RF Exposure Info

FCC ID: 2ATV8TRIMLIGHT

RF Exposure Info

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FCCID_4420929

 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD.                                                             FCC ID: 2ATV8TRIMLIGHT


                                       Maximum Permissible Exposure Report
Product Information
  FCC ID:                                         2ATV8TRIMLIGHT
  Product name                                    Trimlight LED Controller
  Model number                                    Trimlight-01, Trimlight-02, Trimlight-03, Trimlight-04, Trimlight-05
                                                  PCB board, structure and internal of these model(s) are the same,
  Model Declaration
                                                  So no additional models were tested
  Power supply                                    DC5~24V
                                                  IEEE 802.11b:2412-2462MHz
  Operation frequency                             IEEE 802.11g:2412-2462MHz
                                                  IEEE 802.11n HT20:2412-2462MHz
                                                  IEEE 802.11b: DSSS(CCK,DQPSK,DBPSK)
  Modulation Type                                 IEEE 802.11g: OFDM(64QAM, 16QAM, QPSK, BPSK)
                                                  IEEE 802.11n: OFDM (64QAM, 16QAM, QPSK,BPSK)
  Channel Number                                  11 Channels for 20MHz bandwidth(2412~2462MHz)
  Channel Spacing                                 5MHz for IEEE 802.11b/g/n
  Antenna Description                             PCB antenna, 1.42 dBi (maximum)
  Hardware version                                V1.1
  Software version                                V1.1
  Extreme temp. Tolerance                         -20°C to +50°C
  Exposure category                               General population/uncontrolled environment
  EUT Type                                        Production Unit
  Device Type                                     Mobile Device


2. Evaluation Method
Systems operating under the provisions of FCC 47 CFR section shall be operated in a manner that ensures
that the public is not exposed to radio frequency energy level in excess of the Commission’s guidelines.
In accordance with 47 CFR FCC Part 2 Subpart J, section 2.1091 this device has been defined as mobile
device whereby a distance of 0.2m normally can be maintained between the user and the device, and below
RF Permissible Exposure limit shall comply with.

In accordance with KDB447498D01 for Simultaneous transmission MPE test exclusion applies when the sum
of the MPE ratios for all simultaneous transmitting antennas incorporated in a host device, based on the
calculated/estimated, numerically modelled or measured field strengths or power density, is ≤ 1.0. The MPE
ratio of each antenna is determined at the minimum test separation distance required by the operating
configurations and exposure conditions of the host device, according to the ratio of field strengths or power
density to MPE limit, at the test frequency. Either the maximum peak or spatially averaged results from
measurements or numerical simulations may be used to determine the MPE ratios. Spatial averaging does not
apply when MPE is estimated using simple calculations based on far-field plane-wave equivalent conditions.
The antenna installation and operating requirements for the host device must meet the minimum test
separation distances required by all antennas, in both standalone and simultaneous transmission operations,
to satisfy compliance.

3. Limit
3. 1 Refer evaluation method

ANSI C95.1–1999: IEEE Standard for Safety Levels with Respect to Human Exposure to Radio Frequency
Electromagnetic Fields, 3 kHz to 300 GHz.
FCC KDB publication 447498 D01 General 1 RF Exposure Guidance v06: Mobile and Portable Devices RF
Exposure Procedures and Equipment Authorization Policies.
FCC CFR 47 part1 1.1310: Radiofrequency radiation exposure limits.
FCC CFR 47 part2 2.1091: Radiofrequency radiation exposure evaluation: mobile devices




3. 2 Limit

    This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd.
                                                                   Page 1 of 3


 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD.                                                             FCC ID: 2ATV8TRIMLIGHT


                     Limits for Maximum Permissible Exposure (MPE)/Controlled Exposure
              Frequency         Electric Field    Magnetic Field    Power Density Averaging Time
             Range(MHz)         Strength(V/m)     Strength(A/m)        (mW/cm²)      (minute)
                                   Limits for Occupational/Controlled Exposure
               0.3 – 3.0             614               1.63              (100) *        6
               3.0 – 30             1842/f            4.89/f            (900/f2)*       6
               30 – 300              61.4             0.163                 1.0         6
              300 – 1500               /                 /                f/300         6
            1500 – 100,000             /                 /                   5          6
                    Limits for Maximum Permissible Exposure (MPE)/Uncontrolled Exposure
              Frequency         Electric Field    Magnetic Field    Power Density Averaging Time
             Range(MHz)         Strength(V/m)     Strength(A/m)        (mW/cm²)      (minute)
                                   Limits for Occupational/Controlled Exposure
               0.3 – 3.0             614               1.63              (100) *        30
               3.0 – 30             824/f             2.19/f            (180/f2)*       30
               30 – 300              27.5             0.073                 0.2         30
              300 – 1500               /                 /               f/1500         30
            1500 – 100,000             /                 /                  1.0         30

          F=frequency in MHz
          *=Plane-wave equivalent power density

4. MPE Calculation Method
Predication of MPE limit at a given distance
Equation from page 18 of OET Bulletin 65, Edition 97-01

S=PG/4πR²

Where: S=power density
       P=power input to antenna
       G=power gain of the antenna in the direction of interest relative to an isotropic radiator
       R=distance to the center of radiation of the antenna


5. Antenna Information
NeoPix Easy+ can only use antennas certificated as follows provided by manufacturer;

           Internal             Antenna type and
                                                              Operate frequency band                 Maximum antenna gain
         Identification         antenna number
              1                  PCB Antenna                  2000 MHz – 2500 MHz                             1.42 dBi



6. Conducted Power
                                                                  Frequency              Measured Peak Output Power
               Test Mode                     Channel
                                                                    (MHz)                          (dBm)
                                                1                    2412                                 8.04
             IEEE 802.11b                       6                    2437                                 7.96
                                                11                   2462                                 8.75
                                                1                    2412                                 9.35
             IEEE 802.11g                       6                    2437                                  9.5
                                                11                   2462                                 9.43
                                                1                    2412                                 9.24
         IEEE 802.11n HT20                      6                    2437                                 9.37
                                                11                   2462                                 9.24




    This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd.
                                                                   Page 2 of 3


 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD.                                                             FCC ID: 2ATV8TRIMLIGHT

7. Manufacturing Tolerance

                                                     IEEE 802.11b (Peak)
                  Channel                     Channel 1            Channel 6                             Channel 11
               Target (dBm)                      8.0                  7.0                                   8.0
              Tolerance ±(dB)                    1.0                  1.0                                   1.0
                                                     IEEE 802.11g (Peak)
                  Channel                     Channel 1            Channel 6                             Channel 11
               Target (dBm)                      9.0                  9.0                                   9.0
              Tolerance ±(dB)                    1.0                  1.0                                   1.0
                                                 IEEE 802.11n HT20 (Peak)
                  Channel                     Channel 1            Channel 6                             Channel 11
               Target (dBm)                      9.0                  9.0                                   9.0
              Tolerance ±(dB)                    1.0                  1.0                                   1.0


8. Measurement Results
8.1 Standalone MPE

As declared by the Applicant, the EUT is a wireless device used in a fix application, at least 20 cm from any
body part of the user or nearby persons; from the maximum EUT RF output power, the minimum separation
distance, r =20cm, as well as the gain of the used antenna refer to antenna information, the RF power density
can be obtained.

                                   Output power               Antenna         Antenna                                         MPE
                                                                                               Duty          MPE
   Modulation Type                                             Gain             Gain                                          Limits
                                 dBm             mW                                            Cycle       (mW/cm2)
                                                               (dBi)          (linear)                                      (mW/cm2)
     IEEE 802.11b                 9.0          7.9433          1.42           1.3868           100%          0.002193        1.0000
     IEEE 802.11g                 10.0         10.0000         1.42           1.3868           100%          0.002760        1.0000
  IEEE 802.11n HT20               10.0         10.0000         1.42           1.3868           100%          0.002760        1.0000


Remark:
1. Output power (Average) including tune-up tolerance;
2. MPE evaluate distance is 20cm from user manual provide by manufacturer;

8.2 Simultaneous Transmission MPE

The sample only support one WLAN modular and one WLAN antenna, no need consider simultaneous
transmission;


9. Conclusion

The measurement results comply with the FCC Limit per 47 CFR 2.1091 for the uncontrolled RF Exposure of
mobile device.

                             ----------------THE END OF REPORT---------------




    This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd.
                                                                   Page 3 of 3



Document Created: 2019-08-29 15:06:10
Document Modified: 2019-08-29 15:06:10

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