The antenna factor (K) is the figure that expresses the efficiency of the antenna.

The antenna factor is calculated out of the antenna gain in dBi and the frequency in MHz.



This formula is published in a ITU publication on page 197 of ISBN 92-61-05761-6


The antenna factor is used for conversion of the measured signalstrength in dBm at a antenna in to dB(uV/m).


Calculate from and to other units ?
Use the 'On-line RF calculator'.