{"id":8710,"date":"2024-09-07T09:27:00","date_gmt":"2024-09-06T23:27:00","guid":{"rendered":"https:\/\/www.homebrewradio.us\/blog\/2024\/09\/07\/imd-and-splatter\/"},"modified":"2025-07-22T18:01:21","modified_gmt":"2025-07-22T08:01:21","slug":"imd-and-splatter","status":"publish","type":"post","link":"https:\/\/www.homebrewradio.us\/blog\/2024\/09\/07\/imd-and-splatter\/","title":{"rendered":"IMD and Splatter"},"content":{"rendered":"<\/p>\n
\"\"<\/a><\/div>\n<\/p>\n

https:\/\/www.robkalmeijer.nl\/techniek\/electronica\/radiotechniek\/hambladen\/hr\/1988\/10\/page71\/index.html<\/a><\/p>\n

I think the point I was trying to make about the influence of signal strength is here: <\/div>\n
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Referring to fig. 1C, note the high level of rf at the 3rd order level – typically 36-dB down. Consequently, there will be rf energy outside the normal 23 kHz passband that will be only 36-dB below the carrier peaks, or about one four-thousandth of the peak power. <\/span>Not bad if the station is only 25-30 dB out of the noise, but very objectionable if it’s 40-60 dB out of the noise.<\/b><\/span><\/i><\/span>
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I think it is supposed to read “2-3 kHz passband” vice “23kHz passband.”<\/div>\n

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I guess the point is that QRP levels of operation can hide a host of ills. IMD ills. This makes me wonder about the cleanliness of my own signals. I will have to do some more careful measurements. <\/span><\/div>\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

https:\/\/www.robkalmeijer.nl\/techniek\/electronica\/radiotechniek\/hambladen\/hr\/1988\/10\/page71\/index.html I think the point I was trying to make about the influence of signal strength is here: Referring to fig. 1C, note the high level of rf at the 3rd order level – typically 36-dB down. Consequently, there will be rf energy outside the normal 23 kHz passband that will be only 36-dB below … Continue reading “IMD and Splatter”<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":8711,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[84,346,23],"tags":[],"class_list":["post-8710","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-amplifier-theory","category-phase-noise","category-ssb"],"_links":{"self":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/8710","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=8710"}],"version-history":[{"count":1,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/8710\/revisions"}],"predecessor-version":[{"id":8712,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/8710\/revisions\/8712"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/media\/8711"}],"wp:attachment":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/media?parent=8710"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/categories?post=8710"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/tags?post=8710"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}