RFx

FCC ID: YR8ES310

RF Exposure Info

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FCCID_2608363

CERPASS TECHNOLOGY CORP. Report No.: SEFI1502025-C Radio Frequency Exposure LIMIT According to §15.247(i), 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 § 1.1307(b)(1) of this chapter. EUT Specification EUT GPS Tracker Model ES310 GSM850 TX: 824~849MHz; RX: 869~894MHz Frequency band PCS1900 TX: 1850~1910MHz; RX: 1930~1990MHz (Operating) WCDMA Band II: 1850~1910MHz; RX: 1930~1990MHz WCDMA Band V: 824~849MHz; RX: 869~894MHz 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 GSM850: 31.61 dBm (1.449 W) PCS1900: 25.42 dBm (0.348 W) Max. output power WCDMA Band II: 22.64 dBm (0.095 W) WCDMA Band V: 22.14dBm (0.162 W) GSM850/ WCDMA Band V: 2.0dBi Antenna gain (Max) PCS1900/ WCDMA Band II: 2.9dBi MPE Evaluation* Evaluation applied SAR Evaluation N/A Remark: 1. The maximum output power is 31.61 dBm (1.449W) at 848.8 MHz (with numeric 1.58 antenna gain.) 2. 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. *Note: Simultaneous transmission is not applicable for this EUT. Cerpass Technology Corp. Issued date : Mar 31, 2015 Tel: 886-2-2655-8100 Fax: 886-2-2655-8200 Page No. : 1 of 3 FCC ID : YR8ES310 IC : 20052-ES310

CERPASS TECHNOLOGY CORP. Report No.: SEFI1502025-C TEST RESULTS No non-compliance noted. 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 Cerpass Technology Corp. Issued date : Mar 31, 2015 Tel: 886-2-2655-8100 Fax: 886-2-2655-8200 Page No. : 2 of 3 FCC ID : YR8ES310 IC : 20052-ES310

CERPASS TECHNOLOGY CORP. Report No.: SEFI1502025-C Maximum Permissible Exposure Max. Conducted Power Frequency Antenna Distance Limit Modulation Mode output density band (MHz) gain (dBi) (cm) (mW/cm2) power(dBm) (mW/cm2) 850 band 824~849 31.61 2.0 20 0.456 1 1900 band 1850~1910 25.42 2.9 20 0.135 1 NOTE: Total (Chain0+Chain1) , the formula of calculated the MPE is: CPD1 / LPD1 + CPD2 / LPD2 + ……etc. < 1 CPD = Calculation power density LPD = Limit of power density Cerpass Technology Corp. Issued date : Mar 31, 2015 Tel: 886-2-2655-8100 Fax: 886-2-2655-8200 Page No. : 3 of 3 FCC ID : YR8ES310 IC : 20052-ES310


Document Created: 2015-05-05 16:44:41
Document Modified: 2015-05-05 16:44:41
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