MPE

FCC ID: JNF-Z-2060S

RF Exposure Info

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FCCID_1051789

Compliance Certification Services Inc. Report No.: 81118203-RP1 FCC ID: JNF-Z-2060S Date of Issue: December 19, 2008 APPENDIX I RADIO FREQUENCY EXPOSURE LIMIT 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 levels in excess of the Commission's guidelines. See §15.247(i) and §1.1307(b)(1) of this chapter. EUT Specification EUT Windows CE.NET Handheld Computer WLAN: 2.412GHz ~ 2.462GHz WLAN: 5.18GHz ~ 5.32GHz / 5.50GHz ~ 5.70GHz Frequency band (Operating) WLAN: 5.745GHz ~ 5.825GHz Bluetooth: 2.402GHz ~ 2.480 GHz Portable (<20cm separation) Device category Mobile (>20cm separation) Occupational/Controlled exposure (S = 5mW/cm2) Exposure classification General Population/Uncontrolled exposure (S=1mW/cm2) Single antenna Multiple antennas Antenna diversity Tx diversity Rx diversity Tx/Rx diversity IEEE 802.11b: 12.81 dBm (19.09mW) Max. output power IEEE 802.11g: 12.65 dBm (18.40mW) Antenna gain (Max) 1.5 dBi (Numeric gain: 1.41) MPE Evaluation* Evaluation applied SAR Evaluation N/A Remark: 1. This device is for handheld operation only. 2. The maximum output power is 12.81dBm (19.09mW) at 2437MHz (with 1.41 numeric antenna gain.) 3. DTS device is not subject to routine RF evaluation; MPE estimate is used to justify the compliance. 4. For mobile or fixed location transmitters, no SAR consideration applied. The maximum power density is 1.0 mW/cm2 even if the calculation indicates that the power density would be larger. TEST RESULTS No non-compliance noted. Page 58 Rev. 00

Compliance Certification Services Inc. Report No.: 81118203-RP1 FCC ID: JNF-Z-2060S Date of Issue: December 19, 2008 Calculation 30 × P × G E2 Given E= & S= d 3770 Where E = Field strength in Volts / meter P = Power in Watts G = Numeric antenna gain d = Distance in meters S = Power density in milliwatts / square centimeter Combining equations and re-arranging the terms to express the distance as a function of the remaining variables yields: 30 × P × G S= 3770d 2 Changing to units of mW and cm, using: P (mW) = P (W) / 1000 and d (cm) = d(m) / 100 Yields 30 × (P / 1000 ) × G P×G S= = 0.0796 × Equation 1 3770 × (d / 100 ) 2 d2 Where d = Distance in cm P = Power in mW G = Numeric antenna gain S = Power density in mW / cm2 Maximum Permissible Exposure EUT output power = 19.09 mW Numeric Antenna gain = 1.41 Substituting the MPE safe distance using d = 20 cm into Equation 1: Yields S = 0.000199 × P × G Where P = Power in mW G = Numeric antenna gain S = Power density in mW / cm2 Æ Power density = 0.00535 mW / cm2 (For mobile or fixed location transmitters, the maximum power density is 1.0 mW/cm2 even if the calculation indicates that the power density would be larger.) Page 59 Rev. 00


Document Created: 2008-12-26 12:02:28
Document Modified: 2008-12-26 12:02:28
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