Listen Technologies Digital IR 25 W Radiator

Listen Technologies Digital IR 25 W Radiator

Listen Technologies Digital IR 25 W Radiator

B&H # LIRAD25 MFR # RAD25
Listen Technologies Digital IR 25 W Radiator

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Expected availability: 7-14 business days

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  • 1Description

The Digital IR 25 W Radiator from Listen Technologies converts the digital, modulated signal from a transmitter into IR light. The unit is powered locally and has a coverage area up to 14,000 ft² with four mono standard quality channels (one carrier). Multiple radiators can be used for coverage of larger spaces and each radiator features independent delay compensation to adjust for cable length differences. When more channels and/or a higher channel quality and/or stereo signals are used, the coverage area of each radiator is reduced.

The radiator can broadcast up to 32 channels of mono audio, operates noise-free, indicates its status by the LED lights on the front of the unit, and employs Automatic Gain Control (AGC) to ensure maximum transmission efficiency. The radiator goes automatically into standby mode when the transmitter is switched off to extend the operating life of the LEDs. The radiator can be either ceiling-mounted, wall-mounted, or stand-mounted, and up to 30 digital radiators can be daisy-chained to reach up to 2,950 feet.

Up to 32 mono channels
Up to 14,000 ft2 radiator coverage
AGC for maximum transmission efficiency
Can be used in bright sunlight
Daisy-chain option
Automatic termination
Delay compensation
Noise-free operation
Automatic standby
Overheat protection
In the Box
Listen Technologies Digital IR 25 W Radiator
  • Power Line Cord
  • LA-391 RG-58 50 Ohm Preassembled Coaxial Cable - Per Linear Foot
  • 3 x Mounting Bolts and Nuts
  • Limited 2-Year Warranty
  • Table of Contents
    • 1Description
    Audio
    Frequency Response 20 Hz to 10 kHz (-3 dB)
    20 Hz to 20 kHz (-3 dB)
    THD <0.05% @ 1 kHz
    Cross Talk Attenuation: >80 dB @ 1 kHz
    Dynamic Range >80 dB
    Signal to Noise Ratio A Weighted: >80 dB
    Controls
    Push Buttons Two buttons (-/+) for selecting delay compensation
    Indicators
    LED Power, temperature protection, input signal, fault
    LCD Displays delay compensation setting
    Connections
    Socket Main: IEC socket with in-line fuse, matching mains cable
    Inputs HF BNC: 1 Vpp nominal, 10 mVpp minimum, 50 Ohms
    Outputs HF BNC: 1 Vpp, 6 VDC, 50 Ohms, 30 radiator daisy-chain, max cable length 2,950' (900 m)
    IR Interface
    Wavelength 870 nm
    Protocol DQPSK, according to IEC 61603-7
    Frequency Modulation:
    Carriers 0 to 5: 2 to 6 MHz (according to IEC 61603-7)
    Carriers 6 and 7: up to 8 MHz
    Frequencies 2.333, 3.000, 3.666, 4.333, 5.000, 5.666, 6.333 and 7.000 MHz
    Coverage Area Up to 14,000 ft2
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    Power Supply Voltage 110 VAC, 60 Hz
    Power Consumption 75 W nominal, 8 W standby
    Environmental
    Operating Temperature 32 to 113°F (0 to 45°C)
    Storage Temperature -40 to 158°F (-40 to 70 °C)
    Relative Humidity <95%
    Physical
    Color Black and white
    Mounting Ceiling, wall, or stand mounting
    Dimensions 9.65 x 17.72 x 5.71" (245 x 450 x 145 mm)
    Weight 11.1 lb (5.03 kg)

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