RF Exposure Info

FCC ID: 2APRB-K8204-W

RF Exposure Info

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FCCID_4050907

1. MAXIMUM PERMISSIBLE EXPOSURE (MPE) 1.1 General Information Client Information Applicant: Guangzhou Juan Intelligent Tech Joint Stock Co.,Ltd Address of applicant: No.2 Plant, West of Shanxi country, Dashi street, Panyu District, Guangzhou, China Manufacturer: Guangzhou Juan Intelligent Tech Joint Stock Co.,Ltd Address of manufacturer: No.2 Plant, West of Shanxi country, Dashi street, Panyu District, Guangzhou, China General Description of EUT: Product Name: Network Video Recorder Trade Name: / K8204-W, K8208-W, K8204H-W, K8208H-W, K8304H-W, K8304-W, Model No.: T8204-W, T8208-W, ZR04JB/00, ZR04JB/10, ZR08KB/00, ZR08KB/10, ZR08QB/00, ZR08QB/10, ZR08QB/20, ZHS-A212, ZHR-A2200 FCC ID: 2APRB-K8204-W Rated Voltage: Adapter: DC12V Technical Characteristics of EUT: Wi-Fi Support Standards: 802.11b, 802.11g, 802.11n 2412-2462MHz for 802.11b/g/n(HT20) Frequency Range: 2422-2452MHz for 802.11n(HT40) RF Output Power: 16.52dBm (Conducted) Type of Modulation: CCK, OFDM, QPSK, BPSK, 16QAM, 64QAM Data Rate: 1-11Mbps, 6-54Mbps, up to 300Mbps Quantity of Channels: 11 for 802.11b/g/n(HT20); 7 for 802.11n(HT40) Channel Separation: 5MHz Type of Antenna: Undetachable External Antenna Antenna Gain: 5.0dBi 1.2 Standard Applicable According to §1.1307(b)(1) and KDB 447498 D01 General RF Exposure Guidance v06, system operating under the provisions of this section shall be operating in a manner that the public is not exposed to radio frequency energy level in excess limit for maximum permissible exposure.

(a) Limits for Occupational / Controlled Exposure Electric Field Magnetic Field Averaging Times Frequency range Power Density Strength (E) Strength (H) | E |2, | H |2 or (MHz) (S) (mW/cm2) (V/m) (A/m) S (minutes) 0.3-3.0 614 1.63 (100)* 6 3.0-30 1842/f 4.89/f (900/f)* 6 30-300 61.4 0.163 1.0 6 300-1500 / / F/300 6 1500-100000 / / 5 6 (b) Limits for General Population / Uncontrolled Exposure Electric Field Magnetic Field Averaging Times Frequency range Power Density Strength (E) Strength (H) | E |2, | H |2 or (MHz) (S) (mW/cm2) (V/m) (A/m) S (minutes) 0.3-1.34 614 1.63 (100)* 30 1.34-30 824/f 2.19/f (180/f)* 30 30-300 27.5 0.073 0.2 30 300-1500 / / F/1500 30 1500-100000 / / 1 30 Note: f = frequency in MHz: * = Plane-wave equivalents power density 1.3 MPE Calculation Method S = (30*P*G) / (377*R2) S = power density (in appropriate units, e.g., mw/cm2) P = power input to the antenna (in appropriate units, e.g., mw) G = power gain of the antenna in the direction of interest relative to an isotropic radiator, the power gain factor is normally numeric gain. R = distance to the center of radiation of the antenna (in appropriate units, e.g., cm)

1.4 MPE Calculation Result Maximum Tune-Up output power: 17.0 (dBm) Maximum peak output power at antenna input terminal: 50.12 (mW) Prediction distance: >20(cm) Prediction frequency: 2412 (MHz) Antenna gain: 5(dBi) Directional gain (numeric gain): 3.16 The worst case is power density at prediction frequency at 20cm: 0.032(mw/cm2) MPE limit for general population exposure at prediction frequency: 1 (mw/cm2) Result: Pass


Document Created: 2018-10-26 10:08:44
Document Modified: 2018-10-26 10:08:44
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