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Listen Technologies LR-300 User Manual

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  • Page 3 And should you have any comments on how we might improve our products or our service, we’re here to listen. 801.233.8992 800.330.0891 North America 801.233.8995 support@listentech.com www.listentech.com Thank you... and enjoy your listening experience! Best regards, The Listen Team...

  • Page 5: Table Of Contents

    Receivers Table of Contents LR-500 User’s Manual LR-500 Table of Contents LR-400 User’s Manual LR-400 Table of Contents LR-300 User’s Manual LR-300 Table of Contents Supplementary Information Channel Selection Listen SQ™ RF Reception Maximization Strategies 72 MHz Frequency Compatibility Table...

  • Page 9: Optional Accessories

    LR-500 Package Contents • LR-500 (72 MHz or 216 MHz) • Warranty Card • Receiver User Manual Optional Accessories See pages 81-82 Part Number 72 MHz: LR-500-072 216 MHz: LR-500-216...

  • Page 11: Lr-500 Table Of Contents

    LR-500 Table of Contents Architectural Specifications Specifications Quick Reference Setup Instructions Operation Instructions Programming Instructions Squelch Information Squelch Programming Charging Batteries Wall Transformer Operation Supplementary Information Channel Selection Listen SQ™ RF Reception Maximization Strategies 72 MHz Frequency Compatibility Table 216 MHz Frequency Compatibility Table Optional Accessories Troubleshooting Compliance Notice...

  • Page 13: Architectural Specifications

    80dB or greater. The receiver shall be programmable to electronically lock out unneeded channels. The receiver shall be capable of seeking channels. The device shall have an adjustable squelch. The device shall have an audio frequency response of 63 Hz to 15 KHz, ± 3dB at 72 MHz, or 63 Hz to 10 KHz, ±3dB at 216 MHz.
  • Page 14 LR-500 Specifications Set Up Controls User Controls Controls Programming LCD Display Indicators Battery Type Battery Life (Listen batteries) Battery Charging (NiMH only) Power Power Supply Connector Compliance Dimensions W x D x H Unit Weight Unit Weight with batteries Physical Shipping Weight Door Temperature - Operation...

  • Page 15: Quick Reference

    To exit PROGRAM, let unit sit idle for 5 seconds. LED: When lit, indicates On/Off and Volume control dial unit has power. www.listentech.com Adjustable Squelch: The default factory preset for squelch is 03.(See page 21 for Squelch programming information).
  • Page 16 LR-500 Quick Reference LR-500 Inside Access Door Battery Select Switch Battery Select Switch: Place in NiMH position ONLY if you are using Nickel Metal Hydride batteries, otherwise, leave it in the Alkaline position. SQ™ Switch: Shipped in the ON position, use a screwdriver or pen to slide to the OFF position if needed.
  • Page 17 LR-500 Quick Reference LR-500 Look&Listen™ Display Dots indicate the relative RF signal strength. Indicates the unit is in PROGRAM mode. Indicates the unit is in PROGRAM mode. To enter PROGRAM mode, press and hold the UP and DOWN keys until the PGM icon appears in the display.
  • Page 18 LR-500 Setup Instructions Remove the product Remove outer packaging and plastic cover. Inspect for physical damage. If damage is apparent, please contact Listen Technologies Corporation technical support for assistance. See page 89 for contact information. Open the front access door If locked, use a pocketknife or small screwdriver to unlock the door locks on both sides of the unit.
  • Page 19 LR-500 Setup Instructions CAUTION: If you are using any battery type other than rechargeable Nickel Metal Hydride (NiMH) batteries, make sure the BATTERY selection switch is in the alkaline position. Set SQ™ switch The SQ™ switch is inside the battery compartment next to the Battery Select switch.

  • Page 20: Setup Instructions

    Your headset or earphone will connect to the jack on the top of the unit. Either Your headset or earphone will connect to the jack on the top of the unit. Either mono or stereo connectors may be used with a Listen receiver. Make certain you push the plug all the way into the jack.
  • Page 21 Select a Channel Select the channel to match the transmission channel by pressing the UP and DOWN buttons on the receiver. Listen recommends the use of wide band channels. At 72 MHz: 72 MHz receivers operate on 17 wide band channels and 40 narrow band channels.

  • Page 22: Operation Instructions

    To Lock into Only One Channel Press and hold the SEEK button for 5 seconds to lock a receiver onto the currently tuned channel. Press and hold the button again to unlock. When locked the LED on top of the unit will flash when you press the SEEK button.

  • Page 23: Programming Instructions

    Press the SEEK button to toggle channels between locked out and non-locked out modes Exiting PROGRAM mode To exit the PROGRAM mode, let the receiver sit idle (don’t press any buttons) for 5 seconds. The receiver will automatically return to normal operation. If you haven’t finished programming the unit and it automatically exits, press and hold the UP &...
  • Page 24 • If the receiver is going to be close to the transmitter (i.e. in a classroom), setting the squelch setting high so that when the transmitter is turned off it immediately squelches and ignores transmitters in other rooms.

  • Page 25: Squelch Programming

    Adjusting the squelch setting will keep your LR-500 receiver from picking up noise when the transmitter is not transmitting, or when you lose the signal by being out of range or if encountering interference.

  • Page 26: Charging Batteries

    LR-500 Charging Batteries The LR-500 and all Listen receivers are unique because they have SmartCharge™ chargers built in. When any of these units are connected to an LA-202 wall transformer or dropped into a Listen charging case, NiMH batteries will be charged. To charge the batteries using the LA-202 wall transformer, plug the transformer into the jack marked “PWR/CHG”...
  • Page 27 NOTE: Listen provides high performance constant current NiMH (Nickel Metal Hydride) batteries. These may be purchased from your Listen dealer (ask for part number LA-362). One of several charging cases available from Listen. See www.listentech.com for more options. LA-311 - 16-unit Drop In Charging Case shown...

  • Page 28: Wall Transformer Operation

    12. Please review the information on page 22 for important information regarding battery type and charging. The LA-202 wall transformer plugs into the side of your portable transmitter or receiver. www.listentech.com...
  • Page 29 Notes...
  • Page 33 LR-400 Package Contents • LR-400 (72 MHz or 216 MHz) • Warranty Card • Receiver User Manual Optional Accessories See pages 81-82 Part Number 72 MHz: LR-400-072 216 MHz: LR-400-216...

  • Page 35: Lr-400 Table Of Contents

    LR-400 Table of Contents Architectural Specifications Specifications Quick Reference Setup Instructions Operation Instructions Squelch Information Squelch Programming Charging Batteries Wall Transformer Operation Supplementary Information Channel Selection Listen SQ™ RF Reception Maximization Strategies 72 MHz Frequency Compatibility Table 216 MHz Frequency Compatibility Table Optional Accessories Troubleshooting Compliance Notice...

  • Page 37: Architectural Specifications

    LR-400 Specifications Architectural Specifications The FM receiver shall be capable of receiving on 57 wide and narrow band channels with a SNR of 80dB or greater. The receiver shall be capable of seeking channels. The device shall have an adjustable squelch. The device shall have an audio frequency response of 63 Hz to 15 KHz, ± 3dB at 72 MHz, or of 63 Hz to 10 kHz, ±...
  • Page 38 LR-400 Specifications Set Up Controls User Controls Controls Programming LCD Display Indicators Battery Type Battery Life (Listen batteries) Battery Charging (NiMH only) Power Power Supply Connector Compliance Dimensions W x D x H Unit Weight Physical Unit Weight with batteries Shipping Weight Door Temperature - Operation...
  • Page 39 On/Off and Volume control dial control dial • Slow Flashing: Battery is low • Slow Flashing while charging: Unit is charging www.listentech.com 3.5mm Input Jack: 3.5mm Input Jack: A Listen earpiece or headset connects here. On/Off and Volume control dial:...

  • Page 40: Quick Reference

    LR-400 Quick Reference LR-400 Inside Access Door Up and Down buttons: Used to select a channel. Used to select a channel. Battery Select Switch: Place in NiMH Place in NiMH position ONLY if you are using Nickel Metal Hydride batteries, otherwise, leave it in the Alkaline position.
  • Page 41 LR-400 Quick Reference LR-400 Look&Listen™ Display Dots indicate the relative RF signal strength. When there is a full signal the unit will display all 8 dots. the unit will display all 8 dots. When the padlock is visible, the channel is When the padlock is visible, the channel is locked.
  • Page 42 LR-400 Setup Instructions Remove the product Remove outer packaging and plastic cover. Inspect for physical damage. If damage is apparent, please contact Listen Technologies Corporation technical support for assistance. See page 89 for contact information. Open the front access door If locked, use a pocketknife or small screwdriver to unlock the door locks on both sides of the unit.
  • Page 43 Connect an Earphone or Headset Your headset or earphone will connect to the jack on the top of the unit. Either mono or stereo connectors may be used with a Listen receiver. Make certain you push the plug all the way into the jack.

  • Page 44: Setup Instructions

    Set Squelch See pages 43 and 44 for squelch and programming information. Earphone/Headset jack Earphone/Headset jack LCD display will activate when on Red LED will illuminate when on Turn volume knob Turn volume knob counterclockwise to turn on www.listentech.com...
  • Page 45 Select a Channel Select the channel to match the transmission channel by pressing the UP and DOWN buttons on the receiver. Listen recommends the use of wideband channels. At 72 MHz: 72 MHz receivers operate on 17 wide band channels and 40 narrow band channels.

  • Page 46: Operation Instructions

    Another way to find a channel on the LR-400 is to use the SEEK button. When you do this, the Listen receiver looks for the next active channel. Sometimes the unit will mistake interference for a real broadcast signal. If you get interference, press the SEEK button again.
  • Page 47 • If the receiver is going to be close to the transmitter (i.e. in a classroom), setting the squelch setting high so that when the transmitter is turned off it immediately squelches and ignores transmitters in other rooms.

  • Page 48: Squelch Programming

    Adjusting the squelch setting will keep your LR-400 receiver from picking up noise when the transmitter is not sending audio, or when you lose the signal by being out of range or if encountering interference.

  • Page 49: Charging Batteries

    LR-400 Charging Batteries The LR-400 and all Listen receivers are unique because they have SmartCharge™ chargers built in. When any of these units are connected to an LA-202 wall transformer or dropped into a Listen charging case, NiMH batteries will be charged. To charge the batteries using the LA-202 wall transformer, plug the transformer into the jack marked “PWR/CHG”...
  • Page 50 NiMH (Nickel Metal Hydride) batteries. These may be purchased from your Listen dealer (ask for part number LA-362). One of several charging cases available from Listen. See the www.listentech.com for more options. LA-311 - 16-unit Drop In Charging Case shown...

  • Page 51: Wall Transformer Operation

    36. Please review the information on page 45 for important information regarding battery type and charging. The LA-202 wall transformer plugs into the side of your portable transmitter or receiver. www.listentech.com...
  • Page 52 Notes...
  • Page 53 Notes...
  • Page 57 LR-300 Package Contents Part Number 72 MHz: LR-300-072 • LR-300 (72 MHz) • Warranty Card • Receiver User Manual Optional Accessories See pages 81-82...

  • Page 59: Lr-300 Table Of Contents

    LR-300 Table of Contents Architectural Specifications Specifications Quick Reference Setup Instructions Operation Instructions Charging Batteries Wall Transformer Operation Supplementary Information Channel Selection Listen SQ™ RF Reception Maximization Strategies 72 MHz Frequency Compatibility Table 216 MHz Frequency Compatibility Table Optional Accessories...

  • Page 61: Architectural Specifications

    LR-300 Specifications Architectural Specifications The FM receiver shall be capable of receiving on 17 wide band channels and have a SNR of 80dB or greater. The receiver shall be capable of seeking channels. The device shall have a squelch. The device shall have an audio frequency response of 63 Hz to 15 KHz, ±...
  • Page 62 LR-300 Specifications Set Up Controls Controls User Controls Programming Indicators Battery Type Battery Life (Listen batteries) Battery Charging (NiMH only) Power Power Supply Connector Compliance Dimensions W x D x H Unit Weight Physical Unit Weight with batteries Shipping Weight...

  • Page 63: Quick Reference

    LR-300 Quick Reference LR-300 Front 3.5mm Input Jack: A Listen earpiece or headset connects here. headset connects here. LED: LED: When lit, indicates On/Off and Volume control dial On/Off and Volume control dial unit has power. www.listentech.com...
  • Page 64 LR-300 Quick Reference LR-300 Inside Access Door Battery Select Switch Battery Select Switch Battery Select Switch: Place in NiMH position ONLY if you are using Nickel Metal Hydride batteries, otherwise, leave it in the Alkaline position. SQ™ Switch: Shipped in the ON position, use a screwdriver or pen to slide to the OFF position if needed.
  • Page 65 LR-300 Setup Instructions Remove the product Remove outer packaging and plastic cover. Inspect for physical damage. If damage is apparent, please contact Listen Technologies Corporation technical support for assistance. See page 89 for contact information. Open the front access door If locked, use a pocketknife or small screwdriver to unlock the door locks on both sides of the unit.
  • Page 66 Connect an Earphone or Headset Your headset or earphone will connect to the jack on the top of the unit. Either mono or stereo connectors may be used with a Listen receiver. Make certain you push the plug all the way into the jack.
  • Page 67 Find an audio transmission using SEEK To find a channel on the LR-300 use the SEEK button. When you do this, the Listen receiver looks for the next active channel. Sometimes the unit will mistake interference for a real broadcast signal.

  • Page 68: Operation Instructions

    SEEK button. IMPORTANT : Because the LR-300 has no LCD display, it is important to recognize when the unit is locked on a channel. If the unit sounds distorted or...

  • Page 69: Charging Batteries

    LR-300 Charging Batteries The LR-300 and all Listen receivers are unique because they have SmartCharge™ chargers built in. When any of these units are connected to an LA-202 wall transformer or dropped into a Listen charging case, NiMH batteries will be charged.
  • Page 70 13-hour charge cycle over again. When not using the LR-300, it is recommended to leave the unit on the charger. The charger provides a “maintenance” charge that keeps the battery at 100%. If the unit is not on the charger, the battery will lose up to 20% of its charge per month.

  • Page 71: Wall Transformer Operation

    The LR-300 will operate normally when connected to a wall transformer. Use Listen part number LA-202, available from any Listen dealer. Connect the wall transformer to the jack on the side of the LR-300 marked “PWR/CHG” and plug the wall transformer into a grounded AC outlet.
  • Page 72 Notes...
  • Page 73 Notes...

  • Page 75: Supplementary Information

    Supplementary Information Channel Selection Listen SQ™ RF Reception Maximization Strategies 72 MHz Frequency Compatibility Table 216 MHz Frequency Compatibility Table Optional Accessories Troubleshooting Compliance Notice FCC Statement Warranty Contacting Listen...

  • Page 77: Channel Selection

    77-80) in this case as long as the adjacent channel transmitter is at least 50% further away from the receiver as its transmitter. Example: The transmitter for the receiver on channel E is 100 feet from the receiver. The adjacent channel transmitter on...
  • Page 78 216 MHz band due to channel 13, it is recommended that you switch to a 72 MHz system. NOTE: The LR-300-072 can only be used with the 17 wide band 72 MHz channels, if you are using the LR-300 choose only lettered wide band frequencies on your transmitter.

  • Page 79: Listen Sq

    To reduce noise of our systems, Listen now offers a noise reduction technology called Listen SQ™. Both the transmitter and receiver must have SQ™ on to achieve the desired results. SQ™ is now available on new Listen systems, including the system you received in this shipment.

  • Page 80: Rf Reception Maximization Strategies

    40 feet (12m) of the LT-800-216 transmitter or within 5 feet (1.5 m) of the LT-700-216 transmitter. Coaxial cable, connectors, and optional antenna mounting kits are available from Listen. Visit www.listentech.com or ask your dealer for details.
  • Page 81 72 MHz Compatibility Chart 72MHz Compatibility Chart upd 10.04.04 Frequency Phonak Phonic Listen Microfield Comtek Williams* Gentner 72.0250 72.0500 72.0750 72.1000 72.1250 72.1500 72.1750 72.2000 72.2250 72.2500 72.2750 72.3000 72.3250 72.3500 72.3750 72.4000 72.4250 72.4500 72.4750 72.5000 72.5250 72.5500 72.5750 72.6000 72.6250 72.6500...
  • Page 82 72.6250 72.6500 72.6750 72 MHz Compatibility Chart 72.7000 72.7250 74.7500 74.7750 Frequency Phonak Phonic Listen Microfield 75.2250 75.2500 75.2750 75.3000 75.3250 75.3500 75.3750 75.4000 75.4250 75.4500 75.4750 75.5000 75.5250 75.5500 75.5750 75.6000 75.6250 75.6500 75.6750 75.7000 75.7250 75.7500 75.7750 75.8000 75.8250 75.8500 75.8750...
  • Page 83 216 MHz Compatibility Chart Frequency Phonak Listen Microfield Comtek Williams Gentner 216.0125 216.0250 216.0375 216.0625 216.0750 216.0875 216.1125 216.1250 216.1375 216.1625 216.1750 216.1875 216.2125 216.2250 216.2375 216.2625 216.2750 216.2875 216.3125 216.3250 216.3375 216.3625 216.3750 216.3875 216.4125 216.4250 216.4375 216.5125 216.5250 Frequency Phonak Listen...
  • Page 84 216.3875 216.4125 216 MHz Compatibility Chart 216.4250 216.4375 216.5125 216.5250 Frequency Phonak Listen Microfield Comtek Williams Gentner 216.5375 216.5625 216.5750 216.5875 216.6125 216.6250 216.6375 216.6625 216.6750 216.6875 216.7125 216.7250 216.7375 216.7625 216.7750 216.7875 216.8125 216.8250 216.8375 216.8625 216.8750 216.8875 216.9125 216.9250 216.9375 216.9625...

  • Page 85: Optional Accessories

    Optional Accessories Earphone Options LA-164 LA-161 LA-162 Single Ear Bud Stereo Ear Buds Ear Speaker LA-165 LA-166 LA-170 Stereo Headphones Neck Loop Behind-the-Head Stereo Headphones...
  • Page 86 Optional Accessories Connector Options LA-265 LA-266 LA-275 Consumer Professional Sacrificial Cable Camcorder Cable Camcorder Cable...

  • Page 87: Troubleshooting

    If you’re using the LR-300, re-scan the channels to find the clearest channel (see page 63). Make sure the SQ™ switch on your transmitter and receivers is turned ON (or OFF, if some of your equipment is not SQ™...

  • Page 88: Receiver Troubleshooting

    My LR-300 sounds distorted or there is no audio. Because the LR-300 has no LCD display, it is important to recognize when the unit is locked on a channel. If the unit sounds distorted or there is no audio heard and pressing the seek button does not correct the problem, the unit is probably locked on the wrong channel.
  • Page 89 SEEK button for 5 seconds. When the channel is locked, the padlock icon will appear on the LR-400 and LR-500 displays. On the LR-300, the LED will flash when the channel is locked and seek is pressed. In addition, you can lock the access doors to the units.

  • Page 90: Compliance Information

    Compliance Information Compliance This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) These devices may not cause harmful interference, and (2) these devices must accept any interference received, including interference that may cause undesirable operation.

  • Page 91: Fcc Statement

    • Reorient or relocate the receiving antenna. • Increase the separation between the equipment and receiver. • Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. • Consult the dealer or an experienced radio/TV technician for help.

  • Page 92: Warranty Information

    Listen Technologies Corporation (Listen) warrants its transmitters and receivers (LT-82, LT-700, LT-800, LR-100, LR-42, LR-44, LR-300, LR-400, LR-500, LR-600) to be free from defects in workmanship and material under normal use and conditions for the useful lifetime of the product from date of purchase.

  • Page 93: Contacting Listen

    Listen for replacement or repair requirements payable by the carrier. Listen’s corporate headquarters are located in Salt Lake City, Utah U.S.A. and are open Monday through Friday, 8am to 5pm Mountain Time. 14912 Heritagecrest Way Salt Lake City, Utah 84065-4818 801.233.8992 800.330.0891 North America 801.233.8995 support@listentech.com www.listentech.com Contacting Listen...
  • Page 94 Notes...
  • Page 96 Listen Technologies Corporation 1412 Heritagecrest Way Salt Lake City, Utah 8406-4818 U.S.A. 801.2.82 800.0.081 North America 801.2.8 www.listentech.com info@listentech.com Printed in the United States of America © 2006 Listen Technologies Corporation All Rights Reserved 2006 20061011 ®...

This manual is also suitable for:

Lr-400Lr-500

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