{"id":9588,"date":"2014-02-18T10:42:41","date_gmt":"2014-02-18T10:42:41","guid":{"rendered":"https:\/\/rsgb.org\/main\/?p=9588"},"modified":"2022-05-19T10:55:03","modified_gmt":"2022-05-19T09:55:03","slug":"radcom-march-2014-vol-90-3","status":"publish","type":"post","link":"https:\/\/rsgb.org\/main\/blog\/publications\/radcom\/2014\/02\/18\/radcom-march-2014-vol-90-3\/","title":{"rendered":"RadCom March 2014, Vol. 90, No. 3"},"content":{"rendered":"<blockquote>\n<h4><strong>THIS EDITION IS TEMPORARILY UNAVAILABLE ONLINE<\/strong><\/h4>\n<h4>We apologise for any disappointment<\/h4>\n<h4>This edition is currently being converted to our HTML5 online viewer, which will bring enhanced readability, download speed and picture quality<\/h4>\n<\/blockquote>\n<p><a href=\"#5447\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-6156 alignright\" title=\"Click the cover to read RadCom online\" alt=\"Cover of March 2014 RadCom - The Lambda Loop horizontally polarised 2m mobile antenna, by G3NAQ\" src=\"https:\/\/thersgb.org\/images\/radcom\/covers\/2014\/March-2014.png\" width=\"198\" height=\"280\" \/><\/a><\/p>\n<h2>News and Reports<\/h2>\n<p><strong>6 RSGB Matters<\/strong><br \/>\nIncluding Convention news, Solar PV panel questions, Centenary Award winners, Revalidation, QSL matters, New Members and Congratulations<br \/>\n<strong>40 Committee Reports<\/strong><br \/>\nRSGB Committee chairs report on their 2013 activities ahead of the 2014 AGM<br \/>\n<strong>79 News<\/strong><br \/>\nAll the amateur radio news<br \/>\n<strong>83 Around Your Region<\/strong><br \/>\nClub news and planned events around the country<\/p>\n<h2>Read this edition online<\/h2>\n<p>You will need your RSGB membership login, follow the link below or click the cover image to your right.<\/p>\n<ul>\n<li><a href=\"#5447\" target=\"_blank\" rel=\"noopener\">RadCom March 2014, Vol. 90, No. 3<\/a><\/li>\n<\/ul>\n<h2>Reviews<\/h2>\n<p><strong>13 Yaesu FTdx1200<\/strong><br \/>\nPeter Hart, G3SJX looks at the new mid-range HF and 50MHz transceiver and asks how different it is from the FTdx3000<br \/>\n<strong>75 Book Review<\/strong><br \/>\nAll about SWR plus the ARRL\u2019s History of <em>QST<\/em><\/p>\n<h2>Features<\/h2>\n<p><strong>IOTA 50th Conference<\/strong><br \/>\nThis year marks the half-century of this popular awards programme and Roger Balister, G3KMA explains all about the celebratory conference<br \/>\n<strong>69 G100RSGB<\/strong><br \/>\nA final round-up of club reports at the end of a fantastically successful year for our peripatetic commemorative callsign<br \/>\n<strong>76 Exam Quiz<\/strong><br \/>\nSo you think you know about amateur radio exams? Steve Hartley, G0FUW poses some questions that you may find tricky to answer&#8230;<\/p>\n<h2>Technical Features<\/h2>\n<p><strong>18 Homebrew<\/strong><br \/>\nEamon Skelton, EI9GQ works on the IF section for his LF\/MF transceiver project<br \/>\n<strong>24 An Introduction to Moonbounce<\/strong><br \/>\nThe second half of the article by John Lemay, G4ZTR and John Regnault, G4SWX looks at the operating issues on this challenging mode<br \/>\n<strong>32 Getting Started in&#8230; LF<\/strong><br \/>\nTry our <em>real <\/em>low frequency band, 136kHz, and its medium frequency sibling, 472kHz, says Dave Pick, G3YXM<br \/>\n<strong>48 Moving On<\/strong><br \/>\nJohn Welsh, G0NVZ looks at the oft-misunderstood earth image of aerials<br \/>\n<strong>54 Design Notes<\/strong><br \/>\nDriving model control servos and a look at a new GPS module with Andy Talbot, G4JNT<br \/>\n<strong>58 The Lambda Loop<\/strong><br \/>\nGeoffrey Grayer, G3NAQ describes his practical, novel 2m mobile antenna for horizontal polarisation<\/p>\n<h2>Regulars<\/h2>\n<p>91 Advertisers index<br \/>\n36 Antennas, Peter Dodd, G3LDO<br \/>\n74 ARDF, John Marriott, RS205838<br \/>\n31 AT V, Dave Mann, G8ADM<br \/>\n66 GHz Bands, Dr John Worsnop, G4BAO<br \/>\n62 HF, Martin Atherton, G3ZAY<br \/>\n23 IOTA , Col McGowen, MM0NDX<br \/>\n92 Members\u2019 Ads, Rallies and Events, Silent Keys, Special Event Stations<br \/>\n82 Propagation, Gwyn Williams, G4KFH<br \/>\n95 RSGB Contacts<br \/>\n72 Sport Radio, Steve White, G3ZVW<br \/>\n96 The Last Word<br \/>\n64 VHF\/UHF, Richard Staples, G4HGI<\/p>\n","protected":false},"excerpt":{"rendered":"<p>THIS EDITION IS TEMPORARILY UNAVAILABLE ONLINE We apologise for any disappointment This edition is currently being converted to our HTML5 online viewer, which will bring enhanced readability, download speed and picture quality News and Reports 6 RSGB Matters Including Convention news, Solar PV panel questions, Centenary Award winners, Revalidation, QSL matters, New Members and Congratulations [&hellip;]<\/p>\n","protected":false},"author":41,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[30],"tags":[],"class_list":["post-9588","post","type-post","status-publish","format-standard","hentry","category-radcom"],"_links":{"self":[{"href":"https:\/\/rsgb.org\/main\/wp-json\/wp\/v2\/posts\/9588","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rsgb.org\/main\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rsgb.org\/main\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rsgb.org\/main\/wp-json\/wp\/v2\/users\/41"}],"replies":[{"embeddable":true,"href":"https:\/\/rsgb.org\/main\/wp-json\/wp\/v2\/comments?post=9588"}],"version-history":[{"count":0,"href":"https:\/\/rsgb.org\/main\/wp-json\/wp\/v2\/posts\/9588\/revisions"}],"wp:attachment":[{"href":"https:\/\/rsgb.org\/main\/wp-json\/wp\/v2\/media?parent=9588"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rsgb.org\/main\/wp-json\/wp\/v2\/categories?post=9588"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rsgb.org\/main\/wp-json\/wp\/v2\/tags?post=9588"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}