NKRAP300G802.11g WLAN Access Point

1 802.11g WLAN Access Point User’s Guide Version 1.0, May 2003 2 Copyright Statement No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, whether electronic, mechanical, photocopying, recording or otherwise without the prior writing of the publisher. Windows ™ 95/98 and Windows ™ 2000 are trademarks of Microsoft ® Corp. Pentium is trademark of Intel. All copyright reserved. Table of Contents Regulatory Information .......................................4 Introducing the 802.11G ACCESS POINT .......5 Overview of the Device .........................5 802.11G ACCESS POINT Features ........6 Network Configuration Examples .........7 As An Access Point..........................7 As A stand-alone repeater ...............8 As A point to multi-points Bridge ....8 Setting Up the device............................9 Static IP ...........................................9 Automatic IP ....................................9 Installing the 802.11G ACCESS POINT .....10 What’s in the Box?...............................10 Connecting the Cables ........................11 High Level Configuration Steps Required for the 802.11G ACCESS POINT......................11 Setting up a Windows PC or wireless client as DHCP clients........................................12 A Look at the Front Panel....................14 Connecting More Devices Through A Hub To The 802.11G ACCESS POINT......................15 Basic Configuration of the 802.11G ACCESS POINT ...................................................................16 Logging On...........................................17 Setup Wizard........................................17 Time settings .................................17 Device IP Settings .........................18 Wireless Settings ...........................20 Advanced Settings ....................................22 Password Settings...............................22 System Management ...........................22 SNMP Settings .....................................24 DHCP Server Settings..........................25 MAC Filtering Settings.........................26 Wireless Settings.................................27 Operational Mode ................................28 Radius Settings ...................................29 Managing the 802.11G ACCESS POINT.....32 How to View the device Status .......... 32 How to View the System Log.............. 33 DHCP Client Table............................... 33 Wireless Client Table .......................... 33 Bridge Table........................................ 34 Upgrading Firmware ........................... 34 How to Save or Restore Configuration Changes ............................................................. 35 How to Reboot your 802.11G ACCESS POINT ............................................................. 35 What if you Forgot the Password?...... 36 Command Line Interface .......................... 37 General guidelines .............................. 37 Express Mode vs. Advanced Mode of operation ............................................................. 38 Conventions ........................................ 38 Command List ..................................... 39 System Commands ............................. 39 Port...................................................... 46 Filtering ............................................... 48 DHCP Server........................................ 49 SNMP ................................................... 51 Diagnostics ......................................... 53 Security ............................................... 56 Wireless............................................... 58 Product Specification ............................... 61 Federal Communication Commission Interference Statement This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one of the following measures: - Reorient or relocate the receiving antenna. - Increase the separation between the equipment and receiver. - Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. - Consult the dealer or an experienced radio/TV technician for help. FCC Caution: To assure continued compliance, (example - use only shielded interface cables when connecting to computer or peripheral devices) any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate this equipment. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) This device must accept any interference received, including interference that may cause undesired operation. IMPORTANT NOTE: This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator & your body. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. The user cannot use channel 12 & 13, or it will be a violation of the sensitive restricted bands of 15.205. 5 Introducing the 802.11G ACCESS POINT Overview of the Device The 802.11G ACCESS POINT is an access-point based on IEE…

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Date: Sep. 08, 2003 American Telecommunications Certification Body, Inc. 6731 Whittier Avenue Suite C110 McLean, VA 22101 Subject: supplement for FCC ID: NKRAP300G Dear Bill, Here are our answers for you comments. Ans. 1. See the updated report. Ans.2. See the updated report. Ans.3. See the updated manual I have uploaded the updated report and manual onto your website Any insufficiency, please feel free to contact me through E-MAIL. Thanks for your help. Daphne Liu 2003/09/08

Wistron Neweb Corporation No. 10-1, Li-hsin Road 1, Science-based Industrial Park,Hsinchu 300, Taiwan, R. O. C. 886-3-666-7799 886-3-666-1654 Rev 2 C:\tmp\03LR011 Ra8\FCC\AP FORM.doc 02/08/02 Letter Of Agency Date: Aug. 21, 2003 American Telecommunications Certification Body, Inc. 6731 Whittier Avenue Suite C110 McLean, VA 22101 To Whom It May Concern: Please be advised that Wistron NeWeb Corporation authorizes International Standards Laboratory (ISL) to act on our behalf, until otherwise notified, for applications submitted to American Telecommunications Certification Body, Inc. (ATCB). We certify that we are not subject to denial of federal benefits that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse ACT of 1988, U.S.C. 862. Further, no party as defined in 47 CFR 1.2002(b), for this application is subject to denial of federal benefits that includes FCC benefits. Thank you for your attention to this matter. ________________ Eric Liu / Sr. Manager Engineer Wistron Corporation Wistron Neweb Corporation No. 10-1, Li-hsin Road 1, Science-based Industrial Park,Hsinchu 300, Taiwan, R. O. C. 886-3-666-7799 886-3-666-1654 Rev 2 C:\tmp\03LR011 Ra8\FCC\AP FORM.doc 02/08/02 FCC Labeling Requirements and Information Date: Aug. 21, 2003 American Telecommunications Certification Body, Inc. 6731 Whittier Avenue Suite C110 McLean, VA 22101 RE: FCC Labeling Requirements FCC ID: NKRAP300G The following label information is required by the FCC Rules and Regulations for certified devices. Please find marketing information required by the FCC Rules and Regulations as following: Label Requirements An intentional radiator device subject to certification by the FCC shall carry a warning label which includes the following statement: (Due to space limitation, this statement will be shown on Users’ Manual Page 4.) This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. The sample label shown shall be permanently affixed at a conspicuous location on the device and be readily visible to the user at the time of purchase. FCC ID: NKRAP300G Thank you for your attention to these matters. Sincerely, ________________ Eric Liu / Sr. Manager Engineer Wistron NeWeb Corporation Wistron Neweb Corporation No. 10-1, Li-hsin Road 1, Science-based Industrial Park,Hsinchu 300, Taiwan, R. O. C. 886-3-666-7799 886-3-666-1654 Rev 2 C:\tmp\03LR011 Ra8\FCC\AP FORM.doc 02/08/02 Request for Confidentiality Date: Aug. 21, 2003 American Telecommunications Certification Body, Inc. 6731 Whittier Avenue Suite C110 McLean, VA 22101 RE: Certification Application FCC ID: NKRAP300G Please be advised that the following information is to be held confidential on behalf of Wistron NeWeb Corporation : q Block Diagram q Schematics q Operational Description The application contains technical information which Wistron NeWeb Corporation deems to be trade secrets and proprietary. If made public, the information might be used to the disadvantage of the applicant in the market place. Thank you for your attention to this matter. Sincerely, ________________ Eric Liu / Sr. Manager Engineer Wistron NeWeb Corporation

FCC Label Label Location Label Location

Report Number: 03LR011FC Test Date: 2003/08/18 NVLAP Lab. Code: 200234-0; VCCI: R-1435, C-1440; NEMKO Aut. No: ELA 113; BSMI Lab. Code: SL2-IN-E-0013 Test Report FOR FCC Part 15 Subpart C of 802.11g WLAN Access Point Model: AP-300G (Brand: Wistron NeWeb) Applied by: Wistron NeWeb Corporation No. 10-1, Li-hsin Road I, Science-based Industrial Park Hsinchu 300, Taiwan, R. O. C. Test Performed by: (NVLAP Lab. Code: 200234-0) International Standards Laboratory No. 120, Lane 180, San Ho Tsuen, Hsin Ho Rd. Lung-Tan Hsiang, Tao Yuan County 325 Taiwan, R.O.C. Tel:(03)407-1718 Fax:(03)407-1738 FCC ID:NKRAP300G International Standards Laboratory Report Number: 03LR011FC NVLAP Lab. Code: 200234-0; VCCI: R-1435, C-1440; NEMKO Aut. No: ELA 113; BSMI Lab. Code: SL2-IN-E-0013 -i- Contents of Report 1. . General...............................................................................................1 1.1 Certification of Accuracy of Test Data.............................................................................1 2. Test Results Summary............................................................................2 3. Description of Equipment Under Test (EUT)...........................................3 3.1 Test Standards and Procedure........................................................................................4 3.2 General Test Conditions..................................................................................................4 4. TEST RESULTS (802.11b)..........................................................5 4.1 Powerline Conducted Emissions [Section 15.207]...........................................................5 4.1.1 EUT Configuration.........................................................................................................................................5 4.1.2 Test Procedure................................................................................................................................................5 4.1.3 EMI Receiver/Spectrum Analyzer Configuration (for the frequencies tested).....................................5 4.1.4 Test Data:.........................................................................................................................................................6 4.2 Bandwidth for DSSS [Section 15.247 (a)(2)]..................................................................8 4.2.1 Test Procedure................................................................................................................................................8 4.2.2 Test Setup........................................................................................................................................................8 4.2.3 Test Data..........................................................................................................................................................8 4.3 DSSS Maximum Peak Output Power [Section 15.247 (b)(1)].......................................12 4.3.1 Test Procedure..............................................................................................................................................12 4.3.2 Test Setup......................................................................................................................................................12 4.3.3 Test Data:.......................................................................................................................................................12 4.4 Radiated Emission Measurement [Section [15.247(c)(4)]..............................................13 4.4.1 EUT Configuration.......................................................................................................................................13 4.4.2 Test Procedure..............................................................................................................................................13 4.4.3 EMI Receiver/Spectrum Analyzer Configuration (for the frequencies tested)...................................13 4.4.4 Test Data (30MHz – 1GHz) :........................................................................................................................14 4.4.5 Test Data ( 1GHz – 25 GHz, Transmitting from Main antenna) .............................................................15 4.5 Band Edge Measurement..............................................................................................18 4.5.1 Test Procedure (Conducted).......................................................................................................................18 4.5.2 Test Setup (Conducted)..............................................................................................................................18 4.5.3 Test Data:.......................................................................................................................................................18 4.5.4 Band Edge measurement Test Procedure (Radiated)..............................................................................21 4.5.5 Test Setup (Radiated)..................................................................................................................................21 4.5.6 Test Data:.......................................................................................................................................................22 4.6 RF Exposure Measurement [Section 15.247(b)(4) & 1.1307(b)]...................................27 4.6.1 Applied Standards........................................................................................................................................27 4.6.2 Limits for Maximum Permissible Exposure (MPE)....................................................................................27 4.6.3 Test Procedure..............................................................................................................................................27 4.6.4 Test Setup.................…

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-28- FCC ID:NKRAP300G International Standards Laboratory Report Number: 03LR011FC NVLAP Lab. Code: 200234-0; VCCI: R-1435, C-1440; NEMKO Aut. No: ELA 113; BSMI Lab. Code: SL2-IN-E-0013 4.6.5 Test Data: Table Maximum Peak Output Power Chennel Frequency (MHz) Peak Power Output (mW) Peak Power Output (dBm) 1 2412 26.44 14.223 6 2437 29.77 14.739 11 2462 28.51 14.551 4.6.6 RF Exposure Calculations: From FCC 1.1310, the maximum permissible RF exposure for an uncontrolled environment is 1 mW/cm2. The Minimum Allowable Distance ,R, of EUT is calculated as follows: Friis Transmission Formula: Pd = (Pout*G)/(4* ð*R 2 ) R= [(Pout*G)/(4* ð*Pd)] 1/2 Where Pd = power density in mW/cm 2 = 1mW/ cm 2 Maxmium Peak Gain at 2.4GHz: (refer to antenna spec. ) G = antenna numeric gain = Log -1 (dB gain/10) Pout = output power to antenna in mW (Refer to table 4.3.1) ð = 3.1416 Since the host equipment is a notebook computer, the normal use distance is more than 20cm, the suitable standard for RF exposure is §1.1307(b)(1) MPE test. According to the result of 4.3.1, the calculated minimum allowance distance of EUT is listed below: Table 5.2.1 MPE Minimum Allowance Distance of EUT Channel Frequency (MHz) Maximum output power (mW) Minimum Allowance Distance (cm) 1 2412 26.44 1.877 7 2442 29.77 1.991 11 2462 28.51 1.949 Note: Antenna gain=2.24dBi The minimum allowable distance is very close to the enclosure of the antenna and also very far away from the human being under normal use condition. So, the RF exposure warning or SAR Measurement is not needed. -29- FCC ID:NKRAP300G International Standards Laboratory Report Number: 03LR011FC NVLAP Lab. Code: 200234-0; VCCI: R-1435, C-1440; NEMKO Aut. No: ELA 113; BSMI Lab. Code: SL2-IN-E-0013 4.7 DSSS Peak Power Spectral Density [Section 15.247(d) ] 4.7.1 Test Procedure 1. The Transmitter output of EUT was connected to the spectrum analyzer. Equipment mode: Spectrum analyzer Detector function: Peak mode SPAN:1.5MHz RBW: 3KHz VBW: 30KHz Center frequency: fundamental frequency tested. Sweep time= 500 sec. Cable loss=1.13dB 2. Using Peak Search to read the peak power after Maximum Hold function is completed. 4.7.2 Test Setup Attentuator 4.7.3 Test Data: Table Maximum Peak Output Power Density Chennel Peak Power Output (dBm/3KHz) Limit (dBm/3KHz) Pass/Fail 1 -7.22 8 Pass 6 -3.88 8 Pass 11 -6.13 8 Pass Note: Two RF output( MAIN & AUX) have been test,the worse data shown above. Cable Lose=1.13dB EUT Spectrum Analyzer -30- FCC ID:NKRAP300G International Standards Laboratory Report Number: 03LR011FC NVLAP Lab. Code: 200234-0; VCCI: R-1435, C-1440; NEMKO Aut. No: ELA 113; BSMI Lab. Code: SL2-IN-E-0013 -31- FCC ID:NKRAP300G International Standards Laboratory Report Number: 03LR011FC NVLAP Lab. Code: 200234-0; VCCI: R-1435, C-1440; NEMKO Aut. No: ELA 113; BSMI Lab. Code: SL2-IN-E-0013 -32- FCC ID:NKRAP300G International Standards Laboratory Report Number: 03LR011FC NVLAP Lab. Code: 200234-0; VCCI: R-1435, C-1440; NEMKO Aut. No: ELA 113; BSMI Lab. Code: SL2-IN-E-0013 -33- FCC ID:NKRAP300G International Standards Laboratory Report Number: 03LR011FC NVLAP Lab. Code: 200234-0; VCCI: R-1435, C-1440; NEMKO Aut. No: ELA 113; BSMI Lab. Code: SL2-IN-E-0013 5. TEST RESULTS (802.11g) 5.1 Powerline Conducted Emissions [Section 15.207] 5.1.1 EUT Configuration The conducted emission test setups are in accordance with Figs 9, 10(a) and 10(b) of ANSI C63.4-2001, CFR 47 Part 15 Subpart B; or EN55022:1994/ A1:1995/A2:1997; CISPR 22:1993/A1:1995/A2:1996. The EUT was set up on the non-conductive table that is 1.0 by 1.5 meter, 80cm above ground. The wall of the shielded room was located 40cm to the rear of the EUT. Power to the EUT was provided through the LISN. The impedance vs. frequency characteristic of the LISN is complied with the limit shown on the figure 1 of ANSI C63.4-2001. Both lines (neutral and hot) were connected to the LISN in series at testing. A coaxial-type connector which provides one 50 ohms terminating impedance was provided for connecting the test instrument. The excess length of the power cord was folded back and forth at the center of the lead so as to form a bundle not exceeding 40cm in length. Any changes made to the configuration, or modifications made to the EUT, during testing are noted in the following test record. If the EUT is a Personal Computer or a peripheral of personal computer, and the personal computer has an auxiliary AC outlet which can be used for providing power to an external monitor, then all measurements will be made with the monitor power from first the computer-mounted AC outlet and then a floor-mounted AC outlet. 5.1.2 Test Procedure The system was set up as described above, with the EMI diagnostic software running. The main power line conducted EMI tests were run on the hot and neutral conductors of the power cord and the results were recorded. The effect of varying the position of the interface cables has been investigated to find the configuration that produces maximum emission. At the frequencies where the peak values of the emissions were higher than 6dß below the applicable limits, the emissions were also measured with the quasi-peak detectors. At the frequencies where the quasi-peak values of the emissions were higher than 6dß below the applicable average limits, the emissions were also measured with the average detectors. The highest emissions were analyzed in details by operating the spectrum analyzer in fixed tuned mode to determine the nature of the emissions and to provide information which could be useful in reducing their amplitude. 5.1.3 EMI Receiver/Spectrum Analyzer Configuration (for the frequencies tested) Frequency Range: 150 KHz--30MHz Detector Function: Quasi-Peak/Average Bandwidth (RBW): 9KHz -34- FCC ID:NKRAP300G International Standards Laboratory Report Number: 03LR011FC NVLAP Lab. Code: 200234-0; VCCI: R-1435, C-1440; NEMKO Aut. No: ELA 113; BSMI Lab. Code: SL2-IN-E-0013 5.1.4 Test Data: Power Line Conducted Emissions (Hot) Chann…

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-47- FCC ID:NKRAP300G International Standards Laboratory Report Number: 03LR011FC NVLAP Lab. Code: 200234-0; VCCI: R-1435, C-1440; NEMKO Aut. No: ELA 113; BSMI Lab. Code: SL2-IN-E-0013 Band Edge Conducted measurement -48- FCC ID:NKRAP300G International Standards Laboratory Report Number: 03LR011FC NVLAP Lab. Code: 200234-0; VCCI: R-1435, C-1440; NEMKO Aut. No: ELA 113; BSMI Lab. Code: SL2-IN-E-0013 Band Edge Conducted Measurement -49- FCC ID:NKRAP300G International Standards Laboratory Report Number: 03LR011FC NVLAP Lab. Code: 200234-0; VCCI: R-1435, C-1440; NEMKO Aut. No: ELA 113; BSMI Lab. Code: SL2-IN-E-0013 5.5.4 Test Procedure (Radiated) 1. Antenna and Turntable test procedure same as Radiated Emission Measurement. Equipment mode: Spectrum analyzer Detector function: Peak mode SPAN: 100MHz RBW: 100KHz VBW: 100KHz Center frequency: 2.395GHz, 2.48 GHz. 2. Using Peak Search to read the peak power of Carrier frequencies after Maximum Hold function is completed. 3. Find the next peak frequency outside the operation frequency band. 4. For peak frequency emission level measurement in Restricted Band , Change RBW: 1MHz , VBW: 10Hz, Span: 100MHz. 5. Get the spectrum reading after Maximum Hold function is completed. 5.5.5 Test Setup (Radiated) Same as Radiated Emission Measurement -50- FCC ID:NKRAP300G International Standards Laboratory Report Number: 03LR011FC NVLAP Lab. Code: 200234-0; VCCI: R-1435, C-1440; NEMKO Aut. No: ELA 113; BSMI Lab. Code: SL2-IN-E-0013 5.5.6 Test Data: Table Band Edge measurement (Radiated) Channel Frequency (MHz) Spectrum Reading (dBuV) Correction Factor (dB/m) Emission Level (dBuV/m) Limit: > 20dB (dBC) Limit (dBuV/m) Equip. Setup VBW Pass or Fail 1(peak mode) 2416.7 80.04 31.67 111.71 --- ----- 100KHz ----- Outside band 2399.3 56.68 31.67 88.35 23.36 ----- 100KHz Pass 1(average mode) 2406.6 70.27 31.67 101.94 --- ----- 10Hz ----- Restricted band 2390.0 19.0 31.67 50.67 ----- 54 10Hz Pass 11(peak mode) 2456.7 82.93 31.64 114.57 ---- ----- 100KHz ----- Outside band 2474.0 61.08 31.64 92.72 21.85 ----- 100KHz Pass 11(average mode) 2457.0 71.8 31.64 103.44 ---- ----- 10Hz ----- Restricted band 2483.5 19.30 31.64 50.94 ----- 54 10Hz Pass Note: The Spectrum plot of emission level measurement in Restricted band is attached. Emission Level = Spectrum Reading + Correction Factor Correction Factor = Antenna Factor + cable loss – amplifier gain Both Horizontal and Vertical polarization have been tested and the worst data is listed above. -51- FCC ID:NKRAP300G International Standards Laboratory Report Number: 03LR011FC NVLAP Lab. Code: 200234-0; VCCI: R-1435, C-1440; NEMKO Aut. No: ELA 113; BSMI Lab. Code: SL2-IN-E-0013 Band Edge measurement for radiated emission in Restricted Band(Radiated) Peak Mode (Channel 1) -52- FCC ID:NKRAP300G International Standards Laboratory Report Number: 03LR011FC NVLAP Lab. Code: 200234-0; VCCI: R-1435, C-1440; NEMKO Aut. No: ELA 113; BSMI Lab. Code: SL2-IN-E-0013 Band Edge measurement for radiated emission in Restricted Band(Radiated) Average Mode (Channel 1) -53- FCC ID:NKRAP300G International Standards Laboratory Report Number: 03LR011FC NVLAP Lab. Code: 200234-0; VCCI: R-1435, C-1440; NEMKO Aut. No: ELA 113; BSMI Lab. Code: SL2-IN-E-0013 Band Edge measurement for radiated emission in Restricted Band(Radiated) Peak Mode (Channel 11) -54- FCC ID:NKRAP300G International Standards Laboratory Report Number: 03LR011FC NVLAP Lab. Code: 200234-0; VCCI: R-1435, C-1440; NEMKO Aut. No: ELA 113; BSMI Lab. Code: SL2-IN-E-0013 Band Edge measurement for radiated emission in Restricted Band(Radiated) Average Mode (Channel 11) -55- FCC ID:NKRAP300G International Standards Laboratory Report Number: 03LR011FC NVLAP Lab. Code: 200234-0; VCCI: R-1435, C-1440; NEMKO Aut. No: ELA 113; BSMI Lab. Code: SL2-IN-E-0013 5.6 RF Exposure Measurement [Section 15.247(b)(4) & 1.1307(b)] 5.6.1 Applied Standards FCC 47 CFR Part 15 Section 15.247(b)(5) & Part 1 Section 1.1307(b)(1) 5.6.2 Limits for Maximum Permissible Exposure (MPE) A. Limits for Occupational/Controlled Exposure Frequency Range (MHz) Electric Field Strength(V/m) Magnetic Field Strength (A/m) Power Density (S) (mW/cm2) Averagine Time (Minutes) 300-1500 ---- ----- f/300 6 1500-100,000 ---- ----- 5 6 B. Limits for General Population/Uncontrolled Exposure Frequency Range (MHz) Electric Field Strength(V/m) Magnetic Field Strength (A/m) Power Density (S) (mW/cm2) Averagine Time (Minutes) 300-1500 ---- ----- f/1500 30 1500-100,000 ---- ----- 1.0 30 5.6.3 Test Procedure The Transmitter output of EUT was connected to the peak power analyzer through an attenuator. 5.6.4 Test Setup Peak Power Sensor EUT Peak Power Analyzer -56- FCC ID:NKRAP300G International Standards Laboratory Report Number: 03LR011FC NVLAP Lab. Code: 200234-0; VCCI: R-1435, C-1440; NEMKO Aut. No: ELA 113; BSMI Lab. Code: SL2-IN-E-0013 5.6.5 Test Data: Table Maximum Peak Output Power Chennel Frequency (MHz) Peak Power Output (mW) Peak Power Output (dBm) 1 2412 139.89 21.458 6 2437 156.96 21.958 11 2462 164.47 22.161 5.6.6 RF Exposure Calculations: From FCC 1.1310, the maximum permissible RF exposure for an uncontrolled environment is 1 mW/cm2. The Minimum Allowable Distance ,R, of EUT is calculated as follows: Friis Transmission Formula: Pd = (Pout*G)/(4* ð*R 2 ) R= [(Pout*G)/(4* ð*Pd)] 1/2 Where Pd = power density in mW/cm 2 = 1mW/ cm 2 Maxmium Peak Gain at 2.4GHz: (refer to antenna spec. ) G = antenna numeric gain = Log -1 (dB gain/10) Pout = output power to antenna in mW (Refer to table 4.3.1) ð = 3.1416 Since the host equipment is a notebook computer, the normal use distance is more than 20cm, the suitable standard for RF exposure is §1.1307(b)(1) MPE test. According to the result of 4.3.1, the calculated minimum allowance distance of EUT is listed below: Table 5.2.1 MPE Minimum Allowance Distance of EUT Channel Frequency (MHz) Maximum output power (mW) Minimum Allowance Distance (cm) 1 2412 139.89 4.318 7 2442 156.96 4.574 11 2462 164.47 4.682 Not…

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