{"id":52227,"date":"2022-03-20T07:11:04","date_gmt":"2022-03-20T11:11:04","guid":{"rendered":"https:\/\/swling.com\/blog\/?p=52227"},"modified":"2022-03-20T09:13:31","modified_gmt":"2022-03-20T13:13:31","slug":"hanrongda-hrd-747-expanding-reception-to-include-longwave","status":"publish","type":"post","link":"https:\/\/swling.com\/blog\/2022\/03\/hanrongda-hrd-747-expanding-reception-to-include-longwave\/","title":{"rendered":"HanRongDa HRD-747: Expanding reception to include longwave"},"content":{"rendered":"<p><a href=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2021\/02\/HRD-747-Mei-Tao-5.jpeg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-47830\" src=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2021\/02\/HRD-747-Mei-Tao-5.jpeg\" alt=\"\" width=\"800\" height=\"400\" srcset=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2021\/02\/HRD-747-Mei-Tao-5.jpeg 800w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2021\/02\/HRD-747-Mei-Tao-5-300x150.jpeg 300w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2021\/02\/HRD-747-Mei-Tao-5-768x384.jpeg 768w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2021\/02\/HRD-747-Mei-Tao-5-624x312.jpeg 624w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/a>Many thanks to <em>SWLing Post<\/em> contributor, Dan Robinson, who shares the following video which shows how connecting an external antenna to the HDR-747 extends reception range down to longwave:<\/p>\n<p><span class=\"embed-youtube\" style=\"text-align:center; display: block;\"><iframe loading=\"lazy\" class=\"youtube-player\" width=\"625\" height=\"352\" src=\"https:\/\/www.youtube.com\/embed\/HguQU4trbSo?version=3&#038;rel=1&#038;showsearch=0&#038;showinfo=1&#038;iv_load_policy=1&#038;fs=1&#038;hl=en-US&#038;autohide=2&#038;wmode=transparent\" allowfullscreen=\"true\" style=\"border:0;\" sandbox=\"allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox\"><\/iframe><\/span><\/p>\n<p style=\"text-align: center;\"><a href=\"https:\/\/www.youtube.com\/watch?v=HguQU4trbSo\" target=\"_blank\" rel=\"noopener\">Click here to view on YouTube.<\/a><\/p>\n<p>Thanks for the tip, Dan!<\/p>\n<p><strong>Note:<\/strong> Dennis adds that the antenna used in this video <a href=\"https:\/\/sv2czf.com\/\" target=\"_blank\" rel=\"noopener\">can be found here<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Many thanks to SWLing Post contributor, Dan Robinson, who shares the following video which shows how connecting an external antenna to the HDR-747 extends reception range down to longwave: Click here to view on YouTube. Thanks for the tip, Dan! Note: Dennis adds that the antenna used in this video can be found here.<\/p>\n","protected":false},"author":15,"featured_media":0,"comment_status":"open","ping_status":"closed","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":[627,2436,3,3196,43],"tags":[2635,8143,9144,9145,4123],"class_list":["post-52227","post","type-post","status-publish","format-standard","hentry","category-how-to","category-longwave","category-news","category-portable-radio","category-shortwave-radio","tag-dan-robinson","tag-hanrongda","tag-hanrongda-hrd-747","tag-hrd-747","tag-longwave"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/pn3uc-dAn","jetpack-related-posts":[{"id":47826,"url":"https:\/\/swling.com\/blog\/2021\/02\/the-new-hanrongda-hrd-747-mei-tao-shares-preliminary-info-and-photos\/","url_meta":{"origin":52227,"position":0},"title":"The new HanRongDa HRD-747: Mei Tao shares preliminary info and photos","author":"Thomas","date":"February 17, 2021","format":false,"excerpt":"Many thanks to SWLing Post contributor, Mei Tao, who shares the following: Hi Thomas: Before the Chinese New Year, I received a prototype of the HRD-747 radio and was asked for suggestions on how to improve it. As far as I know, this little gem will hit the Chinese market\u2026","rel":"","context":"In &quot;New Products&quot;","block_context":{"text":"New Products","link":"https:\/\/swling.com\/blog\/category\/new-products\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2021\/02\/HRD-747-Mei-Tao-1.jpeg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2021\/02\/HRD-747-Mei-Tao-1.jpeg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2021\/02\/HRD-747-Mei-Tao-1.jpeg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2021\/02\/HRD-747-Mei-Tao-1.jpeg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":49310,"url":"https:\/\/swling.com\/blog\/2021\/06\/the-new-hanrongda-hrd-747-portable-spotted-on-ali-baba\/","url_meta":{"origin":52227,"position":1},"title":"The new HanRongDa HRD-747 portable spotted on Ali Baba","author":"Thomas","date":"June 19, 2021","format":false,"excerpt":"Many thanks to SWLing Post contributor, Michael Schuster, who writes: The Shenzhen HanRongDa HRD-747 is now spotted in the wholesale supply channel at US$53, minimum order 2 pieces. https:\/\/www.alibaba.com\/product-detail\/HRD-747-Portable-All-Band-Mini_1600253429230.html The Ali listing has some closeups showing the display and key functions, battery compartment, sockets, and even a brief video demonstrating\u2026","rel":"","context":"In &quot;New Products&quot;","block_context":{"text":"New Products","link":"https:\/\/swling.com\/blog\/category\/new-products\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2021\/06\/HanRongDa-HRD-747-1.jpeg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":52295,"url":"https:\/\/swling.com\/blog\/2022\/03\/paul-is-impressed-with-the-hanrongda-hrd-747\/","url_meta":{"origin":52227,"position":2},"title":"Paul is impressed with the HanRongDa HRD-747","author":"Thomas","date":"March 28, 2022","format":false,"excerpt":"Many thanks to SWLing Post contributor, Paul Jamet, who writes: Hello Thomas, I have just received the HRD-747 I ordered a fortnight ago. Of course, I quickly made some tests and I'd like to share two of them with you and the regulars of the SWLing Post: 1 - This\u2026","rel":"","context":"In &quot;New Products&quot;","block_context":{"text":"New Products","link":"https:\/\/swling.com\/blog\/category\/new-products\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2022\/03\/HDR-747-1-1.jpeg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2022\/03\/HDR-747-1-1.jpeg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2022\/03\/HDR-747-1-1.jpeg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2022\/03\/HDR-747-1-1.jpeg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2022\/03\/HDR-747-1-1.jpeg?resize=1050%2C600&ssl=1 3x"},"classes":[]},{"id":56205,"url":"https:\/\/swling.com\/blog\/2023\/03\/the-hanrongda-hrd-a320-paul-seeks-feedback-about-this-new-portable-radio\/","url_meta":{"origin":52227,"position":3},"title":"The HanRongDa HRD-A320: Paul seeks feedback about this new portable radio.","author":"Thomas","date":"March 28, 2023","format":false,"excerpt":"Many thanks to SWling Post contributor, Paul Jamet, who writes: Hi Thomas, After the HRD-737 : https:\/\/swling.com\/blog\/2019\/01\/inside-the-hanrongda-hdr-737-wide-frequency-receiver\/ and the HRD-747 : https:\/\/swling.com\/blog\/2022\/03\/paul-is-impressed-with-the-hanrongda-hrd-747\/ here is the HanRongDa HRD-A320 Does anyone have any information about this new receiver released by HanRongDa? https:\/\/www.aliexpress.com\/item\/1005005320277700.html With the WB band, this receiver seems intended mainly for\u2026","rel":"","context":"In &quot;New Products&quot;","block_context":{"text":"New Products","link":"https:\/\/swling.com\/blog\/category\/new-products\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2023\/03\/HanRongDa-HRD-A320-1.jpeg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2023\/03\/HanRongDa-HRD-A320-1.jpeg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2023\/03\/HanRongDa-HRD-A320-1.jpeg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":52011,"url":"https:\/\/swling.com\/blog\/2022\/03\/hanrongda-hrd-747-frank-creates-an-english-owners-manual\/","url_meta":{"origin":52227,"position":4},"title":"HanRongDa HRD-747: Frank creates an English Owner&#8217;s Manual","author":"Thomas","date":"March 1, 2022","format":false,"excerpt":"Many thanks to SWLing Post contributor, Frank, who writes: Hi Thomas, Last week I acquired a HanRongDa HRD-747. Really astonishing - a good receiving mini portable with wide range and many features. Therefore the manual is very important especially because there are only a few knobs to manage all functions.\u2026","rel":"","context":"In &quot;News&quot;","block_context":{"text":"News","link":"https:\/\/swling.com\/blog\/category\/news\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2021\/02\/HRD-747-Mei-Tao-4.jpeg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2021\/02\/HRD-747-Mei-Tao-4.jpeg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2021\/02\/HRD-747-Mei-Tao-4.jpeg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2021\/02\/HRD-747-Mei-Tao-4.jpeg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":38754,"url":"https:\/\/swling.com\/blog\/2019\/07\/imres-hanrongda-hrd-737-modification-increases-sensitivity\/","url_meta":{"origin":52227,"position":5},"title":"Imre&#8217;s HanRongDa HRD-737 modification increases sensitivity","author":"Thomas","date":"July 29, 2019","format":false,"excerpt":"Many thanks to SWLing Post contributor, Imre Olajos, who writes: Hi, HRD 737 lovers! I have a good news! I\u00a0 (became brave enough to) modify my HRD-737. I tried reverse-engineering- but I gave up. No numbers on IC-s. I found specifications for the analog switches (one for each band )\u2026","rel":"","context":"In &quot;News&quot;","block_context":{"text":"News","link":"https:\/\/swling.com\/blog\/category\/news\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2019\/07\/HanRongda-1024x584.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2019\/07\/HanRongda-1024x584.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2019\/07\/HanRongda-1024x584.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/52227","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\/15"}],"replies":[{"embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/comments?post=52227"}],"version-history":[{"count":0,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/52227\/revisions"}],"wp:attachment":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/media?parent=52227"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/categories?post=52227"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/tags?post=52227"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}