Useful links to elsewhere on this SATSIG web site:

System Noise Temperature

Satellite Link Budget

Explanation of satellite links

VSAT information

Find your lat and long

Focal length of parabola

Satellite Link Budget for digital satellite television MPEG distribution

You may amend white boxes and then click any calculate button to obtain results in the green boxes.

Uplink frequency GHz
Uplink antenna diameter m
Uplink antenna aperture efficiency e.g. 0.65
Uplink antenna transmit gain dBi
Uplink antenna, power at the feed W
Uplink EIRP dBW
Range (35778 - 41679) km
Uplink path loss dB
Uplink pfd at satellite dBW/m^2
Bandwidth Hz
Satellite uplink G/T dB/K
Uplink C/N dB

Downlink frequency GHz
Downlink receive antenna diameter m
Downlink receive antenna aperture efficiency e.g. 0.65
Downlink system noise temperature(antenna+LNA) K
Downlink receive antenna gain dBi
Downlink receive antenna G/T dB/K
Downlink satellite EIRP dBW
Downlink path loss dB
Downlink C/N dB

Uplink C/interference dB
Uplink C/N dB
Satellite C/intermod dB
Downlink C/N dB
Downlink C/interference dB
Total link C/N dB

Pre-calculated link budget with useful default parameters inserted (may be amended and recalculated)

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To general purpose satellite link budget calculatorpage

Any problems or comments please e-mail Eric Johnston
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Last Revision: 28 July 2024.