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Link Budgets index page

VSAT information

Latitude and longitude explanation

Satellite beam design

IET satellite communications summer school

Satellite downlink EIRP

Uplink satellite G/T

Uplink PFDsat

Astra beam coverage

O3b beams

Antenna beam width calculator

Views of the earth from various geo orbit positions

VSAT network design

My animated video of the Planet Earth Globe

Satellite Link Budget Calculator

Complete all 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

At the top of this web page is a link to "Link Budgets index page". This leads to pages with pre-calculated satellite link budgets with useful default parameters inserted which may be amended and then recalculated.


Any problems or comments please e-mail Eric Johnston

► Page amended 5 Nov 2016

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