{"id":350,"date":"2017-05-29T08:00:27","date_gmt":"2017-05-29T08:00:27","guid":{"rendered":"https:\/\/klubnl.pl\/wpr\/?p=350"},"modified":"2017-07-12T20:56:38","modified_gmt":"2017-07-12T20:56:38","slug":"zevs-na-82hz-albo-dziwne-nosne-w-zakresie-elf","status":"publish","type":"post","link":"https:\/\/klubnl.pl\/wpr\/2017\/05\/29\/zevs-na-82hz-albo-dziwne-nosne-w-zakresie-elf\/","title":{"rendered":"ZEVS na 82Hz albo dziwne no\u015bne w zakresie ELF"},"content":{"rendered":"<p>Na cz\u0119stotliwo\u015bci oko\u0142o 82Hz nadaje z Rosji stacja nazywana przez radioamator\u00f3w ZEVS (na li\u015bcie rsgb-lf-group napisano \u017ce to jest znak wywo\u0142awczy). Informacje s\u0105 na stronach:<\/p>\n<p><a href=\"http:\/\/www.vlf.it\/zevs\/zevs.htm\">http:\/\/www.vlf.it\/zevs\/zevs.htm<\/a><\/p>\n<p><a href=\"https:\/\/en.wikipedia.org\/wiki\/ZEVS_%28transmitter%29\">https:\/\/en.wikipedia.org\/wiki\/ZEVS_%28transmitter%29<\/a><\/p>\n<p>&nbsp;<\/p>\n<p><!--more--><\/p>\n<p>Stacja jako anteny u\u017cywa dw\u00f3ch dipoli ziemnych o d\u0142ugo\u015bci oko\u0142o 60km.<\/p>\n<p>28 Maja 2017 o 16:27 UTC mo\u017cna by\u0142o odebra\u0107 s\u0142aby sygna\u0142 na 82Hz (odebrane u SQ5BPF: Warszawa KO02md):<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-351\" src=\"https:\/\/klubnl.pl\/wpr\/wp-content\/uploads\/2017\/05\/capt01.jpg\" alt=\"\" width=\"1357\" height=\"859\" \/><\/p>\n<p>Sygna\u0142 na 75Hz jest prawdopodobnie lokalny, cho\u0107 nie widzia\u0142em go wcze\u015bniej.<\/p>\n<p>P\u00f3\u017aniej sygna\u0142 przesun\u0105\u0142 si\u0119 na 88Hz. Poni\u017cej spektrogram z 28 Maja 2017 o 19:18 UTC:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-352\" src=\"https:\/\/klubnl.pl\/wpr\/wp-content\/uploads\/2017\/05\/capt1705282118.jpg\" alt=\"\" width=\"1357\" height=\"859\" \/><\/p>\n<p>Natomiast nast\u0119pnego dnia rano ju\u017c by\u0142 na 90Hz. Poni\u017cej spektrogram z 29 Maja 2017 o 6:37 UTC:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-353\" src=\"https:\/\/klubnl.pl\/wpr\/wp-content\/uploads\/2017\/05\/capt1705290621.jpg\" alt=\"\" width=\"1357\" height=\"859\" \/><\/p>\n<p>Par\u0119 godzin p\u00f3\u017aniej o 08:05 UTC sygna\u0142 przesun\u0105\u0142 si\u0119 na 92Hz, a potem znik\u0142 o 08:11 UTC:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-360\" src=\"https:\/\/klubnl.pl\/wpr\/wp-content\/uploads\/2017\/05\/capt1705290830.jpg\" alt=\"\" width=\"1357\" height=\"859\" \/><\/p>\n<p>Sygna\u0142y maj\u0105 stabiln\u0105 cz\u0119stotliwo\u015b\u0107. Mog\u0105 to by\u0107 lokalne zak\u0142\u00f3cenia,\u00a0 intermodulacja w mojej antenie lub odbiorniku, ale mo\u017ce to te\u017c by\u0107 pr\u00f3ba strojenia anteny nadajnika ZEVS na cz\u0119stotliwo\u015bciach poza normalnie stosowanym pasmem. Wed\u0142ug opis\u00f3w nadajnik mo\u017ce pracowa\u0107 w zakresie 20-250Hz.<\/p>\n<p>Poprawka: analiza sygna\u0142u z ca\u0142ego dnia pokazuje stabilny sygna\u0142 na 82Hz, oraz niezbyt stabilne sygna\u0142y powy\u017cej tej cz\u0119stotliwo\u015bci. Prawdopodobnie s\u0105 one wynikiem intermodulacji.<\/p>\n<p><a href=\"https:\/\/klubnl.pl\/wpr\/wp-content\/uploads\/2017\/05\/zevs5.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-364 size-full\" src=\"https:\/\/klubnl.pl\/wpr\/wp-content\/uploads\/2017\/05\/zevs5.png\" alt=\"\" width=\"2000\" height=\"1000\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Na cz\u0119stotliwo\u015bci oko\u0142o 82Hz nadaje z Rosji stacja nazywana przez radioamator\u00f3w ZEVS (na li\u015bcie rsgb-lf-group napisano \u017ce to jest znak wywo\u0142awczy). Informacje s\u0105 na stronach: http:\/\/www.vlf.it\/zevs\/zevs.htm https:\/\/en.wikipedia.org\/wiki\/ZEVS_%28transmitter%29 &nbsp;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[17,15,16],"class_list":["post-350","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-82hz","tag-elf","tag-zevs"],"translation":{"provider":"WPGlobus","version":"3.0.1","language":"pl","enabled_languages":["pl","en"],"languages":{"pl":{"title":true,"content":true,"excerpt":false},"en":{"title":true,"content":true,"excerpt":false}}},"_links":{"self":[{"href":"https:\/\/klubnl.pl\/wpr\/wp-json\/wp\/v2\/posts\/350","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/klubnl.pl\/wpr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/klubnl.pl\/wpr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/klubnl.pl\/wpr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/klubnl.pl\/wpr\/wp-json\/wp\/v2\/comments?post=350"}],"version-history":[{"count":10,"href":"https:\/\/klubnl.pl\/wpr\/wp-json\/wp\/v2\/posts\/350\/revisions"}],"predecessor-version":[{"id":423,"href":"https:\/\/klubnl.pl\/wpr\/wp-json\/wp\/v2\/posts\/350\/revisions\/423"}],"wp:attachment":[{"href":"https:\/\/klubnl.pl\/wpr\/wp-json\/wp\/v2\/media?parent=350"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/klubnl.pl\/wpr\/wp-json\/wp\/v2\/categories?post=350"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/klubnl.pl\/wpr\/wp-json\/wp\/v2\/tags?post=350"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}