1709RSU00403-RF Exposure Report

FCC ID: 2ABLK-804MESH

RF Exposure Info

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FCCID_3618021

MRT Technology (Suzhou) Co., Ltd Report No.: 1709RSU00403 Phone: +86-512-66308358 Report Version: V01 Web: www.mrt-cert.com Issue Date: 10-18-2017 RF Exposure Evaluation Declaration FCC ID: 2ABLK-804MESH APPLICANT: Calix Inc. Product: 804Mesh Dual Wi-Fi Model No.: 804MESH Brand Name: Calix FCC Classification: Digital Transmission System (DTS) Unlicensed National Information Infrastructure (UNII) Test Procedure(s): KDB 447498 D01v06 Reviewed By : (Sunny Sun) Approved By : (Marlin Chen) The test results relate only to the samples tested. The test results shown in the test report are traceable to the national/international standards through the calibration of the equipment and evaluated measurement uncertainty herein. The test report shall not be reproduced except in full without the written approval of MRT Technology (Suzhou) Co., Ltd. FCC ID: 2ABLK-804MESH Page Number: 1 of 6

Report No.: 1709RSU00403 Revision History Report No. Version Description Issue Date Note 1709RSU00403 Rev. 01 Initial Report 10-18-2017 Valid FCC ID: 2ABLK-804MESH Page Number: 2 of 6

Report No.: 1709RSU00403 1. PRODUCT INFORMATION 1.1. Equipment Description Product Name: 804Mesh Dual Wi-Fi Model No.: 804MESH Brand Name: Calix Wi-Fi Specification: 802.11a/b/g/n/ac Frequency Range 2.4GHz: For 802.11b/g/n-HT20: 2412 ~ 2462 MHz For 802.11n-HT40: 2422 ~ 2452 MHz 5GHz: For 802.11a/n-HT20/ac-VHT20: 5180~5240MHz, 5745~5825MHz For 802.11n-HT40/ac-VHT40: 5190~5230MHz, 5755~5795MHz For 802.11ac-VHT80: 5210MHz, 5775MHz Type of Modulation 802.11b: DSSS 802.11g/a/n/ac: OFDM Modulation Technology CCK, DQPSK, DBPSK for DSSS 16QAM, 64QAM, 256QAM, QPSK, BPSK for OFDM FCC ID: 2ABLK-804MESH Page Number: 3 of 6

Report No.: 1709RSU00403 1.2. Antenna Description Antenna Frequency TX Directional Gain (dBi) Type Band Paths Non Beam Forming CDD & Beam-Forming (GHz) Mode Mode 2.4 2 1.40 -- PCB 5.2 4 -- 8.90 Antenna 5.8 4 -- 9.00 Note: 1. Transmit at 2.4GHz support two antennas, and support four antennas at 5GHz transmit. 2. The EUT working on Beam Forming mode at 802.11n/ac, and working on CDD mode at 802.11a. 3. Correlated signals include, but are not limited to, signals transmitted in any of the following modes:  Any transmit Beam Forming mode, whether fixed or adaptive (e.g., phased array modes, closed loop MIMO modes, Transmitter Adaptive Antenna modes, Maximum Ratio Transmission (MRT) modes, and Statistical Eigen Beam Forming (EBF) modes). 4. Unequal antenna gains, with equal transmit powers. For antenna gains given by G1, G2, …, GN dBi  transmit signals are correlated, then  Directional gain = 10 log[(10G1/20 + 10G2/20 + … + 10GN/20)2/NANT] dBi [Note the “20”s in the denominator of each exponent and the square of the sum of terms; the object is to combine the signal levels coherently.] FCC ID: 2ABLK-804MESH Page Number: 4 of 6

Report No.: 1709RSU00403 2. RF Exposure Evaluation 2.1. Limits 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 Electric Field Magnetic Field Power Density Average Time 2 (MHz) Strength (V/m) Strength (A/m) (mW/cm ) (Minutes) (A) Limits for Occupational/ Control Exposures 300-1500 -- -- f/300 6 1500-100,000 -- -- 5 6 (B) Limits for General Population/ Uncontrolled Exposures 300-1500 -- -- f/1500 6 1500-100,000 -- -- 1 30 f= Frequency in MHz Calculation 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 is the limit of MPE, 1mW/cm². If we know the maximum gain of the antenna and the total power input to the antenna, through the calculation, we will know the distance r where the MPE limit is reached. FCC ID: 2ABLK-804MESH Page Number: 5 of 6

Report No.: 1709RSU00403 2.2. Test Result of RF Exposure Evaluation Product 804Mesh Dual Wi-Fi Test Item RF Exposure Evaluation Test Mode Frequency Maximum Safety Power Density Limit of Power Band EIRP Distance (mW/cm2) Density (MHz) (dBm) (cm) (mW/cm2) 802.11b/g/n-HT20/ 2412 ~ 2462 25.57 20 0.0717 1 n-HT40 802.11a/n-HT20/ 5150 ~ 5250, n-H40/ac-VHT20 35.92 20 0.7776 1 5725 ~ 5850 ac-VHT40/ac-VHT80 2.3. Summary of Test Result The maximum calculations of above situations Configuration The formula of calculated Calculation Power Limit Result 2 2 the MPE (mW/cm ) Density (mW/cm ) 2.4GHz + 5GHz 0.0717 + 0.7776 0.8493 1 Pass The wireless device described within this report has been shown to be capable of compliance with basic restrictions related to human exposure to electromagnetic fields for General public. The calculations shown in this report were made in accordance the procedures specified in the applied test specifications. The safety distance is 20cm. The End FCC ID: 2ABLK-804MESH Page Number: 6 of 6


Document Created: 2017-10-18 22:14:25
Document Modified: 2017-10-18 22:14:25
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