{"id":12890,"date":"2015-07-17T12:01:23","date_gmt":"2015-07-17T12:01:23","guid":{"rendered":"https:\/\/rsgb.org\/main\/?p=12890"},"modified":"2022-05-19T10:46:58","modified_gmt":"2022-05-19T09:46:58","slug":"radcom-august-2015-vol-91-no-8","status":"publish","type":"post","link":"https:\/\/rsgb.org\/main\/blog\/publications\/radcom\/2015\/07\/17\/radcom-august-2015-vol-91-no-8\/","title":{"rendered":"RadCom August 2015, Vol. 91, No. 8"},"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=\"#5577\" 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\/August-2015.png\" alt=\"Cover image: Visitors try out radios on display at Ham Radio, Friedrichshafen. Image: Christa Thoma, copyright Messe Friedrichshafen\" width=\"200\" height=\"283\" \/><\/a><\/p>\n<h2>News and Reports<\/h2>\n<p><strong>6 RSGB Matters<\/strong><br \/>\nSupport Project DX-15, Club of the Year 2015, volunteers needed, Volunteer Spotlight, licence revalidation and other Ofcom news, exam changes for new licence, trophy photo gallery, QSL Matters, congratulations, joiners and rejoiners<br \/>\n<strong>11 News<\/strong><br \/>\nAll the amateur radio news<br \/>\n<strong>14 New products<\/strong><br \/>\nThe latest new products we&#8217;ve heard about this month<br \/>\n<strong>82 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=\"#5577\" target=\"_blank\" rel=\"noopener\">RadCom August 2015, Vol. 91, No. 9<\/a><\/li>\n<\/ul>\n<h2>Features<\/h2>\n<p><strong>16 Mills on the Air 2015<\/strong><br \/>\nA round-up of experiences in this year\u2019s event by Elaine Richards, G4LFM<br \/>\n<strong>20 Top tips when making an insurance claim<\/strong><br \/>\nJulian Dent of South West Broking examines what you should do, or not do, when claiming on your insurance<br \/>\n<strong>22 Using the Kenwood TS-590SG in a major contest<\/strong><br \/>\nMark Haynes, M0DXR describes his experiences working single operator two radio (SO2R) in the CQ WPX CW contest<br \/>\n<strong>43 Hitched to a Ham<\/strong><br \/>\nHeather Pritchard looks at the lighter side of being an XYL<br \/>\n<strong>55 Big Camp 2015<\/strong><br \/>\nSix thousand young people join together in activities including amateur radio, writes Michael Jones, 2E0MLJ<br \/>\n<strong>60 RSGB Convention and Hamfest<\/strong><br \/>\nA look forward to the two biggest events of the year<br \/>\n<strong>70 The GB3ZW 6m repeater<\/strong><br \/>\nDave Brown, GW4NQJ charts the highs and lows of getting a 6m repeater on the air<br \/>\n<strong>81 Friedrichshafen 2015<\/strong><br \/>\nHighlights of the 40th anniversary show by Murray Niman, G6JYB<\/p>\n<h2>Reviews<\/h2>\n<p><strong>61 Book review<\/strong><br \/>\n<em>Propagation and Radio Science<\/em> plus <em>Radar, Britain\u2019s Shield<\/em> and the <em>Defeat of the Luftwaffe<\/em> examined by Giles Read, G1MFG<\/p>\n<h2>Technical Features<\/h2>\n<p><strong>24 Thermal imaging for the radio amateur<\/strong><br \/>\nGiles Read, G1MFG looks at the world in a new way<br \/>\n<strong>26 A DC regulator for Honda generators<\/strong><br \/>\nMike Hall, G3USC tames the \u2018battery charge\u2019 output for radio use<br \/>\n<strong>32 A battery voltage conditioner for QRP rigs<\/strong><br \/>\nA simple project by Stuart Wisher, G8CYW to ensure your radio sees 13.8V when operating \/p<br \/>\n<strong>34 DC to light and beyond<\/strong><br \/>\nA look at wavelengths from Universe-size to utterly microscopic by Chris Saunders, G4ZCS<br \/>\n<strong>40 Design Notes<\/strong><br \/>\nAndy Talbot, G4JNT looks at an analogue\/digital system-on-a-chip, a new 12-bit 10MHz bandwidth VHF-UHF SDR, GPS module changes and a cautionary tale about wideband glitches<br \/>\n<strong>44 An integrated homebrew SDR transceiver<\/strong><br \/>\nMaking your own compact, tidy, all-in-one SDR plus linear and ATU by Andrew Churchley, G4EAQ<br \/>\n<strong>46 EMC<\/strong><br \/>\nPerformance of ferrite cores and chokes, interference from solar panel optimisers and broadcast stations discussed by Dr David Lauder, G0SNO<br \/>\n<strong>48 Moving On<\/strong><br \/>\nThe second half of the look at circular polarisation by John Welsh, G0NVZ<br \/>\n<strong>70 Data<\/strong><br \/>\nAndy Talbot, G4JNT looks at a new beacon mode, PI4<\/p>\n<p><em>Due to circumstances beyond our control we are unable to include Homebrew this month but it will be back in September.<\/em><\/p>\n<h2>Regulars<\/h2>\n<p>91 Advertisers\u2019 index<br \/>\n30 Antennas, Peter Dodd, G3LDO<br \/>\n68 GHz, Dr John Worsnop, G4BAO<br \/>\n64 HF, Martin Atherton, G3ZAY<br \/>\n63 LF, Dave Pick, G3YXM<br \/>\n89 Propagation, Gwyn Williams, G4KFH<br \/>\n60 QRP, Rev. George Dobbs, G3RJV<br \/>\n92 Members\u2019 ads, rallies and events, Silent Keys and special event stations<br \/>\n95 RSGB contacts<br \/>\n76 Sport radio, Steve White, G3ZVW<br \/>\n96 The Last Word<br \/>\n66 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 Support Project DX-15, Club of the Year 2015, volunteers needed, Volunteer Spotlight, licence revalidation and other Ofcom [&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-12890","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\/12890","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=12890"}],"version-history":[{"count":0,"href":"https:\/\/rsgb.org\/main\/wp-json\/wp\/v2\/posts\/12890\/revisions"}],"wp:attachment":[{"href":"https:\/\/rsgb.org\/main\/wp-json\/wp\/v2\/media?parent=12890"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rsgb.org\/main\/wp-json\/wp\/v2\/categories?post=12890"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rsgb.org\/main\/wp-json\/wp\/v2\/tags?post=12890"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}