T0C - Safety
Technician Class
RF hazards: radiation exposure, proximity to antennas, recognized safe power levels, radiation types, duty cycle
13 questions | Updated: Dec 9, 2025
What type of radiation are radio signals?
At which of the following frequencies does maximum permissible exposure have the lowest value?
How does the allowable power density for RF safety change if duty cycle changes from 100 percent to 50 percent?
What factors affect the RF exposure of people near an amateur station antenna?
Why do exposure limits vary with frequency?
Which of the following is an acceptable method to determine whether your station complies with FCC RF exposure regulations?
What hazard is created by touching an antenna during a transmission?
Which of the following actions can reduce exposure to RF radiation?
How can you make sure your station stays in compliance with RF safety regulations?
Why is duty cycle one of the factors used to determine safe RF radiation exposure levels?
What is the definition of duty cycle during the averaging time for RF exposure?
How does RF radiation differ from ionizing radiation (radioactivity)?
Who is responsible for ensuring that no person is exposed to RF energy above the FCC exposure limits?