B5DM529UHF Audio Base Station

Telex Op er ating In struc tions RadioCom ™ BTR-800, TR-800, TR-825 Pro fes sional Wire less In ter com Sys tem 0891 Thank you for choos ing RadioCom TM Telex Com mu ni ca tions would like to take this op por tu nity to thank you for choos ing the RadioCom™ BTR-800 Pro fes sional Wire less In ter com Sys tem. Many of the fea tures in this prod uct are the re sult of years of de vel op -- ment work with many of the fea tures de vel oped from cus tomer feed back. We hope that your ex pe ri ence with this prod uct is a pleas ant one and hope to pro vide you with a con tin u ing line of RadioCom™ prod ucts well into the fu ture. In or der to get the most out of your new wire less in ter com sys tem, please take a few mo ments to look through this book let be fore us ing the prod uct for the first time. -Telex Com mu ni ca tions, Inc. Ta ble of Con tents In tro duc tion..........................................................................1-1 Gen eral De scrip tion..........................................................................1-1 Sys tem Fea tures.............................................................................1-1 BTR-800 Block Di a gram......................................................................1-2 BTR-800 Base Sta tion..................................................................2-1 Con trols and Con nec tions - Front Panel..........................................................2-1 Con trols and Con nec tions - Rear Panel...........................................................2-2 BTR-800 Spec i fi ca tions.......................................................................2-3 TR-800 Beltpack.......................................................................3-1 Con trols and Con nec tions - Top Panel............................................................3-1 Con trols and Con nec tions - Rear Panel...........................................................3-2 TR-800 Spec i fi ca tions........................................................................3-3 TR-825 Beltpack......................................................................4-1 Con trols and Con nec tions - Top Panel............................................................4-1 Con trols and Con nec tions - Rear Panel...........................................................4-2 TR-825 Spec i fi ca tions........................................................................4-3 Ini tial Equip ment Set-Up...............................................................5-1 Un packing.................................................................................5-1 An tenna Con nec tions.........................................................................5-2 An tenna Po lar iza tion.........................................................................5-2 Dis tance Be tween An tennas...................................................................5-2 An tenna Place ment..........................................................................5-2 Im proving Re cep tion/In creasing Range..........................................................5-4 Base Sta tion Set-Up.........................................................................5-5 Lo ca tion...............................................................................5-5 Power Con nec tion........................................................................5-5 Trans mit Switches........................................................................5-5 In ter nal Trans mit Switches.................................................................5-6 In ter com Switch.........................................................................5-6 In ter com In ter face........................................................................5-6 Dual Lis ten Func tion al ity..................................................................5-8 Aux il iary In put/Out put....................................................................5-9 In ter nal Aux il iary In put Routing Switch......................................................5-9 Stage An nounce /Re lay Con tacts...........................................................5-10 Base Sta tion Link .......................................................................5-11 Beltpack Set-Up...........................................................................5-12 Bat tery In stal la tion......................................................................5-12 An tenna Con nec tion.....................................................................5-13 Trans mit Mode.........................................................................5-13 Head set Con nec tion.....................................................................5-13 Pre-Walk-Thru Check list...............................................................6-1 Sys tem Op er a tion......................................................................7-1 Fre quency Plan Over view.....................................................................7-1 Fac tory-Defined Group.......................................................................7-1 User-Programmable Groups...................................................................7-1 Sys tem Quick Start..........................................................................7-1 Base Sta tion Op er a tion......................................................................7-2 Power.................................................................................7-2 Lo cal Head set...........................................................................7-2 Por ta ble Sta tion Con nect..................................................................7-2 In ter com A and B........................................................................7-2 Aux il iary...............................................................................7-2 Dis play Con trast.........................................................................7-3 B…

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Federal Communications Commission April 23, 2007 Office of Engineering and Technology Equipment Authorization Division 7345 Oakland Mills Road Columbia, Maryland 21046 Subject: Permanent Confidentiality request for FCC ID: B5DM529 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 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

FCC ID: B5DM529 Flom Test Labs p0730011, d0740057 3356 N. San Marcos Place, Suite 107 Chandler, Arizona 85225-7176 (866) 311-3268 phone, (480) 926-3598 fax Date: April 26, 2007 Applicant: 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] Equipment: BTR-800 FCC ID: B5DM529 FCC Rules: Radiofrequency Radiation Exposure Limits 47 CFR 1.1310 MPE - Mobiles X Fixed Based Station Gentlemen: Enclosed please find your copy of the Supplemental Test Data Report, the whole for Environmental Assessment (MPE) of the referenced equipment as shown. Please allow from 8-12 weeks to hear from the Commission, who may request additional data or information, and even a sample for pre-grant audit testing. 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, Lab Director enclosure(s) HSB/je FCC ID: B5DM529 Flom Test Labs p0730011, d0740057 3356 N. San Marcos Place, Suite 107 Chandler, Arizona 85225-7176 (866) 311-3268 phone, (480) 926-3598 fax Date: April 26, 2007 Federal Communications Commission Via: Electronic Filing Attention: Authorization & Evaluation Division Applicant: Telex Communications, Inc. Equipment: BTR-800 FCC ID: B5DM529 FCC Rules: Radiofrequency Radiation Exposure Limits 47 CFR 1.1310 MPE - Mobiles X 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, Lab Director enclosure(s) cc: Applicant HSB/je FCC ID: B5DM529 Flom Test Labs p0730011, d0740057 3356 N. San Marcos Place, Suite 107 Chandler, Arizona 85225-7176 (866) 311-3268 phone, (480) 926-3598 fax Environmental Assessment for Mobiles/Fixed Base Station for FCC ID: FCC ID: B5DM529 Model:BTR-800 to Federal Communications Commission 47 CFR 1.1310 (MPE) Radiofrequency Radiation Exposure Limits Date Of Report: April 26, 2007 On the Behalf of the Applicant: Telex Communications, Inc. At the Request of: 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, Lab Director Flom Test Labs p0730011, d0740057 3356 N. San Marcos Place, Suite 107 Chandler, Arizona 85225-7176 (866) 311-3268 phone, (480) 926-3598 fax Table of Contents Rule Description Page . Test Report 1 . Identification of the Equipment Under Test 2 . Standard Test Conditions and Engineering Practices 3 1.1310 Environmental Assessment 4 Flom Test Labs p0730011, d0740057 3356 N. San Marcos Place, Suite 107 Page 1 of 5 Chandler, Arizona 85225-7176 (866) 311-3268 phone, (480) 926-3598 fax Required information per ISO 17025-1995: a) Test Report (Supplemental) b) Laboratory: (FCC: 31040/SIT) (Canada: IC 2044) Flom Test Labs 3356 N. San Marcos Place, Suite 107 Chandler, AZ 85225 c) Report Number: d0740057 d) Client: Telex Communications, Inc. 8601 E. Cornhusker Highway P.O. Box 5579 Lincoln, NE 68505-5579 e) Identification: BTR-800 FCC ID: B5DM529 Description: UHF Base Station f) EUT Condition: Not required unless specified in individual tests. g) Report Date: April 26, 2007 EUT Received: h, j, k): As indicated in individual tests. i) Sampling method: No sampling procedure used. l) Uncertainty: In accordance with MFA internal quality manual. m) Supervised by: Hoosamuddin S. Bandukwala, Lab Director 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 p0730011, d0740057 3356 N. San Marcos Place, Suite 107 Page 2 of 5 Chandler, Arizona 85225-7176 (866) 311-3268 phone, (480) 926-3598 fax 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: B5DM529 Model Number: BTR-800 Description: UHF Base Station Type of Emission: 82K5F3E Frequency Range, MHz: 482 to 518 Power Rating, Watts: 0.1 x Switchable Variable N/A Modulation: AMPS TDMA CDMA X OTHER Antenna: Helical X 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 p0730011, d0740057 3356 N. San Marcos Place, Suite 107 Page 3 of 5 Chandler, Arizona 85225-7176 (866) 311-3268 phone, (480) 926-3598 fax Standard Test Conditions and Engineering Practices A2LA “A2LA has accredited Flom Test Labs, 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 17025:2005 ‘General Requirements for the Competence of Testing and Calibration Laboratories’ and any additional program requirements in the identified field of testing.” Please refer to www.a2la.org for current scope of accreditation. Certificate Number: 2152.01 Flom Test Labs p0730011, d0740057 3356 N. San Marcos Place, Suite 107 Page 4 of 5 Chandler, Arizona 85225-7176 (866) 311-3268 phone, (480) 926-3598 fax 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: None Measure…

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Flom Test Labs 3356 North San Marcos Place, Suite 107 Chandler, Arizona 85225-7176 FCC ID: B5DM529 (866) 311-3268 phone, (480) 926-3598 fax MFA p0730011, d0740037 Date: April 23, 2007 Applicant: 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] Equipment: BTR-800 FCC ID: B5DM529 FCC Rules: 74(H) 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, Lab Director enclosure(s) HSB/je Flom Test Labs 3356 North San Marcos Place, Suite 107 Chandler, Arizona 85225-7176 FCC ID: B5DM529 (866) 311-3268 phone, (480) 926-3598 fax MFA p0730011, d0740037 Date: April 23, 2007 Applicant: 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] Equipment: BTR-800 FCC ID: B5DM529 FCC Rules: 74(H) Gentlemen: Enclosed please find your copies of the Application Form, covering letter to the FCC and Engineering Test Report, the whole for approval of the reference equipment as indicated. Please allow from 8-12 weeks to hear from the Commission, who may request additional data or information, and even a sample for pre-grant audit testing. In the meantime, you are subject to the restrictions as listed on the attached summary. If your equipment is still retained by us, it will be returned to you as soon as 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, Lab Director enclosure(s) HSB/je Flom Test Labs 3356 North San Marcos Place, Suite 107 Chandler, Arizona 85225-7176 FCC ID: B5DM529 (866) 311-3268 phone, (480) 926-3598 fax MFA p0730011, d0740037 Memo Date: April 23, 2007 Applicant: Telex Communications, Inc. 8601 E. Cornhusker Highway P.O. Box 5579 Lincoln, NE 68505-5579 Equipment: BTR-800 FCC ID: B5DM529 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, Lab Director Flom Test Labs 3356 North San Marcos Place, Suite 107 Chandler, Arizona 85225-7176 FCC ID: B5DM529 (866) 311-3268 phone, (480) 926-3598 fax MFA p0730011, d0740037 Summary of Restrictions 1. All submissions to the FCC are subject to their Examiner's interpretation. 2. Please allow from 60 to 90 days before hearing from the FCC with regard to any submission. 3. The FCC can set aside any action; modify or set aside any action, within 30 days. (FCC Rule 1.108, 1.113). 4. Under Rule 2.803, if device is not type accepted/certificated then it must not be sold, leased, offered for sale, imported, shipped or distributed or advertised for sale. 5. FCC can revoke its certificates at any time if the equipment does not meet or continue to meet their Rules. (Rule Parts 2.927, 2.939). 6. FCC can request a sample at any time (2.936). M. Flom Associates, Inc. Hoosamuddin S. Bandukwala, Lab Director Flom Test Labs 3356 North San Marcos Place, Suite 107 Chandler, Arizona 85225-7176 FCC ID: B5DM529 (866) 311-3268 phone, (480) 926-3598 fax MFA p0730011, d0740037 Date: April 23, 2007 Federal Communications Commission Via: Electronic Filing Attention: Authorization & Evaluation Division Applicant: Telex Communications, Inc. Equipment: BTR-800 FCC ID: B5DM529 FCC Rules: 74(H) 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. 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, Lab Director enclosure(s) cc: Applicant HSB/je Flom Test Labs 3356 North San Marcos Place, Suite 107 Chandler, Arizona 85225-7176 FCC ID: B5DM529 (866) 311-3268 phone, (480) 926-3598 fax MFA p0730011, d0740037 Transmitter Certification of FCC ID: B5DM529 Model: BTR-800 to Federal Communications Commission Rule Part(s) 74(H) Date of report: April 23, 2007 On the Behalf of the Applicant: Telex Communications, Inc. At the Request of: Telex Communications, Inc. 8601 E. Cornhusker Highway P.O. Box 5…

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Test Setup Photos