{"id":538458,"date":"2018-10-24T09:11:48","date_gmt":"2018-10-24T13:11:48","guid":{"rendered":"http:\/\/amsat-uk.org\/?p=32462"},"modified":"2018-10-24T09:11:48","modified_gmt":"2018-10-24T13:11:48","slug":"lo-94-spacecraft-signal-decoded-after-bouncing-off-moon","status":"publish","type":"post","link":"https:\/\/spaceweekly.com\/?p=538458","title":{"rendered":"LO-94 spacecraft signal decoded after bouncing off Moon"},"content":{"rendered":"<p>&nbsp;<\/p>\n<div data-shortcode=\"caption\" id=\"attachment_32464\" style=\"width: 310px\" class=\"wp-caption alignright\"><a href=\"https:\/\/ukamsat.files.wordpress.com\/2018\/10\/image-of-moon-and-earth-taken-by-lo94-dslwp-b-credit-cees-bassa-2018-10-14.jpg\"><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"32464\" data-permalink=\"https:\/\/amsat-uk.org\/2018\/10\/24\/lo-94-spacecraft-signal-decoded-after-bouncing-off-moon\/image-of-moon-and-earth-taken-by-lo94-dslwp-b-credit-cees-bassa-2018-10-14\/\" data-orig-file=\"https:\/\/ukamsat.files.wordpress.com\/2018\/10\/image-of-moon-and-earth-taken-by-lo94-dslwp-b-credit-cees-bassa-2018-10-14.jpg\" data-orig-size=\"640,480\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Image of Moon and Earth taken by LO94 (DSLWP-B) &#8211; Credit Cees Bassa 2018-10-14\" data-image-description=\"&lt;p&gt;Image of Moon and Earth taken by LO94 (DSLWP-B) &#8211; Credit Cees Bassa 2018-10-14&lt;\/p&gt;\n\" data-medium-file=\"https:\/\/ukamsat.files.wordpress.com\/2018\/10\/image-of-moon-and-earth-taken-by-lo94-dslwp-b-credit-cees-bassa-2018-10-14.jpg?w=300&#038;h=225\" data-large-file=\"https:\/\/ukamsat.files.wordpress.com\/2018\/10\/image-of-moon-and-earth-taken-by-lo94-dslwp-b-credit-cees-bassa-2018-10-14.jpg?w=593\" class=\"wp-image-32464 size-medium\" src=\"https:\/\/ukamsat.files.wordpress.com\/2018\/10\/image-of-moon-and-earth-taken-by-lo94-dslwp-b-credit-cees-bassa-2018-10-14.jpg?w=300&#038;h=225\" alt=\"SSDV image of Moon and Earth taken by LO94 (DSLWP-B) - Credit Cees Bassa\" width=\"300\" height=\"225\" srcset=\"https:\/\/ukamsat.files.wordpress.com\/2018\/10\/image-of-moon-and-earth-taken-by-lo94-dslwp-b-credit-cees-bassa-2018-10-14.jpg?w=300&amp;h=225 300w, https:\/\/ukamsat.files.wordpress.com\/2018\/10\/image-of-moon-and-earth-taken-by-lo94-dslwp-b-credit-cees-bassa-2018-10-14.jpg?w=600&amp;h=450 600w, https:\/\/ukamsat.files.wordpress.com\/2018\/10\/image-of-moon-and-earth-taken-by-lo94-dslwp-b-credit-cees-bassa-2018-10-14.jpg?w=150&amp;h=113 150w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p class=\"wp-caption-text\">SSDV image of Moon and Earth taken by LO94 (DSLWP-B) &#8211; Credit Cees Bassa<\/p>\n<\/div>\n<p><a href=\"https:\/\/twitter.com\/ea4gpz\"  rel=\"noopener\"><strong>Daniel Est\u00e9vez EA4GPZ \/ M0HXM<\/strong><\/a> reports decoding a JT4G amateur radio signal from the LO-94 (DSLWP-B) spacecraft that was reflected off the Moon.<\/p>\n<p>Daniel says <em>&#8220;JT4G is a digital mode designed for Earth-Moon-Earth microwave communications, so it is tolerant to high Doppler spreads. However, the reflections of the [DSLWP-B] B0 transmitter at 435.4 MHz, which contained the JT4G transmissions, were very weak, so I had not attempted to decode the JT4G Moonbounce signal.&#8221;<\/em><\/p>\n<p>However, by analysing a recording made on October 19, 2018 at 17:53:35 GMT he was able to decode one of the five JT4G transmissions in the recording.<\/p>\n<p>Read his blog post at <a href=\"https:\/\/destevez.net\/2018\/10\/dslwp-b-jt4g-decoded-via-moonbounce\/\"  rel=\"noopener\">https:\/\/destevez.net\/2018\/10\/dslwp-b-jt4g-decoded-via-moonbounce\/<\/a><\/p>\n<p>Also see Geometry for DSLWP-B Moonbounce<br \/>\n<a href=\"https:\/\/destevez.net\/2018\/10\/geometry-for-dslwp-b-moonbounce\/\"  rel=\"noopener\">https:\/\/destevez.net\/2018\/10\/geometry-for-dslwp-b-moonbounce\/<\/a><\/p>\n<p>The DSLWP amateur radio satellites built by students from the Harbin Institute of Technology was launched to Lunar orbit on May 20, 2018<br \/>\n<a href=\"https:\/\/amsat-uk.org\/2018\/05\/19\/dslwp-satellites-lunar-orbit\/\"  rel=\"noopener\">https:\/\/amsat-uk.org\/2018\/05\/19\/dslwp-satellites-lunar-orbit\/<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>&nbsp; Daniel Est&eacute;vez EA4GPZ \/ M0HXM reports decoding a JT4G amateur radio signal from the LO-94 (DSLWP-B) spacecraft that was reflected off the Moon. Daniel says &ldquo;JT4G is a digital mode designed for Earth-Moon-Earth microwave communications, so it is tolerant &hellip; <a href=\"https:\/\/amsat-uk.org\/2018\/10\/24\/lo-94-spacecraft-signal-decoded-after-bouncing-off-moon\/\">Continue reading <span>&rarr;<\/span><\/a><\/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-538458","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\/538458","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=538458"}],"version-history":[{"count":2,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/538458\/revisions"}],"predecessor-version":[{"id":538460,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/538458\/revisions\/538460"}],"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=538458"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=538458"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=538458"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}