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Mars Express Path Loss Calculator |
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by Charlie Suckling G3WDG |
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F/GHz |
D/AU |
Distance |
Path Loss |
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8.4 |
1.06 |
1.59E+08 |
km |
274.9 |
dB |
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Rx Dish Dia/m |
Efficiency/% |
Gain |
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3 |
70 |
46.9 |
dB |
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TX Dish Dia/m |
Efficiency/% |
Gain |
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2.2 |
53 |
43.0 |
dB |
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RX NF/dB |
Tant/K |
Tsys/K |
RX BW/Hz |
RX Noise power |
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0.8 |
25 |
83.7 |
1 |
-209.4 |
dBW |
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TX Power/dBW |
TX EIRP |
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14.4 |
57.4 |
dBW |
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Modulation loss/dB |
Spacecraft Speed/km/s |
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10 |
14.9 |
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S/N in 1Hz BW |
Doppler |
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28.7 |
dB |
415.8 |
kHz |
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Notes: Data on MEX dish size and power are not necessarily accurate, but resulting EIRP is believed to be correct. |
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User inputs are in gree shaded boxes |
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Distance to spacecraft is in AU (astronomical units), per the data given in the JPL Ephemeris site |
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