Listen LA-123 90 - Manuals

6 Design Guide System Overview There are four main components to the Value Package – the transmitter, antenna, receiver and input source. The input source can be audio from a sound board, microphone or a personal audio source like a CD player, MP3 player, computer, DVD, etc. Audio will be connected ...

7 Design Guide Input 1 offers a choice of balanced XLR or ¼ in. phono connector. Plug an audio source into Input 1: move the input select switch to the type of input source being used. Select “Line” for Line Inputs, “Mic” for dynamic microphones or “Mic + PH Power” for condenser microphones. A balan...

8 Design Guide LT-803 LT-803 Key Concepts in Value Package Setup The LT-803-072 can accommodate multiple inputs simultaneously with the use of the input level potentiometer. When multiple inputs are present, both input level lights will be activated. Using Multiple inputs Mix Level The mix level act...

9 Design Guide LT-803 LT-803 Test Tone Use the test tone to transmit a 400 Hz tone. This tone will allow the end user to know if the system is transmitting properly. All receivers should be able to hear this tone if tuned to the proper channel. Selecting Transmitting Frequencies Use this section of ...

10 Design Guide Key Concepts in Value Package Setup Antenna placement (rear) Rear mounted antenna Rear mounting the LA-123 90° Helical Antenna (72 MHz) will allow the transmitter to be moved if necessary. For proper and dependable operation, Listen receivers need to receive a strong and consistent s...

11 Design Guide Remote antenna The LA-122 Universal Antenna Kit (72 and 216 MHz) and the LA-116 Coaxial Dipole Remote Antenna (72 MHz) connect to the LT-803-072 and can be placed away from the transmitter for better range. They also allow the unit to be rack mounted with the antenna remotely using t...

12 Design Guide Key Concepts in Value Package Setup The antenna can also be in the front of the rack with the use of the LA-125 Antenna Kit for Rack Mount (72 MHz) and the LA-326 Universal Rack Mounting Kit. Rack Mounting the Transmitter The LT-803-072 can be rack mounted if necessary. With the use ...

20 LT-800 LT-803-072 LT-803-072 Specifi cations Architectural Specifi cation The Stationary FM Transmitter shall be capable of broadcasting on one of any three channels – A (72.100 MHz), E (72.900 MHz) or H (75.900 MHz). The transmitter shall have a SNR of 62 dB or greater. The output power shall be...

23 LT-800 LT-803-072 LT-803-072 Setup Instructions 1 Unpack the Product Remove outer packaging and plastic cover. Verify all components are present and no physical damage has occurred to the product. 2 If rack mounting the transmitter(s), install the optional rack mount kit (LA-326) according to the...

24 LT-800 LT-803-072 XLR Wiring Input from Balanced Audio Source Unbalanced Audio Source 1/4 in. Phono Wiring Balanced Tip Ring Sleeve Unbalanced Top Ring Top Ring/Sleeve Audio from Balanced Audio Source Unbalanced Audio Source Sleeve LT-803-072 Setup Instructions 5 Set the RF POWER switch on the ba...

26 LT-800 LT-803-072 LT-803-072 Operating Instructions Test Tone (if necessary) Adjust Audio Input Level Turn the input knob counter-clockwise to add gain to Input 1. This will decrease gain to Input 2. Turn input knob clockwise to add gain to Input 2. This will decrease gain to Input 1. If you have...

27 LT-800 LT-803-072 LT-803 Adjusting the Contour knob Turn the contour knob counter-clockwise if your audio source is mostly voice. Turn the knob clockwise if your audio source is mostly music. The contour knob adjusts the relative equalization of the unit. This equalization boosts or cuts frequenc...

28 LT-800 LT-803-072 Process Mode Process mode is used for Audio Gain Control (AGC). Press and hold the down button for 10 seconds to activate program mode. Press up button to toggle process On/Off. With the process mode enabled, the LT-803-072 will automatically adjust for inconsistent signal input...

29 LT-800 LT-803-072 Accessories for LT-803-072 v Accessories Antennas LA-80 2-Way RF Antenna Combiner LA-81 4-Way RF Antenna Combiner LA-82 6-Way RF Antenna Combiner LA-101 Helical Top Mounted Antenna (72MHz) LA-106 Telescoping Top Mounted Antenna (72 MHz) LA-116 Coaxial Dipole Remote Antenna (72MH...

38 LT-800 LR-200-072 LR-200-072 Quick Reference 72 Alkaline Battery Select Channel Select NiMH Battery Compartment: Place two (2) AA batteries in compartment. Be sure to follow polarity pattern. On/Off and Volume Control Dial Battery Select Switch: Choose the type of batteries being used - Alkaline ...

39 LR-200-072 72 Alkaline Battery Se lect Chann el Select NiMH LR-200-072 Setup Instructions Remove the product Remove outer packaging and plastic cover. Inspect for physical damage. If damage is apparent, please contact the dealer from which the product was purchased or Listen Technologies Corporat...

40 LT-800 LR-200-072 LR-200-072 Setup Instructions Insert two AA batteries 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. (Alkaline should be selected for all battery...

48 LT-800 Supplementary Supplementary Information Table of Contents Battery Charging Information 50 Frequency Chart 51 Troubleshooting 52 Frequently Asked Questions 54 Compliance, Warranty and Contact Information 55 Notes 57

50 LT-800 Supplementary Battery Charging Information Charging with a drop-in charger To charge the batteries using a drop-in charging case, simply place the unit into a slot in the charging case and connect the case to power. Make sure the unit is fully seated in its slot. To charge batteries using ...

51 Supplementary Frequency Chart Channel Frequency (MHz) A 72.100 E 72.900 H 75.900

52 LT-800 Supplementary Troubleshooting Troubleshooting The LT-803-072 has no power. Make sure the 12 VDC power transformer is connected to a power source and is connected to the jack marked “Power Input”. Make sure the PWR button is pressed in. There is no audio or the audio level is too low. 1. Ma...

54 LT-800 Supplementary Frequently Asked Questions Q What are the differences between the LR-200 and other Listen receivers? A The LR-200 offers three (3) frequencies and can be changed inside the door of the receiver via a switch. The LR-200 does not have an LCD screen, the ability to SEEK for open...

55 Supplementary Compliance Notice and FCC Statement Compliance Notice 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 inter...

56 LT-800 Supplementary Warranty and Contact Information Contacting Listen If technical service is needed, please contact Listen. Pre-authorization is required before returning Listen products. If products were damaged in shipment, please contact the carrier, then contact Listen for replacement or r...