Listen Technologies NOT FLJ LT-800-072 Manuale utente
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 take great pride in their
outstanding performance because we care that you are completely
satised. That’s why we independently certify them to the highest quality
standards and back them with a limited lifetime guarantee. We stand ready
to answer any questions you might have during installation or in the operation
of our products. Should you experience any problems whatsoever with your
Listen products, we are ready to help you in any way we can with prompt,
efcient customer care. Because at Listen, it’s all about you! And 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:
+1.801.233.8992
+1.800.330.0891 North America
+1.801.233.8995 fax
www.listentech.com
Thank you and enjoy your listening experience!
Best regards,
Russell Gentner and the Listen Team
• In the few instances where repairs were needed, 99% of all clients indicated that they were happy with
repair turn-around-times and 85% of the time, clients were without their product for less than 10 days!
• Overall client satisfaction of working with Listen was rated 4.8 out of 5.
• “ Please continue with your excellent attitude toward customer satisfaction. You guys are great!”
• “I’ve never had such good service from any company. Keep up the good work!”
• “You stand behind your product wonderfully.”
Assistive Listening • Language Interpretation • Soundeld • Tour Group • Conferencing
1
Table of Contents Specications Setup Instructions Operating Instructions RF Reception Information
Channel Selection
Package Contents Quick Reference Listen SQ™ Compatibility Charts
Table of Contents Table of Contents
Package Contents Specications Quick Reference Setup Instructions Operating Instructions Listen SQ™ RF Reception Channel Selection Compatibility Charts Information
Package Contents 3
Specications 4
Architectural Specications 4
Specications 4
Block Diagram 5
Quick Reference 6
Setup Instructions 7
Operating Instructions 10
Audio Control 11
Listen SQ™ (Super Quiet) 12
RF Reception Maximization Strategies 13
Coaxial Cable 13
Channel Selection 14
Compatibility Charts 15
72 MHz Frequency Compatibility Chart 15
216 MHz Frequency Compatibility Chart 16
Phonak Frequency Compatibility Chart 17
Supplementary Information 18
Troubleshooting 18
Compliance Notice 20
FCC Statement 20
Warranty 21
Contacting Listen 21
Optional Accessories 22
LT-800 Table of Contents
3
Package Contents
Package Contents
Package Contents
LT-800 Package Contents
Optional Accessories
See page 22
Listen Part Number
LT-800-072 (72 MHz)
LT-800-216 (216 MHz)
LT-800 Contents
• LT-800-072 (72 MHz) or
• LT-800-216 (216 MHz) or
• 12 VDC Power Supply
• User Manual
4
Specications
LT-800 Specications
Architectural Specications
The stationary FM transmitter shall be capable of broadcasting on 57 channels. The transmitter
shall have a SNR of 80dB or greater. The output power shall be adjustable to quarter, half or
full. Channel tuning shall be capable of being locked. The device shall broadcast on both wide
and narrow band channels. The device shall have an audio frequency response of 63 Hz to
15k Hz, ± 3dB at 72 MHz, or of 63 Hz to 10k Hz, ± 3dB at 216 MHz. It shall have two mixing audio
inputs. The device shall have the following audio controls: input level, mix level and an
adjustable low pass filter. The device shall have an audio processor that is capable of
automatic gain control and limiting. The Listen LT-800 is specified.
Specification
Specications LT-800-072 LT-800-216
RF
RF Frequency Range 72.025 - 75.950 MHz 216.025 - 216.9875 MHz
Number of Channels 17 wide band, 40 narrow band 19 wide band, 38 narrow band
Frequency Accuracy +/-.005% stability 32˚ to 122˚F (0˚- 50˚C)
Transmitter Stability 50 PPM
Output Power 80,000uV at 3 m 100mW (max allowed by FCC)
Antenna Various Antennas available
Antenna Connector BNC
Compliance FCC Part 15, Industry Canada FCC Part 90, Industry Canada
** All system specications are wireless end-to-end
Audio
System Frequency Response 50 Hz - 15 kHz (±3 dB) 50 Hz - 10 kHz (±3 dB)
System Signal to Noise Ratio
(A-Weighted) 80 dB SQ enabled; 60 dB SQ disabled 80 dB SQ enabled; 50 dB SQ disabled
System Distortion <2% total harmonic distortion (THD) at 80% deviation
Audio Input 1 Rear panel. (1) Female-XLR and ¼ in. combo connector, balanced, 0/-55 dBu (line/mic) nominal input level adjustable,
-30/+21 dBu (line/mic) maximum input level, impedance 20k/1k Ohms (line/mic), phantom power +12 VDC.
Audio Input 2 Rear panel. Two (2) Phono connectors, unbalanced, -10/+10 dBu nominal input level
adjustable, +30 dBu maximum, impedance 100k Ohms.
Audio Processing (Process) Compression can be turned on/off. Slope internally adjustable from 1:1 to 4:1. Default 2:1
Contour Cuts and boosts frequencies above 5 kHz
Combined Audio Output (Mix) Input 1 and Input 2 Mixed Output (Rear Panel). Two (2) phono connectors, unbalanced, -10 dBu nominal output level,
+19 dBu maximum, impedance 10 ohm.
Headphone Output (Monitor) Front panel. One (1) 3.5 mm stereo connector, unbalanced, adjustable output level, +7 maximum, impedance 10 Ohm.
Controls
Front Panel Power, Test Tone on/off, Channel UP/DOWN, Input levels, Mix level, Contour, Monitor volume control.
Rear Panel Input 1 Level (line, mic, mic-phantom power), Input 2 Level (-10/+10 dBu), RF Power (low, mid, high)
Internal Adjustments Compression ratio for audio processor
Programming SQ on/off, Processing on/off. Channel lock
Indicators
Input 1 and Input 2, Mix VU Indicates Input 1, Input 2 and Mix audio levels. 10 segment LED’s (8 green, 2 red)
SQ and Processing Indicated by a green LED when on (front panel)
RF Power Indicated on the LCD (low, mid, high)
LCD Display Channel designation, lock status, RF Power Level, programming (front panel)
Test Tone Red LED illuminates when test tone enabled
Power
Power Supply Type In-line power supply. Listen part number LA-207 (Line cord is determined by each country’s AC power standards).
Power Supply Input Input: 100-240 VAC, 50-60 Hz, 0.4 A
Power Supply Output Output: 12 VDC, 1.3 A, 15.6 W
Power Supply Connector Output Connector: .02 in. (5.0 mm) OD, .01 in. (2.5 mm) ID, barrel type
Power Supply Compliance UL, CE, GS, TUV
Physical
Dimensions (H x W x D) 1.75 x 8.50 x 9.13 in. (4.5 x 21.5 x 23 cm)
Color Dark Grey with white silk screening
Unit Weight 2.6 lbs. (5.7 kg)
Unit Weight with LA-201 4.4 lbs. (2.0 kg)
Power Supply
Shipping Weight 5.0 lbs. (2.26 kg)
Rack Mounting One (1) rack space height, 1/2 rack space wide. One (1) or two (2) transmitters can be mounted in one rack space.
Optional rack mount (LA-326)
Environmental
Temperature - Operation -10˚C (14˚F) to +40˚C (104˚F)
Temperature - Storage -20˚C (-4˚F) to +50˚C (122˚F)
Humidity 0 to 95% Relative Humidity, non condensing
Specications are subject to change without notication
5
Specications
Package Contents
Package Contents
Specications
In-Line
Power Supply
LA-201
(provided)
115VAC6
0 Hz
Top Mounted
Antenna Stud
BNC
Listen LCD Display
Backlighted
HEADPHONE
3.5MM
Stereo
15VAC, 1A
Transmitter RF Board
Power Supply
CPU Module
SQ
Companding
ProcessingPre-emphasis
POWER
On O
PROCESS
SQ
ANTENNA
Functions controlled by the CPU
Module
Volume
Up
Down
Remote
Antenna
Connection
On O
Compression Ratio
(internal adjustment)
Red
LED
Green
LED
Green
LED
CONTOUR
MIX LEVEL
CHANNEL SELECT
On OLow High
Mid
Female XLR-1/4"
Combo Connector
2/Tip
3/Ring
Line
1/Sleeve
Mic
12VDC
Mic
Phantom Pwr
Input 1 Level Select
Mic-Phantom Pwr, Mic, Line
-10dBu+10dBu
Input 2 Level Select
+10dBu/-10dBu
Phono Phono
Input Level
Front Panel
400Hz
TEST TONE
OFF ON
Red
LED
Test Tone Button
Front Panel
MIX OUTPUT
Input 1 VU
Meter
Input 2 VU
Meter
INPUT 2
INPUT 1
RF POWER
MIX Level
VU Meter
LT-800 Block Diagram
6
Quick Reference
Quick Reference
Specications
Package Contents
Package Contents
Quick Reference
SQ
SQ
Adjust audio input levels
of Input 1 and Input 2
here. See page 11 for
more information.
Indicates audio input
level of Input 1 and
Input 2. Shows
mixed audio
level.
Indicates
Process Mode
is active.
LCD: Shows
which channel
is selected.
Monitor Port: Plug
in a headset and
adjust volume.
Channel Select Down:
Press for 8 seconds to
enter program mode.
See page 8 for more
information.
Contour: Equalization
adjustment. Turn
counter-clockwise for
voice and clockwise for
music.
Mix Level: Adjust so
the Mix Level meter
occasionally lights
the red LED.
Test Tone: Activates
a tone to aid system
setup.
Power
ON / OFF
The Listen LA-201
power supply
connects here.
Set RF Power level here
(¼, ½, and Full). See
page 9 for guidelines
on setting power levels.
Input 2: Connect
unbalanced audio to these
phono connectors, input
level -10dBu or +10dBu.
Input 2: Set switch to
match the level of your
Input 2 audio source,
not used to increase or
decrease level by +10dBu.
Input 1: Used for balanced
connection of a microphone
or line level input. This
combination connector
accepts either XLR or ¼”
phono plugs.
Select Line, Mic or Mic+Phantom
Power. Line is balanced 0 dBu
input level, Mic is -55dBu, +12VDC
supplied in PH Power position.
If not using input 1, leave in line
position.
Mix Output: These connectors
contain a mix of Input 1 and
Input 2. They are unbalanced
phono connectors; and the
output level is -10dBu.
Remote Antenna Connection:
See page 22 or the Listen
website for details on antennas
that can be attached here.
Top mount antenna connection:
Remove rubber plug and screw
antenna in place.
Indicates
Super Quiet
mode is active.
Channel Select Up:
Press for 3 seconds
to lock on current
channel.
LT-800 Back Panel: Connections & Settings
LT-800 Front Panel: Controls & Displays
LT-800 Quick Reference
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