Listen Tech LR-500 Portable Programmable Display RF Receiver (Discontinued)
Part # LR-500-072
Model # LR-500

One of Listen's most sophisticated receivers, the Listen Tech LR-500 Portable Programmable Display RF Receiver offers the signature Look&Listen LCD Display that shows programming status, channel, lock, battery level, and RF signal strength.

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Description

Details

One of Listen's most sophisticated receivers, the Listen Tech LR-500 Portable Programmable Display RF Receiver offers the signature Look&Listen LCD Display that shows programming status, channel, lock, battery level, and RF signal strength. Channel selector buttons are easily accessible on the front of the unit. It has channel SEEK capability and is compatible with mono or stereo headsets. It takes AA batteries (alkaline or NiMH rechargeable). SmartCharge capabilities prevent overcharging. It's easy to use, easy to program.
 
This product is approved by the FCC for use in the US. Please note that they cannot be used in all countries. Check with your local government or specific regulation with regard to broadcast frequency in your specific country. Note: FCC rules limit the use of this product to assistive listening.

Features

Features

  • Superior Audio Quality - 80 dB signal-to-noise ratio
  • A choice between 57 channels, complete antenna and accessory options
  • Programmability - Unneeded channels can be locked
  • 100 % Digital - Listen receivers are digitally-tuned so transmission won't drift
  • Uses standard alkaline or NiMH batteries
  • Built in SmartCharge won't allow batteries to overcharge
  • Transformer charging plug or for the ultimate convenience drop in charging contacts
  • Limited Lifetime Warranty with hassle-free support
Specification
RF Frequency Range72.025 - 75.950 MHz
Number of Channels57 (17 wide, 40 narrow)
Sensitivity.6uV typical, 1 uV maximum for 12dB SINAD
Frequency Accuracy± .005% stability 32 to 122° F (0 to 50° C)
AntennaUses earphone cable
Antenna Connector3.5 mm connector
System Frequency Response63Hz - 15kHz (±3dB)
System Signal to Noise Ratio(A-weighted)SQ enabled: 80dB; SQ disabled 60d
System Distortion<2% total harmonic distortion (THD) at 80% deviation
Output3.5 mm connectors, unbalanced, 0dBu nominal output level,16mW maximum, impedance 32 Ohms
Set Up ControlsProgrammable channel selection (see below), alkaline/NiMH batteriesand squelch, SQ enable/disable
User ControlsVolume, channel UP/DOWN, SEEK. All controls except volume are electronicallylockable
LCD DisplayIndicates channel,RF signal strength,lock status, squelch,battey power level and channel programming
Battery TypeTwo AA batteries, alkaline or NiMH
Battery Life (Listen batteries)30 hours alkaline (LA-361), 15 hours NiMH rechargeable (LA-362)
Power Supply Connector2.3 mm OD by 0.7 mm ID, barrel type connector. 7.5VDC, center positive <250mA
Temperature - Operation14 to 104° F (10 to 40° C)
Temperature - Storage-4 to 122° F (-20 to 50° C)
Humidity0 to 95% relative humidity, non-condensing
Dimensions
(H x W x D)
5.0" (127 mm) x 3.0" (76 mm) x 1.0" (25 mm)
Unit Weight0.24 lbs (0.109 kg)
Shipping Weight1.0 lbs (453.6 kg)
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