Intelligent DSP RF Receiver (72 MHz)
$192.00
A high-performance RF receiver offering best-in-class sensitivity and low noise.
This product is available through authorized resellers.
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The LR-4200-072 receiver from Listen Technologies offers outstanding audio clarity and quality with the best range and reception in its class.
Part of our Intelligent Digital Signal Processing (iDSP) line, the LR-4200-072 is the smallest device of its kind, resulting in a compact unit that won’t burden the end user. An integrated neck loop/lanyard makes each receiver easy to wear, and the DSP loop driver offers an improved listening experience for anyone with a T-coil-equipped hearing aid. Dual 3.5mm output jacks also allow receivers to be shared between users.
Each receiver is equipped with a micro USB connection which can be used with free iDSP software for charging, set up, programming, inventory management and firmware updates.
Extended speaking sessions, presentations and more can be challenging for other devices, but the LR-4200-072 incorporates advanced Lithium-ion rechargeable batteries that offer long life and reliable power. Charge status, along with channel information and volume level, are easy to read on the integrated OLED display.
From classrooms to boardrooms, conferences and more, the LR-4200-072 is an outstanding receiver choice for any venue looking to offer convenient, reliable assistive listening.
Includes
One (1) LR-4200-072 Intelligent DSP RF Receiver (72 MHz)*
*The LR-4200-072 comes with a quick start guide and a non-proprietary field replaceable Lithium-ion battery.
Highlights
- High-performance RF receiver offering best-in-class sensitivity and 20dB less noise than other devices
- Integrated neck loop/lanyard with DSP loop driver for an enhanced T-coil listening experience
- Smallest device of its kind makes it easier to wear and use and for venues to dispense, store and maintain
- OLED display showing channels, battery status, channel status, volume level, and more
- Lanyard and belt clip options offer convenient and discreet choices for the end user
- Advanced rechargeable battery technology eliminates the costs and hassles associated with frequent battery replacement
- Designed for single-channel applications
Configurations
LR-4200-072 Intelligent DSP RF Receiver (72 MHz)
Architectural Specs
The RF receiver shall be capable of receiving on 57 wide and narrow band channels. The device shall tune to a single channel and user shall not be able to change the channel. The receiver shall have a signal-to-noise ratio of 80 dB or greater and shall have an audio frequency response of 50 Hz – 15 kHz (±3 dB). The device shall employ a unique DSP SQTM noise reduction technology. The unit shall have a programmable squelch circuit. The unit shall incorporate a multi-functional display that indicates battery status, inventory number and channel. The device shall have the option of being lanyard or belt clip worn and the lanyard shall have the option of an integrated neck loop. The device shall have a USB connector used for inventory control, set up, charging and firmware upgrades. The device shall incorporate automatic battery charging circuitry and use a non-proprietary lithium ion battery. The device shall have additional charging contacts to allow multiple charging options. The Listen LR-4200-072 is specified.
CAD file(s)
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| Q | What is the difference between the LR-4200 and the LR-5200? | |
| A | The main difference is that the LR-5200 is programmable with a multi-function Listen button. It gives the user an opportunity to program only the desired channels and lockout the unused channels. This makes it simple to operate for end users that need to select between multiple active channels. The Listen Button can also be used to search for an active channel and lock the receiver on a specific channel. | |
| Q | What is the purpose of Squelch? | |
| A | The purpose of squelch is to mute the audio output of your receiver when the signal from the transmitter is turned off or is too weak to be received. Without squelch you would hear radio noise in your earphone. The squelch function can be programmed to the desired setting. | |
| Q | What is the function of SQ? | |
| A | To reduce noise of the systems, Listen offers a noise reduction technology called ListenSQ™. Both the transmitter and receiver must have SQ on to achieve the desired results. If you are planning to use this product with older Listen systems or equipment not manufactured by Listen, you should disable SQ. | |
| Q | What type of battery technology does the LR-4200 use? | |
| A | The LR-4200 uses a non-proprietary field replaceable Lithium Ion battery. | |
| Q | How long does it take to fully charge the LR-4200? | |
| A | It varies dependent on the depletion of the battery. A fully depleted battery will charge in 2.5 hours or less. | |
| Q | How many LR-4200 receivers can I use in a system? | |
| A | As many as you need, the number is endless. | |
| Q | How long will the LR-4200 run on a fully charged battery? | |
| A | The LR-4200 will run continuously for 8 hours on a fully charged battery | |
Product Videos
My overall impression is very positive. The sound is clear and connects well with my telecoils. It is lightweight and comfortable on my neck. I like that I can open the loop to put it on and off my neck so I don't attract attention and I don't mess up my hair (vanity is so important! LOL).
