The LR-400-072 Portable Display RF Receiver is a lower cost digital display receiver. It has the same exceptional audio quality and convenient recharging options as Listen’s other full-featured receivers. The LR-400-072 can receive up to 17 wide band channels with 40 narrow band. The LR-400-072 has a digital display (LCD) to monitor channel selection, battery level, and signal strength. An LED on top of the receiver indicates if the unit is on, when batteries are low or if the unit is locked on a channel. It has channel SEEK capability and is compatible with mono or stereo earphones. 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.
Note:
- The full product specifications below are from the manufacturer and may contain information related to other package quantities that will not apply to the product that you are reviewing. Please confirm the actual content and/or package quantity from the main product specifications page.
- These specifications may represent the entire product series/model/line to which this product belongs with specific configuration differences between the individual products stated.
- These specifications may have been copied from the same product in other region/country in which case there might be minor differences in region-specific data such as Input Voltage, Terms of Warranty etc.
Audio
Frequency Response: 50 Hz - 15 kHz (±3 dB)
Signal-to-Noise Ratio: SQ enabled 80 dB, SQ disabled 60 dB
Audio Output Jacks: 3.5 mm (0.14 in.) connectors, unbalanced, 0 dBu nominal output level, 16 mW maximum, impedance 32 ohm
Distortion: < 2% total harmonic distortion (THD) at 80% deviation
Controls
User Controls: Channel up/down, SEEK, volume, Alkaline/NiMH batteries, SQ enable/disable
Programming: Channel lock, squelch
Indicators
LCD: Channel designation, battery level, battery charging, RF signal strength and channel lock
LEDs: Red, illuminated when unit is on, flashes when batteries are low or to indicate charging, flashes when locked and SEEK is pushed
RF
Frequency Range: 72.025 - 75.950 MHz
Number of Channels: 17 wide band, 40 narrow band
Sensitivity: .6uV typical, 1 uV maximum for 12 dB sinad
Frequency Accuracy: ± .005% stability 32 to 122 ºF (0 to 50 ºC)
Squelch: Programmable in 20 steps, automatic on loss of RF signal
Antenna Type: Uses earphone cable
Power
Power Supply: I/P 120 VAC; O/P 7.5 VDC 250 mA, drop in contact points for use with charging cases, power supply not included (LA-208)
Power Supply Connector: 0.09 in. (2.3 mm) OD by 0.7 mm ID, barrel type connector 7.5 VDC, center positive < 250 mA, drop in contact points for use with Listen charging cases
Battery Type: Two (2) AA batteries, alkaline or NiMH
Battery Life: 30 hours alkaline (LA-361), 15 hours NiMH rechargeable (LA-362)
Battery Charging Time: Fully automatic, 13 hours
Compliance: RoHS, WEEE, UL, PSE, CE, CUL, TUV, CB
Physical
Width: 2.75 in. (7.0 cm)
Height: 4.25 in. (10.8 cm)
Length: 1.50 in. (3.8 cm)
Unit Weight with Batteries: 5.8 oz (164 g)
Shipping Weight: 1.0 lbs. (0.5 kg)
Weight: 3.9 oz (111 g)
Door: Manually lockable, SEEK/channel select behind the door
Environmental
Temperature - Operation: 14 to 104 ºF (-10 to 40 ºC)
Temperature - Storage: -4 to 122 °F (-20 to 50 °C)
Relative Humidity: 0 to 95% relative humidity, non-condensing
Compliance
Safety: RoHS
RF: FCC Part 15, Part 90, Industry Canada