RF exposure evaluation

FCC ID: 2ARDCSP-006

RF Exposure Info

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FCCID_4030672

 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD.                                                                   FCC ID: 2ARDCSP-006

                                               FCC RF Exposure Evaluation

         1. Product Information

        FCC ID:                                 2ARDCSP-006
        Product name                            Bluetooth speaker
                                                SP-006, SP-010, SP-011, SP-012, SP-013, SP-014, SP-015, SP-016,
        Model number
                                                SP-017, SP-018
                                                DC 3.7V by Li-ion battery(1200mAh)
        Power supply
                                                Recharged by DC 5V/500mA
        Modulation Type                         GFSK, π/4-DQPSK for Bluetooth V4.2 (BT Classics)
        Channel Number                          79 channels for Bluetooth V4.2 (BT Classics)
        Channel Spacing                         1MHz for Bluetooth V4.2 (BT Classics)
        Antenna Type                            PCB Antenna
        Antenna Gain                            0 dBi (maximum)
        Hardware version                        V6.0
        Software version                        V2.0
        Bluetooth Operation frequency           2402MHz-2480MHz
        Exposure category                       General population/uncontrolled environment
        EUT Type                                Production Unit
        Device Type                             Portable Device
        Model Declaration                       /


         2. Evaluation Method and Limit

         According to KDB447498 D01 General RF Exposure Guidance v06 Section 4.3.1 Standalone SAR test
         exclusion considerations: “Unless specifically required by the published RF exposure KDB procedures,
         standalone 1-g head or body and 10-g extremity SAR evaluation for general population exposure conditions,
         by measurement or numerical simulation, is not required when the corresponding SAR Test Exclusion
         Threshold condition, listed below, is satisfied. These test exclusion conditions are based on source-based
         time-averaged maximum conducted output power of the RF channel requiring evaluation, adjusted for
         tune-up tolerance, and the minimum test separation distance required for the exposure conditions.22 The
         minimum test separation distance is determined by the smallest distance from the antenna and radiating
         structures or outer surface of the device, according to the host form factor, exposure conditions and
         platform requirements, to any part of the body or extremity of a user or bystander (see 5) of section 4.1).
         To qualify for SAR test exclusion, the test separation distances applied must be fully explained and justified
         by the operating configurations and exposure conditions of the transmitter and applicable host platform
         requirements, typically in the SAR measurement or SAR analysis report, according to the required published
         RF exposure KDB procedures. When no other RF exposure testing or reporting is required, a statement of
         justification and compliance must be included in the equipment approval, in lieu of the SAR report, to
         qualify for the SAR test exclusion. When required, the device specific conditions described in the other
         published RF exposure KDB procedures must be satisfied before applying these SAR test exclusion
         provisions; for example, handheld PTT two-way radios, handsets, laptops & tablets etc.“
         [(max. power of channel, including tune-up tolerance, mW)/ (min. test separation distance, mm)] · [√f (GHz)]
         ≤ 3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR, where:
         • f (GHz) is the RF channel transmit frequency in GHz
         • Power and distance are rounded to the nearest mW and mm before calculation
         • The result is rounded to one decimal place for comparison

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     This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd.
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 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD.                                                                   FCC ID: 2ARDCSP-006

         • 3.0 and 7.5 are referred to as the numeric thresholds in the step 2 below
          The test exclusions are applicable only when the minimum test separation distance is ≤ 50 mm and for
          transmission frequencies between 100 MHz and 6 GHz. When the minimum test separation distance is < 5
          mm, a distance of 5 mm according to 5) in section 4.1 is applied to determine SAR test exclusion.

          When one of the following test exclusion conditions is satisfied for all combinations of simultaneous
          transmission configurations, further equipment approval is not required to incorporate transmitter
          modules in host devices that operate in the mixed mobile and portable host platform exposure conditions.
          The grantee is responsible for documenting this according to Class I permissive change requirements.
          Antennas that qualify for standalone SAR test exclusion must apply the estimated standalone SAR to
          determine simultaneous transmission test exclusion.
          a) The [∑ of (the highest measured or estimated SAR for each standalone antenna configuration,
              adjusted for maximum tune-up tolerance) / 1.6 W/kg] + [∑ of MPE ratios] is ≤ 1.0.
          b) The SAR to peak location separation ratios of all simultaneously transmitting antenna pairs operating
              in portable device exposure conditions are all ≤ 0.04, and the [∑ of MPE ratios] is ≤ 1.0.

         3. 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 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 2.1093: Radiofrequency radiation exposure evaluation: portable devices

         4. Conducted Power Results

                      Mode              Channel        Frequency(MHz)          Peak Conducted Output Power (dBm)
                                            0                 2402                                0.595
                      GFSK                  39                2441                                0.737
                                            78                2480                                0.294
                                            0                 2402                                0.400
                   π/4DQPSK                 39                2441                                0.502
                                            78                2480                                0.049

         5. Manufacturing Tolerance

                                                               GFSK (Peak)
                     Channel                     Channel 0                    Channel 39                    Channel 78
                  Target (dBm)                         0                            0                             0
                Tolerance ±(dB)                      1.0                           1.0                           1.0
                                                            π/4DQPSK (Peak)
                     Channel                     Channel 0                    Channel 39                    Channel 78
                  Target (dBm)                         0                            0                             0
                Tolerance ±(dB)                      1.0                           1.0                           1.0

         6. Evaluation Results


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     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: 2ARDCSP-006

         6.1 Standalone Evaluation

                                         Antenna Distance            RF output power            SAR Test Exclusion        SAR Test
         Band/Mode           f (GHz)
                                              (mm)                   dBm            mW             Threshold              Exclusion
             GFSK             2.450                5                1.0000         1.2589             0.4 < 3.0              Yes
          π/4DQPSK            2.450                5                1.0000         1.2589             0.4 < 3.0              Yes

         Remark:
         1. Output power including tune up tolerance;
         2. When the minimum test separation distance is < 5 mm, a distance of 5 mm according to f) in section 4.1
         of KDB447498 is applied to determine SAR test exclusion.

         6.2 Simultaneous Transmission for SAR Exclusion

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

         7. Conclusion

         The measurement results comply with the FCC Limit per 47 CFR 2.1093 for the uncontrolled RF Exposure
         and SAR Exclusion Threshold per KDB 447498 v06.




                              .......................THE END OF REPORT.........................




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     This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd.
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Document Created: 2018-10-10 11:35:09
Document Modified: 2018-10-10 11:35:09

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