{"version":"1.0","provider_name":"SADARS: Shefford and District Amateur Radio Society","provider_url":"https:\/\/sadars.co.uk\/wp","title":"1 Nov. 2018 \u2013 Feeding Antennas, pt2 by Richard, G3NII - SADARS: Shefford and District Amateur Radio Society","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"wy6LQWKBdD\"><a href=\"https:\/\/sadars.co.uk\/wp\/archives\/2092\">1 Nov. 2018 \u2013 Feeding Antennas, pt2 by Richard, G3NII<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/sadars.co.uk\/wp\/archives\/2092\/embed#?secret=wy6LQWKBdD\" width=\"600\" height=\"338\" title=\"&#8220;1 Nov. 2018 \u2013 Feeding Antennas, pt2 by Richard, G3NII&#8221; &#8212; SADARS: Shefford and District Amateur Radio Society\" data-secret=\"wy6LQWKBdD\" 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":"Part two began with the use of ladder line in place of coax. An explanation followed as to why variations in design affect the characteristic impedance.\u00a0 It was pointed out that window line is relatively easy to make for little cost. Richard then moved on to the subject of the Aerial Tuning Unit, Aerial Matching &hellip; Continue reading &rarr;"}