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MarconISSta Offering One Last Chance to Test UHF Antennas:

from The ARRL Letter on February 7, 2019
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MarconISSta Offering One Last Chance to Test UHF Antennas:

The MarconISSta experiment on the Amateur Radio on the International Space Station (ARISS Columbus module station will be decommissioned on Saturday, February 9, about 3 weeks earlier than anticipated. MarconISSta is a radio spectrum analyzer on the ISS that monitors parts of the RF spectrum in VHF, UHF, L, and S bands in order to analyze current use and availability for satellite communication.

The project is conducted by a team of researchers and students from Technische Universitšt Berlin, with support of the German Aerospace Center, the European Space Agency, ARISS, and other partners. MarconISSta engineers are inviting anyone with a UHF antenna who can generate at least 30 dBW EIRP to attempt transmitting to the ISS. MarconISSta will record and publish all transmissions copied. Successful tests have been carried out with 50 W and 15 dBi antenna gain.

Whenever the ISS is within range, transmit between 435 and 438 MHz, avoiding 435.95 MHz in Europe and 436.5 MHz (the receiver's center frequency). Transmit a continuous carrier and do not employ Doppler shift correction. Read more


The ARRL Letter

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