{"id":246755,"date":"2016-12-07T15:52:24","date_gmt":"2016-12-07T19:52:24","guid":{"rendered":"http:\/\/amsat-uk.org\/?p=30935"},"modified":"2016-12-07T15:52:24","modified_gmt":"2016-12-07T19:52:24","slug":"cas-4a-and-cas-4b-to-have-ham-radio-linear-transponders","status":"publish","type":"post","link":"https:\/\/spaceweekly.com\/?p=246755","title":{"rendered":"CAS-4A and CAS-4B to have Ham Radio Linear Transponders"},"content":{"rendered":"<div data-shortcode=\"caption\" id=\"attachment_30937\" style=\"width: 310px\" class=\"wp-caption alignright\"><a href=\"https:\/\/ukamsat.files.wordpress.com\/2016\/12\/xw-2a-launched-2015-09-19.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-30937\" src=\"https:\/\/ukamsat.files.wordpress.com\/2016\/12\/xw-2a-launched-2015-09-19.jpg?w=300&#038;h=298\" alt=\"XW-2A satellite launched September 19, 2015\" width=\"300\" height=\"298\" srcset=\"https:\/\/ukamsat.files.wordpress.com\/2016\/12\/xw-2a-launched-2015-09-19.jpg?w=300&amp;h=298 300w, https:\/\/ukamsat.files.wordpress.com\/2016\/12\/xw-2a-launched-2015-09-19.jpg?w=600&amp;h=596 600w, https:\/\/ukamsat.files.wordpress.com\/2016\/12\/xw-2a-launched-2015-09-19.jpg?w=150&amp;h=150 150w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p class=\"wp-caption-text\">XW-2A satellite was launched September 19, 2015<\/p>\n<\/div>\n<p>CAMSAT is working closely with a Beijing Government aerospace contractor to build two satellites with amateur radio linear transponder payloads.<\/p>\n<p>Both will carry a 435\/145 (U\/V) 20 dBm (100 milliwatt) SSB\/CW linear transponder, a 2m CW 17 dBm (50 mW) telemetry beacon and an AX.25 4.8 kbps GMSK 20 dBm (100 mW) telemetry downlink.<\/p>\n<p>Each set of amateur radio equipment will have the same technical characteristics, but will have different frequencies for the 70cm band uplinks and 2m band downlinks.<\/p>\n<p>The two micro-satellites will also carry optical remote sensing missions. Planned to be 494x499x630 mm dimension regular square shape and approximately 50 kg mass with three-axis stabilization system.<\/p>\n<p>Expecting a launch from Taiyuan on March 31, 2017 into a 524 km SSO with an inclination of 42 degrees.<\/p>\n<p>IARU Satellite Frequency Coordination pages <a href=\"http:\/\/www.amsat.org.uk\/iaru\/\" >http:\/\/www.amsat.org.uk\/iaru\/<\/a><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" border=\"0\" src=\"https:\/\/pixel.wp.com\/b.gif?host=amsat-uk.org&#038;blog=41081109&#038;%23038;post=30935&#038;%23038;subd=ukamsat&#038;%23038;ref=&#038;%23038;feed=1\" width=\"1\" height=\"1\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>CAMSAT is working closely with a Beijing Government aerospace contractor to build two satellites with amateur radio linear transponder payloads. Both will carry a 435\/145 (U\/V) 20 dBm (100 milliwatt) SSB\/CW linear transponder, a 2m CW 17 dBm (50 mW) &hellip; <a href=\"https:\/\/amsat-uk.org\/2016\/12\/07\/cas-4a-cas-4b-transponder-sats\/\">Continue reading <span>&rarr;<\/span><\/a><img loading=\"lazy\" decoding=\"async\" alt=\"\" border=\"0\" src=\"https:\/\/pixel.wp.com\/b.gif?host=amsat-uk.org&amp;blog=41081109&amp;post=30935&amp;subd=ukamsat&amp;ref=&amp;feed=1\" width=\"1\" height=\"1\"><\/p>\n","protected":false},"author":51,"featured_media":615444,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[15],"tags":[],"class_list":["post-246755","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-AMSAT"],"_links":{"self":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/246755","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/users\/51"}],"replies":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=246755"}],"version-history":[{"count":4,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/246755\/revisions"}],"predecessor-version":[{"id":253433,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/246755\/revisions\/253433"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/media\/615444"}],"wp:attachment":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=246755"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=246755"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=246755"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}