Flavio, We upload programm command to the satellite when the satellite pass Chinese airspace, and then the satellite act the order at appropriated time.
73 Alan, BA1DU ----- Original Message ----- From: "PY2ZX" <py2zx....@gmail.com> To: <amsat-bb@amsat.org> Cc: <hear...@mailman.qth.net> Sent: Tuesday, December 22, 2009 11:06 PM Subject: [amsat-bb] HO-68 (changing modes, commands) > Hello, > > On the weekend, during one of the XW-1/HO-68 passes schedulle for change > the "beacon/TLM only" to "beacon/TLM + FM repeater" mode, It was clear > the temporarily interruption of TLM data flow for their quickly return > from the beggining of the TLM frame with new status, exactly on the time > combined. So CE3RR was well heard in FM downlink. > > My neophyte question is: The satellite was over Chile that time. Do we > need an earth ground station in South America, inside the footprint of > the satellite, to send the operational changing command to the bird for > HO-68 real time answer to the request or only the Chinese controler sent > the command, for satellite store the information and, at appropriated > time, far way from Asian footprint, HO-68 active the ordered? > > Flavio PY2ZX > > > > > _______________________________________________ > Sent via amsat...@amsat.org. Opinions expressed are those of the author. > Not an AMSAT-NA member? Join now to support the amateur satellite program! > Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb > > _______________________________________________ Sent via amsat...@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
