{"id":3924,"date":"2020-04-15T18:23:19","date_gmt":"2020-04-15T17:23:19","guid":{"rendered":"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/?p=3924"},"modified":"2023-01-18T19:44:43","modified_gmt":"2023-01-18T18:44:43","slug":"datv-nb-provoz-pres-druzici-eshail-2","status":"publish","type":"post","link":"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/2020\/04\/datv-nb-provoz-pres-druzici-eshail-2\/","title":{"rendered":"DATV + NB provoz p\u0159es dru\u017eici EsHail-2"},"content":{"rendered":"\n<p>V tomto \u010dl\u00e1nku bych r\u00e1d popsal posledn\u00ed aktualizace a zm\u011bny v m\u00e9m \u00fazkop\u00e1smov\u00e9m a DATV vybaven\u00ed pro komunikaci pomoc\u00ed geostacion\u00e1rn\u00ed dru\u017eici EsHail-2. <a href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/2019\/04\/up-convertor-pro-eshail-2\/\">V p\u0159edchoz\u00edm \u010dl\u00e1nku<\/a> jsem popisoval vybaven\u00ed pro \u00fazkop\u00e1smov\u00e9 provozy. Pou\u017e\u00edval jsem up-convertor s WiFi boosterem o v\u00fdkonu 4W. Pro pokusy s DATV jsem pot\u0159eboval jin\u00fd zdroj sign\u00e1lu a rovn\u011b\u017e tak\u00e9 nav\u00fd\u0161it vys\u00edlac\u00ed v\u00fdkon. O t\u011bchto zm\u011bn\u00e1ch a vylep\u0161en\u00edch je n\u00e1sleduj\u00edc\u00ed \u010dl\u00e1nek.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"prechod-z-up-convertoru-bu500-na-limesdr-mini\">P\u0159echod z up-convertoru BU500 na LimeSDR mini<\/h4>\n\n\n\n<p>Jedn\u00edm z nejv\u011bt\u0161\u00edch funk\u010dn\u00edch rozd\u00edl\u016f je v\u00fdm\u011bna up-convertoru BU-500 za SDR vys\u00edla\u010d. Zde jsem vyb\u00edral mezi dv\u011bma SDR transceivery nej\u010dast\u011bji pou\u017e\u00edvan\u00fdmi, konkr\u00e9tn\u011b <strong>ADALM Pluto<\/strong> a <strong>LimeSDR<\/strong>. <br><strong>ADALM Pluto<\/strong> je levn\u011bj\u0161\u00ed variantou, z m\u00e9ho pohledu m\u00e1 v\u0161ak nedokonalosti, kv\u016fli kter\u00fdm jsem si jej nakonec nezvolil. <br><span class=\"has-inline-color has-vivid-red-color\">Nev\u00fdhody \u010derven\u011b<\/span> \/ <span class=\"has-inline-color has-vivid-green-cyan-color\">v\u00fdhody zelen\u011b<\/span><\/p>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<ul class=\"wp-block-list\">\n<li><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-red-color\">Nestabiln\u00ed LO lok\u00e1ln\u00ed oscil\u00e1tor, kter\u00fd je t\u0159eba vym\u011bnit. <\/mark><\/li>\n\n\n\n<li><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-red-color\">USB 2.0<\/mark><\/li>\n\n\n\n<li><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-green-cyan-color\">20MHz \u0161\u00ed\u0159ka p\u00e1sma<\/mark><\/li>\n\n\n\n<li><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-green-cyan-color\">12-bit ADC\/DAC<\/mark><\/li>\n\n\n\n<li><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-green-cyan-color\">Podporuje p\u0159\u00edm\u00e9 ovl\u00e1d\u00e1n\u00ed ze &#8222;studiov\u00fdch&#8220; program\u016f pro zpracov\u00e1n\u00ed videa a lze jej ovl\u00e1dat p\u0159\u00edmo z PC jako streamovac\u00ed za\u0159\u00edzen\u00ed.<\/mark><\/li>\n\n\n\n<li><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-green-cyan-color\">S upraven\u00fdm FW lze Pluto pou\u017e\u00edvat jako SNA analyz\u00e1tor<\/mark><\/li>\n\n\n\n<li><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-green-cyan-color\">Cena ~5000,-k\u010d<\/mark><\/li>\n<\/ul>\n\n\n\n<p>Lime SDR Mini je sice o n\u011bco dra\u017e\u0161\u00ed, m\u00e1 v\u0161ak \u0159adu dal\u0161\u00edch vyu\u017eit\u00ed pro experimenty s r\u00e1diov\u00fdm spektrem.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-green-cyan-color\">Stabiln\u00ed TCXO Rakon RTX5032A @40.00MHz \/ 1ppm<\/mark><\/li>\n\n\n\n<li><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-green-cyan-color\">Vstup (pr\u016fchoz\u00ed) pro extern\u00ed referen\u010dn\u00ed kmito\u010det 10MHz<\/mark><\/li>\n\n\n\n<li><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-green-cyan-color\">USB 3.0<\/mark><\/li>\n\n\n\n<li><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-green-cyan-color\">V\u00fdkon cca +8dBm \/ 2400MHz<\/mark><\/li>\n\n\n\n<li><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-green-cyan-color\">30,72MHz \u0161\u00ed\u0159ka p\u00e1sma<\/mark><\/li>\n\n\n\n<li><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-green-cyan-color\">12-bit ADC\/DAC<\/mark><\/li>\n\n\n\n<li><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-green-cyan-color\">Mo\u017enost dal\u0161\u00edch experiment\u016f (FakeGPS, NMT, LTE vys\u00edla\u010de)<\/mark><\/li>\n\n\n\n<li><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-green-cyan-color\">SNA analyz\u00e1tor<\/mark><\/li>\n\n\n\n<li><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-green-cyan-color\">Podpora <a href=\"https:\/\/wiki.batc.org.uk\/Portsdown_2020\">Portsdown DATV<\/a><\/mark><\/li>\n\n\n\n<li><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-green-cyan-color\">Programovateln\u00e9 GPIO piny<\/mark><\/li>\n\n\n\n<li><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-green-cyan-color\">Rozm\u011bry 69x31mm<\/mark><\/li>\n\n\n\n<li><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-red-color\">Cena ~ 5800,-k\u010d<\/mark><\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-2 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-medium\"><a href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/LimeSDR_vrch.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"225\" data-id=\"3901\" src=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/LimeSDR_vrch-300x225.jpg\" alt=\"\" class=\"wp-image-3901\" srcset=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/LimeSDR_vrch-300x225.jpg 300w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/LimeSDR_vrch-768x576.jpg 768w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/LimeSDR_vrch-1536x1152.jpg 1536w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/LimeSDR_vrch-2048x1536.jpg 2048w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/figure>\n\n\n\n<figure class=\"wp-block-image size-medium\"><a href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/LimeSDR_spodek.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"225\" data-id=\"3899\" src=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/LimeSDR_spodek-300x225.jpg\" alt=\"\" class=\"wp-image-3899\" srcset=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/LimeSDR_spodek-300x225.jpg 300w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/LimeSDR_spodek-768x576.jpg 768w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/LimeSDR_spodek-1536x1152.jpg 1536w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/LimeSDR_spodek-2048x1536.jpg 2048w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/figure>\n\n\n\n<figure class=\"wp-block-image size-medium\"><a href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/LimeSDR_det2.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"225\" data-id=\"3898\" src=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/LimeSDR_det2-300x225.jpg\" alt=\"\" class=\"wp-image-3898\" srcset=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/LimeSDR_det2-300x225.jpg 300w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/LimeSDR_det2-768x576.jpg 768w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/LimeSDR_det2-1536x1152.jpg 1536w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/LimeSDR_det2-2048x1536.jpg 2048w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/figure>\n<\/figure>\n\n\n\n<p>LimeSDR mini se dod\u00e1v\u00e1 standardn\u011b bez krabi\u010dky, ta jde ov\u0161em snadno vytisknout na 3D tisk\u00e1rn\u011b nebo tak\u00e9 koupit v duralov\u00e9m proveden\u00ed, av\u0161ak za cenu dosahuj\u00edc\u00ed pomalu dal\u0161\u00ed za\u0159\u00edzen\u00ed. Pokud se LimeSDR nechlad\u00ed, je jeho provozn\u00ed teplota p\u0159i zat\u00ed\u017een\u00ed a\u017e ~65\u00b0C. Necht\u011bl jsem jej takto tepeln\u011b nam\u00e1hat, proto jsou na \u010dipech nalepeny chladi\u010de. Transceiver <a href=\"https:\/\/limemicro.com\/technology\/lms7002m\/\">LMS7002,<\/a> kter\u00fd je pod st\u00edn\u00edc\u00edm plechem, jsem dopnil o teplovodnou gumu, aby se do krytu i chladil. Tisknut\u00e1 krabi\u010dka m\u00e1 na sob\u011b upevn\u011bn\u00fd 30mm ventil\u00e1tor, kter\u00fd dr\u017e\u00ed teplotu i p\u0159i pln\u00e9m vyt\u00ed\u017een\u00ed okolo 35\u00b0C.<\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-3 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-medium\"><a href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/LimeSDR_det1.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"225\" data-id=\"3897\" src=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/LimeSDR_det1-300x225.jpg\" alt=\"\" class=\"wp-image-3897\" srcset=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/LimeSDR_det1-300x225.jpg 300w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/LimeSDR_det1-768x576.jpg 768w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/LimeSDR_det1-1536x1152.jpg 1536w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/LimeSDR_det1-2048x1536.jpg 2048w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><figcaption class=\"wp-element-caption\">LMS7002M<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-medium\"><a href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/LimeSDR_teplovodna_guma2.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"225\" data-id=\"3900\" src=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/LimeSDR_teplovodna_guma2-300x225.jpg\" alt=\"\" class=\"wp-image-3900\" srcset=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/LimeSDR_teplovodna_guma2-300x225.jpg 300w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/LimeSDR_teplovodna_guma2-768x576.jpg 768w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/LimeSDR_teplovodna_guma2-1536x1152.jpg 1536w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/LimeSDR_teplovodna_guma2-2048x1536.jpg 2048w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><figcaption class=\"wp-element-caption\">Teplovodn\u00e1 guma<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-medium\"><a href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/LimeSDR_open_case.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"225\" data-id=\"3994\" src=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/LimeSDR_open_case-300x225.jpg\" alt=\"\" class=\"wp-image-3994\" srcset=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/LimeSDR_open_case-300x225.jpg 300w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/LimeSDR_open_case-768x576.jpg 768w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/LimeSDR_open_case-1536x1152.jpg 1536w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/LimeSDR_open_case-2048x1536.jpg 2048w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><figcaption class=\"wp-element-caption\">P\u0159ed slo\u017een\u00edm<\/figcaption><\/figure>\n<\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"uzkopasmove-provozy-a-sdr-console\">\u00dazkop\u00e1smov\u00e9 provozy a SDR console<\/h4>\n\n\n\n<p>Pro \u00fazkop\u00e1smov\u00e9 provozy pou\u017e\u00edv\u00e1m program SDRconsole a mus\u00edm p\u0159iznat, \u017ee je velmi dob\u0159e vybaven. Poskytuje \u0159adu funkcionalit vyu\u017eiteln\u00fdch pro poslech jak KV, VKV, tak i pro dru\u017eicov\u00fd provoz, konkr\u00e9tn\u011b pak pro EsHail2.<br>Pro poslech downlinku na 3cm pou\u017e\u00edv\u00e1m klasick\u00e9 satelitn\u00ed LNB bez \u00faprav. Tento konvertor pou\u017e\u00edv\u00e1 jako lok\u00e1ln\u00ed oscil\u00e1tor klasick\u00fd krystal, tak\u017ee m\u00e1 zna\u010dnou kmito\u010dtovou nestabilitu. Na\u0161t\u011bst\u00ed je v SDRconsoli mo\u017enost zav\u011bsit p\u0159ij\u00edma\u010d (i vys\u00edla\u010d) na &#8222;st\u0159edn\u00ed&#8220; datov\u00fd maj\u00e1k, jeho\u017e kmito\u010det je dob\u0159e zn\u00e1m, a pou\u017e\u00edt ho jako referenci. Console kmito\u010det sama dola\u010fuje a cel\u00e9 za\u0159\u00edzen\u00ed je pak velmi stabiln\u00ed.<\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-4 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/SDR_cpnsole.png\"><img loading=\"lazy\" decoding=\"async\" width=\"1917\" height=\"1037\" data-id=\"4030\" src=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/SDR_cpnsole.png\" alt=\"\" class=\"wp-image-4030\" srcset=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/SDR_cpnsole.png 1917w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/SDR_cpnsole-300x162.png 300w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/SDR_cpnsole-768x415.png 768w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/SDR_cpnsole-1536x831.png 1536w\" sizes=\"auto, (max-width: 1917px) 100vw, 1917px\" \/><\/a><\/figure>\n<\/figure>\n\n\n\n<p>Pro \u00faplnost uvedu seznam mnou testovan\u00fdch satelitn\u00edch LNB pou\u017e\u00edvaj\u00edc\u00edch kmito\u010dtovou synt\u00e9zu.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Amiko L-107<\/li>\n\n\n\n<li>Tesla TL-100<\/li>\n\n\n\n<li>Mascom MSC01-UHD<\/li>\n\n\n\n<li>Zircon L-101<\/li>\n<\/ul>\n\n\n\n<p>Jako nejlep\u0161\u00ed se mi pak jev\u00ed Amico L-107 a Mascom MSC01 UHD<\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-5 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-medium\"><a href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/DSCN3834.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"225\" data-id=\"3194\" src=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/DSCN3834-300x225.jpg\" alt=\"\" class=\"wp-image-3194\" srcset=\"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, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/DSCN3834-1600x1200.jpg 1600w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><figcaption class=\"wp-element-caption\">Amiko L-107<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-medium\"><a href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/DSCN3826.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"225\" data-id=\"3192\" src=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/DSCN3826-300x225.jpg\" alt=\"\" class=\"wp-image-3192\" srcset=\"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, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/DSCN3826-1600x1200.jpg 1600w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><figcaption class=\"wp-element-caption\">Amiko L-107<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-medium\"><a href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/DSCN3831.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"225\" data-id=\"3193\" src=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/DSCN3831-300x225.jpg\" alt=\"\" class=\"wp-image-3193\" srcset=\"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, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2019\/03\/DSCN3831-1600x1200.jpg 1600w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><figcaption class=\"wp-element-caption\">Amiko L-107<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-medium\"><a href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/LNB_MCS01UHD_1.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"225\" data-id=\"3902\" src=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/LNB_MCS01UHD_1-300x225.jpg\" alt=\"\" class=\"wp-image-3902\" srcset=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/LNB_MCS01UHD_1-300x225.jpg 300w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/LNB_MCS01UHD_1-768x576.jpg 768w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/LNB_MCS01UHD_1-1536x1152.jpg 1536w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/LNB_MCS01UHD_1-2048x1536.jpg 2048w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><figcaption class=\"wp-element-caption\">Mascom MSC01 UHD<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-medium\"><a href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/LNB_MCS01UHD_3.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"225\" data-id=\"3904\" src=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/LNB_MCS01UHD_3-300x225.jpg\" alt=\"\" class=\"wp-image-3904\" srcset=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/LNB_MCS01UHD_3-300x225.jpg 300w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/LNB_MCS01UHD_3-768x576.jpg 768w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/LNB_MCS01UHD_3-1536x1152.jpg 1536w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/LNB_MCS01UHD_3-2048x1536.jpg 2048w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><figcaption class=\"wp-element-caption\">Mascom MSC01 UHD<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-medium\"><a href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/LNB_MCS01UHD_inside.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"225\" data-id=\"3905\" src=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/LNB_MCS01UHD_inside-300x225.jpg\" alt=\"\" class=\"wp-image-3905\" srcset=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/LNB_MCS01UHD_inside-300x225.jpg 300w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/LNB_MCS01UHD_inside-768x576.jpg 768w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/LNB_MCS01UHD_inside-1536x1152.jpg 1536w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/LNB_MCS01UHD_inside-2048x1536.jpg 2048w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><figcaption class=\"wp-element-caption\">Mascom MSC01 UHD<\/figcaption><\/figure>\n<\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"datv-provoz-prijem\">DATV provoz &#8211; P\u0159\u00edjem<\/h4>\n\n\n\n<p>Pro p\u0159\u00edjem amat\u00e9rsk\u00e9 televize v sou\u010dasn\u00e9 dob\u011b pou\u017e\u00edv\u00e1m program <a href=\"https:\/\/forum.amsat-dl.org\/index.php?thread\/101-software-dvb-s-demodulator\/\">DVB GUI<\/a>. Sign\u00e1l z LNB, kter\u00fd je um\u00edst\u011bn v 85cm offset parabole, jde do LimeSDR (AirSPY), odtud pak ji\u017e do PC, kde jej dek\u00f3duje DVB GUI SW.<br>Pro lep\u0161\u00ed orientaci o provozu na DATV spektru lze pou\u017e\u00edt <a href=\"https:\/\/eshail.batc.org.uk\/wb\/\">WebSDR p\u0159ij\u00edma\u010d<\/a>.<\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-6 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/DVB_GUI_8PSK.png\"><img loading=\"lazy\" decoding=\"async\" width=\"1919\" height=\"1040\" data-id=\"4011\" src=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/DVB_GUI_8PSK.png\" alt=\"\" class=\"wp-image-4011\" srcset=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/DVB_GUI_8PSK.png 1919w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/DVB_GUI_8PSK-300x163.png 300w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/DVB_GUI_8PSK-768x416.png 768w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/DVB_GUI_8PSK-1536x832.png 1536w\" sizes=\"auto, (max-width: 1919px) 100vw, 1919px\" \/><\/a><figcaption class=\"wp-element-caption\">DVB GUI<\/figcaption><\/figure>\n<\/figure>\n\n\n\n<p>Takto se daj\u00ed snadno p\u0159\u00edj\u00edmat pouze siln\u00e9 sign\u00e1ly. Probl\u00e9m je ale v SDR p\u0159ij\u00edma\u010di, kter\u00fd m\u00e1 v m\u00e9m p\u0159\u00edpad\u011b jen 12bit rozli\u0161en\u00ed (u RTL-SDR pouze 7bit) a odstup sign\u00e1l\/\u0161um mus\u00ed b\u00fdt relatovn\u011b velk\u00fd. <br>Jako dal\u0161\u00ed upgrade chci RX vym\u011bnit za <a href=\"https:\/\/boutique.r-e-f.org\/27-kits-et-composants\">MinitiounerPro version 2,<\/a> kter\u00fd pou\u017e\u00edv\u00e1 komer\u010dn\u00ed satelitn\u00ed p\u0159ij\u00edma\u010d na HAM &#8222;podvozku&#8220;:)<br>Parametry takov\u00e9ho RX jsou samoz\u0159ejm\u011b \u0159\u00e1dov\u011b lep\u0161\u00ed.<\/p>\n\n\n\n<p>Za asistenci p\u0159i testech pat\u0159\u00ed velk\u00fd d\u00edk <strong>\u0160\u0165evovi OM0MS<\/strong>, jeho p\u0159ij\u00edmac\u00ed strana vypadala n\u011bjak takto:)<br><\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-7 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/HAZ_OM0MS.png\"><img loading=\"lazy\" decoding=\"async\" width=\"924\" height=\"654\" data-id=\"4010\" src=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/HAZ_OM0MS.png\" alt=\"\" class=\"wp-image-4010\" srcset=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/HAZ_OM0MS.png 924w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/HAZ_OM0MS-300x212.png 300w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/HAZ_OM0MS-768x544.png 768w\" sizes=\"auto, (max-width: 924px) 100vw, 924px\" \/><\/a><\/figure>\n<\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"datv-provoz-vysilani\">DATV provoz &#8211; Vys\u00edl\u00e1n\u00ed<\/h4>\n\n\n\n<p>Po\u0159\u00edzen\u00edm LimeSDR mini samoz\u0159ejm\u011b zapo\u010daly i m\u00e9 experimenty s DATV (digit\u00e1ln\u00ed amat\u00e9rsk\u00e1 televize). Nejd\u0159\u00edve jsem sign\u00e1l generoval pomoc\u00ed SW <a href=\"https:\/\/www.datv-express.com\/\">DATV express<\/a>. Tento program funguje dob\u0159e, lze v n\u011bm nastavit v\u0161echny pot\u0159ebn\u00e9 parametry, podporuje dokonce i videokodek H.265. Mus\u00edm ale p\u0159iznat, \u017ee jsem pon\u011bkud z\u00e1pasil se z\u00e1sobov\u00e1n\u00edm DATV express video streamem. Program sice podporuje webkameru, MPEG soubor nebo vstup streamu ze studiov\u00fdch streamovac\u00edch SW, jako je t\u0159eba <a href=\"https:\/\/www.vmix.com\/\">Vmix<\/a> nebo <a href=\"https:\/\/obsproject.com\/\">OBS<\/a>. Byl v\u0161ak velk\u00fd probl\u00e9m v\u0161e nastavit tak, aby se datov\u00fd tok stihl prost\u0159ednictv\u00edm DATV kan\u00e1lu odvys\u00edlat a nep\u0159eplnil se n\u011bkde buffer. Dal\u0161\u00ed, z m\u00e9ho pohledu, z\u00e1pornou vlastnost\u00ed je nutnost b\u011bhu relativn\u011b siln\u00e9ho PC.<\/p>\n\n\n\n<p>Proto jsem vyzkou\u0161el alternativn\u00ed \u0159e\u0161en\u00ed pro generov\u00e1n\u00ed DATV streamu &#8211; <a href=\"https:\/\/wiki.batc.org.uk\/The_Portsdown_Transmitter\">Portsdown<\/a> project. Jedn\u00e1 se o <a href=\"https:\/\/github.com\/BritishAmateurTelevisionClub\/portsdown-buster\">SW aplikaci<\/a>, kter\u00e1 b\u011b\u017e\u00ed na Raspberry Pi3B(3B+). Ovl\u00e1d\u00e1na je pomoc\u00ed <a href=\"https:\/\/wiki.batc.org.uk\/Console_mode\">SSH konzole<\/a> nebo elegantn\u011bji prost\u0159ednictv\u00edm dotykov\u00e9ho displeje. Odpad\u00e1 tedy pot\u0159eba be\u017e\u00edc\u00edho PC. K raspberry je pot\u0159eba p\u0159ipojit LimeSDR, displej, kameru a extern\u00ed zvukovou kartu.<br>Podporovan\u00fd HW je <a href=\"https:\/\/wiki.batc.org.uk\/Portsdown_hardware\">vypsan\u00fd zde<\/a>, <strong>je dobr\u00e9 jej dodr\u017eet<\/strong>. Zkou\u0161el jsem nap\u0159\u00edklad jin\u00e9 displeje (Waveshare 3.5 inch Type B, Adafruit PiTFT ) a probl\u00e9my s t\u00edm spojen\u00e9 v\u00e1\u017en\u011b nestoj\u00ed za to:). PiTFT m\u00e1 nap\u0159\u00edklad dotykovou vrstvu oto\u010denou o 180\u00b0, <a href=\"https:\/\/cdn-learn.adafruit.com\/downloads\/pdf\/adafruit-pitft-3-dot-5-touch-screen-for-raspberry-pi.pdf\">co\u017e jde sice upravit<\/a>, ale n\u011bjakou dal\u0161\u00ed chybou se nezobrazuj\u00ed ur\u010dit\u00e9 \u010d\u00e1sti menu. Waveshare type B funguje pro ovl\u00e1d\u00e1n\u00ed dob\u0159e, pod\u00e1v\u00e1 v\u0161ak inverzn\u00ed barvy R\/B.<br>Jako kameru pou\u017e\u00edv\u00e1m Raspberry Pi <a href=\"https:\/\/www.alza.cz\/raspberry-pi-camera-module-v2-d4256972.htm?kampan=adw4_prislusenstvi-pro-it-tv_pla_all_prislusenstvi-css_rozsirujici-karty_c_9062896__RK100c3&amp;gclid=Cj0KCQjw4dr0BRCxARIsAKUNjWSbgRLlrgGnBeyagkiO1LNqkarW_UReUnm_wi-6pJkVms_WkjePEAEaAgO7EALw_wcB\">Camera<\/a> <a href=\"https:\/\/rpishop.cz\/kamery\/329-raspberry-pi-kamera-modul-v2.html\">module V2<\/a>.<\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-8 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-medium\"><a href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/DSCN4902.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"225\" data-id=\"3996\" src=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/DSCN4902-300x225.jpg\" alt=\"\" class=\"wp-image-3996\" srcset=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/DSCN4902-300x225.jpg 300w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/DSCN4902-768x576.jpg 768w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/DSCN4902-1536x1152.jpg 1536w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/DSCN4902-2048x1536.jpg 2048w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/figure>\n\n\n\n<figure class=\"wp-block-image size-medium\"><a href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/RPi_Disp.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"225\" data-id=\"3937\" src=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/RPi_Disp-300x225.jpg\" alt=\"\" class=\"wp-image-3937\" srcset=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/RPi_Disp-300x225.jpg 300w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/RPi_Disp-768x576.jpg 768w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/RPi_Disp-1536x1152.jpg 1536w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/RPi_Disp-2048x1536.jpg 2048w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/figure>\n\n\n\n<figure class=\"wp-block-image size-medium\"><a href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/Displeje.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"225\" data-id=\"3936\" src=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/Displeje-300x225.jpg\" alt=\"\" class=\"wp-image-3936\" srcset=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/Displeje-300x225.jpg 300w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/Displeje-768x576.jpg 768w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/Displeje-1536x1152.jpg 1536w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/Displeje-2048x1536.jpg 2048w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><figcaption class=\"wp-element-caption\">Testovan\u00e9 displeje<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-medium\"><a href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/Cam.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"225\" data-id=\"3933\" src=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/Cam-300x225.jpg\" alt=\"\" class=\"wp-image-3933\" srcset=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/Cam-300x225.jpg 300w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/Cam-768x576.jpg 768w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/Cam-1536x1152.jpg 1536w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/Cam-2048x1536.jpg 2048w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/figure>\n\n\n\n<figure class=\"wp-block-image size-medium\"><a href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/Cam_housing.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"225\" data-id=\"3934\" src=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/Cam_housing-300x225.jpg\" alt=\"\" class=\"wp-image-3934\" srcset=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/Cam_housing-300x225.jpg 300w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/Cam_housing-768x576.jpg 768w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/Cam_housing-1536x1152.jpg 1536w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/Cam_housing-2048x1536.jpg 2048w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><figcaption class=\"wp-element-caption\">Tisknut\u00fd kryt<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-medium\"><a href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/Cam2.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"225\" data-id=\"3935\" src=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/Cam2-300x225.jpg\" alt=\"\" class=\"wp-image-3935\" srcset=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/Cam2-300x225.jpg 300w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/Cam2-768x576.jpg 768w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/Cam2-1536x1152.jpg 1536w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/Cam2-2048x1536.jpg 2048w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/figure>\n\n\n\n<figure class=\"wp-block-image size-medium\"><a href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/Portsdown_display.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"225\" data-id=\"3991\" src=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/Portsdown_display-300x225.jpg\" alt=\"\" class=\"wp-image-3991\" srcset=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/Portsdown_display-300x225.jpg 300w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/Portsdown_display-768x576.jpg 768w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/Portsdown_display-1536x1152.jpg 1536w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/Portsdown_display-2048x1536.jpg 2048w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><figcaption class=\"wp-element-caption\">Portsdown<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-medium\"><a href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/Portsdown_sys.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"225\" data-id=\"3990\" src=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/Portsdown_sys-300x225.jpg\" alt=\"\" class=\"wp-image-3990\" srcset=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/Portsdown_sys-300x225.jpg 300w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/Portsdown_sys-768x576.jpg 768w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/Portsdown_sys-1536x1152.jpg 1536w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/Portsdown_sys-2048x1536.jpg 2048w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/figure>\n<\/figure>\n\n\n\n<p>Portsdown DATV sw funguje velmi dob\u0159e, je optimalizovan\u00fd pro pou\u017eit\u00fd HW, nemus\u00edm \u0159e\u0161it p\u0159et\u00e9kaj\u00edc\u00ed buttery&#8230;<br>V\u00fdpis kli\u010dov\u00fdch vlastnost\u00ed je zde:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>B\u011bz\u00edc\u00ed na Raspberry Pi3B (3B+)<\/li>\n\n\n\n<li>Podpora <a href=\"https:\/\/www.waveshare.com\/wiki\/3.5inch_RPi_LCD_(A)\">3,5<\/a> \/ <a href=\"https:\/\/www.raspberrypi.org\/products\/raspberry-pi-touch-display\/\">7&#8243;<\/a> dotykov\u00fdch displej\u016f<\/li>\n\n\n\n<li>Podpora <a href=\"https:\/\/limemicro.com\/products\/boards\/limesdr-mini\/\">Lime SDR<\/a> \/ DATVexpress HW<\/li>\n\n\n\n<li>Podpora <a href=\"https:\/\/rpishop.cz\/kamery\/329-raspberry-pi-kamera-modul-v2.html\">Raspberry Pi kamery<\/a> (nebo <a href=\"https:\/\/www.logitech.com\/en-us\/product\/hd-pro-webcam-c920\">C920 WebCam<\/a>)<\/li>\n\n\n\n<li>Podpora extern\u00edch zvukov\u00fdch karet pro vstup audia<\/li>\n\n\n\n<li>Podpora Easy Cap donglu pro vstup analog videa<\/li>\n\n\n\n<li>Existuj\u00edc\u00ed p\u0159\u00eddavn\u00fd HW (Atenu\u00e1tory, RF p\u0159ep\u00edna\u010de)<\/li>\n\n\n\n<li>Kmito\u010dtov\u00fd rozsah 10MHz &#8211; 3800MHz<\/li>\n\n\n\n<li>Standardy DVB-S, DVB-S2<\/li>\n\n\n\n<li>Podporovan\u00e9 modulace (QPSK, 8PSK, 16APSK, 32APSK)<\/li>\n\n\n\n<li>Samplovac\u00ed kmito\u010dty 35kS, 66kS, 125kS, 250kS, 333kS, 500kS, 1MS, 2MS, 4MS<\/li>\n\n\n\n<li>Pln\u011b nastaviteln\u00fd <a href=\"https:\/\/en.wikipedia.org\/wiki\/Forward_error_correction\">FEC<\/a><\/li>\n\n\n\n<li>Mo\u017enost vys\u00edlat stream ze souboru, kamery, monoskop, logo&#8230;<\/li>\n<\/ul>\n\n\n\n<p><\/p>\n<\/div><\/div>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"pa-nokia-siemens-upravy-merici-port\">PA Nokia Siemens &#8211; \u00fapravy, m\u011b\u0159\u00edc\u00ed port<\/h4>\n\n\n\n<p>Jako koncov\u00fd stupe\u0148 pou\u017e\u00edv\u00e1m vy\u0159azen\u00fd WCDMA PA v\u00fdroby Nokia\/Siemens, kter\u00fd jsem <a href=\"https:\/\/www.ebay.com\/itm\/2-3GHz-RF-linear-amplifier-13cm-band-2x-BLD6G22L-150BN-2-ESHail2\/202960438809?hash=item2f41628619:g:WHcAAOSw1Rpdzn-A\">sehnal na ebay<\/a>. <br>Tento koncov\u00fd stupe\u0148 pou\u017e\u00edv\u00e1 dvojici tranzistor\u016f <strong>BLD6G22L-150BN\/2<\/strong> a je schopen d\u00e1vat a\u017e 100W v p\u00e1smu 2400MHz. PA p\u0159ijde v neupraven\u00e9 podob\u011b, tedy je pro p\u00e1smo 2100MHz a pro vyu\u017eit\u00ed v amat\u00e9rsk\u00e9m bandu (2400MHz) je pot\u0159eba jej trochu upravit, co\u017e je vid\u011bt na n\u00e1sleduj\u00edc\u00edch fotografi\u00edch.<\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-9 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-medium\"><a href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/PA_celek_orig.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"225\" data-id=\"3906\" src=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/PA_celek_orig-300x225.jpg\" alt=\"\" class=\"wp-image-3906\" srcset=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/PA_celek_orig-300x225.jpg 300w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/PA_celek_orig-768x576.jpg 768w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/PA_celek_orig-1536x1152.jpg 1536w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/PA_celek_orig-2048x1536.jpg 2048w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><figcaption class=\"wp-element-caption\">Vrchn\u00ed pohled<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-medium\"><a href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/PA_spodek.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"225\" data-id=\"3911\" src=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/PA_spodek-300x225.jpg\" alt=\"\" class=\"wp-image-3911\" srcset=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/PA_spodek-300x225.jpg 300w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/PA_spodek-768x576.jpg 768w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/PA_spodek-1536x1152.jpg 1536w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/PA_spodek-2048x1536.jpg 2048w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><figcaption class=\"wp-element-caption\">Spodn\u00ed strana<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-medium\"><a href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/PA_det_1.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"225\" data-id=\"3908\" src=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/PA_det_1-300x225.jpg\" alt=\"\" class=\"wp-image-3908\" srcset=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/PA_det_1-300x225.jpg 300w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/PA_det_1-768x576.jpg 768w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/PA_det_1-1536x1152.jpg 1536w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/PA_det_1-2048x1536.jpg 2048w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><figcaption class=\"wp-element-caption\">Detail vstupu<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-medium\"><a href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/PS_uprava_det1.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"225\" data-id=\"3915\" src=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/PS_uprava_det1-300x225.jpg\" alt=\"\" class=\"wp-image-3915\" srcset=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/PS_uprava_det1-300x225.jpg 300w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/PS_uprava_det1-768x576.jpg 768w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/PS_uprava_det1-1536x1152.jpg 1536w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/PS_uprava_det1-2048x1536.jpg 2048w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><figcaption class=\"wp-element-caption\">\u00daprava 1<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-medium\"><a href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/PS_uprava_det2.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"225\" data-id=\"3916\" src=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/PS_uprava_det2-300x225.jpg\" alt=\"\" class=\"wp-image-3916\" srcset=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/PS_uprava_det2-300x225.jpg 300w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/PS_uprava_det2-768x576.jpg 768w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/PS_uprava_det2-1536x1152.jpg 1536w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/PS_uprava_det2-2048x1536.jpg 2048w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><figcaption class=\"wp-element-caption\">\u00daprava 2<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-medium\"><a href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/PS_uprava_det3.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"225\" data-id=\"3917\" src=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/PS_uprava_det3-300x225.jpg\" alt=\"\" class=\"wp-image-3917\" srcset=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/PS_uprava_det3-300x225.jpg 300w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/PS_uprava_det3-768x576.jpg 768w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/PS_uprava_det3-1536x1152.jpg 1536w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/PS_uprava_det3-2048x1536.jpg 2048w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><figcaption class=\"wp-element-caption\">\u00daprava 3<\/figcaption><\/figure>\n<figcaption class=\"blocks-gallery-caption wp-element-caption\"><br><\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-10 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/PA_celek_popsano.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"2304\" height=\"1728\" data-id=\"3907\" src=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/PA_celek_popsano.jpg\" alt=\"\" class=\"wp-image-3907\" srcset=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/PA_celek_popsano.jpg 2304w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/PA_celek_popsano-300x225.jpg 300w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/PA_celek_popsano-768x576.jpg 768w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/PA_celek_popsano-1536x1152.jpg 1536w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/PA_celek_popsano-2048x1536.jpg 2048w\" sizes=\"auto, (max-width: 2304px) 100vw, 2304px\" \/><\/a><\/figure>\n<\/figure>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-11 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/PA.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"2304\" height=\"1728\" data-id=\"3993\" src=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/PA.jpg\" alt=\"\" class=\"wp-image-3993\" srcset=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/PA.jpg 2304w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/PA-300x225.jpg 300w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/PA-768x576.jpg 768w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/PA-1536x1152.jpg 1536w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/PA-2048x1536.jpg 2048w\" sizes=\"auto, (max-width: 2304px) 100vw, 2304px\" \/><\/a><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/PA_det.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"2304\" height=\"1728\" data-id=\"3992\" src=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/PA_det.jpg\" alt=\"\" class=\"wp-image-3992\" srcset=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/PA_det.jpg 2304w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/PA_det-300x225.jpg 300w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/PA_det-768x576.jpg 768w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/PA_det-1536x1152.jpg 1536w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/PA_det-2048x1536.jpg 2048w\" sizes=\"auto, (max-width: 2304px) 100vw, 2304px\" \/><\/a><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/Pomocny_zdroj_montaz_1.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"2304\" height=\"1728\" data-id=\"3914\" src=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/Pomocny_zdroj_montaz_1.jpg\" alt=\"\" class=\"wp-image-3914\" srcset=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/Pomocny_zdroj_montaz_1.jpg 2304w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/Pomocny_zdroj_montaz_1-300x225.jpg 300w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/Pomocny_zdroj_montaz_1-768x576.jpg 768w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/Pomocny_zdroj_montaz_1-1536x1152.jpg 1536w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/Pomocny_zdroj_montaz_1-2048x1536.jpg 2048w\" sizes=\"auto, (max-width: 2304px) 100vw, 2304px\" \/><\/a><\/figure>\n<\/figure>\n\n\n\n<p>Na ur\u010den\u00e1 m\u00edsta mezi jednotliv\u00fdmi zesilova\u010di jsem p\u0159id\u00e1val m\u011bd\u011bn\u00e9 p\u00e1sky a sledoval zisk cel\u00e9ho \u0159et\u011bzce. V\u0161echny t\u0159i cirkul\u00e1tory jsem v PA nechal osazen\u00e9, o\u017eel\u00edm trochu vys\u00edlac\u00edho v\u00fdkonu za cenu zlep\u0161en\u00ed parametr\u016f.<br>V\u0161echny RF konektory jsem vym\u011bnil za SMA. <br>Zes\u00edlen\u00ed cel\u00e9ho PA je cca 40dB, pro pln\u00e9 vybuzen\u00ed mu posta\u010duj\u011b tedy cca +10dBm. Kmito\u010dtov\u00e1 charakteristika je vid\u011bt na n\u00e1sleduj\u00edc\u00edm obr\u00e1zku, v\u00fdkon jsem m\u011b\u0159il na monitorovac\u00edm portu kter\u00fd, m\u00e1 vazbu -40dB.<br>Ladil jsem jej na maxim\u00e1ln\u00ed zisk v p\u00e1smu 2400 &#8211; 2410MHz.<\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-12 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/PA_zisk.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"2304\" height=\"1728\" data-id=\"3913\" src=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/PA_zisk.jpg\" alt=\"\" class=\"wp-image-3913\" srcset=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/PA_zisk.jpg 2304w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/PA_zisk-300x225.jpg 300w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/PA_zisk-768x576.jpg 768w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/PA_zisk-1536x1152.jpg 1536w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/PA_zisk-2048x1536.jpg 2048w\" sizes=\"auto, (max-width: 2304px) 100vw, 2304px\" \/><\/a><figcaption class=\"wp-element-caption\">Kmito\u010dtov\u00e1 charakteristika PA &#8211; M\u011b\u0159eno na min. portu -40dB<\/figcaption><\/figure>\n<\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"blokove-schema-celeho-retezce\">Blokov\u00e9 sch\u00e9ma cel\u00e9ho \u0159et\u011bzce<\/h4>\n\n\n\n<p>Na blokov\u00e9m sch\u00e9matu vid\u00edme, jak p\u0159esn\u011b je \u0159et\u011bzec sestaven a jak\u00e9 jsou v jednotliv\u00fdch bodech \u00farovn\u011b.<\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-13 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/Schema_blokove.png\"><img loading=\"lazy\" decoding=\"async\" width=\"833\" height=\"245\" data-id=\"4026\" src=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/Schema_blokove.png\" alt=\"\" class=\"wp-image-4026\" srcset=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/Schema_blokove.png 833w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/Schema_blokove-300x88.png 300w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/Schema_blokove-768x226.png 768w\" sizes=\"auto, (max-width: 833px) 100vw, 833px\" \/><\/a><\/figure>\n<\/figure>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-14 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-medium\"><a href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/BandPass_filter.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"225\" data-id=\"3894\" src=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/BandPass_filter-300x225.jpg\" alt=\"\" class=\"wp-image-3894\" srcset=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/BandPass_filter-300x225.jpg 300w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/BandPass_filter-768x576.jpg 768w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/BandPass_filter-1536x1152.jpg 1536w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/BandPass_filter-2048x1536.jpg 2048w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><figcaption class=\"wp-element-caption\">Band-pass filtr 2400MHz<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-medium\"><a href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/BandPass_filter_inside.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"225\" data-id=\"3895\" src=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/BandPass_filter_inside-300x225.jpg\" alt=\"\" class=\"wp-image-3895\" srcset=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/BandPass_filter_inside-300x225.jpg 300w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/BandPass_filter_inside-768x576.jpg 768w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/BandPass_filter_inside-1536x1152.jpg 1536w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/BandPass_filter_inside-2048x1536.jpg 2048w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><figcaption class=\"wp-element-caption\">&#8230;obsahuje 6 rezon\u00e1tr\u016f&#8230;<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-medium\"><a href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/Driver_SPF5189.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"225\" data-id=\"3896\" src=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/Driver_SPF5189-300x225.jpg\" alt=\"\" class=\"wp-image-3896\" srcset=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/Driver_SPF5189-300x225.jpg 300w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/Driver_SPF5189-768x576.jpg 768w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/Driver_SPF5189-1536x1152.jpg 1536w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/Driver_SPF5189-2048x1536.jpg 2048w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><figcaption class=\"wp-element-caption\">Zesilova\u010d s SPF5189Z<\/figcaption><\/figure>\n<\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"energeticka-stranka-signalu-dle-sirky-pasma\">Energetick\u00e1 str\u00e1nka sign\u00e1l\u016f dle \u0161\u00ed\u0159ky p\u00e1sma<\/h4>\n\n\n\n<p>Obecn\u011b plat\u00ed, \u017ee \u010d\u00edm je \u0161\u00ed\u0159ka p\u00e1sma sign\u00e1lu u\u017e\u0161\u00ed, t\u00edm je pot\u0159ebn\u00fd v\u00fdkon vys\u00edlac\u00edho \u0159et\u011bzce (PA + ant\u00e9na) k \u00fasp\u011b\u0161n\u00e9mu p\u0159enosu\/spojen\u00ed men\u0161\u00ed.<br>Pro \u00fazkop\u00e1smov\u00e9-fonick\u00e9 provozy (SSB) posta\u010duje p\u0159i 85cm ofsetov\u00e9 parabole pohodln\u011b 1W.<br>\u010c\u00edm je ale \u0161\u00ed\u0159ka p\u00e1sma pou\u017e\u00edvan\u00e9ho provozu vy\u0161\u0161\u00ed, t\u00edm je tak\u00e9 v\u011bt\u0161\u00ed jeho energetick\u00e1 n\u00e1ro\u010dnost. Pokud si to p\u0159edstav\u00edme na plo\u0161n\u00e9m grafu, celkov\u00fd v\u00fdkon rozlo\u017een\u00fd v \u0161\u00ed\u0159ce sign\u00e1lu je sou\u010det jeho plochy. Toto je hodn\u011b patrn\u00e9 p\u0159i \u0161irokop\u00e1smov\u00fdch DATV provozech.<br>Na n\u00e1sleduj\u00edc\u00edm obr\u00e1zku vid\u00edme, jak vypadaj\u00ed sign\u00e1ly ve spektru s pou\u017eitou 85cm offset ant\u00e9nou. Nejni\u017e\u0161\u00ed amplitudu m\u00e1 sign\u00e1l s nejv\u011bt\u0161\u00ed \u0161\u00ed\u0159kou a naopak. Pro provozy s v\u011bt\u0161\u00ed \u0161\u00ed\u0159kou p\u00e1sma tedy pot\u0159ebujeme vy\u0161\u0161\u00ed vys\u00edlac\u00ed v\u00fdkony nebo ant\u00e9ny s v\u011bt\u0161\u00edm ziskem. St\u00e1le toti\u017e plat\u00ed pravidlo, \u017ee <strong>nejlep\u0161\u00ed zesilova\u010d je ant\u00e9na:)<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-15 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/Srovnani_spektra_3.png\"><img loading=\"lazy\" decoding=\"async\" width=\"650\" height=\"253\" data-id=\"3921\" src=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/Srovnani_spektra_3.png\" alt=\"\" class=\"wp-image-3921\" srcset=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/Srovnani_spektra_3.png 650w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/Srovnani_spektra_3-300x117.png 300w\" sizes=\"auto, (max-width: 650px) 100vw, 650px\" \/><\/a><figcaption class=\"wp-element-caption\">85cm offset \/ 80W<\/figcaption><\/figure>\n<\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"upgrade-anteny\">Upgrade anteny<\/h4>\n\n\n\n<p>V sou\u010dasn\u00e9 dob\u011b pou\u017e\u00edv\u00e1m dvojici 85cm ofsetov\u00fdch parabolick\u00fdch ant\u00e9n, jednu pro p\u0159\u00edjem a druhou pro vys\u00edl\u00e1n\u00ed. Bohu\u017eel, ani 100W vys\u00edlac\u00edho v\u00fdkonu mi neposta\u010duj\u011b pro &#8222;\u0161ir\u0161\u00ed&#8220; DATV provozy, proto se chyst\u00e1m na upgrade ant\u00e9ny. <br>Zisk parabolick\u00e9 ant\u00e9ny v p\u00e1smu 2400MHz, vzta\u017een k velikosti ant\u00e9ny, vypad\u00e1 asi takto:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>60cm<\/strong> parabola m\u00e1 zisk cca <strong>21,3dBi<\/strong> a \u0161\u00ed\u0159ku svazku cca <strong>23,9\u00b0<\/strong><\/li>\n\n\n\n<li><strong>85cm<\/strong> parabola m\u00e1 zisk cca<strong> 24,4dBi<\/strong> a \u0161\u00ed\u0159ku svazku cca <strong>16,9\u00b0<\/strong><\/li>\n\n\n\n<li><strong>105cm<\/strong> parabola m\u00e1 zisk cca <strong>26,2dBi<\/strong> a \u0161\u00ed\u0159ku svazku cca <strong>13,6\u00b0<\/strong><\/li>\n\n\n\n<li><strong>120cm<\/strong> parabola m\u00e1 zisk cca <strong>27,4dBi<\/strong> a \u0161\u00ed\u0159ku svazku cca <strong>11,9\u00b0<\/strong><\/li>\n\n\n\n<li><strong>160cm<\/strong> parabola m\u00e1 zisk cca <strong>29,9dBi <\/strong>a \u0161\u00ed\u0159ku svazku cca <strong>9\u00b0<\/strong><\/li>\n<\/ul>\n\n\n\n<p>Pokud tedy pou\u017e\u00edv\u00e1m 85cm parabolu, z\u00edskal bych upgradem na 120cm zisk +3dB zisku tj. 2x v\u011bt\u0161\u00ed vys\u00edlac\u00ed v\u00fdkon. <\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-16 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-medium\"><a href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/Ant.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"225\" data-id=\"3998\" src=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/Ant-300x225.jpg\" alt=\"\" class=\"wp-image-3998\" srcset=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/Ant-300x225.jpg 300w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/Ant-768x576.jpg 768w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/Ant-1536x1152.jpg 1536w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/Ant-2048x1536.jpg 2048w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/figure>\n\n\n\n<figure class=\"wp-block-image size-medium\"><a href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/TX_ant.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"225\" data-id=\"3989\" src=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/TX_ant-300x225.jpg\" alt=\"\" class=\"wp-image-3989\" srcset=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/TX_ant-300x225.jpg 300w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/TX_ant-768x576.jpg 768w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/TX_ant-1536x1152.jpg 1536w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/TX_ant-2048x1536.jpg 2048w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/figure>\n\n\n\n<figure class=\"wp-block-image size-medium\"><a href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/Feed.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"225\" data-id=\"3995\" src=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/Feed-300x225.jpg\" alt=\"\" class=\"wp-image-3995\" srcset=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/Feed-300x225.jpg 300w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/Feed-768x576.jpg 768w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/Feed-1536x1152.jpg 1536w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/04\/Feed-2048x1536.jpg 2048w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/figure>\n<\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"ozarovac\">Oza\u0159ova\u010d<\/h4>\n\n\n\n<p>Jak jsem zm\u00ednil v p\u0159edchoz\u00edch \u010dl\u00e1nc\u00edch, pou\u017e\u00edv\u00e1m patch feed od DJ7GP, nejsem si v\u0161ak jist\u00fd, jak\u00fd m\u00e1 &#8222;oza\u0159ovac\u00ed \u00fahel&#8220;. Tedy jestli a kolik energie mi jde mimo parabolu. Cht\u011bl bych zaexperimentovat s Helix oza\u0159ova\u010dem, kde se d\u00e1 \u0161t\u00edp\u00e1n\u00edm spir\u00e1ly \u00fahel dodate\u010dn\u011b snadno upravovat.<br>P\u0159ikl\u00e1d\u00e1m ilustrativn\u00ed obr\u00e1zek z lad\u011bn\u00ed DJ7GP oza\u0159ova\u010de.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"480\" src=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/SWR_ozarovac.png\" alt=\"\" class=\"wp-image-3922\" srcset=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/SWR_ozarovac.png 640w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2020\/03\/SWR_ozarovac-300x225.png 300w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>V tomto \u010dl\u00e1nku bych r\u00e1d popsal posledn\u00ed aktualizace a zm\u011bny v m\u00e9m \u00fazkop\u00e1smov\u00e9m a DATV vybaven\u00ed pro komunikaci pomoc\u00ed geostacion\u00e1rn\u00ed dru\u017eici EsHail-2. V p\u0159edchoz\u00edm \u010dl\u00e1nku jsem popisoval vybaven\u00ed pro \u00fazkop\u00e1smov\u00e9 provozy. Pou\u017e\u00edval jsem up-convertor s WiFi boosterem o v\u00fdkonu 4W. <a class=\"more-link\" href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/2020\/04\/datv-nb-provoz-pres-druzici-eshail-2\/\">Pokra\u010duj ve \u010dten\u00ed \u2192<\/a><\/p>\n","protected":false},"author":1,"featured_media":3919,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[1240,1129,1242,1241],"class_list":["post-3924","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ham","tag-datv","tag-eshail2","tag-limesdr","tag-portsdown"],"_links":{"self":[{"href":"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-json\/wp\/v2\/posts\/3924","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=3924"}],"version-history":[{"count":85,"href":"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-json\/wp\/v2\/posts\/3924\/revisions"}],"predecessor-version":[{"id":4372,"href":"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-json\/wp\/v2\/posts\/3924\/revisions\/4372"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-json\/wp\/v2\/media\/3919"}],"wp:attachment":[{"href":"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-json\/wp\/v2\/media?parent=3924"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-json\/wp\/v2\/categories?post=3924"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-json\/wp\/v2\/tags?post=3924"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}