MPE calculation

FCC ID: EWQ100GDLRS

RF Exposure Info

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FCCID_1926651

FCC-5006-007-mpe Page 1 of 4 REGULATORY COMPLIANCE REPORT TITLE: FCC & IC MPE Report for 15.247 & RSS-210 Frequency Hopping Device Remote FCC ID: EWQ100GDLRS IC: 864D-100GDLRS IC Model: 7S AUTHOR: Mark Kvamme REV CCO DESCRIPTION OF CHANGE DATE APPROVALS Engineering 001 INITIAL RELEASE Regulatory REVISION HISTORY Engineering a initial upload Regulatory Engineering Regulatory Engineering Regulatory NOTICE OF PROPRIETARY INFORMATION Information contained herein is proprietary and is property of ITRON, Inc. where furnished with a proposal, the recipient shall use it solely to evaluate the proposal. Where furnished to a customer it shall be used solely for the purposes of inspection, installation or maintenance. Where furnished to a supplier, it shall be used solely in the performance of work contracted for this company. The information shall not be used or disclosed by the recipient for any other purpose, whatsoever. 100gdlrs mpe.docx Rev. a

FCC-5006-007-mpe Page 2 of 4 Test Data Summary FCC 15.247 / IC RSS-210; Frequency Hopping Transmitter; 100G DLS – Remote, 903MHz – 926.85 MHz for EUT FCC ID: EWQ100GDLRS IC: 864D-100GDLRS IC Device Models: 7S Part Numbers: ERG-5006-501/502/503/505 Serial Numbers: 105,16,18 OATS Registration Number: FCC 90716, IC 864D-1 Spec Pass/ Rule Description Limit Max. Reading Fail Power level 1 = 0.006 mW / cm2 @ 20 cm = 0.06 W/M2 @ 0.2 M Power level 2 Parts 1.1310 & = 0.111 mW / cm2 @ 20 cm 2.1091(mobile) or 2.1093 = 1.11 W/M2 @ 0.2 M (portable) / RSS-102 Sec Limits for Maximum Power level 3 4.2-Canada Safety Code 6; Permissible Exposure = 0.227 mW / cm2 @ 20 cm Table 5 (MPE) formula = 2.27W/M2 @ 0.2 M Pass Rule versions: FCC Part 1; FCC Part 2; FCC Part 15, RSS-102 Issue 4 (03-2010); RSS-210 Issue 8 (12-2010); RSS-Gen Issue 3 (12-2010). Reference docs: ANSI C63.4-2003; DA 00-705 (03-30-2000); OET65 (08-1997); OET65C (06-2001); IEEE C95.3-2002. Cognizant Personnel Name Title Mark Kvamme Test Technician Name Title Jay Holcomb Regulatory Manager Name Title Johann De Jager Project Lead 100gdlrs mpe.docx Rev. a

FCC-5006-007-mpe Page 3 of 4 CONDITIONS DURING TESTING No Modifications to the EUT were necessary during the testing. FCC 15.31(m) – IC _n/a_; Number of Channels This device was tested on three channels. ANSI C63.4 - Temperature and Humidity During Testing The temperature during testing was within +10º C and +40º C. The Relative humidity was between 10% and 90%. RSS-Gen 4.3 (g): Tests shall be performed at ambient temperature EQUIPMENT UNDER TEST (EUT) DESCRIPTION Itron declares that the EUT tested was representative of a production unit. EQUIPMENT UNDER TEST EUT Module Manuf: Itron, Inc. Itron p/n: ERG-5006-501/502/503/505 Serial Number(s) Listed Below Power source Fresh Batteries were used Plot Information In the zero span measurements, the line in the display is the trigger level. Peripheral Devices None 100gdlrs mpe.docx Rev. a

FCC-5006-007-mpe Page 4 of 4 1.1310 & 2.1091(mobile) or 2.1093(portable) / RSS-102 Sec 4.2-Canada Safety Code 6; Table 5 Maximum Permissible Exposure (MPE) Radiofrequency radiation exposure limits. - The criteria listed in Table 1 shall be used to evaluate the environmental impact of human exposure to radiofrequency (RF) radiation as specified in §1.1307(b), except in the case of portable devices which shall be evaluated according to the provisions of §2.1093 of this chapter. 1.1307 (b) In addition to the actions listed in paragraph (a) of this section, Commission actions granting construction permits, licenses to transmit or renewals thereof, equipment authorizations or modifications in existing facilities, require the preparation of an Environmental Assessment (EA) if the particular facility, operation or transmitter would cause human exposure to levels of radiofrequency radiation in excess of the limits in §§1.1310 and 2.1093 of this chapter. unit 103 unit 105 Field conducted conducted antenna antenna Power strength EIRP power power gain gain level (dBuV/m) (dbm) (dbm) (watts) (dbi) numeric 3 124.58 30.58 25.06 0.321 5.52 3.56 2 121.46 27.46 21.71 0.148 5.75 3.76 1 109.04 15.04 6.01 0.004 9.03 8.00 Determine the maximum power density for the general / uncontrolled population minimum separation distance of 20 cm. (fMHz / 1500 mW/cm2 == fMHz / 150 W/M2 ) The power density is calculated as: Pd = power density in mW/cm2 Pt × G Pt = transmit power in milliwatts Pd = 4×π × r2 G = numeric antenna gain r = distance between body and transmitter in centimeters. FCC Limits: 926.8MHz / 1500 = 0.618 mW / cm2 @ 20cm IC Limits: 926.8MHz / 150 = 6.18 W / M2 (@ 0.2M) Power level 3 Max antenna gain = 5.52 dBi = 3.56 numeric Max TX power = 25.06 dBm = 321 milliwatts results: PD = (321 x 3.56) / ( 4 x pi x 20cm2) = 0.227 mW / cm2 @ 20 cm W/m2 = 10 times mW/cm2 = 2.27W/M2 @ 0.2 M Power level 2 Max antenna gain = 5.75 dBi = 3.76 numeric Max TX power = 21.71 dBm = 148 milliwatts results: PD = (148 x 3.76) / ( 4 x pi x 20cm2) = 0.111 mW / cm2 @ 20 cm W/m2 = 10 times mW/cm2 = 1.11 W/M2 @ 0.2 M Power level 1 Max antenna gain = 9.03 dBi = 8.00 numeric Max TX power = 6.01 dBm = 4 milliwatts results: PD = (4 x 8.00) / ( 4 x pi x 20cm2) = 0.006 mW / cm2 @ 20 cm W/m2 = 10 times mW/cm2 = 0.06 W/M2 @ 0.2 M 100gdlrs mpe.docx Rev. a


Document Created: 2013-03-01 07:13:30
Document Modified: 2013-03-01 07:13:30
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