Listen LT-700-072 User Manual
Portable display fm transmitter
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- User manual (40 pages) ,
- User manual (28 pages) ,
- Quick reference card (2 pages)
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Summary of Contents for Listen LT-700-072
- Page 3 Should you experience any problems whatsoever with your Listen products, we are ready to help you in any way we can with prompt, efficient customer care. Because at Listen, it’s all about you! And should you have any comments on how we might improve our products or our service, we’re here to listen.
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Page 5: Table Of Contents
863 MHz Specifications Quick Reference Setup Instructions Operating Instructions Programming Instructions Charging Batteries Wall Transformer Operation Channel Selection Listen SQ™ RF Reception Maximization Strategies 72 MHz Frequency Compatibility Table 216 MHz Frequency Compatibility Table Troubleshooting Compliance Notice FCC Statement Warranty... -
Page 7: Package Contents
LT-700 Package Contents LT-700-072/216 Contents LT-700-863 Contents • LT-700-072 (72 MHz) or • LT-700-863 (863 MHz) • LT-700-216 (216 MHz) Listen Part Number Listen Part Number LT-700-072 (72 MHz) LT-700-863 (863 MHz) LT-700-216 (216 MHz) Optional Accessories See page 23... -
Page 8: 72/216 Mhz Specifications
The device shall incorporate an LCD display that indicates channel, battery level, low battery, battery charging, channel lock, program mode, channel lock status and RF signal strength. The portable transmitter shall incorporate automatic battery charging circuitry for recharging of NiMH batteries. The Listen LT-700 is specified. Specification Specification... -
Page 9: 863 Mhz Specifications
LCD display that indicates battery level, channel, channel lock, low battery, battery charging, programming, and RF signal strength. The portable transmitter shall incorporate automatic battery charging circuitry for recharging of NiMH batteries. The Listen LT-700-863 is specified. Specifications... -
Page 10: Quick Reference
LT-700 Quick Reference LT-700 Front MUTE / TALK switch (more information on page 7) 3.5mm Input Jack A Listen microphone or line level cable connects here. Look & Listen Display™ The display shows level, channel, battery status, PROGRAM mode, whether a channel is locked, and whether a channel is locked out from selection (PROGRAM mode). - Page 11 SQ Switch: shipped in the ON position, use a screwdriver or pen to slide to the OFF position if needed. You should turn SQ off if you are using any non Listen receiver or older Listen receiver that does not have the SQ feature. (see page 15 for more information)
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Page 12: Setup Instructions
The microphone sensitivity switch is located inside the battery compartment, to the left of the BATTERY selection switch. The LT-700 is shipped with this switch in the center (MED) position. Listen recommends the following settings for our microphones. If you are using a microphone from another vendor, you may need to experiment with different settings. - Page 13 (ALK should be selected for all battery types other than NiMH). NOTE: Listen uses 2100mAh (milli-Amp-hour) constant current NiMH (Nickel Metal Hydride) batteries. These may be purchased from your Listen dealer (ask for part number LA-362). Connect the Microphone The microphone jack is located on top of the unit.
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Page 14: Operating Instructions
The LT-700-216 operates on 19 wide band channels and 38 narrow band channels. Channels beginning with a “2” are wide band channels and channels beginning with a “1” or “3” are narrow band channels. Listen recommends using wide band channels whenever possible, as they are not as noisy as narrow band channels. -
Page 15: Programming Instructions
Enter PROGRAM Mode Press and hold the UP and DOWN keys simultaneously until the PGM symbol is displayed (see the Look & Listen™ Quick Reference on page 6). Scroll Through Channels to Lock or Unlock Use the UP and DOWN channel select keys to scroll through all available channels. If the L/O symbol appears with a particular channel’s indicator, this means that particular channel will not be... -
Page 16: Charging Batteries
During the charge cycle, the red LED on top of the Listen product will flash slowly. When charging is completed, the LED will turn off. It is not necessary to unplug the charger; however, if you unplug the unit from the charger and then plug it back in, it will begin the 13-hour charge cycle over again. -
Page 17: Wall Transformer Operation
The LT-700 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 LT-700 marked “PWR/CHG” and plug the wall transformer into a grounded AC outlet. -
Page 18: Channel Selection
It is important to choose channels that are free from interference to achieve proper operation of your Listen equipment. This process is trial and error. Before turning on the transmitter, listen to the wide band channels (lettered channels at 72MHz and channels that start with a “2” for 216MHz when using a Listen receiver). -
Page 19: Listen Sq
Listen systems, including the system you received in this shipment. If you with older version Listen are planning to use this product with older Listen systems that do not have Listen products SQ or equipment not manufactured by Listen, you should disable Listen SQ. Your Listen equipment has been shipped to you with the SQ feature enabled. -
Page 20: Rf Reception Maximization Strategies
RF Reception Maximization Strategies For proper and dependable operation, Listen receivers should receive a strong and consistent signal from the originating transmitter. The following strategies should be used maximize this signal: a. When using your system, keep in mind that the location of both the transmitter and receiver is critical to maximizing signal strength. -
Page 21: 72 Mhz Frequency Compatibility Table
72 MHz Compatibility Chart Frequency Phonak Phonic Listen Microfield Comtek Williams* Gentner Telex Drake 72.0250 (11, 1) 72.0500 72.0750 (12, 3) 72.1000 A, (13, 4) 72.1 72.1250 (14, 5) 72.1500 72.1750 (15, 7) 72.2000 K, (8) 72.2 72.2250 (16, 9) 72.2500... -
Page 22: 216 Mhz Frequency Compatibility Table
216 MHz Compatibility Chart Frequency Phonak Light Listen Microfield Comtek Williams Gentner Speed 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... -
Page 23: Troubleshooting
Make sure the MUTE/TALK switch is in the TALK position. Make sure you have the microphone plugged all the way in to the input jack. Make sure you are using a Listen approved microphone (see list on page 8). If you are using the line input, make sure you have connected a line level, unbalanced input at the ìringî... - Page 24 NiMH position. Make sure the batteries are installed correctly. Make sure you are using the right kind of wall transformer (Listen part number LA-202) or charging case. Make sure the charging case is connected to power and the unit is securely pushed into its slot in the case.
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Page 25: Compliance Notice
Listen’s LT-700 Transmitter (216MHz only) Listen’s LT-700 transmitter is authorized by rule under the Low Power Radio Service (47 C.F.R. Part 95) and must not cause harmful interference to TV reception or United States Navy SPASUR installations. You do not need an FCC license to operate these transmitters. -
Page 26: Warranty
Utah. In the first ninety days after purchase, any defective product will be replaced with a new unit. After 90 days, Listen will, at its own discretion either repair or replace transmitters and receivers with a new unit or a unit of similar type and condition. -
Page 27: Optional Accessories
Optional Accessories Microphone Accessories LA-270 LA-272 LA-261 LA-262 LA-274 Noise Canceling Over-the-Head Mic Lavalier Microphone Over-the-Head Hand-Held Microphone w/ Earphone Microphone Microphone LA-277 LA-276 LA-278 LA-279 LA-263 Collar Conferencing Behind-the-Head Line/Mic Y Input Over-the-Ear Microphone Microphone Microphone Microphone Cable for LT-700 Presentation Style... - Page 28 Listen Technologies Corporation 14912 Heritagecrest Way Bluffdale, Utah 84065-4818, U.S.A. +1.801.233.8992 +1.800.330.0891 North America +1.801.233.8995 www.listentech.com Printed in the United States of America © 2008 Listen Technologies Corporation All Rights Reserved 081308 ®...
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