{"version":"1.0","provider_name":"I8ZSE","provider_url":"https:\/\/www.i8zse.it\/en","author_name":"giorgio@i8zse.eu","author_url":"https:\/\/www.i8zse.it\/en\/author\/giorgioi8zse-eu\/","title":"Frequency modulation - I8ZSE","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"Nh6K68wMa0\"><a href=\"https:\/\/www.i8zse.it\/en\/modulation\/frequency-modulation\/\">Frequency modulation<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/www.i8zse.it\/en\/modulation\/frequency-modulation\/embed\/#?secret=Nh6K68wMa0\" width=\"600\" height=\"338\" title=\"&#8220;Frequency modulation&#8221; &#8212; I8ZSE\" data-secret=\"Nh6K68wMa0\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script>\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n\/\/# sourceURL=https:\/\/www.i8zse.it\/en\/wp-includes\/js\/wp-embed.min.js\n<\/script>\n","thumbnail_url":"https:\/\/www.i8zse.it\/en\/wp-content\/uploads\/2026\/06\/20260406_104526-2048x1153-1.jpg","thumbnail_width":2048,"thumbnail_height":1153,"description":"Alongside amplitude modulation, a fundamental role in the history of radio communications is played by frequency modulation (FM), in which information is not impressed onto the amplitude of the carrier, but onto its instantaneous frequency. In this case, the carrier maintains a substantially constant amplitude while its frequency varies over time following the behavior of [&hellip;]"}