{"id":48,"date":"2013-01-23T13:03:11","date_gmt":"2013-01-23T12:03:11","guid":{"rendered":"https:\/\/pa3csg.nl\/?page_id=48"},"modified":"2018-02-06T15:40:52","modified_gmt":"2018-02-06T14:40:52","slug":"df1sr-hybrid-pics-and-test","status":"publish","type":"page","link":"https:\/\/pa3csg.nl\/?page_id=48","title":{"rendered":"DF1SR hybrid pics and test"},"content":{"rendered":"<p><span style=\"color: #000000;\">If you are looking to combine several amplifiers on 1296, you might be looking for a hybrid coupler. <\/span><\/p>\n<p><span style=\"color: #000000;\">Making one of those is a big job, especially if you don&#8217;t have the tools to do that.<\/span><\/p>\n<p><span style=\"color: #000000;\">The first view on the hybrid is one that it shines so much it only can get dirty in my shack.It shines so much that itis impossible to take pictures. You can see the reflection in the brass.<br \/>\n<\/span><\/p>\n<p><img loading=\"lazy\" class=\"wp-image-1197 aligncenter\" src=\"https:\/\/pa3csg.nl\/wp-content\/uploads\/2013\/01\/hybrid-open-1-300x271.jpg\" alt=\"hybrid-open\" width=\"734\" height=\"663\" srcset=\"https:\/\/pa3csg.nl\/wp-content\/uploads\/2013\/01\/hybrid-open-1-300x271.jpg 300w, https:\/\/pa3csg.nl\/wp-content\/uploads\/2013\/01\/hybrid-open-1-600x543.jpg 600w, https:\/\/pa3csg.nl\/wp-content\/uploads\/2013\/01\/hybrid-open-1-1024x926.jpg 1024w, https:\/\/pa3csg.nl\/wp-content\/uploads\/2013\/01\/hybrid-open-1.jpg 1068w\" sizes=\"(max-width: 734px) 100vw, 734px\" \/><\/p>\n<p><span style=\"color: #000000;\">\u00a0<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #000000;\">But will it preform well? I used my spectrum analyser\u00a0 and tracking generator to measure the hybrid. This is nothing compared<\/span><\/p>\n<p><span style=\"color: #000000;\">with a test on a network analyser but it gives some idea.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" class=\"wp-image-1198 aligncenter\" src=\"https:\/\/pa3csg.nl\/wp-content\/uploads\/2013\/01\/hybrid-doorgekopp-meet-300x265.jpg\" alt=\"hybrid-doorgekopp-meet\" width=\"689\" height=\"609\" srcset=\"https:\/\/pa3csg.nl\/wp-content\/uploads\/2013\/01\/hybrid-doorgekopp-meet-300x265.jpg 300w, https:\/\/pa3csg.nl\/wp-content\/uploads\/2013\/01\/hybrid-doorgekopp-meet-600x530.jpg 600w, https:\/\/pa3csg.nl\/wp-content\/uploads\/2013\/01\/hybrid-doorgekopp-meet.jpg 999w\" sizes=\"(max-width: 689px) 100vw, 689px\" \/><\/p>\n<p><span style=\"color: #000000;\">\u00a0Its reference is -2.6dB, the rest relative to this measurement. Centre frequency is 1296 MHz span is 200 MHz.<br \/>\n<\/span><\/p>\n<p><span style=\"color: #000000;\">Second is the output to the first input measurement.<\/span><\/p>\n<p><img loading=\"lazy\" class=\" wp-image-1200 aligncenter\" src=\"https:\/\/pa3csg.nl\/wp-content\/uploads\/2013\/01\/hybrid-uitg-2-meet-300x264.jpg\" alt=\"hybrid-uitg-2-meet\" width=\"695\" height=\"612\" srcset=\"https:\/\/pa3csg.nl\/wp-content\/uploads\/2013\/01\/hybrid-uitg-2-meet-300x264.jpg 300w, https:\/\/pa3csg.nl\/wp-content\/uploads\/2013\/01\/hybrid-uitg-2-meet-600x527.jpg 600w, https:\/\/pa3csg.nl\/wp-content\/uploads\/2013\/01\/hybrid-uitg-2-meet.jpg 1014w\" sizes=\"(max-width: 695px) 100vw, 695px\" \/><\/p>\n<p><span style=\"color: #000000;\">\u00a0<\/span><\/p>\n<p>Now the isolation of the 2 input ports is measured.<\/p>\n<p><img loading=\"lazy\" class=\" wp-image-1201 aligncenter\" src=\"https:\/\/pa3csg.nl\/wp-content\/uploads\/2013\/01\/hybrid-isol-meet-300x274.jpg\" alt=\"hybrid-isol-meet\" width=\"572\" height=\"522\" srcset=\"https:\/\/pa3csg.nl\/wp-content\/uploads\/2013\/01\/hybrid-isol-meet-300x274.jpg 300w, https:\/\/pa3csg.nl\/wp-content\/uploads\/2013\/01\/hybrid-isol-meet-600x548.jpg 600w, https:\/\/pa3csg.nl\/wp-content\/uploads\/2013\/01\/hybrid-isol-meet-1024x935.jpg 1024w, https:\/\/pa3csg.nl\/wp-content\/uploads\/2013\/01\/hybrid-isol-meet.jpg 1245w\" sizes=\"(max-width: 572px) 100vw, 572px\" \/><\/p>\n<p>Isolation is 22.8dB Good enough to isolate my 2 amplifier. It is also wideband enough.<\/p>\n<p>Nice results and very nice workmanship!<\/p>\n","protected":false},"excerpt":{"rendered":"<div class=\"mh-excerpt\"><p>If you are looking to combine several amplifiers on 1296, you might be looking for a hybrid coupler. Making one of those is a big <a class=\"mh-excerpt-more\" href=\"https:\/\/pa3csg.nl\/?page_id=48\" title=\"DF1SR hybrid pics and test\">[&#8230;]<\/a><\/p>\n<\/div>","protected":false},"author":1,"featured_media":859,"parent":0,"menu_order":60,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"categories":[40,16],"tags":[],"_links":{"self":[{"href":"https:\/\/pa3csg.nl\/index.php?rest_route=\/wp\/v2\/pages\/48"}],"collection":[{"href":"https:\/\/pa3csg.nl\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/pa3csg.nl\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/pa3csg.nl\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/pa3csg.nl\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=48"}],"version-history":[{"count":4,"href":"https:\/\/pa3csg.nl\/index.php?rest_route=\/wp\/v2\/pages\/48\/revisions"}],"predecessor-version":[{"id":1202,"href":"https:\/\/pa3csg.nl\/index.php?rest_route=\/wp\/v2\/pages\/48\/revisions\/1202"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pa3csg.nl\/index.php?rest_route=\/wp\/v2\/media\/859"}],"wp:attachment":[{"href":"https:\/\/pa3csg.nl\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=48"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/pa3csg.nl\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=48"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/pa3csg.nl\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=48"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}