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Listen Technologies LT-700-216 Portable Display RF Transmitter, 216 MHz

SKU: LTLT700216

This item is no longer available.

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Listen Technologies LT-700-216 Specifications

Audio
  • Frequency Response

    50 - 10 kHz ( +/-3 dB)

  • Signal-to-Noise Ratio

    SQ enabled: 80 dB; SQ disabled 60 dB

  • Distortion

    < 2% total harmonic distortion (THD) at 80% deviation

  • Microphone Input

    Unbalanced, tip of 3.5 mm connector, -45 dBu nominal input level, -30 dBu maximum, impedance 20k Ohms

  • Microphone Sensitivity

    Three position switch: high, middle, and low; 6db increments

  • Microphone Power

    5VDC Bias

  • Line Input

    Unbalanced, ring of 3.5mm connector, -10dbu nominal input level, -3dbu maximum, impedance 10K ohms

Controls

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  • User Controls

    Power, mute, channel UP/DOWN, Mic sensitivity, NiMH/alkaline battery, SQ enable/disable

  • Programming

    Channel Lock out,Channel lock

Indicators

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  • LCD

    Channel Designation, lock status, signal strength indication, battery life, RF Power

  • LEDs

    Red, illuminated when unit is on. Flashes when batteries are low, or to indicate charging. Flashes when muted

  • Frequency Range

    216.0125 - 216.9875 MHz

  • Number of Channels

    19 wide band, 38 narrow band

  • Frequency Accuracy

    +/- .005% stability 32 to 122 Degree (0 to 50 Degree C)

  • Antenna Type

    Microphone cable

  • Transmitter Stability

    50 PPM

  • Transmission Range

    From 0 to 150 ft. (45.7 m)

  • Antenna Connector

    3.5 mm connector

  • Output Power

    Less than 100mW

  • Number of Simultaneous Transmitters

    3

  • Power Supply

    I/P 120VAC; O/P 7.5VDC 250 mA; Drop in contact points for use with charging cases. Power supply 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

  • Battery Type

    Two 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

  • Compliance

    RoHS, WEEE, UL, PSE, CE, CUL, TUV, CB compliant

Environmental

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  • Temperature - Operation

    14 Degree F (-10 Degree C) to +104 Degree F (40 Degree C)

  • Temperature - Storage

    -4 Degree F (-20 Degree C) to +122 Degree F (50 Degree C)

  • Relative Humidity

    0 to 95% relative humidity, non-condensing

Compliance

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  • Safety

    RoHS

  • RF

    FCC Part 15, Industry Canada

Physical

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  • Door

    Manually lockable, controls accessible through doors

  • Color

    Dark Gray with white silk screening

  • Compatibility

    LA-208, LA-277, LR-100-216, LR-400-216, LR-500-216, LR-5200-216-P1, LR-5200-216, LR-4200-216-P1, LR-4200-216, LP-40-216, LP-41-216, LP-50-216, LP-51-216

  • Dimensions (W x H x D)

    3 x 5 x 1" (7.6 x 13 x 2.5cm)

  • Weight

    3.9 oz (111g)
    With Batteries: 5.8 oz (164g)

About Listen Technologies LT-700-216

The Listen LT-700 Portable 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 is excellent 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. With the many features of the LT-700, portable transmission has never been easier for users!

Architectural Specs
The portable RF display transmitter shall be capable of broadcasting on 57 channels. The unit shall incorporate a microphone sensitivity switch. The device shall broadcast on both wide and narrow band channels with a SNR of 80 dB or greater.

The device shall have an audio frequency response of 50 Hz to 15 KHz, ' +/-3 dB at 72 MHz, or of 50 Hz to 10 kHz, ' +/-3 dB at 216 MHz. The device will incorporate a mute switch. The battery door shall be capable of being mechanically locked. The device shall incorporate an LCD display that indicates channel, battery level, low battery, battery charging, and RF signal strength.

The portable transmitter shall incorporate automatic battery charging circuitry for recharging of NiMH batteries, with the ability to charge via a wall transformer or drop in charging case. The Listen LT-700-072 or LT-700-216 is specified.

Listen Technologies LT-700-216 Features

  • Superior Audio Quality - 80 dB signal-to-noise ratio, setting the industry's sound quality standard
  • A choice between 57 channels, complete antenna and accessory options make Listen products ideal 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
  • Mute switch
  • Mic and/or line level inputs

Key Features

  • Superior Audio Quality - 80 dB signal-to-noise ratio, setting the industry's sound quality standard
  • Look & Listen LCD shows channel, battery status, and programming information
  • Transmit up to three (3) channels simultaneously.
  • Uses standard alkaline or NiMH batteries
  • Transformer charging plug or drop in charging contacts
  • Mute switch

What's in the box:

  • LT-700-216 Portable Display RF Transmitter (216 MHz)
  • Owner's Manual (72 MHz & 216 MHz)
  • Listen Technologies Lifetime Limited Warranty