Coros Wearables Inc. W521 APEX 2 Pro 2AEHH-W521 2AEHHW521 w521
Shenzhen CTB Testing Co., Ltd. FCC ID: 2AEHH-W521 Portable device According to §15.247(e)(i) and §1.1307(b)(1), 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 level in excess of the Commission's guidelines. According to KDB447498 D01 General RF Exposure Guidance V06 The 1-g SAR 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, 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 When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion. EDR: Conduct Max Channel ed Conducte Tune-up tune-up Modulation Freq. power d power power power (GHz) (dBm) (mW) (dBm) (dBm) Max tune-up power (mW) Result SAR Distance (mm) calculatio Exclusion n threshold SAR test exclusion 2.402 2.964 1.98 2±1 3.00 2.00 GFSK 2.441 3.082 2.03 3±1 4.00 2.51 2.480 2.69 1.86 2±1 3.00 2.00 2.402 1.985 1.58 1±1 2.00 1.58 /4DQPSK 2.441 3.78 2.39 3±1 4.00 2.51 2.480 2.531 1.79 2±1 3.00 2.00 2.402 2.262 1.68 2±1 3.00 2.00 8DQPSK 2.441 4.013 2.52 4±1 5.00 3.16 2.480 2.697 1.86 2±1 3.00 2.00 <5 0.61847 3.00 <5 0.78490 3.00 <5 0.62843 3.00 <5 0.49127 3.00 <5 0.78490 3.00 <5 0.62843 3.00 <5 0.61847 3.00 <5 0.98813 3.00 <5 0.62843 3.00 YES YES YES YES YES YES YES YES YES BLE: Conduct Max Channel ed Conducte Tune-up tune-up Modulation Freq. power d power power power (GHz) (dBm) (mW) (dBm) (dBm) Max tune-up power (mW) Result SAR Distance (mm) calculatio Exclusion n threshold SAR test exclusion 2.402 -0.121 0.97 0±1 1.00 1.26 GFSK 2.44 1.101 1.29 1±1 2.00 1.58 2.480 0.126 1.03 0±1 1.00 1.26 <5 0.39023 3.00 <5 0.49514 3.00 <5 0.39651 3.00 YES YES YES Shenzhen CTB Testing Co., Ltd. 2.4GWIFI: Conduct Max Channel ed Conducte Tune-up tune-up Modulation Freq. power d power power power (GHz) (dBm) (mW) (dBm) (dBm) Max tune-up power (mW) Result SAR Distance (mm) calculatio Exclusion n threshold SAR test exclusion 2.412 4.795 3.02 4±1 5.00 3.16 802.11b 2.437 4.665 2.93 4±1 5.00 3.16 2.462 4.373 2.74 4±1 5.00 3.16 2.412 3.972 2.50 3±1 4.00 2.51 802.11g 2.437 3.424 2.20 3±1 4.00 2.51 2.462 3.726 2.36 3±1 4.00 2.51 2.412 3.525 2.25 3±1 4.00 2.51 802.11n( HT20) 2.437 3.508 2.24 3±1 4.00 2.51 2.462 3.714 2.35 3±1 4.00 2.51 <5 0.98224 3.00 <5 0.98732 3.00 <5 0.99237 3.00 <5 0.78022 3.00 <5 0.78426 3.00 <5 0.78827 3.00 <5 0.78022 3.00 <5 0.78426 3.00 <5 0.78827 3.00 YES YES YES YES YES YES YES YES YES Conclusion: BT+WIFI supported simultaneous transmission: BT+2.4GWIFI=0.98813+0.99237=1.98053, So passed.Microsoft Word 2016 Microsoft Word 2016