B5DM518Wireless Intercom Beltpack

Telex Model TR-800 Beltpack Users/Owners Manual (Preliminary Information) General Description: The Telex Model TR-800 Beltpack Transmitter/Receiver is a component of the BTR-800 Wireless Intercom System. The TR-800 is intended for use as a belt worn wireless mobile intercom radio for use in a professional installation such as television or cinema production. Each BTR-800 base station can be used with one to four TR-800 units per base station. The TR-800 operates within the 470 to 608 and 614 to 746 MHz range. (TV Channels 14-36 and 38-59). The TR-800 transmitter operates on a single frequency within the above range and the receivers operate on a single frequency contained within an 18 MHz wide section of the above frequency range. Typical transmitter conducted output Power is 50 mW. The TR-800 transmit power is automatically reduced when the unit is close-in to the base station to aid in intermodulation reduction and unnecessary transmit power. Operating frequencies can be selected from pre-set groups or the user can select special operating frequencies within 18 MHz wide allotments. The talk button on the top panel can be switch selected to operate in the Push-to-Talk mode or the Push-to-Transmit mode. Push-to-Transmit allows multiple TR-800 units to function as simplex units on one of the BTR-800 channels. The microphone gain control, along with the LCD Display, talk function switch and frequency/group controls are located on the back panel. The ON/OFF/Volume Control, Talk Button, Low Battery, Modulation Indicator and the Talk Light are located on the top panel. The Channel Select, Wireless Talk Around (WTA) and Stage Announce (SA) buttons with their indicators are also on the top panel. Transmit and Receive antennas are attached to the TR-800. Either or both antennas can be unscrewed for field replacement but are not coaxial connectors. The TR-800 beltpack can be powered by AA Alkaline or a Nickel-Metal Hydride Battery pack. TR-800 Users/Owners Manual Page 2 TR-800 Controls / Operation 1. I/C On/Off Volume Knob Operation: Knob turns beltpack on and controls volume of unit. 2. WTA (Wireless Talk Around) Button Operation: Press to send audio to transmitter. Sends audio to currently selected I/C channel. Nearby LED activates when WTA button pressed. 3. SA (Stage Announce) Button Operation: Press to send audio to transmitter. Nearby LED activates when SA button pressed. 4. I/C Channel Button Operation: Press to select the I/C channel in which to send and receive audio. 5. BAT/OM Operation: Activated when battery voltage drops below 6.5V or audio limiter is activated. 6. Talk LED Operation: Activated when talk button pressed. Also activated if WTA or SA button pressed. 7. Talk Button Operation: Press to send audio to transmitter. TR-800 Users/Owners Manual Page 3 Specifications: Input Power.......................................9.0 VDC Alkaline or NiMH. Antennas..........................................Attached. Channels.....................Two, one receive, one transmit, frequency agile, 25 KHz steps, within 18MHz wide allotments. Frequency Range.................................470-608 and 614-746 MHz. (within 18MHz wide allotments). Transmitter: RF Power Output..............................................50 mW typical. Frequency Deviation..........................................+/- 40 KHz Peak. Audio Frequency Response...................................300 Hz to 8 KHz. Microphone input level..........................8 mV for 40 KHz Deviation. Receiver: Sensitivity..........0.8 uV typical, 1.0 uV maximum for 12 dB SINAD. Squelch.............................................Opens at 20 dB SINAD. Modulation Acceptance...................................40 KHz Nominal. Audio Frequency Response...................................300 Hz to 8 KHz. Audio Output (headset).................................40 mW, 600 Ohms (1% Distortion). END

Telex Communications, Inc. 8601 E. Cornhusker Hwy Lincoln, NE 68507 402-467-5321 Date: September 26, 2002 To: Federal Communications Commission EQUIPMENT APPROVAL SERVICES P.O. Box 358315 Pittsburgh, PA 15251-5315 To: INDUSTRY CANADA Certification & Engineering Bureau 3701 Carling Avenue, Bldg. 94 P.O. Box 11490, Station “H” Ottawa, Ontario, Canada K2H 8S2 Per: 47 CFR 0.457 and 0.459 Re: FCC ID: B5DM518 Model: TR-800 Pursuant to Sections 0.457 (d) (1) (ii) and 0.459 of the Commission’s Rules, the applicant hereby requests confidential treatment of some of the information accompanying this application as listed below, i.e. Block Diagram, Schematics, Parts Lists, List of Active Devices, Tune-up Procedures (alignment procedure), Operational Description (theory of operation). These materials contain trade secrets and proprietary information not customarily released to the public and the public disclosure of these matters might be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that pursuant to Rule 0.457 (d) (1) (ii) disclosure of this application and all accompanying documentation will not be made before the date of the grant of this application. Sincerely, Charles E. Conner Senior Project Engineer Telex Communications, Inc.

FCC ID: B5DM518 MFA p02c0007, d0310045 T R A N S M I T T E R C E R T I F I C A T I O N of FCC ID: B5DM518 MODEL: TR-800 to FEDERAL COMMUNICATIONS COMMISSION Rule Parts 74 H, 74.861, Confidentiality DATE OF REPORT: January 29, 2003 ON THE BEHALF OF THE APPLICANT: Telex Communications, Inc. AT THE REQUEST OF : P.O. 269063 Telex Communications, Inc. 8601 E. Cornhusker Highway P.O. Box 5579 Lincoln, NE 68505-5579 Attention of: Jim Andersen, Pro Audio Engineering (402) 467-5321; FAX: -3279 email: [email protected] SUPERVISED BY: Morton Flom, P. Eng. FCC ID: B5DM518 MFA p02c0007, d0310045 THE APPLICANT HAS BEEN CAUTIONED AS TO THE FOLLOWING: 15.21 INFORMATION TO USER. The users manual or instruction manual for an intentional radiator shall caution the user that changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. 15.27(a) SPECIAL ACCESSORIES. Equipment marketed to a consumer must be capable of complying with the necessary regulations in the configuration in which the equipment is marketed. Where special accessories, such as shielded cables and/or special connectors are required to enable an unintentional or intentional radiator to comply with the emission limits in this part, the equipment must be marketed with, i.e. shipped and sold with, those special accessories. However, in lieu of shipping or packaging the special accessories with the unintentional or intentional radiator, the responsible party may employ other methods of ensuring that the special accessories are provided to the consumer, without additional charge. Information detailing any alternative method used to supply the special accessories for a grant of equipment authorization or retained in the verification records, as appropriate. The party responsible for the equipment, as detailed in § 2.909 of this chapter, shall ensure that these special accessories are provided with the equipment. The instruction manual for such devices shall include appropriate instructions on the first page of text concerned with the installation of the device that these special accessories must be used with the device. It is the responsibility of the user to use the needed special accessories supplied with the equipment. FCC ID: B5DM518 MFA p02c0007, d0310045 TABLE OF CONTENTS RULE DESCRIPTION PAGE . Test Report 1 2.1033(c) General Information Required 2 2.1033(c)(14) Rule Summary 5 . Standard Test Conditions and Engineering Practices 6 2.1046(a) Carrier Output Power (Conducted) 7 2.1046(a) ERP Carrier Power (Radiated) 9 2.1051 Unwanted Emissions (Transmitter Conducted) 10 2.1053(a) Field Strength of Spurious Radiation 13 2.1049(c)(1) Emission Masks (Occupied Bandwidth) 17 2.1047(a) Audio Frequency Response 25 2.1047(b) Modulation Limiting 27 2.1055(a)(1) Frequency Stability (Temperature Variation) 29 2.1055(b)(1) Frequency Stability (Voltage Variation) 32 2.202(g) Necessary Bandwidth and Emission Bandwidth 33 FCC ID: B5DM518 MFA p02c0007, d0310045 PAGE NO. 1 of 33. Required information per ISO/IEC Guide 25-1990, paragraph 13.2: a) TEST REPORT 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: d0310045 d) Client: Telex Communications, Inc. 8601 E. Cornhusker Highway P.O. Box 5579 Lincoln, NE 68505-5579 e) Identification: TR-800 FCC ID: B5DM518 EUT Description: Wireless Intercom Beltpack f) EUT Condition: Not required unless specified in individual tests. g) Report Date: January 29, 2003 EUT Received: December 16, 2002 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: Morton Flom, P. Eng. 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. FCC ID: B5DM518 MFA p02c0007, d0310045 PAGE NO. 2 of 33. LIST OF GENERAL INFORMATION REQUIRED FOR CERTIFICATION IN ACCORDANCE WITH FCC RULES AND REGULATIONS, VOLUME II, PART 2 AND TO 74 H, 74.861, Confidentiality Sub-part 2.1033 (c)(1): NAME AND ADDRESS OF APPLICANT: Telex Communications, Inc. 8601 E. Cornhusker Highway P.O. Box 5579 Lincoln, NE 68505-5579 MANUFACTURER: Telex Communications, Inc. (c)(2): FCC ID: B5DM518 MODEL NO: TR-800 (c)(3): INSTRUCTION MANUAL(S): PLEASE SEE ATTACHED EXHIBITS (c)(4): TYPE OF EMISSION: 83K0F3E (c)(5): FREQUENCY RANGE, MHz : 470 to 608 614 to 746 (c)(6): POWER RATING, Watts: 0.050 x Switchable Variable N/A (c)(7): MAXIMUM POWER RATING, Watts: 0.250 DUT RESULTS: Passes x Fails FCC ID: B5DM518 MFA p02c0007, d0310045 PAGE NO. 3 of 33. M. Flom Associates, Inc. is accredited by the American Association for Laboratory Association (A2LA) as shown in the scope below. "This laboratory is accredited by the American Association for Laboratory Accreditation (A2LA) and the results shown in this report have been determined in accordance with the laboratory's terms of accreditation unless stated otherwise in the report." Should this report contain any data for tests for which we are not accredited, or which have been undertaken by a subcontractor that is not A2LA accredited, such data would not covered by this laboratory's A2LA accreditation. FCC ID: B5DM518 MFA p02c0007, d0310045 PAGE NO. 4 of 33. Subpart 2.1033 (continued) (c)(8): VOLTAGES & CURRENTS IN ALL ELEMENTS IN FINAL R. F. STAGE, INCLUDING FINAL TRANSISTOR OR SOLID STATE DEVICE: COLLECTOR CURRENT, A = per manual COLLECTOR VOLTAGE, Vdc = per manual SUPPLY VOLTAGE, Vdc = 9.0 (c)(9): TUNE-UP PROCEDURE: PLEASE SEE ATTACHED EXHIBITS (c)(10): CIRCUIT DIAGRAM/CIRCUIT DESCRIPTION: Including description of circuitry & devices provided for determining and stabilizing frequency, for suppression of spurious radiation, for limiting modulation and limiting power. PLEASE SEE ATTACHED EXHIBITS (c)(…

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