RF Exposure Info

FCC ID: NDD9564250909

RF Exposure Info

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FCCID_1319381

RV-1003005 Neutron Engineering Inc. 9. RF EXPOSURE TEST 9.1 APPLIED PROCEDURES / LIMIT 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 limit for maximum permissible exposure. In accordance with 47 CFR FCC Part 2 Subpart J, section 2.1091 this device has been defined as a mobile device whereby a distance of 0.2 m normally can be maintained between the user and the device. (A) Limits for Occupational / Controlled Exposure Electric Field Magnetic Field Averaging Time Frequency Range Power Density (S) Strength (E) Strength (H) |E|2,|H|2or S (MHz) (mW/ cm2) (V/m) (A/m) (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 1500-100,000 5 6 (B) Limits for General Population / Uncontrolled Exposure Electric Field Magnetic Field Averaging Time Frequency Range Power Density (S) Strength (E) Strength (H) |E|2,|H|2 or S (MHz) (mW/ cm2) (V/m) (A/m) (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 1500-100,000 1.0 30 Note: f = frequency in MHz ; *Plane-wave equivalent power density 9.1.1 MEASUREMENT INSTRUMENTS LIST Item Kind of Equipment Manufacturer Type No. Serial No. Calibrated until 1 Power Meter Anritsu ML2487A 6K00004714 Feb. 10, 2011 Power Meter 2 Anritsu MA2491A 34138 Feb. 10, 2011 Sensor Remark: ” N/A” denotes No Model Name , Serial No. or No Calibration specified. 9.1.2 MPE CALCULATION METHOD E (V/m) ＝ 30 × P × G Power Density: Pd (W/m²) ＝ E2 d 377 E ＝ Electric field (V/m) P ＝ Peak RF output power (W) G ＝ EUT Antenna numeric gain (numeric) d ＝ Separation distance between radiator and human body (m) The formula can be changed to Pd ＝ 30 × P × G 377 × d 2 From the peak EUT RF output power, the minimum mobile separation distance, d=0.2m, as well as the gain of the used antenna, the RF power density can be obtained Report No.: NEI-FCCP-1-0907C089 Page 133 of 141

RV-1003005 Neutron Engineering Inc. 9.1.3 DEVIATION FROM STANDARD No deviation. 9.1.4 TEST SETUP 9.1.5 EUT OPERATION CONDITIONS The EUT tested system was configured as the statements of 4.1.6 Unless otherwise a special operating condition is specified in the follows during the testing. Report No.: NEI-FCCP-1-0907C089 Page 134 of 141

RV-1003005 Neutron Engineering Inc. 9.1.6 TEST RESULTS EUT： Wireless N Broadband Router Model Name ： BR-6425N Temperature： 13℃ Relative Humidity： 64% Test Voltage： AC 120V/60Hz Test Mode ： 802.11b Limit of Power Frequency Antenna Antenna Gain Peak Output Peak Output Power Density Density (S) (MHz) Gain (dBi) (numeric) Power (dBm) Power (mW) (S) (mW/cm2) (mW/cm2) 2412 3.00 1.9953 14.4500 27.8612 0.011065 1 2437 3.00 1.9953 14.0000 25.1189 0.009976 1 2462 3.00 1.9953 14.0800 25.5859 0.010161 1 EUT： Wireless N Broadband Router Model Name ： BR-6425N Temperature： 13℃ Relative Humidity： 64% Test Voltage： AC 120V/60Hz Test Mode ： 802.11g Limit of Power Frequency Antenna Antenna Gain Peak Output Peak Output Power Density Density (S) (MHz) Gain (dBi) (numeric) Power (dBm) Power (mW) (S) (mW/cm2) (mW/cm2) 2412 3.00 1.9953 24.7400 297.8516 0.118291 1 2437 3.00 1.9953 24.5300 283.7919 0.112707 1 2462 3.00 1.9953 23.8100 240.4363 0.095488 1 Report No.: NEI-FCCP-1-0907C089 Page 135 of 141

RV-1003005 Neutron Engineering Inc. EUT： Wireless N Broadband Router Model Name ： BR-6425N Temperature： 13℃ Relative Humidity： 64% Test Voltage： AC 120V/60Hz Test Mode ： 802.11n HT20 Single TX (TX No.1) Limit of Power Frequency Antenna Antenna Gain Peak Output Peak Output Power Density Density (S) (MHz) Gain (dBi) (numeric) Power (dBm) Power (mW) (S) (mW/cm2) (mW/cm2) 2412 3.00 1.9953 19.7800 95.06050 0.037753 1 2437 3.00 1.9953 21.9600 157.0363 0.062366 1 2462 3.00 1.9953 22.1800 165.1962 0.065607 1 EUT： Wireless N Broadband Router Model Name ： BR-6425N Temperature： 13℃ Relative Humidity： 64% Test Voltage： AC 120V/60Hz Test Mode ： 802.11n HT20 Single TX (TX No.2) Limit of Power Frequency Antenna Antenna Gain Peak Output Peak Output Power Density Density (S) (MHz) Gain (dBi) (numeric) Power (dBm) Power (mW) (S) (mW/cm2) (mW/cm2) 2412 3.00 1.9953 18.9700 78.8860 0.031329 1 2437 3.00 1.9953 21.4000 138.0384 0.054821 1 2462 3.00 1.9953 21.5700 143.5489 0.057010 1 EUT： Wireless N Broadband Router Model Name ： BR-6425N Temperature： 13℃ Relative Humidity： 64% Test Voltage： AC 120V/60Hz Test Mode ： 802.11n HT20 Dual TX (TX No.1 + TX No.2) Limit of Power Frequency Antenna Antenna Gain Peak Output Peak Output Power Density Density (S) (MHz) Gain (dBi) (numeric) Power (dBm) Power (mW) (S) (mW/cm2) (mW/cm2) 2412 6.00 3.9811 22.4042 173.9465 0.137837 1 2437 6.00 3.9811 24.6993 295.0747 0.233820 1 2462 6.00 3.9811 24.8960 308.7451 0.244653 1 Remark： (1) The MIMO test requirement, MPE shall measure by using the total sum power of each transmitter chain. Report No.: NEI-FCCP-1-0907C089 Page 136 of 141

RV-1003005 Neutron Engineering Inc. EUT： Wireless N Broadband Router Model Name ： BR-6425N Temperature： 13℃ Relative Humidity： 64% Test Voltage： AC 120V/60Hz Test Mode ： 802.11n HT40 Single TX (TX No.1) Limit of Power Frequency Antenna Antenna Gain Peak Output Peak Output Power Density Density (S) (MHz) Gain (dBi) (numeric) Power (dBm) Power (mW) (S) (mW/cm2) (mW/cm2) 2412 3.00 1.9953 20.2000 104.7129 0.041586 1 2437 3.00 1.9953 21.8100 151.7050 0.060249 1 2462 3.00 1.9953 20.2000 104.7129 0.041586 1 EUT： Wireless N Broadband Router Model Name ： BR-6425N Temperature： 13℃ Relative Humidity： 64% Test Voltage： AC 120V/60Hz Test Mode ： 802.11n HT40 Single TX (TX No.2) Limit of Power Frequency Antenna Antenna Gain Peak Output Peak Output Power Density Density (S) (MHz) Gain (dBi) (numeric) Power (dBm) Power (mW) (S) (mW/cm2) (mW/cm2) 2412 3.00 1.9953 20.2100 104.9542 0.041682 1 2437 3.00 1.9953 21.8400 152.7566 0.060667 1 2462 3.00 1.9953 20.1000 102.3293 0.040640 1 EUT： Wireless N Broadband Router Model Name ： BR-6425N Temperature： 13℃ Relative Humidity： 64% Test Voltage： AC 120V/60Hz Test Mode ： 802.11n HT40 Dual TX (TX No.1 + TX No.2) Limit of Power Frequency Antenna Antenna Gain Peak Output Peak Output Power Density Density (S) (MHz) Gain (dBi) (numeric) Power (dBm) Power (mW) (S) (mW/cm2) (mW/cm2) 2412 6.00 3.9811 23.2153 209.6671 0.166142 1 2437 6.00 3.9811 24.8353 304.4616 0.241259 1 2462 6.00 3.9811 23.1606 207.0422 0.164062 1 Remark： (1) The MIMO test requirement, MPE shall measure by using the total sum power of each transmitter chain. Report No.: NEI-FCCP-1-0907C089 Page 137 of 141


Document Created: 2010-05-19 18:29:24
Document Modified: 2010-05-19 18:29:24
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