Listen Technologies 863.2 User Manual

5Design GuideFrequency Modulation (FM) Technology Overview)UHTXHQF\PRGXODWLRQ)0LVDPHDQVRIWUDQVPLWWLQJDXGLRXVLQJHOHFWURPDJQHWLFZDYHVThis

6Design GuideSystem Overview7KHUHDUHWKUHHPDLQSDUWVWRD3RUWDEOH)06\VWHP²,QSXWVRXUFHWUDQVPLWWHUDQGUHFHLYHU$PLFURSKRQHLVWKHPRVWFRPP

Design GuideSystem OverviewListen offers two different portable receivers. Receivers/5Portable Programmable'LVSOD\)05HFHLYHU0+

8Design GuideThe range of a portable transmission will vary from one application to another. There are many different REVWUXFWLRQVWKDWFRXOGPLQLPL]H

9Design GuideKey concepts in designing a portable FM systemAs mentioned on page 5, multipath can occur with portable RF systems. The audio quality of

10Design GuideNotes

11Design GuideNotes

15LT-800LT-700LT-700 Package Contents/7• Quick Reference Card• Warranty Card• FM Manual Card /LVWHQ&RQÀJXUDWLRQV/7LT-700 User

LT-800LT-700/76SHFLÀFDWLRQV$UFKLWHFWXUDO6SHFLÀFDWLRQ7KH/7SRUWDEOH)07UDQVPLWWHUVKDOOEHFDSDEOHRIEURDGFDVWLQJRQFKDQQHOV

18LT-800LT-700LT-700 Block DiagramANTENNACompandingQ-TechnologyPre-emphasisRF ModulationLCD DisplayUniversalPower Supply(not included)Power Supply CPU

19LT-800LT-700LT-700 Quick ReferenceArticulating Flexible Antenna3RZHU%XWWRQ7XUQVSRZHU2Q2IIPP,QSXW-DFN&RQQHFWD/LVWHQPLFURSKRQHKH

20LT-800LT-700 LT-700 Setup InstructionsUnpack the Product5HPRYHRXWHUSDFNDJLQJDQGSODVWLFFRYHU,QVSHFWIRUSK\VLFDOGDPDJH,IGDPDJHLVDSSDUHQ

21LT-800LT-700 LT-700 Setup InstructionsThe microphone sensitivity switch is located inside the battery compartment, to the left of the%$77(5<VHOH

22LT-800LT-700 LT-700 Setup InstructionsConnect the MicrophoneThe microphone jack is located on top of the unit. Connect the Line Input Cable (Optiona

23LT-800LT-700LT-700 Operating InstructionsTurn Unit OnPower On/O ButtonWhen you press the power button, the unit turns on. The LED on top of the uni

Dear Valued Customer,Thank you for choosing Listen! All of us at Listen are dedicated to providing you with the highest quality products available. We

24LT-800LT-700Using the MUTE / TALK switchSlide the switch to the mute position and the microphone audio is muted. When the PLFURSKRQHDXGLRLVPXWHG

25LT-800LT-700LT-700 Programming InstructionsProgram Mode Overview7KH/7FDQEHSURJUDPPHGWRWUDQVPLWRQDOLPLWHGQXPEHURIFKDQQHOV)RUDSSOLF

26LT-800LT-7002QFHLQWKHSURJUDPPRGHDIXQFWLRQPHQXLVGLVSOD\HG)XQFWLRQ)LVGLVSOD\HGDVGHIDXOW3UHVVLQJWKHchannel up or down buttons

LT-800LT-700LT-700 Programming Instructions7RUHVHWWKHWUDQVPLWWHUWRGHIDXOWVHWWLQJVIROORZWKHVHLQVWUXFWLRQVReset to default settingsAfter th

28LT-800LT-700Accessories for LT-700Accessories/$8QLW3RUWDEOH&KDUJLQJ&DUU\LQJ&DVH/$8QLW3RUWDEOH&DUU\LQJ&D

29LT-800LT-700Notes

30LT-800LT-700Notes

35LR-400/500LR-400/500 Package Contents/5• Quick Reference Card• Warranty Card/LVWHQ&RQÀJXUDWLRQV/5/5LR-400/500 Use

LR-400/500/56SHFLÀFDWLRQV$UFKLWHFWXUDO6SHFLÀFDWLRQ7KH/5)0UHFHLYHUVKDOOEHFDSDEOHRIUHFHLYLQJRQZLGHEDQGFKDQQHOVZLWKD

38LT-800LR-400/500/56SHFLÀFDWLRQV$UFKLWHFWXUDO6SHFLÀFDWLRQ7KH/5)0UHFHLYHUVKDOOEHFDSDEOHRIUHFHLYLQJRQZLGHEDQGFKDQQHOV

39LR-400/500LR-400/500 Block DiagramPOWERANTENNA3.5 mm ConnectorVOLUMEOnOffCompandingQ-Technologyde-emphasisRFde-modulationLCD DisplayUniversalPower S

40LT-800LR-400/500LR-400-863 Quick Reference5),QSXW,QGLFDWRU,QGLFDWHVWKH5)UHFHLYHlevel.&KDQQHO'LVSOD\'LVSOD\VWKHFKDQQHOWKH

41LR-400/500LR-500-863 Quick ReferenceArticulating Flexible Antenna6((.%XWWRQ$OORZVWKHuser to change channels or lock on a channel.PP2XWSXW

42LT-800LR-400/500LR-400/500 Setup InstructionsRemove the product5HPRYHRXWHUSDFNDJLQJDQGSODVWLFFRYHU,QVSHFWIRUSK\VLFDOGDPDJH,IGDPDJHLVD

43LR-400/500LR-400/500 Setup InstructionsPlace two AA batteries in the compartment, making note of the battery polarity shown in the battery FRPSDUWPH

Design GuideLT-700LR-400/500SupplementaryDesign Guide FM Technology Overview 5 System Overview 6.H\&RQFHSWVLQ&apos

44LT-800LR-400/500LR-400/500 Setup InstructionsReceivers are turned on by rotating the volume dial counterclockwise. The red LED on top of the unit wi

45LR-400/500LR-400/500 Operating InstructionsTurn Unit OnWARNING: Excessive volume may result in hearing damage.Volume knobRotate the volume knob coun

46LT-800LR-400/500LR-400/500 Operating InstructionsAdjust the volume controlUse the control dial on the top of the unit to adjust the volume to a comf

LR-400/500To lock on a channelNOTE: On the LR-400/500, when the channel is locked, a lock icon will appear underneath “Listen” on the display. Also

48LT-800LR-400/500LR-400/500 Operating InstructionsSquelch ProgrammingEntering Squelch Program ModeTurn unit off3UHVVDQGKROGWKH6((.EXWWRQZKLOH

49LR-400/500 SquelchThe purpose of squelch is to mute the audio output of your receiver when the signal from the transmitter is turned off or is too w

50LT-800LR-400/500DX/Local';LVWKHQRUPDORSHUDWLRQDOPRGH/RFDOPRGHFDQHIIHFWLYHO\OLPLWDQ\LQWHUPRGXODWLRQDQGRUinterference in a busy

51LR-400/500LR-500 Programming Instructions (LR-500 only)Programming Instructions7KH/5FDQEHSURJUDPPHGWRUHFHLYHRQDOLPLWHGQXPEHURIFKDQQ

52LT-800LR-400/500Accessories for LR-400/500Accessories/$Stereo Headphones/$Neck Loop/$Ear Speaker/$%HKLQGWKH+HDGStereo Headphones/

53LR-400/500Notes

54LT-800LR-400/500Notes

LR-400/500

59SupplementarySupplementary Information Table of ContentsFrequency Chart 61 %DWWHU\&KDUJLQJ,QIRUPDWLRQ Troubleshoo

61SupplementaryFrequency ChartFrequencies

62LT-800SupplementaryBattery Charging InformationCharging with a drop-in charger7RFKDUJHWKHEDWWHULHVXVLQJDGURSLQFKDUJHUVLPSO\SODFHWKHXQLW

63SupplementaryTroubleshootingTroubleshootingThe unit has no power. 0DNHVXUHWKHXQLWKDVIXOO\FKDUJHGEDWWHULHV3UHVVWKH32:(5EXWWRQ,IWKLV

64LT-800SupplementaryTroubleshootingTroubleshootingMy batteries are not charging0DNHVXUH\RXDUHXVLQJ1L0+EDWWHULHVDQGWKDWWKH%$77(5<6(/(&

65SupplementaryFrequently Asked QuestionsFrequently Asked QuestionsQ'R,QHHGDWUDQVPLWWHUIRUHDFKDXGLRVRXUFH"AYes. To transmit two diff

66LT-800SupplementaryFrequently Asked QuestionsFrequently Asked QuestionsQ&DQWKHUHFHLYHUEH´ORFNHGµRQDFKDQQHOLIQHHGHG"AYes. All List

SupplementaryCompliance, Warranty and Contact InformationContacting Listen,IWHFKQLFDOVHUYLFHLVQHHGHGSOHDVHFRQWDFW/LVWHQ3UHDXWKRUL]DWLRQL

68LT-800SupplementaryNotes

Printed in the United States of America/LVWHQ7HFKQRORJLHV&RUSRUDWLRQ®$OO5LJKWV5HVHUYHGListen Technologies Corporation14912 Her

3Design GuidePortable FM Design Guide Table of Contents FM Technology Overview 5 System Overview 6.H\&RQFHSWVLQ'HVL