{"version":"1.0","provider_name":"SADARS: Shefford and District Amateur Radio Society","provider_url":"https:\/\/sadars.co.uk\/wp","title":"29 Oct. 2015 \u2013 Early Communications - by David, G8UOD - SADARS: Shefford and District Amateur Radio Society","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"Am7IZypCQH\"><a href=\"https:\/\/sadars.co.uk\/wp\/archives\/1069\">29 Oct. 2015 \u2013 Early Communications &#8211; by David, G8UOD<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/sadars.co.uk\/wp\/archives\/1069\/embed#?secret=Am7IZypCQH\" width=\"600\" height=\"338\" title=\"&#8220;29 Oct. 2015 \u2013 Early Communications &#8211; by David, G8UOD&#8221; &#8212; SADARS: Shefford and District Amateur Radio Society\" data-secret=\"Am7IZypCQH\" 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:\/\/sadars.co.uk\/wp\/wp-includes\/js\/wp-embed.min.js\n<\/script>\n","description":"David detailed the progress of electronic communications by wireless brought about by Marconi, the GPO and the Military including the many types of sets used during the First World War till it&#8217;s end.","thumbnail_url":"https:\/\/sadars.co.uk\/wp\/wp-content\/uploads\/2015\/10\/trench-radios.jpg","thumbnail_width":488,"thumbnail_height":252}