FCC SAR Testing & Radio Frequency Exposure 2

Question 1

What is the time-averaging period used for MPE calculations in uncontrolled (general population) environments per FCC rules?

Accepted Answer

30 minutes

Answer

The FCC specifies a 30-minute time-averaging period for MPE calculations in uncontrolled/general population environments, compared to 6 minutes for controlled/occupational environments.

Question 2

What instrument is used to measure the electric field distribution within a SAR phantom during testing?

Accepted Answer

Isotropic electric field (E-field) probe

Answer

An isotropic E-field probe is inserted into the phantom and scanned robotically to map the three-dimensional electric field distribution from which the peak SAR is calculated.

Question 3

At what power level must a device under test be operated during FCC SAR compliance testing?

Accepted Answer

Maximum certified transmission power

Answer

SAR testing must be conducted at the maximum certified transmission power level to ensure the worst-case RF exposure is evaluated for compliance.

Question 4

Which international standard, published by the IEC, is frequently harmonized with FCC SAR test requirements for portable wireless devices?

Accepted Answer

IEC 62209

Answer

IEC 62209 (Human exposure to radio frequency fields from hand-held and body-mounted wireless communication devices) is harmonized with FCC SAR requirements and recognized by accreditation bodies worldwide.

Question 5

Which FCC rule section governs SAR evaluation requirements for portable transmitting devices?

Accepted Answer

47 CFR Part 2.1093

Answer

47 CFR Part 2.1093 establishes RF radiation exposure evaluation requirements specifically for portable devices, including the 1.6 W/kg SAR limit averaged over 1 gram.

FCC - Federal Communications Commission Certified Laboratory Practice Test

FCC - Federal Communications Commission Certified Laboratory Practice Test

FCC SAR Testing & Radio Frequency Exposure 2