{"id":268,"date":"2007-03-09T14:33:34","date_gmt":"2007-03-09T13:33:34","guid":{"rendered":"http:\/\/www.2000sub.org\/news\/un-modem-per-subacquei.html"},"modified":"2015-10-21T19:40:39","modified_gmt":"2015-10-21T17:40:39","slug":"un-modem-per-subacquei","status":"publish","type":"post","link":"https:\/\/www.2000sub.org\/news\/un-modem-per-subacquei.html","title":{"rendered":"Un modem per subacquei"},"content":{"rendered":"

\"ComunicazioneL’acqua salata del mare \u00e8 un buon conduttore di elettricit\u00e0 e per questo motivo impedisce di far penetrare in profondit\u00e0 le onde radio, usate invece senza problemi per le comunicazioni senza fili a terra. Per questo, finora, il modo principale per trasmettere dati sott’acqua era usare lunghi e ingombranti cavi oppure sfruttare le onde sonore, che arrivano lontano ma disturbano i pesci.<\/p>\n

Corto raggio.<\/strong> Grazie a tecniche di compressione dei dati e altre tecnologie, tuttavia, una compagnia inglese (www.wirelessfibre.co.uk<\/a>) \u00e8 adesso riuscita a mettere a punto un modem che pu\u00f2 trasmettere, sebbene a brevi distanze (50 metri circa), anche sotto il mare. Potr\u00e0 essere usato dai sub per comunicare tra loro e per mantenersi in contatto con la barca di appoggio, o per monitorare l’ambiente marino.<\/p>\n

\"Modem<\/div>\n

 <\/p>\n

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

L’acqua salata del mare \u00e8 un buon conduttore di elettricit\u00e0 e per questo motivo impedisce di far penetrare in profondit\u00e0 le onde radio, usate invece senza problemi per le comunicazioni<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[9],"tags":[],"class_list":["post-268","post","type-post","status-publish","format-standard","hentry","category-scienza-tecnica"],"acf":[],"yoast_head":"\nUn modem per subacquei - 2000 Sub Padova<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.2000sub.org\/news\/un-modem-per-subacquei.html\" \/>\n<meta property=\"og:locale\" content=\"it_IT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Un modem per subacquei - 2000 Sub Padova\" \/>\n<meta property=\"og:description\" content=\"L’acqua salata del mare \u00e8 un buon conduttore di elettricit\u00e0 e per questo motivo impedisce di far penetrare in profondit\u00e0 le onde radio, usate invece senza problemi per le comunicazioni\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.2000sub.org\/news\/un-modem-per-subacquei.html\" \/>\n<meta property=\"og:site_name\" content=\"2000 Sub Padova\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/2000.Sub.Padova\/\" \/>\n<meta property=\"article:published_time\" content=\"2007-03-09T13:33:34+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2015-10-21T17:40:39+00:00\" \/>\n<meta property=\"og:image\" content=\"http:\/\/www.2000sub.org\/img\/news\/sub_comm.jpg\" \/>\n<meta name=\"author\" content=\"2000 Sub Padova\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Scritto da\" \/>\n\t<meta name=\"twitter:data1\" content=\"2000 Sub Padova\" \/>\n\t<meta name=\"twitter:label2\" content=\"Tempo di lettura stimato\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minuto\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.2000sub.org\\\/news\\\/un-modem-per-subacquei.html#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.2000sub.org\\\/news\\\/un-modem-per-subacquei.html\"},\"author\":{\"name\":\"2000 Sub Padova\",\"@id\":\"https:\\\/\\\/www.2000sub.org\\\/news\\\/#\\\/schema\\\/person\\\/d310f471ce135508eb744cf84e9f8525\"},\"headline\":\"Un modem per subacquei\",\"datePublished\":\"2007-03-09T13:33:34+00:00\",\"dateModified\":\"2015-10-21T17:40:39+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.2000sub.org\\\/news\\\/un-modem-per-subacquei.html\"},\"wordCount\":134,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/www.2000sub.org\\\/news\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.2000sub.org\\\/news\\\/un-modem-per-subacquei.html#primaryimage\"},\"thumbnailUrl\":\"http:\\\/\\\/www.2000sub.org\\\/img\\\/news\\\/sub_comm.jpg\",\"articleSection\":[\"Scienza & Tecnologia\"],\"inLanguage\":\"it-IT\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.2000sub.org\\\/news\\\/un-modem-per-subacquei.html#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.2000sub.org\\\/news\\\/un-modem-per-subacquei.html\",\"url\":\"https:\\\/\\\/www.2000sub.org\\\/news\\\/un-modem-per-subacquei.html\",\"name\":\"Un modem per subacquei - 2000 Sub Padova\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.2000sub.org\\\/news\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.2000sub.org\\\/news\\\/un-modem-per-subacquei.html#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.2000sub.org\\\/news\\\/un-modem-per-subacquei.html#primaryimage\"},\"thumbnailUrl\":\"http:\\\/\\\/www.2000sub.org\\\/img\\\/news\\\/sub_comm.jpg\",\"datePublished\":\"2007-03-09T13:33:34+00:00\",\"dateModified\":\"2015-10-21T17:40:39+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.2000sub.org\\\/news\\\/un-modem-per-subacquei.html#breadcrumb\"},\"inLanguage\":\"it-IT\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.2000sub.org\\\/news\\\/un-modem-per-subacquei.html\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"it-IT\",\"@id\":\"https:\\\/\\\/www.2000sub.org\\\/news\\\/un-modem-per-subacquei.html#primaryimage\",\"url\":\"http:\\\/\\\/www.2000sub.org\\\/img\\\/news\\\/sub_comm.jpg\",\"contentUrl\":\"http:\\\/\\\/www.2000sub.org\\\/img\\\/news\\\/sub_comm.jpg\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.2000sub.org\\\/news\\\/un-modem-per-subacquei.html#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.2000sub.org\\\/news\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Un modem per subacquei\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.2000sub.org\\\/news\\\/#website\",\"url\":\"https:\\\/\\\/www.2000sub.org\\\/news\\\/\",\"name\":\"2000 Sub Padova\",\"description\":\"La subacquea per tutti\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.2000sub.org\\\/news\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.2000sub.org\\\/news\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"it-IT\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.2000sub.org\\\/news\\\/#organization\",\"name\":\"2000 Sub Padova\",\"url\":\"https:\\\/\\\/www.2000sub.org\\\/news\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"it-IT\",\"@id\":\"https:\\\/\\\/www.2000sub.org\\\/news\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/www.2000sub.org\\\/news\\\/wp-content\\\/uploads\\\/2020\\\/04\\\/logo-n.png\",\"contentUrl\":\"https:\\\/\\\/www.2000sub.org\\\/news\\\/wp-content\\\/uploads\\\/2020\\\/04\\\/logo-n.png\",\"width\":1024,\"height\":290,\"caption\":\"2000 Sub Padova\"},\"image\":{\"@id\":\"https:\\\/\\\/www.2000sub.org\\\/news\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/2000.Sub.Padova\\\/\",\"https:\\\/\\\/www.instagram.com\\\/2000sub\\\/?hl=it\",\"https:\\\/\\\/www.youtube.com\\\/channel\\\/UC2RcQsXru-TJ2ZAkqH9umBw\"]},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/www.2000sub.org\\\/news\\\/#\\\/schema\\\/person\\\/d310f471ce135508eb744cf84e9f8525\",\"name\":\"2000 Sub Padova\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"it-IT\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/eecc1c9059321d7623f447daa284646995787e7229b444f8db9cf171410fb3f4?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/eecc1c9059321d7623f447daa284646995787e7229b444f8db9cf171410fb3f4?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/eecc1c9059321d7623f447daa284646995787e7229b444f8db9cf171410fb3f4?s=96&d=mm&r=g\",\"caption\":\"2000 Sub Padova\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Un modem per subacquei - 2000 Sub Padova","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.2000sub.org\/news\/un-modem-per-subacquei.html","og_locale":"it_IT","og_type":"article","og_title":"Un modem per subacquei - 2000 Sub Padova","og_description":"L’acqua salata del mare \u00e8 un buon conduttore di elettricit\u00e0 e per questo motivo impedisce di far penetrare in profondit\u00e0 le onde radio, usate invece senza problemi per le comunicazioni","og_url":"https:\/\/www.2000sub.org\/news\/un-modem-per-subacquei.html","og_site_name":"2000 Sub Padova","article_publisher":"https:\/\/www.facebook.com\/2000.Sub.Padova\/","article_published_time":"2007-03-09T13:33:34+00:00","article_modified_time":"2015-10-21T17:40:39+00:00","og_image":[{"url":"http:\/\/www.2000sub.org\/img\/news\/sub_comm.jpg","type":"","width":"","height":""}],"author":"2000 Sub Padova","twitter_card":"summary_large_image","twitter_misc":{"Scritto da":"2000 Sub Padova","Tempo di lettura stimato":"1 minuto"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.2000sub.org\/news\/un-modem-per-subacquei.html#article","isPartOf":{"@id":"https:\/\/www.2000sub.org\/news\/un-modem-per-subacquei.html"},"author":{"name":"2000 Sub Padova","@id":"https:\/\/www.2000sub.org\/news\/#\/schema\/person\/d310f471ce135508eb744cf84e9f8525"},"headline":"Un modem per subacquei","datePublished":"2007-03-09T13:33:34+00:00","dateModified":"2015-10-21T17:40:39+00:00","mainEntityOfPage":{"@id":"https:\/\/www.2000sub.org\/news\/un-modem-per-subacquei.html"},"wordCount":134,"commentCount":0,"publisher":{"@id":"https:\/\/www.2000sub.org\/news\/#organization"},"image":{"@id":"https:\/\/www.2000sub.org\/news\/un-modem-per-subacquei.html#primaryimage"},"thumbnailUrl":"http:\/\/www.2000sub.org\/img\/news\/sub_comm.jpg","articleSection":["Scienza & Tecnologia"],"inLanguage":"it-IT","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.2000sub.org\/news\/un-modem-per-subacquei.html#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.2000sub.org\/news\/un-modem-per-subacquei.html","url":"https:\/\/www.2000sub.org\/news\/un-modem-per-subacquei.html","name":"Un modem per subacquei - 2000 Sub Padova","isPartOf":{"@id":"https:\/\/www.2000sub.org\/news\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.2000sub.org\/news\/un-modem-per-subacquei.html#primaryimage"},"image":{"@id":"https:\/\/www.2000sub.org\/news\/un-modem-per-subacquei.html#primaryimage"},"thumbnailUrl":"http:\/\/www.2000sub.org\/img\/news\/sub_comm.jpg","datePublished":"2007-03-09T13:33:34+00:00","dateModified":"2015-10-21T17:40:39+00:00","breadcrumb":{"@id":"https:\/\/www.2000sub.org\/news\/un-modem-per-subacquei.html#breadcrumb"},"inLanguage":"it-IT","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.2000sub.org\/news\/un-modem-per-subacquei.html"]}]},{"@type":"ImageObject","inLanguage":"it-IT","@id":"https:\/\/www.2000sub.org\/news\/un-modem-per-subacquei.html#primaryimage","url":"http:\/\/www.2000sub.org\/img\/news\/sub_comm.jpg","contentUrl":"http:\/\/www.2000sub.org\/img\/news\/sub_comm.jpg"},{"@type":"BreadcrumbList","@id":"https:\/\/www.2000sub.org\/news\/un-modem-per-subacquei.html#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.2000sub.org\/news"},{"@type":"ListItem","position":2,"name":"Un modem per subacquei"}]},{"@type":"WebSite","@id":"https:\/\/www.2000sub.org\/news\/#website","url":"https:\/\/www.2000sub.org\/news\/","name":"2000 Sub Padova","description":"La subacquea per tutti","publisher":{"@id":"https:\/\/www.2000sub.org\/news\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.2000sub.org\/news\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"it-IT"},{"@type":"Organization","@id":"https:\/\/www.2000sub.org\/news\/#organization","name":"2000 Sub Padova","url":"https:\/\/www.2000sub.org\/news\/","logo":{"@type":"ImageObject","inLanguage":"it-IT","@id":"https:\/\/www.2000sub.org\/news\/#\/schema\/logo\/image\/","url":"https:\/\/www.2000sub.org\/news\/wp-content\/uploads\/2020\/04\/logo-n.png","contentUrl":"https:\/\/www.2000sub.org\/news\/wp-content\/uploads\/2020\/04\/logo-n.png","width":1024,"height":290,"caption":"2000 Sub Padova"},"image":{"@id":"https:\/\/www.2000sub.org\/news\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/2000.Sub.Padova\/","https:\/\/www.instagram.com\/2000sub\/?hl=it","https:\/\/www.youtube.com\/channel\/UC2RcQsXru-TJ2ZAkqH9umBw"]},{"@type":"Person","@id":"https:\/\/www.2000sub.org\/news\/#\/schema\/person\/d310f471ce135508eb744cf84e9f8525","name":"2000 Sub Padova","image":{"@type":"ImageObject","inLanguage":"it-IT","@id":"https:\/\/secure.gravatar.com\/avatar\/eecc1c9059321d7623f447daa284646995787e7229b444f8db9cf171410fb3f4?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/eecc1c9059321d7623f447daa284646995787e7229b444f8db9cf171410fb3f4?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/eecc1c9059321d7623f447daa284646995787e7229b444f8db9cf171410fb3f4?s=96&d=mm&r=g","caption":"2000 Sub Padova"}}]}},"_links":{"self":[{"href":"https:\/\/www.2000sub.org\/news\/wp-json\/wp\/v2\/posts\/268","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.2000sub.org\/news\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.2000sub.org\/news\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.2000sub.org\/news\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.2000sub.org\/news\/wp-json\/wp\/v2\/comments?post=268"}],"version-history":[{"count":0,"href":"https:\/\/www.2000sub.org\/news\/wp-json\/wp\/v2\/posts\/268\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.2000sub.org\/news\/wp-json\/wp\/v2\/media?parent=268"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.2000sub.org\/news\/wp-json\/wp\/v2\/categories?post=268"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.2000sub.org\/news\/wp-json\/wp\/v2\/tags?post=268"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}