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User Manual for Listen Technologies LT-700 Portable Display RF Transmitter Click to enlarge the picture
Contents of the user manual for the Listen Technologies LT-700 Portable Display RF
- Product category: Components & Accessories Listen Technologies
- Brand: Listen Technologies
- Description and content of package
- Technical information and basic settings
- Frequently asked questions – FAQ
- Troubleshooting (does not switch on, does not respond, error message, what do I do if...)
- Authorized service for Listen Technologies Components & Accessories
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User manual for the Listen Technologies LT-700 Portable Display RF contain basic instructions
that need to be followed during installation and operation.
Before starting your appliance, the user manual should be read through carefully.
Follow all the safety instructions and warnings, and be guided by the given recommendations.
User manual is an integral part of any Listen Technologies product,
and if it is sold or transferred, they should be handed over jointly with the product.
Following the instructions for use is an essential prerequisite for protecting
health and property during use, as well as recognition of liability on the part of the manufacturer
for possible defects should you make a warranty claim. Download an official Listen Technologies user manual in which you will find instructions on how to install, use, maintain and service your product.
And do not forget – unsuitable use of a Listen Technologies product will considerably shorten its lifespan!
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Product description The 216 MHz Listen Technologies LT-700 Portable Display RF Transmitter is used to wirelessly broadcast audio for a variety of portable applications. Whether its voice or music, you can broadcast your audio to everyone in the audience without having to carry a microphone or be plugged into a wall. The LT-700-216 is suitable for factory tours, outdoor events, wireless microphone applications, classrooms, training, or personal use - anywhere you need to amplify sound, but don't have (or want) an installed system. The many features of the LT-700 have made portable transmission considerably easier.
- A potent 80 dB signal-to-noise ratio
- A choice between 57 channels, with complete antenna and accessory options makes the LT-700-216 MHz suitable for a wide range of applications
- Look & Listen LCD shows channel, battery status, and programming information
- 100 % Digital - Listen receivers are digitally-tuned so transmission won't drift; assurance that when you select a channel, it stays on the channel
- Transmit up to three (3) channels simultaneously
- Uses standard alkaline or NiMH batteries
- Transformer charging plug or drop in charging contacts
- Built in SmartCharge won't allow batteries to overcharge
- Charging circuitry is conveniently built into Listen's LT-700 Transmitter; never worry about unplugging a transformer at a certain time
- Mic and/or line level inputs
In the Box Listen Technologies LT-700 Portable Display RF Transmitter (216 MHz) Limited Lifetime Warranty Table of Contents
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Technical parametersListen Technologies LT-700-216 Specs | | | Frequency Response ± 3dB | 50 to 10 kHz | | Signal-to-Noise Ratio | SQ enabled: 80 dB; SQ disabled 60 dB | | Distortion | <2% total harmonic distortion (THD) at 80% deviation | | Microphone Sensitivity | Three position switch: high, middle, and low; 6 db increments | | Line Input | Unbalanced, ring of 3.5 mm connector, -10 dbu nominal input level, -3 dbu maximum, impedance 10 kOhms | | Microphone Power | 5 VDC Bias | | Microphone Input | Unbalanced, tip of 3.5 mm connector, -45 dBu nominal input level, -30 dBu maximum, impedance 20 kOhms | | | | User Controls | Power
Mute
Channel UP/DOWN
Mic sensitivity
NiMH/alkaline battery
SQ enable/disable
Programming:
Channel lock out
Channel lock | | Indicators | LEDs:
Red, illuminated when unit is on
Flashes when batteries are low, or to indicate charging
Flashes when muted
LCD:
Channel Designation
Lock status
Signal strength indication
Battery life
RF Power | | | | Frequency Range | 216.0125 to 216.9875 MHz | | Supported Transmitters | 3 | | Frequency Accuracy | ± .005% stability 32 to 122ºF (0 to 50ºC) | | Transmission Stability | 50 PPM | | Transmission Range | From 0 to 150' (45.7 m) | | Output Power | <10 mW | | Antenna Type | Microphone cable | | Antenna Connector | 3.5 mm | | | | Battery Type | 2 x AA batteries, alkaline or NiMH | | Battery Life | 15 hours alkaline (LA-361), 15 hours NiMH rechargeable (LA-362) | | Battery Charging Time | Fully automatic, 13 hours | | Power Supply | I/P 120VAC; O/P 7.5VDC 250 mA; Drop in contact points for use with charging cases. Power supply optional, not included (LA-208) | | Power Supply Connector | 2.3mm OD by 0.7mm ID, barrel type connector 7.5 VDC, center positive <250mA.
Drop in contact points for use with Listen charging cases | | Compliance | RoHS, WEEE, UL, PSE, CE, CUL, TUV, CB compliant
RF:FCC Part 15, Industry Canada
Safety: RoHS | | | | Temperature (Operating) | 14 to 104º F (-10 to 40ºC) | | Storage Temperature | -4 to 122°F (-20 to 50ºC) | | Relative Humidity | 0 to 95% relative humidity, non-condensing | | Color | Dark gray with white silk screening | | Door Type | Manually lockable, controls accessible through doors | | Component Dimensions & Weights | Dimensions(H x W x D): 5 x 3 x 1"(13.0 x 7.6 x 2.5 cm)
Unit Weight with Batteries: 5.8 oz. (164 g)
3.9 oz. (111 g) | | | | Package Weight | 0.45 lb | | Box Dimensions (LxWxH) | 6.0 x 4.4 x 2.1" |
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