{"id":12897,"date":"2026-04-19T17:48:26","date_gmt":"2026-04-19T15:48:26","guid":{"rendered":"https:\/\/drozdowski.org\/?p=12897"},"modified":"2026-04-19T17:59:41","modified_gmt":"2026-04-19T15:59:41","slug":"sudety-r-208-przestrojenie-zakresu-ukf-655-74-mhz-na-obecny-88-108-mhz","status":"publish","type":"post","link":"https:\/\/drozdowski.org\/?p=12897","title":{"rendered":"Sudety R-208 &#8211; przestrojenie zakresu UKF 65,5\u201374 MHz na obecny 88\u2013108 MHz"},"content":{"rendered":"\n<p>Aby przestroi\u0107 radio <strong>Sudety R-208<\/strong> z dawnego zakresu UKF <strong>65,5\u201374 MHz<\/strong> na obecny <strong>88\u2013108 MHz<\/strong>, w g\u0142owicy UKF nale\u017cy zmniejszy\u0107 pojemno\u015bci kilku kondensator\u00f3w w obwodach wej\u015bciowych i heterodyny.<\/p>\n\n\n\n<p>Najcz\u0119\u015bciej stosowana modyfikacja dla <strong>Sudety R-208 \/ \u015anie\u017cka R-206\/R-207<\/strong> to:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>C2:<\/strong> z <strong>39 pF<\/strong> \u2192 <strong>15 pF<\/strong><\/li>\n\n\n\n<li><strong>C8:<\/strong> z <strong>75 pF<\/strong> \u2192 <strong>39 pF<\/strong><\/li>\n\n\n\n<li><strong>C14:<\/strong> z <strong>43 pF<\/strong> \u2192 <strong>18 pF<\/strong><\/li>\n\n\n\n<li><strong>C17:<\/strong> z <strong>27 pF<\/strong> \u2192 <strong>10 pF<\/strong><\/li>\n<\/ul>\n\n\n\n<p>Po tej zmianie nale\u017cy dostroi\u0107 obwody heterodyny i wej\u015bciowe rdzeniami cewek, aby uzyska\u0107 pe\u0142ne pokrycie pasma 88\u2013108 MHz.<\/p>\n\n\n\n<p><strong>Stosuj kondensatory ceramiczne<\/strong> (np. NPO\/C0G), napi\u0119cie <strong>50 V lub wy\u017csze<\/strong>.<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Po wymianie kondensator\u00f3w:\n<ul class=\"wp-block-list\">\n<li>d\u00f3\u0142 pasma ustawiasz <strong>rdzeniem cewki heterodyny<\/strong><\/li>\n\n\n\n<li>g\u00f3r\u0119 pasma ustawiasz <strong>trymerem<\/strong><\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>Je\u015bli radio nie pokryje ca\u0142ego pasma, czasem trzeba lekko <strong>rozci\u0105gn\u0105\u0107 zwoje cewki heterodyny<\/strong>.<\/li>\n<\/ol>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Aby przestroi\u0107 radio Sudety R-208 z dawnego zakresu UKF 65,5\u201374 MHz na obecny 88\u2013108 MHz, w g\u0142owicy UKF nale\u017cy zmniejszy\u0107 pojemno\u015bci kilku kondensator\u00f3w w obwodach wej\u015bciowych i heterodyny. Najcz\u0119\u015bciej stosowana modyfikacja dla Sudety R-208 \/ \u015anie\u017cka R-206\/R-207 to: Po tej zmianie nale\u017cy dostroi\u0107 obwody heterodyny i wej\u015bciowe rdzeniami cewek, aby [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":12882,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_themeisle_gutenberg_block_has_review":false,"footnotes":""},"categories":[72],"tags":[92],"class_list":["post-12897","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-elektronika","tag-elektronika"],"_links":{"self":[{"href":"https:\/\/drozdowski.org\/index.php?rest_route=\/wp\/v2\/posts\/12897","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/drozdowski.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/drozdowski.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/drozdowski.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/drozdowski.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=12897"}],"version-history":[{"count":2,"href":"https:\/\/drozdowski.org\/index.php?rest_route=\/wp\/v2\/posts\/12897\/revisions"}],"predecessor-version":[{"id":12899,"href":"https:\/\/drozdowski.org\/index.php?rest_route=\/wp\/v2\/posts\/12897\/revisions\/12899"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/drozdowski.org\/index.php?rest_route=\/wp\/v2\/media\/12882"}],"wp:attachment":[{"href":"https:\/\/drozdowski.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=12897"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/drozdowski.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=12897"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/drozdowski.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=12897"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}