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Содержание 863.500

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Страница 3: ...233 8992 800 330 0891 North America 801 233 8995 Fax support listentech com www listentech com Thank you and enjoy your listening experience Best regards Russell Gentner and the Listen Team Lifetime Warranty the best in the business Listen s full time technical support is passionate about what they do and you can depend on them to solve any equipment issues with confidence In the few instances whe...

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Страница 5: ...s 28 Operating Instructions 30 Accessories 34 Notes 35 LR400 500 FM Receivers Specifications 45 Block Diagram 47 Quick Reference 48 Setup Instructions 50 Operating Instructions 53 Programming Instructions LR 500 only 59 Accessories 60 Notes 61 Supplementary Information Battery Charging Information 69 Frequency Chart 70 Troubleshooting 71 Frequently Asked Questions 73 Compliance Warranty and Contac...

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Страница 9: ... Design Guide Stationary FM Design Guide Table of Contents Table of Contents 3 Technology Overview 5 System Overview 6 Key Concepts in Designing an FM System 8 Notes 17 ...

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Страница 11: ... between the receiver and the transmitter This could occur in rooms with metallic or other RF reflective surfaces such as furniture walls or coated glass The result of multipath is the receiver signal coming in and out of squelch when the receiver is moved Portable applications are much more susceptible to multipath than those that are stationary Multipath could be worse as the distance between tr...

Страница 12: ...layer MP3 player computer DVD etc Audio will be Connected into the audio inputs of the stationary transmitter Input Source LT 800 Stationary FM Transmitter 863 MHz Input source LR 500 Portable Programable Display FM Reciver 863 MHz LR 400 Portable Display FM Reciver 863 MHz The LT 800 transmitter modulates the audio on an FM carrier and transmits the signal via an antenna Transmitter LA 129 Articu...

Страница 13: ...e unit or remote mounted Antenna Listen offers two different portable receivers the LR 400 and LR 500 Receivers LA 131 Antenna Kit for Rack Mount 863 MHz LA 130 Remote Antenna Kit 863 MHz LR 500 Portable Programable Display FM Reciver 863 MHz LR 400 Portable Display FM Reciver 863 MHz LA 129 Articulating Antenna ...

Страница 14: ...ed right and left phono connectors XLR Wiring Input from Balanced Audio Source Unbalanced Audio Source 1 4 Phone Wiring Balanced Tip Ring Sleeve Unbalanced Top Ring Top Ring Sleeve Audio from Balanced Audio Source Unbalanced Audio Source Sleeve Input 1 Connect the audio source s Balanced XLR or 1 4 phono connector The LT 800 has two audio input options Input 1 and Input 2 Input 1 is a balanced con...

Страница 15: ...pment Input 2 Connect the audio source s The LT 800 can accomdate inputs simultaneously with the use of the input level potentiometer When two inputs are present both sets of input level lights will be activated Using Two inputs Mix Level The mix level acts as the master transmit control It will increase the transmit gain on the mix of the two levels if two levels are in use Mix level adjustment I...

Страница 16: ...es from other transmitters and from other equipment such as a computer Listen s LT 800 863 offers 17 different channels to choose from Listen s LT 800 863 offers 17 different channels to choose from This increases the chance you ll find an interference free channel The best way to check for interference is to turn a receiver on and press the SEEK button If there are any channels with interference ...

Страница 17: ...tenna Kit connects to the LT 800 and can be placed away from the transmitter for better range It also allows the unit to be rack mounted with the antenna remotely using the LA 326 Universal Rack Mounting Kit The LA 130 comes with 25 of black coaxial cable RG 58 ATTENTION Long cable runs can result in signal degradation due to the loss characteristics of the cable Minimize cable runs as much as pos...

Страница 18: ...The following strategies should be used maximize this signal Maximizing Transmission Range Transmitting and receiving antennas When designing and installing your system keep in mind that the location of both the transmitting and receiving antennas is critical to maximize broadcast range Eliminate or minimize obstructions between the transmitting and receiving antenna Minimize the distance between ...

Страница 19: ...ng antennas vertically RF Power switch Position the RF Power switch on the back of the LT 800 to full RF Power unless lower power is necessary Cable Length Keep coaxial cable from transmitter to antenna as short as possible CAUTION When installing antennas ensure the antenna is clear of power lines RF Power Switch ...

Страница 20: ...with dual units installed The LA 131 rack mount accessory will allow you to place your LA 129 antenna at the front of the rack Having the antenna in the front will give better reception range NOTE The antenna may need to be remote mounted using the LA 130 Remote Antenna Kit if the transmitter s is rack mounted If a rack is metal it is not recommended to have the antenna inside Also the depth of th...

Страница 21: ...e number of transmitters operating in this scenario However to reduce the possibility of the receiver accidentally receiving interfering transmissions use the following guide lines Reduce the transmission power on the rear of the LT 800 Stationary Transmitter to the lowest level possible Get the transmitting antenna as close to the receivers as possible Increase the squelch threshold on the receiv...

Страница 22: ...gainst each other Reduce the transmission power on the rear of the LT 800 Stationary Transmitter to the lowest level possible Receiver DX and Local DX Mode Both strong and weak channels will be automatically tuned This will increase the range of the transmission Local mode Only strong channels will be automatically tuned in Meeting participants need to select any one of say six language interpreta...

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Страница 24: ...18 Design Guide Notes ...

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Страница 29: ... Configurations LT 800 863 01 North America LT 800 863 02 Asia UK LT 800 863 03 Euro LT 800 User s Manual Table of Contents Specifications 25 Block Diagram 26 Quick Reference 27 Setup Instructions 28 Operating Instructions 30 Accessories 34 Notes 35 LT 800 863 Stationary FM Transmitter LA 207 Power Supply LA 129 Articulating Antenna ...

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Страница 31: ...d Input 2 Mixed Output Rear Panel 2 phono connectors unbalanced 10 dBU nominal output level 19dbu maximum impedance 10 ohms Headphone Output Monitor Front Panel One 3 5mm stereo connector unbalanced adjustable output level 7dbu maximum impedance 10 ohms 100mW 32ohms Controls Front Panel Power Test Tone on off Channel up down Input Levels Mix Level Contour Monitor volume control Rear Panel Input 1 ...

Страница 32: ...Front Panel Input Level Select Mic Phantom Pwr Mic Line ANTENNA 12VDC RF POWER INPUT 1 INPUT 2 MIX OUTPUT TEST TONE CONTOUR PROCESS MIX LEVEL MONITOR 115 230VAC 50 60 Hz 12VDC 1 3A Functions controlled by the CPU Module POWER On Line Volume Down Compression Ratio internal ajustment Female XLR 1 4 Combo Connector 1 Sleeve 3 Ring 2 Tip BNC Low High Mid Off On Off Green LED Input 2 VU Meter MIX Level...

Страница 33: ... or cuts high frequencies RF antenna output BNC connector for antenna 50 ohm Power Input Connect power supply here included Audio Outputs Input 1 and input 2 mixed audio outputs Input 1 Balanced input for connection of a line level or microphone accepts either a XLR or phono plug Input 2 Audio inputs stereo or mono Input 2 Level Switch Set switch to match the level of your Input 2 source Input 1 L...

Страница 34: ...g to the instructions included with the kit Mount LT 800 s in Rack if desired 3 Connect Antenna to rear of transmitter remotely or rack mount Connect Antenna Rack Mount with dual units installed Rack Mount with single unit installed 4 Plug the power supply into the power connector on the back panel and then plug the power supply into an outlet Only use a Listen approved power supply The LA 207 a s...

Страница 35: ...s Plug your balanced or unbalanced audio source into Input 1 Use the following diagram Input 1 6B Plug your unbalanced audio source into Input 2 and select the audio level switch for 10dBu or 10dBu to match the audio level coming from your equipment Input 2 The LT 800 has two audio input options Input 1 and Input 2 Input 1 is a balanced connection using either an XLR or phono connector Input 2 has...

Страница 36: ...e channel select UP and DOWN buttons Channel select up and down buttons 3 Lock on Channel Once you determine your transmit channel you can lock the transmitter on that channel To lock a channel hold the Channel Select Up button for 3 seconds until the padlock icon appears on the display To unlock repeat this process and the padlock icon will disappear Power Button ...

Страница 37: ... 1 If you have two audio sources connected to both Input 1 and 2 adjust the level of one input using the VU meter then adjust the output level of the other audio source Adjust the input level until the left VU meter s occasionally illuminate the red LEDs Illumination of the red LEDs indicates the unit is in limiting Limiting is required so that the unit does not over modulate the transmitter If yo...

Страница 38: ... music The contour knob adjusts the relative equalization of the unit This equalization boosts or cuts frequencies above 5 kHz 3 Adjust Mix Level Adjust the mix level until the right VU meter occasionally illuminates the red LED This is the level adjustment for the combined output from Input 1 and Input 2 Contour Knob LT 800 Operating Instructions Mix Level Adjustment Knob ...

Страница 39: ...ising or lowering the signal level accordingly to provide a consistent sound output level This feature should be used in applications where a consistent sound level is important and the input levels vary substantially Typically you would not want to engage the Process Mode when a speaker s emphasis is critical to the message they are conveying LT 800 Operating Instructions Process ...

Страница 40: ...LA 280 in to 3 5 mm Microphone Adapter for LT 800 LT 82 Accessories LA 278 Behind the Head Microphone LA 261 Lavalier Microphone LA 131 Antenna Kit for Rack Mount 863 MHz LA 130 Remote Antenna Kit 863 MHz LA 326 Universal Rack Mounting Kit ...

Страница 41: ...35 LT 800 Notes ...

Страница 42: ...36 LT 800 Notes ...

Страница 43: ...37 LT 800 Notes ...

Страница 44: ...Notes ...

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Страница 49: ...863 LR 400 500 User s Manual Table of Contents Specifications 43 Block Diagram 45 Quick Reference 46 Setup Instructions 48 Operating Instructions 51 Programming Instructions LR 500 only 58 Accessories 59 Notes 60 LR 400 Portable Display FM Receiver 863 MHz LR 500 Portable Programmable Display FM Receiver 863 MHz ...

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Страница 51: ... 80 modulation Output 3 5 mm connector unbalanced 0dBu nominal output level 16 mW maximum impedance 32 Ohms Controls User Controls Channel up down SEEK volume Set up Controls battery compartment NiMH alkaline battery switch Programming Channel Lock On RF Power DX Local Indicators LED Red illuminated when unit is on Flashes when bat teries are low or to indicate charging Flashes when locked and SEE...

Страница 52: ... A Weighted System Distortion 2 THD 80 modulation Output 3 5 mm connector unbalanced 0dBu nominal output level 16 mW maximum impedance 32 Ohms Controls User Controls Channel up down SEEK volume Set up Controls battery compartment NiMH alkaline battery switch Programming Channel Lock Out Channel Lock On DX Local Indicators LED Red illuminated when unit is on Flashes when batteries are low or to ind...

Страница 53: ...ctor VOLUME On Off Companding Q Technology Pre emphasis RF Modulation LCD Display Universal Power Supply not included Power Supply CPU Module Up Power charge indicator Red LED Down Seek Tip Ring Sleeve 115 230VAC 50 60 Hz 2 AA Batteries ALkaline or NiMH NiMH Alkaline ...

Страница 54: ...vel channel battery status and lock status Battery Compartment Place 2 AA batteries in compartment Be sure to follow polarity pattern On Off and Volume Control Dial RF input indicator Indicates the RF receive level Channel Display Displays the channel the LR 400 is currently on Lock Icon Indicates the unit is locked on current channel Battery Select Switch Choose the type of batteries being used P...

Страница 55: ... Compartment Place 2 AA batteries in compartment Be sure to follow polarity pattern On Off and Volume Control Dial RF input indicator Indicates the RF receive level Channel Display Displays the channel the LR 500 is currently on Lock Icon Indicates the unit is locked on current channel Battery Select Switch Choose the type of batteries being used Power charging port Front door lock Battery Level I...

Страница 56: ... pull the door downward DO NOT place batteries in the unit at this time 3 Two types of batteries may be used The unit is shipped with the switch in the Alkaline position Use a pen or small screwdriver to select the battery type Select Battery Type Warning Do not place the BATTERY switch in the NiMH position if you are not using Nickel Metal Hydride Batteries The NiMH position will attempt to charg...

Страница 57: ... for all battery types other than NiMH Place Batteries in Unit NOTE Listen provides industrial strength AA alkaline batteries part number LA 361 and high performance AA Nickel Metal Hydride batteries part number LA 362 These may be purchased from your Listen dealer 5 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 ...

Страница 58: ...d on by rotating the volume dial counterclockwise The red LED on top of the unit should activate and the LCD display should illuminate If they do not make sure you have installed the batteries correctly and that you are using fully charged batteries Turn the Unit On ...

Страница 59: ... 2 Antenna Placement NOTE Be aware that the transmission range could decrease if the antenna is not in an upright position 2A Antenna Position Raise the antenna to the upright position When the antenna if fully extended it will click into position 3 Select a Channel 3A Select the channel using channel select buttons Select the channel to match the transmission channel by pressing the UP and DOWN b...

Страница 60: ...comfortable level Another way to find a channel on the LR 400 500 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 The unit may stop on a channel that is close to the actual broadcast channel in which case the channel will soun...

Страница 61: ... 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 LR 400 500 Operating Instructions Locking the Receiver on One Channel The unit can be electronically locked on one channel so that it will not change channels even if the SEEK button is pressed It is recommende...

Страница 62: ...y signal will be heard but you can have a longer range before the unit will squelch 2 Once the desired squelch setting is found press SEEK to exit the squelch programming mode 3 Squelch setting 00 is no squelch this setting disables the squelching capabilities of the receiver Squelch setting 20 is maximum squelch sensitivity when on this setting there must be a very strong and stable RF signal for...

Страница 63: ...sroom setting the squelch setting high so that when the transmitter is turned off it immediately squelches and ignores transmitters in other rooms If in an area that has a lot of interference set the squelch high If you are in an area that has a lot of inference you may want to set the squelch setting to a high setting to ensure the interference is not picked by the receiver Squelch Setting Squelc...

Страница 64: ...down button and turn the unit on 1A The LCD shall indicate the current setting D or L 1B Pressing the down button will toggle between Local and DX Mode D or L 1C 1D Pressing seek will enter the setting and return to normal operational mode LR 400 500 Operating Instructions To reset the receiver to default settings follow these instructions 1 Reset to default settings Reseting to defaults Local DX ...

Страница 65: ...own buttons will scroll through the functions f1 Pressing the seek button will enter that particular function F1 Channel Lock out No channels are locked out as default Pressing the up and down buttons will scroll through channels Pressing the seek button will toggle between available and locked out for that channel When a channel is locked out the L O on the LCD shall be displayed 1 To enter progr...

Страница 66: ...e LA 322 8 Unit Portable Carrying Case LA 323 4 Unit Portable Charging Carrying Case w Removable Lid LA 324 8 Unit Portable Charging Carrying Case w Removable Lid LA 325 16 Unit Portable Charging Carrying Case w Removable Lid LA 162 Stereo Ear Buds LA 164 Ear Speaker LA 165 Stereo Headphones LA 166 Neck Loop LA 170 Behind the Head Stereo Headphones LA 161 Single Ear Bud LA 163 Replacement Cushions...

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Страница 73: ...lementary Supplementary Information Table of Contents Battery Charging Information 69 Frequency Chart 70 Troubleshooting 71 Frequently Asked Questions 73 Compliance Warranty and Contact Information 75 Notes 76 ...

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Страница 75: ...red It is best to store your charging case at room temperature away from heat sources and direct sunlight The Listen receivers are unique because they have SmartCharge chargers built in When any of these units are connected to an LA 208 wall transformer or dropped into a Listen charging case NiMH batteries will be charged SmartCharge uses a pulse charging which greatly extends the life of Nickel M...

Страница 76: ...70 Supplementary Frequency Chart Frequencies ...

Страница 77: ...eck the connections from the audio source to the LT 800 If you can try to use a balanced audio source this will reduce the chance of creating hum Connect a ground wire from the LT 800 to ground and or to the ground of the source audio There is a tone The Test Tone button has been pressed its LED light is on Push the Test Tone button to turn off the tone The Audio Input 1 sounds tinny If you are us...

Страница 78: ...igned to handle the 25 kHz deviation of the Listen transmitter This can be corrected by turning the Mix Level knob down Another possibility is that you have enabled the SQ function of the LT 800 and this feature is not available in other companies products You will need to disable SQ in this event see page 2 If you are using Phonak receivers the transmitter is capable of operating in the Phonak mo...

Страница 79: ...he LR 500 is programmable and can be set to just those channels you need Q How many channels can I program into the LR 500 A 1 to 17 The receiver has 17 channels and you can program it to have just the channels you want to have access to It can be a two channel receiver a 12 channel receiver or keep all 17 Q How many receivers can I have in a system A As many as you need the number is endless Q Wh...

Страница 80: ...stions Frequently Asked Questions Q Can the receiver be locked on a channel if I need that A Yes All Listen receivers can be locked Q What is the battery life of a receiver A 20 hours using alkaline batteries 12 hours using NiMH batteries ...

Страница 81: ...ot liable for consequential damages due to any failure of equipment to perform as intended Listen shall bear no responsibility or obligation with respect to the manner of use of any equipment sold by it Listen specifically disclaims and negates any warranty of merchantability or fitness of use of such equipment including without limitation any warranty that the use of such equipment for any purpos...

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Страница 84: ...12 Heritagecrest Way Salt Lake City Utah 84065 4818 U S A 801 233 8992 800 330 0891 North America 801 233 8995 fax www listentech com Printed in the United States of America 2007 Listen Technologies Corporation All Rights Reserved 200752 ...

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