DRAKE ALT72 Instruction Manual

Assistive listening system

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ALT 72 Assistive Listening System
Contains an ALT 72 Assistive Listening Transmitter
and 2 Model MR306 FM Receivers
Instruction Manual
TM
Creating Sound Solutions for Easy Listening

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Summary of Contents for DRAKE ALT72

  • Page 1 ® ALT 72 Assistive Listening System Contains an ALT 72 Assistive Listening Transmitter and 2 Model MR306 FM Receivers Instruction Manual Creating Sound Solutions for Easy Listening...
  • Page 2 Caution Statements WARNING: TO PREVENT FIRE OR A product and cart combination should be moved ELECTRICAL SHOCK DO NOT with care. Quick stops, excessive force and EXPOSE TO RAIN OR MOISTURE uneven surfaces may cause the product and cart combination to overturn. The lightning flash with arrow head symbol, within CAUTION an equilateral triangle, is intended to alert the user...
  • Page 3 Important Safety Instructions 1. Read Instructions—All the safety and operating instructions should be read 14. Outdoor Antenna Grounding—If an outside antenna or cable system is before the product is operated. connected to the product, be sure the antenna or cable system is grounded so 2.
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  • Page 5: Table Of Contents

    Table of Contents Also included with the system are (3) three ALT 72 Thank you for purchasing an ALT 72 Assistive Listening System. This product has been designed and manufac- Assistive Listening System decals. These decals can tured to high quality standards, and will provide reliable be posted to inform people that a facility is equipped operation for many years.
  • Page 6: Specifications / Options And Accessories

    Specifications / Options and Accessories Frequency Response: 20 Hz to 15 kHz, ±1 dB SPECIFICATIONS: referenced to a standard 75 Sec. pre-emphasis curve. Frequency Coverage: 72.1 to 72.9 MHz, 74.7 MHz, and 75.3 to 75.9 MHz. Ultimate S/N Ratio: Greater than 60 dB, monaural. (with Drake Model MR306 Frequency Selection: Selectable by front panel...
  • Page 7: Introduction - General Description

    Introduction - General Description The ALT 72 is a wideband FM Listening System which The Assistive Listening System has two principal parts: operates in the 72 - 76 MHz frequency band. Designed the ALT 72 Assistive Listening Transmitter, and the for hearing assistance in places of public access, the MR306 FM Receivers.
  • Page 8: Front Panel Controls And Indicators

    Front Panel Controls and Indicators ALT 72 ASSISTIVE LISTENING TRANSMITTER INPUT LEVEL MODULATION LIMITING/ CHANNEL POWER COMPRESSION OFF L C+L 1. INPUT LEVEL CONTROL - This control is used to “C+L” - For audio sources that contain relatively low adjust input sensitivity. It should be set at or just below audio levels combined with relatively high audio levels the point where the modulation indicator lights on audio as might be encountered when the audio output from a...
  • Page 9: Rear Panel Controls And Connections

    Rear Panel Controls and Connections 1. DC INPUT - Connect the supplied AC adapter to this connector. Plug the AC Adapter into a source of nominal 120 VAC, 60 Hz power 2. POWER ON/OFF - Set this switch to the "ON" position to operate the ALT 72.
  • Page 10: Installation

    Installation SETUP and OPERATION If the optional magnetic-mount antenna is more appropriate, contact your dealer or the R.L. Drake Locating the ALT 72 Company. The magnetic-mount antenna installation Prior to connection and adjustments, decide on a and placement is detailed on page 5 of this manual. location for the ALT 72 that will provide a reliable signal to the receivers throughout the intended listening area.
  • Page 11 Installation, continued AC Adapter Switch to 'ON' 3. Connect the Transmitter to Power Plug the DC power cord of the supplied AC Adapter into the DC INPUT connector on the rear panel of the ALT 72 ASSISTIVE LISTENING TRANSMITTER ALT 72 unit. Plug the AC Adapter into a nominal INPUT LEVEL MODULATION LIMITING/...
  • Page 12: Operating The Mr306 Receiver

    Operating the MR306 Receiver 1. Phone Jack 2. Power ON/OFF Switch 3. Volume Control 4. FM MONO Stereo Switch 5. Key LOCK Switch LOCK PRESET 6. TUNING Buttons 7. Memory Indicator 8. Key Lock Indicator digital 9. FM Stereo Indicator receiver 10.
  • Page 13 Operating the MR306 Receiver, continued PRESET TUNING SUGGESTIONS FOR RECEIVER MANAGEMENT Once the desired frequencies are stored in the preset Different types of facilities will use varied approaches buttons (13), they can easily be recalled. for receiver management and earphone sanitation. The following includes some options that customers have To store a station into memory, use the following used successfully:...
  • Page 14: Service Information / If You Need To Call For Help

    Service Information / If You Need To Call For Help NOTE: Soon our area code will change from (513) to (937). If problems are experienced when dialing us, please try the (937) area code. We look forward to serving you soon. SERVICE INFORMATION Should you want to return your unit for service, package You may contact the R.L.
  • Page 15: Warranty

    Warranty Three Three Three Y Y Y Y Y ear Limited ear Limited ear Limited ear Limited W W W W W arranty arranty arranty Three Three ear Limited arranty arranty R. L. DRAKE COMPANY warrants to the original purchaser this product shall be free from defects in material or workmanship for three (3) years from the date of original purchase.
  • Page 16 ® R.L. DRAKE COMPANY 230 INDUSTRIAL DRIVE FRANKLIN, OHIO 45005 U.S A. CUSTOMER SERVICE AND PARTS TELEPHONE: +1 (513) 746-6990 TELEFAX: +1 (513) 743-4576 WORLD WIDE WEB SITE: http://www.rldrake.com NOTE: Soon our area code will change from (513) to (937). If problems are experienced when dialing us, please try the (937) area code.

This manual is also suitable for:

Mr306

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