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AO-85 carries a U/V FM repeater operating at up to 800mw. Uplink was planned for 435.180, but initial reports indicate it may be closer to 435.172 due to unforeseen temperature differences. Repeater access requires the satellite to receive a 67.0 Hz PL tone for two seconds. If the satellite does not receive a signal carrying a 67.0 Hz PL tone, the repeater will turn off after one minute. When the repeater is not activated by a signal carrying the PL tone, a voice beacon is transmitted every two minutes. Downlink is 145.980 and includes Data Under Voice (DUV) FSK telemetry simultaneous with repeater operation. A high speed data downlink at 9600 bps is available for experiment and high resolution data. In addition to the amateur operations, there are a number of scientific experiments on board the spacecraft. Vanderbilt University is providing a Low Energy Proton radiation experiment, and Penn State University V Erie a gyroscope experiment.
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AMSAT-NA Facebook GroupJerry Buxton 9 hours ago
NASA TV coverage of the JPSS-1 launch carrying the ELaNa XIV mission and RadFxSat/Fox-1B.
nasa.gov The Joint Polar Satellite System-1 (JPSS-1), the first in a new series of four highly advanced NOAA polar-orbiting satellites, which will help increase weather forecast accuracy from three to seven days out, is scheduled to launch on Friday, Nov. 10, from Vandenberg Air Force Base, California.
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Selwyn Cathcart 9 hours ago
Hello All,
Hope someone in our community can assist me?
I am seeking a download location for a WIN 10 version of the satellite tracking programme called SimpleSat by Tom Doyle.
There is another satellite tracking application also written by Tome Doyle called SimpleSat Look Down, however I am not too sure if there is a version of this application able to run on a Win 10 platform?
Any help is very welcome.
Regards from down under.
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Michael Johnson 13 hours ago
mwrf.com Growing use of satellites for communications, navigation, weather, and other functions is boosting the demand for active and passive components.
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發表於 11-10-2017 13:40:14
