LL4UPL-83FWireless Microphone Assistant Listening System

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, any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate this equipment. (Example - use only shielded interface cables when connecting to computer or peripheral devices). 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.

ECEN ELECTRONICS CO., LTD. No.26-13-1, Fongle Road, Beitun District Taichung City 40673, Taiwan, R.O.C. Federal Communications Commission Dear Sir: We, the undersigned, hereby authorize ETS Dr. Genz Taiwan PS Co., Ltd. to act on our behalf in all matters relating to application for“Wireless Microphone Assistant Listening System” ( Model : Transmitter UPL-83F/UPL-83 and Receiver UR-818F/UR-818, FCC ID: LL4UPL-83F)＂authorization, including the signing of all documents relating to these matters. Any and all acts carried out by ETS Dr.Genz Taiwan PS Co., Ltd. on our behalf shall have the same effect as acts of our own. The applicant certifies that in the case of an individual applicant ( e.g., corporation ), no party to the applicant is subject to a denial of federal benefits, that includes FCC benefits, pursuant to section 5301 of the Anti-drug abuse Act of 1988, 21 U.S.C. 862. For a definition of a “party” for these purposes See 47 C.F.R. 1.2002 (b). By: By: Mr. Henry Lo (Signature) (Printed) Title : General Manager Applicant : ECEN ELECTRONICS CO., LTD. Address : No.26-13-1, Fongle Road, Beitun District, Taichung City 40673, Taiwan, R.O.C. Tel : +886-4-2422-3369 Fax: +886-4-2422-4360 Date : Nov 08, 2005

ECEN ELECTRONICS CO., LTD. No.26-13-1, Fongle Road, Beitun District Taichung City 40673, Taiwan, R.O.C. Federal Communications Commission FCC ID: LL4UPL-83F Dear Sir: This is to request confidentiality on information submitted for above application. We would like to request confidentiality on some exhibits we submitted for above original application for the reason of trade secret. If those exhibits are available for public inspection, any person who once gets the information contained in those exhibits will be able to design and to make the same products very easily. This is a very serious problem and huge loss for us, because we did invest so much on it. Please be not made the Exhibit Types listed below routinely available for public inspection: Part List Schematics Block Diagram By: By: Mr. Henry Lo (Signature) (Printed) Title : General Manager Applicant : ECEN ELECTRONICS CO., LTD. Address : No.26-13-1, Fongle Road, Beitun District, Taichung City 40673, Taiwan, R.O.C. Tel : +886-4-2422-3369 Fax: +886-4-2422-4360 Date : Nov 08, 2005

ETS DR.GENZ TAIWAN PS CO., LTD. Registration number: W6M20507-6078-C-1 FCC ID: LL4UPL-83F ETS Dr.Genz Taiwan PS Co., Ltd. External Photo ETS DR.GENZ TAIWAN PS CO., LTD. Registration number: W6M20507-6078-C-1 FCC ID: LL4UPL-83F ETS Dr.Genz Taiwan PS Co., Ltd. ETS DR.GENZ TAIWAN PS CO., LTD. Registration number: W6M20507-6078-C-1 FCC ID: LL4UPL-83F ETS Dr.Genz Taiwan PS Co., Ltd. ETS DR.GENZ TAIWAN PS CO., LTD. Registration number: W6M20507-6078-C-1 FCC ID: LL4UPL-83F ETS Dr.Genz Taiwan PS Co., Ltd. ETS DR.GENZ TAIWAN PS CO., LTD. Registration number: W6M20507-6078-C-1 FCC ID: LL4UPL-83F ETS Dr.Genz Taiwan PS Co., Ltd. ETS DR.GENZ TAIWAN PS CO., LTD. Registration number: W6M20507-6078-C-1 FCC ID: LL4UPL-83F ETS Dr.Genz Taiwan PS Co., Ltd. ETS DR.GENZ TAIWAN PS CO., LTD. Registration number: W6M20507-6078-C-1 FCC ID: LL4UPL-83F ETS Dr.Genz Taiwan PS Co., Ltd. ETS DR.GENZ TAIWAN PS CO., LTD. Registration number: W6M20507-6078-C-1 FCC ID: LL4UPL-83F ETS Dr.Genz Taiwan PS Co., Ltd. ETS DR.GENZ TAIWAN PS CO., LTD. Registration number: W6M20507-6078-C-1 FCC ID: LL4UPL-83F ETS Dr.Genz Taiwan PS Co., Ltd. ETS DR.GENZ TAIWAN PS CO., LTD. Registration number: W6M20507-6078-C-1 FCC ID: LL4UPL-83F ETS Dr.Genz Taiwan PS Co., Ltd. ETS DR.GENZ TAIWAN PS CO., LTD. Registration number: W6M20507-6078-C-1 FCC ID: LL4UPL-83F ETS Dr.Genz Taiwan PS Co., Ltd.

25mm 5.4mm FCC ID: LL4UPL-83F

ETS Dr.Genz Taiwan PS Co., LTD. FCC Registration No.: 930600 Industry Canada filed test laboratory Reg. No. IC 5679 Accredited Testing Laboratory A2LA Cert.No.: 2300.01 PTCRB Accredited Type Certification Test House FCC TEST - REPORT FCC RULES PARTS 74 Subpart H, Section 74.861 FCC ID : LL4UPL-83F Test report no.:W6M20507-6078-C-1 ETS DR. GENZ TAIWAN PS CO., LTD 6F, NO. 58, LANE 188, RUEY-KUANG RD., NEIHU, TAIPEI 114, TAIWAN, R.O.C. PHONE 886-2-66068877 FAX 886-2-66068879 ETS DR. GENZ TAIWAN PS CO., LTD. Registration number: W6M20507-6078-C-1 FCC ID: LL4UPL-83F ETS Dr. Genz Taiwan PS Co., Ltd. 1 of 37 TABLE OF CONTENTS 1 GENERAL INFORMATION ............................................................................................... 3 1.1 N OTES...............................................................................................................................3 1.2 T ESTING LABORATORY...................................................................................................... 4 1.2.1 Location ................................................................................................................... 4 1.2.2 Details of accreditation status ................................................................................. 4 1.3 D ETAILS OF APPROVAL HOLDER........................................................................................ 4 1.4 A PPLICATION DETAILS...................................................................................................... 5 1.5 G ENERAL INFORMATION OF TEST ITEM............................................................................. 5 1.6 T EST STANDARDS.............................................................................................................. 6 2 TECHNICAL TEST .............................................................................................................. 6 2.1 S UMMARY OF TEST RESULTS............................................................................................. 6 2.2 T EST ENVIRONMENT.......................................................................................................... 6 2.3 T EST EQUIPMENT LIST...................................................................................................... 7 2.4 G ENERAL TEST PROCEDURE........................................................................................... 11 3 TEST RESULTS (ENCLOSURE)...................................................................................... 12 4 RF POWER OUTPUT (CONDUCTED) , FCC 2.1046 (A) ; 74.861 (E)......................... 13 4.1 T EST PROCEDURE............................................................................................................ 13 4.2 T EST RESULTS................................................................................................................. 13 5 RADIATED POWER.......................................................................................................... 14 5.1 T EST PROCEDURE............................................................................................................ 14 5.2 T EST RESULTS................................................................................................................. 15 6 MODULATION DEVIATION , FCC 2.1047 (B) ; 74.861(E) ............................................... 16 6.1 T EST PROCEDURE............................................................................................................ 16 6.2 T EST RESULTS................................................................................................................. 16 7 AUDIO FREQUENCY RESPONSE , FCC 2.1047 (A) .................................................... 17 7.1 T EST PROCEDURE............................................................................................................ 17 7.2 T EST RESULTS................................................................................................................. 17 8 OCCUPIED BANDWIDTH/EMISSION MASK, FCC 2.1049 (C) ; 74.861 (E)(5)........ 18 8.1 T EST PROCEDURE............................................................................................................ 18 8.2 T EST RESULTS................................................................................................................. 18 9 SPURIOUS EMISSIONS AT ANTENNA TERMINALS FCC2.1051 ; 74.861 (E) ....... 19 9.1 T EST PROCEDURE............................................................................................................ 19 9.2 T EST RESULTS................................................................................................................. 19 9.3 L IMIT.............................................................................................................................. 20 10 RADIATED SPURIOUS EMISSION , FCC 2.1053 ; 74.861 (E) ................................ 21 10.1 T EST PROCEDURE............................................................................................................ 21 ETS DR. GENZ TAIWAN PS CO., LTD. Registration number: W6M20507-6078-C-1 FCC ID: LL4UPL-83F ETS Dr. Genz Taiwan PS Co., Ltd. 2 of 37 10.2 TEST RESULTS................................................................................................................. 21 10.3 E XPLANATION OF TEST RESULT....................................................................................... 23 10.4 L IMITS............................................................................................................................. 23 11 LINE CONDUCTED EMISSION , FCC 15.207 ........................................................... 24 11.1 T EST PROCEDURE............................................................................................................ 24 11.2 T EST RESULTS................................................................................................................. 24 12 FREQUENCY STABILITY VS. TEMPERATURE , FCC 2.1055 , 7…

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ETS DR.GENZ TAIWAN PS CO., LTD. Registration number: W6M20507-6078-C-1 FCC ID: LL4UPL-83F ETS Dr.Genz Taiwan PS Co., Ltd. Set Up Photo ETS DR.GENZ TAIWAN PS CO., LTD. Registration number: W6M20507-6078-C-1 FCC ID: LL4UPL-83F ETS Dr.Genz Taiwan PS Co., Ltd.