B5DH221HANDHELD MICROPHONE TRANSMITTER

Preliminary Users Manual Electro-Voice Model REV-H Handheld Wireless Microphone Transmitter The Electro-Voice (Ev) REV-H is a Professional Grade Wireless Handheld Transmitter operating in the UHF frequency range. The REV-H combines frequency agility and ease of use like no other. The transmitter operates within a 24 MHz wide segment in 25 KHz steps. The high quality audio circuitry and advanced Radio Frequency (RF) signal processing offer broadcast quality signal-to-noise and audio clarity. System features include: • Durable Painted Metal Handle. • Screw-on microphone elements for changeability. • Permanent Flash Memory for frequency/setting storage. • On-Loc prevents accidental power off (when set). • LCD Display for ease of viewing. • Internal top loaded monopole Antenna. Quick set-up: 1. With the Power Switch on the transmitter OFF, install fresh batteries into the transmitter. 2. To prevent feedback or unintentional noise, mute the audio mixer/amplifier or other device during set-up adjustments. Place the transmitter Power Switch to the ON position. 3. The operating screen (display) light will come on momentarily. The display will current frequency group and channel and the battery level. Note: Anytime Power is removed and turned back on, the GP/CH/Bat screen will be displayed. REV-H Users Manual Page 2 Quick set cont’d. 4. The screen will stop at the GP (Group) and CH (Channel) screen. If the Group and Channel match the desired receiver group and channel, Proceed to Step 9. If not, proceed to Step 5. 5. To select a different GP/CH, press SET one time. The Group will start flashing. Use the up and down arrows to change the group number. Press the SET button to save the Group. After setting the Group, The Channel number will start flashing . Use the up/down arrows to change the Channel number. Press SET and the channel is now saved. There are 10 Groups and up to 16 Channels (preferred groups/channels) stored in memory. If desired, you can create new groups/ channels but you must change to a new frequency to store in that group/channel. In order to select a new frequency, you must have a “users” group /channel selected. Press the SET button. The Group should be flashing. Press the Up arrow until a group ending with u is found (any u group can be used) Press SET. The Channel should now be flashing. Select a channel with the up/down arrow. Press SET. You are now ready to select a frequency to store in the users group above. Press and hold the set and down arrows at the same time for 3 seconds and release to go to the next screen function. 8. The next screen displays the operating frequency of the group/channel. If there is no frequency currently stored in the selected users group/channel, a dashed line will be shown. Press SET. The dashed line or frequency will start flashing. Press the up arrow one step at a time to find the desired frequency or hold down the up arrow to scroll through the frequencies quickly. The frequencies can be scrolled either way by the up/down buttons. When the desired frequency is showing, press SET. REV-H Users Manual Page 3 Quick set cont’d. 9. Press and hold the set and down arrows at the same time for 3 seconds and release to go to the next screen function. The next screen is the audio (microphone) level (attenuator) screen. Setting the level correctly depends on the microphone used and the person using the microphone. Setting the attenuator to “0”db is the same as setting a control to maximum gain. Setting the attenuator to –42 db is the same as setting a control to minimum gain. Each step of the attenuator equals 3 db. Setting the attenuator for the maximum Audio Meter reading on the receiver without peak distortion will produce the best signal to noise ratio. 10. The next screen is RF Power. The Transmit Power (RF) is shipped set to “Lo” for use with multiple frequency systems and the best battery life. “Hi power can be selected for longer distances or to suppress noise or interference. The nominal power in Hi is 50 milliwatts. 11. When power off is required, simply place the power Off-On switch in the OFF position. The display will then delay slightly to allow the receiver to shut down quietly. REV-H Specifications: Page 4 RF Frequency range........................614.0 to 746.0 MHz. RF Channel Step................................ 25 KHz RF Power....................................Norm, 5 mW, High, 50 mW. Modulation..................................FM, 40 KHz nominal. Audio Frequency Response...............80-15000 Hz +/- 2 dB. Audio attenuator Range....................42 dB. Microphones, Electret or Dynamic...... Electret bias provided. Antenna......................................Top Loaded Monopole Battery Life (Alkaline)..................... 8-10 Hours Typical. Approval Information: The Telex/Ev REV-H Transmitter is Type Accepted under United States Federal Communications Commission Part 74. The Telex/Ev REV-HP Transmitter is Certified to Industry Canada RSS123 rules. Licensing of Telex/Ev equipment is the users responsibility and licensability depends upon the user’s classification, user’s application and frequency selected. Telex/Ev strongly urges the user to contact the appropriate telecommunications authority for any desired clarification. CAUTION: Any changes or modifications made to the above equipment could void the user’s authority to operate the equipment.

9-12-06 To: Mr. Jon Hartman, M Flom Associates Inc. In response to TCB request for justification that Telex/Ev transmitters are electrically identical throughout the requested frequency range. 1. It should first be noted that Telex Communications Inc. has shown responsibility for its products both to the FCC, M Flom Associates and to its customers by applying for and receiving many Grants over the years. 2. Further, Telex is well aware of its responsibilities and duties such as insuring that its products are made and tested to comply with FCC rules and regulations. 3. Documentation is submitted, as required with each application, showing all components and frequency ranges to be manufactured. These documents are copies of the exact documents that the products are made from. 4. The current applications for transmitter approvals over the frequency range of 614 to 746 MHz have included 3 transmitters for testing representative of that range, one at the low end of the range, one near mid- range and one at the high end of the range. Each transmitter can be set in 100 KHz increments to cover 24 MHz of the requested range. Telex feels that this adequately demonstrates the transmitter capability over the requested range. Moreover, as stated above, all components are clearly shown in the documentation and “identical to” should be evident. Trusting that the above statements are sufficient. Charles E. Conner Project Engineer Telex Communications Inc.

Federal Communications Commission September 14, 2006 Office of Engineering and Technology Equipment Authorization Division 7345 Oakland Mills Road Columbia, Maryland 21046 Subject: Permanent Confidentiality request for FCC ID: B5DH221 To whom it May Concern, Pursuant to sections 0.457 and 0.459 of CFR 47, the applicant requests permanent confidential treatment of the following information accompanying this application, as listed below. Block Diagrams Schematics Operational Description Parts List Tune up Procedures In accordance with the public notice DA-04-1705, dated June 15, 2004, we hereby request short term (45 days) confidentiality for the following items: Internal Photos External Photos Users Manual These materials contain trade secrets and proprietary information not customarily released to the public and the public disclosure of these materials might be harmful to the applicant and provide unjustified benefits to its competitors. Sincerely, Charles E. Conner Project Engineer Telex Communications Inc. 8601 E. Cornhusker Hwy Lincoln, NE 68507

Flom Test Labs 3356 N. San Marcos Place, Suite 107 Chandler, Arizona 85225-7176 FCC ID: B5DH221 (866) 311-3268 phone, (480) 926-3598 fax MFA p0650013, d0680040 Date: August 15, 2006 Federal Communications Commission Via: Electronic Filing Attention: Authorization & Evaluation Division Applicant: Telex Communications, Inc. Equipment: REV-H C1, C3, C5 FCC ID: B5DH221 FCC Rules: Radiofrequency Radiation Exposure Limits 47 CFR 1.1310 MPE - Mobiles Fixed Based Station Gentlemen: On behalf of the Applicant, enclosed please find the Supplemental Test Data Report, the whole for Environmental Assessment (MPE) of the referenced equipment as shown. We trust the same is in order. Should you need any further information, kindly contact the writer who is authorized to act as agent. Sincerely yours, Hoosamuddin S Bandukwala, Senior Test Engineer Flom Test Labs 3356 N. San Marcos Place, Suite 107 Chandler, Arizona 85225-7176 FCC ID: B5DH221 (866) 311-3268 phone, (480) 926-3598 fax MFA p0650013, d0680040 Environmental Assessment for Mobiles/Fixed Base Station for FCC ID: FCC ID: B5DH221 Model:REV-H C1, C3, C5 to Federal Communications Commission 47 CFR 1.1310 (MPE) Radiofrequency Radiation Exposure Limits Date Of Report: August 15, 2006 On the Behalf of the Applicant: Telex Communications, Inc. At the Request of: P.O. 346167 Telex Communications, Inc. 8601 E. Cornhusker Highway P.O. Box 5579 Lincoln, NE 68505-5579 Attention of: Charles E. Conner, Project Engineer (402) 467-5321; FAX: -3279 E-mail: [email protected] Jim Andersen Email: [email protected] Supervised By: Hoosamuddin S Bandukwala, Senior Test Engineer Flom Test Labs 3356 N. San Marcos Place, Suite 107 Chandler, Arizona 85225-7176 FCC ID: B5DH221 (866) 311-3268 phone, (480) 926-3598 fax MFA p0650013, d0680040 Table of Contents Rule Description Page . Test Report 2 . Identification of the Equipment Under Test 3 . Standard Test Conditions and Engineering Practices 4 1.1310 Environmental Assessment 5 Required information per ISO/IEC Guide 25-1990, paragraph 13.2: a) Test Report (Supplemental) b) Laboratory: (FCC: 31040/SIT) (Canada: IC 2044) M. Flom Associates, Inc. 3356 N. San Marcos Place, Suite 107 Chandler, AZ 85225 c) Report Number: d0680040 d) Client: Telex Communications, Inc. 8601 E. Cornhusker Highway P.O. Box 5579 Lincoln, NE 68505-5579 e) Identification: REV-H C1, C3, C5 FCC ID: B5DH221 Description: Handheld Microphone Transmitter f) EUT Condition: Not required unless specified in individual tests. g) Report Date: August 15, 2006 EUT Received: 2006-May-23 h, j, k): As indicated in individual tests. Flom Test Labs 3356 N. San Marcos Place, Suite 107 Page 2 of 7 Chandler, Arizona 85225-7176 FCC ID: B5DH221 (866) 311-3268 phone, (480) 926-3598 fax MFA p0650013, d0680040 i) Sampling method: No sampling procedure used. l) Uncertainty: In accordance with MFA internal quality manual. m) Supervised by: Hoosamuddin S Bandukwala, Senior Test Engineer n) Results: The results presented in this report relate only to the item tested. o) Reproduction: This report must not be reproduced, except in full, without written permission from this laboratory. Flom Test Labs 3356 N. San Marcos Place, Suite 107 Page 3 of 7 Chandler, Arizona 85225-7176 FCC ID: B5DH221 (866) 311-3268 phone, (480) 926-3598 fax MFA p0650013, d0680040 Identification of the Equipment Under Test (EUT) Name and Address of Applicant: Telex Communications, Inc. 8601 E. Cornhusker Highway P.O. Box 5579 Lincoln, NE 68505-5579 Manufacturer: Telex Communications, Inc. FCC ID: B5DH221 Model Number: REV-H C1, C3, C5 Description: Handheld Microphone Transmitter Type of Emission: Frequency Range, MHz: 614.1 to 6xx to 722 to 746.000 Power Rating, Watts: Switchable Variable N/A Modulation: AMPS TDMA CDMA OTHER Antenna: Helical Monopole Whip Other Note: For RF Safety test antenna gain taken at the upper range of expected gain (i.e. 0 dBd) and RF Power set to highest nominal power across all channels. Flom Test Labs 3356 N. San Marcos Place, Suite 107 Page 4 of 7 Chandler, Arizona 85225-7176 FCC ID: B5DH221 (866) 311-3268 phone, (480) 926-3598 fax MFA p0650013, d0680040 Standard Test Conditions and Engineering Practices Except as noted herein, the following conditions and procedures were observed during the testing: In accordance with ANSI C63.4-2003 Draft, section 6.1.9, and unless otherwise indicated in the specific measurement results, the ambient temperature of the actual EUT was maintained within the range of 10° to 40°C (50° to 104 °F) unless the particular equipment requirements specify testing over a different temperature range. Also, unless otherwise indicated, the humidity levels were in the range of 10% to 90% relative humidity. Prior to testing, the EUT was tuned up in accordance with the manufacturer's alignment procedures. All external gain controls were maintained at the position of maximum and/or optimum gain throughout the testing. Measurement results, unless otherwise noted, are worst-case measurements. A2LA “A2LA has accredited M. Flom Associates, Inc. Chandler, AZ for technical competence in the field of Electrical Testing. The accreditation covers the specific tests and types of tests listed on the agreed scope of accreditation. This laboratory meets the requirements of ISO/IEC 17025 – 1999 ‘General Requirements for the Competence of Testing and Calibration Laboratories’ and any additional program requirements in the identified field of testing.” Certificate Number: 2152-01 Flom Test Labs 3356 N. San Marcos Place, Suite 107 Page 5 of 7 Chandler, Arizona 85225-7176 FCC ID: B5DH221 (866) 311-3268 phone, (480) 926-3598 fax MFA p0650013, d0680040 Name of Test: Environmental Assessment Specification: FCC: 47 CFR 1.1310 Measurement Guide: ANSI/IEEE C95.1 1992 Test Equipment: Maximum Permissible Exposure (MPE) measurement system, consisting of: Narda 8717-1174R, Radiation meter Narda 8761D, E-field probe (300 kHz – 3 GHz) (Calibrated Nov-98) Measurement Procedure: 1. …

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For MFA internal use only Please keep this page with the report in out files. Applicant: Telex Communications, Inc. Model: REV-H C1, C3, C5 FCC ID: B5DH221 Formulaire: L:\\Project\\Formulaire\\FCC.Certification.General.rtf Last Modified: 1998-Sept-16 Purpose: FCC, Transmitter Certification for general "Business Band" transmitters. Including "Land Mobile" and "Fixed Radio" stations. MFA Project ID: p0650013 Client ID: TELEX MFA Document ID: d0680023 Date: August 7, 2006 This Printing 2006-Sep-12 Tue Writer: DEL/dm ___ < Check here if this report has been manually modified. ___ < Check here if this report was made from another report. Original document : ___ < Check here if this report varies significantly from the formulaire Flom Test Labs 3356 N. San Marcos Place, Suite 107 Chandler, Arizona 85225-7176 FCC ID: B5DH221 (866) 311-3268 phone, (480) 926-3598 fax MFA p0650013, d0680023 Date: August 7, 2006 Flom Test Labs 3356 N. San Marcos Place, Suite 107 Chandler, Arizona 85225-7176 (866) 311-3268 phone, (480) 926-3598 fax FCC ID: B5DH221 MFA p0650013, d0680023 Applicant: Telex Communications, Inc. 8601 E. Cornhusker Highway P.O. Box 5579 Lincoln, NE 68505-5579 Comment: Use this page for Type Approval or Class II Permissive Changes only. Attention of: Charles E. Conner, Project Engineer (402) 467-5321; FAX: -3279 E-mail: [email protected] Jim Andersen Email: [email protected] Equipment: REV-H C1, C3, C5 FCC ID: B5DH221 P.O. Number: 346167 FCC Rules: 74H Gentlemen: Enclosed please find your copy of the Engineering Test Report for which you are subject to the restrictions as listed on the attached summary. As you know, the FCC, after a TCB issues a Grant, still has 30 days to review a submission and request added information. It is your decision whether or not to market the equipment subject to a possible recall before the end of the 30 days. If your equipment is still retained by us, it will be returned to you 30 days after approval is achieved. Our invoice for services has been directed to your Accounts Payable Department. Should you need any clarification, just fax or phone. Thank you again for this order - it has been a pleasure to be of service. Sincerely yours, Hoosamuddin S Bandukwala, Senior Test Engineer Memo Date: August 7, 2006 Applicant: Telex Communications, Inc. 8601 E. Cornhusker Highway P.O. Box 5579 Lincoln, NE 68505-5579 Equipment: REV-H C1, C3, C5 FCC ID: B5DH221 Please note that the enclosed Reports reflect the results of tests performed to the currently published Federal Communications Commissions Rules and Regulations. Should the FCC's Examiners' interpretations request new and unpublished requirements, we will be pleased to provide them. We will invoice you accordingly, i.e. for the time spent on re-testing, providing the amended pages and/or Reports and for the time necessary to be spent on electronic filing. We will of course provide you with copies of any of the additions. We regret any added expense to the Applicants, but of late the FCC continues to change their requirements without any prior written publication and/or notices. As in the past, we will continue to provide all liaison with the FCC necessary for the successful conclusion of your project and the receipt of your Grant of Equipment Authorization. Sincerely yours, Hoosamuddin S Bandukwala, Senior Test Engineer Flom Test Labs 3356 N. San Marcos Place, Suite 107 Chandler, Arizona 85225-7176 (866) 311-3268 phone, (480) 926-3598 fax FCC ID: B5DH221 MFA p0650013, d0680023 Date: August 7, 2006 Federal Communications Commission Via: Electronic Filing Attention: Authorization & Evaluation Division Applicant: Telex Communications, Inc. Equipment: REV-H C1, C3, C5 FCC ID: B5DH221 FCC Rules: 74H Gentlemen: On behalf of the Applicant, enclosed please find Application Form 731, Engineering Test Report and all pertinent documentation, the whole for approval of the referenced equipment as shown. Filing fees are attached. We trust the same is in order. Should you need any further information, kindly contact the writer who is authorized to act as agent. Sincerely yours, Hoosamuddin S Bandukwala, Senior Test Engineer Flom Test Labs 3356 N. San Marcos Place, Suite 107 Chandler, Arizona 85225-7176 FCC ID: B5DH221 (866) 311-3268 phone, (480) 926-3598 fax MFA p0650013, d0680023 Transmitter Certification of FCC ID: B5DH221 Model: REV-H C1, C3, C5 to Federal Communications Commission Rule Part(s) 74H Date of report: August 7, 2006 On the Behalf of the Applicant: Telex Communications, Inc. At the Request of: P.O. 346167 Telex Communications, Inc. 8601 E. Cornhusker Highway P.O. Box 5579 Lincoln, NE 68505-5579 Attention of: Charles E. Conner, Project Engineer (402) 467-5321; FAX: -3279 E-mail: [email protected] Jim Andersen Email: [email protected] Supervised by: Hoosamuddin S Bandukwala, Senior Test Engineer Flom Test Labs 3356 N. San Marcos Place, Suite 107 Chandler, Arizona 85225-7176 (866) 311-3268 phone, (480) 926-3598 fax FCC ID: B5DH221 MFA p0650013, d0680023 Flom Test Labs 3356 N. San Marcos Place, Suite 107 Chandler, Arizona 85225-7176 FCC ID: B5DH221 (866) 311-3268 phone, (480) 926-3598 fax MFA p0650013, d0680023 List of Exhibits (FCC Certification (Transmitters) - Revised 9/28/98) Applicant: Telex Communications, Inc. FCC ID: B5DH221 By Applicant: 1. Letter of Authorization 2. Confidentiality Request: 0.457 And 0.459 3. Part 90.203(e) & (g) Attestation 4. Identification Drawings, 2.1033(c)(11) Label Location of Label Compliance Statement Location of Compliance Statement 5. Photographs, 2.1033(c)(12) 6. Documentation: 2.1033(c) (3) User Manual (9) Tune Up Info (10) Schematic Diagram (10) Circuit Description Block Diagram Parts List Active Devices 7. MPE Report By M.F.A. Inc.: A. Testimonial & Statement of Certification Flom Test Labs 3356 N. San Marcos Place, Suite 107 Chandler, Arizona 85225-7176 FCC ID: B5DH221 (866) 311-3268 phone, (480) 926-3598 fax MFA p0650013, d0680023 The Appli…

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