PC6EK-001BCDMA Cellular Modem

Growell Telecom Co., Ltd.

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Application Details

Equipment Class: TNB - Licensed Non-Broadcast Station Transmitter
Date of Grant: Feb 13, 2002
Application Purpose: Original Equipment
Date of Application: Dec 17, 2001
Equipment Note: CDMA Cellular Modem
Frequency Range: 824.70000000 - 848.31000000
Company: Growell Telecom Co., Ltd.
Country: South Korea

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Document Text

Text extracted from the exhibit documents filed with the FCC. Open a document above to read the original.

Cover Letter(s)

December 11, 2001 Federal Communications Commission Equipment Approval Services 7435 Oakland Mills Road Columbia, MD 21046 SUBJECT:YISO TELECOM CO., LTD. FCC ID: PC6EK-001B Part 22 Certification Gentlemen: Attached herewith, on behalf of YISO TELCOM CO., LTD. is an application for Part 22 Certification of the following CDMA Cellular Modem: FCC ID:YISO TELCOM CO., LTD. TRADE / MODEL(s):YISO / EK-001B EUT TYPE:Non-Broadcast Station Transmitter (TNB) Tx Freq. Range:824.70 – 848.31 MHz Rx Freq. Range:869.70 – 893.31 MHz Max. RF Output Power:0.253 W ERP CDMA (24.033 dBm) Attached is the applicant’s Letter of Authorization, Confidentiality Request, measurement report data and plots, RF Exposure measurement report, FCC ID label and location, test setup photographs, internal and external photographs, block diagrams (confidential), schematic diagrams & circuit description (confidential), operational description (confidential), parts list & tune-up procedure (confidential), and the user's manual. Should you have any questions or comments concerning the above, please contact the undersigned. cc:YISO TELECOM CO., LTD.

External Photos

© 2001 PCTEST Lab FCC ID: PC6EK-001B (Model: EK-001B) NVLAP Lab Code: 100431-0 CDMA Cellular Modem © 2001 PCTEST Lab FCC ID: PC6EK-001B (Model: EK-001B) NVLAP Lab Code: 100431-0 CDMA Cellular Modem © 2001 PCTEST Lab FCC ID: PC6EK-001B (Model: EK-001B) NVLAP Lab Code: 100431-0 CDMA Cellular Modem © 2001 PCTEST Lab FCC ID: PC6EK-001B (Model: EK-001B) NVLAP Lab Code: 100431-0 CDMA Cellular Modem © 2001 PCTEST Lab FCC ID: PC6EK-001B (Model: EK-001B) NVLAP Lab Code: 100431-0 CDMA Cellular Modem © 2001 PCTEST Lab FCC ID: PC6EK-001B (Model: EK-001B) NVLAP Lab Code: 100431-0 CDMA Cellular Modem

ID Label/Location Info

© 2001PCTEST Lab FCC ID SAMPLE LABEL & LOCATION LABELLING REQUIREMENTS PER §§ 2.925 The 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. (SEE NEXT PAGE)

Internal Photos

RF Exposure Info

RF Exposure Measurement 1. Introduction 2.4 GHz frequency band is regarded specially as a dangerous band for its heating harmfulness to the human body. That’s why microwave oven is operating in this frequency band. The manufacturer whose product is working in this frequency band is obligatory to prove the harmfulness of his product. In this document, we try to prove the safety of radiation harmfulness to the human body. The limit for Maximum Permissible Exposure (MPE) specified in FCC 1.1210 is followed. The Gain of the antenna used in this product is measured by power meter. Through the Friis transmission formula and the maximum gain of the antenna, we can calculate the distance, away from the product, where the limit of MPE is reached. 2. RF Exposure Limit According to FCC 1.1310: The criteria listed in the following table shall be used to evaluate the environmental 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/cm 2 ) 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 Exposure 300-1500 ... ... F/1500 6 1500-100,000 ... ... 1.0 30 F = Frequency in MHz 3. Friis Formula Friis transmission formula : Pd = (Pout*G) / (4*pi*r 2 ) Where Pd = power density in mW/cm 2 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 is the limit of MPE, 1 mW/cm 2 . 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. Ref.: David K. Cheng, Field and Wave Electromagnetics, Second Edition, Page 640, Eq. (11.133). 4 EUT Operating condition A Software provided by client enabled the EUT to transmit and receive data at lowest, middle and highest channel individually. 5 Climate Condition The temperature and related humidity: 22 C and 78% RH 6 Test Results 6.1 Output Power Into Antenna & RF Exposure Distance: CHANNEL Channel Frequency (MHz) Output Power To Antenna (mW) Minimum Allowable Distance From Skin(cm) 1013 824.70 235 5.83 363 835.89 253 6.05 0777 848.31 252 6.03 The distance r (4 th column) calculated from the Friis transmission formula is far shorter than 20cm separation requirement. So, RF exposure limit warning or SAR test are not required.

Test Report

© 2001 PCTEST Engineering Lab., Inc. PCTEST Engineering Laboratory, Inc. 6660-B Dobbin Road 6660-B Dobbin Road •• Columbia, MD 21045 Columbia, MD 21045 •• U.S.A. U.S.A. TEL (410) 290-6652 TEL (410) 290-6652 •• FAX (410) 290-6654 FAX (410) 290-6654 http://www.pctestlab.comhttp://www.pctestlab.com CERTIFICATE OF COMPLIANCE FCC Part 22 Certification YISO TELECOM CO., LTD.Dates of Tests: December 11, 2001 261 Yangjae-dog, Seocho-ku,Test Report S/N: 22.211211687.PC6 Seoul, KOREA 137-894Test Site: PCTEST Lab, Columbia MD Attn: Mr. Sung Hyun Lee, Wireless Comm. Lab Manager/R&D FCC ID PC6EK-001B APPLICANT YISO TELECOM CO., LTD. Classification:Non-Broadcast Station Transmitter (TNB) FCC Rule Part(s):§22.901(d), §2 EUT Type:CDMA Cellular Modem Trade Name/Model(s):YISO Telecom/ EK-001B Tx Frequency Range: 824.70 ~ 848.31 MHz (CDMA) Rx Frequency Range:869.70 ~ 893.31 MHz (CDMA) Max. RF Output Power:0.253W ERP CDMA (24.033 dBm) Frequency Tolerance:0.00025% (2.5 ppm) Emission Designator:1M25F9W This equipment has been shown to be capable of compliance with the applicable technical standards as indicated in the measurement report and was tested in accordance with the measurement procedures specified in §2.947. I attest to the accuracy of data. All measurements reported herein were performed by me or were made under my supervision and are correct to the best of my knowledge and belief. I assume full responsibility for the completeness of these measurements and vouch for the qualifications of all persons taking them. PCTEST certifies that no party to this application has been denied the FCC benefits pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. 211211687.PC6 Certification © 2001 PCTEST Engineering Laboratory, Inc.FCC Part 22 TABLE OF CONTENTS ATTACHMENT A: COVER LETTER(S) ATTACHMENT B: ATTESTATION STATEMENT(S) ATTACHMENT C: TEST REPORT 1.1 SCOPE 1 2.1 INTRODUCTION 2 3.1 INSERTS PER §2.1033(d) 3 4.1 DESCRIPTION OF TESTS 4-6 5.1 EFFECTIVE RADIATED POWER OUTPUT 7-8 6.1 RADIATED MEASUREMENTS 9-14 7.1 FREQUENCY STABILITY 15-16 8.1 PLOTS OF EMISSIONS 17 9.1 LIST OF TEST EQUIPMENT 18 10.1 SAMPLE CALCULATIONS 19 11.1 CONCLUSION 20 ATTACHMENT D: TEST PLOTS ATTACHMENT E: FCC ID LABEL / LOCATION ATTACHMENT F: TEST SETUP PHOTOGRAPHS ATTACHMENT G: EXTERNAL PHOTOGRAPHS ATTACHMENT H: INTERNAL PHOTOGRAPHS ATTACHMENT I: BLOCK DIAGRAM(S) ATTACHMENT J: SCHEMATIC DIAGRAM(S) ATTACHMENT K: PARTS LIST/TUNE UP PROCEDURE ATTACHMENT L:OPERATIONAL DESCRIPTION ATTACHMENT M:USER’S MANUAL ATTACHMENT N:MPE DATA Test Report S/N: 22.211211687.PC6FCC Part 22 Test Dates: December 11, 2001Certification © 2001 PCTEST LabFCC ID: PC6EK-001B (Model: EK-001B)1 CDMA Cellular Modem MEASUREMENT REPORT 1.1 Scope Measurement and determination of electromagnetic emissions (EME) of radio frequency devices including intentional and/or unintentional radiators for compliance with the technical rules and regulations of the Federal Communications Commission. §2.1033(a) General Information Applicant Name:YISO TELECOM CO., LTD. Address:261 Yangjae-dog, Seocho-ku Seoul, KOREA 137-894 Attention:Mr. Sung Hyun Lee, Wireless Comm. Lab. Manager / R&D • FCC ID:PC6EK-001B • Trade Name/Model(s):YISO Telecom/ EK-001B • Quantity:Quantity production is planned • Emission Designator:1M25F9W • Tx Frequency Range: 824.70 ~ 848.31 MHz (CDMA) • Rx Frequency Range:869.70 ~ 893.31 MHz (CDMA) • Equipment Class:Non-Broadcast Station Transmitter (TNB) • Equipment Type:CDMA Cellular Modem • Modulation:CDMA • Frequency Tolerance:± 0.00025% (2.5 ppm) • Max. RF Output Power:0.253W ERP CDMA (24.033 dBm) • FCC Rule Part(s):§22.901(d), §2 • Power Source:NSM-300 5V • Dates of Tests:December 11, 2001 • Place of Tests:PCTEST Lab, Columbia, MD U.S.A. • Test Report S/N:22.211211687.PC6 Test Report S/N: 22.211211687.PC6FCC Part 22 Test Dates: December 11, 2001Certification © 2001 PCTEST LabFCC ID: PC6EK-001B (Model: EK-001B)2 CDMA Cellular Modem 2.1 INTRODUCTION These measurement tests were conducted at PCTEST Engineering Laboratory, Inc. facility in New Concept Business Park, Guilford Industrial Park, Columbia, Maryland. The site address is 6660-B Dobbin Road, Columbia, MD 21045. The test site is one of the highest points in the Columbia area with an elevation of 390 feet above mean sea level. The site coordinates are 39° 11'15" N latitude and 76° 49'38" W longitude. The facility is 1.5 miles North of the FCC laboratory, and the ambient signal and ambient signal strength are approximately equal to those of the FCC laboratory. There are no FM or TV transmitters within 15 miles of the site. The detailed description of the measurement facility was found to be in compliance with the requirements of § 2.948 according to ANSI C63.4 on October 19, 1992. Measurement Procedure The radiated and spurious measurements were made outdoors at a 3-meter test range (see Figure2). The equipment under testing was placed on a wooden turntable, 3-meters from the receive antenna. The receive antenna height and turntable rotations was adjusted for the highest reading on the receive spectrum analyzer. A half- wave dipole was substituted in place of the EUT. This dipole antenna was driven by a signal generator and the level of the signal generator was adjusted to obtain the same receive spectrum analyzer reading. This level was recorded. For readings above 1 GHZ, the above procedure would be repeated using horn antennas and the difference between the gain of the horn and an isotropic antenna are taken into consideration. Figure 1. Map of the Greater Baltimore and Metropolitan Washington, D.C. area. Test Report S/N: 22.211211687.PC6FCC Part 22 Test Dates: December 11, 2001Certification © 2001 PCTEST LabFCC ID: PC6EK-001B (Model: EK-001B)3 CDMA Cellular Modem 3.1 INSERTS Function of Active Devices (Confidential) The Function of active devices is shown in Attachment L. Block/Circuit Diagrams (Confidential) The block diagram(s) are shown in Attachment I. The schematic diagrams are shown in …

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Test Setup Photos