September 20, 2013

FCC Technician Exam Question Of The Day (T0C02)

Q) Which of the following frequencies has the lowest Maximum Permissible Exposure limit?

A) 50 MHz

NJ2X Notes:

FCC Limits for Maximum Permissible Exposure (MPE) - from §1.1310
Frequency Range
(MHz)
Electric Field
Strength (V/m)
Magnetic Field
Strength (A/m)
Power Density
(mW/cm2)
Averaging Time
(minutes)
0.3-3.06141.63100 6
3.0-301842/f4.89/f900/f2 †6
30-30061.40.1631.06
300-1500--f/3006
1500-100,000--56