NTMWT480T-EJ8LTWireless Microphone

TCB Q and A.txt From: S. S. Liou [[email protected]] Sent: September042003Thursday 7:47 PM To: Mike Kuo Subject: Re: E-J ELECTRONICS CO., LTD., FCC ID:NTMWT480T-EJ8LT, AN03T3223 Hi Mike, Ans.#1 Please refer to attached revised block diagram. Ans.#2 Please refer to attached revised ID label. Best Regards, ================================ S. S. Liou Engineer / EMC Dep. II ETC ----- Original Message ----- From: "Mike Kuo" <[email protected]> To: "Will Yauo (E-mail)" <[email protected]>; "ETC/Iris (E-mail)" <[email protected]> Sent: Friday, September 05, 2003 8:58 AM Subject: FW: E-J ELECTRONICS CO., LTD., FCC ID:NTMWT480T-EJ8LT, AN03T3223 > > > -----Original Message----- > From: CERTADM > Sent: Thursday, September 04, 2003 5:58 PM > To: '[email protected]' > Subject: E-J ELECTRONICS CO., LTD., FCC ID:NTMWT480T-EJ8LT, AN03T3223 > > > Notice_content > ------------- > Question #1 In the test report and TCB application form, the frequency range > of 740 - 806MHz is indicated. However, in the functional block > diagram, the frequency range is listed as 794-806MHz. Please confirm the > frequency range and provide revised document as needed. > > Question #2: FCC ID number listed in the FCC ID label format does not agree > with TCB application form and test report. Please confirm the FCC ID label > for this application. ( NTMWT480T-EJ8LT Vs NTMWT480T-EJ-8LT). > > Best Regards > > > > Mike Kuo > The items indicated above must be submitted before processing can continue > on the above referenced application. Failure to provide the requested > information within 30 days of the original e-mail date may result in > application dismissal and forfeiture of the filing fee. 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 e-mail address listed below the name of the sender. Page 1 TCB Q and A.txt > Page 2

ETC Report No.:ET92R-06-059 FCC ID.:NTMWT480T-EJ8LT Rev. 2.0 CONSTRUCTED PHOTOS of EUT Front View of EUT Top View of EUT ETC Report No.:ET92R-06-059 FCC ID.:NTMWT480T-EJ8LT Rev. 2.0 CONSTRUCTED PHOTOS of EUT Side View of EUT Rear View of EUT

EJ-8LT; WT-480T Label Size: 10mm (H)*30mm(W) Bottom View Label

ETC Report No.:ET92R-06-059 FCC ID.:NTMWT480T-EJ8LT Rev. 2.0 CONSTRUCTED PHOTOS of EUT Internal View of EUT Component View of EUT ETC Report No.:ET92R-06-059 FCC ID.:NTMWT480T-EJ8LT Rev. 2.0 CONSTRUCTED PHOTOS of EUT Solder View of EUT

The EUT is a frequency modulation Wireless Microphone with following features: Operation Frequency Range:740-806MHz. Type of Modualtion: FM, 172KF3E. This Wireless Microphone operates within UHF band with PLL synthesized. There are 16 channel available and channel used can be selected from a DIP switch.

EJ-8LT&WT-480T Required information according to FCC 2.1033(c)(1)-(9) (1) Applicant and manufacture: (2) E-J ELECTRONICS CO., LTD. 4F, NO.11, Lane 125, Sec 1, Kuo Kwang Road Ta Li City, Taichung Hsien Taiwan R .O .C . (3) FCC ID: NTMWT480T-EJ8LT (4) Installation and Operation Instructions: Please fine user’s manual attached. (5) Type of Emission: 172KF3E (2M+2D: 2X38+2X48=172kHz) (6) Frequency Range: 740-806 MHz (7) Power limit of applicable part: According to Part 74 subpart H, the maximum permissive power is 50mW. (8) The DC voltage applied to and DC current in to the several elements of the final RF amplifying device: DC 2.4V, 100mA (9) Tune-up Procedure: EJ-801TS Tune-up Procedure 1. After AF final amplify via U1 of Audio PCB, adjust VR2 to control AF level. 2. The audio frequency is modulated which can get RF signal via modulator VCO. 3. Adjust VC1 of RF PCB to correct the reference frequency. 4. The Osc. Signal coupled to drive amplifier Q7 and power amplifier Q8 to get better RF level.

Rev. 2.0 FCC Part 74 Subpart H EMI TEST REPORT of E.U.T. : Wireless Microphone TX FCC ID. : NTMWT480T-EJ8LT MODEL : WT-480T and EJ-8LT Working Frequency : 740MHz-806MHz for APPLICANT : E-J Electronics Co., Ltd. ADDRESS : 4F, No. 11, Lane 125, Sec, Kuo Kwang Road Ta Li City, Taichung Hsien Taiwan R.O.C. Test Performed by ELECTRONICS TESTING CENTER, TAIWAN NO. 34, LIN 5, DING FU TSUN, LINKOU HSIANG TAIPEI HSIEN, TAIWAN, R.O.C. Tel:(02)226023052 Fax:(02)26010910 http://www.etc.org.tw ; e-mail : [email protected] Report Number : ET92R-06-059 ETC Report No.:ET92R-06-059 FCC ID.: NTMWT480T-EJ8LT Rev. 2.0 TEST REPORT CIRTIFICATION Applicant : E-J ELECTRONICS CO., LTD.. 4F, No.11, Lane 125, Sec 1, Kuo Kwang Road Ta Li City, Taichung Hsien Taiwan R.O.C. Manufacturer : E-J ELECTRONICS CO., LTD.. 4F, No.11, Lane 125, Sec 1, Kuo Kwang Road Ta Li City, Taichung Hsien Taiwan R.O.C. Description of EUT : a) Type of EUT : Wireless Microphone TX b) Trade Name : OKAYO c) Model No. : WT-480T and EJ-8LT d) FCC ID : NTMWT480T-EJ8LT e) Working Frequency : 740MHz-806MHz f) Power Supply : DC 3V Batteries Regulation Applied : FCC Rules and Regulations Part 74 Subpart H (2002) I HEREBY CERTIFY THAT; The data shown in this report were made in accordance with the procedures given in ANSI C63.4 and the energy emitted by the device was founded to be within the limits applicable. I assume full responsibility for accuracy and completeness of these data. Issued Date : Aug. 25, 2003 Test Engineer : ( Kevin Lee ) Approve & Authorized Signer : Will Yauo, Manager EMC Dept. II of ELECTRONICS TESTING CENTER, TAIWAN ETC Report No.:ET92R-06-059 FCC ID.: NTMWT480T-EJ8LT Rev. 2.0 Table of Contents Page 1. GENERAL INFORMATION.....................................................................................................................................................1 1.1 PRODUCT DESCRIPTION...........................................................................................................................................................1 1.2 CHARACTERISTICS OF DEVICE:...............................................................................................................................................1 1.3 TEST METHODOLOGY..............................................................................................................................................................1 1.4 TEST FACILITY..........................................................................................................................................................................1 2. REQUIREMENTS OF PROVISIONS.....................................................................................................................................2 2.1 DEFINITION................................................................................................................................................................................2 2.2 FREQUENCIES AVAILABLE......................................................................................................................................................2 2.3 REQUIREMENTS FOR RADIO EQUIPMENT ON CERTIFICATION........................................................................................2 2.4 LABELING REQUIREMENT.......................................................................................................................................................3 3. OUTPUT POWER MEASUREMENT......................................................................................................................................4 3.1 PROVISION APPLICABLE..........................................................................................................................................................4 3.2 MEASUREMENT PROCEDURE..................................................................................................................................................4 3.3 TEST DATA.................................................................................................................................................................................6 3.4 RESULT CALCULATION............................................................................................................................................................7 3.5 TEST EQUIPMENT.....................................................................................................................................................................7 4. MODULATION CHARACTERISTICS..................................................................................................................................8 4.1 PROVISIONS APPLICABLE........................................................................................................................................................8 4.2 MEASUREMENT METHOD.......................................................................................................................................................8 4.3 MEASUREMENT INSTRUMENT................................................................................................................................................9 4.4 MEASUREMENT RESULT..........................................................................................................................................................9 5. OCCUPIED BANDWIDTH OF EMISSION.........................................................................................................................11 5.1 PROVISIONS APPLICABLE......................................................................................................................................................11 5.2 MEASUREMENT METHOD.....................................................................................................................................................11 5.3 OCCUPIED BANDWIDTH TEST EQUIPMENT.............................................................................…

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ETC Report No.:ET92R-06-059 FCC ID.:NTMWT480T-EJ8LT Rev. 2.0 Radiated Measurement Photos