User`s Manual - Performance Audio
Contents
1. eese 20 216 MHz Frequency Compatibility Table oooooooooomooomoo 21 Tro bleshooting zx cec caer tie A ERE eis 22 EC CStatement s mat c Pace Peta Ua eere dada Rie ia 24 Warranty une dac breue ie A Ea a W nulla w 25 Optional Accessories en ee EI de e PEE Eee VERRE Fe 26 Q o o 9 O O m O m o o em o 9 e o O o o eo Specifications Architectural Specifications The FM speaker receiver shall be capable of receiving on 57 wide and narrow band channels The speaker receiver shall be have 10 watts output power and have a frequency response of 50Hz to 15KHz 3dB at 72MHz or of 50Hz to 10kHz 3dB at 216MHz The signal to noise ratio shall be 80dB or greater The device shall have an adjustable squelch and three band equalizer The device will incorporate a backlit LCD Display that indicates channel and RF signal strength as well as be used for channel selection programming The unit shall be programmable to display only used channels It shall also incorporate an electronically lockable volume and channel controls Controls should be found on the top and rear of the unit The device shall incorporate a power supply 120VAC 60Hz 43 Watts with output DC 12V 2500 mA tip negative It will alternately use an internal battery pack using eight AA alkaline or NiMH Rechargeable batteries and include recharging components for said NiMH batteries The speaker should have a minimum SPL of 110dB 3dB2. An included bracket will be able to be used as a handle for carrying or be adjustable up to 360 degrees around the unit for mounting The Listen LR 600 is specified Specifications Specification LR 600 072 LR 600 216 RF Frequency Range 72 025 75 950 MHz 216 025 216 975 MHz Number of Channels 57 17 wide 40 narrow 57 19 wide 38 narrow Sensitivity 6uV typical 1 uV maximum for 12dB SINAD Frequency Accuracy 005 stability 10 to 40 C 14 to 104 F Antenna Internal Optional Antennas Several available See www ListenTech com for details External Antenna Connector BNC Squelch Programmable in 20 steps Compliance FCC Part 15 Industry Canada Allsystem specifications are wireless end to end System Frequency Response 72MHz 50Hz 15kHz 3dB 216MHz 63Hz 1OkHz 3dB System Signal to Noise Ratio SQ enabled 80dB SQ enabled 80dB A weighted SQ disabled 60dB at 72 MHz SQ disabled 50dB at 216 MHz System Distortion lt 2 total harmonic distortion THD at 80 deviation Equalizer Three band continuously adjustable via rear panel trim pots Two phono connectors unbalanced 10dBu nominal input level adjustable Unbalanced Auxillary Input 11dBu maximum impedance 100k Ohms Two phono connectors unbalanced OdBu nominal output level Unbalanced Output 11dBu maximum impedance 1k Ohms Internal External Speaker Output 15 10 Watts peak RMS continuous power with 4 Ohm load Set up
3. NiMH rechargeable or unit alkaline LR 600 LCD Panel Details LR 600 Top Panel Details Indicates channel or when volume up or down RF Signal Strength button is pressed indicates volume lc CHANNEL SELECT Selects the next programmed channel Select indi v ass VOLUME As A L O When in the programming mode Adjusts volume up _ and down Volume this symbol indicates the channel is locked out and will not be displayed to the user Volume the Eon mode that allows you to lock out channels that are not used setting of 0 to 26 is indicated on rear panel LCD LOCK When the padlock icon is visible the channel buttons are locked and you cannot change the channel When the padlock is flashing both the channel and volume buttons are locked To lock channels press and hold SEEK for 5 seconds Repeatto unlock To lock channels and volume press SEEK and then the UP button Press SEEK and then DOWN to unlock o E LR 600 Powering Instructions There are three options for powering your LR 600 Supplied power supply External 12VDC Battery or Power Supply Internal Batteries Power Supply included with unit If you are using the LR 600 with the external power supply connect the power supply to the LR 600 and plug the power supply into a 115VAC 60 Hz outlet External 12VDC Source If you are using the LR 600 with an external 12VDC battery or power supply obtain a power connector with follow
4. User s Manual LR 600 Wireless Speaker Receiver www ListenTech com Listen Technologies Corporation 8535 South 700 West Suite A Sandy Utah 84070 2515 USA Telephone 1 801 233 8992 Toll Free North America 1 800 330 0891 Fax 1 801 233 8995 E mail info ListenTech com Don t miss a single sound Listen Dear Valued Customer Thank you for choosing Listen All of us at Listen are dedicated to providing you the highest quality products and prompt efficient customer care Our products are manufactured in an ISO 9000 factory that has been independently certified to the highest quality standards We stand ready to answer any questions you might have during installation or in the operation of our products Should there be any prob lems with your Listen products we are ready to help you in any way we can Should you have any comments on how we might improve our products or our service we re here to listen Here s how to reach us o L 2 0 E O o Telephone 1 801 233 8992 Fax 1 801 233 8995 Toll Free North America 1 800 330 0891 E Mail support ListenTech com Web www ListenTech com Thank you and enjoy your listening experience Best regards The Listen Team LT 800 Package Contents Listen Part Number LR 600 Wireless Speaker Receiver 72 MHz LR 600 072 72MHz or 216MHz 216 MHz LR 600 216 Adjustable removable handle mounting
5. Your Listen equipment has been shipped to you with the SQ feature enabled You may need to disable the SQ function for one or more of the following reasons 1 You are using your new Listen system with older version Listen equipment that does not have the SQ function 2 You are using your new Listen system with equipment supplied by other manu facturers 3 You expect that end users may bring and use their own receivers that don t have the SQ function Coaxial Cable The antenna for the LR 600 can be mounted directly on the unit if desired However you may find that the unit will provide better performance when the antenna is located elsewhere If you plan to mount the antenna in a different loca tion than on the top of the unit you must use cable and connectors rated at 50 Ohms Although cable used for cable TV installations looks similar to this cable it won t work with your Listen system If you need to run cable over a greater length than 50 feet for 216MHz applications or greater than 100 feet for 72MHz applications we recommend that you use RG 8 cable rather than RG 58 It is a lower loss cable meaning that more of your signal will reach the antenna Long cable runs can result in signal degradation due to loss characteristics of the cable At 72MHz there is an average loss of 2dB per 100 feet of cable and at 216MHz an average loss of 5 dB per 100 feet of cable A 3dB loss means half of your power has been lost However
6. See page 12 for more information O Lo o Q c 9 9 o o O LR 600 Operation Battery Operation To set up the unit for battery operation see page 8 To operate the unit on batteries move the Power switch to the ON position Alkaline battery operation Note that the power supply is not connected and the Battery switch is in the ALK position To charge the optional rechargeable batteries connect the unit to the power supply or an exter nal battery then place the power switch in the ON or CHG position DO NOT ATTEMPT TO CHARGE ALKALINE BATTERIES Charging mode Note that rechargeable NiMH batteries are installed and the Battery switch is in the NiMH position The battery icon cycles through low mid and high level displays to indicate charging IMPORTANT You must place the Battery switch in the appropriate position for the type of batteries you will be using If you are using alkaline batteries and the switch is in the NiMH position the unit will attempt to charge the batteries when connected to a power supply or extemal battery Attempting to charge alkaline batteries can result in permanent damage to the unit and the batteries may explode It takes 13 hours to fully charge the batteries When the batteries are charging the battery icon changes from Y to Y to full and then repeats to indicate charging When not using the unit it is advisable to leave the unit connected to the power supp
7. it is better to suffer coaxial power loss than to try to shoot your signal through obstacles Obstacles especially metal can create drop outs or reflections of your signal that will result in poor listening conditions NOTE There are many varieties of 50 Ohm RG58 and RG8 cables You may purchase a cable that is better or worse than this value Please check with the cable vendor or manufacturer for exact specifications SQ Summary Improves noise perform ance by at least 20dB SQ is NOT compatible with older version Listen products SQ is NOT compatible with other manufacturers products SQ is NOT squelch To work properly SQ must be enabled for both the transmitter and receivers SQ can be disabled to per mit operation with older Listen products or other manufacturers products 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 Listen to the audio through the headphone or via the speaker Choose a channel with the least amount of interface Unless you are interfacing with an existing nar rowband transmission system always use a wide band channel If you are using multiple channels follow this process a Same Space If
8. 3 1kg Shipping Weight 10 lbs 2 8kg Micophone Stand Mounting Nut 16mm Temperature Operation 10 to 40 C 14 to 104 F Environmental Temperature Storage 20 to 50 C 4 to 122 F Humidity 0 to 95 relative humidity non condensing Power Off Charge On e O Up O O Channel Extemal O O L Down Power Supply O 115VAC 18VACUL PO O Listed 12VDC or I Seek 8VAC O ALK Power Supply al Battery O CPU Module Select Yo op of Speaker NiMH ar ia UE rr I O I Select l O 8 AA Batteries i O Alkaline or NiMH i L Up rans External cu Volume I Speakers I O Down BNC Extemal Didiialip r p Tweeter igital Pot 9 Recei l eceiver Va 7 RF Board EQ mm pesa Speakers Internal I OI EEES 15 10 Watt Antenna dA peak RMS Mid Range Power Amp SQ On Off Low Mid High O Auxiliary Lt Phono Output gt o Auxiliary o Phono Input O O O 2 J Q 2 Q 3 Quick Reference LR 600 Rear Panel Connections and Controls Q O c o o 9 w x Q 5 Gg POWER ON d id E m i Connect the included power To operate and charge batteries Ihree band equalizer supply here or a 12VDC move to ON position To only used to adjust sound A
9. Make sure the transmitter is on and is operating on the same channel You may need to use an external remote antenna I can see that am receiving a channel on RF signal meter but I cannot hear any audio The adjustable squelch may be set too high See page 15 LR 600 Troubleshooting When the transmitter is off hear noise The adjustable squelch may be set too low See page 15 Fm trying to find a channel that does not show up on the display The channel may be locked out See page 12 Will the unit charge the batteries when the power supply is plugged into the unit Yes as long as the power switch is in the ON or CHG position Can use this product in a motor vehicle Yes the LR 600 is designed to work with 12VDC from any vehicle See page 7 for more information The unit does not sound good Make sure SQ is on or off on both the transmitter and the LR 600 Verify the equalizer has been adjusted properly Set to flat center position to start with See page 18 for more information Make sure the transmitter and LR 600 are on exactly the same channel Make sure the LR 600 is not too close to the transmitter The rechargeable batteries don t last very long They may need to be replaced if they have been used for over 18 months Make sure the charger stays on for the full 13 hours to fully charge the batteries At high volume levels the batteries will not last very long Make sure you are using quality long life NiMH ba
10. bracket with leatherette cover LA 201 Power Supply 2 18 in 4 5mm x 1 38 in 35mm screws with hol low wall anchors Optional Accessories 1 16mm nut for mounting the LR 600 on a micro h and See page 26 27 phone s Warranty Card User Manual i Listen M and the Listen Logo are registered trademarks of Listen Technologies Corporation LR 600_2004_08_02 2004 Listen Technologies Corporation All Rights Reserved Table of Contents Architectural Specifications aaaaa aaa aaa aaa aaa aaa aaa ca 2 SDECI ICBEIOTIS zie ede pese AAA ka tee dA ad AGR ele ot s 2 Block Diagram decile enu A tet autos ti Pose dios 3 Quick Reference sis POIDS ELI PI veras AI 4 Powering Instructions opos e ae ONG qd ILS 5 Internal Batteries A RAUA 6 Antenna Options ead be gia Seed daw beeing 5 rl a pda 8 Setup amp Programming 6 2 0 e s 9 Squelch Adjustment i sore Re ERE bere eee Ren eee ds 11 Extermal Speaker 3 ce n ertt oat eed acie AGA vd e ete od e E PE 12 Auxiliary Input and Output aaen e aR eee ee 12 Operation comer as DUIS I ERE TUERI CE A VI a ERR VS 13 Battery Options soccer uten at Peru EN E erue 14 Mounting amp Carrying Options uaaaaaaaaaaaaaaa aaa ene eens 15 RF Reception Maximization Strategies ele 17 DistencSQ BE oe eiat esce ott ous Der oU ii Er SE m CUL 18 Coaxial Cable 44 ii REPRE ME eR d eed qe ends 18 CGhannelbSelection 3 eu E ee ap ege t bte te tutes 19 72 MHz Frequency Compatibility Table
11. service technician Warranty does not cover normal wear and tear on the product or any other physical damage unless the damage was the result of a manufacturing defect Listen is not 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 purpose will comply with applicable laws and regulations The terms of the warranty are governed by the laws of the state of Utah USA Listen will only accept returned products with prepaid shipping and with a return authorization number To receive a return authorization number call 1 800 330 0891 or 1 801 233 8992 Please see www ListenTech com or contact Listen for complete warranty details 25 Q O gt lt o o je o o O o o o e 9 P o O 26 Optional Accessories Other Stationary Unit Antennas LA 122 Universal Antenna Kit The single solution for all of your indoor remote antenna needs Includes 72 and 216MHz components flexible and rigid dipoles and monopole radials hardware for multiple mounting configurations and 25 feet 7 6m of RG58 coax cable Batteries 1 COMMERCIAL GRADE LA 362 NA RECHARGE A E A NiMH Rec
12. you are using multiple transmitters in the same space the most number of channels that will work simultaneously is six at 72MHz and three at 216MHz With all of the transmitters off listen for interference on all the wide band channels via the headphone jack on a Listen receiver Using the frequency compatibility tables on pages 12 13 eliminate any channels that have noticeable interference Now choose the channels with the widest channel spacing It is recommended that adjacent channels be spaced at least 300KHz If there is no interference the following channels are recommended A C E I J and H for 72MHz and channels 2A 2K and 2V at 216MHz Distributed Spacing If you are using transmitters that are spread out over space you can achieve more simultaneous broadcast channels However it is critical that your receiver s be located as close to its transmitter as possible You can use adjacent channels see frequency compatibility tables on pages 12 13 in this case as long as the adjacent channel transmitter is at least 5096 fur ther 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 trans mitter on channel D should be at least 150 feet away It is highly recommended that after channel selection has been achieved you lock the channel so that it cannot be changed by the user To accomplish LOCK on the LT 800 press both the UP and DOWN b
13. 8 729 72 9250 9 9 9 E9 3437 72 9500 38 9 72 9750 20 20 20 EO 35 39 74 6250 38 33 33 ES 36 40 74 6500 an 20 74 6750 34 34 34 EA 37 42 74 7000 38 43 21 o 74 7250 35 35 35 5 39 44 74 7500 45 22 747750 36 36 36 6 40 46 75 2250 37 37 37 7 41 47 75 2500 48 28 76 2750 38 38 38 8 22 49 75 3000 J J J mao 24 P 75 3250 39 39 39 9 55 51 75 3500 52 25 75 3750 20 20 20 0 45 53 75 4000 R R R R R 54 26 a 75 4250 21 21 21 RI 46 55 75 4500 56 27 75 4750 22 22 22 R2 47 57 75 5000 E E F F F 48 58 28 J 75 5 75 5050 28 28 28 F3 49 59 75 5500 60 29 75 5750 24 24 24 F4 50 61 75 6000 S S S S S 62 30 K 75 6 75 6250 25 25 25 5 Gi 63 75 6500 64 31 75 6750 26 26 26 S 82 65 75 7000 G 6 6 G G 53 66 32 L 75 7 75 7250 27 27 27 G7 54 67 75 7500 68 33 75 7750 28 28 28 G8 5569 75 8000 T T T T LOO 34 M 758 75 8250 29 2 29 19 56 71 75 8500 02 35 75 8750 30 30 30 T0 57 73 75 9000 H H H H H 58 74 36 N 75 9 75 9250 31 31 31 HI 59 75 Parenthesis indicate T35 and T20 narrowband 20 7595 3 3 3 5 76 37 NOTE Wideband frequencies in highlighted rows j 60 77 216MHz Compatibility Chart Frequency Phonic Light MHz Listen Ear Comtek Phonak Williams Gentner eS AVR Speed 216 0125 1A Col NOI 216 0250 2A 41 216 0375 3A 216 0625 1B 216 0750 2B 42 216 0875 3B 216 1125 1C 216 1250 De 43
14. Controls Back Panel Internal External Antenna Alkaline NiMH Batteries SQ Enabled Disabled User Controls Top Panel Volume UP DOWN Channel UP lockable Controls User Controls Back Panel Power Charging channel UP DOWN SEEK channel SEEK and volume are lockable Unit can be programmed so that only desired channels are displayed Squelch can Programming be adjusted for sensitivity Channel and volume can be locked Indicators LCD Display Backlit indicates channel RF signal strength lock status programming Power Supply Type In line power supply Listen part number LA 201 Power Supply Input 120VAC 60 Hz 19 Watts maximum continuous Power Supply Output 5VAC 1A Power Supply Connector 02 in OD x 01 in ID 6 0mm x 2 5 mm barrel type Compliance UL Listed Optional Battery Eight AA batteries alkaline or NiMH Optional Battery Charging Fully automatic 14 hours 12 hours alkaline LA 361 10 hours NiMH rechargeable LA 362 mid volume music programming volume and audio type will effect battery life Battery Life Listen batteries Dimensions 11 0 in x 9 0 in x 7 0 in WxDxH 27 9cm x 22 9cm x 17 8cm with bracket handle in up position Handle stands off unit 2 0 in 5 1cm Dimensions without bracket handle 9 0 in x7 0 in x 7 0 in WxDxH 22 9cm x 17 8cm x 17 8cm Physical Unit Weight 6 2 lbs 2 8kg Unit Weight with LA 201 Power Supply 7 6 lbs 3 5kg Unit Weight with eight AA batteries 6 8 lbs
15. UXILIARY CONNECTORS power source such as a charge batteries move to CHG quality to meet your To listen to a CD TV etc vehicle power adapter position See page 7 needs through the speaker connect to AUX IN to route audio to an external device such as a Ses recorder or mixer connect to Charge Ae On AUX OUT jarag Power EQ O e 5 MEET E Low Mid m eO ANTENNA SELECT se Wm Baki SO MODE If you connect an external Tae When ON activates the Listen antenna move this m 4 switch to EXT If no Channel LT Trios cena den SQ Mode improving noise extemal antenna is used onis o e o performance by better than 1 i Place BATTERY switch in ALK for Q 20dB Ti ttel t the switch should be on Transmitter must also nn ht Y have SQ enabled to use this RNING Do not attempt to charge mode EXTERNAL ANTENNA If you need more receiving range connect an external antenna here Antennas are available from Listen 5 INT LCD PANEL s koder wy See below AND SERIOUS INJURY COULD OCCUR IF YOU ATTEMPT TO S Hos E AES 9 CE BATTERY COMPARTMENT CHANNEL UP DOWN and EXTERNAL SPEAKER Remove access panel to SEEK Connect an external change batteries Unit holds Use to select and search speaker here eight optional AA batteries channels or to program the
16. available transmission You may also use the Channel UP and DOWN buttons on the rear panel to step through the channels available to the LR 600 Receive channels may be found using the CHANNEL SELECT button on top of the unit the Seek button on the rear panel or the Channel UP DOWN buttons on the rear panel LR 600 Mounting Carrying Options The U bracket that comes standard with the LR 600 can be used to permanently mount the unit set the unit at an angle on a desktop or be used as a carrying handle To change the position of the U bracket do the following Loosen the two screws the large knobs on both sides of the LR 600 Note that you have to loosen the screws considerably to allow the bracket to swivel This is because the bracket is keyed to prevent slipping when in use Rotate the bracket to the desired position Retighten the two screws The knobs on either side of the unit must be loosened considerably in order to swivel the U bracket to a different position O Lo O o 5 5 Qo lt O c LR 600 Mounting Options You have the option to mount the LR 600 on a microphone stand or you can mount the U bracket directly to any vertical or horizontal surface MICIopnone Stand Mounting Locate the microphone stand nut in the included poly bag or use the nut that comes with the microphone stand Remove the leatherette handle cover Position the U bracket so that it will hold the LR 600 upr
17. c D 10 C05 E ON lt I N O O 3 5 Q ie x Q gt Q 216 1375 3 216 1625 1 216 1750 2D 44 216 1875 3D 6 2125 E 6 2250 2E 45 6 2375 3E 6 2625 F 6 2750 2F 46 6 2875 3F 6 3125 1G 6 3250 26 47 6 3375 3G 216 3625 1H 216 3750 2H 48 48 48 F 8 15 216 3875 3H 16 16 C18 N18 216 4125 lJ 17 17 C21 216 4250 216 4375 216 5125 216 5250 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 216 9750 216 9875 14 C09 NO9 11 C12 N12 N N2 N2 NINE NM NINI N NOTE Wideband frequencies in highlighted rows 21 je fs e le ka o o Ko gt 9 22 LR 600 Troubleshooting The unit does not power up or it has stopped operating Ensure the power supply is connected properly Your batteries may be dead Replace or recharge the batteries The audio is muted occasionally The unit s squelch sensitivity a smaller number in the squelch setting may be too high Either improve the RF signal path a remote antenna may help or adjust the squelch setting for less squelch sensitivity hear noise comi
18. done don t press a button for 10 seconds and the unit will return to normal operation In the example above only three channels are used Therefore you will need to lock out 54 channels from use Press the Channel UP and DOWN buttons at the same time to enter Program mode shown by the PGM icon While in Program mode press SEEK to lock out a channel that you do not want available to the end user L O will show on the display LR 600 Squelch Adjustment When the transmitter is not turned on the squelch function mutes the audio so that random noise is not heard through the speaker The squelch function can be programmed for more or less sensitivity When the squelch function is programmed for more sensitivity you sacrifice transmission range in exchange for more reliability of the squelch function When the squelch function is programmed for less sensitivity you achieve greater transmission range in exchange for less reliability of the squelch function This means that even if the transmitter is off you may hear noise in the speaker You can try different squelch settings for your application o Q c o Oo gt gt 2 3 e El Examples for setting the squelch sensitivity high You absolutely don t want the unit to have noise when the transmitter is off The transmitter is close to the LR 600 Examples for setting the squelch sensitivity low It doesn t matter if the user hears the noise if the transmitt
19. er is turned off The transmitter is located a long distance from the LR 600 The adjustable squelch can be programmed from 0 no squelch to a maximum of 20 highest sensitivity The default setting is 3 To program the squelch setting do the following Turn the unit off Press and hold the SEEK button Turn the unit on Release the SEEK button The squelch setting is shown on the display Default is 3 Use the UP and DOWN buttons on the rear panel to select the setting you want Note the RF meter still operates giving you relative RF power from the transmitter When you are done press SEEK to store the new squelch setting While in Squelch programming mode channel UP DOWN buttons are used to change squelch sensitivity 03 is the gt factory default Use Seek to enter Squelch programming mode and to save settings see instructions above 11 gt 9 E 5 C Y e Q wn e o x Lu LR 600 External Speaker You can connect an external speaker to the LR 600 Make sure that the speaker is 4 Ohms or greater The Listen LA 316 speaker provides the same look as the LR 600 An extemal speaker 4 Ohms or greater may be connected to the speaker terminals below the LCD panel LR 600 Auxiliary Input and Output Additional audio can be mixed with the receive audio from the transmitter To accomplish this use the Auxiliary Input connectors Simply take the audio output of your device such a
20. h Consider using a gain antenna such as a Yagi type antenna 216 MHz only CAUTION When installing antennas ensure the antenna is clear of power lines NOTES If the RF signal to the LR 600 is too high the audio will be distorted This may happen if you are within 40 feet of the L 1 800 transmitter Consider reducing the output power of the transmitter or optionally removing the antenna on the LR 600 there is sufficient internal antenna inside the LR 600 to receive an adequate signal from the transmitter Coaxial cable connectors and optional antenna mounting kits are available from Listen Visit our website for details 17 Q a 3 N 5 Q a Z a o Oo e c o Ko O O 9 X O O ob z jc 72 e e EL Listen SQ Improving Your Listening Experience We are accustomed to listening to low noise high fidelity audio delivered via CD DVD etc FM radio systems such as those made by Listen have more inherent noise compared to most sound systems To reduce noise of our systems Listen uses a noise reduction technology called ListenSQ Both the transmitter and receiver must have the SQ feature enabled to achieve the desired results SQ is available on new Listen systems including the system you received in this shipment If you are planning to use this product with older Listen systems that do not have Listen SQ or equipment not manufactured by Listen you should disable Listen SQ
21. hargeable AA Batteries pkg of two LA 362 WERE 90 Degree Helical Coaxial Dipole Antenna Rear Mount LA 116 LA 123 for 72MHz or LA 124 for 216MHz Ground Plane Antenna LA 107 High Capacity AA Alka line Batteries pkg of two LA 361 Optional Accessories continued BNC Adapter BNC Connector BNC Connector LA 121 for RG58 for RG8 LA 127 LA 128 RG58 Coaxial RG8 Coaxial Installation of Cable Cable BNC Connectors LA 112 LA 113 LA 114 Expansion Speaker Expansion Speaker LA 316 27 oO e O gt Q gt O O 4 74 9 D 0 28 Li fe n e www ListenTech com Listen Technologies Corporation 8535 South 700 West Suite A Sandy Utah 84070 2515 USA Telephone 1 801 233 8992 Toll Free North America 1 800 330 0891 Fax 1 801 233 8995 E mail info ListenTech com
22. ight on the microphone stand Screw the nut onto the stand and tighten with a wrench Vertical Horizontal Permanent Mounting Remove the U bracket by loosening the two screws on both sides of the LR 600 Be careful not to lose the washers Using the two self tapping screws and if necessary hollow wall anchors mount the bracket to any surface Position the LR 600 into the bracket and tighten the two screws Maximizing RF Reception Strategies For proper and dependable operation the LR 600 should receive a strong and con sistent signal from the originating transmitter The following strategies should be used to maximize this signal a When designing and installing your system keep in mind that the location of both the transmitting and receiving antennas is critical to maximizing signal strength b Eliminate or minimize obstructions between the transmitting antenna and the receiving antenna c Minimize the distance between the transmitting and receiving antennas d Move transmitting and receiving antennas away from metal objects e Consider using a remote antenna instead of the internal antenna This will allow you to place the antenna at a location with improved line of sight to the transmitting antenna You will need to be careful about the type and length of coaxial cable see the note above f Place the transmitting antenna as high as possible g Orient both transmitting and receiving antennas vertically
23. ing dimensions 0 098 in 2 5 mm inside diameter 0 217 in 5 5 mm outside diameter 0 374 in 9 5 mm length Wire the connector so the tip is positive Connect to a 12VDC battery or 12VDC output of a power supply O z 2 Q 0 E O ea 5 E 9 LR 600 Internal Batteries Internal Batteries If you are using the LR 600 with internal batteries do the following Open the battery compartment by removing the thumbscrew and then removing the cover Slide the battery holder out of the battery compartment Install eight AA alkaline or NiMH batteries with polarity noted on the battery holder Replace the battery holder and secure the battery compartment cover IMPORTANT Slide the battery switch to the alkaline or NiMH battery position depending on the battery type you are using ALK NiMH Ext int ALK NiMH Antenna Battery Antenna Battery SE Place the Battery switch in the ALK Place the Battery switch in the NiMH position if you are using alkaline position if you are using rechargeable batteries NiMH batteries IMPORTANT You must place the Battery switch in the appropriate position for the type of batteries you will be using If you are using alkaline batteries and the switch is in the NiMH position the unit will attempt to charge the batteries when connected to a power supply or extemal battery Attempting to charge alkaline batteries can result in permanent damage to the unit and the batteries ma
24. ly to keep the batteries fully charged This will not damage the batteries When the batteries are fully charged the unit will automatically shut off To reactivate the unit turn the unit OFF and then back ON During battery operation if the battery icon begins flashing on the Low level one bar showing your batteries are almost exhausted and shutdown is imminent Connect to a power supply or replace the batteries LR 600 Operation Volume Adjustment Adjust the volume setting for a comfortable level by pressing the VOLUME UP and DOWN buttons on the top of the unit The volume setting a number between O and 26 will be shown on the display To lock the volume setting see page 9 Equalization Adjustment The purpose of the equalizer is to adjust the sound quality to your specific needs and taste Use a small screwdriver to adjust the LOW MID and HI positions These correspond to the following center frequencies 250 Hz 1 kHz and 4 kHz Adjust to the center position to make the frequency response flat Channel Selection To select a program channel press the CHANNEL SELECT button on the top of the unit To program this function see page 14 If channels have not been programmed the unit will step through all available channels as you repeatedly press the CHANNEL SELECT button If channels have been programmed you may wish to use the Seek button on the rear panel instead Pressing Seek will cause the LR 600 to search for an
25. nd hold the SEEK button for 5 seconds The padlock icon will appear in the display To unlock the channel selection function press and hold the SEEK button until the padlock icon goes out A padlock in the display means the channel is locked and a new channel cannot be selected If the padlock icon is flashing both the channel and volume settings are locked see below Locking Both Volume and Channel Selection Once the channel and desired volume have been set you can lock both functions as follows Press the SEEK button and then the UP button on the rear panel The PADLOCK icon will flash To unlock both the volume and the channel selection function press the SEEK button and then the DOWN button on the rear panel Setting the SQ ae x d Press Seek and then the Channel UP button to lock volume and channel Press Seek then DOWN to unlock LR 600 Setup and Programming continued Setting the SQ Switch For more information on SQ see Listen SQ on page 18 The SQ function improves the noise performance of the LR 600 by at least 20dB To use this function the transmitter must also be a Listen brand transmitter with SQ D E E 9 O 9 a o 2 0 Y To use the SQ function do the following Verify the transmitter has SQ and the SQ function is turned on Move the SQ switch on the back of the unit to the ON position If you are using the LR 600 with another brand transmitter or if you don t want t
26. nel Example 2C 1 and 3 as left digits Narrow Band Channels Examples 1A 3R 19 O 3 je 5 o e o O 9 S 72MHz Compatibility Chart Frequency Phonic MHz Listen Ear Comtek Phonak Wiliams Gentner Telex Drake gt O Q O O N I N N 72 0250 1 1 1 Al 1 1 72 0500 1 72 0750 2 2 2 A2 2 3 72 1000 A A A A A 13 4 2 A 72 1 72 1250 3 3 3 AS 14 5 72 1500 amp 3 72 1750 4 4 4 Ad 5 7 72 2000 K K K K K 4 B 722 72 2250 5 5 5 K5 16 9 72 2500 ao 5 72 2750 6 6 6 K6 7 11 72 3000 B B B B B 18 12 6 C 72 3 72 3250 7 7 7 B7 19 13 72 3500 12 7 72 3750 8 8 8 B8 015 72 4000 N N N N N 16 8 D 72 4 72 4050 9 9 9 No LID 72 4500 18 9 72 4750 0 0 0 NO 6219 72 5000 C E C c 23 20 10 E 725 72 5250 1 1 1 Cl Q4 21 72 5500 Q2 1 72 5750 2 2 2 C2 5 33 72 6000 6 O Q O O 24 2 F 72 6 72 6050 3 3 3 O2 26 25 72 6500 26 3 72 6750 4 4 4 4 27 72 7000 D D D D D 28 4 G 72 7 72 7250 5 5 5 D5 29 72 7500 30 5 72 7750 6 6 6 D 30 31 72 8000 E Bl P E P 32 6 H 72 8 72 8250 7 7 7 P7 31 33 72 8500 34 7 72 8750 8 8 8 PS 32 35 72 9000 E E E E E 0339 1
27. ng from the receiver You may have inadequate RF signal strength Adjust the positioning of the antennas Make the transmitter is on high power You may be experiencing interference try a different channel Make sure the transmitter and receiver are on the same channel The squelch sensitivity may be too low Try setting it higher See page 15 The channel is often accidentally changed Lock the unit on channel by pressing and holding the SEEK button for five seconds The padlock symbol is illuminated on the LCD There is no audio Make sure the transmitter and receiver are on the same channel Make sure the volume is turned up Make sure the squelch adjustment is set correctly The audio is distorted Make sure the transmitter and receiver are on the same channel Make sure that the SQ switch is ON or OFF for both the transmitter and receiver Make sure the audio level is not set too high Make sure you are not too close to the transmitter The level of my Auxiliary device CD player etc is low Adjust the output volume at the auxiliary device you are using I cannot change channels The unit is locked on channel Press and hold the SEEK button for five seconds cannot change the unit s volume The volume control is locked the flashing padlock icon indicates this Press and hold the SEEK button and then the DOWN button to unlock cannot pick up the transmitter Make sure the antenna switch is in the correct position
28. o use the SQ function move the SQ switch to the OFF position To use Listen SQTM slide the switch to the ON position Your transmitter s SQ function must also be on Programming the Channel Select Button The channel select button on the top of the unit is designed to give users the ability to choose between different channels If you don t want to give users this function it is recommended that you lock this feature as described on page 9 If you want to use this function you must program the unit for the channels you are using For example you are using 72 MHz channels A E and I You would only want the LR 600 to receive on channels A E and I When the Channel Select button has been programmed the unit will select A the first time the user presses the button when the user presses the button suc cessively E will be selected then I then A again Volume Note The UP button on the rear panel and Channel Select button on the top of the unit per form the same function for end users To program the unit so that it only receives on certain channels do the following Press the UP and DOWN buttons together and release The PGM icon is displayed Press the UP or DOWN button to select channels When you get to a channel that you don t want displayed press the SEEK button The L O icon will be displayed indicating the channel is locked out and will not be displayed Repeat for all channels that you want locked out When
29. ouraged to try to correct the interference by one or more of the following measures 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 This equipment has been certified to comply with the limits for a class B computing device pursuant to FCC and IC Rules In order to maintain compliance with FCC and IC regulations shielded cables must be used with this equipment Operation with non approved equipment or unshielded cables is likely to result in interference to radio and TV reception The user is cautioned that changes and modifications made to the equipment without the approval of the manufacturer could void the user s authority to operate this equipment Warranty Listen Technologies Corporation Listen warrants the LT 800 Stationary Transmitter 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 This warranty is only available to the original end purchaser of the product and cannot be transferred Warranty is only valid if warranty card has been returned within 90 days of purchase This warranty is void if damage occurred because of misuse or if the product has been repaired or modified by anyone other than a factory authorized
30. r receive signal is noisy or weak you may need to use an external antenna External antenna There are three options for the external antenna Quarter wave helical antenna This antenna mounts directly to the back of the LR 600 Order these part numbers from Listen LA 123 72 mHz LA 124 216 mHz Remote antenna See page 17 RF Reception Maximization Strategies With a remote antenna you ll be able to get the best reception by strategically placing the antenna Antenna options available from Listen LA 122 Universal Antenna Kit 72 and 216 mHz LA 123 LA 124 72 216 mHz to be mounted remotely LA 107 Ground plane antenna 216 mHz Wire antenna You can build a wire antenna by soldering a wire to the center conductor on a BNC connector Recommended lengths for wire antennas 72 mHz 39 in 1 m 216MHz 13 in 0 32 m LR 600 Setup and Programming Channel Selection Using the channel select buttons UP and DOWN buttons on the rear panel or the SEEK button select the desired receive channel For more information see Channel Selection on page 19 e a Lo Qo y e Q Q 3 3 2 NK NMN Antenna Battery A 1 Channel Lis ten E v Use Channel UP DOWN or Seek to select a receive channel Locking Channel Selection If you don t want the user to have the ability to change the channel it is highly recommended that you lock the channel select function This is accomplished as follows Press a
31. s a CD player TV or computer and connect it to the two phono connectors on the rear panel of the LR 600 If you want to take the audio out of the LR 600 and record it or send it to a mixer use the Auxiliary Output phono connectors to connect to your recorder or mixer LR 600 Operation To turn the unit on move the power switch to the ON position LCD Display Once the unit is on the LCD display will illuminate Notice that when the unit is in operation on the power supply the LCD backlight will remain lit continuously When on battery power the backlight will remain lit for 10 seconds after any button is pushed This is designed to save battery life Signal Strength Channel or Volume Padlock Icon Battery Channel Volume Control When the volume control is pushed the number indicates the volume setting between 0 and 26 Otherwise the channel is shown The channel should be the same as the transmitter Battery The battery icon shows the amount of battery life remaining in full 4 14 and flashing increments indicating low battery When charging the battery icon changes through all of these states to show it is charging Signal Strength Just as on your cellular telephone the dots above the Listen logo show the signal strength coming from the transmitter Padlock Icon If illuminated indicates the channel selection function is locked If flashing indicates the channel selection and volume control functions are locked
32. tteries have rechargeable batteries in the unit but they aren t recharging Make sure the Battery switch is set to NiMH The unit will not charge batteries when the switch is in the ALK position The unit won t work on batteries Make sure you are using charged batteries Check the battery polarity of the batteries in the battery holder Make sure the battery holder connector is secure If you are still having problems after checking the above items call Listen for help We are available from 8 AM to 5 PM Mountain time Monday through Friday at 1 800 330 0891 or 801 233 8992 or you can e mail us at support listentech com 23 e e 2 gt e 9 Q en o E um je eo O O LL 24 FCC Statement This equipment has been tested and found to comply with the limits for a class B digital device pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is enc
33. uttons simultaneously for 5 seconds Repeat the process to unlock Notes in regard to using 72MHz and 216MHz systems i ii 72MHz in a secondary frequency band This means that other transmitters are licensed to use these frequencies Thus you may experience interference from paging transmitters and other types of transmissions You will need to find a clear channel by listening to all the wide band channels 216MHz is a primary frequency band and no other types of transmissions are authorized to use it Thus you will find the highest probability of clear channels in this band However you may experience intermodulation of the TV Channel 13 aural carrier if there is a channel 13 transmitter in your area and you are close to the transmitter If you cannot find a clear channel in 216MHz band due to channel 13 it is recommended that you switch to a 72MHz system Wide Band Recommendation Listen recommends that you always use a wide band channel unless you need to be compatible with existing narrow band receivers from other manufactur ers Wide band channels have lower noise than their narrow band counter parts At 72MHz The LT 800 at 72MHz operates on 17 wide band channels and 40 narrow band channels Letters Wide Band Channels Example E Numbers Narrow Band Channels Example 32 At 216MHz The LT 800 at 216MHz operates on 19 wide band channels and 38 narrow band channels 2 as left digit Wide Band Chan
34. y explode LR 600 Internal Batteries continued For NiMH battery operation you must charge the batteries for 13 hours before use To charge the batteries plug the unit into the power supply or external 12VDC supply and move the power switch to either CHG or ON The batteries will charge in either position ALK NIMH Antenna Battery In Charge mode the battery symbol will cycle between low mid and full Mmmm mm m Powering the unit ON Turn the unit on by sliding the power switch to the ON position The LCD will activate if using the LR 600 on the power supply the LCD backlight will activate and remain on If you are using the unit on batteries the LCD backlight will operate for 12 seconds after any button is pressed and then dim to conserve battery life Antenna A r Channel v mm 2 Q Uy Q 2 o eo 7 O Q O e c o lt LR 600 Antenna Options The LR 600 has two antenna options internal or external To use the internal antenna move the antenna switch to INT To use the external antenna move the switch to EXT ALK NiMH a o Antenna Battery NA Internal antenna As shipped your LR 600 is set up for use with its internal antenna The internal antenna will work well for a large number of uses but it cannot be positioned for best coverage When using the LR 600 s internal antenna make sure the antenna switch is in the INT position If you
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