The LR-400 Portable Display FM Receiver is a lower cost digital display receiver. It has exceptional audio quality as Listen's full-featured receivers and the same convenient recharging options. The LR-400 can receive up to 17 wide band channels along with 40 narrow bands (72 MHz). The LR-400 has a digital display (LCD) to monitor channel selection, battery level, and signal strength. An LED on top signifies if the unit is on, flashes when batteries are low or locked on a channel if it blinks while pushing SEEK.
Superior Audio Quality – 80 dB signal-to-noise ratio (SNR), setting the industry’s sound quality standard
A choice between 57 channels and many accessory options make Listen products ideal for a wide range of applications
100 % Digital – Listen receivers are digitally-tuned so transmission won’t drift; when you select a channel, it stays on that channel
Uses standard alkaline or nickel-metal hydride (NiMH) batteries.
Built in SmartCharge™ won’t allow batteries to overcharge. Charging circuitry is conveniently built into Listen’s receivers
Transformer charging plug or for the ultimate in convenience drop in charging contacts
Limited Lifetime Warranty with hassle-free support
Wireless Receiver Transmission - FM
Wireless - Yes
Spec Sheet available - Yes
RF Frequency Range 72MHz:
72.025 - 75.975 MHz
Number of Channels:
57 channels 17 wide band, 40 narrow band
Frequency Response:
.6 uV typical, 1 uV maximum for 12dB SINAD
Frequency Accuracy:
± .005 % stability 0-50 degrees C (32-122 degrees F)
Antenna:
Uses earphone cable
Squelch:
Programmable in 20 steps; automatic on loss of RF signal
Compliance:
FCC Part 15, Part 90, Industry Canada, RoHS
Frequency Response:
50 - 15,000 Hz - kHz ±3dB. All system specifications are end-to-end.
System Signal to Noise Ratio:
80 dB SQ enabled, A-weighted. SQ disabled: 60dB in 72MHz and 50dB in 216MHz. All system specifications are end-to-end .
System Distortion:
<2 % Total harmonic distortion (THD) at 80% deviation. All system specifications are end-to-end
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