Q5K12607T27 MHz TX

American Telecommunications Certification Body Inc. 6731 Whittier Ave, McLean, VA 22101 June 5, 2006 RE: K&B International Limited FCC ID: Q5K12607T After a review of the submitted information, I have a few comments on the above referenced Application. 1) Confidentiality has not been requested on any exhibits (i.e. block diagram/schematics) that most applications typically do ask for confidentiality on. Please confirm that confidentiality is not required for any exhibits or alternatively please provide a confidentiality letter to cover exhibits which may be deemed proprietary. Please let us know if you need further guidance on this issue. 2) Please provide information to support the RBW and VBW settings used for various frequencies measured (i.e. < 30 MHz, > 30 MHz). 3) In the users manual, the FCC information makes mention of a “truck”. This appears incorrect. Please review/correct as necessary. 4) FYI.....Please note that although we accept jpg images, the preferred file type is still considered pdf documents. This decreases processing time, files sizes, viewing problems, and problems with uploads to the FCC site. In the future, please consider provided images in pdf files. 5) FYI......Please upload the occupied bandwidth and duty cycle plots as a test report exhibit in the future. Timothy R. Johnson Examining Engineer mailto: [email protected] The items indicated above must be submitted before processing can continue on the above referenced application. Failure to provide the requested information may result in application termination. Correspondence should be considered part of the permanent submission and may be viewed from the Internet after a Grant of Equipment Authorization is issued. Please do not respond to this correspondence using the email reply button. In order for your response to be processed expeditiously, you must submit your documents through the AmericanTCB.com website. 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 sender.

Hi Tim How are you? Sorry for my late reply. Please refer to the following info for your comment. 1) The non-confidentiality is ok. 2) We use 9kHz RBW for carrier (27.145MHz) and 100kHz RBW for harmonic measurement. Also minimum 1kHz RBW for bandwidth measure. 3) Revised. Please review again 4) OK I will send the PDF format file to you next time. Since this is my first application for ATCB. 5) I have already uploaded in your homepage, but I have attached the PDF file to you again. Please review it. Thanks Thank you so much for the help and review our application. If you required any info for this application, please feel fee to contact us. Have a good day Regards Andrew -----Original Message----- From: Timothy R. Johnson [mailto:[email protected]] Sent: Tuesday, June 06, 2006 06:34 To: Danny Chui; Electrical EMC Subject: Review of K&B International, Ltd. FCC ID: Q5K12607T Andrew, Attached are the comments regarding this application. Please provide a response as soon as you can. Thank You, Timothy R. Johnson, NARTE Certified EMC Engineer (No. EMC-002205-NE) Examining Engineer American TCB, Inc. 6731 Whittier Ave. McLean, VA 22101 email: [email protected] alternate email: [email protected] USA direct number: 404-414-8071 & 703-310-6868 USA corporate phone: 703-847-4700 USA corporate fax: 703-847-6888 Taiwan phone: (02) 2658-5152 ext 306 Taiwan Cell: 0920-399-260 Bandwidth.pdf Subject: Review of K&B International, Ltd. FCC ID: Q5K12607T From: "Electrical EMC" <[email protected]> To: "Timothy R. Johnson" <[email protected]> Page 1 of 2In 6/12/2006Printed for "Timothy R. Johnson" <[email protected]> Duty cycle.pdf Q5K12607T Userman (Revised).pdf Page 2 of 2In 6/12/2006Printed for "Timothy R. Johnson" <[email protected]>

Operation Description (KR-1260 27MHz transmitter) The R/C Cyclone is a transmitter operating at 27.145 MHz and oscillated by crystal-controlled. The EUT is powered by 1 x 9V battery. There are two control levers on the EUT. Different combinations of the controls allow the EUT to transmit radio signals for the receiver to move forward, backward turn right and turn left. Referring to the circuit diagram, a brief circuit description is listed as follows: - U1 and associated circuit act as encoder. - Q1, Y1 and associated circuit act as oscillator. - Q2 and associated circuit act as RF amplifier.

TEST REPORT Report No. : AG011237-001 Date : 2006 June 02 Page 1 of 11 FCC ID: Q5K12607T This document shall not be reproduced except in full or with written approval by the laboratory. CMA Industrial Development Foundation Limited Room 1302, Yan Hing Centre, 9-13 Wong Chuk Yeung St.., Fo Tan, Shatin, Hong Kong. Tel: (852) 2698 8198 Fax: (852) 2695 4177 E-mail: [email protected] Web Site: http://www.cmatcl.com Application No. : LG207293(1) Applicant : K&B International Limited 406 Empire Centre 68 Mody Road, TST East Kowloon, Hong Kong Sample Description : One(1) submitted sample(s) stated to be R/C Cyclone Robot of Model No. KR-1260 Rating : 1 x 9V size battery No. of submitted sample : One (1) piece(s) *** Date Received : 2006 May 16 Test Period : 2006 May 16 – 2006 May 29 Test Requested : FCC Part 15 Certification. Test Method : 47 CFR Part 15 (10-1-05 Edition) ANSI C63.4 – 2003 Test Result : See attached sheet(s) from page 2 to 11. Conclusion : The submitted sample was found to comply with requirement of FCC Part 15 Subpart C. For and on behalf of CMA Industrial Development Foundation Limited Authorized Signature : ____________________________________________________ Danny Chui Deputy Manager - EL. Division TEST REPORT Report No. : AG011237-001 Date : 2006 June 02 Page 2 of 11 FCC ID: Q5K12607T This document shall not be reproduced except in full or with written approval by the laboratory. CMA Industrial Development Foundation Limited Room 1302, Yan Hing Centre, 9-13 Wong Chuk Yeung St.., Fo Tan, Shatin, Hong Kong. Tel: (852) 2698 8198 Fax: (852) 2695 4177 E-mail: [email protected] Web Site: http://www.cmatcl.com Table of Contents 1 General Information............................................................................................................................. 3 1.1 General Description ..................................................................................................................... 3 1.2 Location of the test site ................................................................................................................ 4 1.3 List of measuring equipment........................................................................................................ 5 2 Description of the radiated emission test ............................................................................................. 6 2.1 Test Procedure ............................................................................................................................. 6 2.2 Test Result ................................................................................................................................... 6 2.3 Radiated Emission Measurement Data ........................................................................................ 7 3 Description of the Line-conducted Test............................................................................................... 8 3.1 Test Procedure ............................................................................................................................. 8 3.2 Test Result ................................................................................................................................... 8 3.3 Graph and Table of Conducted Emission Measurement Data ..................................................... 8 4 Photograph ........................................................................................................................................... 9 4.1 Photographs of the Test Setup for Radiated Emission and Conduction Emission....................... 9 4.2 Photographs of the External and Internal Configurations of the EUT......................................... 9 5 Supplementary document................................................................................................................... 10 5.1 Bandwidth .................................................................................................................................. 10 5.2 Duty cycle .................................................................................................................................. 10 5.3 Transmission time ...................................................................................................................... 10 6 Appendices......................................................................................................................................... 11 TEST REPORT Report No. : AG011237-001 Date : 2006 June 02 Page 3 of 11 FCC ID: Q5K12607T This document shall not be reproduced except in full or with written approval by the laboratory. CMA Industrial Development Foundation Limited Room 1302, Yan Hing Centre, 9-13 Wong Chuk Yeung St.., Fo Tan, Shatin, Hong Kong. Tel: (852) 2698 8198 Fax: (852) 2695 4177 E-mail: [email protected] Web Site: http://www.cmatcl.com Test Result : 1 General Information 1.1 General Description The equipment under test (EUT) is a transmitter for R/C cyclone robot. It is operate at 27.145MHz which generated by the crystal. It is powered by 1 X 9V battery and it has two control trigger in the EUT. When the forward, backward, turn left and turn right trigger is pressed once, it will transmit a difference radio signal for receiver go to corresponding direction. The brief circuit description is listed as follows: - U1 and associated circuit act as encoder. - Q1, Y1 and associated circuit act as oscillator. - Q2 and associated circuit act as RF amplify. TEST REPORT Report No. : AG011237-001 Date : 2006 June 02 Page 4 of 11 FCC ID: Q5K12607T This document shall not be reproduced except in full or with written approval by the laboratory. CMA Industrial Development Foundation Limited Room 1302, Yan Hing Centre, 9-13 Wong Chuk Yeung St.., Fo Tan, Shatin, Hong Kong. Tel: (852) 2698 8198 Fax: (852) 2695 4177 E-mail: [email protected] Web Site: http://www.cmatcl.com Test Result : 1.2 Location of the test site Radiated emissions measurements are investiga…

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