SeaSpace TeraScan 1.5M, Operation And Maintenance Manual

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166
SeaSpace Corporation
9.2 [12218004] F
EED
/LNA/D
OWNCONVERTER
, L-B
AND
, S-B
AND
L-Band: Specifications are the same as [12218002]
S-Band: (DMSP RTD, Windsat)
Preselector
Insertion Loss: 0.5dB
Passband: 2166 - 2315 MHz
-3dB: 2132 and 2350 MHz
-3dB bandwidth: 218 MHz
Center Frequency: 2240 MHz
Cell Phone Rejection: -80 dB @ 850 MHz
-50 dB @ 1800 MHz
LNA
Gain: 35 dB
Noise Figure: 0.9 dB
Four Pole Filter
Bandwidth: 2204 - 2285 MHz @ 1 dB
-3 dB bandwidth: 53 MHz:2199 - 2290
Center Frequency: 2244 MHz
Insertion Loss: 1.5 dB
Downconverter
Gain: 22 dB approx.
IF center frequency: 2237.5 MHz to 137.5 MHz
Tunable frequencies: 2237.5, 2252.5
IF frequency range: 89-170 MHz approx.
Noise figure: 18 dB
Local Oscillator: 2100 MHz
Supply Voltage: 10 - 15 VDC (power supplied on center conductor of IF coax)
Operating Temperature range: -40
°
C to -65
°
C
Overall:
Noise Figure: 1.4 - 1.5 dB
Gain: 55 dB
-3 dB bandwidth: 91 MHz
Unit Dimensions:
178 mm (7") diameter, 101mm (3.97") tall