V6OLMT910WIRELESS CALLING SYSTEM

Wireless Calling System Model : LM - T910Model : LM - T910 The Transmitter's Group ID must be the same as Receiver's Group ID. 2. Setting of Group ID No.1No.9 No.2 No.10 No.3 No.11 No.4 No.12 No.5 No.13 No.6 No.14 No.7 No.15 No.8 No.16 Call ButtonClear ButtonLED LampCase 60 x 60 x 18 mm3.5 Kg Warranty (Please attach this) Head Office & Factory www.qufield.com [email protected] USER INFORMATION Acknowledging Special Precautionsand the FCC Industry Canada Notice Cautions Modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. FCC compliance Information When used the This device complies with part 15 of 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. Information to User This equipment has been tested and found to comply with the limits for a ClassBdigital 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,ifnot installed and used in accordance withthe instructions, may cause harmfulinterference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment doescause harmful interference to radioor television reception, which can be determined byturningtheequipmentoffandon,theuser is encouraged to try to correct the interference by one or more of the followingmeasures: - Reorient or relocate the receiving antenna. - Increase the separation between the equipment and receiver - Connect the equipment into an outleton a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help. .

1485-13,BF1, SONGRYONG BLDG. SEOCHO-DONG, SEOCHO-GU, SEOUL, Seoul KOREA TEL No : +82-31-420-4782 FAX No : +82-31-420-4382 March 27, 2008 Federal Communications Commission Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 LETTER OF AUTHORIZATION To whom it may concern: We, the undersigned, hereby authorize LTA Co., Ltd., to act on our behalf in all manners relating to application for equipment authorization for FCC ID: V6OLMT910. including signing of all documents relating to these matters. Any and all acts carried out by LTA Co., Ltd., on our behalf shall have the same affect as acts of our own. This authorization is valid until further written notice from QUFIELD CO.,LTD. LTA Co.,LTD. (Contact Person) Contact name: LEE, Kyung-Taek Position: Manager Sincerely, Sang duck, Lee / Director QUFIELD CO., LTD. http://www.qufield.com [email protected]

1485-13,BF1, SONGRYONG BLDG. SEOCHO-DONG, SEOCHO-GU, SEOUL, Seoul KOREA TEL No : +82-31-420-4782 FAX No : +82-31-420-4382 March 27, 2008 Federal Communications Commission Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 In re : QUFIELD CO.,LTD. FCC ID : V6OLMT910 Request for Confidentiality Gentlemen: Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, we hereby request confidential treatment of information accompanying this application as outlined below: Exhibit Type File Name Schematics [V6OLMT910] SCH.pdf Parts list [V6OLMT910] PL.pdf Block diagram [V6OLMT910] BLK.pdf Operational description [V6OLMT910] OpDes.pdf The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that pursuant to Section 0.457 of the Rules, disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. Sincerely, Sang duck, Lee / Director QUFIELD CO., LTD. http://www.qufield.com [email protected]

FCC ID:V6OLMT910 Copyright ○ c 2008, LTA Co., Ltd. Page 1 of 2 FCC ID:V6OLMT910 Copyright ○ c 2008, LTA Co., Ltd. Page 2 of 2

SAMPLE LABEL & LOCATION FCC ID:V6OLMT910

FCC ID:V6OLMT910 Copyright ○ c 2008, LTA Co., Ltd. Page 1 of 2 FCC ID:V6OLMT910 Copyright ○ c 2008, LTA Co., Ltd. Page 2 of 2

Ref. No.: LR500190803E Copyright ○ c 2008, LTA Co., Ltd. Page 1 of 19 243 Jubug-Ri,Yangji-Myeon, Yongin-Si, Gyeonggi-Do, Korea 449-822 Tel: +82-31-323-6008 Fax: +82-31-323-6010 http://www.ltalab.com Dates of Tests: March 19 ~ 24, 2008 Test Report S/N: LR500190803E Test Site : LTA CO., LTD. CERTIFICATION OF COMPLIANCE FCC ID APPLICANT TEST REPORT FCC Classification : Part 15 Security/Remote Control Transmitter Manufacturing Description : WIRELESS CALLING SYSTEM Manufacturer : QUFIELD CO.,LTD. Model name : LM-T910 Test Device Serial No.: : Identification FCC Rule Part(s) : FCC Part 15 Subpart C ; ANSI C-63.4-2003 Frequency Range : 433.92 MHz Data of issue : March 26, 2008 This test report is issued under the authority of: The test was supervised by: Dong –Min JUNG, Technical Manager Kyung-Taek LEE, Test Engineer This test result only responds to the tested sample. It is not allowed to copy this report even partly without the allowance of the test laboratory. This report must not be used by the applicant to claim product endorsement by any agency. NVLAP LAB Code.: 200723-0 V6OLMT910 DAE MYUNG ELECTRONICS CO.,LTD Ref. No.: LR500190803E Copyright ○ c 2008, LTA Co., Ltd. Page 2 of 19 TABLE OF CONTENTS 1. GENERAL INFORMATION’S -------------------------------------------------------------------------- 2. INFORMATION’S ABOUT TEST ITEM ------------------------------------------------------------- 3. TEST REPORT 3.1 SUMMARY OF TESTS ------------------------------------------------------------------------------ 3.2 TRANSMITTER REQUIREMENTS 3.2.1 CONDUCTED EMISSION --------------------------------------------------------------------- 3.2.2 RADIATED EMISSION ------------------------------------------------------------------------ APPENDIX APPENDIX 1 BANDWIDTH OF EMISSION ------------------------------------------------------ APPENDIX 2 DUTY CYCLE DETERMINATION ------------------------------------------------ APPENDIX 3 THE EMITTING TIME OF FUNDAMENTAL FREQUENCY ---------------- APPENDIX 4 TEST EQUIPMENT USED FOR TESTS ------------------------------------------ APPENDIX 5 LABEL AND USER'S MANUAL INFORMATION ----------------------------- 3 4 5 6 7 9 11 13 15 17 Ref. No.: LR500190803E Copyright ○ c 2008, LTA Co., Ltd. Page 3 of 19 1. General information’s 1-1 Test Performed Company name : LTA Co., Ltd. Address : 243, Jubug-ri,Yangji-Myeon,Youngin-Si, Kyunggi-Do, Korea. 449-822 Web site : http://www.ltalab.com E-mail : [email protected] Telephone : +82-31-323-6008 Facsimile +82-31-323-6010 Quality control in the testing laboratory is implemented as per ISO/IEC 17025 which is the “General requirements for the competents of calibration and testing laboratory”. 1-2 Accredited agencies LTA Co., Ltd. is approved to perform EMC testing by the following agencies: Agency Country Accreditation No. Validity Reference NVLAP U.S.A 200723-0 2008-09-30 ECT accredited Lab. RRL KOREA KR0049 2009-06-20 EMC accredited Lab. FCC U.S.A 610755 Updating FCC filing VCCI JAPAN R2133, C2307 2008-06-22 VCCI registration IC CANADA IC5799 2008-04-23 IC filing Ref. No.: LR500190803E Copyright ○ c 2008, LTA Co., Ltd. Page 4 of 19 2. Information’s about test item 2-1 Client Company name : QUFIELD CO.,LTD. Address : 1485-13,BF1, SONGRYONG BLDG. SEOCHO-DONG, : SEOCHO-GU, SEOUL, KOREA. Telephone : 82-31-420-4782 2-2 Equipment Under Test (EUT) Trade name : Wireless Calling System Model name : LM-T910 Serial number : Identification Date of receipt : March 17, 2008 EUT condition : Pre-production, not damaged Antenna type : Internal Wire antenna Frequency Range : 433.92 MHz Number of channels : 1 Channel spacing : Not concerned Power Source : DC 12V(alkaline battery) Power level, frequency range and channels characteristics are not user adjustable. 2-3 Tested frequency Frequency TX RX Low - - Mid 433.92 MHz - High - - Note: Measurements were performed top and bottom location in the frequency range of operation according to the section 15.31(m) 2-4 Ancillary Equipment Equipment Model No. Serial No. Manufacturer The EUT itself forms a system. No support equipment is requited for its normal operation. Ref. No.: LR500190803E Copyright ○ c 2008, LTA Co., Ltd. Page 5 of 19 3. Test Report 3.1 Summary of tests Parameter Test procedure Status Antenna Requirement FCC Part 15.203 C 2) Conducted Emission FCC Part 15.107 NA 3) Restricted Bands of Operation FCC Part 15.205 / 209 C Operation mode FCC Part 15.231 a) C 4) Radiated emissions FCC Part 15.231 b) C 20dB Bandwidth FCC Part 15.231 c) C Note 1: C=Complies NC=Not Complies NT=Not Tested NA=Not Applicable Note 2 : Internal Wire antenna without connector Note 3 : Operated by battery. Note 4 The emitting time of fundamental frequency is less than 5seconds. Refer to the APPENDIX 3. Note 5 : The data in this test report are traceable to the national or international standards. A sample calculation: COR. F (correction factor)= Antenna factor + Cable loss- Amp.gain- Distance correction Emission Level= meter reading + COR.F Ref. No.: LR500190803E Copyright ○ c 2008, LTA Co., Ltd. Page 6 of 19 3.2 Transmitter requirements 3.2.1 Conducted Emission Procedure: The conducted emissions are measured in the shielded room with a spectrum analyzer in peak hold. While the measurement, EUT had its hopping function disabled at the middle channels in line with Section 15.31(m). Emissions closest to the limit are measured in the quasi-peak mode (QP) with the tuned receiver using a bandwidth of 9 kHz. The emissions are maximized further by cable manipulation and Exerciser operation. The highest emissions relative to the limit are listed. Measurement Data: - The EUT operates solely by the battery. - According to the rule of section 15.207(c), The EUT exempt to the power line conducted test. LIMIT: Frequency Range Near-peak Average 0.15 ~ 0.5 MHz 66 ~ 56 dBuV 56 ~ 46 dBuV 0.5 ~ 5 MHz 56 dBuV 46 dBuV 5 ~ 30 MHz 60 dBuV 50 dBuV Note: The limits will decrease with the frequency logarithmically within 0.15MHz to 0.5MHz Ref. No.: LR5…

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FCC ID:V6OLMT910 Copyright Ⓒ 2008, LTA Co., Ltd. Page 1 of 1 Radiated Emission