Shiro ADSL 2/2+ Ethernet Modem Manual do Utilizador descarregar pdf (Página 427)

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Propagation time delay 0.130279 0.127069 seconds

Antenna efficiency 76.47 86.43 %

Antenna gain 41.70 52.90 dBi

Availability (average year) 99.9 99.9 %

Link downtime (average year) 8.766 8.766 hours

Availability (worst month) 99.615 99.615 %

Link downtime (worst month) 2.809 2.809 hours

Spectral power density -48.28 -24.85 dBW/Hz

Uplink Calculation Clear Rain Up Rain Dn Units

Uplink transmit EIRP 46.22 46.22 46.22

dBW

Transponder input back-off (total) 10.00 10.00 10.00

Input back-off per carrier 23.53 25.55 23.53 dB

Mispoint loss 0.30 0.30 0.30 dB

Free space loss 207.09 207.09 207.09 dB

Atmospheric absorption 0.16 0.16 0.16 dB

Tropospheric scintillation fading 0.46 0.46 0.46

Atmospheric losses total 0.63 0.63 0.63 dB

Total path loss (excluding rain) 207.72 207.72 207.72 dB

Rain attenuation 0.00 2.02 0.00 dB

Uplink power control 0.00 0.00 0.00

Uncompensated rain fade 0.00 2.02 0.00 dB

C/No (thermal) 71.30 69.28 71.30 dB.Hz

C/N (thermal) 18.50 16.48 18.50 dB

C/ACI 60.00 57.98 60.00 dB

C/ASI 30.00 27.98 30.00 dB

C/XPI 30.00 27.98 30.00 dB

C/IM 60.00 60.00 60.00 dB

Eb/(No+Io) 16.64 14.62 16.64 dB

Downlink Calculation Clear Rain Up Rain Dn

Units

Satellite EIRP total 48.00 48.00 48.00

dBW

Transponder output back-off (total) 6.52 6.52 6.52

Output back-off per carrier 20.05 22.08 20.05

Satellite EIRP per carrier 27.95 25.92 27.95 dBW

Mispoint loss 0.30 0.30 0.30 dB

Free space loss 205.83 205.83 205.83 dB

Atmospheric absorption 0.09 0.09 0.09 dB

Tropospheric scintillation fading 0.21 0.21 0.21

Atmospheric losses total 0.30 0.30 0.30 dB

Total path loss (excluding rain) 206.13 206.13 206.13 dB

Rain attenuation 0.00 0.00 1.02 dB

Noise increase due to precipitation 0.00 0.00 1.41

Downlink degradation (DND) 0.00 0.00 2.43 dB

Total system noise 130.39 130.39 180.31 K

Figure of merit (G/T) 30.95 30.95 29.54

dB/K

C/No (thermal) 81.36 79.34 78.94 dB.Hz

C/N (thermal) 28.56 26.54 26.14 dB

C/ACI 60.00 57.98 60.00 dB

C/ASI 30.00 27.98 30.00 dB

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Shiro ADSL 2/2+ Ethernet Modem Manual do Utilizador Página 427

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