CR4-TZC-BH01Blue-fin

FCC STATEMENTThis 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, and2. This device must accept any interference received , including interference that may cause undesiredoperation.[Note] The manufacturer is not responsible for any interference, for example R ADIO or TV interference, caused by unauthorized modifications to this equipment. Such modifications could void the user’sauthority to operate the equipment. EUThis product is CE marked according to the provision of the R&TTE Directive (99/5/EC).Here by CoreOptix Inc. declares that this product is in compliance with the essential requirements and other relevant provisions of Directive 1999/5/EC.

March 19, 2012 Fede ral C ommunications Commission Equipment Aut horization Divi si on, Application Processing Branc h 7435 Oakl and Mills Roa d Col umbi a, MD21046 RE: LETTER OF AGENT AUTHORIZATION We, the undersigne d, hereby aut horize SK TECH Co., Ltd.(Mr. Jongsoo, Yoon) to act on our be ha lf in all matters relating t o application for e quipment a ut horization. We also hereby certif y that no party to the application aut horized hereunder is subject to the deni al of be nefits, inc luding FCC be nefits, pursuant to Section 5301 of the Ant i-Drug Abuse Act of 1988, 21 U.S .C .853(a). APPLICANT/AGENT CERTIFICATION AND AGREEMENT: All of the st atement s herein and the exhi bits attache d he reto, are true and correct to the be st of my knowledge and belief. In accepting a Grant of Equi pment Aut horization issued by the TCB, under the aut hority of the FCC, as a result of the represent ations made in thi s application, the applicant is responsibl e for (1) labeling the equipment with the exact FCC ID sp ecified in thi s appli cation, (2) compliance st atement labe ling pursuant to the applicable rul es, and (3) complianc e of the equipment with the applicable technical rul es. If the applicant is not the actua l manufactur er of the equipment , appropriate arrange ment s ha ve been made with the manufactur er to ensure tha t pr oduction units of t hi s equipment w ill continue t o compl y w ith the FCC’s t echnical r equirement s. Aut horizing an agent to si gn thi s application, is done solely at the applicant’s di sc retion; however, the a pplicant remains responsibl e f or a ll statement s i n thi s application. Sincerely, CHUNG Yunjung / CEO

March 19, 2012 Fede ral C ommunications Commission Equipment Aut horization Divi si on, Application Processing Branc h 7435 Oakl and Mills Roa d Col umbi a, MD21046 TO WHOM IT MAY C ONCERN ATTESTATION: I attest tha t the pr oduct, model TZC-BH01, ha s a USB port for cha rging the ba tte ry; and tha t the USB port can not be us ed by the End-User for da ta excha nge as a computer pe ripheral de vi ce. There is no int ention to use t he U SB port i n fut ure for data excha nge FCC ID N umber ProductProduct description (Model) CR4-TZC-BH01 Blu e-fin (TZC-BH01) Sincerely, CHUNG Yunjung / CEO

March 19, 2012 Fede ral C ommunications Commission Equipment Aut horization Divi si on, Application Processing Branc h 7435 Oakl and Mills Roa d Col umbi a, MD21046 TO WHOM IT MAY C ONCERN Pur suant t o Paragraphs §0.457 and 0.459 of t he C ommission's Rul es ( 47 C.F .R ) a nd Section §552(b)(4) o f t he F reedom of Infor mation Act, Cor eOptix Inc.request s confide ntialit y f or t he following products: FCC ID N umber ProductDescription (Model) CR4-TZC-BH01 Blu e-fin (TZC-BH01) The request ed Permanent a nd Short- Term C onfide ntial e xhi bi ts art listed as f ollows: PERMANENT AND SHORT-TERM CONFIDENTIAL LIST Exhib itDescriptio n PERMANENT 1Blo ck Diagram 2Operational Descrip tion 3Schematics 4Part Lis t No ot her items submitted as part of the equipment aut horization filing pr oc ess are de emed confide ntial. The above exhi bits contain CoreOptix Inc . trade secrets and pr oprietary infor mation tha t could be of be ne fit to our competitors regardi ng the de si gn of our products. This material is not customarily ava ila bl e t o the general p ublic a nd we r equest t ha t it be w ithheld from public i nspection. Sincerely, CHUNG Yunjung / CEO

SK TECH CO., LTD. Page 1 of 4 SKTRFC-120319-009 FCC ID: CR4-TZC-BH01 Internal Photographs <Photograph 1: Cover removed> SK TECH CO., LTD. Page 2 of 4 SKTRFC-120319-009 FCC ID: CR4-TZC-BH01 <Photograph 2: Main board- Front view> SK TECH CO., LTD. Page 3 of 4 SKTRFC-120319-009 FCC ID: CR4-TZC-BH01 <Photograph 3: Main board- Rear view> SK TECH CO., LTD. Page 4 of 4 SKTRFC-120319-009 FCC ID: CR4-TZC-BH01 <Photograph 4: RF Zoom>

SK TECH CO., LTD. Page 2 of 37 SKTRFC-120319-009 FCC ID: CR4-TZC-BH01 >> CONTENTS << 1. GENERAL ···························································································4 2. TEST SITE ···························································································4 2.1 Location ·························································································4 2.2 List of Test and Measurement Instruments ·················································5 2.3 Test Date ·························································································5 2.4 Test Environment ···············································································5 3. DESCRIPTION OF THE EQUIPMENT UNDER TEST ··································6 3.1 Rating and Physical Characteristics ·························································6 3.2 Equipment Modifications ·····································································6 3.3 Submitted Documents ·········································································6 4. MEASUREMENT CONDITIONS ······························································7 4.1 Description of test configuration ·····························································7 4.2 List of Peripherals ··············································································7 4.3 Type of Used Cables ···········································································7 4.4 Uncertainty ······················································································7 5. TEST AND MEASUREMENTS ·································································8 5.1 ANTENNA REQUIREMENT ······························································8 5.1.1 Regulation ··················································································8 5.1.2 Result ·······················································································8 5.2 MAXIMUM PEAK OUTPUT POWER ·················································9 5.2.1 Regulation ··················································································9 5.2.2 Test Procedure ·············································································9 5.2.3 Test Results ················································································9 Table 1: Measured values of the Maximum Peak Output Power (Conducted)····························9 Figure 1: Plot of the Maximum Peak Output Power (Conducted) ········································· 10 5.3 CARRIER FREQUENCY SEPARATIONS and 20 dB BANDWIDTH ·········· 12 5.3.1 Regulation ················································································ 12 5.3.2 Test Procedure ··········································································· 12 5.3.3 Test Results ·············································································· 12 Table 2: Measured values of the Carrier Frequency Separation and 20 dB Bandwidth ·············· 12 Figure 2: Plot of the Carrier Frequency Separation ························································ 13 Figure 3: Plot of the 20dB Channel Bandwidth ····························································· 15 5.4 NUMBER OF HOPPING CHANNELS ················································ 17 5.4.1 Regulation ················································································ 17 5.4.2 Test Procedure ··········································································· 17 5.4.3 Test Results ·············································································· 17 Table 3: Measured values of the Number of Hopping Channels ········································ 17 Figure 4: Plot of the Number of Hopping Channels ························································ 18 SK TECH CO., LTD. Page 3 of 37 SKTRFC-120319-009 FCC ID: CR4-TZC-BH01 5.5 TIME OF OCCUPANCY (DWELL TIME) ··········································· 19 5.5.1 Regulation ················································································ 19 5.5.2 Test Procedure ··········································································· 19 5.5.3 Test Results ·············································································· 19 Table 4: Measured values of the Time of Occupancy ····················································· 19 Figure 5: Plot of the Time of Occupancy ···································································· 20 5.6 SPURIOUS EMISSION, BAND EDGE, AND RESTRICTED BANDS ········· 22 5.6.1 Regulation ················································································ 22 5.6.2 Test Procedure ··········································································· 22 5.6.3 Test Results ·············································································· 24 Table 5: Results for the final radiated measurements of the field strength of spurious emission····· 24 Figure 6: Plot of the Band Edge (Conducted) ································································ 25 Figure 7: Plot of the Band Edge (Radiated) ··································································· 26 Figure 8: Spurious RF conducted emission ··································································· 28 Figure 9: Emission plot for the preliminary radiated measurements ······································ 31 5.7 AC POWER LINE CONDUCTED EMISSIONS ···································· 34 5.7.1 Regulation ················································································ 34 5.7.2 Test Procedure ··········································································· 34 5.7.3 Test Results ·············································································· 35 Table 6: Measured values of the Conducted Emissions ···················································· 35 Figure 10: Plot of the Conducted Emissions ·········································…

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SK TECH CO., LTD. Page 1 of 3 SKTRFC-120319-009 FCC ID: CR4-TZC-BH01 Test set up photos <Radiated Emissions - Front View> <Radiated Emissions - Rear View> SK TECH CO., LTD. Page 2 of 3 SKTRFC-120319-009 FCC ID: CR4-TZC-BH01 <Radiated Emissions - below 30 MHz> <Radiated Emissions - below 1 GHz> SK TECH CO., LTD. Page 3 of 3 SKTRFC-120319-009 FCC ID: CR4-TZC-BH01 <Radiated Emissions - above 1 GHz> <AC Power Line Conducted Emissions>