{"id":9534,"date":"2011-04-30T18:20:00","date_gmt":"2011-04-30T08:20:00","guid":{"rendered":"https:\/\/www.homebrewradio.us\/blog\/2011\/04\/30\/working-on-t-r-circuit-for-hb-wspr-rig-need-help\/"},"modified":"2011-04-30T18:20:00","modified_gmt":"2011-04-30T08:20:00","slug":"working-on-t-r-circuit-for-hb-wspr-rig-need-help","status":"publish","type":"post","link":"https:\/\/www.homebrewradio.us\/blog\/2011\/04\/30\/working-on-t-r-circuit-for-hb-wspr-rig-need-help\/","title":{"rendered":"Working on T\/R circuit for HB WSPR rig &#8211;need help!"},"content":{"rendered":"<p><span style=\"font-size:130%;\"><span style=\"font-weight: bold;\">I&#8217;m finally working on the PTT T\/R circuit for my homebrew DSB \/Direct conversion 30 meter transceiver. I hope to use the simple one transistor circuit from W3PM&#8217;s FB HB WSPR rig. <\/span><\/p>\n<p><span style=\"font-weight: bold;\">But I need info on the PTT signal that will come from the computer serial port. Which pins on the 9 pin serial port connector? What kind of signal comes out? Is it 5 volts on transmit? What settings should I use in WSPR? RTS? Any other setting changes needed? <\/span><\/p>\n<p><span style=\"font-weight: bold;\">I hope to be transmitting AND receiving soon. <\/span><\/p>\n<p><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>I&#8217;m finally working on the PTT T\/R circuit for my homebrew DSB \/Direct conversion 30 meter transceiver. I hope to use the simple one transistor circuit from W3PM&#8217;s FB HB WSPR rig. But I need info on the PTT signal that will come from the computer serial port. Which pins on the 9 pin serial &hellip; <a href=\"https:\/\/www.homebrewradio.us\/blog\/2011\/04\/30\/working-on-t-r-circuit-for-hb-wspr-rig-need-help\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Working on T\/R circuit for HB WSPR rig &#8211;need help!&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26],"tags":[],"class_list":["post-9534","post","type-post","status-publish","format-standard","hentry","category-wspr"],"_links":{"self":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/9534","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\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/comments?post=9534"}],"version-history":[{"count":0,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/9534\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/media?parent=9534"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/categories?post=9534"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/tags?post=9534"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}