RF Exposure_LE910C1-ST

FCC ID: RI7LE910C1ST

RF Exposure Info

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FCCID_4214588

DEKRA Testing and Certification S.A.U.TCB Parque Tecnológico de Andalucía Severo Ochoa, 2 & 6 29590 Málaga Spain Date: December 19th, 2018 Report: 58506_LE910C1-ST RF exposure analysis for the equipment – Maximum Antenna Gain Model: LE910C1-ST FCC ID: RI7LE910C1ST IC: 5131A-LE910C1ST The device Telit LE910C1-ST is a module designed to be installed in other devices. This device is to be used only for fixed and mobile applications. If the final product after integration is intended for portable use, new applications and FCC and IC are required. The antenna(s) used for this transmitter must be installed to provide a separation distance of at least 20 cm from all the persons and must not be co-located or operating in conjunction with any other antenna or transmitter except as under the conditions described KDB 447498 D01 General RF Exposure Guidance. MPE exposure limits The table below is excerpted from Table 1B of 47 CFR 1.1310 titled Limits for Maximum Permissible Exposure (MPE), Limits for General Population/Uncontrolled Exposure: Frequency Range (MHz) Power density (mW/cm2) Averaging time (minutes) 300 – 1500 f (MHz) /1500 30 1500 – 100.000 1,0 30 The table below is excerpted from RSS-102, Issue 5, 4, titled “Table 4: RF Field Strength Limits for Devices Used by the General Public”: Frequency Range (MHz) Power density (W/m2) Averaging time (minutes) 300 – 6000 0.02619·f 0.6834 6 EIRP limits Maximum Frequency conducted FCC MPE IC MPE FCC/IC FCC EIRP IC EIRP (MHz) output Band limit limit MPE limit limit limit (Lowest power (per (mW/cm2) (mW/cm2) (mW/cm2) (W) (W) Frequency) tune-up) (dBm) FDD 71 663,0 25,00 0,442 - 0,44200 4,92 - FDD 12 699,0 25,00 0,466 0,230 0,23017 4,92 5,00 FDD 4 1710,0 25,00 1,000 0,424 0,42419 1,00 1,00 FDD 66 1710,0 25,00 1,000 0,424 0,42419 1,00 1,00 FDD 2 1850,0 25,00 1,000 0,448 0,44763 2,00 2,00 PG Using the equation S to calculate the exposure to electromagnetic fields 4R 2 where: S = power density (in appropriate units, e.g. mW/cm 2) P = power input to the antenna (in appropriate units, e.g., mW) G = power gain of the antenna in the direction of interest relative to an isotropic radiator R = distance to the center of radiation of the antenna (appropriate units, e.g., cm)

The maximum antenna gain that can be used in the LE910C1-ST is shown in the following table: Maximum Evaluation Maximun Maximun antenna Frequency Antenna gain to Antenna gain to Antenna gain to conducted FCC MPE FCC/IC MPE distance for antenna gain to gain to meet all the (MHz) Duty cicle IC MPE limit FCC EIRP limit IC EIRP limit meet FCC/IC meet FCC EIRP meet IC EIRP Band output power limit 2 limit compliance with meet all the limits per frequency (Low est (%) (mW/cm ) (W) (W) MPE limit limit limit (per tune-up) (mW/cm2) (mW/cm2) MPE limits limits band Frequency) (dBi) (dBi) (dBi) (dBm) (cm) (dBi) (dBi) FDD 71 663,0 25,00 100,0% 0,442 - 0,44200 4,92 - 20 8,46 11,91 - 8,46 5,63 FDD 12 699,0 25,00 100,0% 0,466 0,230 0,23017 4,92 5,00 20 5,63 11,91 11,98 5,63 FDD 4 1710,0 25,00 100,0% 1,000 0,424 0,42419 1,00 1,00 20 8,28 5,00 5,00 5,00 5,00 FDD 66 1710,0 25,00 100,0% 1,000 0,424 0,42419 1,00 1,00 20 8,28 5,00 5,00 5,00 FDD 2 1850,0 25,00 100,0% 1,000 0,448 0,44763 2,00 2,00 20 8,52 8,01 8,01 8,01 8,01 And according to these maximum antenna gains calculated, the spectral power density for each band is shown in the table below: Maximum Evaluation Frequency conducted Antenna FCC/IC MPE FCC/IC distance for PG Band (MHz) output power Duty cicle gain limit FCC EIRP limit IC EIRP limit EIRP limit compliance S  MPE Ratio (Low est (per tune-up) (%) (dBi) (mW/cm 2) (W) (W) (W) with MPE 4R 2 (S/MPE limit) Frequency) (dBm) limits (cm) FDD 71 663,0 25,00 100,0% 5,63 0,44200 4,92 - 4,92 20 0,23000 0,52036 FDD 12 699,0 25,00 100,0% 5,63 0,23017 4,92 5,00 4,92 20 0,23000 0,99926 FDD 4 1710,0 25,00 100,0% 5,00 0,42419 1,00 1,00 1,00 20 0,19894 0,46899 FDD 66 1710,0 25,00 100,0% 5,00 0,42419 1,00 1,00 1,00 20 0,19894 0,46899 FDD 2 1850,0 25,00 100,0% 8,01 0,44763 2,00 2,00 2,00 20 0,39786 0,88881 According to the tables above, the maximum gain allowed to be compliant to the Normative Document is 5.63 dBi for the 600 MHz band, 5.00 dBi for 1700 MHz band and 8.01 dBi for the 1800 MHz band, based on a 20 cm distance between antenna and human body. Yours sincerely, P.A. _______________________________ By: Ken Bednasz Title: VP Application Engineer Company: Telit Communications S.p.A. Telephone: 1-919-415-1517 e-mail: Ken.Bednasz@telit.com


Document Created: 2018-12-28 13:58:46
Document Modified: 2018-12-28 13:58:46
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