MPE

FCC ID: KBCIX300AC775WLBT

RF Exposure Info

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FCCID_505285

Applicant: ITRONIX, Corp. FCC ID: KBCIX300AC775WLBT EXHIBIT 11 - MPE CALCULATION DATA Model: IX300 with the three co-located transmitters listed below. 1.) AirCard775, (WAN) GSM850 S (mw/cm^2) at 20cm = 0.14529791 Tx Freq: 836.6 MHz Antenna Gain: -2.8 dBi Max Peak Conducted Power @ antenna terminal input: 31.44 dBm Channel # Frequency (MHz) Peak Power (Watts) Peak Power (dBm) GSMK Mode GSMK Mode (Ch.128) 824.2 1.39 31.43 (Ch.190) 836.6 1.39 31.44 (Ch.251) 848.8 1.37 31.38 2.) AirCard775, (WAN) PCS1900 S (mw/cm^2) at 20cm = 0.218403386 Tx Freq: 1850.20 MHz Antenna Gain: 2.0 dBi Max Peak Conducted Power @ antenna terminal input: 28.41 dBm Channel # Frequency (MHz) Peak Power (Watts) Peak Power (dBm) GSMK Mode GSMK Mode (Ch.512) 1850.2 0.684 28.35 (Ch.661) 1880.0 0.693 28.41 (Ch.810) 1909.8 0.687 28.37 3.) WM168b-Molex, (WLAN) S (mw/cm^2) at 20cm = 0.0039 Tx Freq: 2412 MHz Antenna Gain: -3.04 dBi Max Peak Conducted Power @ antenna terminal input: 16.03 dBm Frequency Power Cable loss Corrected Level Ant. Gain EIRP GHz dBm dBm dBi 2.412 15.45 .58 16.03 -3.04 12.99 2.437 15.30 .58 15.88 -3.04 12.84 2.462 14.97 .58 15.55 -3.04 12.51 Exhibit 11 1

Applicant: ITRONIX, Corp. FCC ID: KBCIX300AC775WLBT 4.) MUBTC2-TH, (Bluetooth) S (mw/cm^2) at 20cm = 0.0002 Tx Freq: 2441MHz Antenna Gain: 0.11 dBi Max Peak Conducted Power @ antenna terminal input: 0.557dBm Channel Frequency Measured Peak Internal Corrected Peak Corrected (GHz) Output EUT Output Peak Output Power Cable loss Power Power (dBm) dB (dBm)) (mW)) Low 2.402 -0.932 1.3 .368 1.088 Middle 2.441 -0.743 1.3 .557 1.137 High 2.480 -1.273 1.3 .027 1.006 Multiple Frequency Exposure Requirements The AC775 WAN and Bluetooth can transmit at the same time. The WLAN and Bluetooth can transmit at the same time. The AC775 WAN and WLAN cannot transmit at the same time. In normal operation all three cannot transmit at the same time. However for worst case multi-frequency exposure we shall include all three transmitters The MPE calculations are submitted for multiple frequency exposure criteria. The ratio of the field strength or power density to the applicable exposure limit at the exposure location was determined for each transmitter below and the sum of these ratios does not exceed the 1 mW/cm^2 limit for uncontrolled exposure / general population exposure limits detailed in CFR 47, Part 1.1310. Multiple Frequency Exposure Requirements with GSM850 Ratio 1 Ratio 2 Ratio 3 Limit AIRCARD775 WLAN Bluetooth 0.1453 /0.56 0.0039 / 1 0.0002 / 1 <1.0 = .2595 = .0039 = .0002 <1.0 Sum = 0.2636 (mW/cm^2) <1.0 Multiple Frequency Exposure Requirements with PCS1900 Ratio 1 Ratio 2 Ratio 3 Limit AIRCARD775 WLAN Bluetooth 0.2184 / 1 0.0039 / 1 0.0002 / 1 <1.0 = .2184 = .0039 = .0002 <1.0 Sum = 0.2225 (mW/cm^2) <1.0 Prediction of MPE Limit OET Bulletin 65, Edition 97-01 ________ S = PG/4πR 2 R = √ PG/4πS S= power density 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 center of radiation of the antenna Exhibit 11 2

Applicant: ITRONIX, Corp. FCC ID: KBCIX300AC775WLBT General Population/Uncontrolled 1.) AirCard775, (WAN) GSM850 Tx Frequency: 836.60 MHz Max. Peak Power Antenna Input Terminal: 31.44 dBm Antenna gain: -2.80 dBi S= 0.56 (mW/cm^2) P= 1393.1568 (mW) G= 0.52 (numeric) R = 10.21 (cm) S (mw/cm^2) at 20cm = 0.14529791 2.) AirCard775, (WAN) PCS1900 Tx Frequency: 188000 MHz Max. Peak Power Antenna Input Terminal: 28.41 dBm Antenna gain: 2.00 dBi S= 1.00 (mW/cm^2) P= 693.4258 (mW) G= 1.58 (numeric) R = 9.35 (cm) S (mw/cm^2) at 20cm = 0.218403386 3.) WM168b-Molex, (WLAN) Tx Frequency: 2412.00 MHz Max. Peak Power Antenna Input Terminal: 16.03 dBm Antenna gain: -3.04 dBi S= 1.00 mW/cm^2) P= 40.0867 (mW) G= 0.50 (numeric) R= 1.26 (cm) S (mw/cm^2) at 20cm = 0.003956028 4.) MUBTC2-TH, (Bluetooth) Tx Frequency: 2441.00 MHz Max. Peak Power Antenna Input Terminal: 0.56 dBm Antenna gain: 0.11 dBi S= 1.00 (mW/cm^2) P= 1.1368 (mW) G= 1.03 (numeric) R = 0.30 (cm) S (mw/cm^2) at 20cm = 0.000231718 Exhibit 11 3


Document Created: 2004-11-19 15:39:00
Document Modified: 2004-11-19 15:39:00
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