RF Exposure Report

FCC ID: INWU6

RF Exposure Info

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FCCID_1253736

BABT TCB Balfour House, Churchfield Road, Walton-on-Thames, Surrey, KT12 2TD RF EXPOSURE ANALYSIS Product FCC ID IC Team2 Base Station INWU6 6248A-N8 The product Team2 Base Station is designed to be used as an access point. This transmitter must be installed to provide a separation distance of at least 20 cm from all persons. 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: mW Frequency Range (MHz) Power density ( ) Averaging time (minutes) cm 2 f ( MHz ) 300 – 1500 30 1500 1500 – 100.000 1.0 30 The table below is excerpted from item 4.2 of RSS-102 Issue 3, titled RF Field Strength Limits for Devices Used by the General Public: W Frequency Range (MHz) Power density ( ) Averaging time (minutes) m2 300 – 1500 f (MHz ) /150 6 1500 – 100.000 10 6 The equipment Team2 Base Station transmits in the 2400 - 2483.5 MHz frequency range, so the applicable MPE limit is 1 mW/cm2. The equipment is provided with 4 Bluetooth modules WT11 (FCC ID: QOQWT11) and one WLAN module (FCC ID: NDD9573180818). Under the conditions stated above MPE limits can be guaranteed as the calculation below shows: Output power considerations: Maximum e.i.r.p. for the Bluetooth module: 13.47 dBm = 22.23 mW (Source: Report #: EF/2006/20016) Maximum e.i.r.p. for the WLAN module: 24.45 dBm = 278.61 mW

RF Exposure Evaluation: Using Equation from page 18 of OET Bulletin 65, Edition 97-01: S = P·G/4π R2 = e.i.r.p./4πR2 Where, S = power density in mW/cm2 P = power input to the antenna G = power gain of the antenna in the direction of interest relative to an isotropic radiator R = distance to the centre of radiation of the antenna in cm (20 cm Prediction distance) We obtain the following results: Source EIRP (dB) EIRP (mW) R - Evaluation distance (cm) S – Power density (mW/cm2) BT module 13.47 22.23 20 0,00442 4 BT modules 19.49 88.93 20 0,01769 WLAN module 24.45 278.61 20 0,05543 TOTAL 25.65 367.54 20 0,07312 Conclusion: The device Team2 Base Station complies with the FCC and IC limits for Maximum Permissible Exposure.


Document Created: 2010-09-03 15:44:32
Document Modified: 2010-09-03 15:44:32
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