MPE

FCC ID: DO4NEO-C

RF Exposure Info

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FCCID_3881051

Electromagnetic Compatibility Criteria for Intentional Radiators § 15.247(i) Maximum Permissible Exposure RF Exposure Requirements: §1.1307(b)(1) and §1.1307(b)(2): Systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy levels in excess of the Commission’s guidelines. RF Radiation Exposure Limit: §1.1310: As specified in this section, the Maximum Permissible Exposure (MPE) Limit shall be used to evaluate the environmental impact of human exposure to radiofrequency (RF) radiation as specified in Sec. 1.1307(b), except in the case of portable devices which shall be evaluated according to the provisions of Sec. 2.1093 of this chapter. Note: Co-located transmitters are: 8.2MHz RFID, 2.4GHz BT and 2.4GHz WiFi OR 8..2MHz RFID, 2.4GHz BT and 1800MHz Cellular

Equation from page 18 of OET 65, Edition 97-01 S = PG / 4R2 or R = √(PG / 4S) where, S = Power Density (mW/cm2) P = Power Input to antenna (mW) G = Antenna Gain (numeric value) R = Distance (cm) G(dBi) = 10 log G (linear) Test Results: Results are based on KDB 447498 [Section 7.2]. Transmitters used in mobile device exposure conditions for simultaneous transmission operations. MPE Result for Intentional Radiators of Frequency Range: 300 MHZ – 1500 MHz Limit at Conduc 20 cm Conducte Ant Frequency ted Ant Gain Power Density (mW/cm Percentage of d Power Gain (MHz) Power (dBi) (mW/cm^2) ^2) Limit (%) (mW) (dBi) (dBm) f/1500 836 (Cellular) 31.58 1438.79 1.8 1.513 0.393 0.557 70.55 Note: Tune Up Tolerance is [+/-] 1dB for 836 MHz radios. The safe distance where Power Density is less than the MPE Limit listed above was found to be 21 cm. Note: Cellular radio is pre-certified with FCC-ID: QISMS2372H-517

MPE Result for Intentional Radiators of Frequency Range: 1500 MHZ – 100,000 MHz Conduc Limit at Conducte Ant Frequency ted Ant Gain Power Density 20 cm Percentage of d Power Gain (MHz) Power (dBi) (mW/cm^2) (mW/cm Limit (%) (mW) (dBi) (dBm) ^2) 2402 (BLE) 0.05 1.011 -4.1 0.389 0.00007 1 0.007 2437 (WiFi) 10.86 12.18 2 1.584 0.00384 1 0.384 Note: Tune Up Tolerance is [+/-] 1dB for 2402 MHz and 2437 MHz radios. The safe distance where Power Density is less than the MPE Limit listed above was found to be 21 cm. Note: BLE radio is pre-certified with FCC-ID: PANBT400 and WiFi radio is pre-certified with FCC-ID: W6RRNWD-N1502UBE MPE Result for Intentional Radiators of Frequency Range: 1.34 MHZ – 30 MHz S = E / 4R2 where, S = Power Density (mW/cm2) E = EIRP (mW) R = Distance (cm) Limit at 20 cm Frequency EIRP EIRP Power Density (mW/cm^2) Percentage of EIRP (mW) (MHz) (dBuV/m) (dBm) (mW/cm^2) Limit (%) 180/f2 8.2 54.7 -40.5 0.0001 0.000000019 2.67 0.00000007 Note: Tune Up Tolerance is [+/-] 1dB for 8.2 MHz radio. The safe distance where Power Density is less than the MPE Limit listed above was found to be 21 cm.


Document Created: 2018-06-06 09:36:53
Document Modified: 2018-06-06 09:36:53
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