{"id":1824,"date":"2017-07-10T22:06:12","date_gmt":"2017-07-10T22:06:12","guid":{"rendered":"http:\/\/dh5ym.hopto.org\/wiki\/?p=1824"},"modified":"2017-07-11T06:47:36","modified_gmt":"2017-07-11T06:47:36","slug":"wideband-amplifier","status":"publish","type":"post","link":"https:\/\/dh5ym.hopto.org\/wiki\/?p=1824","title":{"rendered":"Wideband amplifier"},"content":{"rendered":"<p>I tested my new assembled wideband high IP amplifier (BX-088) from Funkamateur. The transformers need to be handmade which is a very fiddling task. The cores are really small. I choose for 11dB gain assembly. The measurement shows, that the gain really rapidly drops below the 160m band. The figure fits to what is shown in the documentation. So far i did not measure the p1dB or IM3 behavior.<br \/>\nThe points that are interesting for me are 28MHz as LNA for my SDR or as IF amplifier for transverter input on 14\/28MHz and usage as pre-amp for 70MHz.<br \/>\n<div id=\"attachment_1823\" style=\"width: 310px\" class=\"wp-caption alignnone\"><a href=\"http:\/\/dh5ym.hopto.org\/wiki\/wp-content\/uploads\/2017\/07\/Measurement_Amp_FA.png\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-1823\" src=\"http:\/\/dh5ym.hopto.org\/wiki\/wp-content\/uploads\/2017\/07\/Measurement_Amp_FA-300x168.png\" alt=\"\" width=\"300\" height=\"168\" class=\"size-medium wp-image-1823\" srcset=\"https:\/\/dh5ym.hopto.org\/wiki\/wp-content\/uploads\/2017\/07\/Measurement_Amp_FA-300x168.png 300w, https:\/\/dh5ym.hopto.org\/wiki\/wp-content\/uploads\/2017\/07\/Measurement_Amp_FA-768x431.png 768w, https:\/\/dh5ym.hopto.org\/wiki\/wp-content\/uploads\/2017\/07\/Measurement_Amp_FA-500x281.png 500w, https:\/\/dh5ym.hopto.org\/wiki\/wp-content\/uploads\/2017\/07\/Measurement_Amp_FA.png 803w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><p id=\"caption-attachment-1823\" class=\"wp-caption-text\">Measurement of Funkamateur wideband amplifier<\/p><\/div><\/p>\n","protected":false},"excerpt":{"rendered":"<p>I tested my new assembled wideband high IP amplifier (BX-088) from Funkamateur. The transformers need to be handmade which is a very fiddling task. The cores are really small. I choose for 11dB gain assembly. The measurement shows, that the &hellip; <a href=\"https:\/\/dh5ym.hopto.org\/wiki\/?p=1824\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[24,10],"tags":[],"class_list":["post-1824","post","type-post","status-publish","format-standard","hentry","category-electronics","category-measurement"],"_links":{"self":[{"href":"https:\/\/dh5ym.hopto.org\/wiki\/index.php?rest_route=\/wp\/v2\/posts\/1824","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dh5ym.hopto.org\/wiki\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dh5ym.hopto.org\/wiki\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dh5ym.hopto.org\/wiki\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/dh5ym.hopto.org\/wiki\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1824"}],"version-history":[{"count":5,"href":"https:\/\/dh5ym.hopto.org\/wiki\/index.php?rest_route=\/wp\/v2\/posts\/1824\/revisions"}],"predecessor-version":[{"id":1829,"href":"https:\/\/dh5ym.hopto.org\/wiki\/index.php?rest_route=\/wp\/v2\/posts\/1824\/revisions\/1829"}],"wp:attachment":[{"href":"https:\/\/dh5ym.hopto.org\/wiki\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1824"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dh5ym.hopto.org\/wiki\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1824"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dh5ym.hopto.org\/wiki\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1824"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}