03 FCC RF Exposure_DSS

FCC ID: AK8PCMD10

RF Exposure Info

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FCCID_4052249

Sony Global Manufacturing & Operations Corporation EMC/RF Test Laboratory, Main Lab. Kisarazu Site 8-4 Shiomi Kisarazu-shi, Chiba, 292-0834 Japan Date: October 09, 2018 FCC ID : AK8PCMD10 Applicant : Sony Corporation SAR Evaluation Exemption To whom it may concern, We, Sony Global Manufacturing & Operations Corporation EMC/RF Test Laboratory, Main Lab., hereby declare that Linear PCM Recorder, model: PCM-D10 (FCC ID: AK8PCMD10) of Sony Corporation is exempt from RF exposure SAR evaluation, as its output power meets the exclusion limits, stated in FCC Part 2 §2.1093. According to KDB 447498 D01 (v06), section 4.3.1: … These test exclusion conditions are based on source-based time-averaged (i.e. frame 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. … 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, 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 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 is applied to determine SAR test exclusion. For above device, Regarding Bluetooth BR/EDR; f = 2.48 GHz, distance = 5mm (the min. separation distance is < 5 mm), the max. possible duty cycle = 83.3% = -0.79 dB, (* xDH5: 83.3% = (On time; 625 μs * 5 slots) / (On time + Off time; 625 μs * 6 slots) ) the max. possible burst averaged power incl. tune-up tolerance = 6.00 dBm, and the max. possible frame averaged power incl. tune-up tolerance = 6.00 + (-0.79) = 5.21 dBm ≈ 3 mW. Therefore, 3 mW / 5 mm * ( √ 2.48 GHz) = 0.9 < 3.0 and no SAR evaluation is required. Thank you for your attention to this matter. Sincerely, Teruki Kurihara Technical Manager EMC/ RF Test Laboratory Main Lab. Design Technology Division Sony Global Manufacturing & Operations Corporation


Document Created: 2018-10-23 13:37:22
Document Modified: 2018-10-23 13:37:22
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