{"id":60,"date":"2026-04-18T22:20:41","date_gmt":"2026-04-19T02:20:41","guid":{"rendered":"https:\/\/www.ac0cw.net\/?p=60"},"modified":"2026-04-20T10:46:52","modified_gmt":"2026-04-20T14:46:52","slug":"ic-x71a-transceivers-and-related-projects","status":"publish","type":"post","link":"https:\/\/www.ac0cw.net\/index.php\/2026\/04\/18\/ic-x71a-transceivers-and-related-projects\/","title":{"rendered":"IC-x71A Transceivers and related projects"},"content":{"rendered":"<p>A couple of weeks ago, I was browsing the usual auction sites, and decided to see what IC-271A transceivers were going for these days, since mine is in pieces and I&#8217;m not sure I even have all of them anymore. I happened upon a unit going for a comparatively good price, reported at powering up, and no bids, so on impulse, I bid on it. Surprisingly enough, nobody else did, either. Anon, it arrived, and boy was I surprised&#8230;.<\/p>\n<p>Turns out it&#8217;s in really clean condition, the RAM board has a good battery, the power out is good, and, when I got around to finally hooking it up to the antenna (and rewiring the connector in my Kenwood MC-80 desk mic) it got really good signal reports. And, even more surprisingly, I was delighted to find that it included the optional power supply unit powered by mains,\u00a0<em>and<\/em> the optional preamp unit!<\/p>\n<p>So, I got it on the air and I&#8217;ve been using it for the local 2-meter nets. And I got to thinking&#8230; I&#8217;ve always (literally always, since I found out about ham radio in middle school, but that&#8217;s another story&#8230;) always wanted to work satellites, and a 2-meter and 70-centimeter combo would work nicely for that. So I poked around the auction sites again, this time for an IC-471A, and managed to find one of those, too! It was not so clean (it needed a good scrubbing) and it didn&#8217;t have the fun options, but it does work, as well. I&#8217;ll need to adjust my antenna, as the radio is putting out less than expected power, and the antenna is also exhibiting SWR ripples, perhaps due to the 10-meter antenna mounted inches from it on the mast. Most likely I&#8217;ll be taking that down and replacing it with an inverted-V.<\/p>\n<p>Next step is constructing a diplexer so I can connect both radios at once. Also, I&#8217;ve begun working on an Arduino interface to computer-control the radios. But again, that&#8217;s another post.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A couple of weeks ago, I was browsing the usual auction sites, and decided to see what IC-271A transceivers were going for these days, since mine is in pieces and I&#8217;m not sure I even have all of them anymore. I happened upon a unit going for a comparatively good price, reported at powering up, [&hellip;] <a class=\"read-more\" href=\"https:\/\/www.ac0cw.net\/index.php\/2026\/04\/18\/ic-x71a-transceivers-and-related-projects\/\" title=\"Permanent Link to: IC-x71A Transceivers and related projects\">&rarr;Read&nbsp;more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16,15],"tags":[21,17,18,22,20,19],"class_list":["post-60","post","type-post","status-publish","format-standard","hentry","category-boatanchors","category-vhf-uhf","tag-boatanchors","tag-ic-281","tag-ic-471","tag-transceivers","tag-uhf","tag-vhf"],"_links":{"self":[{"href":"https:\/\/www.ac0cw.net\/index.php\/wp-json\/wp\/v2\/posts\/60","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ac0cw.net\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ac0cw.net\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ac0cw.net\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ac0cw.net\/index.php\/wp-json\/wp\/v2\/comments?post=60"}],"version-history":[{"count":4,"href":"https:\/\/www.ac0cw.net\/index.php\/wp-json\/wp\/v2\/posts\/60\/revisions"}],"predecessor-version":[{"id":64,"href":"https:\/\/www.ac0cw.net\/index.php\/wp-json\/wp\/v2\/posts\/60\/revisions\/64"}],"wp:attachment":[{"href":"https:\/\/www.ac0cw.net\/index.php\/wp-json\/wp\/v2\/media?parent=60"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ac0cw.net\/index.php\/wp-json\/wp\/v2\/categories?post=60"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ac0cw.net\/index.php\/wp-json\/wp\/v2\/tags?post=60"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}