Calculate RF Exposure

This calculator should not be used for antennas that are less than 20 cm (8 in) from a person.

Duty Cycle (Mode):Conversational SSB, no speech processing (mode duty cycle=20%)Conversational SSB, heavy speech processing (duty cycle=50%)Conversational CW (duty cycle=40%)FM (duty cycle=100%)AM (duty cycle=100%)FSK/RTTY (duty cycle=100%)AFSK SSB (duty cycle=100%)Carrier Always On, i.e., for Tuning Up (duty cycle=100%)For all others, or if unknown, assume max always on (duty cycle=100%)

Duty Cycle (Transmit):minutesDuty Cycle (Receive):minutes

Antenna Gain:dBi

Frequency:MHz

Include Ground Reflections: