{"id":31,"date":"2015-10-04T18:34:00","date_gmt":"2015-10-04T18:34:00","guid":{"rendered":"https:\/\/geekblog.febo.com\/wp\/?p=31"},"modified":"2015-11-22T00:10:41","modified_gmt":"2015-11-22T00:10:41","slug":"an-interface-from-hermesanan-to-the-tass-relay-board","status":"publish","type":"post","link":"https:\/\/blog.febo.com\/?p=31","title":{"rendered":"An interface from Hermes\/ANAN to the TASS relay board"},"content":{"rendered":"<p>I didn&#8217;t even think of it when I was designing the <a title=\"TASS relay switch system\" href=\"http:\/\/tapr.org\/kits_tass.html\">TASS-R relay switch system<\/a>, but the relay board can be used with an HPSDR <a title=\"Hermes\" href=\"http:\/\/openhpsdr.org\/hermes.php\">Hermes<\/a>, <a title=\"ANAN-10\" href=\"https:\/\/apache-labs.com\/al-products\/1030\/ANAN-10-HF---6M-10W-All-Mode-Transceiver.html\">ANAN-10<\/a>, or <a title=\"ANAN-100\" href=\"https:\/\/apache-labs.com\/al-products\/1027\/ANAN-100D-HF---6M-100W-ALL-MODE-SDR-TRANSCEIVER.html\">ANAN-100\/200<\/a> radio without requiring use of an Arduino or other controller.\u00c2\u00a0 These radios provide 7 open collector outputs that can be programmed from within the PowerSDR software.\u00c2\u00a0 A simple interface board allows the TASS-R to be controlled by these outputs.<\/p>\n<p>The idea is that two of the outputs can be used as binary bits to control one half of a decoder chip (74HC139) that will drive 4 of the TASS-R&#8217;s relays.\u00c2\u00a0 Two more outputs fed to the other half of the chip can drive the other 4.\u00c2\u00a0 If you want to control the branching relay (&#8220;K9&#8221;) a fifth output can be used for that with a simple transistor inverter.<\/p>\n<p>This setup would allow you to switch up to four filters\/preamps\/ in a double pole configuration, based on the band selected in PowerSDR.\u00c2\u00a0 Or up to 8 receive antennas could automatically be selected.\u00c2\u00a0 Or whatever else you&#8217;d like to do.<\/p>\n<p>Here&#8217;s a schematic for such a board.\u00c2\u00a0 I haven&#8217;t built it yet, but it *should* work.<\/p>\n<p><a href=\"http:\/\/blog.febo.com\/wp-content\/uploads\/2015\/10\/anan-tass_interface_rev_a_schem.png\" data-rel=\"penci-gallery-image-content\" ><img decoding=\"async\" class=\"alignnone size-medium wp-image-39\" src=\"http:\/\/blog.febo.com\/wp-content\/uploads\/2015\/10\/anan-tass_interface_rev_a_schem-300x224.png\" alt=\"anan-tass_interface_rev_a_schem\" width=\"300\" height=\"224\" srcset=\"https:\/\/blog.febo.com\/wp-content\/uploads\/2015\/10\/anan-tass_interface_rev_a_schem-300x224.png 300w, https:\/\/blog.febo.com\/wp-content\/uploads\/2015\/10\/anan-tass_interface_rev_a_schem-1024x764.png 1024w, https:\/\/blog.febo.com\/wp-content\/uploads\/2015\/10\/anan-tass_interface_rev_a_schem.png 1477w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>I didn&#8217;t even think of it when I was designing the TASS-R relay switch system, but the relay board can be used with an HPSDR Hermes, ANAN-10, or ANAN-100\/200 radio&hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"","_lmt_disable":"","ngg_post_thumbnail":0,"footnotes":""},"categories":[4,5,7],"tags":[],"class_list":["post-31","post","type-post","status-publish","format-standard","hentry","category-ham-radio","category-tapr-projects","category-test-and-lab-equipment"],"_links":{"self":[{"href":"https:\/\/blog.febo.com\/index.php?rest_route=\/wp\/v2\/posts\/31","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.febo.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.febo.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.febo.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.febo.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=31"}],"version-history":[{"count":5,"href":"https:\/\/blog.febo.com\/index.php?rest_route=\/wp\/v2\/posts\/31\/revisions"}],"predecessor-version":[{"id":40,"href":"https:\/\/blog.febo.com\/index.php?rest_route=\/wp\/v2\/posts\/31\/revisions\/40"}],"wp:attachment":[{"href":"https:\/\/blog.febo.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=31"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.febo.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=31"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.febo.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=31"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}