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No. To calculate the field strength, you'll need to know the gain of transmitting antenna and put in free field impedance. See https://en.wikipedia.org/wiki/Dipole_field_strength_in_free_spaceAm I correct to used the llimit given multiple by 3 ( 3M away) then convert the dB(μV/m) value to dBm ?
Hi
I need to calculate the maximum RF power(dbm) from my device from the limit given in the picture below:
The device is 3m away and the limit is given in dB(μV/m).
Am i correct to used the llimit given multiple by 3 ( 3M away) then convert the dB(μV/m) value to dbm ?
View attachment 139648
These limits are specifically given for spurious emissions and not for the carrier frequency.
Free space loss formula gives you the received power with antennas of specific gain. Need to put in receiver antenna factor to calculate field strength. The approach quoted in post #2 calculates field strength directly.