BACKGROUND Three types of ALS are in widespread use at the present time: Induction Loop (IL) systems, Frequency Modulated (FM) radio systems, and Infrared (IR) systems....
Search Results "Radiofrequency System"
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2. BACKGROUND
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4.33.7* TYPES OF LISTENING SYSTEMS
Audio loops and radio frequency systems are two acceptable types of listening systems....
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4.33.7* Types of Listening Systems
Assistive listening systems (ALS) are intended to augment standard public address and audio systems by providing signals which can be received directly by persons with special receivers...
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A4.33.7 TYPES OF LISTENING SYSTEMS
A listening system that can be used from any seat in a seating area is the most flexible way to meet this specification....
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A4.33.7 Types of Listening Systems
Radio frequency systems can be extremely effective and inexpensive....
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Domino Pro Listening System with Earbuds and Headphones (BE8005)
The transmitter also incorporates a stereo input for streaming high quality audio from your TV, MP3 player or stereo or PA system....
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Listen Technologies Advanced Intelligent DSP RF Receiver 6-Pack
Ideal for venues to upgrade an existing 72 MHz assistive listening systems or expand an iDSP Advanced System with six iDSP units. ...
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Listen Technologies iDSP Prime Level III Stationary RF System Personal Listening Product
The iDSP 72MHz receiver revolutionizes how an RF system works, offering precise clarity with 20 dB less hiss than other RF receivers. ...
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Sennheiser EK 2020-D-II-US Digital RF Body Pack Receiver
Six channel digital RF body pack receiver. Offers automatic on/off, easy volume and channel selection. Includes an internal integrated rechargeable battery. Features a 3.5 mm audio...
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Sennheiser EZL 2020-20L Charging Case for TourGuide Receivers and Transmitters
Features Charging bays for 20 HDE 2020-D receivers Charging bay for SK 2020-D Charging bay for BA 2015 spare battery Fast charging of all system components...
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Sennheiser SK 2020-D-US Rugged Transmitter
The SK 2020-D-US is ideal for guided tours. Combining the bodypack transmitter with a headworn microphone (available separately) allows total freedom of movement during a tour. The...
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Sennheiser SKM 2020-D-US Handheld Transmitter Microphone
The Tour guide 2020 series is the first digital RF wireless tour guide system in the ISM band, offering excellent audio quality and extremely reliable, interference-free communication....
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Sennheiser SR 2020-D-US Compact High-Tech Transmitter
Of course, you can connect microphones for announcements, and the system will even follow you on bus or boat tours. The transmitter is operated very easily and comfortably....