What is the safety zone of the MHR when radiating?

What is the safety zone of the MHR when radiating?

• A. 30m to the front, and 1m to the rear
• B. 10m to the front, 2m to rear
• C. 50m to front, 5m to rear
• D. 60m to front, 0m to rear

Answer: (A)

Safety zones are set by how much radiation exposure is expected at different distances and directions from a radiating device. The MHR emits a beam that is strongest in the forward direction, so you need a large clearance in front to keep exposure below permissible limits. Behind the device, radiation is typically weaker due to the antenna pattern and any shielding, so the rear zone can be much smaller. The chosen distances—30 meters in front and 1 meter to the rear—reflect this directional risk, providing a substantial forward exclusion zone while allowing relatively close access from the rear where exposure is lowest. In practice, the exact numbers depend on the device’s power, frequency, beam width, and shielding, but the principle remains: a larger front safety distance and a smaller rear distance match how the radiation spreads.

Safety zones are set by how much radiation exposure is expected at different distances and directions from a radiating device. The MHR emits a beam that is strongest in the forward direction, so you need a large clearance in front to keep exposure below permissible limits. Behind the device, radiation is typically weaker due to the antenna pattern and any shielding, so the rear zone can be much smaller. The chosen distances—30 meters in front and 1 meter to the rear—reflect this directional risk, providing a substantial forward exclusion zone while allowing relatively close access from the rear where exposure is lowest. In practice, the exact numbers depend on the device’s power, frequency, beam width, and shielding, but the principle remains: a larger front safety distance and a smaller rear distance match how the radiation spreads.