{"id":13134,"date":"2015-08-14T11:00:24","date_gmt":"2015-08-14T11:00:24","guid":{"rendered":"https:\/\/rsgb.org\/main\/?p=13134"},"modified":"2022-05-19T10:46:25","modified_gmt":"2022-05-19T09:46:25","slug":"radcom-september-2015-vol-91-no-9","status":"publish","type":"post","link":"https:\/\/rsgb.org\/main\/blog\/publications\/radcom\/2015\/08\/14\/radcom-september-2015-vol-91-no-9\/","title":{"rendered":"RadCom September 2015, Vol. 91, No. 9"},"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=\"#5583\" 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\/September-2015.png\" alt=\"Cover image: The V51W super station in central Namibia used by Nigel, V5\/G3TXF in the Commonwealth Contest. Photo by Nigel, G3TXF\" width=\"200\" height=\"283\" \/><\/a><\/p>\n<h2>News and Reports<\/h2>\n<p><strong>6 RSGB Matters<\/strong><br \/>\nIncluding news on a new look for <em>RadCom<\/em>, the 60th anniversary of GB2RS, the G5RP Trophy, Volunteer Spotlight, Construction Competition, exam changes, President\u2019s review of contesting, QSL Matters, congratulations and welcome<br \/>\n<strong>12 News<\/strong><br \/>\nAll the amateur radio news<br \/>\n14 New Products<br \/>\nThe latest news from the amateur and technical market<br \/>\n<strong>80 Around Your Region<\/strong><br \/>\nOur regular round-up of club diaries and news reports<\/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=\"#5583\" target=\"_blank\" rel=\"noopener\">RadCom September 2015, Vol. 91, No. 9<\/a><\/li>\n<\/ul>\n<h2>Reviews<\/h2>\n<p><strong>30 Airspy SDR<\/strong><br \/>\nAndy Talbot, G4JNT is very impressed by the 12-bit performance, giving 24dB more dynamic range than \u2018RTL\u2019 dongles<br \/>\n<strong>33 Book review<\/strong><br \/>\nThe 2016 <em>RSGB Yearbook<\/em>, <em>Callseeker Plus 2016<\/em> and the <em>Deluxe Logbook &amp; Diary 2016<\/em> are examined by Giles Read, G1MFG<\/p>\n<h2>Features<\/h2>\n<p><strong>16 Commonwealth Contest 2015<\/strong><br \/>\nAll the fun of the 78th BERU Contest summarised by Mike Franklin, G3VYI<br \/>\n<strong>36 GB75MQ<\/strong><br \/>\nKevin Richardson, G0PEK describes the special event station aboard Medway Queen on the 75th anniversary of her role in the Dunkirk \u2018little ships\u2019 WWII rescue<br \/>\n<strong>38 National Hamfest<\/strong><br \/>\nIan Shepherd, G4EVK invites you to make a date in your diary on 25 and 26 September for the UK\u2019s biggest amateur radio show<br \/>\n<strong>42 HF noise measurement campaign<\/strong><br \/>\nAn update as the project reaches the half-way stage, by Gwyn Williams, G4FKH<br \/>\n<strong>46 RSGB Convention<\/strong><br \/>\nElaine Richards, G4LFM reveals the latest news on the lectures, demonstrations and social activities at this year\u2019s premier event<br \/>\n<strong>70 QSLing<\/strong><br \/>\nTom Wylie, GM4FDM looks at the final courtesy of a QSO from the point of view of a QSL Bureau volunteer<\/p>\n<h2>Technical Features<\/h2>\n<p><strong>20 In-car loop antenna<\/strong><br \/>\nIan Simpson, GM0SIM explains how you can still receive something on HF mobile despite extreme antenna restrictions<br \/>\n<strong>25 Homebrew<\/strong><br \/>\nHybrid PLL\/DDS local oscillator for the 10m transceiver project by Eamon Skelton, EI9GQ<br \/>\n<strong>34 Moving On<\/strong><br \/>\nA look at transmitter output impedance with John Welsh, G0NVZ<br \/>\n<strong>40 Transworld antenna modification<\/strong><br \/>\nNigel Brown, G0GDA explains how he modified his TW2010L Backpackers vertical dipole aerial for 40m<br \/>\n<strong>44 RF exposure safety with HF antennas<\/strong><br \/>\nA straightforward guide to a complicated subject by Peter DeNeef, AE7PD<br \/>\n<strong>54 Pushbutton controller for FT-817<\/strong><br \/>\nJonathan Hare, G1EXG uses a PIC to provide easy presets for his most frequently used frequencies and modes<br \/>\n<strong>58 Virtual test gear<\/strong><br \/>\nSometimes all you need is your PC and the right software, explains Geoff Theasby, G8BMI<br \/>\n<strong>76 Design Notes<\/strong><br \/>\nAndy Talbot, G4JNT explains how to use SMD parts in breadboard circuits and on your own PCBs<\/p>\n<h2>Regulars<\/h2>\n<p>91 Advertisers\u2019 index<br \/>\n68 Antennas, Peter Dodd, G3LDO<br \/>\n74 ARDF, John Marriott, M6OJM<br \/>\n24 ATV, Dave Mann, G8ADM<br \/>\n66 GHz bands, Dr John Worsnop, G4BAO<br \/>\n60 HF, Martin Atherton, G3ZAY<br \/>\n93 Members\u2019 ads, Rallies and events, Silent Keys, Special event stations<br \/>\n92 Propagation, Gwyn Williams, G4KFH<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 news on a new look for RadCom, the 60th anniversary of GB2RS, the G5RP Trophy, 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-13134","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\/13134","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=13134"}],"version-history":[{"count":0,"href":"https:\/\/rsgb.org\/main\/wp-json\/wp\/v2\/posts\/13134\/revisions"}],"wp:attachment":[{"href":"https:\/\/rsgb.org\/main\/wp-json\/wp\/v2\/media?parent=13134"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rsgb.org\/main\/wp-json\/wp\/v2\/categories?post=13134"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rsgb.org\/main\/wp-json\/wp\/v2\/tags?post=13134"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}