{"id":441,"date":"2020-02-03T09:44:22","date_gmt":"2020-02-03T14:44:22","guid":{"rendered":"https:\/\/w4mln.net\/?p=441"},"modified":"2020-04-23T21:25:30","modified_gmt":"2020-04-24T01:25:30","slug":"qrp-labs-ultimate-3s-beacon-transmitter","status":"publish","type":"post","link":"https:\/\/w4mln.net\/?p=441","title":{"rendered":"QRP Labs Ultimate 3S Beacon Transmitter"},"content":{"rendered":"\n<p>Winter time is a great time to build a kit.  After having so much fun building the QRP Labs QCX 40 meter CW\/WSPR Transceiver, I thought I would try the <a rel=\"noreferrer noopener\" aria-label=\"U3S (opens in a new tab)\" href=\"https:\/\/qrp-labs.com\/ultimate3\/u3s.html\" target=\"_blank\">U3S<\/a> Transmitter Kit.  Although there seems to be fewer components, it&#8217;s still a challenging and time consuming kit.  With the added low pass filters for various bands, there are several toroids to wind.<\/p>\n\n\n\n<figure class=\"wp-block-gallery aligncenter columns-4 is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\"><ul class=\"blocks-gallery-grid\"><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/w4mln.net\/wp-content\/uploads\/2020\/01\/IMG_20200121_172312-1024x576.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/w4mln.net\/wp-content\/uploads\/2020\/01\/IMG_20200121_172312-1024x576.jpg\" alt=\"Ultimate3S Beginning\" data-id=\"434\" data-link=\"https:\/\/w4mln.net\/?attachment_id=434\" class=\"wp-image-434\" srcset=\"https:\/\/w4mln.net\/wp-content\/uploads\/2020\/01\/IMG_20200121_172312-1024x576.jpg 1024w, https:\/\/w4mln.net\/wp-content\/uploads\/2020\/01\/IMG_20200121_172312-300x169.jpg 300w, https:\/\/w4mln.net\/wp-content\/uploads\/2020\/01\/IMG_20200121_172312-768x432.jpg 768w, https:\/\/w4mln.net\/wp-content\/uploads\/2020\/01\/IMG_20200121_172312-1536x864.jpg 1536w, https:\/\/w4mln.net\/wp-content\/uploads\/2020\/01\/IMG_20200121_172312-2048x1152.jpg 2048w\" sizes=\"auto, (max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px\" \/><\/a><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/w4mln.net\/wp-content\/uploads\/2020\/01\/IMG_20200121_202034-1024x576.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/w4mln.net\/wp-content\/uploads\/2020\/01\/IMG_20200121_202034-1024x576.jpg\" alt=\"Bifilar Toroid\" data-id=\"447\" data-link=\"https:\/\/w4mln.net\/?attachment_id=447\" class=\"wp-image-447\" srcset=\"https:\/\/w4mln.net\/wp-content\/uploads\/2020\/01\/IMG_20200121_202034-1024x576.jpg 1024w, https:\/\/w4mln.net\/wp-content\/uploads\/2020\/01\/IMG_20200121_202034-300x169.jpg 300w, https:\/\/w4mln.net\/wp-content\/uploads\/2020\/01\/IMG_20200121_202034-768x432.jpg 768w, https:\/\/w4mln.net\/wp-content\/uploads\/2020\/01\/IMG_20200121_202034-1536x864.jpg 1536w, https:\/\/w4mln.net\/wp-content\/uploads\/2020\/01\/IMG_20200121_202034-2048x1152.jpg 2048w\" sizes=\"auto, (max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px\" \/><\/a><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/w4mln.net\/wp-content\/uploads\/2020\/01\/IMG_20200124_185736-1024x576.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/w4mln.net\/wp-content\/uploads\/2020\/01\/IMG_20200124_185736-1024x576.jpg\" alt=\"U3S with Si5351A Synthesizer Completed\" data-id=\"436\" data-link=\"https:\/\/w4mln.net\/?attachment_id=436\" class=\"wp-image-436\" srcset=\"https:\/\/w4mln.net\/wp-content\/uploads\/2020\/01\/IMG_20200124_185736-1024x576.jpg 1024w, https:\/\/w4mln.net\/wp-content\/uploads\/2020\/01\/IMG_20200124_185736-300x169.jpg 300w, https:\/\/w4mln.net\/wp-content\/uploads\/2020\/01\/IMG_20200124_185736-768x432.jpg 768w, https:\/\/w4mln.net\/wp-content\/uploads\/2020\/01\/IMG_20200124_185736-1536x864.jpg 1536w, https:\/\/w4mln.net\/wp-content\/uploads\/2020\/01\/IMG_20200124_185736-2048x1152.jpg 2048w\" sizes=\"auto, (max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px\" \/><\/a><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/w4mln.net\/wp-content\/uploads\/2020\/01\/IMG_20200125_125716-1024x576.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/w4mln.net\/wp-content\/uploads\/2020\/01\/IMG_20200125_125716-1024x576.jpg\" alt=\"U3S, Relay-switched LPF, Si5351A Synthesizer, QLG1 GPS Receiver Completed\" data-id=\"437\" data-link=\"https:\/\/w4mln.net\/?attachment_id=437\" class=\"wp-image-437\" srcset=\"https:\/\/w4mln.net\/wp-content\/uploads\/2020\/01\/IMG_20200125_125716-1024x576.jpg 1024w, https:\/\/w4mln.net\/wp-content\/uploads\/2020\/01\/IMG_20200125_125716-300x169.jpg 300w, https:\/\/w4mln.net\/wp-content\/uploads\/2020\/01\/IMG_20200125_125716-768x432.jpg 768w, https:\/\/w4mln.net\/wp-content\/uploads\/2020\/01\/IMG_20200125_125716-1536x864.jpg 1536w, https:\/\/w4mln.net\/wp-content\/uploads\/2020\/01\/IMG_20200125_125716-2048x1152.jpg 2048w\" sizes=\"auto, (max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px\" \/><\/a><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/w4mln.net\/wp-content\/uploads\/2020\/01\/IMG_20200126_195401-1024x576.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/w4mln.net\/wp-content\/uploads\/2020\/01\/IMG_20200126_195401-1024x576.jpg\" alt=\"10m and 6m Low Pass Filters Completed\" data-id=\"438\" data-link=\"https:\/\/w4mln.net\/?attachment_id=438\" class=\"wp-image-438\" srcset=\"https:\/\/w4mln.net\/wp-content\/uploads\/2020\/01\/IMG_20200126_195401-1024x576.jpg 1024w, https:\/\/w4mln.net\/wp-content\/uploads\/2020\/01\/IMG_20200126_195401-300x169.jpg 300w, https:\/\/w4mln.net\/wp-content\/uploads\/2020\/01\/IMG_20200126_195401-768x432.jpg 768w, https:\/\/w4mln.net\/wp-content\/uploads\/2020\/01\/IMG_20200126_195401-1536x864.jpg 1536w, https:\/\/w4mln.net\/wp-content\/uploads\/2020\/01\/IMG_20200126_195401-2048x1152.jpg 2048w\" sizes=\"auto, (max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px\" \/><\/a><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/w4mln.net\/wp-content\/uploads\/2020\/01\/IMG_20200127_212740-1024x576.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/w4mln.net\/wp-content\/uploads\/2020\/01\/IMG_20200127_212740-1024x576.jpg\" alt=\"QLG1 GPS Receiver Component Side\" data-id=\"444\" data-link=\"https:\/\/w4mln.net\/?attachment_id=444\" class=\"wp-image-444\" srcset=\"https:\/\/w4mln.net\/wp-content\/uploads\/2020\/01\/IMG_20200127_212740-1024x576.jpg 1024w, https:\/\/w4mln.net\/wp-content\/uploads\/2020\/01\/IMG_20200127_212740-300x169.jpg 300w, https:\/\/w4mln.net\/wp-content\/uploads\/2020\/01\/IMG_20200127_212740-768x432.jpg 768w, https:\/\/w4mln.net\/wp-content\/uploads\/2020\/01\/IMG_20200127_212740-1536x864.jpg 1536w, https:\/\/w4mln.net\/wp-content\/uploads\/2020\/01\/IMG_20200127_212740-2048x1152.jpg 2048w\" sizes=\"auto, (max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px\" \/><\/a><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/w4mln.net\/wp-content\/uploads\/2020\/01\/IMG_20200127_212806-1024x576.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/w4mln.net\/wp-content\/uploads\/2020\/01\/IMG_20200127_212806-1024x576.jpg\" alt=\"QLG1 GPS Receiver Antenna and Indicator Side\" data-id=\"445\" data-link=\"https:\/\/w4mln.net\/?attachment_id=445\" class=\"wp-image-445\" srcset=\"https:\/\/w4mln.net\/wp-content\/uploads\/2020\/01\/IMG_20200127_212806-1024x576.jpg 1024w, https:\/\/w4mln.net\/wp-content\/uploads\/2020\/01\/IMG_20200127_212806-300x169.jpg 300w, https:\/\/w4mln.net\/wp-content\/uploads\/2020\/01\/IMG_20200127_212806-768x432.jpg 768w, https:\/\/w4mln.net\/wp-content\/uploads\/2020\/01\/IMG_20200127_212806-1536x864.jpg 1536w, https:\/\/w4mln.net\/wp-content\/uploads\/2020\/01\/IMG_20200127_212806-2048x1152.jpg 2048w\" sizes=\"auto, (max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px\" \/><\/a><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/w4mln.net\/wp-content\/uploads\/2020\/02\/IMG_20200201_223500-1024x576.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/w4mln.net\/wp-content\/uploads\/2020\/02\/IMG_20200201_223500-1024x576.jpg\" alt=\"\" data-id=\"450\" data-link=\"https:\/\/w4mln.net\/?attachment_id=450\" class=\"wp-image-450\" srcset=\"https:\/\/w4mln.net\/wp-content\/uploads\/2020\/02\/IMG_20200201_223500-1024x576.jpg 1024w, https:\/\/w4mln.net\/wp-content\/uploads\/2020\/02\/IMG_20200201_223500-300x169.jpg 300w, https:\/\/w4mln.net\/wp-content\/uploads\/2020\/02\/IMG_20200201_223500-768x432.jpg 768w, https:\/\/w4mln.net\/wp-content\/uploads\/2020\/02\/IMG_20200201_223500-1536x864.jpg 1536w, https:\/\/w4mln.net\/wp-content\/uploads\/2020\/02\/IMG_20200201_223500-2048x1152.jpg 2048w\" sizes=\"auto, (max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px\" \/><\/a><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/w4mln.net\/wp-content\/uploads\/2020\/02\/IMG_20200201_223533-scaled.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/w4mln.net\/wp-content\/uploads\/2020\/02\/IMG_20200201_223533-1024x576.jpg\" alt=\"\" data-id=\"451\" data-full-url=\"https:\/\/w4mln.net\/wp-content\/uploads\/2020\/02\/IMG_20200201_223533-scaled.jpg\" data-link=\"https:\/\/w4mln.net\/?attachment_id=451\" class=\"wp-image-451\" srcset=\"https:\/\/w4mln.net\/wp-content\/uploads\/2020\/02\/IMG_20200201_223533-1024x576.jpg 1024w, https:\/\/w4mln.net\/wp-content\/uploads\/2020\/02\/IMG_20200201_223533-300x169.jpg 300w, https:\/\/w4mln.net\/wp-content\/uploads\/2020\/02\/IMG_20200201_223533-768x432.jpg 768w, https:\/\/w4mln.net\/wp-content\/uploads\/2020\/02\/IMG_20200201_223533-1536x864.jpg 1536w, https:\/\/w4mln.net\/wp-content\/uploads\/2020\/02\/IMG_20200201_223533-2048x1152.jpg 2048w\" sizes=\"auto, (max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px\" \/><\/a><\/figure><\/li><\/ul><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Winter time is a great time to build a kit. After having so much fun building the QRP Labs QCX 40 meter CW\/WSPR Transceiver, I thought I would try the U3S Transmitter Kit. Although there seems to be fewer components, it&#8217;s still a challenging and time consuming kit. With the added low pass filters for &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/w4mln.net\/?p=441\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;QRP Labs Ultimate 3S Beacon Transmitter&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-441","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/w4mln.net\/index.php?rest_route=\/wp\/v2\/posts\/441","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/w4mln.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/w4mln.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/w4mln.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/w4mln.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=441"}],"version-history":[{"count":6,"href":"https:\/\/w4mln.net\/index.php?rest_route=\/wp\/v2\/posts\/441\/revisions"}],"predecessor-version":[{"id":547,"href":"https:\/\/w4mln.net\/index.php?rest_route=\/wp\/v2\/posts\/441\/revisions\/547"}],"wp:attachment":[{"href":"https:\/\/w4mln.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=441"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/w4mln.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=441"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/w4mln.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=441"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}