Useful links to elsewhere on this SATSIG web site:

System Noise Temperature

Satellite Link Budget

Antenna gain

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)

SCPC / DAMA 8kbit/s mesh network satellite link budget for 1.8m antennas - Skylinx
Data broadcasting or data distribution satellite link budget
Line of sight link radio budget - one way - single hop
Satellite mobile phone link budget - return link from mobile to hub
Europe to Africa - Satellite internet broadband outlink
Africa to Europe - Satellite internet TDMA return link

Broadband satellite internet access service for US and South America
Broadband direct satellite internet access service for the Middle East
Satellite internet and satellite VoIP communications access for Africa
Australia broadband satellite access 
Satellite finder: Calculate dish aiming and pointing angles for any site

To general purpose satellite link budget calculator page

Any problems or comments please e-mail Eric Johnston
Copyright ? 1999,2003 Satellite Signals Ltd. All rights reserved.
Last Revision: 23 Oct 2004,  9 Dec 2010.