\"256\" src=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/201903201727.jpg\" alt=\"\" data-id=\"3494\" data-link=\"http:\/\/ok2haz.ok2kld.cz\/ok2haz\/201903201727\/\" class=\"wp-image-3494\" srcset=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/201903201727.jpg 320w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/201903201727-300x240.jpg 300w\" sizes=\"auto, (max-width: 320px) 100vw, 320px\" \/><\/a><figcaption class=\"blocks-gallery-item__caption\">Analog<\/figcaption><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/dtv2.png\"><img loading=\"lazy\" decoding=\"async\" width=\"320\" height=\"240\" src=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/dtv2.png\" alt=\"\" data-id=\"3491\" data-link=\"http:\/\/ok2haz.ok2kld.cz\/ok2haz\/dtv2\/\" class=\"wp-image-3491\" srcset=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/dtv2.png 320w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/dtv2-300x225.png 300w\" sizes=\"auto, (max-width: 320px) 100vw, 320px\" \/><\/a><figcaption class=\"blocks-gallery-item__caption\">Digital<\/figcaption><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/dtv.png\"><img loading=\"lazy\" decoding=\"async\" width=\"320\" height=\"240\" src=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/dtv.png\" alt=\"\" data-id=\"3490\" data-link=\"http:\/\/ok2haz.ok2kld.cz\/ok2haz\/dtv\/\" class=\"wp-image-3490\" srcset=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/dtv.png 320w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/dtv-300x225.png 300w\" sizes=\"auto, (max-width: 320px) 100vw, 320px\" \/><\/a><figcaption class=\"blocks-gallery-item__caption\">Digital<\/figcaption><\/figure><\/li><\/ul><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">Mezifrekvence LNB:<\/h4>\n\n\n\n<p> Konvertor s lok\u00e1ln\u00edm oscil\u00e1torem o kmito\u010dtu 9,75GHz poskytuje  mezifrekven\u010dn\u00ed produkt na cca 740MHz, tam jej p\u0159ij\u00edm\u00e1m pomoc\u00ed SDR  p\u0159ij\u00edma\u010de AirSPY. <br><em>Pro poslech jde bez probl\u00e9m\u016f pou\u017e\u00edt i RTL-SDR USB kl\u00ed\u010denka za 250k\u010d, konveror Amiko L-107 p\u0159ijde na 90k\u010d.<\/em><\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Chystan\u00fd dal\u0161\u00ed upgrade:<\/h4>\n\n\n\n<p>Samoz\u0159ejm\u011b si chyst\u00e1m vybaven\u00ed i na uplink v p\u00e1smu 13cm\/2400MHz. Nejlep\u0161\u00ed se mi jev\u00ed <a href=\"http:\/\/dl1mfk.de\/Sonstiges\/Darko\/\">UP-konvertor BU500<\/a> od OE7DBH. Jedn\u00e1 se o p\u011bkn\u00e9 mal\u00e9 \u0159e\u0161en\u00ed s PLL z\u00e1v\u011bsem, kter\u00e9 je mo\u017en\u00e9 p\u0159eprogramovat LO jednodu\u0161e pomoc\u00ed USB rozhran\u00ed. Vf v\u00fdkon dosahuje 0,5W p\u0159i SSB A 0,2W p\u0159i DATV. Jako PA lze pou\u017e\u00edt r\u016fzn\u00e9 zesilova\u010de ur\u010den\u00e9 pro Wifi.<\/p>\n\n\n\n<p>Una\u017euji tak\u00e9 o lep\u0161\u00edm LNB. Na pozemn\u00ed p\u0159ij\u00edmac\u00ed stanici  Es\u2019hail-2 pou\u017e\u00edvaj\u00ed konvertory typu <a href=\"https:\/\/wiki.batc.org.uk\/Es%27hail-2_LNBs_and_Antennaes\">Octagon Green HQ Quad OQSLO<\/a> . Je dobr\u00e9 m\u00edt verzi s 4x F konektorem. Po \u00faprav\u011b bude prvn\u00ed slou\u017eit pro extern\u00ed zdroj referen\u010dn\u00edho kmito\u010dtu 25MHz, druh\u00fd pro p\u0159\u00edjem ve vertik\u00e1ln\u00ed rovin\u011b (\u00fazkop\u00e1smov\u00fd), t\u0159et\u00ed pro p\u0159ijem DVB-S2 v horizont\u00e1ln\u00ed rovin\u011b, \u010dtvrt\u00fd bude z\u00e1lo\u017en\u00ed. LNB se s t\u0159emi &#8222;v\u00fdfuky&#8220; stejn\u011b ned\u011blaj\u00ed:)<br><\/p>\n\n\n\n<p>Pokra\u010dov\u00e1n\u00ed&#8230;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Projekt Es\u2019Hail 2 sleduji ji\u017e dlouhou dobu. Jedn\u00e1 se o prvn\u00ed geostacion\u00e1rn\u00ed transpond\u00e9r ur\u010den\u00fd \u010dist\u011b radioamar\u00e9r\u016fm, kter\u00fd byl 15. prosince 2018 v 20:46 UTC vypu\u0161t\u011bn z Kennedyho vesm\u00edrn\u00e9ho st\u0159ediska (rampa LC-39A). Nyn\u00ed je ji\u017e na geostacion\u00e1rn\u00ed orbit\u011b, p\u0159esn\u011b na 25.5\u00b0 <a class=\"more-link\" href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/2019\/03\/poslech-geostacionarnho-transponderu-eshail-2\/\">Pokra\u010duj ve \u010dten\u00ed \u2192<\/a><\/p>\n","protected":false},"author":1,"featured_media":3302,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[751,853,854,855],"class_list":["post-3165","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ham","tag-eshail-2","tag-ham-satelite","tag-ham-transponder","tag-radioamatersky-satelit"],"_links":{"self":[{"href":"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-json\/wp\/v2\/posts\/3165","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-json\/wp\/v2\/comments?post=3165"}],"version-history":[{"count":77,"href":"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-json\/wp\/v2\/posts\/3165\/revisions"}],"predecessor-version":[{"id":3925,"href":"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-json\/wp\/v2\/posts\/3165\/revisions\/3925"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-json\/wp\/v2\/media\/3302"}],"wp:attachment":[{"href":"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-json\/wp\/v2\/media?parent=3165"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-json\/wp\/v2\/categories?post=3165"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-json\/wp\/v2\/tags?post=3165"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}