{"id":10702,"date":"2025-06-28T17:13:00","date_gmt":"2025-06-28T07:13:00","guid":{"rendered":"https:\/\/www.homebrewradio.us\/blog\/2025\/06\/28\/alan-w2aew-measures-the-minimum-discernible-signal-mds-of-the-soldersmoke-direct-conversion-receiver\/"},"modified":"2025-07-22T12:36:16","modified_gmt":"2025-07-22T02:36:16","slug":"alan-w2aew-measures-the-minimum-discernible-signal-mds-of-the-soldersmoke-direct-conversion-receiver","status":"publish","type":"post","link":"https:\/\/www.homebrewradio.us\/blog\/2025\/06\/28\/alan-w2aew-measures-the-minimum-discernible-signal-mds-of-the-soldersmoke-direct-conversion-receiver\/","title":{"rendered":"Alan W2AEW Measures the Minimum Discernible Signal (MDS) of the SolderSmoke Direct Conversion Receiver"},"content":{"rendered":"<p><iframe loading=\"lazy\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" allowfullscreen=\"\" frameborder=\"0\" height=\"247\" referrerpolicy=\"strict-origin-when-cross-origin\" src=\"https:\/\/www.youtube.com\/embed\/vR9_sLGFTJY?si=L_KCOfVptXloLN3Z?rel=0\" title=\"YouTube video player\" width=\"440\"><\/iframe><\/p>\n<div><\/div>\n<div><b>So cool that Alan did this. Here we see a rigrourous measurement of the MDS of our receiver, with a correction for the bandwidth. Very nice. <\/b><\/div>\n<div><b><br \/><\/b><\/div>\n<div><b>It can discern signals down to -125 dbm. I think that is pretty good for simple receiver like this. <\/b><\/div>\n<div><b><br \/><\/b><\/div>\n<div><b>Alan agrees that another way to do the sensitivity test is to just listen for the band noise when you connect and disconnect the antenna. Especially on the low HF bands, if you can hear it, you have sort of maxed out on receiver sensitivity. <\/b><\/div>\n<div><b><br \/><\/b><\/div>\n<div><b>Thanks Alan! <\/b><\/div>\n","protected":false},"excerpt":{"rendered":"<p>So cool that Alan did this. Here we see a rigrourous measurement of the MDS of our receiver, with a correction for the bandwidth. Very nice. It can discern signals down to -125 dbm. I think that is pretty good for simple receiver like this. Alan agrees that another way to do the sensitivity test &hellip; <a href=\"https:\/\/www.homebrewradio.us\/blog\/2025\/06\/28\/alan-w2aew-measures-the-minimum-discernible-signal-mds-of-the-soldersmoke-direct-conversion-receiver\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Alan W2AEW Measures the Minimum Discernible Signal (MDS) of the SolderSmoke Direct Conversion Receiver&#8221;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9,12,161],"tags":[],"class_list":["post-10702","post","type-post","status-publish","format-standard","hentry","category-dc-receiver-build","category-tj-dc-rx","category-wolke-alan"],"_links":{"self":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/10702","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=10702"}],"version-history":[{"count":1,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/10702\/revisions"}],"predecessor-version":[{"id":11068,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/10702\/revisions\/11068"}],"wp:attachment":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/media?parent=10702"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/categories?post=10702"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/tags?post=10702"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}