JX6WMA268B-WTB700Wireless Amplifier

FCC ID. : JX6WMA268B-WTB700 Assessment Number : AN01T 1368 Dear Sir, This is to request confidentiality on information submitted for above application. Due to we found recently that our submitted information was used by other applicant without our authorization. This is absolutely illegal. So, we would like to request confidentiality on some exhibits we submitted for above original application for the reason for 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 Type listed below routinely available for public inspection : Block Diagram and Schematics

From: etcemi [[email protected]] Sent: Thursday, September 20, 2001 11:36 PM To: Mike Kuo Subject: Re: KAO HUI ELECTRONIC , FCC ID:JX6WMA268B-WTB700, AN01T1368 Dear Mike, Thanks for your reply. Please check my explanation below: Question #1: There are two rule parts may be applicable for this device which is opearating in 169 - 172MHZ band. Either Part 74 or Part 90. This device does not have , so Part 74 does not apply to this product. This device should comply with Part 90.265(b) which is designated to Wireless Microphone under Private Land Mobile Services. In the test report, all technical limits are reference to Part 74 requirements, please make necessary corrections and provided revised Test Report. ANS.: I am very sorry for the omission. This test report was created from a test report according to Part 74, so there are some descriptions that are not revised perfectly. However, we did perform the test according to Part 90, although these two sections are same on the test. Attached please find the corrected test report. By the way, as I knew and also I had the experience, Part 74 Subpart H is special for Low Power Auxiliary Station. The definition for Low Power Auxiliary Station is decribed on section 74.801 and there is no any requirement of the capabilities in connecting to broadcast station. A wireless MIC will be allowed to appy for Part 74 provided the operational frequency is within the specified band. This was my experience with FCC application. Question #2: Emission Designator indicated on the page 1 of test report is 34KF3E as well as in the operational description. However, the emission designator indicated on the application form is 54KF3E. Please explain and justify the emission designator by using Carson Rules. ANS.: Sorry for our omission. The 34kF3E is the Emission Designator of the original Part 74 report. The correct Emission Designator for this wireless MIC is 54kF3E. The applicable rule is 2M+2D= 2*15(kHz)+2*12(kHz)=54kF3E. If you have any further questions, please infrom me as soon as possible. And would you grant our other three application OBDAM80000612 / AN01T1434, OBDT20H0621 / AN01T1433, and M4Y-XI-300/ AN01T1497 with top priority? I have sent required explanations for two times. I'll be grateful if you could do me this favor. Regards, K. C. Chen ETC/EMC Department II ----- Original Message ----- From: "Mike Kuo" <[email protected]> To: "K. C. (E-mail)" <[email protected]> Sent: Friday, September 21, 2001 8:36 AM Subject: FW: KAO HUI ELECTRONIC , FCC ID:JX6WMA268B-WTB700, AN01T1368 > > > -----Original Message----- > From: CERTADM > Sent: Thursday, September 20, 2001 5:34 PM > To: Mike Kuo > Subject: KAO HUI ELECTRONIC , FCC ID:JX6WMA268B-WTB700, AN01T1368 > > > Notice_content > ------------- > Question #1: There are two rule parts may be applicable for this device > which is opearating in 169 - 172MHZ band. Either Part 74 or Part 90. This > device does not have capabilities in connecting to broadcast station, so > Part 74 does not apply to this product. This device should comply with Part > 90.265(b) which is designated to Wireless Microphone under Private Land > Mobile Services. In the test report, all technical limits are reference to > Part 74 requirements, please make necessary corrections and provided revised > Test Report. > > Question #2: Emission Designator indicated on the page 1 of test report is > 34KF3E as well as in the operational description. However, the emission > designator indicated on the application form is 54KF3E. Please explain and > justify the emission designator by using Carson Rules. > > Best Regards > > Mike Kuo / TCB Certifier > The items indicated above must be submitted before processing can continue > on the above referenced application. Failure to provide the requested > information within 60 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. > >

ETC Report No.:ET90R-04-070-01 Sheet 1 of 2 Sheets FCC ID.: JX6WMA268B-WTB700 CONSTRUCTED PHOTOS of EUT 1. Front View of EUT 2. Rear View of EUT ETC Report No.:ET90R-04-070-01 Sheet 2 of 2 Sheets FCC ID.: JX6WMA268B-WTB700 CONSTRUCTED PHOTOS of EUT 3. Top View of EUT

ETC Report No.:ET90R-04-070-01 Sheet 1 of 2 Sheets FCC ID.: JX6WMA268B-WTB700 CONSTRUCTED PHOTOS of EUT 1. Internal View of EUT 2. Component View of Main Board ETC Report No.:ET90R-04-070-01 Sheet 2 of 2 Sheets FCC ID.: JX6WMA268B-WTB700 CONSTRUCTED PHOTOS of EUT 3. Solder View of Main Board

The EUT is a frequency modulation Wireless Amp lifier with following f eatures: Op eration Frequency Range: 169-172M Hz Typ e M odulation: FM , 34KF3E. This Wireless Amp lifier Portable is designed for two way communication, the transmitter unit with a microp hone can modulate the voice to RF carrier and transmit it to the base unit, and the Receiver receiv es t he RF signals and d emodulates the voice to send to any audio devices with an audio inp ut t erminal, for e xamp le a sp eaker or st ereo.


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± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ItemPart No.DescriptionQuantity 109K0100001Front Cover(white)1 209D0100008Back Cover(white)1 309D0100009Battery Cover(white)1 409D0100010Switch(white)1 505D4100003SJ-370 Ring1 611D02000522.6X6 Screw1 711D02000443X5 Screw1 814K1200054Switch Sticker1 914K12Frequency Sticker1 1014K1200051Battery Sticker1 1114K1200087FCC Sticker1 1214K1200295Note Sticker1 1311D0900020Clip1 1610D0500001Condenser Microphone1 1708D0800006Plastic Bag1 BOM of WTB-700

Tune-up procedure 1. When adjusting the RF Power at manufacturing, just turn L1, L2, L3. 2. L4 is where you adjust its accuracy.









 





       
 
   






 
   
 






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Text truncated - open the document above for the full version.

ETC Report No.:ET90R-04-070-01 FCC ID.: JX6WMA268B-WTB700 Radiated Measurement Photos