{"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":"RTTY - I8ZSE","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"CTdL4j9GNg\"><a href=\"https:\/\/www.i8zse.it\/en\/digital\/rtty\/\">RTTY<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/www.i8zse.it\/en\/digital\/rtty\/embed\/#?secret=CTdL4j9GNg\" width=\"600\" height=\"338\" title=\"&#8220;RTTY&#8221; &#8212; I8ZSE\" data-secret=\"CTdL4j9GNg\" 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\/fldigi-rtty.png","thumbnail_width":864,"thumbnail_height":561,"description":"RTTY RTTY (Radio Teletype) is one of the most historic and fascinating digital modes in the world of amateur radio. It originates from the adaptation of electromechanical teleprinters to radio transmissions, systems developed from the second half of the 19th century for transmitting text over wired lines. The transition to radio began in the early [&hellip;]"}