9797B-70 C-Band TXRX
9797B-70 Technical Specifications
8-1
8.
9797B-70 Technical Specifications
The technical specifications for your Series 97B Above Decks Equipment subsystems are listed below: Refer to your ACU
manual for its’ Specifications.
8.1.
Antenna Reflector
Type
Honeycomb Fiberglass Parabola
Diameter (D)
2.4 Meter Modified Offset
Sidelobe:
Compliant with Intelsat Standard G
Voltage Axial Ratio:
1.3:1, maximum, Receive Band
1.09:1, maximum, Transmit Band
Focal Length
38 in
f/D 0.245
RX Gain
38.5 dBi at 3.95 GHz
47.75 dBi at 11.85 GHz
TX Gain
41.7 dBi at 6.18 GHz
48.45 dBi at 14.25 GHz
8.2.
Feed Assemblies
8.2.1.
C-Band TXRX Feed Assembly
Type Prime
focus
Transmit frequency
5.9-6.4 GHz C Band
Receive frequency
3.7-4.2 GHz C Band
Polarization
Linear or Circular
VSWR :
1.3:1
Polang control
24 volt DC motor with position feedback for Linear Feed. None for
Circular Feed
LNB/LNC Gain & Noise Figure
Refer to RF Equipment vendor manual(s)
8.3.
RF Equipment
C-Band Block Up-Converter
Codan model 67xx, 25 Watt (optional 40W) C-Band MBUC,
Standard or Extended band with waveguide output
C-Band LNB
Norsat model 3000 C-Band PLL LNB
Noise Temperature
20K to 30K
Gain
55dB min to 70 dB max
Input Frequency Range
3.40-4.20 GHz
Local Oscillator Frequency
5.15 GHz (sta/- 5kHz to +/- 25kHz depending on model)
Output Frequency Range
950-1750 MHz
8.4.
Norsat 3000 Series C-Band LNB
Noise temperature maximum
15K to 35K
L.O. stability maximum
±5 kHz to ±25 kHz
Phase noise
-73 dBc/Hz at 1 kHz, -83 dBc/Hz at 10 kHz, -93 dBc/Hz at 100 kHz
Conversion gain
55 dB min, 70 dB max
Power requirements
+15 to +24 V supplied through center conductor of IF cable
Input frequency (GHz)
3.40 to 4.20 GHz
L.O. frequency (GHz)
5.15 GHz
Содержание 9797B-70 C-Band TX/RX
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