System information

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.
Type Prime focus
C-Band TXRX Feed Assembly
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 (stability +/- 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