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        "rendered": "Equipment"
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        "rendered": "<div data-elementor-type=\"wp-page\" data-elementor-id=\"27\" class=\"elementor elementor-27\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-4bd13ed1 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"4bd13ed1\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-30daefe\" data-id=\"30daefe\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-66a9185a elementor-widget elementor-widget-heading\" data-id=\"66a9185a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">EQUIPMENT<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-441ffe65 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"441ffe65\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-10716c1b\" data-id=\"10716c1b\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-596b9497 elementor-widget elementor-widget-image\" data-id=\"596b9497\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/www.poliham.polimi.it\/wp-content\/uploads\/2021\/11\/Beacon-Project-1024x768.jpg\" class=\"attachment-large size-large wp-image-205\" alt=\"\" srcset=\"https:\/\/www.poliham.polimi.it\/wp-content\/uploads\/2021\/11\/Beacon-Project-1024x768.jpg 1024w, https:\/\/www.poliham.polimi.it\/wp-content\/uploads\/2021\/11\/Beacon-Project-300x225.jpg 300w, https:\/\/www.poliham.polimi.it\/wp-content\/uploads\/2021\/11\/Beacon-Project-768x576.jpg 768w, https:\/\/www.poliham.polimi.it\/wp-content\/uploads\/2021\/11\/Beacon-Project-16x12.jpg 16w, https:\/\/www.poliham.polimi.it\/wp-content\/uploads\/2021\/11\/Beacon-Project.jpg 1280w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-4c2ef7a9\" data-id=\"4c2ef7a9\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-c618ea3 elementor-widget elementor-widget-heading\" data-id=\"c618ea3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">WSPR Beacon<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1579967f elementor-widget elementor-widget-text-editor\" data-id=\"1579967f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The WSPR transmitter (beacon) covers the bands of 80, 40, 30, 20, 17, 15, 12 and 10m. The output power is about 200mW. It is powered via a 5 V USB port with a maximum absorption of 250 mA. It has an integrated GPS module for clock synchronization.<\/p><p><span style=\"color: var( --e-global-color-text ); font-family: var( --e-global-typography-text-font-family ), Sans-serif; font-weight: var( --e-global-typography-text-font-weight ); background-color: transparent;\">The transmitter is totally autonomous; Arduino firmware encodes WSPR packets and transmits them using a Silicon Labs PLL Si5351. The output from the PLL is a square wave that is amplified by a 74AC244 CI Line driver and adapted to a 50 ohm load via a MiniCircuits broadband transformer.\u00a0<\/span><\/p><p><span style=\"color: var( --e-global-color-text ); font-family: var( --e-global-typography-text-font-family ), Sans-serif; font-weight: var( --e-global-typography-text-font-weight ); background-color: transparent;\">The reference clock for the PLL is an Abracon ASTX-H11 TCXO 25 MHz oscillator.\u00a0<\/span><span style=\"color: var( --e-global-color-text ); font-family: var( --e-global-typography-text-font-family ), Sans-serif; font-weight: var( --e-global-typography-text-font-weight ); background-color: transparent;\">The reference has a stability specification of 2.5ppm which ensures good frequency stability when transmitting narrowband WSPR packets.<\/span><\/p><p>The signal comes out of the power amplifier as a square wave and must be filtered to remove harmonics.\u00a0<span style=\"color: var( --e-global-color-text ); font-family: var( --e-global-typography-text-font-family ), Sans-serif; font-weight: var( --e-global-typography-text-font-weight ); background-color: transparent;\">This is done by four switched low pass filters and an extra VHF suppression low pass filter. This reduces the harmonics by 50dB or more relative to the carrier.<\/span><\/p><p><span style=\"color: var( --e-global-color-text ); font-family: var( --e-global-typography-text-font-family ), Sans-serif; font-weight: var( --e-global-typography-text-font-weight ); background-color: transparent;\">More information on the hardware can be found on the website:\u00a0<\/span><a href=\"https:\/\/www.zachtek.com\/1012\"><span style=\"background-color: transparent;\">https:\/\/www.zachtek.com\/1012<\/span><\/a>.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-afc2d93 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"afc2d93\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-fc148b4\" data-id=\"fc148b4\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-f21bd74 elementor-widget elementor-widget-image\" data-id=\"f21bd74\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"800\" height=\"535\" src=\"https:\/\/www.poliham.polimi.it\/wp-content\/uploads\/2021\/11\/5555593450_04ba94cd23_c.jpg\" class=\"attachment-large size-large wp-image-84\" alt=\"\" srcset=\"https:\/\/www.poliham.polimi.it\/wp-content\/uploads\/2021\/11\/5555593450_04ba94cd23_c.jpg 800w, https:\/\/www.poliham.polimi.it\/wp-content\/uploads\/2021\/11\/5555593450_04ba94cd23_c-300x201.jpg 300w, https:\/\/www.poliham.polimi.it\/wp-content\/uploads\/2021\/11\/5555593450_04ba94cd23_c-768x514.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-2247ea5\" data-id=\"2247ea5\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-9edbfa9 elementor-widget elementor-widget-heading\" data-id=\"9edbfa9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Apparato 2<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a0c6843 elementor-widget elementor-widget-text-editor\" data-id=\"a0c6843\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Coming soon&#8230;<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-bcfb9a7 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"bcfb9a7\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-762bfdb\" data-id=\"762bfdb\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-dfb4ca2\" data-id=\"dfb4ca2\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>",
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        "rendered": "<p>APPARATI WSPR Beacon Il trasmettitore WSPR (beacon) copre le bande degli 80, 40, 30, 20, 17, 15, 12 e 10m. La potenza in uscita \u00e8 di circa 200mW. E&#8217; alimentato tramite una porta USB a 5 V con un assorbimento massimo di 250 mA. Dispone di un modulo GPS integrato per la sincronizzazione dell&#8217;orologio. Il&#8230;<\/p>",
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