{"id":4875,"date":"2022-08-05T14:12:00","date_gmt":"2022-08-05T04:12:00","guid":{"rendered":"https:\/\/www.homebrewradio.us\/blog\/2022\/08\/05\/soldersmoke-podcast-239-hex-dx-vfo-temp-comp-dc-rx-polyakov-dx-100-wireless-set-farhans-daylight-again-hdr-rig-mailbag\/"},"modified":"2025-07-22T18:03:26","modified_gmt":"2025-07-22T08:03:26","slug":"soldersmoke-podcast-239-hex-dx-vfo-temp-comp-dc-rx-polyakov-dx-100-wireless-set-farhans-daylight-again-hdr-rig-mailbag","status":"publish","type":"post","link":"https:\/\/www.homebrewradio.us\/blog\/2022\/08\/05\/soldersmoke-podcast-239-hex-dx-vfo-temp-comp-dc-rx-polyakov-dx-100-wireless-set-farhans-daylight-again-hdr-rig-mailbag\/","title":{"rendered":"SolderSmoke Podcast #239: Hex DX, VFO Temp Comp, DC RX, Polyakov!, DX-100, Wireless Set, Farhan&#8217;s &#8220;Daylight Again&#8221; HDR rig,  MAILBAG"},"content":{"rendered":"<p><b><\/b><\/p>\n<div class=\"separator\" style=\"clear: both; text-align: center;\"><b><a href=\"https:\/\/www.homebrewradio.us\/blog\/wp-content\/uploads\/2022\/08\/Hex20Beam.jpg\" style=\"margin-left: 1em; margin-right: 1em;\"><img loading=\"lazy\" decoding=\"async\" border=\"0\" data-original-height=\"3024\" data-original-width=\"4032\" height=\"300\" src=\"https:\/\/www.homebrewradio.us\/blog\/wp-content\/uploads\/2022\/08\/Hex20Beam.jpg\" width=\"400\" \/><\/a><\/b><\/div>\n<div class=\"separator\" style=\"clear: both; text-align: center;\">N2CQR Hex Beam Aimed at Europe<\/div>\n<p><b><br \/>SolderSmoke #239 is available for download: <\/b><\/p>\n<p><b><a href=\"http:\/\/soldersmoke.com\/soldersmoke239.mp3\">http:\/\/soldersmoke.com\/soldersmoke239.mp3<\/a><\/b><\/p>\n<p class=\"MsoNormal\"><b><o:p><\/o:p><\/b><\/p>\n<p class=\"MsoNormal\"><b><u>TRAVELOGUE<\/u>:<span style=\"mso-spacerun: yes;\"> <\/span><\/b><\/p>\n<p class=\"MsoNormal\"><b><span style=\"mso-spacerun: yes;\"><\/span>James Webb Space Telescope.<span style=\"mso-spacerun: yes;\"> <\/span>Mars returning to opposition in early December. <span style=\"mso-spacerun: yes;\"> <\/span><o:p><\/o:p><\/b><\/p>\n<p class=\"MsoNormal\"><b><u>BILL&#8217;S BENCH<\/u><\/b><\/p>\n<p class=\"MsoNormal\"><b>Hex Beam K4KIO &#8211; on roof \u2013 TV Rotor \u2013 20-17-12<span style=\"mso-spacerun: yes;\"> <\/span>Lots of fun.<span style=\"mso-spacerun: yes;\"> <\/span>Working Japan regularly, Australia, South Africa on long path 17,000 miles.<span style=\"mso-spacerun: yes;\"> <\/span>52 countries SSB since July 11. <o:p><\/o:p><\/b><\/p>\n<p class=\"MsoNormal\"><b>VFOs and Temp stabilization.<span style=\"mso-spacerun: yes;\"> <\/span>Dean KK4DAS found my ceramic resonator VFO for DC receiver drifty. He was right.<span style=\"mso-spacerun: yes;\"> <\/span>So I built a real LC Colpitts VFO.<span style=\"mso-spacerun: yes;\"> <\/span>Got me into temp stabilization.<span style=\"mso-spacerun: yes;\"> <\/span>A new hobby!<span style=\"mso-spacerun: yes;\"> <\/span>An obsession. <span style=\"mso-spacerun: yes;\"> <\/span>HT-37 and Ht-32 parts. Ovens?<span style=\"mso-spacerun: yes;\"> <\/span>WU2D\u2019s second VFO video.<span style=\"mso-spacerun: yes;\"> <\/span>Understanding thermal drift and how to address it. Split stator caps.<span style=\"mso-spacerun: yes;\"> <\/span>Cut and try. <span style=\"mso-spacerun: yes;\"> <\/span><o:p><\/o:p><\/b><\/p>\n<p class=\"MsoNormal\"><b>Built a Polyakov DC Receiver.<\/b> <a href=\"https:\/\/soldersmoke.blogspot.com\/2010\/03\/polyakov-plus-dual-band-receiver-with.html\"><b>https:\/\/soldersmoke.blogspot.com\/2010\/03\/polyakov-plus-dual-band-receiver-with.html<\/b><\/a> <b>Lauser Plus. Lauser = Imp or Young Rascal!<\/b> <b>DK2RS. He used a ceramic Resonator VXO at 3.58 MHz. Mine works great on 40 with VFO running 3.5 &#8212; 3.65 MHz. See schematic below. <\/b><\/p>\n<p class=\"MsoNormal\"><b>On 40 AM with DX-100 and MMMRX.<span style=\"mso-spacerun: yes;\"> <\/span>DX-100 died.<span style=\"mso-spacerun: yes;\"> <\/span>12BY7 VFO buffer went bad.<span style=\"mso-spacerun: yes;\"> <\/span>How common is failure in this tube type? <span style=\"mso-spacerun: yes;\"> <\/span>Nice QSO with Tim WA1HLR about the DX-100. <o:p><\/o:p><\/b><\/p>\n<p class=\"MsoNormal\"><b>Got my Dominican license: <span style=\"mso-spacerun: yes;\"> <\/span>HI7\/N2CQR! <span style=\"mso-spacerun: yes;\"> <\/span>SSSS on the way. <span style=\"mso-spacerun: yes;\"> <\/span>Thanks to Radio Club Dominicano and INDOTEL. <o:p><\/o:p><\/b><\/p>\n<p class=\"MsoNormal\"><b>Getting more active in the Vienna Wireless Society. <\/b><\/p>\n<p class=\"MsoNormal\"><b><u>BOOK REVIEW<\/u>: <span style=\"mso-spacerun: yes;\"> <\/span><\/b><\/p>\n<p class=\"MsoNormal\"><b>&#8220;The History of the Universe in 21 Stars\u201d by Giles Sparrow.<span style=\"mso-spacerun: yes;\"> <\/span>Written during the pandemic.<span style=\"mso-spacerun: yes;\"> <\/span>Published by Welbeck, in London. <a href=\"https:\/\/www.amazon.com\/History-Universe-21-Stars-imposters\/dp\/1787394654\">https:\/\/www.amazon.com\/History-Universe-21-Stars-imposters\/dp\/1787394654<\/a><span style=\"mso-spacerun: yes;\"> <\/span>Also:<span style=\"mso-spacerun: yes;\"> <\/span>From \u201cAtoms to Amperes\u201d by F.A. Wilson available for download.<span style=\"mso-spacerun: yes;\"> <\/span>See blog. <o:p><\/o:p><\/b><\/p>\n<p class=\"MsoNormal\"><b><u>SHAMELESS COMMERCE DIVISION<\/u>: <span style=\"mso-spacerun: yes;\"> <\/span><\/b><\/p>\n<p class=\"MsoNormal\"><b>Todd K7TFC getting ready to launch \u201cMostly DIY RF.\u201d<span style=\"mso-spacerun: yes;\"> <\/span>I used his TIA boards in my 1712 rig.<span style=\"mso-spacerun: yes;\"> <\/span>He will have boards like this and much more.<span style=\"mso-spacerun: yes;\"> <\/span>Stay tuned. <o:p><\/o:p><\/b><\/p>\n<p class=\"MsoNormal\"><b>I need more viewers on YouTube.<span style=\"mso-spacerun: yes;\"> <\/span>They want 4,000 hours IN A CALENDAR YEAR!<span style=\"mso-spacerun: yes;\"> <\/span>Please watch! <o:p><\/o:p><\/b><\/p>\n<p class=\"MsoNormal\"><b><u>FARHAN\u2019S NEW \u201cDAYLIGHT AGAIN\u201d RIG.<span style=\"mso-spacerun: yes;\"> <\/span>Analog.<span style=\"mso-spacerun: yes;\"> <\/span>VFO.<span style=\"mso-spacerun: yes;\"> <\/span><span style=\"mso-spacerun: yes;\"> <\/span>Comments, observations. We need to get him on the podcast. Maybe two shows: SDR and HDR. <o:p><\/o:p><\/u><\/b><\/p>\n<p class=\"MsoNormal\"><b><u>PETE&#8217;S BENCH<\/u><\/b><\/p>\n<p class=\"MsoNormal\"><b>Time very limited. But still sharing lots of tribal wisdom. <o:p><\/o:p><\/b><\/p>\n<p class=\"MsoNormal\"><b>Wireless set with tubes! <o:p><\/o:p><\/b><\/p>\n<p class=\"MsoNormal\"><b>Tool recommendation \u2013 Air compressor<\/b><\/p>\n<p class=\"MsoNormal\"><b><o:p> <\/o:p><u>MAILBAG:<\/u><\/b><\/p>\n<p class=\"MsoNormal\"><b><o:p><\/o:p><\/b><\/p>\n<p class=\"MsoNormal\"><b>Farhan VU2ESE \u2013 Speaking of big antennas \u201c<span face=\"\"Arial\",sans-serif\" style=\"background: white; color: #222222;\">Whenever I look at the huge construction cranes in Hyderabad, I always think how one could make 160m, 4 element yagi using it as a boom..<\/span>\u201d<o:p><\/o:p><\/b><\/p>\n<p class=\"MsoNormal\"><b>Todd K7TFC in Spain, spotting Log Periodics in Madrid. <o:p><\/o:p><\/b><\/p>\n<p class=\"MsoNormal\"><b>Andreas DL1AJG:<span style=\"mso-spacerun: yes;\"> <\/span>Can Biologists fix Radios?<o:p><\/o:p><\/b><\/p>\n<p class=\"MsoNormal\"><b>Janis AB2RA Wireless Girl.<span style=\"mso-spacerun: yes;\"> <\/span>Expert on Hammarlunds.<span style=\"mso-spacerun: yes;\"> <\/span>And was my first contact with the Tuna Tin 2. She too was HB! <o:p><\/o:p><\/b><\/p>\n<p class=\"MsoNormal\"><b>Peter Parker VK3YE on Owen Duffy VK1OD<o:p><\/o:p><\/b><\/p>\n<p class=\"MsoNormal\"><b>Lex PH2LB on homebrew radio<o:p><\/o:p><\/b><\/p>\n<p class=\"MsoNormal\"><b>Would this really be homebrew?<span style=\"mso-spacerun: yes;\"> <\/span>Mail from H-A-D article on FM receiver<o:p><\/o:p><\/b><\/p>\n<p class=\"MsoNormal\"><b>F4IET a DSB rig from France<o:p><\/o:p><\/b><\/p>\n<p class=\"MsoNormal\"><b>Ciprian got his ticket YO6DXE <span style=\"mso-spacerun: yes;\"> <\/span><span style=\"mso-spacerun: yes;\"> <\/span><o:p><\/o:p><\/b><\/p>\n<p class=\"MsoNormal\"><b>Josh G3MOT sent us a good video about the Vanguard satellite and IGY.<o:p><\/o:p><\/b><\/p>\n<p class=\"MsoNormal\"><b>Dave Wilcox K8WPE bought Chuck Penson\u2019s Heathkit book. <o:p><\/o:p><\/b><\/p>\n<p class=\"MsoNormal\"><b>Rogier &#8212; So many great articles and links from PA1ZZ<o:p><\/o:p><\/b><\/p>\n<p class=\"MsoNormal\"><b>Bill AH6FC<span style=\"mso-spacerun: yes;\"> <\/span>Aloha. Retiring.<span style=\"mso-spacerun: yes;\"> <\/span>Wants to build.<span style=\"mso-spacerun: yes;\"> <\/span>Mahalo! <o:p><\/o:p><\/b><\/p>\n<p class=\"MsoNormal\"><b>Grayson KJ7UM<span style=\"mso-spacerun: yes;\"> <\/span>Working on an Si5351.<span style=\"mso-spacerun: yes;\"> <\/span>Gasp. <o:p><\/o:p><\/b><\/p>\n<p class=\"MsoNormal\"><b>Mike KE0TPE viewing YouTube while monitoring 6 meters. <span style=\"mso-spacerun: yes;\"> <\/span>He will have a lot of time to watch! <o:p><\/o:p><\/b><\/p>\n<p class=\"MsoNormal\"><b>Chris KD4PBJ spotted Don KM4UDX from VWS FB<o:p><\/o:p><\/b><\/p>\n<p class=\"MsoNormal\"><b>Mark WB8YMV building a superhet.<span style=\"mso-spacerun: yes;\"> <\/span>Having trouble with 455 kc IF can filter. <\/b><o:p><\/o:p><\/p>\n<p class=\"MsoNormal\"><b>Walter KA4KXX Great comment on the Daylight Again rig. <\/b><\/p>\n<p class=\"MsoNormal\"><b>Ramakrishnan Now VU2JXN was VU3RDD. Found lost Kindle with SolderSmoke book on it. Building SDR rig from junk box. Trouble with the LM386. <\/b><\/p>\n<p class=\"MsoNormal\"><b>Pete, Farhan and Tony: Shelves of Shame<\/b><\/p>\n<p class=\"MsoNormal\">\n<div class=\"separator\" style=\"clear: both; text-align: center;\"><a href=\"https:\/\/blogger.googleusercontent.com\/img\/b\/R29vZ2xl\/AVvXsEj7UV2zJ6J1y486NYv_q1rJFX1LlfnauN9kGaBRNtogohPw6j2Db0Gsw7yuVv-luFHj7TnknVeYUM7xT3LKzQNA0PSOqE6sv2hTfALrqEm7RS16w4B92wfKY7-arXTYQqN0cBggNbAiVvB8v7aaPyonrjnkmw-4SlrMHjlLyBQmk4uD1fbwbYOh0Kpg\/s1024\/Farhan's%20Daylight%20Rig.jpg\" style=\"margin-left: 1em; margin-right: 1em;\"><img loading=\"lazy\" decoding=\"async\" border=\"0\" data-original-height=\"768\" data-original-width=\"1024\" height=\"300\" src=\"https:\/\/www.homebrewradio.us\/blog\/wp-content\/uploads\/2022\/08\/image_1753084742.jpg's%20Daylight%20Rig.jpg\" width=\"400\" \/><\/a><\/div>\n<div class=\"separator\" style=\"clear: both; text-align: center;\">Daylight Again by Farhan<\/div>\n<div class=\"separator\" style=\"clear: both; text-align: center;\"><\/div>\n<div class=\"separator\" style=\"clear: both; text-align: center;\">\n<div class=\"separator\" style=\"clear: both; text-align: center;\"><a href=\"https:\/\/blogger.googleusercontent.com\/img\/a\/AVvXsEhA4coF6ynOQDeazk1k86xUizcBYktsRTftjWlNVkp0IVuSda4rwMwtt7-eoWRsGifFAXYQzHmI5jxFkBq8tiDdIxa6yxSiZ0VkxQ9FZb9ve7d45qOMJmmOx6ispiwiRFnQCmRZi_YC5MC7z5h8Z1sC7K6YS2386AxODDu8EN4QMFYzW7oYCt-AB_0G\" style=\"margin-left: 1em; margin-right: 1em;\"><img loading=\"lazy\" decoding=\"async\" alt=\"\" data-original-height=\"335\" data-original-width=\"400\" height=\"334\" src=\"https:\/\/www.homebrewradio.us\/blog\/wp-content\/uploads\/2022\/08\/image_1753084748.png\" width=\"400\" \/><\/a><\/div>\n<div class=\"separator\" style=\"clear: both; text-align: center;\">The Polyakov receiver I built yesterday (from SPRAT 110, 2002!)<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>N2CQR Hex Beam Aimed at Europe SolderSmoke #239 is available for download: http:\/\/soldersmoke.com\/soldersmoke239.mp3 TRAVELOGUE: James Webb Space Telescope. Mars returning to opposition in early December. BILL&#8217;S BENCH Hex Beam K4KIO &#8211; on roof \u2013 TV Rotor \u2013 20-17-12 Lots of fun. Working Japan regularly, Australia, South Africa on long path 17,000 miles. 52 countries SSB &hellip; <a href=\"https:\/\/www.homebrewradio.us\/blog\/2022\/08\/05\/soldersmoke-podcast-239-hex-dx-vfo-temp-comp-dc-rx-polyakov-dx-100-wireless-set-farhans-daylight-again-hdr-rig-mailbag\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;SolderSmoke Podcast #239: Hex DX, VFO Temp Comp, DC RX, Polyakov!, DX-100, Wireless Set, Farhan&#8217;s &#8220;Daylight Again&#8221; HDR rig,  MAILBAG&#8221;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":4876,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[42,130,69,13,64,19,66,95,192,49,17,91,101,53],"tags":[],"class_list":["post-4875","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-40-meters","category-am","category-antennas","category-astronomy","category-clubs","category-dominican-republic","category-farhan","category-germany","category-gqrp","category-soldersmoke-podcast","category-sprat","category-temperature-compensation","category-tubes","category-vfo"],"_links":{"self":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/4875","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/comments?post=4875"}],"version-history":[{"count":1,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/4875\/revisions"}],"predecessor-version":[{"id":4879,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/4875\/revisions\/4879"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/media\/4876"}],"wp:attachment":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/media?parent=4875"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/categories?post=4875"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/tags?post=4875"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}