User`s Manual - Performance Audio
Contents
1. 62 Troubleshooting axati a e e ERES 64 Compliance Notice 42 daa can sia ate ee es Aaa eee Vasa ee ARR ete eee 100 0 67 FCG Statement es leue ed nc SER MER dex aep m eee e Re 68 WAI cert cet c ey e E m UPC me a C Ae pcdes tne 69 Optional Accessories onza cer dr re e ete Pa 6 000 00366 EGG 4 ch aw 2g Eee the 70 t e O s a Y 7 9 Oo fe 2 0 2 a eo c 9 z e 2 O o Q o o o kj LR 500 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 programmable to electronically lock out unneeded channels The receiver shall be capable of seek ing channels The device shall have an adjustable squelch The device shall have an audio frequency response of 63Hz to 15KHz 3dB at 72MHz or of 63Hz to 10kHz 3dB at 216MHz The device will incorporate a stereo headset jack that allows the user to plug in either a mono or stereo headset The device shall incorporate an LCD display that indi cates channel channel lock or lock status battery level low battery battery charging and RF signal strength The receiver shall incorporate automatic battery charging circuitry for recharging of NiMH batteries The Listen LR 500 is specified Specifications Specification RF Frequency Range LR 500 072 LR 500 216 72 025 75 950 MHz 216 025 216 975 MHz2. My batteries are not charging Make sure the battery switch is in the NiMH setting and that you are using NiMH Nickel Metal Hydride batteries Make sure you are using only a Listen supplied charging unit or transformer Never try to charge alkaline or NICAD batteries I want to run the unit from a wall transformer Simply plug a Listen approved transformer LA 202 to the CHG PWR connector on the side of the unit Batteries do not need to be installed when operating the unit with a wall transformer however if you have NiMH batteries installed and the BATTERY select switch is set to NiMH the batteries will charge while the unit is being used It s confusing for users to have 57 choices when switching between channels Use the programming feature only available in the LR 500 to limit the number of channels accessible by users Compliance Notice 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 O O 3 9 2 o r4 o 67 FCC Statement 68 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
3. User s Manual LR 500 Programmable Display Receiver LR 400 Display Receiver LR 300 Receiver 216 DISPLAY RECEIVER PROGRAMMABLE DISPLAY RECEIVER Listen www ListenTech com Listen Technologies Corporation 8535 South 700 West Suite A Don t miss a single sound Listen 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 Listen and the Listen logo are registered trademarks of Listen Technologies Corporation 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 problems 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 D o 2 2 o E o 2 o E 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
4. display shows receive level channel battery status PROGRAM mode whether a channel is locked and whether a channel is locked out from selection PROGRAM mode See close up on page 10 Adjustable Squelch The default factory preset for squelch is 03 See page 18 for Squelch programming information SEEK button allows the user to change channels or to lock on a channel Use UP and DOWN buttons to select a channel Press and hold both buttons for 5 seconds to enter PROGRAM mode The PGM icon will appear in the display To exit PROGRAM let unit sit idle for 5 seconds Liste PROGRAMMABLE DISPLAY RECEIVER Quick Reference LR 500 Inside Access Door Battery Select SQ 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 You should tum SQ off if any of your receivers do not have SQ LR 500 Top of Unit LED indicators Steady Red Normal operation Slow Flashing Battery is low Slow Flashing while charging Unit is charging t a O D o n z2 A 9 1 3 o oO 3 5mm Input J ack ON OFF and VOLUME control dial A Listen earpiece or headset rotate the dial counter clockwise to connects here turn unit on and increase volume Quick Referenc
5. 13 hours Listen recommends that you allow the charger to complete its full cycle every time for maximum battery life IMPORTANT DO NOT ATTEMPT TO CHARGE ANY TYPE OF BATTERY OTHER THAN NiMH NICKEL METAL HYDRIDE with your Listen equipment Alkaline batteries may explode when connected to a charger Other risks of charging non NiMH batteries include destruction of property or fire IMPORTANT In order to charge NiMH batteries the BATTERY SELECT switch in your Listen product must be set to the NiMH setting Use a pen or small screwdriver to move the switch located in the battery compartment to the proper position 52 LR 300 Charging Batteries continued During the charge cycle the red LED on top of the Listen product will flash slowly When charg ing 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 T O o 9 gt e Q 5 Q 2 c 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 2096 of its charge per month NOTE Listen uses 1800mAh milli Amp hour constant current NiMH Nickel Metal Hydride batteries These may be purchased from your Listen dealer ask for part number
6. If locked use a pocketknife or small screwdriver to unlock the door locks on both sides of the unit To unlock the door rotate the lock 1 4 turn counterclockwise ri gt o 1 a Lo wn 1 c O fe 5 PWRICHG PWRICHG Grip the two tabs with your thumb and index finger and pull the door downward Do NOT place batteries in the unit yet Select Battery Type See diagram on page 29 You have two choices NiMH and Alkaline The unit is shipped with the switch in the Alkaline posi tion Use a pen or small screwdriver to select the battery type CAUTION If you are using any battery type other than rechargeable Nickel Metal Hydride NiMH batteries make sure the Unlocked Locked BATTERY selection switch is in the alkaline position 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 charge the batteries Charging non Nickel Metal Hydride batteries may result in physical harm destruction of property and or fire 31 LR 400 Setup Instructions continued Set SQ switch The SQ switch is inside the battery compartment next to the Battery Select switch The unit is shipped with SQ in the ON position To turn it off use a small screwdriver or pen to slide the switch to the OFF position to the right See page 58 for more information on
7. Listen and the Listen Logo are registered trademarks of Listen Technologies Corporation Receivers_2004_06_08 2004 Listen Technologies Corporation All Rights Reserved Receivers Table of Contents LR 500 Users Manual Voir et 3 ER 500 Table of Contento is A iaa E 5 LR 400 User s Manual_ 23 LR 400 Table of Contents 423 c oen da eats 25 LR 300 User s Manual_ 41 LR 300 Table of Contents o a pa RT NN 43 Supplementary Information 0 00 cece cee ect eA 55 GharnebSelecti n 225 IY LR ROME PEE AE RR Uer c ede aid 56 Listen SOT ce 0t leise LCD SUR OmU CU SS sua MUI E EI dw ss 58 RF Reception Maximization Strategies lee eee 59 72 MHz Frequency Compatibility Table 60 216 MHz Frequency Compatibility Table 62 Troubleshooting mierdas Pee eat ne oe ERAN e PA CE EATER 64 Compliance Notice uti es 67 FOC Statement ota le essa aan tios 68 WALL s i costs c t a TS AS A AE AR Tg ROR 49405 GEA 69 Optional Accessories A A A x5 ee a ed e 70 EF Q oO e O e 1 2 o this page intentionally left blank Listen 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 User s Manual LR 500 P
8. to 50 C 4 to 122 P Humidity 0 to 95 relative humidity non condensing Ki gt o o Lo O H Q 5 27 o O o 2 a x 9 2 c Oo oO Y 28 Quick Reference LR 400 Front LED when lit indicates unit has power ON OFF amp VOLUME control dial 3 5mm Input J ack A Listen earpiece or headset connects here Bun ae Look amp Listen Display shows receive level channel battery status and whether a channel is locked See close up on page 30 DISPLAY RECEIVER LR 400 Top of Unit LED indicators Steady Red Normal operation Slow Flashing Battery is low Slow Flashing while charging Unit is charging 3 5mm Input J ack A Listen earpiece or headset connects here ON OFF and VOLUME control dial rotate the dial counter clockwise to turn unit on and increase volume Quick Reference LR 400 Inside Access Door Battery Select Switch SEEK button allows the user to change channels or to lock ona channel CHANNEL SELECT Use UP and DOWN buttons to select a channel t gt o D o 2 z2 o o 1 3 o L0 Adjustable Squelch The defaultfactory preset for squelch is 03 See page 37 for Squelch programming information SQ Switch Battery Select Switch place in NiMH position ONLY if you are using Nickel Metal Hydride batteries otherwise l
9. 500 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 All other products and accessories are warranted for ninety days 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 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
10. 55 L 4 19 216 7375 3P 30 83 216 7625 R 31 84 216 7750 2R 56 56 56 5 4 216 7875 3R 32 72 C32 N72 216 8125 S 33 73 C33 216 8250 29 57 57 57 13 216 8375 38 34 76 216 8625 T 35 85 216 8750 2T 58 58 58 9 216 8875 3T 36 86 216 9125 1U 37 77 C37 N77 216 9250 2U 59 59 59 17 216 9375 3U 38 88 216 9625 1V 39 79 C39 216 9750 2V 0 0 60 5 216 9875 3V 40 80 C40 N80 63 D e le t N Q fe 2 9 o 2 Q o Q 9 64 Receiver Troubleshooting LR 300 LR 400 LR 500 The receiver has no power Make sure the unit has either fully charged batteries or a Listen approved wall transformer con nected Make sure the VOLUME knob has been rotated to the ON position If this does not work try a different set of batteries Make sure the batteries are installed properly There is no audio Make sure you have turned the volume control up Make sure the earphone is plugged all the way into the jack on the top of the unit Make sure the transmitter is broadcasting an audio source Make sure you re tuned to the same channel as the transmitter see page 56 If the RF signal is too weak the receiver will squelch and mute the audio source move closer to the antenna or make sure the transmitter s output RF power switch is set on FULL LT 800 The audio is distorted Make sure you re receiving on the correct channel Make sure the audio on the transmitter is not turned up too loud this w
11. 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 53 o E 2 N c 9 E e eo gt ml 54 LR 300 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 CHC and plug the wall transformer into a grounded AC outlet You do not need to have batteries installed in the LR 300 to operate it with a wall transformer NOTE If batteries are in the unit ensure that the battery selection switch is set properly as shown on page 47 Please review the information on page 52 for important information regarding battery type and charging The LA 202 wall transformer plugs into the side of your portable transmitter or receiver Supplementary Information Channel Selections deles Se e b an an 6 th c c a 56 Listens cie vss aL O hak A A hha 36 de Se Sew EDDA 58 RF Reception Maximization Strategies 0 eee eect cence ence 59 72 MHz Frequency Compatibility Table 60 216 MHz Frequency Compatibility Table 62 Troubleshooting 222 029 pate EA A die AS 64 Compliance Notice Gildo artis bt rd e 67 PUG
12. LR 300 is specified Specifications Controls 44 Specification RF Frequency Range LR 300 072 72 025 75 950 MHz Number of Channels 17 wide band Sensitivity 6uV typical 1 uV maximum for 12dB SINAD Frequency Accuracy 005 stability 0 to 50 C 32 to 122 F Antenna Uses earphone cable Antenna Connector 3 5mm connector Squelch Automatic on loss of RF signal Compliance FCC Part 15 Industry Canada All system specifications are wireless end to end System Frequency Response 63Hz 15kHz 3dB System Signal to Noise Ratio A weighted SQ enabled 80dB SQ disabled 0dB System Distortion 296 total harmonic distortion THD at 8096 deviation Output Set Up Controls 3 5mm connectors unbalanced OdBu nominal output level 16mW maximum impedence 32 Ohms Alkaline NiMH batteries SQ enable disable User Controls Volume SEEK Channel SEEK is electronically lockable Programming Channel selection can be locked by holding the SEEK button for 5 seconds LR 300 Specifications continued Indicators Physical Environmental Specification Battery Type LR 300 072 Red illuminates when unit is on Flashes when batteries are low Flashes when charging Flashes when locked and user attempts to seek to another channel Two AA batteries alkaline or NiMH Battery Life Listen batteries 30 hour
13. 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 0 to 50 C 32 to 122 F Antenna Uses earphone cable Antenna Connector 3 5mm connector Squelch Programmable in 20 steps Compliance FCC Part 15 Industry Canada All system specifications are wireless end to end System Frequency Response 63Hz 15kHz 3dB 63Hz 10kHz 3dB System Signal to Noise Ratio A weighted SQ enabled 80dB SQ disabled 60dB SQ enabled 80dB SQ disabled 50dB System Distortion lt 2 total harmonic distortion THD at 80 deviation Output continued on next page 3 5mm connectors unbalanced 0dBu nominal output level 16mW maximum impedance 32 Ohms LR 500 Specifications continued Controls Indicators Physical Environmental Specification Set Up Controls LR 500 072 LR 500 216 Programmable channel selection see below alkaline NiMH batteries and squelch SQ enable disable User Controls Volume channel UP DOWN SEEK All controls except volume are electronically lockable Programming LCD Display Unit can be programmed so that only desired channels are displayed Squelch can be adjusted for sensitivity and signal capture control Channel selection can be locked by holding the SEEK button 5 seconds Indicates channel RF si
14. O o Q c o 5 17 lt 2 o 5 joy D mis 18 Squelch Programming Instructions Squelch Programming To enter Squelch programming mode Turn the unit off Press and hold the seek button while still holding seek turn the ON OFF dial to turn the unit on Release the seek button when the Listen name disappears and a two digit display is seen To adjust the Squelch level Use the Channel UP and DOWN buttons to raise or lower the squelch sensitivity settings Lower numbers mean that a less powerful and possibly noisy signal will be heard but you can have a longer range Higher numbers mean that a more powerful signal with no noise will be heard but you may have a shorter range Squelch setting 00 is no squelch this effectively disables Squelching capabilities of the receiver Squelch setting 20 is maximum squelch sensitivity you must have a very strong and stable RF signal for the unit to not engage the squelch feature 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 Note For squelch settings 1 3 the squelch function is slow which allows for maximum transmission range For squelch settings 4 20 the squelch function is fast to ensure little radio noise is heard during the squelch function The Listen SQ feature is not squelch please refer
15. SQ Battery SQ Select 9 3 7 c Q po I yn e F c Select Switch Switch mr Place Batteries in Unit Place two AA batteries in the compartment making note of the battery polarity shown in the battery compartment and again verifying that the BATTERY SELECT switch is in the correct position for the batteries you are using ALK should be selected for all battery types other than NiMH NOTE Listen uses 1800mAh milli Amp hour constant current NiMH Nickel Metal Hydride batteries These may be purchased from your Listen dealer ask for part number LA 362 O 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 32 LR 400 Setup Instructions continued Turn the Unit On Receivers are turned 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 Select Channel s See page 56 for complete channel selection information Set Squelch See pages 36 and 37 for squelch and programming information Earphone Headset jack ri gt o 1 a Lo 3 1 c O fe 5 Re
16. Statement sr ss tek ie nea Gide he adas s seu ads 68 A A RR 69 Optional ACCESOS mi A te e dag 4 p A eg wane 70 uN i o Q o 3 E lt 3 O 55 Channel Selection 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 receivers press and hold seek for 5 seconds Repeat the process to unlock It is important to choose channels that are free from inter ference 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 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 narrowband transmission system always use a wide band channel If you are using mul tiple channels follow this process c is O E o o o c c e a Same Space If you are using 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 Using the frequency compatibility tables on pages 60 63 eliminate any channels that have noticeable interference Now choose the channels with the wide
17. or pen to slide to the OFF position if needed You should tum SQ off if any of your receivers do not have SQ LR 300 Top of Unit LED indicators Steady Red Normal operation Slow Flashing Battery is low Slow Flashing while charging Unit is charging t O D E o z2 A 9 o o L0 3 5mm Input J ack A Listen earpiece or headset connects here ON OFF and VOLUME control dial rotate the dial counterclockwise to turn unit on and increase volume 47 LR 300 Setup Instructions LR 300 Setup Remove the product Remove outer packaging and plastic cover Inspect for physical damage If damage is aparent please contact Listen Technologies Corporation technical sup port for assistance See page 69 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 To unlock the door rotate the lock 1 4 turn counterclockwise Grip the two tabs with your thumb and index finger and pull the door downward Do NOT place batteries in the unit yet Select Battery Type See diagram on page 47 You have two choices NiMH and Alkaline The unit is shipped with the switch in the Alkaline position Use a pen or small screwdriver to select the battery type Unlocked Locked rechargeable Nickel Metal Hydride NiMH batteries make sure
18. see www Listen Tech com or contact Listen for complete warranty details 69 Optional Accessories Earphone Options o D O o o o 5 O E c 2 Qa Oo Ear Speaker Ear Speaker Dual Ear Speaker LA 164 LA 161 LA 162 Stereo Headset Neckloop LA 165 LA 166 70 Optional Accessories Connector Options e E fe 2 Q gt 2 2 O o o 9 O Consumer Professional Camcorder Cable Sacrificial Cable Camcorder Cable LA 265 LA 275 LA 266 71 72 73 Li te 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
19. that end users may bring and use their own receivers that don t have the SQ function SQ Summary Improves noise performance 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 permit oper ation with older Listen products or other manufacturers products 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 E a 7 O o 0 v 5 2 9 a When designing and installing your system keep in mind that the location of both the transmitter and receivers is critical to maximizing signal strength s l b Eliminate or minimize obstructions between the transmitter and receivers c Minimize the distance between the transmitter and receivers d Move transmitter and receivers away from metal objects e Place the transmitting antenna as high as possible on stationary transmitters f Orient both transmitting and receiving antennas vertically g For 216MHz stationary LT 800 transmitter only consider using a gain antenna such as a Yagi type antenna or the LA 107 ground plane antenna h On portable transmitte
20. you are using fully charged batteries 49 LR 300 Operation Instructions aD Make Sure the Unit is On Rotate the volume knob counterclockwise with an earphone or headset connected to the unit Listen receivers use the cable of the earphone or headset as a receiving antenna S 5 o o O o o 5 Be careful when turning the unit on if you turn the knob too far you might get too much volume in your earphone 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 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 sound noisy or distorted Simply press SEEK again until you find the clearest operating channel Test the audio If a transmitter is broadcasting on that channel you will be able to hear the audio If the signal is too weak the audio will be muted squelched a L O o voL me OFF Adjust the volume control Use the control dial on the top of the unit to adjust the volume to a comfortable level 50 LR 300 Operation Instructions continued 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 ag
21. 1 72 5500 QD n 72 5750 2 2 2 C2 25 33 72 6000 9 O O O O 24 12 F 72 6 72 6250 3 3 3 02 26 25 72 6500 EN 13 72 6750 4 4 4 4 E7 72 7000 D D D D D 28 14 G 72 7 72 7250 5 5 5 D5 29 Chart continued on next page 60 72MHz Compatibility Chart continued N N lt rI N O o 3 Lo E c z O 2 Q Frequency Phonic Parenthesis indicate T35 and T20 MHz Listen Ear Comtek Phonak Willlams Gentner Telex Drake narrowband 75 5250 23 23 23 FS 49 59 75 5500 60 29 NOTE Wideband frequencies in 75 5750 24 24 24 FA 50 61 highlighted rows 75 6000 S S 9 S S 62 30 K 75 6 75 6250 25 25 25 S5 51 63 75 6500 64 31 75 6750 26 26 26 S6 62 65 75 7000 G G G G G 53 66 32 E 75 7 75 7250 27 27 27 G7 54 67 75 7500 68 33 75 7750 28 28 28 G8 55 69 75 8000 T T T T T 70 34 M 75 8 75 8250 29 29 29 19 56 71 75 8500 72 35 75 8750 30 30 30 TO 57 73 75 9000 H H H H H 58 74 36 N 75 9 75 9250 31 31 31 HI 59 75 75 9500 76 37 75 9750 32 32 32 H2 60 77 61 216MHz Compatibility Chart Updated 03 16 04 Frequency Phonic Light MHz Listen Ear Comtek Phonak Williams Gentner eS AVR Speed Parenthesis indicate T35 t O 8 8 o o E e o N I o N 21
22. 6 0125 A C01 NO and T20 narrowband 216 0250 2A 41 41 41 1 1 216 0375 3A 2 2 NOTE Wideband frequen 216 0625 B 3 21 cies in highlighted rows 216 0750 2B 42 42 42 2 10 216 0875 3B 4 4 216 1125 C 5 5 C05 216 1250 De 43 43 43 A 3 6 216 1375 3C 6 22 216 1625 D 7 23 216 1750 2D 44 44 44 B 4 14 216 1875 3D 8 8 216 2125 1E 9 C09 NO9 216 2250 2E 45 45 45 C 5 2 216 2375 3E 0 24 216 2625 1F 1 25 216 2750 2F 46 46 46 D 6 11 216 2875 3F 2 12 C12 N12 216 3125 G 3 13 216 3250 2G 47 47 47 E 7 7 216 3375 3G 4 26 216 3625 H 5 27 216 3750 2H 48 48 48 F 8 15 216 3875 3H 6 16 C18 N18 216 4125 J ve 17 C21 216 4250 2J 49 49 49 G 9 18 216 4375 3J 8 18 216 5125 K 21 61 216 5250 2K 51 51 29 H 10 3 Chart continued on next page 62 N me 216MHz Compatibility Chart continued I Q Frequency Phonic Light e MHz Listen Ear Comtek Phonak Williams Gentner CSI AVR Speed 3 216 5125 1K 21 61 Parenthesis indicate T35 216 5250 2K 51 51 29 H 0 3 and T20 narrowband 216 5375 3K 22 62 e 216 5625 TL 23 28 NOTE Wideband frequen 216 5750 2L 52 52 52 1 12 cies in highlighted rows lt 216 5875 3L 24 64 C24 N64 9 216 6125 M 25 65 C25 3 216 6250 2M 53 53 53 J 2 8 a 216 6375 3M 26 81 216 6625 N 27 82 216 6750 2N 54 54 54 K 3 16 216 6875 3N 28 68 216 7125 P 29 69 C29 216 7250 2P 55 55
23. NiMH batteries and SQ enable disable and programmable squelch setting User Controls Volume channel UP DOWN SEEK All controls except volume are electronically lockable and are behind the door Programming LCD Display Squelch can be adjusted for sensitivity and signal capture control Channel selection can be locked by holding the SEEK button for 5 seconds Unit cannot be programmed however it is capable of entering squelch mode Indicates channel RF signal strength lock status and squelch setting LED Battery Type Red illuminates when unit is on Flashes when batteries are low Flashes when charging Flashes when locked and user attempts to seek to another channel Two AA batteries alkaline or NIMH Battery Life Listen batteries 30 hours alkaline LA 361 15 hours NIMH rechargeable LA 362 Battery Charging NIMH only Fully automatic 14 hours Power Supply Connector 2 3mm OD by 0 7mm ID barrel type connector 7 5VDC center positive lt 250mA Drop in contact points for use with Listen charging carrying cases Compliance Dimensions UL Listed 3 0 in x 1 0 in x 5 in WxDxH 7 6cm x 2 5cm x 13 cm Unit Weight 390z 1119 Unit Weight with batteries 5 8 oz 164 49 Shipping Weight 1 0 Ibs 453 6kg Door Temperature Operation Manually lockable UP DOWN and SEEK protected by door 10 to 40 C 14 to 104 F Temperature Storage 20
24. a Listen charging case NiMH batteries will be charged Connect LA 202 here and plug it into an AC wall outlet To charge the batteries using the LA 202 wall transformer plug the trans former into the jack marked PWR CHG on the side of the unit The unit can be operated while the batteries are charging N gp e D 9 D e o o b To charge the batteries using a drop in charger simply place the unit into a slot in the charger and connect the charger to power Make sure the unit is fully seated in its slot One of several charging cases available from Listen Check the Listen web site for more details SmartCharge uses a pulse charging which greatly extends the life of Nickel Metal Hydride NiMH batteries The entire charging process takes 13 hours Listen recommends that you allow the charger to complete its full cycle every time for maximum battery life IMPORTANT DO NOT ATTEMPT TO CHARGE ANY TYPE OF BATTERY OTHER THAN NiMH NICKEL METAL HYDRIDE with your Listen equipment Alkaline batteries may explode when connected to a charger Other risks of charging non NiMH batteries include destruction of property or fire IMPORTANT In order to charge NiMH batteries the BATTERY SELECT switch in your Listen product must be set to the NiMH setting Use a pen or small screwdriver to move the switch located in the battery compartment to the prope
25. ain to unlock When locked the LED on top of the unit will flash when you press the SEEK button gt w 2 t 0 Ke o Q 5 So Q c o 2 5 Is the Channel Locked on My Receiver On the LR 300 when the channel is locked the red LED on the top of the unit will flash when you press the SEEK button Iflocked LED flashes on all portable receivers when SEEK button is pressed 51 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 Connect LA 202 an LA 202 wall transformer or dropped into a Listen charging case NiMH here and plug it batteries will be charged into an AC wall outlet N p e E IS D e o o ui To charge the batteries using the LA 202 wall transformer plug the trans former into the jack marked PWR CHG on the side of the unit The unit can be operated while the batteries are charging To charge the batteries using a drop in charger simply place the unit into a slot in the charger and connect the charger to power Make sure the unit is fully seated in its slot One of several charging cases available from Listen Check the Listen web site for more details SmartCharge uses a pulse charging which greatly extends the life of Nickel Metal Hydride NiMH batteries The entire charging process takes
26. ation 0 0 cece eee e 55 Channel Selection e sossarna Bare km 40A ue gece p ve re 17 119 60641116 o iet Nd TR Dn 56 Lister SO M osos eiut o d estet Anh 00 4 vip ER d 4 8400428106 2208 TS e NT SE Se t2 t deett dd 58 RF Reception Maximization Strategies esee 59 72 MHz Frequency Compatibility Table 60 216 MHz Frequency Compatibility Table esee 62 Troubleshooting ceda pied 1544 64 64 b CU e t 44a RIS ema a ue ps 64 Compliance Notice een AIMER DV E Sic IW 67 FCG Statement 43 3124 22 116 2256606 25 RE TU Del UR 14 1155 Shaw atadas S S I 68 Warranty ings AA Ruta ode hanes t n ae eie eb ete dud 69 Optional Accessories dida G i raies o HE e ERE Rp EUREN N APA EE ERR 02 70 r i ow e e o YT S O fe 4 0 43 N c O e i O o Q o o o nd 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 frequen cy response of 63Hz to 15KHz 3dB at 72MHz The device shall incorporate a stereo headset jack that allows the user to plug in either a mono or stereo headset and listen to audio normally The receiver shall incorporate automatic battery charging circuitry for recharging of NiMH batteries The Listen
27. atteries the BATTERY SELECT switch in your Listen product must be set to the NiMH setting Use a pen or small screwdriver to move the switch located in the battery compartment to the proper position 19 eo s 2 e a IS E 2 5 Ee O e e 20 LR 500 Charging Batteries continued 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 howev er if you unplug the unit from the charger and then plug it back in it will begin the 13 hour charge cycle over again When not using the LR 500 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 NOTE Listen uses 1800mAh milli Amp hour 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 LR 500 Wall Transformer Operation The LR 500 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 500 marked PWR CHC and plug the wall transfo
28. chinformation ia A Wadena ee EE CPUS 36 Squelch Programming dd AA OS 37 Ehareing Batteries Lt A oe e ERU AE v v0 38 Wall Transformer Operation scarsie sewaan iei Ea E AE e 40 Supplementary Information sssssssu eee cee eee neces 55 Channel Selecta RA it e RO e tieu s i EQUIS ota 56 EAS oe Lo Lue Los LER AE AE d nh LA E UR CC 58 RF Reception Maximization Strategies 00 eee cee eee 59 72 MHz Frequency Compatibility Table 60 216 MHz Frequency Compatibility Table 62 Troubleshooting 32 A o Xup Hy She sa b eed 64 Compliance Note o voc ea eth Qua hoa d n CNR eS M wok i c Yr Rat 61 FEC Statement iioi b pbed eR eddie HR E ERN RIDERE T Ehe 4 68 Warranty sists e Er CITIES a apa 69 Optional Accessories s ibaa eihar de u60 se gia c aUe rte i ew e e s Rata 70 r t gt e e e 2 9 Oo fe 1 25 eo c 9 e i O o Q o o o y 26 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 63Hz to 15KHz 3dB at 72MHz or of 63Hz to 10kHz 3dB at 216MHz The device will incorporate a stereo headset jack that allows the user to p
29. d LED will illuminate when on _ Tum volume knob counterclockwise LCD display will activate when on Listen DISPLAY RECENER 33 9 5 o Q O o o b 34 LR 400 Operation Instructions Make Sure the Unit is On Rotate the volume knob counterclockwise with an earphone or headset connected to the unit Listen receivers use the cable of the earphone or headset as a receiving antenna Be careful when turning the unit on if you turn the knob too far you might get too much vol ume in your earphone B Select a Channel Select the channel to match the transmission channel by pressing the UP and DOWN buttons on the receiver At 72MHz 72MHz receivers operate on 17 wide band channels and 40 narrow band channels Channels represented by letters on the display i e A are wideband channels channels represented by numbers are narrowband channels At 216MHz 216MHz receiversoperate on 19 wide band channels and 38 narrow band channels Channel numbers starting with a 2 are wide band channels beginning with a 1 or 3 are narrow band channels Refer to the Frequency Compatibility Tables pages 60 63 for specific frequencies and com patibility with other manufacturers test the audio If a transmitter is broadcasting on that channel you will be able to hear the audio If the sig nal is too weak the audio will be muted squelched LR 400 Operation Instructions conti
30. do tell which channel to use Refer to Listen s Frequency Compatibility Tables pages 60 63 Either adjust the transmitter or the receiver to a common channel There is not sufficient range Make sure you are located as close as possible to the antenna of the transmitter Try to place the antenna as high as possible and free from obstacles You can also check the squelch setting perhaps it is too sensitive To change this setting refer page 17 LR 500 or to page 36 LR 400 Users keep changing channels You can prevent users from changing channels by locking in the channel selection This is done by pressing and holding the 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 A D 9 lt o c a o LJ gt fo Q Q 65 D e le tz N Q fe 2 9 o 2 Q o Q 9 66 Receiver Troubleshooting continued cannot change channels when pressing the UP and DOWN buttons or the SEEK button The unit is locked Press the SEEK button for 5 seconds to unlock When change channels only certain channels are accessible The unit has been programmed to tune to only certain channels LR 500 only You can change these channel lock out selections by re programming the unit see page 16
31. e LR 500 Look amp Listen Display Dots indicate the relative RF Indicates the currently signal strength tuned channel Battery level indicator The indi cator flashes along with the red LED on top of the unit to alert o O o 2 9 2 c o Oo kj Li bi H you when the battery is low and needs to be charged or Indicates the unitis in PROGRAM mode l ten 7 a changed To enter PROGRAM mode press and hold PGM L O Li the UP and DOWN keys until the PGM icon erre ne display ear PROGRAM L O while in Program mode this symbol mode let unit sit idle for 5 seconds See h t 16 fo lete instructi indicates that a channel is locked out and page r complete instructions When the padlock is visible the unit is will not be available to the user Press locked on channel currently displayed SEEK to toggle channels between Locked Press and hold SEEK for 5 seconds to Out and non Locked Out modes unlock or lock LR 500 Battery Indicator All three segments showing Two segments showing One segment showing The batteries are at 50 or The batteries are at 25 49 Your batteries less than 25 capacity When greater capacity Capacity this segment begins flashing along with the H z o LED on top of the unit you should immedi ately change your batteries or recharge them if using NiMH batteries 10 LR 500 Setup Instructions Remove the product Remove outer packaging and plast
32. e 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 Select Channel s LCD display will TRE activate when on See page 56 for complete channel selection information Set Squelch See pages 17 and 18 for squelch and programming information PROGRAMMABLE DISPLAY RECENVER Program Channels see page 16 13 LR 500 Operation Instructions Make Sure the Unit is On Rotate the volume knob counterclockwise with an earphone or headset connected to the unit Listen receivers use the cable of the earphone or headset as a receiving antenna 2 5 o Q O o o x Be careful when turning the unit on if you turn the knob too far you might get too much vol ume in your earphone e Select a Channel Select the channel to match the transmission channel by pressing the UP and DOWN buttons on the receiver At 72MHz 72MHz receivers operate on 17 wide band channels and 40 narrow band channels Channels represented by letters on the display i e A are wideband channels channels represented by numbers are narrowband channels At 216MHz 216MHz receivers operate on 19 wide band channels and 38 narrow band channels Channel numbers starting with a 2 are wide band channels beginning with a 1 or 3 are narrow band channels NOTE Listen recommends the Refer to the Freq
33. eave 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 You should tum SQ off if any of your receivers do not have SQ 29 Quick Reference LR 400 Look amp Listen Display Dots indicate the relative RF signal strength When there is a full signal the unit will display all 8 dots o O o 2 9 2 e o oO Y a mal When the padlock is visible the channel is locked Press and hold SEEK for 5 seconds to unlock or lock LR 400 Battery Indicator All three segments showing Two segments showing I The batteries are at50 or The batteries are at 25 49 greater capacity capacity an mm 30 Indicates the currently Battery level indicator The indicator flashes along with the red LED on top of the unit to alert you when the battery is low and needs to be charged or changed One segment showing Your batteries less than 25 capacity When this segment begins flashing along with the LED on top of the unit you should immedi ately change your batteries or recharge them if using NiMH batteries LR 400 Setup Instructions Remove the product Remove outer packaging and plastic cover Inspect for physical damage If damage is aparent please contact Listen Technologies Corporation technical support for assistance See page 69 for contact information Open the front access door
34. gnal strength lock status squelch battey power level and channel programming LED Battery Type Red illuminates when unit is on Flashes when batteries are low Flashes when charging Flashes when locked and user attempts to seek to another channel Two AA batteries alkaline or NIMH Battery Life Listen batteries 30 hours alkaline LA 361 15 hours NIMH rechargeable LA 362 Battery Charging NiMH only Fully automatic 14 hours Power Supply Connector 2 3mm OD by 0 7mm ID barrel type connector 7 5VDC center positive lt 250mA Drop in contact points for use with Listen charging cases Compliance Dimensions UL Listed 3 0 in x 1 0 in x 5 in WxDxH 7 6cm x 2 5cm x 13 cm Unit Weight 3 902 1119 Unit Weight with batteries 5 8 oz 164 49 Shipping Weight 1 0 lbs 453 6kg Door Temperature Operation Manually lockable UP DOWN and SEEK through door other controls behind door see Controls above 10 to 40 C 14 to 104 F Temperature Storage 20 to 50 C 4 to 122 F Humidity 0 to 95 relative humidity non condensing f e O 5 Lo O H Q 3 o O o 2 x 9 2 e o oO kj Quick Reference LR 500 Front 3 5mm Input J ack LED when lit indicates ON OFF amp VOLUME control dial A Listen earpiece or headset unit has power connects here o Look Listen
35. ic cover Inspect for physical damage If damage is aparent please contact Listen Technologies Corporation technical sup port for assistance See page 69 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 To unlock the door rotate the lock 1 4 turn counterclockwise t e o o 1 2 Lo e c O fe 5 PWRICHG Grip the two tabs with your thumb and index finger and pull the door downward Do NOT place batteries in the unit yet Select Battery Type See diagram on page 9 You have two choices NiMH and Alkaline The unit is shipped with the switch in the Alkaline position Use a pen or small screwdriver to select the battery type CAUTION If you are using any battery type other than Unlocked Locked rechargeable Nickel Metal Hydride NiMH batteries make sure the BATTERY selection switch is in the alkaline position 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 charge any batteries in the unit even if they are not the proper type Charging non Nickel Metal Hydride NiMH batteries will result in physical harm destruction of property and or fire 11 LR 500 Setup Instructions continued Set SQ switch The SQ switch is i
36. ill cause distortion Make sure the earphone connector is pushed all the way into the jack on top of the unit If you re using the LR 300 re scan the channels to find the clearest channel see page 50 Make sure the SQ switch on your transmitter and receivers is turned ON or OFF if some of your equipment is not SQ capable Make sure you are not too close to the transmitting antenna If you can t get farther away from the antenna turn down the RF output power on the stationary LT 800 transmitter There is interference Try different frequencies on the transmitter and receivers until you find a clear channel If this does not work try a different frequency band i e if you are using 72MHz try 216MHz or vice versa This is accomplished by returning the equipment to Listen at no charge Please contact Liten technical support for assistance see page 69 for information Receiver Troubleshooting continued cannot pick up the signal on the receiver Check to make sure the receiver and the transmitter are on the same frequency and channel Also make sure the receiver is in broadcast range of the transmitter can pick up the signal on the receiver but it sounds like it s not tuned in Check to make sure the transmitter and receiver are on exactly the same channel number letter If you re using the LR 300 re scan the channels to find the clearest channel by pressing SEEK see page 50 I m using another brand of transmitter how
37. led in the LR 400 to operate it with a wall transformer NOTE If batteries are in the unit ensure that the battery selection switch is set properly as shown on page 29 Please review the information on page 38 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 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 a User s Manual LR 300 Receiver DIGITAL RECEIVER Don t miss a single sound Listen 41 LR 300 Package Contents Listen Part Number LR 300 072 72MHz 72 MHz LR 300 072 Warranty Card Receiver User Manual c is O 5 Ke 9 o o x Optional Accessories See pages 70 71 42 LR 300 Table of Contents Architectural Specifications veritat bande ios ia 44 Specifications c nee tava hae aah ke AO Ube E eee haw 44 Quick Reference six cc ued 226146 vale se beaten IY Sie Ga A he eta 112 Fle 46 Setup Instructions pirita A gah m BUNC PEN Aa ae 5 eee Meee 48 Operation Instructions 424 12 44 22x th shang bods cidad heed ets sa 50 Charging Battista aunties rro S 52 Wall Transformer Operation isses em ale aaa 40 0x04 4 40404 een 2204 606 54 Supplementary Inform
38. lug in either a mono or stereo headset and listen to the audio normally The device shall incorporate an LCD display that indicates channel battery level low battery battery charging RF signal strength and channel lock status The receiver shall incorporate automatic battery charging circuitry for recharging of NiMH batteries The Listen LR 400 is specified Specifications Specification RF Frequency Range LR 400 072 LR 400 216 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 0 to 50 C 32 to 122 F Antenna Uses earphone cable Antenna Connector 3 5mm connector Squelch Programmable in 20 steps Compliance FCC Part 15 Industry Canada Allsystem specifications are wireless end to end System Frequency Response 63Hz 15kHz 3dB 63Hz 10kHz 3dB System Signal to Noise Ratio A weighted SQ enabled 80aB SQ disabled 60dB SQ enabled 80dB SQ disabled 50dB System Distortion 296 total harmonic distortion THD at 8096 deviation Output 3 5mm connectors unbalanced OdBu nominal output level 16mW maximum impedance 32 Ohms LR 400 Specifications continued Controls Indicators Physical Environmental Specification Set Up Controls LR 400 072 LR 400 216 Alkaline
39. n name disappears and a two digit display is seen To adjust the Squelch level Use the Channel UP and DOWN buttons to raise or lower the squelch sensitivity settings Lower numbers mean that a less powerful and possibly noisy signal will be heard but you can have a longer range Higher numbers mean that a more powerful signal with no noise will be heard but you may have a shorter range To save and exit the squelch programming mode press the seek button Squelch setting 00 is no squelch this effectively disables Squelching capabilities of the receiver Squelch setting 20 is maximum squelch sensitivity you must have a very strong and stable RF signal for the unit to not engage the squelch feature 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 Note For squelch settings 1 3 the squelch function is slow which allows for maximum transmission range For squelch settings 4 20 the squelch function is fast to ensure little radio noise is heard during the squelch function The Listen SQ feature is not squelch please refer to page 58 for information on Listen SQ 37 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
40. n of the TV Channel 13 aural carrier if there is a channel 13 trans mitter 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 NOTE The LR 300 072 can only be used with the 17 wide band 72MHz channels if you are using the LR 300 choose only lettered wide band frequencies on your transmitter 57 E a o o S8 Listen SQ 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 sys tems Listen now offers a noise reduction technology called ListenSQ 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 If you are planning to use this product with older Listen sys tems or equipment not manufactured by Listen you should disable SQ 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 rea sons 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 manufacturers 3 You expect
41. nside the battery compartment next to the Battery Select switch The unit is shipped with SQ in the ON position To turn it off use a small screwdriver or pen to slide the switch to the OFF position to the right See page 58 for more information on SQ Battery SQ Select 7 c z 5 2 o c Q 2 es e S amp o Select Switch Switch Place Batteries in Unit Place two AA batteries in the compartment making note of the battery polarity shown in the battery compartment and again verifying that the BATTERY SELECT switch is in the correct position for the batteries you are using ALK should be selected for all battery types other than NiMH NOTE Listen uses 1800mAh milli Amp hour constant current NiMH Nickel Metal Hydride batteries These may be purchased from your Listen dealer ask for part number LA 362 12 LR 500 Setup Instructions continued 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 T e o 1 a Lo wn e c O fe 5 z Red LED will illuminate Turn the Unit On when on Receivers are turned on by rotating the volume Farphane Headset jack Tum volume knob counterclockwise to tum on dial counterclockwise The red LED on top of th
42. nued T gt o o e Ke o 9 5 Find an audio transmission using SEEK 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 The unit may stop on a channel that is close to the actual broadcast channel in which case the channel will sound noisy or distorted Simply press SEEK again until you find the clear est operating channel Adjust the volume control Use the control dial on the top of the unit to adjust the volume to a comfortable level cM O NE voL NE OFF 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 AS Is the Channel Locked on My Receiver On the LR 400 when the channel is locked the padlock icon will appear on the display If the unit is locked the red LED on the top of the unit will flash when you press the SEEK button If locked LED flashes on all portable receivers when SEEK button is pressed Padlock appears when locked 34 LR 400 Squelch lt 2 o 5 o D o iz t Squelch The purpose of squelch is to mute the audi
43. o output of your receiver when the signal from the transmitter is turned off or is too weak to be received Without squelch you would hear radio noise in your earphone The squelch on your receiver can be adjusted so that it will mute the audio on different RF signal strengths This is useful as follows To ensure that users don t hear transmissions from other transmitters set the squelch set ting to the highest level that doesn t squelch the receiver 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 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 If you need the maximum amount of range you may want to consider setting the squelch setting to a low level 0 1 or 2 CAUTION when setting the squelch level low the relia bility of squelch function is comprised This will cause radio noise to be heard in the ear phone and there is a possibility of hearing damage 36 Squelch Programming Instructions Ki gt o o Q c o gt Squelch Programming To enter Squelch programming mode Turn the unit off Press and hold the seek button while still holding seek turn the ON OFF dial to turn the unit on Release the seek button when the Liste
44. r position 38 LR 400 Charging Batteries continued During the charge cycle the red LED on top of the Listen product will flash slowly When charg ing 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 When not using the LR 400 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 NOTE Listen uses 1800mAh milli Amp hour 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 the www ListenTech com for more options LA 311 16 unit Drop In Charging Case shown t gt o o 9 gt e Q 5 Q w 2 c 39 E 2 N i 9 E e i Y _ 40 LR 400 Wall Transformer Operation The LR 400 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 400 marked PWR CHG and plug the wall transformer into a grounded AC outlet You do not need to have batteries instal
45. 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 encouraged 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 manufacturer could void the user s authority to operate this equipment AJUDIIDA Warranty Listen Technologies Corporation Listen warrants its receivers LR 300 LR 400 LR
46. rmer into a grounded AC outlet i a O o 8 e 5 o 9 3 9 You do not need to have batteries installed in the LR 500 to operate it with a wall transformer NOTE If batteries are in the unit ensure that the battery selection switch is set properly as shown on page 9 Please review the information on page 19 for important information regarding battery type and charging The LA 202 wall transformer plugs into the side of your portable transmitter or receiver 21 this page intentionally left blank 22 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 User s Manual LR 400 Display Receiver DISPLAY RECEIVER DISPLAY RECEIVER Don t miss a single sound Listen 23 LR 400 Package Contents Listen Part Number LR 400 72MHz or 216MHz 72 MHz LR 400 072 Warranty Card 216 MHz LR 400 216 Receiver User Manual 2 N 2 2 o O 2 o E o o Optional Accessories See pages 70 71 24 LR 400 Table of Contents Architectural Specifications 2 0 0 ccc ccc e 26 Specification aged Me Dae hee an S 26 Quick Reference inte iq 0064 la a Paw DEES ewe 28 Setup Instr ctiODs este Wee ne A aot ete REY ds 31 Operation Instructions 42 5 s24 sahesic25 2 65 44 04 4 0 ed 34 Squel
47. rogrammable Display Receiver PROGRAMMABLE DISPLAY RECEIVER DISPLAY RECEVER Don t miss a single sound Listen LR 500 Package Contents Listen Part Number LR 500 72MHz or 216MHz 72 MHz LR 500 072 Warranty Card 216 MHz LR 500 216 Receiver User Manual c Q O 5 Ke 9 iz o o s Optional Accessories See pages 70 71 LR 500 Table of Contents Architectural Specifications cee eee een hen 6 Specific OS lt dao EE Rata eels aede tou EM Eoo A LU 6 Quick Reference s n c am e de e ea es Rete t Ed 8 Setup HastEuctions as Lao eite epo M tre E eod eb seve a dena ies E RS e el 6u c c Set 11 Operation Instructions rra suds o ah 14 Programming Instructions 3 223 24956605 eR UR e be eR as eke eR ee 16 Squelch Information 2 72x e ke des we veh h 8 An cua 10 6 A1066 ERU DER ISIN RUSSE 17 Squelch Programming 145 5 del sie aed ee elas Sle re s et a 18 Charging Batteries 22m mee eee CRIAM eet ARV ERE eR EAE RSS 19 Wall Transformer Operation o 21 Supplementary Information 55 Channel Selection cse d nie ta i v se 6 i9a des eU sO d er bet hedge 56 listenotQiMt sro terrd ub Hen deen sien ate ea io de 58 RF Reception Maximization Strategies 0 eene 59 72 MHz Frequency Compatibility Table oooooococoococccccccccccccn ooo o 60 216 MHz Frequency Compatibility Table
48. rs and receievers the cable from the microphone or headset is the anten na ensure that the cable is not coiled or laying horizontal CAUTION When installing remote antennas ensure the antenna is clear of power lines NOTE If the RF signal to the 216MHz models is too high the audio will be distorted This may happen if you are within 40 feet 12m of the LT 800 216 transmitter or within 5 feet 1 5m 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 59 72MHz Compatibility Chart Updated 03 16 04 t e 8 8 o o E e o N I z N Phonic Parenthesis indicate T35 and T20 Ear Comtek Phonak Wiliams Gentner Telex o EE narrowband 72 0250 1 1 Al 11 1 72 0500 2 1 NOTE Wideband frequencies in 72 0750 2 2 2 A2 12 3 highlighted rows 72 1000 A A A A A 13 4 2 A 72 1 72 1250 3 3 3 A3 14 5 72 1500 3 72 1750 4 4 4 A4 15 7 72 2000 K K K K K 8 4 B 722 72 2250 5 5 5 K5 16 9 72 2500 10 5 72 2750 6 6 6 K 17 11 72 3000 B B B B B 18 12 6 C 72 3 72 3250 7 7 7 B7 19 13 72 3800 q2 7 72 3750 8 8 8 B8 20 15 72 4000 N N N N N 16 8 D 724 72 4250 9 9 9 NO 21 17 72 4500 08 9 72 4750 0 0 0 NO 22 19 72 5000 9 E a C 23 20 10 E 725 72 5250 1 1 1 Cl Q4 2
49. s alkaline LA 361 15 hours NiMH rechargeable LA 362 Battery Charging NiMH only Fully automatic 14 hours Power Supply Connector 2 3mm OD by 0 7mm ID barrel type connector 7 5VDC center positive lt 250mA Drop in contact points for use with Listen charging cases Compliance Dimensions UL Listed 3 0 in x 1 0 in x 5 in WxDxH 7 6cm x 2 5cm x 13 cm Unit Weight 3 902 1119 Unit Weight with batteries 5 8 oz 164 49 Shipping Weight 1 0 lbs 453 6kg Door emperature Operation Manually lockable SEEK behind the door 10 to 40 C 14 to 104 F emperature Storage 20 to 50 C 4 to 122 F Humidity O to 95 relative humitity non condensing t O o Ke O H Q 3 45 Quick Reference LR 300 Front LED when lit indicates 3 5mm Input J ack ae B t l u orheadset UNithas power ON OFF amp VOLUME CONTROL dial connects here Bw 7 o O c o 2 x 9 2 c o o M Listen DIGITAL RECEIVER 46 Quick Reference LR 300 Inside Access Door Battery Select Switch SEEK button allows the user to change channels or to lock on a channel SQ 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
50. st 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 b 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 60 63 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 channel D should be at least 150 feet away 56 Channel Selection continued Oo 2 e 2 2 o mn o 2 Notes in regard to using 72MHz and 216MHz systems i 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 type transmissions You will need to find a clear channel by listening to all the wide band channels ii 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 intermodulatio
51. the BATTERY selection switch is in the alkaline position CAUTION If you are using any battery type other than O set sa switch The SQ switch is inside the battery compartment next to the Battery Select switch The unit is shipped with SQ in the ON position To turn it off use a small screwdriver or pen to slide the switch to the OFF position to the right See page 58 for more information on SQ 48 LR 300 Setup Instructions continued ra oO o i 5 Place Batteries in Unit Place two AA batteries in the compartment making note of the battery polarity shown in the battery compartment and again verifying that the BATTERY SELECT switch is in the correct position for the batteries you are using ALK should be selected for all battery types other than NiMH NOTE Listen uses 1800mAh 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 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 O ium the unit on Receivers are turned 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
52. the top of the m flocked LED flashes on all unit will flash when ver portable receivers when SEEK you press the SEEK button is pressed button Padlock appears when locked 15 LR 500 Programming Instructions The LR 500 Display Receiver has some special features not available in the other receivers you may lock out unwanted channels and you can adjust the squelch in the unit Locking Out Unwanted Channels For applications where users are required to select a channel such as language interpretation or D E E i 9 a o f kj classrooms and you don t want them to have to go through all 57 available channels to find the appropriate channel you can lock out all channels except the ones you are using in your facility Enter the PROGRAM mode Press the UP and DOWN buttons simultaneously for 5 seconds until the PGM symbol appears in the display UP and DOWN buttons on front of LR 500 Use the UP and DOWN keys to select channels As channels are displayed on the unit those channels that are locked out from user access will be indicated by the L O Locked Out symbol When a channel is locked out the receiver will skip over that channel when a user is tuning the receiver O 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 au
53. to page 58 for information on Listen SQ 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 connect LA 202 to an LA 202 wall transformer or dropped into a Listen charging case here and plug it NiMH batteries will be charged into an AC wall outlet To charge the batteries using the LA 202 wall transformer plug the trans former into the jack marked PWR CHG on the side of the unit The unit can be operated while the batteries are charging 9119 409 BulBioyd 00S 41 e To charge the batteries using a drop in charger simply place the unit into a slot in the charger and connect the charger to power Make sure the unit is fully seated in its slot One of several charging cases available from Listen Check the Listen website for more details SmartCharge uses a pulse charging which greatly extends the life of Nickel Metal Hydride NiMH batteries The entire charging process takes 13 hours Listen recommends that you allow the charger to com plete its full cycle every time for maximum battery life IMPORTANT DO NOT AITEMPT TO CHARGE ANY TYPE OF BATTERY OTHER THAN NiMH NICKEL METAL HYDRIDE with your Listen equipment Alkaline batteries may explode when connected to a charger Other risks of charging non NiMH batteries include destruction of property or fire IMPORTANT In order to charge NiMH b
54. tomatically return to normal operation If you haven t finished program ming the unit and it automatically exits press and hold the UP amp DOWN buttons simultane ously for 5 seconds to re enter the PROGRAM mode 16 LR 500 Squelch Squelch The purpose of squelch is to mute the audio output of your receiver when the signal from the trans mitter is turned off or is too weak to be received Without squelch you would hear radio noise in your earphone The squelch on your receiver can be adjusted so that it will mute the audio on dif ferent RF signal strengths This is useful as follows To ensure that users don t hear transmissions from other transmitters set the squelch setting to he highest level that doesn t squelch the receiver 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 ransmitters in other rooms 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 If you need the maximum amount of range you may want to consider setting the squelch set ing to a low level 0 1 or 2 CAUTION when setting the squelch level low the reliability of squelch function is comprised This will cause radio noise to be heard in the earphone and here is a possibility of hearing damage fs e
55. uency Compatibility Tables pages 60 63 for specific frequencies and com 488 of wide band transmitters patibility with other manufacturers Test the audio If a transmitter is broadcasting on that channel you will be able to hear the audio If the sig nal is too weak the audio will be muted squelched 14 LR 500 Operation Instructions continued t a O e Ke 9 9 5 Find an audio transmission using SEEK Another way to find a channel on the LR 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 sound noisy or distorted Simply press SEEK again until you find the clear est operating channel Adjust the volume control Use the control dial on the top of the unit to adjust the volume to a comfortable level 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 Is the Channel Locked on My Receiver On the LR 500 when the channel is locked the padlock icon will appear on the display If the unit is locked the red LED on
Download Pdf Manuals
Related Search