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StarGuide Digital Networks
6.3
Mechanical/Electrical Specification
Dimensions
Height: 8.7 cm
Width: 48.2 cm
Depth: 28.6 cm
rack mountable (2RU)
Weight
5.9 kg (13 lbs)
Input voltage
90 VAC to 264 VAC, 47 Hz to 63 Hz
Power consumption
48 W maximum
6.4
Environmental Specifications
Temperature
operating: 0
°
C to +50
°
C
gradient: 2
°
C/minute
storage: -20
°
C to +70
°
C
Humidity
operating: 5% to 95% noncondensing
storage: 0% to 100% noncondensing
6.5
Demodulator Specification
The demodulator receives input at L-band and provides base band data to the demultiplexer.
L-band input frequency range
920 - 2020 MHz
Impedance
75
Ω
Minimum Return Loss
8 dB
Power Levels
-20 dBm to -80 dBm
Input Noise Figure
12 dB maximum at minimum input level
Maximum Composite Input level
0 dBm
Acquisition Frequency Uncertainty
±
2 MHz
Connector
“F” type
Demodulation type
QPSK
Data rate
512 kbps to 25 Mbps
FEC Decoding
Concatenated code
Viterbi rates: 1/2, 2/3, 3/4, 4/5, 5/6, 7/8
Reed-Solomon 187/204
Descrambling
CCITT V.35
Summary of Contents for StarGuide III
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