{"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":"Codec2 - I8ZSE","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"6vspTKEbdN\"><a href=\"https:\/\/www.i8zse.it\/en\/digitalvoice\/codec2\/\">Codec2<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/www.i8zse.it\/en\/digitalvoice\/codec2\/embed\/#?secret=6vspTKEbdN\" width=\"600\" height=\"338\" title=\"&#8220;Codec2&#8221; &#8212; I8ZSE\" data-secret=\"6vspTKEbdN\" 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\/07\/freedv.jpg","thumbnail_width":1358,"thumbnail_height":738,"description":"Codec2: voice becomes free again For nearly fifty years, amateur radio has witnessed an extraordinary technological evolution. We have moved from vacuum tubes to DSPs, from teleprinters to the most sophisticated digital modes, from home-built oscillators to SDR receivers capable of displaying hundreds of kHz of radio spectrum on a screen. Throughout this journey, however, [&hellip;]"}