Online Satellite Calculations

This is one of the best sites for technical information.
Here is a list of what is available:

GEO satellite position list based on two line elements
Antenna look angles calculator
Downlink budget for DVB-S and DVB-S2 calculator
Satellite tracker based on two line elements (TLE)
Satellite list generator based on two line elements (TLE) bulk data
LNB saturation calculator
Power reaching the satellite receiver
Antenna pointing data from 11-parameter ephemeris data
Carrier to noise vs Eb\No for DVB-S and DVB-S2
DVB-S/DVB-S2 bitrates,bandwidth and symbolrate calculator
Satellite eclipse calculator
Sun and Moon position calculator
Sunrise, sunset and sun transit calculator
Conversion between dBmW and dBuV
G Tsys calculator
Noise Figure Temperature converter
Offset antenna efficiency and offset angle
Antenna Efficiency calculator
Antenna gain and beamwidth
Gainloss vs Antenna pointerror
Loss of gain with antenna surface irregularities
Power of a QPSK carrier measured on Agilent E4402B Spectrum analyzer
Power of a QPSK carrier measured on a Spectrum analyzer
Antenna look angles, slantrange and pathloss
Calculate Bitrates for DSNG on 1-West.
Elevation angle for a physical obstacle
Calculate Frequency setting when the receiver do not support the LNB L.O.
LNB IF Frequency
VSWR loss calculator
Prime focus parabolic reflector calculations
Offset parabolic reflector calculations
CCIR Sidelobe envelope calculation
Sun Position autoupdating
Sun Position
C\N calculator
CXR level calculator

I have been using this site for years and I think it is an excellent place for information on dish antennas and other satellite information. The link is listed below. EB

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