{"id":41926,"date":"2020-02-20T02:48:12","date_gmt":"2020-02-20T06:48:12","guid":{"rendered":"https:\/\/swling.com\/blog\/?p=41926"},"modified":"2020-02-20T02:48:12","modified_gmt":"2020-02-20T06:48:12","slug":"a-compact-rspdx-wellbrook-loop-kit-for-the-beach-my-approach","status":"publish","type":"post","link":"https:\/\/swling.com\/blog\/2020\/02\/a-compact-rspdx-wellbrook-loop-kit-for-the-beach-my-approach\/","title":{"rendered":"A Compact RSPdx &amp; Wellbrook Loop Kit for the Beach &#8212; My Approach"},"content":{"rendered":"<p>I have enjoyed three to four medium wave and shortwave DXpeditions per year since 1988, to sites on the Washington and Oregon coasts. I love the chance they give to experiment with antennas in a (hopefully!) noise-free location, and concentrate on catching stations that might not be heard from home.<\/p>\n<p>All of my DX trips have been via car&#8211;until now! I&#8217;ve just returned from nine vacation days in Hawaii (Waikoloa Beach, on the Big Island), and I thought others might like to see the radio related items I chose to take along for air travel. I&#8217;m pleased to report that everything worked as planned, and I have five days of SDR IQ WAV files of the MW band for review, all recorded in the time frame surrounding local dawn.<\/p>\n<p>My goal <strong>was not<\/strong> the smallest, most compact portable setup, but one with high performance <em>and<\/em> modest size. Fitting everything into a day pack was another requirement. A simple wire antenna and an even smaller Windows tablet or laptop than the one I&#8217;ve used (and a smaller SDR like the HF+ Discovery, for that matter) would make a much smaller package. However, the items I&#8217;ve assembled worked excellently for me during my enjoyable Hawaii vacation. The directional loop antenna provided nulls on medium wave of 30 dB during preliminary tests indoors, a less-than-ideal test situation.<\/p>\n<div id=\"attachment_41929\" style=\"width: 635px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2020\/02\/waikoloa-beach.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-41929\" class=\"wp-image-41929 size-large\" src=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2020\/02\/waikoloa-beach-1024x498.jpg\" alt=\"\" width=\"625\" height=\"304\" srcset=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2020\/02\/waikoloa-beach-1024x498.jpg 1024w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2020\/02\/waikoloa-beach-300x146.jpg 300w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2020\/02\/waikoloa-beach-768x373.jpg 768w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2020\/02\/waikoloa-beach-1536x746.jpg 1536w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2020\/02\/waikoloa-beach-624x303.jpg 624w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2020\/02\/waikoloa-beach.jpg 2000w\" sizes=\"auto, (max-width: 625px) 100vw, 625px\" \/><\/a><p id=\"caption-attachment-41929\" class=\"wp-caption-text\">Waikoloa Beach&#8211;just one of a zillion picturesque scenes in Hawaii.<\/p><\/div>\n<p>Here is a list of what I&#8217;ve put together for my DXing &#8220;kit&#8221;:<\/p>\n<ul>\n<li style=\"list-style-type: none\">\n<ul>\n<li><strong><a href=\"https:\/\/www.sdrplay.com\/rspdx\/\">SDRPlay RSPdx<\/a><\/strong> receiver<\/li>\n<li>Short USB cable for receiver&lt;&gt;PC connection, with two RFI chokes installed<\/li>\n<li><strong><a href=\"https:\/\/www.lenovo.com\/us\/en\/tablets\/windows-tablets\/thinkpad-tablet-series\/ThinkPad-X1-Tablet-1st-Gen\/p\/22TP2CP011220GG\">Lenovo X1 tablet<\/a><\/strong>&#8212; a Windows 10 device with magnetically attached keyboard; this model is a competitor to Microsoft&#8217;s Surface Pro tablet<\/li>\n<li>Wellbrook Communications&#8217; ALA1530 head amp module, modified for female SO239 connectors enabling use of large diameter LMR-600 coaxial cable as a 2-turn loop element. My antenna setup is similar to <strong><a href=\"https:\/\/www.wellbrook.uk.com\/loopantennas\/Loop_Antennas\/FLX1530LN-flexible-loop\">Wellbrook&#8217;s commercial flexible loop<\/a><\/strong><\/li>\n<li>Wooden base for the antenna (ALA1530 is bolted to the base)<\/li>\n<li>20 feet of lightweight RG-174 coax<\/li>\n<li>Wellbrook DC interface module for the ALA1530<\/li>\n<li>3.0 Ah LiFePO4 rechargeable battery for the Wellbrook antenna<\/li>\n<li>15 foot long section of high grade &#8220;Times Mfg.&#8221; LMR-600 coax cable with PL259 connectors (bought from Ebay already assembled\/soldered)<\/li>\n<li>Fold-up beach mat<\/li>\n<li>Small day pack to hold everything<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<div id=\"attachment_41933\" style=\"width: 635px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2020\/02\/Portable_RSPdx_setup.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-41933\" class=\"size-large wp-image-41933\" src=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2020\/02\/Portable_RSPdx_setup-1024x918.jpg\" alt=\"\" width=\"625\" height=\"560\" srcset=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2020\/02\/Portable_RSPdx_setup-1024x918.jpg 1024w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2020\/02\/Portable_RSPdx_setup-300x269.jpg 300w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2020\/02\/Portable_RSPdx_setup-768x689.jpg 768w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2020\/02\/Portable_RSPdx_setup-1536x1377.jpg 1536w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2020\/02\/Portable_RSPdx_setup-624x559.jpg 624w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2020\/02\/Portable_RSPdx_setup.jpg 2000w\" sizes=\"auto, (max-width: 625px) 100vw, 625px\" \/><\/a><p id=\"caption-attachment-41933\" class=\"wp-caption-text\">All the contents of this DXing setup fit a standard size day pack.<\/p><\/div>\n<p>You&#8217;ll note the absence of headphones in the list. This is because my intent from the start was to record all the DX (MW band) as SDR WAV files for DXing post-vacation. That said, I did have headphones in my travel luggage for later spot checks of a few frequencies. That&#8217;s how I found 576 kHz Yangon, Myanmar lurking at their 1700 sign-off with national anthem and English announcement. The remainder of the DX to be uncovered will have to wait until I&#8217;m back home near Seattle!<\/p>\n<p>The LMR-600 is a very thick and stiff coax cable, whose diameter approaches that used in the standard aluminum tubing ALA1530 series from Wellbrook. It has the benefit of being self-supporting in a 2-turn configuration and will also coil up into an approx. 12-inch package for transport. It just <em>barely<\/em> fits within the day pack I&#8217;m using. As I understand it, magnetic loops with tubing or large coax as the active element, versus simple wire, are more efficient in operation. Whether or not this holds true in practice remains to be seen.<\/p>\n<p>I fashioned a wooden disc 3\/4&#8243; thick to attach the ALA1530 head amplifier, as I didn&#8217;t want to bring along a tripod or other support stand. The Wellbrook antennas all work well near or at ground level, so I was able to get great reception with the antenna right on the beach. The diameter at two turns of the coax is only a few inches smaller diameter than Wellbrook&#8217;s aluminum tubing loops. Three strips of strategically placed Velcro straps help keep the turns together when deployed as well as during storage.<\/p>\n<p>In theory a two-turn loop should give 5 dB less gain than a single turn version; however, my older ALA1530 module has 5 dB <em>more<\/em> gain than the newer &#8220;LN&#8221; type, according to Andrew Ikin of Wellbrook Communications. The net result is that my two-turn antenna should have equal gain to the larger one-turn variety. Future experimentation with this DIY coax loop antenna is in order!<\/p>\n<div id=\"attachment_41943\" style=\"width: 635px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2020\/02\/beachdx_1.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-41943\" class=\"size-large wp-image-41943\" src=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2020\/02\/beachdx_1-1024x498.jpg\" alt=\"\" width=\"625\" height=\"304\" srcset=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2020\/02\/beachdx_1-1024x498.jpg 1024w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2020\/02\/beachdx_1-300x146.jpg 300w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2020\/02\/beachdx_1-768x373.jpg 768w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2020\/02\/beachdx_1-1536x746.jpg 1536w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2020\/02\/beachdx_1-624x303.jpg 624w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2020\/02\/beachdx_1.jpg 2000w\" sizes=\"auto, (max-width: 625px) 100vw, 625px\" \/><\/a><p id=\"caption-attachment-41943\" class=\"wp-caption-text\">The Wellbrook loop antenna, RSPdx receiver, and Windows 10 tablet on the beach in Waikoloa, Hawaii.<\/p><\/div>\n<div id=\"attachment_41931\" style=\"width: 635px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2020\/02\/beach_dxing_1.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-41931\" class=\"size-large wp-image-41931\" src=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2020\/02\/beach_dxing_1-1024x540.jpg\" alt=\"\" width=\"625\" height=\"330\" srcset=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2020\/02\/beach_dxing_1-1024x540.jpg 1024w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2020\/02\/beach_dxing_1-300x158.jpg 300w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2020\/02\/beach_dxing_1-768x405.jpg 768w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2020\/02\/beach_dxing_1-1536x810.jpg 1536w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2020\/02\/beach_dxing_1-624x329.jpg 624w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2020\/02\/beach_dxing_1.jpg 2000w\" sizes=\"auto, (max-width: 625px) 100vw, 625px\" \/><\/a><p id=\"caption-attachment-41931\" class=\"wp-caption-text\">Another view of the DXing position. Being this close to the water with my radio gear was unnerving at first, but the wave action on a calm Hawaii beach is totally different from the Oregon\/Washington beaches with waves that can move in and out by a hundred feet or more.<\/p><\/div>\n<div id=\"attachment_41932\" style=\"width: 635px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2020\/02\/DIY_ALA1530FLEX_2-turn_loop.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-41932\" class=\"size-large wp-image-41932\" src=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2020\/02\/DIY_ALA1530FLEX_2-turn_loop-1024x498.jpg\" alt=\"\" width=\"625\" height=\"304\" srcset=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2020\/02\/DIY_ALA1530FLEX_2-turn_loop-1024x498.jpg 1024w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2020\/02\/DIY_ALA1530FLEX_2-turn_loop-300x146.jpg 300w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2020\/02\/DIY_ALA1530FLEX_2-turn_loop-768x373.jpg 768w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2020\/02\/DIY_ALA1530FLEX_2-turn_loop-1536x746.jpg 1536w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2020\/02\/DIY_ALA1530FLEX_2-turn_loop-624x303.jpg 624w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2020\/02\/DIY_ALA1530FLEX_2-turn_loop.jpg 2000w\" sizes=\"auto, (max-width: 625px) 100vw, 625px\" \/><\/a><p id=\"caption-attachment-41932\" class=\"wp-caption-text\">The Wellbrook &#8220;DIY FlexLoop&#8221; works fine at beach level, and is less conspicuous this way, too.<\/p><\/div>\n<div id=\"attachment_41934\" style=\"width: 635px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2020\/02\/DIY_ALA1530FLEX_base.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-41934\" class=\"size-large wp-image-41934\" src=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2020\/02\/DIY_ALA1530FLEX_base-1024x714.jpg\" alt=\"\" width=\"625\" height=\"436\" srcset=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2020\/02\/DIY_ALA1530FLEX_base-1024x714.jpg 1024w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2020\/02\/DIY_ALA1530FLEX_base-300x209.jpg 300w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2020\/02\/DIY_ALA1530FLEX_base-768x535.jpg 768w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2020\/02\/DIY_ALA1530FLEX_base-1536x1071.jpg 1536w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2020\/02\/DIY_ALA1530FLEX_base-624x435.jpg 624w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2020\/02\/DIY_ALA1530FLEX_base.jpg 2000w\" sizes=\"auto, (max-width: 625px) 100vw, 625px\" \/><\/a><p id=\"caption-attachment-41934\" class=\"wp-caption-text\">The ALA1530 module is bolted to the 11-inch wooden disc for support. I&#8217;ve modified the module&#8217;s sockets to securely hold SO239 female connectors.<\/p><\/div>\n<p>The commercial <strong>Wellbrook FLX1530LN<\/strong> is a fine product, and worthy of your consideration as a compact and high performance travel antenna. Full details can be <strong><a href=\"https:\/\/www.wellbrook.uk.com\/loopantennas\/FLX1530LN-flexible-loop\">found at this link.<\/a><\/strong><\/p>\n<p style=\"text-align: center\"><strong>SDR WAV Files for Download<\/strong><\/p>\n<p>One of my goals from the start for my Hawaii trip was to bring back SDR &#8220;IQ&#8221; WAV files for sharing with others. These approx. 900 Mb files cover the entire medium wave band as heard from my beach location in Waikoloa.<\/p>\n<p>The overall page is:\u00a0<strong><a href=\"https:\/\/archive.org\/details\/@4nradio\" target=\"_blank\" rel=\"noopener noreferrer\">https:\/\/archive.org\/details\/@4nradio<\/a><\/strong>\u00a0 \u00a0Clicking on any of the entries will bring you to a details page. From there just right click on the &#8220;WAVE&#8221; link, and choose &#8220;Save as&#8230;&#8221; to download. For a few of the recordings I also posted the file that precedes the one that goes across the top-of-the-hour, because things seemed a bit more lively prior to 1700 (which\u00a0 was at local sunrise, give or take a couple of minutes).<\/p>\n<p>The IQ WAV files are only playable with suitable SDR radio software: <strong><a href=\"https:\/\/www.sdrplay.com\/downloads\/\">SDRuno<\/a><\/strong> is first choice (but you need a RSP receiver connected). The files are also is compatible with <strong><a href=\"http:\/\/hdsdr.de\/\">HDSDR<\/a><\/strong> and <strong><a href=\"https:\/\/www.sdr-radio.com\/download\">SDR-Console V3<\/a><\/strong>. It may also play on Studio 1 software.<\/p>\n<p>I hope other DXers enjoy the chance to tune through the MW band, as heard from the Big Island of Hawaii.<\/p>\n<p><a href=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2020\/02\/WaikoloaBeach.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-large wp-image-42054\" src=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2020\/02\/WaikoloaBeach-1024x498.jpg\" alt=\"\" width=\"625\" height=\"304\" srcset=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2020\/02\/WaikoloaBeach-1024x498.jpg 1024w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2020\/02\/WaikoloaBeach-300x146.jpg 300w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2020\/02\/WaikoloaBeach-768x373.jpg 768w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2020\/02\/WaikoloaBeach-1536x746.jpg 1536w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2020\/02\/WaikoloaBeach-624x303.jpg 624w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2020\/02\/WaikoloaBeach.jpg 1920w\" sizes=\"auto, (max-width: 625px) 100vw, 625px\" \/><\/a><\/p>\n<p style=\"text-align: center\"><em>Guy Atkins is a Sr. Graphic Designer for T-Mobile and lives near Seattle, Washington. \u00a0He\u2019s a regular contributor to the SWLing Post.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>I have enjoyed three to four medium wave and shortwave DXpeditions per year since 1988, to sites on the Washington and Oregon coasts. I love the chance they give to experiment with antennas in a (hopefully!) noise-free location, and concentrate on catching stations that might not be heard from home. All of my DX trips [&hellip;]<\/p>\n","protected":false},"author":55,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[3607,5935,399,433,3,3196,158,1154],"tags":[145,2224,6128,8324,374,432,157,8323],"class_list":["post-41926","post","type-post","status-publish","format-standard","hentry","category-antennas","category-dx","category-dxpeditions","category-mediumwave","category-news","category-portable-radio","category-software-defined-radio","category-travel","tag-dx","tag-dxpedition","tag-hawaii","tag-iq","tag-medium-wave","tag-mw","tag-sdr","tag-wav"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/pn3uc-aUe","jetpack-related-posts":[{"id":22777,"url":"https:\/\/swling.com\/blog\/2016\/12\/medium-wave-sdr-spectrum-with-over-20-transatlantic-signals-a-quick-tour\/","url_meta":{"origin":41926,"position":0},"title":"Medium wave SDR spectrum with over 20 transatlantic signals: a quick tour","author":"Clint Gouveia","date":"December 11, 2016","format":false,"excerpt":"\u00a0 Tour of a medium wave spectrum with over 20 transatlantic signals Hi there, I thought some of the readers of SWLing Post might be interested in a review of a MW spectrum with multiple transatlantic signals - all with audio. This is one of the recordings I took with\u2026","rel":"","context":"In &quot;AM&quot;","block_context":{"text":"AM","link":"https:\/\/swling.com\/blog\/category\/am\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/12\/spectrum-3.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/12\/spectrum-3.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/12\/spectrum-3.jpg?resize=525%2C300 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/12\/spectrum-3.jpg?resize=700%2C400 2x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/12\/spectrum-3.jpg?resize=1050%2C600 3x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/12\/spectrum-3.jpg?resize=1400%2C800 4x"},"classes":[]},{"id":24058,"url":"https:\/\/swling.com\/blog\/2017\/02\/a-quick-view-of-my-shack-in-oxford-uk-recent-transatlantic-medium-wave-dx\/","url_meta":{"origin":41926,"position":1},"title":"A quick view of my shack in Oxford, UK &amp; recent transatlantic medium wave DX","author":"Clint Gouveia","date":"February 8, 2017","format":false,"excerpt":"Someone recently described my shack in Oxford as 'an impressive mess'....\u00a0and that really is just about the most positive comment I've ever received regarding my listening post! So, my apologies for displaying the mess in public, but in response to having been asked many times by subscribers to Oxford Shortwave\u2026","rel":"","context":"In &quot;AM&quot;","block_context":{"text":"AM","link":"https:\/\/swling.com\/blog\/category\/am\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2017\/02\/OSL-shack.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2017\/02\/OSL-shack.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2017\/02\/OSL-shack.jpg?resize=525%2C300 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2017\/02\/OSL-shack.jpg?resize=700%2C400 2x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2017\/02\/OSL-shack.jpg?resize=1050%2C600 3x"},"classes":[]},{"id":21363,"url":"https:\/\/swling.com\/blog\/2016\/09\/medium-wave-dx-logs-wmex-cfrb-cjbc-wnyc-warv-wrca-wwru-received-in-oxford-uk\/","url_meta":{"origin":41926,"position":2},"title":"Medium wave DX logs: WMEX, CFRB, CJBC, WNYC, WARV, WRCA, WWRU received in Oxford, UK","author":"Clint Gouveia","date":"September 16, 2016","format":false,"excerpt":"Hi there, here is a selection of North American medium wave stations logged\u00a0in Oxford UK, over the past couple of weeks using the Elad FDM DUO and Wellbrook ALA1530 active loop antenna (indoors). \u00a0A quick list of stations logged follows below - with URL links which will take you directly\u2026","rel":"","context":"In &quot;Antennas&quot;","block_context":{"text":"Antennas","link":"https:\/\/swling.com\/blog\/category\/antennas\/"},"img":{"alt_text":"elad","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/09\/Elad-1024x559.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/09\/Elad-1024x559.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/09\/Elad-1024x559.jpg?resize=525%2C300 1.5x"},"classes":[]},{"id":21692,"url":"https:\/\/swling.com\/blog\/2016\/10\/medium-wave-dx-colombia-peru-ecuador-and-venezuela-heard-in-oxford-uk\/","url_meta":{"origin":41926,"position":3},"title":"Medium wave DX: Colombia, Peru, Ecuador and Venezuela heard in Oxford, UK","author":"Clint Gouveia","date":"October 5, 2016","format":false,"excerpt":"Hi there, I thought I would share a few recent medium wave DX catches from South America. In the past month or so, I've managed to record signals from Colombia, Peru, Venezuela and one that I'm particularly happy about - Ecuador, which is rarely reported in Europe. All catches were\u2026","rel":"","context":"In &quot;AM&quot;","block_context":{"text":"AM","link":"https:\/\/swling.com\/blog\/category\/am\/"},"img":{"alt_text":"part-south-america","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/10\/part-south-america.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/10\/part-south-america.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/10\/part-south-america.jpg?resize=525%2C300 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/10\/part-south-america.jpg?resize=700%2C400 2x"},"classes":[]},{"id":22014,"url":"https:\/\/swling.com\/blog\/2016\/11\/oxford-shortwave-log-200-metre-beverage-antenna-further-mw-and-sw-reception-videos\/","url_meta":{"origin":41926,"position":4},"title":"Oxford Shortwave Log 200 metre Beverage antenna: further MW and SW reception videos","author":"Clint Gouveia","date":"November 2, 2016","format":false,"excerpt":"Hi there, further to my previous post regarding the initial testing of the Medium Wave Circle-design 200 metre Beverage antenna at the woods in Oxford, UK, I am pleased to share further reception videos for both the medium wave and shortwave bands. For medium wave, I operated the FDM DUO\u2026","rel":"","context":"In &quot;AM&quot;","block_context":{"text":"AM","link":"https:\/\/swling.com\/blog\/category\/am\/"},"img":{"alt_text":"a1-beverage","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/11\/a1-beverage.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/11\/a1-beverage.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/11\/a1-beverage.jpg?resize=525%2C300 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/11\/a1-beverage.jpg?resize=700%2C400 2x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/11\/a1-beverage.jpg?resize=1050%2C600 3x"},"classes":[]},{"id":46013,"url":"https:\/\/swling.com\/blog\/2020\/10\/airspy-sdrs-new-killer-feature-the-co-channel-canceller\/","url_meta":{"origin":41926,"position":5},"title":"AirSpy SDR#&#8217;s New Killer Feature: the Co-Channel Canceller","author":"Guy Atkins","date":"October 18, 2020","format":false,"excerpt":"It's easy to take for granted the magical math that happens in Software Defined Radio. Occasionally though a breakthrough occurs which really grabs our attention, thanks to the hard work and bright minds of the designers behind the receivers and the software. On the software side, the first series of\u2026","rel":"","context":"In &quot;AM&quot;","block_context":{"text":"AM","link":"https:\/\/swling.com\/blog\/category\/am\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2020\/10\/co-chan-cancel.0.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2020\/10\/co-chan-cancel.0.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2020\/10\/co-chan-cancel.0.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2020\/10\/co-chan-cancel.0.png?resize=700%2C400&ssl=1 2x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/41926","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/users\/55"}],"replies":[{"embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/comments?post=41926"}],"version-history":[{"count":0,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/41926\/revisions"}],"wp:attachment":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/media?parent=41926"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/categories?post=41926"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/tags?post=41926"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}