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("Earth stations")
"C"-band Earth stations
Stations of the C-band are applied for work in satellite systems of
communication
in a mode of multistation access with frequency division (FDMA) via retransmitters in a geostationary orbit - "Raduga", "Gorizont", "Express",
LMI, Eutelsat and (or) in a demand assignment multiple access mode (DAMA):
The basic characteristics:
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Category frequency range, MHz
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transmission
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5925 - 6525
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receiving
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3600 - 4200
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| Antenna reflector diameter, m
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1,6; 2,5; 3,7; 5,0; 7,4; 9,3
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| Directional pattern
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meets to ITU requirements
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| Signal polarization
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circular
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| Transmitter power, W
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from 6 to 200
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| Modulation format
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QPSK, BPSK
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| Power supply
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220 V/50 Hz
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The detailed information - links to images on the right
Operation conditions:
| Equipment operation mode
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continuous, twenty-four-hour
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| Antenna's post и external equipment:
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| - temperature
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-50°C — +50°C
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| - maximum wind velocity when working
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up to 33 mps
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| - maximum wind velocity
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up to 50 mps
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| Internal equipment:
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| - temperature
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+5°С — +50°С
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Distance from antenna's post to internal equipment (length of the cables)
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to 200 m
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| Polus-SCC-1,6C
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| Polus-SCC-2,5C
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| Polus-SCC-3,7C
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| Polus-SCC-5C
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| Polus-SCC-7,4C
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