Listen Technologies LR-4200-216 Intelligent DSP RF Receiver | 216 MHz
Listen Technologies LR-4200-216 Intelligent DSP RF Receiver | 216 MHz
SoundPro Item: 73026 | Part Number: LR-4200-216
Usually ships in 5-7 business days
- High Performance RF Sensitivity Captures Signals In Challenging Venue Environments
- Integrated Digital Signal Processing Loop Driver Enhances T-Coil Audio Quality
- Dual Output Jacks Enable Two Users To Share A Single Receiver Unit
- Micro USB Connectivity Simplifies Charging And Firmware Updates Without Proprietary Hardware
- Rechargeable Lithium-Ion Cells Eliminate Disposable Battery Replacement Costs
- OLED Screen Provides At-A-Glance Channel And Battery Status Information
Designed for venues that demand reliable assistive listening without burdening users or staff, this receiver combines best-in-class RF sensitivity with a pocket-sized profile that simplifies distribution and storage. The integrated lanyard doubles as a neck loop with digital signal processing circuitry, providing T-coil users a cleaner audio path than passive induction accessories. Dual headphone jacks enable two listeners to share one unit during guided tours or side-by-side training sessions.
Installation teams benefit from micro USB connectivity that supports both charging and firmware updates through standard ports, eliminating proprietary docking hardware. The OLED screen displays channel selection, volume, and charge level without requiring the user to navigate complex menus. Lithium-ion cells deliver eight-hour runtime and recharge fully in two hours, reducing the operational cost and environmental impact of disposable batteries.
Built for lecture halls, conference centers, and worship spaces operating in the 216 MHz spectrum, this receiver balances portability with the RF performance required for large-venue coverage. Its sub-three-ounce weight and belt clip option make it unobtrusive for attendees who need amplification throughout extended programs.
- Audio
- System Distortion: < 2% total harmonic distortion (THD) at 80% deviation
- Output/s: Two (2) 3.5 mm (0.14 in.) connectors, unbalanced, 0 dBu nominal output level, 16 mW maximum, impedance 32 ohm
- System Frequency Response: 50 Hz - 15 kHz (±3 dB)
- System Signal to Noise Ratio: SQ enabled 70 dB, SQ disabled 50 dB
- Controls
- User Controls: Power, up/down volume
- Programming: Via software and USB port
- Set-up Controls: Press and hold up/down volume buttons for 5 seconds to enter channel adjust, use up/down to select channel
- Indicators
- LEDs: White, illuminated when unit is on, flashes when batteries are low or to indicate charging, solid when fully charged
- Display: Channel designation, battery level, unit number, charging status
- RF
- Frequency Range: 216.0125 - 216.9875 MHz
- Number of Channels: 19 wide band, 38 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 ear phone/neck loop lanyard and short ear phone cable or standard earphone cable
- Power
- Power Supply: Micro USB connector, 5 V, 500 mA
- Battery Type: Lithium-ion
- Battery Life: 8 Hours of continuous use
- Battery Charging: Time Fully charged in 2 Hours
- Physical
- Color: Dark Grey
- Unit Weight with Batteries: 2.4 oz (68.1 g)
- Shipping Weight: 3.2 oz (90.8 g) with 16 oz (454 g) minimum
- Dimensions (H x W x D): 3.75 x 2 x 0.64 inches (9.6 x 5 x 1.7 cm)
- Unit Weight: 1.6 oz (45.4 g)
- Dimensions with Belt Clip: 3.75 x 2 x 0.8 inches (9.6 x 5 x 2.1 cm)
- Environmental
- Operation Temperature: 14 to 104 ºF (-10 to 40 ºC)
- Storage Temperature: (-)4 to 122 °F (-20 to 50 °C)
- Relative Humidity: 0 to 95% relative humidity, non-condensing
- Compliance Standards FCC Part 15, Part 90, Industry Canada, RoHS
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