18_HD01 RFExp r1

FCC ID: 2AAXFHD160108

RF Exposure Info

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FCCID_3515325

                                Dongguan Nore Testing Center Co., Ltd.
                                     Report No.: NTC1512141F-1
                                      FCC ID: 2AAXFHD160108


                          RF EXPOSURE EVALUATION
                              EUT Specification
EUT                          Wireless Doorbell

Model Name                   HD01, HD02, HD03, HD04, HD05, HD06, HD07, HD08

Frequency band                  WLAN: 2.412GHz ~ 2.462GHz
(Operating)                     WLAN: 5.18GHz ~ 5.32GHz / 5.50GHz ~ 5.70GHz
                                WLAN: 5.745GHz ~ 5825GHz
                               Others(433.92MHz)
Device category                Portable (<20cm separation)
                               Mobile (>20cm separation)
                               Others ___
Antenna diversity              Single antenna
                               Multiple antennas
                               Tx diversity
                               Rx diversity
                               Tx/Rx diversity
Max. output power            83.28 dBuV/m (-11.98dBm)(0.063mW)
Antenna gain                 2.15dBi
Evaluation applied             MPE Evaluation
                               SAR Evaluation


                               Standard Requirement

Portable Device

According to §15.247(i) and §1.1307b(1), 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. See KDB 447498 D01 General RF
Exposure Guidance v05, section 4.3.1.

The 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation
distances ≤ 50 mm are determined by:
[(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance,
mm)] ·[√f(GHz)] ≤ 3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR,16 where
·f(GHz) is the RF channel transmit frequency in GHz
·Power and distance are rounded to the nearest mW and mm before calculation17
·The result is rounded to one decimal place for comparison
The test exclusions are applicable only when the minimum test separation distance is ≤ 50
mm and for transmission frequencies between 100 MHz and 6 GHz. When the minimum test
separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion.


                             Dongguan Nore Testing Center Co., Ltd.
                                  Report No.: NTC1512141F-1
                                   FCC ID: 2AAXFHD160108


                              Measurement Result

           Channel      Max Output       Max Output         Calculation      Threshold
          Frequency     power (dBm)      power (mW)         Value (Note 1)     Value
            (MHz)
            433.92         -11.98            0.063             0.0083           3.0




           EIRP=E-104.8+20logD=83.28-104.8+20log3=-11.98dBm

        Note 1: Calculation Value =[(max. power of channel, mW)/(min.
                test separation distance, mm)] ·[√f(GHz)].
                Fox example: 0.063/5*√0.43392=0.0083 ≤ 3.0

According to KDB447498 D01 V05, threshold at which no SAR required is ≤3.0 for 1-g
SAR, separation distance is 5mm, and no simultaneous SAR measurement is required.

Standard Applicable
According to 2.1093 this is a portable device.
According to KDB 447498 D01 V5, Appendix A SAR test exclusion thresholds for below table,
the power level 22mW at 5mm.




Measurement Result:
This is a portable device and the Max. peak output power is -11.98dBm(0.063mW) lower than
low threshold 22mW at 5mm in general population category;

The SAR measurement is not necessary.



Document Created: 2017-07-31 11:17:27
Document Modified: 2017-07-31 11:17:27

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