AZPT4YBF-724 Channel Aircraft Radio Control

Request for Confidentiality 24 July 2002 American Telecommunications Certification Body, Inc. 6731 Whittier Avenue Suite C110 McLean, VA 22101 RE: Certification Application FCC ID: AZPT4YBF-72 Please be advised that the following information is to be held confidential and behalf of Futaba Corporation: • Block Diagram • Schematics • Description of Operation • Parts lists The application contains technical information which Futaba Corporation deems to be trade secrets and proprietary. If made public, the information might be used to the disadvantage of the applicant in the market place. Thank you for your attention to this matter. Signatory

EMV-Prüfzentrum EMI/EMC-Testcenter Hausanschrift: Sparkasse (BLZ 742 500 00) 14 076 Handelsregister Straubing Äussere Frühlingstrasse 45 y D-94315 Straubing Deutsche Bank (BLZ 750 700 13) 9 855 255 HRB-Nr. 9302 Telefon (0 94 21) 55 22-0 Dresdner Bank (BLZ 700 800 00) 0 803 965 300 Geschäftsführer: Telefax (0 94 21) 55 22-99 HypoVereinsbank (BLZ 742 200 75) 2 615 649 Johann Roidt, Manfred Amann [email protected] y http://www.senton.de Postgiro Nürnberg (BLZ 760 100 85) 1 778 87 857 Senton GmbH y Äussere Frühlingstrasse 45 y D-94315 Straubing Timothy R. Johnson American TCB 2002-09-18 In reference to FCC ID AZPT4YBF-72 1) We confirm that the correct emission designator is F1D. A corrected Form 731 will be submitted. Johann Roidt Senton GmbH

EMV-Prüfzentrum EMI/EMC-Testcenter Hausanschrift: Sparkasse (BLZ 742 500 00) 14 076 Handelsregister Straubing Äussere Frühlingstrasse 45 y D-94315 Straubing Deutsche Bank (BLZ 750 700 13) 9 855 255 HRB-Nr. 9302 Telefon (0 94 21) 55 22-0 Dresdner Bank (BLZ 700 800 00) 0 803 965 300 Geschäftsführer: Telefax (0 94 21) 55 22-99 HypoVereinsbank (BLZ 742 200 75) 2 615 649 Johann Roidt, Manfred Amann [email protected] y http://www.senton.de Postgiro Nürnberg (BLZ 760 100 85) 1 778 87 857 Senton GmbH y Äussere Frühlingstrasse 45 y D-94315 Straubing Timothy R. Johnson American TCB 2002-09-17 In reference to FCC ID AZPT4YBF-72 1) The cover that has been added is glued to the cabinet and can be considered permanently installed.. 2) The correct emission designator is F3D since the modulation signal is a digital signal. Johann Roidt Senton GmbH

EMV-Prüfzentrum EMI/EMC-Testcenter Hausanschrift: Sparkasse (BLZ 742 500 00) 14 076 Handelsregister Straubing Äussere Frühlingstrasse 45 y D-94315 Straubing Deutsche Bank (BLZ 750 700 13) 9 855 255 HRB-Nr. 9302 Telefon (0 94 21) 55 22-0 Dresdner Bank (BLZ 700 800 00) 0 803 965 300 Geschäftsführer: Telefax (0 94 21) 55 22-99 HypoVereinsbank (BLZ 742 200 75) 2 615 649 Johann Roidt, Manfred Amann [email protected] y http://www.senton.de Postgiro Nürnberg (BLZ 760 100 85) 1 778 87 857 Senton GmbH y Äussere Frühlingstrasse 45 y D-94315 Straubing Timothy R. Johnson American TCB 2002-09-16 In reference to FCC ID AZPT4YBF-72 1) An updated confidentiality letter will be submitted through ATCB website. 2) The frequency stability data has been amended as requested. A revised test report will be submitted. 3) Mass production samples will have a cover to prevent access to the crystal, see revised internal photos. 4) A revised test report will be submitted. 5) The users manual has been updated with the information as requested. 6) The Emission Designator can be found on page 26 of the report. Sample calculation for the necessary bandwidth has been included in the report. 7) A revised form 731 will be submitted. Johann Roidt Senton GmbH

American Telecommunications Certification Body Inc. 6731 Whittier Ave, McLean, VA 22101 August 19, 2002 RE: FUTABA Corporation of American FCC ID: AZPT4YBF-72 After a review of the submitted information, I have a few comments on the above referenced Application. 1) Please confirm if confidentiality is requested on the Parts List provided. If so, please update the confidentiality letter request to include this. 2) The frequency stability with respect to voltage variations should be performed for this type of device down to the battery operating end point (see 2.1057(d)(2)). This information was not been provided. 3) The crystal appears to be accessible from the outside of the device from the external photographs. This is not allowed. Please see 95.645. 4) Your limits are shown as -27.3 dBm. However 22.4 dBm - (56 + 10 log (0.174)) = -26.0 dBm. Please explain the discrepency. 5) The users manual should have the information from 95.653(2) & (3) added to the manual. Please note that only a portion of the manual was provided and this information may be contained in sections we do not have. 6) There is no emission designator description provided with this application as required by CFR 2.1033(c)(4). Please see 2.202 for examples and instructions. Please provide sample calculations for the necessary bandwidth. 7) Please update the 731 form to include the appropriate information in Section III, Item 6b & 6c. Timothy R. Johnson Examining Engineer Direct Phone: 404-414-8071 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.

American Telecommunications Certification Body Inc. 6731 Whittier Ave, McLean, VA 22101 September 17, 2002 RE: FUTABA Corporation of American FCC ID: AZPT4YBF-72 After a review of the submitted information, I have a few comments on the above referenced Application. 1) Plug in crystals are not to be accessible to the end user. Please comment on if the cover that has been added is glued in or considered permanently installed. 2) The newly uploaded 731 form states that the emission designator is F3D, while the test report states F3E (page 26) and F1D (page 3). Please clarify which is correct and justify the nature of the signal modulating the main carrier. Timothy R. Johnson Examining Engineer Direct Phone: 404-414-8071 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.

American Telecommunications Certification Body Inc. 6731 Whittier Ave, McLean, VA 22101 September 17, 2002 RE: FUTABA Corporation of American FCC ID: AZPT4YBF-72 After a review of the submitted information, I have a few comments on the above referenced Application. 1) Your last response stated that the emission designator should be F3D since the modulation signal is a digital signal. We agree that pulse position modulation would be considered digital, but the '3' in the emission designator denotes that the signal modulating the main carrier is analog. Shouldn't the emission designator be F1D. Please confirm. Timothy R. Johnson Examining Engineer Direct Phone: 404-414-8071 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.

Dear Mr. Johnson, Please see attached photo and schematics, which show compliance with 95.651 crystal control. Mit freundlichen Grüßen / Kind regards Christa Jäger SENTON GmbH Äußere Frühlingstraße 45 D-94315 Straubing Germany Phone: +49(0)9421-5522-12 Fax: +49(0)9421-5522-99 mailto:[email protected] http://www.senton.de SENTON GmbH: Geschäftsführer: Johann Roidt, Manfred Amann Sitz der Gesellschaft: Straubing Registergericht Straubing, HRB-Nr. 9302 Diese Nachricht und/oder Anhänge sind vertraulich und können der Geheimhaltungspflicht unterliegen. Wenn Sie nicht der vorgesehene Adressat sind, weisen wir Sie hiermit darauf hin, dass jegliche Nutzung, Weiterleitung und Kopien unzulässig sind. Benachrichtigen Sie uns bitte unverzüglich per eMail und löschen Sie diese Nachricht und/oder Anhänge aus Ihrem System. This mail and/or attachments are confidential and may also be legally privileged. If you are not the intended recipient, you are hereby notified, that any review, dissemination, distribution or copying of this eMail and/or attachments is strictly prohibited. Please notify us immediately by eMail and delete this message and all its attachments. -----Ursprüngliche Nachricht----- Von: Timothy R. Johnson [mailto:[email protected] ] Gesendet: Mittwoch, 28. Februar 2007 03:51 An: Johann Roidt Cc: Christa Jäger; [email protected] Betreff: Fwd: audit Johann, Subject: AW: audit From: Christa Jäger <[email protected]> To: <[email protected]> Cc: "Johann Roidt" <[email protected]> The FCC has asked the following question on an old application from 2002. Please help address ASAP. Additionally, please acknowledge receipt of this email as soon as received. 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 USA corporate phone: 703-847-4700 USA corporate fax: 703-847-6888 >X-Ninja-PIM: Scanned by Ninja >X-Ninja-AttachmentFiltering: (no action) >Date: Thu, 22 Feb 2007 17:54:04 -0500 (EST) ...snip... >Any questions about the content of this correspondence should be >directed to the e-mail address listed below the name of the sender. Fut 20364 Internal Photo with marked crystal.pdf Fut 20364 Schematics with marked crystal.pdf

FCC ID: AZPT4YBF-72 External Photos Page 1 of 2 FCC ID: AZPT4YBF-72 External Photos Page 2 of 2

FCC ID: AZPT4YBF-72 External Photos Page 1 of 2 FCC ID: AZPT4YBF-72 External Photos Page 2 of 2

FCC-ID: AZPT4YBF-72

FCC ID: AZPT4YBF-72 Internal Photos Page 1 of 5 FCC ID: AZPT4YBF-72 Internal Photos Page 2 of 5 FCC ID: AZPT4YBF-72 Internal Photos Page 3 of 5 FCC ID: AZPT4YBF-72 Internal Photos Page 4 of 5 FCC ID: AZPT4YBF-72 Internal Photos Page 5 of 5

EMV-Prüfzentrum EMI/EMC-Testcenter FCC-ID: AZPT4YBF-72 Test Report No. 55503-20364 Page 1 of 55 Pages Straubing, July 03 2002 T E S T - R E P O R T No. 55503-20364 for T4YBF 72 R/C Transmitter Applicant: Futaba Corporation Purpose of testing: To show compliance with - FCC Code of Federal Regulations, CFR 47, Part 95 - FCC Code of Federal Regulations, CFR 47, Part 2, Subpart J Note: The test data of this report relate only to the individual item which has been tested. This report shall not be reproduced except in full extent without the written approval of the testing laboratory. EMV-Prüfzentrum EMI/EMC-Testcenter FCC-ID: AZPT4YBF-72 Test Report No. 55503-20364 Page 2 of 55 Pages Table of Contents 1. Administrative Data ............................................................................................. 3 2. Identification of Test Laboratory .......................................................................... 4 3. Summary of Test Results .................................................................................... 5 4. Operation Mode of EUT....................................................................................... 6 5. Configuration of EUT and Peripheral Devices ..................................................... 7 6. Measuring Methods ............................................................................................. 8 6.1. Maximum Transmitter Power (§95.639)........................................................ 8 6.2. Frequency tolerance (§95.623)................................................................... 10 6.3. Emission Bandwidth (§95.633) ................................................................... 12 6.4. Unwanted Emission 30 MHz - 1 GHz (§95.635, §95.639)........................... 13 7. Photographs of Test Setups .............................................................................. 15 8. Equipment List................................................................................................... 17 9. Referenced Regulations .................................................................................... 19 10. List of Measurements ........................................................................................ 20 11. Test Results ...................................................................................................... 21 12. Additional Results.............................................................................................. 31 EMV-Prüfzentrum EMI/EMC-Testcenter FCC-ID: AZPT4YBF-72 Test Report No. 55503-20364 Page 3 of 55 Pages 1. Administrative Data Equipment Under Test (EUT): T4YBF 72 Serial number(s): 001 Type of equipment: R/C Transmitter Type of emission: F1D Parts/accessories: --- FCC-ID: AZPT4YBF-72 Applicant: Futaba Corporation (full address) R/C Engineering Unit 1 1080, Yabutsuka Chosei-son, Chosei-gun, Chiba-ken, 299-4395 Japan Contract identification: --- Contact person: Mr. Sakuma Manufacturer: Futaba Corporation Receipt of EUT: June19, 2002 Dates of test: June 19 to 29, 2002 Note: --- Responsible for testing: Thomas Eberl Responsible for test report: Thomas Eberl EMV-Prüfzentrum EMI/EMC-Testcenter FCC-ID: AZPT4YBF-72 Test Report No. 55503-20364 Page 4 of 55 Pages 2. Identification of Test Laboratory Test Laboratory: Senton GmbH EMI/EMC Test Center (full address): Aeussere Fruehlingstrasse 45 D-94315 Straubing Germany Contact person: Mr. Johann Roidt Communication: Telephone (+49) 0 94 21 / 55 22-0 Fax (+49) 0 94 21 / 55 22-99 eMail: [email protected] FCC registration number: 90926 Industry Canada file number: IC 3050 EMV-Prüfzentrum EMI/EMC-Testcenter FCC-ID: AZPT4YBF-72 Test Report No. 55503-20364 Page 5 of 55 Pages 3. Summary of Test Results The tested sample complies with the requirements for set forth in the The Code of Federal Regulations 47, Part 95, Subpart C & E and The Code of Federal Regulations 47 Part 2, Subpart J. of the Federal Communication Commission (FCC). Johann Roidt Thomas Eberl Technical Manager Test Engineer EMV-Prüfzentrum EMI/EMC-Testcenter FCC-ID: AZPT4YBF-72 Test Report No. 55503-20364 Page 6 of 55 Pages 4. Operation Mode of EUT • transmitting continuously 1 • with accu pack supply nominal 9.6 V DC) 2 • antenna extended to maximum 3 • operating with f = 72.550 MHz For conducted measurements a dummy load was used as delivered by applicant. A short description of the circuit and the method to stop modulation can be found in the following figure. 1 Modulation as indicated on appropriate test record 2 For conducted measurements replaced by external DC supply 3 For radiated emissions only EMV-Prüfzentrum EMI/EMC-Testcenter FCC-ID: AZPT4YBF-72 Test Report No. 55503-20364 Page 7 of 55 Pages 5. Configuration of EUT and Peripheral Devices EUT is configured as stand-alone device Configuration of cables of EUT Not applicable Configuration of peripheral devices connected to EUT Not applicable EMV-Prüfzentrum EMI/EMC-Testcenter FCC-ID: AZPT4YBF-72 Test Report No. 55503-20364 Page 8 of 55 Pages 6. Measuring Methods 6.1. Maximum Transmitter Power (§95.639) The maximum transmitter power was measured conducted and radiated. 6.1.1. Conducted Maximum Transmitter Power A spectrum analyzer / EMI test receiver was connected to the output of the transmitter power amplifier (conducted measurement) via dummy load while EUT was operating in transmit mode using the assigned frequency. The trace mode of the spectrum analyzer was set to max hold with: RBW = 100 kHz, VBW = 100 kHz, span = 1 MHz, sweep = 20 ms (auto mode) See figure 1 for the measurement setup. Test equipment used (see equipment list for details): 02, 18, 51, 69, 70, 71 5 8 3 1 6 4 7 2 Figure 1: Measurement setup for testing on antenna connector 1 Transmitter (EUT) 5 Test cable 2 Dummy load 6 DC-block 3 Wooden table 7 Attenuator 4 DC power supply 8 Spectrum analyzer EMV-Prüfzentrum EMI/EMC-Testcenter FCC-ID: AZPT4YBF-72 Test Report No. 55503-20364 Page 9 of 55 Pages 6.1.2. Radiated Maximum Transmi…

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

FCC-ID: AZPT4YBF-72Test Report No. 55503-20364 Page 15 of 55 Pages 7.Photographs of Test Setups Test setup unwanted radiation 30 MHz - 1 GHz EMV-Pr ̧fzentrum EMI/EMC-Testcenter FCC-ID: AZPT4YBF-72Test Report No. 55503-20364 Page 16 of 55 Pages Test setup unwanted radiation 30 MHz - 1 GHz (continued) EMV-Pr ̧fzentrum EMI/EMC-Testcenter