Table 8: Distance to FCC1C, 3 SM

DISTANCE AT WHICH FCC TWA SAFETY LIMIT IS EXCEEDED FOR COLLECTOR METER (in inches)

(FCC limit is 571 uW/cm2 or 624 uW/cm2 for collector+ 3 SM)

FCC Limit=571 uW/cm2 for collector meter

One Meter (1 collector) Table A9 Table A10 Table A11 Table A12
Duty Cycle 60% 100% 1000% 2000%
Reflection Reflection Reflection* Reflection*
1% 0.9” 1.2” 6.5” 12.3”
10% 3.0” 3.7” 20.4” 39.0”
20% 4.2” 5.2” 28.9” 55.1”
30% 5.1” 6.4” 35.3” 67.5”
40% 5.9” 7.4” 40.8” 77.9”
50% 6.6” 8.3” 45.6” 87.1”
60% 7.3” 9.1” 50.0” 95.4”
70% 7.9” 9.8” 54.0” 103”
80% 8.4” 10.5” 57.7” 110”
90% 8.9” 11.1” 61.2” 116”
100%*** 9.4” 11.7” 64.5” 123”

FCC Limit = 624 uW/cm2 for collector meter plus 3 smart meters

*Note: 1000-2000% reflection based on Vermeeren et al, 2010; Christ et al, 2010; Hondou, 2002.

**More than 4 meters placed together do not appreciably increase the exposure to one reference point, such as a crib or bed. However, multiple meters can increase the square footage of space similarly affected.

***Continuous exposure is required in calculations of time-weighted average radiofrequency exposure for uncontrolled public access by FCC OET 65 (p. 15)
One Collector** + 3 Smart Meters Table A13 Table A14 Table A15 Table A16
Duty Cycle 60% 100% 1000% 2000%
Reflection Reflection Reflection* Reflection*
1% 1.6” 2.1” 10.9” 21.3
10% 4.2” 5.6” 35.6” 68.1”
20% 6.7” 8.7” 50.4” 96.3”
30% 8.5” 10.8” 61.7” 118”
40% 9.9” 12.6” 71.3” 136”
50% 11.2” 14.2” 79.7” 152”
60% 12.4” 15.6” 87.4” 167”
70% 13.4” 16.9” 94.4” 180”
80% 14.4” 18.1” 101” 193”
90% 15.3” 19.2” 107” 204”
100%*** 16.1” 20.3” 113” 215”