{"id":10757,"date":"2014-08-22T11:02:00","date_gmt":"2014-08-22T11:02:00","guid":{"rendered":"https:\/\/rsgb.org\/main\/?p=10757"},"modified":"2022-05-19T10:52:39","modified_gmt":"2022-05-19T09:52:39","slug":"radcom-september-2014-vol-90-9","status":"publish","type":"post","link":"https:\/\/rsgb.org\/main\/blog\/publications\/radcom\/2014\/08\/22\/radcom-september-2014-vol-90-9\/","title":{"rendered":"RadCom September 2014, Vol. 90, 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=\"#5453\" 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\/2014\/September-2014.png\" alt=\"Cover of September 2014 RadCom - Cover image: RSGB President, John Gould, G3WKL operated W100AW at ARRL HQ. Photo: G3WKL\" width=\"200\" height=\"283\" \/><\/a><\/p>\n<h2>News and Reports<\/h2>\n<p><strong>6 RSGB Matters<\/strong><br \/>\nIncluding international friendship through amateur radio, volunteer vacancies, exam availability, joiners and rejoiners, QSL matters and congratulations<br \/>\n<strong>12 News<\/strong><br \/>\nAll the amateur radio news<br \/>\n<strong>14 New Products<\/strong><br \/>\nThe latest news from the amateur market<br \/>\n<strong>82 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 login, follow the link below or click the cover image to your right.<\/p>\n<ul>\n<li><a href=\"#5453\" target=\"_blank\" rel=\"noopener\">RadCom September 2014, Vol. 90, No. 9<\/a><\/li>\n<\/ul>\n<h2>Reviews<\/h2>\n<p><strong>22 bhi Dual In-Line Module<\/strong><br \/>\nThe latest 7W stereo\/dual channel DSP noise eliminating module examined by Mike Richards, G4WNC<br \/>\n<strong>31 FRinder<\/strong><br \/>\nGiles Read, G1MFG looks at a mobile app that finds repeaters in over 150 countries, shows real-time IRLP status, live EchoLink nodes and much more\u2014it can even program your radio for you with suitable CAT interface hardware<br \/>\n<strong>47 Book review<\/strong><br \/>\nRSGB Yearbook 2015, Callseeker Plus 2015 CD and memory stick plus the Deluxe Logbook and Diary2015 explored by Giles Read, G1MFG<br \/>\n<strong>47 Wouxun KG-UV950P quadband transceiver<\/strong><br \/>\nMobile 10m, 6m, 2m and 70cm all in one very neat package with 999 memory channels and cross-band operation, writes Richard Staples, G4HGI<br \/>\n<strong>76 The Alpha Antenna MicroTune magnetic loop<\/strong><br \/>\nSteve Nichols, G0KYA finds this portable compact loop antenna has a lot to offer<\/p>\n<h2>Features<\/h2>\n<p><strong>26 Getting started in&#8230; DXing<\/strong><br \/>\nChiltern DX Club chairman Dr Chris Duckling, G3SVL explains why DXing is an interesting part of our hobby<br \/>\n<strong>36 Youngsters on the Air 2014<\/strong><br \/>\nSteve Harley, G0FUW describes the YOTA 2014 amateur radio fun in Finland and Wolverhampton<br \/>\n<strong>40 RSGB Convention<\/strong><br \/>\nA look ahead at some of the highlights of October\u2019s flagship event<br \/>\n<strong>60 National Hamfest<\/strong><br \/>\nIt\u2019s here! 26 and 27 September sees the biggest National Hamfest yet, organised by Lincoln Short Wave Club in association with the RSGB<\/p>\n<h2>Technical Features<\/h2>\n<p><strong>16 Coupled resonance antennas<\/strong><br \/>\nTom Harrison, GM3NHQ reports on his experiments with parasitic dual band antennas that use passive coupling rather than hard-wiring to operate two resonant elements on different bands<br \/>\n<strong>32 Homebrew<\/strong><br \/>\nMaking your own simple equipment to measure RF voltage and power from milliwatts to nearly the full legal limit by Eamon Skelton, EI9GQ<br \/>\n<strong>42 Arrival angles of DX signals<\/strong><br \/>\nTony Preedy, G3LNP explains how the arrival angle of signals can influence antenna choice<br \/>\n<strong>48 Moving On<\/strong><br \/>\nInvestigating a tuned spark transmitter, a DIY Leyden jar capacitor and high-frequency, high power alternators with John Welsh, G0NVZ<br \/>\n<strong>58 Design Notes<\/strong><br \/>\nAndy Talbot, G4JNT continues his look at designing filters with a detailed description of how to come up with a bandpass filter from scratch<\/p>\n<h2>Regulars<\/h2>\n<p>91 Advertisers index<br \/>\n68 Antennas, Peter Dodd, G3LDO<br \/>\n74 ARDF, Andrew Soltysik, G4KWQ<br \/>\n46 AT V, Dave Mann, G8ADM<br \/>\n66 GHz Bands, Dr John Worsnop, G4BAO<br \/>\n62 HF, Martin Atherton, G3ZAY<br \/>\n95 IOTA , Col McGowan, MM0NDX<br \/>\n92 Members\u2019 Ads, Rallies and Events, Silent Keys, Special Event Stations<br \/>\n78 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 international friendship through amateur radio, volunteer vacancies, exam availability, joiners and rejoiners, QSL matters 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":[274,30],"tags":[],"class_list":["post-10757","post","type-post","status-publish","format-standard","hentry","category-front-page-news","category-radcom"],"_links":{"self":[{"href":"https:\/\/rsgb.org\/main\/wp-json\/wp\/v2\/posts\/10757","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=10757"}],"version-history":[{"count":0,"href":"https:\/\/rsgb.org\/main\/wp-json\/wp\/v2\/posts\/10757\/revisions"}],"wp:attachment":[{"href":"https:\/\/rsgb.org\/main\/wp-json\/wp\/v2\/media?parent=10757"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rsgb.org\/main\/wp-json\/wp\/v2\/categories?post=10757"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rsgb.org\/main\/wp-json\/wp\/v2\/tags?post=10757"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}