{"id":240158,"date":"2016-03-25T09:12:50","date_gmt":"2016-03-25T13:12:50","guid":{"rendered":"http:\/\/amsat-uk.org\/?p=28536"},"modified":"2016-03-25T09:12:50","modified_gmt":"2016-03-25T13:12:50","slug":"funcube-transponder-on-eo-79-active","status":"publish","type":"post","link":"https:\/\/spaceweekly.com\/?p=240158","title":{"rendered":"FUNcube transponder on EO-79 active"},"content":{"rendered":"
\"QB50p1<\/p>\n

EO-79 and EO-80 – Image Credit ISIS<\/p>\n<\/div>\n

On March 25, 2016, the EO-79 SB\/CW transponder was activated and will be available for a prolonged period.<\/p>\n

The FUNcube transponder subsystem on QB50p1 (EO-79) had been provided by AMSAT-UK and AMSAT-NL and is a similar subsystem as on FUNcube-1, but without the telemetry downlink circuitry.<\/p>\n

The current software running on EO-79 does experience occasional reboots. When these reboots happen, the transponder is automatically turned off and will have to be turned back on by a command station. The FUNcube team has selected a few command stations to do so, but be advised the transponder may be off.<\/p>\n

TLEs:
\nAMSAT keps name: EO-79
\nCelestrak keps Name: QB50P1
\nCelestrak file: cubesat.txt
\nNORAD #\u00a0\u00a0\u00a0 40025
\nCOSPAR designator\u00a0\u00a0\u00a0 2014-033-R<\/p>\n

Frequencies:
\nUplink: 435.035-435.065 MHz LSB
\nDownlink: 145.935-145.965 MHz USB<\/p>\n

EO-79 has been set to only beacon the normal AX.25 beacon every 30 seconds instead of 10 seconds. The beacon frequency is 145.815 MHz and consists of AX.25 frames on BPSK. more details about the downlink can be found on the ISIS HAM page at http:\/\/isispace.nl\/HAM\/qb50p.html<\/a><\/p>\n

Just like FUNcube-1, the crystal oscillator circuits exhibit drift with temperature. This means manual tuning will probably work best.<\/p>\n

Lastly, the commanding team availability will be limited over Easter, so please report the transponder being on or off on the status page of AMSAT: http:\/\/www.amsat.org\/status\/<\/a>
\nIt does not appear in the table, but it does in the reporting drop-down.<\/p>\n

73 and have FUN<\/p>\n

Wouter Weggelaar, PA3WEG
\nAMSAT-NL
\nAMSAT-UK<\/p>\n

2013 QB50 Precursor CubeSat announcement
\nhttp:\/\/amsat-uk.org\/2013\/07\/20\/qb50-amateur-radio-transponder-payloads-to-launch-2014\/<\/a><\/p>\n

\"\"<\/p>\n","protected":false},"excerpt":{"rendered":"

On March 25, 2016, the EO-79 SB\/CW transponder was activated and will be available for a prolonged period. The FUNcube transponder subsystem on QB50p1 (EO-79) had been provided by AMSAT-UK and AMSAT-NL and is a similar subsystem as on FUNcube-1, … Continue reading →<\/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-240158","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\/240158","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=240158"}],"version-history":[{"count":4,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/240158\/revisions"}],"predecessor-version":[{"id":240418,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/240158\/revisions\/240418"}],"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=240158"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=240158"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=240158"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}