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Techniques to Minimize Adjacent Band Emissions from Earth Exploration Satellites to Protect the Deep-Space Earth Station

EESS Adjacent Band Emissions. 2. Introduction. The 8025-8400 MHz band used by EESS satellites for downlink data is adjacent to the 8400-8450 MHz band used by deep-space missions for downlinks The 8400-8450 MHz band is vital to deep-space missions and is extensively usedBy the end of 2005, 19 deep

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Techniques to Minimize Adjacent Band Emissions from Earth Exploration Satellites to Protect the Deep-Space Earth Station

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    1. Techniques to Minimize Adjacent Band Emissions from Earth Exploration Satellites to Protect the Deep-Space Earth Stations in the 8400-8450 MHz Band EESS X-band Workshop Toulouse, France June 22-24, 2005 Farzin Manshadi, Charles C. Wang and Miles K. Sue NASA/JPL

    2. EESS Adjacent Band Emissions 2 Introduction The 8025-8400 MHz band used by EESS satellites for downlink data is adjacent to the 8400-8450 MHz band used by deep-space missions for downlinks The 8400-8450 MHz band is vital to deep-space missions and is extensively used By the end of 2005, 19 deep space missions will be using this band Adjacent band emissions from EESS satellites can interfere with the sensitive deep space earth stations A protection criterion of -221 dBW/Hz is established by the ITU-R (SA. 1157) to protect the deep-space Earth stations In 2003, SFCG Action Item 23-14 was created to explore technical and operational techniques that an EESS satellite can employ to minimize its adjacent band emission levels and protect the deep-space earth stations

    3. EESS Adjacent Band Emissions 3 Examples of Potential EESS Interference to a Deep-Space Earth

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