Committee on Radio Astronomy Frequencies

Estimate of path-loss attenuation

This routine calculates the path-loss of terrestrial transmitters using a free space propagation model given in Recommendation ITU-R P.525, while to estimate the atmospheric attenuation the Recommendation ITU-R P.676 is used.

distance of transmitter to receiver: (in km)
frequency: (in GHz)
air pressure: (in hPa)
temperature: (in oC)
water vapour density: (in g/cm3)

Fill in and click to get results
or click reset to renew all parameters

Last modified: March 3, 2004