Listen Tech LR-4200-IR Intelligent DSP IR Receiver
TheLR-4200-IR receiver from Listen Technologies offers outstanding audio clarityand quality with the best range and reception in its class. Part of ourIntelligent Digital Signal Processing (iDSP) line, the LR-4200-IR is the smallestdevice 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 DSPloop driver offers an improved listening experience for anyone with aT-coil-equipped hearing aid. Dual 3.5mm output jacks also allow receivers to beshared between users.
Key Features
- high-performanceIR receiver offering best-in-class sensitivity and range
- Integratedneck loop/lanyard with DSP loop driver for an enhanced T-coil listeningexperience
- Smallestdevice of its kind makes it easier to wear and use and for venues to dispense,store and maintain
- OLED displayshowing channels, battery status, channel status, volume level, and more
- Limitedlifetime warranty with hassle-free support
- Lanyard andbelt clip options offer convenient and discreet choices for the end user
- Advancedrechargeable battery technology eliminates the costs and hassles associatedwith frequent battery replacement
- Designed forsingle-channel applications
TechnicalSpecifications
Audio
System Distortion
<2%total harmonic distortion (THD) at 80% deviation
Audio Output Jacks
Two (2) 3.5mm (0.14 in.) connectors, unbalanced, 0 dBu nominal output level, 16 mWmaximum, impedance 32 ohm, accepts mono or stereo phone plug or LA-430Intelligent Ear Phone/Neck Loop Lanyard
System Frequency Response
63 Hz – 15kHz (-3 dB)
System Signal to Noise Ratio
> 60 dB
Controls
User Controls
Power on/offand volume up/down
Programming
Via softwareand USB port, Auto Seek, Jack Sense, Squelch, Auto Power, Auto Off, Stereo,Brightness, Channel Name
Set-up Controls
Press andhold up/down volume buttons for 5 seconds to enterchannel adjust, use up/downto select channel
Indicators
Display
OLED -Channel designation, battery level, unit number, charging status, volume status
LED
Flashes whenbatteries are low or to indicate charging, solid when fully charged
RF
Carrier Frequencies
2.3 MHz, 2.8MHz, 3.3 MHz, 3.8 MHz
Number of Channels
Four (4)selectable channels
Frequency Accuracy
.005%stability 32 to 122 F (0 to 50 C)
Modulation
FM Wideband,-50 kHz deviation max, 50 uS de-emphasis
IR
Coverage Area
30,000 ft(2787 m) single channel with LT-84/LA-141 or 40,000 ft (3716 m) singlechannel with LT-82/LA-140
Squelch
Programmablein 20 steps, automatic on loss of IR signal
Power Save Mode
Turns unitoff after a specified time of no IR signal, default is 30 minutes
Sensitivity
Better thanone (1) nW/cm2 @40 dB SNR
Power
Power Supply
Micro USBconnector, 5 V, 500 mA
Battery Type
Lithium Ion
Battery Life
8 Hours oftypical use
Battery Charging Time
Fullycharged in 2.5 Hours
Physical
Color
Flat Black
Unit Weight with Batteries
2.8 oz.(79.4 g)
Shipping Weight
3.5 oz.(99.2 g) with a 1 lbs. (0.45 kg) minimum
Dimensions (H x W x D)
3.75 x 2.0 x0.64 in. (9.6 x 5.0 x 1.7 cm)
Unit Weight
1.9 oz.(53.9 g)
Dimensions with Belt Clip
3.75 x 2.0 x0.80 in. (9.6 x 5.0 x 2.1 cm)
Environmental
Temperature – Operation
14 to 104 F(-10 to 40 C)
Temperature – Storage
(-)4 to 122F (-20 to 50 C)
Relative Humidity
0 to 95%relative humidity, non-condensing
Compliance
Standards
FCC Part 15,ICS-03, CE, RoHS, WEEE, ADA 706, CBC 11B-706
