{"id":7674,"date":"2024-05-02T16:50:00","date_gmt":"2024-05-02T06:50:00","guid":{"rendered":"https:\/\/www.homebrewradio.us\/blog\/2024\/05\/02\/chuck-adams-modification-of-the-mxm-simple-transceiver-an-early-qso-with-the-mxm-thirty-years-ago\/"},"modified":"2025-07-22T18:01:41","modified_gmt":"2025-07-22T08:01:41","slug":"chuck-adams-modification-of-the-mxm-simple-transceiver-an-early-qso-with-the-mxm-thirty-years-ago","status":"publish","type":"post","link":"https:\/\/www.homebrewradio.us\/blog\/2024\/05\/02\/chuck-adams-modification-of-the-mxm-simple-transceiver-an-early-qso-with-the-mxm-thirty-years-ago\/","title":{"rendered":"Chuck Adams’ Modification of the MXM Simple Transceiver — An Early QSO with the MXM Thirty Years Ago"},"content":{"rendered":"<\/p>\n
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Click for a better view<\/span><\/div>\n
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Esteemed Homebrew Hero Chuck Adams AA7FO saw me struggling with the T\/R switch on my hamfest-found MXM SupeRX\/TX transceiver<\/a>. Chuck kindly sent me a modification of the circuit that allowed for automatic T\/R. I see it also envisioned the use of a VFO. We are not sure if this version of the MXM transceiver ever made it to market, but it certainly would — in any case — be of interest to homebrewers. <\/b><\/div>\n

<\/b><\/div>\n
Chuck wrote: <\/b><\/div>\n

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Attached is a schematic I drew for Bruce almost <\/span><\/i><\/b>30 years ago with a program that I wrote. This is for the Simple Transceiver where Bruce and I worked out the solid state switch to replace the slide switches you have to use to switch between receive and transmit.<\/i><\/b><\/span><\/div>\n

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BTW. MXM stand for 1990, the year Bruce started his kit adventures. I worked Bruce on the first beta build of the transceiver Denton TX to Smithville TX on 40m during the day.<\/i><\/b><\/p>\n

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<\/div>\n<\/p>\n
Thanks a lot Chuck. <\/b><\/div><\/p>\n","protected":false},"excerpt":{"rendered":"

Click for a better view Esteemed Homebrew Hero Chuck Adams AA7FO saw me struggling with the T\/R switch on my hamfest-found MXM SupeRX\/TX transceiver. Chuck kindly sent me a modification of the circuit that allowed for automatic T\/R. I see it also envisioned the use of a VFO. We are not sure if this version … Continue reading “Chuck Adams’ Modification of the MXM Simple Transceiver — An Early QSO with the MXM Thirty Years Ago”<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":7675,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[118,264,87],"tags":[],"class_list":["post-7674","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-adams-chuck","category-homebrew-hero","category-qrp"],"_links":{"self":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/7674","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=7674"}],"version-history":[{"count":1,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/7674\/revisions"}],"predecessor-version":[{"id":7676,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/7674\/revisions\/7676"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/media\/7675"}],"wp:attachment":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/media?parent=7674"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/categories?post=7674"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/tags?post=7674"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}