UFHV11Wireless Broadband Router

American Telecommunications Certification Body Inc. 6731 Whittier Ave, McLean, VA 22101 September 26, 2007 RE: SDT Information Technology FCC ID: UFHV11 I have a few comments on this Application. Depending on your responses, kindly understand there may be additional comments. 1.) The Label for this device indicates that DofC applies to this product. Please note that DofC testing for Part 15B is not permitted in China. In what country was Part 15B testing performed? 2.) I am unsure as to why the 8GHz wide spans on pages 69-74 are presented. Why are not spans from 2483.5MHz to 26GHz presented? 3.) Please refer to the RF Pout in section 5.6 of the Test Report. Please provide mid-channel readings of RF power for all data rates from lowest to highest power. 4.) Please see section 7.6 of the Test Report. There is no vertical graticule shown on these plots. Therefore I am unable to associate any of the markers presented with their corresponding frequency in determining compliance. Please correct. I am especially concerned with all radiated band edge measurements taken on Channel 11. 5.) Please observe your Test Setup photographs. ANSI C63.4 does not permit condone the use of strip outlets on the tabletop during testing. Please correct. 6.) Please add the 15.19(a)(3) and 15.21 statements to the Manual. In addition, please be sure that any appropriate RF Exposure information is also presented. William H. Graff President mailto: [email protected] The items indicated above must be submitted before processing can continue on the above referenced application. Failure to provide the requested information may result in application termination. Correspondence should be considered part of the permanent submission and may be viewed from the Internet after a Grant of Equipment Authorization is issued. Please do not respond to this correspondence using the email reply button. In order for your response to be processed expeditiously, you must submit your documents through the AmericanTCB.com website. Also, please note that partial responses increase processing time and should not be submitted. Any questions about the content of this correspondence should be directed to the sender.

54Mbps Wireless Builder(M/N:V11) EUT Photograph-External Photographs (1) EUT Photo (2) EUT Photo (3) EUT Photo (4) EUT Photo (5) EUT Photo (6) EUT Photo (7) EUT Photo (8) EUT Photo (9) EUT Photo (10) EUT Photo (11) EUT Photo (12) EUT Photo (13) EUT Photo

54Mbps Wireless Builder(M/N:V11) EUT Photograph-Internal Photographs (1) EUT Photo (2) EUT Photo (3) EUT Photo (4) EUT Photo (5) EUT Photo (6) EUT Photo

RF Exposure Evaluation declaration Product Name ： 54Mbps Wireless Builder Model No. ： V11 FCC ID ： UFHV11 Applicant ： SDT Information Technology Address ： 2F, Samil B/D 5-63, Hyochang-dong, Yongsan-ku, Seoul, Korea 140-120 Date of Receipt ： 2007/09/07 Issued Date ： 2007/09/17 Report No. ： 079S027-RF-US The test results relate only to the samples tested. The test results shown in the test report are traceable to the national/international standard through the calibration of the equipment and evaluated measurement uncertainty herein. This report must not be used to claim product endorsement by CNLA, NVLAP, NIST or any agency of the Government. The test report shall not be reproduced except in full without the written approval of QuieTek Corporation. Report No： 074S025-RF-US Page: 2 of 4 1. RF Exposure Evaluation 1.1. Limits According to FCC 1.1310: The criteria listed in the following table shall be used to evaluate the environment impact of human exposure to radio frequency (RF) radiation as specified in 1.1307(b) LIMITS FOR MAXIMUM PERMISSIBLE EXPOSURE (MPE) Frequency Range (MHz) Electric Field Strength (V/m) Magnetic Field Strength (A/m) Power Density (mW/cm2) Average Time (Minutes) (A) Limits for Occupational/ Control Exposures 300-1500 -- -- F/300 6 1500-100,000 -- -- 5 6 (B) Limits for General Population/ Uncontrolled Exposures 300-1500 -- -- F/1500 6 1500-100,000 -- -- 1 30 F= Frequency in MHz Friis Formula Friis transmission formula: Pd = (Pout*G)/(4*pi*r2) Where Pd = power density in mW/cm2 Pout = output power to antenna in mW G = gain of antenna in linear scale Pi = 3.1416 R = distance between observation point and center of the radiator in cm Pd id the limit of MPE, 1 mW/cm2 . If we know the maximum gain of the antenna and the total power input to the antenna, through the calculation, we will know the distance r where the MPE limit is reached. Report No： 074S025-RF-US Page: 3 of 4 1.2. Test Procedure Software provided by client enabled the EUT to transmit and receive data at lowest, middle and highest channel individually. The temperature and related humidity: 18°Cand 78％ RH. 1.3. Test Result of RF Exposure Evaluation Product : 54Mbps Wireless Builder Test Item : RF Exposure Evaluation Test Site : AC-3 Test Mode : Mode 1: Transmitter by 802.11b Antenna Gain: Antenna Gain: The maximum Gain measured in fully anechoic chamber is 2.0 dBi or 1.58 in linear scale. Output Power Into Antenna & RF Exposure Evaluation Distance: Channel Channel Frequency (MHz) Output Power to Antenna (mW) Power Density at R = 20 cm (mW/cm2) 01 2412.00 20.7970 0.006557 06 2437.00 23.9332 0.007546 11 2462.00 23.1739 0.007307 Note: The power density Pd (4th column) at a distance of 20 cm calculated from the Friis transmission formula is far below the limit of 1 mW/cm2. Report No： 074S025-RF-US Page: 4 of 4 Product : 54Mbps Wireless Builder Test Item : RF Exposure Evaluation Test Site : AC-3 Test Mode : Mode 2: Transmitter by 802.11g Antenna Gain: Antenna Gain: The maximum Gain measured in fully anechoic chamber is 2.0 dBi or 1.58 in linear scale. Output Power Into Antenna & RF Exposure Evaluation Distance: Channel Channel Frequency (MHz) Output Power to Antenna (mW) Power Density at R = 20 cm (mW/cm2) 01 2412.00 26.0615 0.008217 06 2437.00 24.1546 0.007616 11 2462.00 35.0752 0.011059 Note: The power density Pd (4th column) at a distance of 20 cm calculated from the Friis transmission formula is far below the limit of 1 mW/cm2.

Test Report Product Name ： 54Mbps Wireless Builder Model No. ： V11 FCC ID ： UFHV11 Applicant ： SDT Information Technology Address ： 2F, Samil B/D 5-63, Hyochang-dong, Yongsan-ku, Seoul, Korea 140-120 Date of Receipt ： 2007/09/07 Issued Date ： 2007/09/28 Report No. ： 079S027-RF-US-P05V01 This report is copy QTK NO: 074S025, only to change Applicant、Model and Trade Name. The test results relate only to the samples tested. The test results shown in the test report are traceable to the national/international standard through the calibration of the equipment and evaluated measurement uncertainty herein. This report must not be used to claim product endorsement by CNLA, NVLAP, NIST or any agency of the Government. The test report shall not be reproduced except in full without the written approval of QuieTek Corporation. Report No： 079S027-RF-US-P05V01 Page: 2 of 109 Version 1.0 Test Report Certification Issued Date : 2007/09/28 Report No. : 079S027-RF-US-P05V01 Product Name : 54Mbps Wireless Builder Applicant : SDT Information Technology Address : 2F, Samil B/D 5-63, Hyochang-dong, Yongsan-ku, Seoul, Korea 140-120 Manufacturer : Netcore Technology INC. Model No. : V11 FCC ID : UFHV11 EUT Voltage : AC 100-240V, 50/60Hz Trade Name : ZIO Applicable Standard : FCC CFR Title 47 Part 15 Subpart C: 2007 ANSI C63.4: 2003 Test Result : Complied Performed Location : SuZhou EMC laboratory No.99 Hongye Rd., Suzhou Industrial Park Loufeng Hi-Tech Development Zone., SuZhou, China TEL: +86-512-6251-5088 / FAX: +86-512-6251-5098 FCC Registration number: 800392 Documented By : ( Any Liu ) Reviewed By : ( Dream Cao ) Approved By : ( Gene Chang ) Report No： 079S027-RF-US-P05V01 Page: 3 of 109 Version 1.0 Laboratory Information We , QuieTek Corporation, are an independent EMC and safety consultancy that was established the whole facility in our laboratories. The test facility has been accredited by the following accreditation Bodies in compliance with ISO 17025, EN 45001 and Guide 25: The related certificate for our laboratories about the test site and management system can be downloaded from QuieTek Corporation’s Web Site : http://tw.quietek.com/modules/myalbum/ The address and introduction of QuieTek Corporation’s laboratories can be founded in our Web site : http://www.quietek.com/ If you have any comments, Please don’t hesitate to contact us. Our contact information is as below: HsinChu Testing Laboratory : No.75-2, 3rd Lin, Wangye Keng, Yonghxing Tsuen, Qionglin Shiang, Hsinchu County 307, Taiwan, R.O.C. TEL:+886-3-592-8858 / FAX:+886-3-592-8859 E-Mail : [email protected] LinKou Testing Laboratory : No. 5-22, Ruei-Shu Valley, Ruei-Ping Tsuen, Lin-Kou Shiang, Taipei, Taiwan, R.O.C. TEL : 886-2-8601-3788 / FAX : 886-2-8601-3789 E-Mail : [email protected] Suzhou Testing Laboratory : No.99 Hongye Rd., Suzhou Industrial Park Loufeng Hi-Tech Development Zone., SuZhou, China TEL : +86-512-6251-5088 / FAX : 86-512-6251-5098 E-Mail : [email protected] Taiwan R.O.C. : BSMI, DGT, CNLA Germany : TUV Rheinland Norway : Nemko, DNV USA : FCC, NVLAP Japan : VCCI 0914 1313 1596 Report No： 079S027-RF-US-P05V01 Page: 4 of 109 Version 1.0 TABLE OF CONTENTS Description Page 1. General Information .................................................................................................... 6 1.1. EUT Description...................................................................................................... 6 1.2. Mode of Operation .................................................................................................. 8 1.3. Tested System Details ............................................................................................ 9 1.4. Configuration of Tested System............................................................................ 10 1.5. EUT Exercise Software......................................................................................... 11 2. Technical Test ........................................................................................................... 12 2.1. Summary of Test Result........................................................................................ 12 2.2. Test Environment .................................................................................................. 13 3. Conducted Emission................................................................................................. 14 3.1. Test Equipment .....................................................................................................14 3.2. Test Setup............................................................................................................. 14 3.3. Limit..... ................................................................................................................15 3.4. Test Procedure ..................................................................................................... 15 3.5. Uncertainty ........................................................................................................... 15 3.6. Test Result ............................................................................................................ 16 3.7. Test Photograph ................................................................................................... 28 4. Radiated Emission .................................................................................................... 30 4.1. Test Equipment .....................................................................................................30 4.2. Test Setup............................................................................................................. 30 4.3. Limit.... .................................................................................................................31 4.4. Test Procedure ..................................................................................................... 32 4.5. Uncertainty .......................................…

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Test Setup Photographs Test Mode: Mode 1: Transmit by 802.11b Description: Front View of Conduction Test Test Mode: Mode 1: Transmit by 802.11b Description: Back View of Conduction Test Test Mode: Mode 2: Transmit by 802.11g Description: Front View of Conduction Test Test Mode: Mode 2: Transmit by 802.11g Description: Back View of Conduction Test Test Mode: Mode 1: Transmit by 802.11b Description: Front View of Radiated Test for Under 1GHz Test Mode: Mode 1: Transmit by 802.11b Description: Back View of Radiated Test for Under 1GHz Test Mode: Mode 1: Transmit by 802.11b Description: Front View of Radiated Test for Above 1GHz Test Mode: Mode 1: Transmit by 802.11b Description: Back View of Radiated Test for Above 1GHz Test Mode: Mode 2: Transmit by 802.11g Description: Front View of Radiated Test for Under 1GHz Test Mode: Mode 2: Transmit by 802.11g Description: Back View of Radiated Test for Under 1GHz Test Mode: Mode 2: Transmit by 802.11g Description: Front View of Radiated Test for Above 1GHz Test Mode: Mode 2: Transmit by 802.11g Description: Back View of Radiated Test for Above 1GHz