TYPICAL LINKBUDGET
(rem: source data are represented in italic blue format)
Transponder center frequency (fo) (GHz) 14,2 12,0
RF bandwidth (Mhz) 30,0 30,0
Symbol rate (1/T) (ks/s) 27500,0 27500,0
GROUND STATION
Antenna diameter (m) 6,0 0,9
Antenna efficiency % 60,0 55,0
Maximum antenna effective aperture area (m2) 17,0 0,3
Maximum antenna gain (dB) 56,8 38,0
Antenna half power beamwidth (deg) 0,2 2,1
Antenna gain (GT(u)) (dB) 56,8 38,0
Transmitted power per carrier (PT) (W) 5,0
(dBW) 7,0
Receiver noise figure (FR) (dB) 1,2
Receiver effective input noise temperature (TE) (K) 92,3
Antenna spectral noise temperature (TA) (K) 125,0
System spectral noise temperature (TR) (dBK) 23,4
Ground station EIRP per carrier (PTGT(u)) (dBW) 63,8
Ground station G/T (GR(-u)/TR) (dB/K) 14,6
CHANNEL
Distance (z) (km) 38500,0 38500,0
Free-space path loss ((L/4pz)2) (dB) -207,2 -205,7
Atmospheric attenuation (A(z)) (dB) -5,0 -2,5
Power flux density at satellite (dBW/m2) -103,9
Power flux density at ground (dBW/m2) -117,8
Spot diameter at ground (km) 979,9
Channel attenuation (dB) -212,2 -208,2
SATELLITE
Antenna diameter (m) 0,3 1,2
Antenna efficiency % 55,0 60,0
Maximum antenna effective aperture area (m2) 0,0 0,7
Maximum antenna gain (dB) 30,4 41,3
Antenna half power beamwidth (deg) 4,9 1,5
Receiving antenna gain (GR(-u)) (dB) 30,4 41,3
Transmitted power per carrier (PT) (W) 4,0
(dBW) 6,0
Receiver noise figure (FR) (dB) 1,2
Receiver effective input noise temperature (TE) (K) 92,3
Antenna spectral noise temperature (TA) (K) 250,0
System spectral noise temperature (TR) (dBK) 25,3
Satellite EIRP per carrier (PTGT(u)) (dBW) 47,4
Satellite G/T (GR(-u)/TR) (dB/K) 5,0
SIGNAL TO NOISE RATIO
Carrier to noise PSD ratio (dBHz) 85,2 82,3
Carrier to noise ratio (dB) 10,5 7,6
Carrier to interference ratio (dB) 28,0 18,0
Satellite carrier to intermodulation ratio (dB) 50,0
E2E carrier to noise ratio (C/N) (dB) 5,5
E2E symbol energy to noise PSD ratio (Es/No) (dB) 5,9
