Product Overview
Compatible with any of Listen's headphone options, the LR-400-72 three-channel digital RF (radio frequency) receiver is an easy, affordable way for businesses and venues to provide assistive listening services for their customers. The units have a simple easy to use layout and can be easily carried, worn, or stored when not in use. The LR-400-072 can receive up to 17 wide-band or 40 narrow-band channels for flexibility and features an LCD display, channel seek capabilities, and compatibility with mono or stereo headphones for added convenience.
Includes
- One (1) LR-400 Portable Display RF Receiver
- One (1) Quick reference card
Features
- Channel-seek capability
- Compatible with mono and stereo headphones
- Limited lifetime warranty
- Cost-effective solution to beginning or expanding your RF assistive listening system
- Can receive up to 17 wide-band or 40 narrow-band channels
Specifications
- 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
