18_03H18001 RFExp

FCC ID: 2AHJX-03H18001

RF Exposure Info

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FCCID_4475471

RF EXPOSURE EVALUATION

According to FCC 1.1310: The criteria listed in the following table shall be used to
evaluate the environment impact of human exposure to radio frequency(RF) Radiation
as specified in §1.1307(b)

FCC ID: 2AHJX-03H18001

EUT Specification
EUT Cruzr Robot
Frequency band (Operating) WLAN: 2.412GHz ~ 2.462GHz
WLAN: 5.18GHz ~ 5.24GHz
WLAN: 5.745GHz ~ 5.825GHz
Others: 2.402GHz~2.480GHz (BT2.1)
Device category Portable (<20cm separation)
Mobile (>20cm separation)
Others ___
Exposure classification Occupational/Controlled exposure (S = 5mW/cm2)
General Population/Uncontrolled exposure (S=1mW/cm2)
Antenna diversity Single antenna
Multiple antennas
Tx diversity
Rx diversity
Tx/Rx diversity
Max. output power 2.4GHz WiFi: 14.52dBm (0.0283W)
5.8GHz WIFI: 13.59dBm (0.0229W)
Antenna gain (Max) Wifi 2.4G: 2.82 dBi
WiFi 5.8G: 3.92 dBi
Evaluation applied MPE Evaluation
SAR Evaluation

Limits for Maximum Permissible Exposure(MPE)

Frequency Electric Field Magnetic Field Power Average
Range(MHz) Strength(V/m) Strength(A/m) Density(mW/cm2) Time
(A) Limits for Occupational/Control Exposures
300-1500 -- -- F/300 6
1500-100000 -- -- 5 6
(B) Limits for General Population/Uncontrol Exposures
300-1500 -- -- F/1500 6
1500-100000 -- -- 1 30

$Friis transmission formula: Pd=(Pout*G)\(4*pi*R2) Where Pd= Power density in mW/cm2 Pout=output power to antenna in Mw G= gain of antenna in linear scale Pi=3.1416 R= distance between observation point and center of the radiator in cm Pd the limit of MPE, 1mW/cm2. If we know the maximum gain of the antenna and total power input to the antenna, through the calculation, we will know the distance where the MPE limit is reached. Measurement Result Channel Measured Tune up Max. Tune Antenna Power density Operating Power density Frequency Power tolerance up Power Gain at 20cm Mode Limits (mW/cm2 ) (MHz) (dBm) (dBm) (dBm) (dBi) (mW/ cm2 ) 2412 14.52 14.52±1 15.52 2.82 0.0136 1 802.11b 2437 14.00 14.00±1 15.00 2.82 0.0120 1 2462 14.05 14.05±1 15.05 2.82 0.0122 1 2412 13.40 13.40±1 14.40 2.82 0.0105 1 802.11g 2437 12.94 12.94±1 13.94 2.82 0.0094 1 2462 12.96 12.96±1 13.96 2.82 0.0095 1 2412 12.31 12.31±1 13.31 2.82 0.0082 1 802.11n 2437 12.17 12.17±1 13.17 2.82 0.0079 1 (HT20) 2462 12.38 12.38±1 13.38 2.82 0.0083 1 5.8GHz WiFi: Channel Measured Tune up Max. Tune up Power density at Power density Operating Antenna Gain Frequency Power tolerance Power 20cm Limits Mode (MHz) (dBm) (dBm) (dBm) (dBi) (mW/ cm2 ) (mW/cm2 ) 5745 10.73 10.73±1 11.73 3.92 0.0073 1 802.11a 5785 12.20 12.20±1 13.20 3.92 0.0103 1 5825 10.76 10.76±1 11.76 3.92 0.0074 1 5745 10.72 10.72±1 11.72 3.92 0.0073 1 802.11n20 5785 13.59 13.59±1 14.59 3.92 0.0141 1 5825 13.30 13.30±1 14.30 3.92 0.0132 1$

Document Created: 2019-09-25 11:30:54
Document Modified: 2019-09-25 11:30:54