RF exposure letter

FCC ID: 2AAMI-T2240

RF Exposure Info

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FCCID_2994513

                                                                                                 TÜV Rheinland Nederland B.V.


                                                                                                 ACB                                                                                           Date
                                                                                                                                                                                               18-05-2016
                                                                                                 Certification Department
                                                                                                 6731 Whittier Avenue, Suite C110
                                                                                                 McLean, Virginia 22101
                                                                                                 USA
Version: 20101101




                                                                                                 To whom it may concern,

                                                                                                 On behalf of our customer Tacx B.V., we hereby declare the following device:

                                                                                                 FCC ID         : 2AAMI-T2240
                                                                                                 Brand          : Tacx
                                                                                                 Model          : T2240
                                                                                                 Description    : Wireless Communication Device

                                                                                                 The EUT has 2 transmitters (BLE and ANT+) which never send simultaneously. The
                                                                                                 highest output power is from the BLE part. BLE is a DXX application and no RF exposure
                                                                                                 assessment is required for the BLE part. The RF exposure assessment is based on the
                                                                                                 ANT+ mode. The EUT is considered as ‘Mobile’ use.
                                                                                                 The EUT has a maximum radiated output power in ANT+ mode of -5.46 dBm,
                                                                                                 equals 0.28 mW in the frequency range of 2402 – 2480 MHz which means that the worst
                                                                                                 case prediction of power density (100% reflection) at 20 cm distance (worst case) can be
                                                                                                 calculated as follows :

                                                                                                         EIRP
                                                                                                                 2
                                                                                                 S=     4 * π * R (power density without reflection)
                                                                                                         2
                                                                                                        2 * EIRP
                                                                                                                 2
                                                                                                 S=     4 * π * R (power density with 100% reflection)
                                                                                                         2
                                                                                                        2 * EIRP    EIRP (mW)            0.28
                                                                                                                 2             2                2                2
                                                                                                 S=     4 * π * R = π * (20cm)      =   π * (20) = 0.00022 mW/cm
® TÜV, TUEV and TUV are registered trademarks. Any use or application requires prior approval.




                                                                                                               2              2
                                                                                                 (limit =10 W/m is 1.0 mW/cm )

                                                                                                 For certain devices that are designed to be used in both mobile and portable configurations
                                                                                                 similar to those described in 47 CFR §2.1091(d)(4), such as this device, compliance for
                                                                                                 mobile configurations is also satisfied when the same device is evaluated for SAR
                                                                                                 compliance in portable configurations .
                                                                                                 The 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation
                                                                                                 distances ≤ 50 mm are determined by:
                                                                                                 [(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,

                                                                                                 For this device this is calculated as:
                                                                                                 = 0.28mW / 5mm * √2.48 GHz = 0.088 (requirement: ≤ 3.0)

                                                                                                 SAR Test Exclusion Thresholds is < 10mW and 3.0 for separation distance 5mm.
                                                                                                 Therefore, SAR test is not required.

                                                                                                 This means that the equipment is in compliance with EC OET Bulletin 65 (Edition 97-01),
                                                                                                 Supplement C (Edition 01-01).


                                                                                                                                             Eiberkamp 10
                                                                                                                                             P.O. Box 37
                                                                                                                                             9350 AA Leek
                                                                                                                                             Fax:+31 594 504804


® TÜV, TUEV and TUV are registered trademarks. Any use or application requires prior approval.   Version: 20101101




                                                                                                                     Best regards,




                                                                                                   Test Engineer
                                                                                                   R .van der Meer
                                                                                                                     TÜV Rheinland Nederland B.V.
                                                                                                                                                    TÜV Rheinland Nederland B.V.



Document Created: 2016-05-18 12:58:01
Document Modified: 2016-05-18 12:58:01

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