Standard methods for the measurement of electromagnetic field strength in radiowave propagation are described in detail. These are for frequencies below 1000 MHz, and include the standard-antenna method and the standard-field method.
IEEE Std 302-1969 history
0000 IEEE Std 302-1969(R1981)
1961IEEE Std 302-1969 IEEE Standard Methods for Measuring Electromagnetic Field Strength for Frequencies Below 1000 MHz in Radio Wave Propagation