SAR Testing & Radio Frequency Exposure Flashcards
7 cards from real FCC practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 SAR Testing & Radio Frequency Exposure flashcards as text
What does SAR stand for in the context of FCC device testing?
Answer: Specific Absorption Rate
SAR (Specific Absorption Rate) is the rate at which energy is absorbed by the human body when exposed to a radio frequency electromagnetic field.
What is the FCC's general population SAR limit for mobile phones operated near the head?
Answer: 1.6 W/kg averaged over 1 gram
FCC 47 CFR Part 2.1093 sets the SAR limit at 1.6 W/kg averaged over any 1 gram of tissue for the general population/uncontrolled exposure category.
Over what mass of tissue is the FCC SAR limit for the head and trunk spatially averaged?
Answer: 1 gram
The FCC SAR limit of 1.6 W/kg is averaged over any 1 gram of tissue in the shape of a cube, as specified in 47 CFR Part 2.1093.
Which IEEE standard specifies the measurement procedures for SAR of wireless mobile handsets?
Answer: IEEE 1528
IEEE 1528 (Recommended Practice for Determining the Peak Spatial-Average SAR in the Human Head from Wireless Communications Devices) defines SAR measurement procedures for mobile handsets.
What is the primary purpose of the homogeneous liquid filling the head phantom in SAR testing?
Answer: To simulate the average dielectric properties of human head tissue
The tissue-simulating liquid is formulated to match the dielectric properties (permittivity and conductivity) of human head tissue at the test frequency, enabling accurate SAR measurements.
Which FCC bulletin provides detailed guidance for evaluating RF exposure compliance for wireless devices?
Answer: OET Bulletin 65
FCC OET Bulletin 65 (Evaluating Compliance with FCC Guidelines for Human Exposure to Radiofrequency Electromagnetic Fields) is the primary reference document for RF exposure compliance evaluation.
For which frequency range does the FCC require SAR evaluation for portable devices operated near the body?
Answer: 100 kHz to 6 GHz
The FCC requires SAR evaluation for portable transmitting devices operating from 100 kHz to 6 GHz, as specified in 47 CFR Part 2.1093 and OET Bulletin 65.