IX250 MPE

FCC ID: LDK102040

RF Exposure Info

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FCCID_171749

CELLTECH RESEARCH INC. Test Report S/N: 080101-138LDK
1955 Moss Court, Kelowna Date(s) of Tests: August 01, 2001
B.C. Canada V1Y 9L3 FCC MPE Measurements
_________________________________________________________________________________________________________

TABLE OF CONTENTS

1.0 INTRODUCTION………………………………………………………… 1

2.0 DESCRIPTION OF EUT………..………………………..……………… 1

3.0 MPE MEASUREMENT GUIDELINES.………………………………... 2

4.0 DEFINITION...….………………………………………………………… 2

5.0 MPE LIMITS……………………………..………………………………. 3-4

6.0 DETAILS OF MPE EVALUATION……………………………………. 5

7.0 MPE EVALUATION SUMMARY…..………………………………….. 6-7

8.0 SYSTEM CALIBRATION……………….…………………………….... 8

9.0 SYSTEM SPECIFICATIONS.…………………………………………... 8

10.0 REFERENCES……………………………………………………………. 8

APPENDIX A - MPE TEST SETUP PHOTOGRAPHS……….…..……………. 9

APPENDIX B - ANTENNA SPECIFICATIONS…………….……………….…. 10

© 2001 Celltech Research Inc.

CELLTECH RESEARCH INC. Test Report S/N: 080101-138LDK
1955 Moss Court, Kelowna Date(s) of Tests: August 01, 2001
B.C. Canada V1Y 9L3 FCC MPE Measurements
_________________________________________________________________________________________________________

SCOPE
Environmental evaluation measurements of Maximum Permissible Exposure (MPE) to radio
frequency (RF) radiation from transmitting devices for compliance with the technical rules and
regulations of the U.S. Federal Communications Commission (1).

1.0 INTRODUCTION

This measurement report describes the Maximum Permissible Exposure (MPE) tests of Cisco
Systems Inc. Models: AIR-LMC350, AIR-LMC352 2.4GHz Wireless LAN Card FCC ID:
LDK102040 installed in Itronix IX250 Laptop PC with vehicle cradle and two (2) vehicle
rooftop magnetic mount antennas as described in this report. The test procedures described in
FCC CFR47 2.1091, 1.1310, American National Standards Institute C95.1-1992 (2), C95.3-1992
(3), and FCC OET Bulletin 65 (Edition 97-01)(4) were employed. A description of the product
and operating configuration, detailed summary of the test results, methodology and procedures
used in the evaluation, equipment used, and the various provisions of the rules are included
within this test report.

2.0 DESCRIPTION of Equipment Under Test (EUT)

2.4GHz DSSS Wireless
LAN Card installed in
Part 15
Itronix IX250 Laptop PC
EUT Type Equipment Class Spread Spectrum
with Vehicle Cradle & (2)
Transmitter (DSS)
Vehicle Rooftop Magnetic
Mount Antennas
Tx Frequency
2412 - 2462 FCC ID LDK102040
Range (MHz)
Conducted 18.30 dBm (2412 MHz)
AIR-LMC350
Output Power 18.80 dBm (2437 MHz) Model(s)
AIR-LMC352
Tested 19.00 dBm (2462 MHz)
Application FCC Part 15 Signal Direct Sequence
Type (Class I I Permissive Change) Modulation(s) Spread Spectrum
#1. MaxRad BMAXC24503
Add (2) Vehicle
Class II ( 3dBi Gain)
Rooftop Magnetic Antenna Type(s) #2. MaxRad BMAXC24505
Change(s)
Mount Antennas (5dBi Gain)

© 2001 Celltech Research Inc. CISCO SYSTEMS INC. FCC ID: LDK102040 1
2.4GHz Spread Spectrum PCMCIA Wireless LAN Card

CELLTECH RESEARCH INC. Test Report S/N: 080101-138LDK
1955 Moss Court, Kelowna Date(s) of Tests: August 01, 2001
B.C. Canada V1Y 9L3 FCC MPE Measurements
_________________________________________________________________________________________________________

3.0 MPE MEASUREMENT GUIDELINES

The Federal Communications Commission (FCC) has adopted the guidelines for evaluating the
environmental effects of radio frequency radiation in ET Docket 93-62 on August 6, 1996 to
protect the public from the potential hazards of RF emissions (1). The safety limits used for the
environmental evaluation measurements are based on the criteria published by the American
National Standards Institute (ANSI) for localized MPE in IEEE/ANSI C95.1-1992 Standard for
Safety Levels with Respect to Human Exposure to Radio Frequency Electromagnetic Fields, 3
kHz – 300 GHz (2). The measurement procedure described in IEEE/ANSI C95.3-1992
Recommended Practice for the Measurement of Potentially Hazardous Electromagnetic Fields –
RF and Microwave (3) is used for guidance in measuring MPE due to RF exposure from the
particular transmitting device. The new guidelines incorporate limits for MPE in terms of
electric and magnetic field strength, and power density for transmitters operating at frequencies
between 300 kHz and 100 GHz. This criteria for MPE evaluation is also described in OET
Bulletin 65 (Edition 97-01), Evaluation Compliance with FCC Guidelines for Human Exposure
to Radio Frequency Electromagnetic Fields (4).

4.0 DEFINITION

MPE is the rms and peak electric and magnetic field strength, their squares, or the plane-wave
equivalent power densities associated with these fields to which a person may be exposed
without harmful effect, and with an acceptable safety factor.

The MPE prescribed by the standard are set in terms of different parameters of effects,
depending on the frequency generated by the device. The MPE levels are set in terms of power
density, whose definition and relationship to electric and magnetic field strengths are described
by the following equation:

S(mW / cm2) = E2 = 37.7H2
3770

where:

S = Power density (mW/cm2)
Power per unit area normal to the direction of propagation usually expressed in units of
watts per square meter (W/m2), or units of milliwatts per square centimeter (mW/cm2).
For plane waves, power density, electric field strength (E), and magnetic field strength
(H) are related by the impedance of free space (377 Ω).

E = Electric field strength (V/m)

H = Magnetic field strength (A/m)

© 2001 Celltech Research Inc. CISCO SYSTEMS INC. FCC ID: LDK102040 2
2.4GHz Spread Spectrum PCMCIA Wireless LAN Card

CELLTECH RESEARCH INC. Test Report S/N: 080101-138LDK
1955 Moss Court, Kelowna Date(s) of Tests: August 01, 2001
B.C. Canada V1Y 9L3 FCC MPE Measurements
_________________________________________________________________________________________________________

7.0 MPE MEASUREMENT SUMMARY

The measurement results were obtained with the EUT tested in the conditions described in this report.

ANTENNA #1 - MaxRad BMAXC24503 3dBi Gain

2412MHz

Height Above Measured Power Correction Total E-Field MPE Limit
Ground Plane Density at 20cm Factor to Obtain Equivalent (mW/cm2)
(cm) (mW/cm2) Actual mW/cm2 Power Density
5 0.04 1.00 0.04 f/1500
10 0.03 1.00 0.03 f/1500
15 0.02 1.00 0.02 f/1500
20 0.02 1.00 0.02 f/1500
25 0.02 1.00 0.02 f/1500

2437MHz

Height Above Measured Power Correction Total E-Field MPE Limit
Ground Plane Density at 20cm Factor to Obtain Equivalent (mW/cm2)
(cm) (mW/cm2) Actual mW/cm2 Power Density
5 0.04 1.00 0.04 f/1500
10 0.03 1.00 0.03 f/1500
15 0.02 1.00 0.02 f/1500
20 0.02 1.00 0.02 f/1500
25 0.02 1.00 0.02 f/1500

2462MHz

Height Above Measured Power Correction Total E-Field MPE Limit
Ground Plane Density at 20cm Factor to Obtain Equivalent (mW/cm2)
(cm) (mW/cm2) Actual mW/cm2 Power Density
5 0.04 1.00 0.04 f/1500
10 0.03 1.00 0.03 f/1500
15 0.02 1.00 0.02 f/1500
20 0.02 1.00 0.02 f/1500
25 0.02 1.00 0.02 f/1500

© 2001 Celltech Research Inc. CISCO SYSTEMS INC. FCC ID: LDK102040 6
2.4GHz Spread Spectrum PCMCIA Wireless LAN Card

CELLTECH RESEARCH INC. Test Report S/N: 080101-138LDK
1955 Moss Court, Kelowna Date(s) of Tests: August 01, 2001
B.C. Canada V1Y 9L3 FCC MPE Measurements
_________________________________________________________________________________________________________

ANTENNA #2 - MaxRad BMAXC24505 5dBi Gain

2412MHz

Height Above Measured Power Correction Total E-Field MPE Limit
Ground Plane Density at 20cm Factor to Obtain Equivalent (mW/cm2)
(cm) (mW/cm2) Actual mW/cm2 Power Density
5 0.05 1.00 0.05 f/1500
10 0.03 1.00 0.03 f/1500
15 0.02 1.00 0.02 f/1500
20 0.02 1.00 0.02 f/1500
25 0.02 1.00 0.02 f/1500

2437MHz

Height Above Measured Power Correction Total E-Field MPE Limit
Ground Plane Density at 20cm Factor to Obtain Equivalent (mW/cm2)
(cm) (mW/cm2) Actual mW/cm2 Power Density
5 0.03 1.00 0.03 f/1500
10 0.02 1.00 0.02 f/1500
15 0.02 1.00 0.02 f/1500
20 0.02 1.00 0.02 f/1500
25 0.02 1.00 0.02 f/1500

2462MHz

Height Above Measured Power Correction Total E-Field MPE Limit
Ground Plane Density at 20cm Factor to Obtain Equivalent (mW/cm2)
(cm) (mW/cm2) Actual mW/cm2 Power Density
5 0.05 1.00 0.05 f/1500
10 0.03 1.00 0.03 f/1500
15 0.02 1.00 0.02 f/1500
20 0.02 1.00 0.02 f/1500
25 0.02 1.00 0.02 f/1500

© 2001 Celltech Research Inc. CISCO SYSTEMS INC. FCC ID: LDK102040 7
2.4GHz Spread Spectrum PCMCIA Wireless LAN Card

CELLTECH RESEARCH INC. Test Report S/N: 080101-138LDK
1955 Moss Court, Kelowna Date(s) of Tests: August 01, 2001
B.C. Canada V1Y 9L3 FCC MPE Measurements
_________________________________________________________________________________________________________

8.0 SYSTEM CALIBRATION

Prior to the assessment for MPE, the Electromagnetic Radiation Survey Meter and probe was
calibrated as per the operating instructions in the operations manual. The unit was placed into
the units electrically sealed storage case and allowed sufficient time for both units to acquire the
same temperature. The system was then calibrated by a built in software routine and zeroed in
an electromagnetic free environment

9.0 MPE SYSTEM SPECIFICATIONS

Radiation Detection Specifications
Electromagnetic Radiation Survey Meter: Narda Model 8712
Isotropic Electric Field Probe: Model 8761D
Frequency Range: 300 kHz - 3 GHz

Positioning System
Multi-Device Controller EMCO 2090 S/N: 9912-1484
Mini-Mast EMCO 2075 S/N: 0001-2277
Turntable EMCO 2080-1.2/1.5 S/N: 0002-1002

10.0 REFERENCES

(1) Federal Communications Commission, ET Docket 93-62, Guidelines for Evaluating the
Environmental Effects of Radiofrequency Radiation, Aug. 1996.

(2) ANSI/IEEE C95.1-1992, IEEE Standard for Safety Levels with Respect to Human
Exposure to Radio Frequency Electromagnetic Fields, 3kHz to 300GHz.

(3) ANSI/IEEE C95.3-1992, IEEE Recommended Practice for the Measurement of
Potentially Hazardous Electromagnetic Fields – RF and Microwave.

(4) OET Bulletin 65 (Edition 97-01), Evaluation Compliance with FCC Guidelines for
Human Exposure to Radio Frequency Electromagnetic Fields.

© 2001 Celltech Research Inc. CISCO SYSTEMS INC. FCC ID: LDK102040 8
2.4GHz Spread Spectrum PCMCIA Wireless LAN Card

CELLTECH RESEARCH INC. Test Report S/N: 080101-138LDK
1955 Moss Court, Kelowna Date(s) of Tests: August 01, 2001
B.C. Canada V1Y 9L3 FCC MPE Measurements
_________________________________________________________________________________________________________

APPENDIX A - MPE PHOTOGRAPHS

© 2001 Celltech Research Inc. CISCO SYSTEMS INC. FCC ID: LDK102040 9
2.4GHz Spread Spectrum PCMCIA Wireless LAN Card

CELLTECH RESEARCH INC. Test Report S/N: 080101-138LDK
1955 Moss Court, Kelowna Date(s) of Tests: August 01, 2001
B.C. Canada V1Y 9L3 FCC MPE Measurements
_________________________________________________________________________________________________________

APPENDIX B - ANTENNA SPECIFICATIONS

© 2001 Celltech Research Inc. CISCO SYSTEMS INC. FCC ID: LDK102040 10
2.4GHz Spread Spectrum PCMCIA Wireless LAN Card

Document Created: 2001-09-26 09:13:04
Document Modified: 2001-09-26 09:13:04

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