DDPAI Technology Co., Ltd MINI2X 2AJFX-MINI2X 2AJFXMINI2X mini2x
FCC ID : 2AJFX-MINI2X 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) Limits for Maximum Permissible Exposure (MPE) Frequency Range(MHz) 300-1500 1500-100000 300-1500 1500-100000 Electric Field Magnetic Field Power Strength(V/m) Strength(A/m) Density(mW/cm2) (A) Limits for Occupational/Control Exposures -- -- F/300 -- -- 5 (B) Limits for General Population/Uncontrol Exposures -- -- F/1500 -- -- 1 Average Time 6 6 6 30 11.1 Friis transmission formula: Pd= (Pout*G)\ (4*pi*R2) Where Pd= Power density in mW/cm2 Pout=output power to antenna in mW G= Numeric gain of the antenna relative to isotropic antenna 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 nd total power input to the antenna, through the calculation, we will know the distance where the MPE limit is reached. RF Exposure Information: The radiated output power of this device meets the limits of FCC/IC radio frequency exposure limits.This device should be operated with a minimum separation distance of 20cm (8 inches) between the equipment and a person's body. 11.2 Measurement Result WIFI and BT cannot transmit at the same time BLE Antenna gain: 1.80 dBi modulation BLE_1M BLE_2M Channel Freq. (MHz) 2402 2440 2480 2402 2440 2480 Measured power (dBm) 6.68 7.07 7.21 6.73 7.17 7.41 Wifi 5G Antenna gain: 4.27 dBi Tune-up power (dBm) 5 to 7 6 to 8 6 to 7 5 to 7 6 to 8 6 to 8 Max tune-up power (dBm) 7 8 8 7 8 8 Antenna Gain Numeric 1.51 1.51 1.51 1.51 1.51 1.51 Evaluation result (mW/cm2 ) 0.0015 0.0019 0.0019 0.0015 0.0019 0.0019 Power density Limits (mW/cm2 ) 1 1 1 1 1 1 modulation UNII-1 Measured power (dBm) 13.52 Tune-up power (dBm) 12 to 14 Max tune-up power (dBm) 14 Antenna Gain Numeric 2.67 Evaluation result (mW/cm2 ) 0.013 Power density Limits (mW/cm2 ) 1Microsoft Word 2013 Microsoft Word 2013