SAR exclusion

FCC ID: 2ARNH-13631680

RF Exposure Info

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FCCID_4152714

TÜV SÜD Product Service, Octagon House, Concorde Way, Segensworth North, Fareham, Hampshire, United Kingdom, PO15 5RL Tel: +44 (0) 1489 558100 Website: www.tuv-sud.co.uk COMMERCIAL-IN-CONFIDENCE SAR EXCLUSION DOCUMENT Document 75943624-12 Issue 01 CE4 Tagger V4 13.56 MHz Transmitter: FCC Standalone SAR Test Exclusion Considerations (KDB 447498 D01) Section 4.3.1 c) <100 MHz – Separation Distance ≤50 mm or Separation Distance >50 mm and <200 mm The 1g head or body SAR test exclusion thresholds for <100 MHz are determined by the following steps: Step a) Threshold result from Formula in Section 4.3.1 a); [(max power of channel, including tune-up tolerance, mW) / (min. test separation distance, mm)] [√f(GHz)] ≤ 3.0 for 1g SAR. • 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 maximum test separation distance is < 5 mm, a distance of 5 mm is applied. Step b) requires formula to be re-arranged to give power allowed at numeric threshold at 50 mm test separation distance and Step c) requires f (GHz) to be set to 100 MHz (0.1 GHz) giving: Step a) Power threshold = (3 * 50) / (√0.1) = 474.3 mW Step b) Threshold result from Formula in Section 4.3.1 b) 1); {[Power allowed at numeric threshold for 50 mm {Formula Step A})] + [(test separation distance – 50 mm)·(f(MHz)/150)]} mW • fMHz is the RF channel transmit frequency in MHz. • Power and distance are rounded to the nearest mW and mm before calculation. • The result is rounded to one decimal place for comparison Power threshold = 474.3 mW + [(test separation distance – 50 mm)·(f(MHz)/150)]} mW Step c) requires f (MHz) to be set to 100 MHz giving: Step b) Power threshold = 474.3 mW + [(test separation distance – 50 mm)·(100)/150)] mW Approved by Date 21 November 2018 Matthew Russell Authorised Signatory 2018 Not to be reproduced, except in its entirety, without the permission of TÜV SÜD Product Service Page 1 of 4

COMMERCIAL-IN-CONFIDENCE DOCUMENT 759943624-12 Issue 01 CONTINUATION PAGE Step c) 1) Threshold result from Formula in Section 4.3.1 c) 1); >50 mm and <200 mm Threshold result from Formula in Section 4.3.1 b) 1) is multiplied by [1+log(100/f MHz)] Power threshold = [474.3 mW + (test separation distance – 50 mm)· (100)/150)] * [1+log(100/fMHz)] mW • fMHz is the RF channel transmit frequency in MHz. • Power and distance are rounded to the nearest mW and mm before calculation. • The result is rounded to one decimal place for comparison Step c) 2) Threshold result from Formula in Section 4.3.1 c) 2); ≤50 mm Threshold result from the formula in 4.3.1 c) 1) above for >50 mm and <200 mm for 50 mm and 100 MHz is multiplied by 0.5. Power threshold = [474.3 mW + (50 mm – 50 mm)· (100)/150)] * [1+log(100/fMHz)] * 0.5 mW Which simplifies to: Power threshold = 474.3 mW * [1+log(100/fMHz)] * 0.5 mW • fMHz is the RF channel transmit frequency in MHz. • Power and distance are rounded to the nearest mW and mm before calculation. • The result is rounded to one decimal place for comparison SAR Exclusion Result (1 g Head or Body) Frequency Maximum Test Separation SAR Exclusion SAR Test (MHz) Power (Tune up Distance Power Threshold Exclusion Value) * (mm) Section 4.3.1 c) (Yes/No) (mW) (mW) 13.56 4 25 443 Yes *Tune-up value is the maximum declared conducted output power of the device. The SAR exclusion threshold has been evaluated using the formula described above from information supplied by the manufacturer below. Based on the calculation above, the EUT is categorically excluded from SAR testing 2018 Not to be reproduced, except in its entirety, without the permission of TÜV SÜD Product Service Page 2 of 3

COMMERCIAL-IN-CONFIDENCE DOCUMENT 759943624-12 Issue 01 CONTINUATION PAGE Manufacturer’s Declaration of Product information (extract): Product Description: Hand held electronic tester Model number: CE4 Tagger V4 Antenna length (cm): 4.5 x 4.5 Centimetres (cm) (4 turn coil) Frequency range: Bottom frequency: MHz Middle frequency: 13.56 MHz Top frequency: MHz Maximum power (input to the antenna including a 0.00398 W tolerance): Antenna gain (or maximum gain allowed): 0 dBi Or Field Strength Measurement dBµA/M Measurement Distance cm Separation distance from antenna to the user/bystander: 2.5 cm Transmitter Duty Cycle: 20 % 2018 Not to be reproduced, except in its entirety, without the permission of TÜV SÜD Product Service Page 3 of 3


Document Created: 2018-11-21 14:26:16
Document Modified: 2018-11-21 14:26:16
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