MPE

FCC ID: YR8ES001

RF Exposure Info

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FCCID_1374520

FCC ID：YR8ES001 Maximum Permissible Exposure as specified in Table 1B of 47 CFR 1.1310 – Limits for Maximum Permissible Exposure (MPE), Limits for General Population/Uncontrolled Exposure Frequency range (MHz) Power density (mW/cm²) 300 – 1,500 f/1500 1,500 – 100,000 1.0 Calculations 850 MHz band (824.7 – 848.31 MHz) Maximum peak output power at antenna input terminal: 33.14 dBm (~2.06 W) Predicted distance R: 20 cm Predicted frequency: 848.86 MHz MPE limit S: 0.5659 mW/cm² Equation OET bulletin 65, page 18, edition 97-01: S = P*G / (4πR²) S = power density P = power input to the antenna G = numeric gain of the antenna in the direction of interest relative to an isotropic radiator R = distance to the centre of radiation of the antenna Maximum allowable antenna gain: max 1.40 dBi Prediction The maximum allowable MPE value of 0,5498 mW/cm²will be reached in a distance of 20 cm in case that an antenna with an antenna gain of 1.40 dBi will be used. This means that the power density levels in a distance of 20 cm are in accordance with the FCC regulations as long as the used antenna has a gain below 1.40 dBi.

FCC ID：YR8ES001 Maximum Permissible Exposure as specified in Table 1B of 47 CFR 1.1310 – Limits for Maximum Permissible Exposure (MPE), Limits for General Population/Uncontrolled Exposure Frequency range (MHz) Power density (mW/cm²) 300 – 1,500 f/1500 1,500 – 100,000 1.0 Calculations 1900 MHz band (1851.25 – 1908.75 MHz) Maximum peak output power at antenna input terminal: 30.75 dBm (~1.1885 W) Prediction distance R: 20 cm Prediction frequency: 1850.14 MHz MPE limit S: 1 mW/cm² Equation OET bulletin 65, page 18, edition 97-01: S = P*G / (4πR²) S = power density P = power input to the antenna G = numeric gain of the antenna in the direction of interest relative to an isotropic radiator R = distance to the centre of radiation of the antenna Maximum allowable antenna gain for mobile/portable stations: 6.26 dBi Maximum allowable antenna gain for other stations: 2.26 dBi Prediction The maximum allowable MPE value of 1 mW/cm²will be reached in a distance of 20 cm in case that an antenna with an antenna gain of 6.26 dBi will be used. This means that the power density levels in a distance of 20 cm are in accordance with the FCC regulations as long as the used antenna has a gain below 6.26 dBi. For mobile and portable stations the EIRP is restricted to 2.0 Watts, (§24.232 (c)). Therefore the maximum antenna gain is 2.26 dBi.


Document Created: 2005-11-04 16:10:36
Document Modified: 2005-11-04 16:10:36
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