{"id":12159,"date":"2015-03-19T13:23:36","date_gmt":"2015-03-19T13:23:36","guid":{"rendered":"https:\/\/rsgb.org\/main\/?p=12159"},"modified":"2022-05-19T10:48:37","modified_gmt":"2022-05-19T09:48:37","slug":"radcom-april-2015-vol-91-4","status":"publish","type":"post","link":"https:\/\/rsgb.org\/main\/blog\/publications\/radcom\/2015\/03\/19\/radcom-april-2015-vol-91-4\/","title":{"rendered":"RadCom April 2015, Vol. 91, No. 4"},"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=\"#5550\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-6156 alignright\" title=\"Click the cover to read RadCom online\" src=\"https:\/\/thersgb.org\/images\/radcom\/covers\/2015\/April-2015.png\" alt=\"Cover of April 2015 RadCom - Cover image: The QTH of Bob Macleod, VP8LP and his XYL Janet, VP8AIB on the Falkland Islands. Photo: Bob Bower, GM4DLG\" width=\"200\" height=\"283\" \/><\/a><\/p>\n<h2>News and Reports<\/h2>\n<p><strong>6 RSGB Matters<\/strong><br \/>\nCalling Notice for the 2015 AGM, Club of the Year winners, Board and regional election results, volunteer vacancies, RSGB response to Ofcom UHF consultation, spotlight on the Planning Advisory Committee and the DRM for Suffolk, Train the Trainers news, new joiners, rejoiners and congratulations<br \/>\n<strong>12 News<\/strong><br \/>\nAll the amateur radio news<br \/>\n<strong>14 New Products<\/strong><br \/>\nExciting new products we\u2019ve heard about this month<br \/>\n<strong>38 Committee Reports<\/strong><br \/>\nFull reports on the work undertaken on behalf of RSGB Members in 2014 by the various RSGB Committees<br \/>\n<strong>60 AGM Financials and Voting<\/strong><br \/>\nFinancial reports on RSGB activities in 2014, plus the two Resolutions for this year\u2019s AGM and how to register your vote<br \/>\n<strong>87 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 Services login, follow the link below or click the cover image to your right.<\/p>\n<ul>\n<li><a href=\"#5550\" target=\"_blank\" rel=\"noopener\">RadCom April 2015, Vol. 91, No. 4<\/a><\/li>\n<\/ul>\n<h2>Features<\/h2>\n<p><strong>36 <em>Per ardua ad<\/em> VP8<\/strong><br \/>\nBob Bower, GM4DLG describes Exercise Sturdee Ham\u2014The RAFARS DXpedition to the Falkland Islands<br \/>\n<strong>70 The Story of GB3EX<\/strong><br \/>\nTeamwork, trials, tribulations and triumphs of getting a new repeater on the air, described by Pete Longhurst, G3ZVI<br \/>\n<strong>71 SSTV Without Radio<\/strong><br \/>\nYou can have fun receiving SSTV images and other modes without a radio in sight, reports Giles Read, G1MFG<\/p>\n<h2>Reviews<\/h2>\n<p><strong>26 Folding Antennas Hexbeam<\/strong><br \/>\nDavid Aslin, G3WGN is impressed by a 20-10m multiband antenna for small gardens, portable and DXpedition use<br \/>\n<strong>81 Book Review<\/strong><br \/>\nGiles Read, G1MFG enjoys <em>Hart Reviews<\/em> and <em>My Adventures As A Spy<\/em><\/p>\n<h2>Technical Features<\/h2>\n<p><strong>16 Design Notes<\/strong><br \/>\nAndy Talbot, G4JNT looks at noise\u2014generating it, measuring it, calibrated sources and more<br \/>\n<strong>18 Enclosures<\/strong><br \/>\nKlaus \u2018Cliff\u2019 Spies, WB9YBM shares his thoughts on enclosures for homebrew projects<br \/>\n<strong>20 Homebrew<\/strong><br \/>\nMore on the high quality single band 10m transceiver with Eamon Skelton, EI9GQ<br \/>\n<strong>25 Data<\/strong><br \/>\nAndy Talbot, G4JNT reports on a new HF chat mode and methods of digging signals out of the noise<br \/>\n<strong>32 Raspberry Pi in the Shack<\/strong><br \/>\nIn the final part of his series, Mike Richards, G4WNC reveals an improvement to the Raspberry Pi dongle server and designs a shack security system<br \/>\n<strong>58 EMC<\/strong><br \/>\nDraft interference regulations, PLT MIMO, fluorescent tube QRM, 4G networks, railway EMC and a wireless charging system exercise\u2014Dr David Lauder, G0SNO<br \/>\n<strong>80 The Windom<\/strong><br \/>\nAndy Choraffa, G3PKW clears up some myths about the off-centre fed dipole<br \/>\n<strong>86 Moving On<\/strong><br \/>\nPart one of a look at baluns with John Welsh, G0NVZ<\/p>\n<h2>Regulars<\/h2>\n<p>99 Advertisers\u2019 index<br \/>\n50 Antennas, Peter Dodd, G3LDO<br \/>\n78 GHz, Dr John Worsnop, G4BAO<br \/>\n74 HF, Martin Atherton, G3ZAY<br \/>\n72 LF, Dave Pick, G3YXM<br \/>\n103 Propagation, Gwyn Williams, G4KFH<br \/>\n52 QRP, Rev. George Dobbs, G3RJV<br \/>\n100 Members\u2019 ads, rallies and events, Silent Keys and special event stations<br \/>\n82 Sport Radio, Steve White, G3ZVW<br \/>\n104 The Last Word<br \/>\n76 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 Calling Notice for the 2015 AGM, Club of the Year winners, Board and regional election results, volunteer [&hellip;]<\/p>\n","protected":false},"author":41,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[274,30,55],"tags":[],"class_list":["post-12159","post","type-post","status-publish","format-standard","hentry","category-front-page-news","category-radcom","category-rsgb-notices"],"_links":{"self":[{"href":"https:\/\/rsgb.org\/main\/wp-json\/wp\/v2\/posts\/12159","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=12159"}],"version-history":[{"count":0,"href":"https:\/\/rsgb.org\/main\/wp-json\/wp\/v2\/posts\/12159\/revisions"}],"wp:attachment":[{"href":"https:\/\/rsgb.org\/main\/wp-json\/wp\/v2\/media?parent=12159"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rsgb.org\/main\/wp-json\/wp\/v2\/categories?post=12159"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rsgb.org\/main\/wp-json\/wp\/v2\/tags?post=12159"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}