{"id":191,"date":"2013-12-15T13:12:12","date_gmt":"2013-12-15T12:12:12","guid":{"rendered":"http:\/\/www.eb3frn.net\/?p=191"},"modified":"2013-12-16T09:35:37","modified_gmt":"2013-12-16T08:35:37","slug":"successfull-reception-of-the-yutu-landing","status":"publish","type":"post","link":"https:\/\/www.eb3frn.net\/?p=191","title":{"rendered":"Successful reception of the Yutu landing"},"content":{"rendered":"

Yesterday the Chang’e3<\/a> spacecraft andt the Yutu rover was landing successfuly. I was start to track the moon since the 18:30 to the 22:30 UTC. And I was listen Yutu from the start of my window and the signal was over 15dB of SN at 1Hz of BW.\u00a0 The frequency of the rover is 8462.08000MHz with the moon doppler of -0.6Hz\/s of aprox. The signal was easy to listen in the earphones, and sounds like a some kind of morse.<\/p>\n

For this event I was setup two receivers, as main a AOR AR5000 and Rfspace<\/a> SDR14. As second receiver a rtl-sdr<\/a> doongle with r820t tuner and baudline<\/a>.<\/p>\n

\"Yutu<\/a>

Yutu rover, using AR5000 + SDR14<\/p><\/div>\n

\"Yutu<\/a>

Yutu rover using rtl-sdr + baudline<\/p><\/div>\n

The command line to use rtlsdr with baudline was:<\/p>\n

rtl_fm -g 44 -d0 -f$1 -s 250000 -F -U | .\/baudline.static -stdin -samplerate 250000 -channels 1 -session rtlsdr1chUSB0 -basefrequency $1<\/p>\n

\"Yutu<\/a>

Yutu rover using rtlsdr + baudline<\/p><\/div><\/blockquote>\n

Now you can listen how sounds the data stream from Yutu. A short audio record of the signal demodulated:<\/p>\n\nhttps:\/\/www.eb3frn.net\/wp-content\/uploads\/2013\/12\/change3demod_20131214_211605.wav<\/a><\/audio>\n","protected":false},"excerpt":{"rendered":"

Yesterday the Chang’e3 spacecraft andt the Yutu rover was landing successfuly. I was start to track the moon since the 18:30 to the 22:30 UTC. And I was listen Yutu from the start of my window and the signal was over 15dB of SN at 1Hz of BW.\u00a0 The frequency of the rover is 8462.08000MHz […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"spay_email":"","jetpack_publicize_message":"","jetpack_is_tweetstorm":false,"jetpack_publicize_feature_enabled":true},"categories":[8,1,7,3],"tags":[],"jetpack_featured_media_url":"","jetpack_publicize_connections":[],"jetpack_shortlink":"https:\/\/wp.me\/p31CYx-35","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.eb3frn.net\/index.php?rest_route=\/wp\/v2\/posts\/191"}],"collection":[{"href":"https:\/\/www.eb3frn.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.eb3frn.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.eb3frn.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.eb3frn.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=191"}],"version-history":[{"count":9,"href":"https:\/\/www.eb3frn.net\/index.php?rest_route=\/wp\/v2\/posts\/191\/revisions"}],"predecessor-version":[{"id":209,"href":"https:\/\/www.eb3frn.net\/index.php?rest_route=\/wp\/v2\/posts\/191\/revisions\/209"}],"wp:attachment":[{"href":"https:\/\/www.eb3frn.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=191"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.eb3frn.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=191"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.eb3frn.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=191"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}