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Listen Technologies Portable Display RF Receiver (72 MHz)
Listen Technologies Portable Display RF Receiver (72 MHz)
B&H # LILR400072 MFR # LR-400-072
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Product Highlights
- 57 Channels
- 100% Digitally-tuned Receiver
- LCD Display Indicators
- Uses Standard Alkaline or NiMH Batteries
- Built-in SmartCharge
- Drop-in Charging Contacts
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Listen Technologies LR-400-072 overview
- 1Description
The Portable Display RF Receiver from Listen Technologies is a 72 MHz receiver. It can receive up to 57 channels and 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.
- 80 dB signal-to-noise ratio (SNR)
- Listen receivers are digitally-tuned so the transmission won't drift
- Look & Listen LCD shows channel, battery status, signal strength, and programming information
- Built in SmartCharge won't allow batteries to overcharge
- Drop in charging contacts for any of Listen's many charging cases or a charging plug on the side of the unit
UPC: 819267022188
In the Box
Listen Technologies Portable Display RF Receiver (72 MHz)
Table of Contents
- 1Description
Listen Technologies LR-400-072 specs
| RF Specification | |
|---|---|
| RF Frequency Range | 72.025 to 75.950 MHz |
| Number of Channels | 17 wide band, 40 narrow band |
| Sensitivity | 0.6 uV typical, 1 uV maximum for 12 dB SINAD |
| Frequency Accuracy | ± .005% stability +32 to 122°F (0 to 50°C) |
| Antenna Type | Uses earphone cable |
| Squelch | Programmable in 20 steps, automatic on loss of RF signal |
| Audio | |
|---|---|
| Frequency Response | System: 50 Hz to 15 kHz (±3 dB) |
| Signal to Noise Ratio | System, A-Weighted: SQ enabled 80 dB, SQ disabled 60 dB |
| System Distortion | <2% total harmonic distortion (THD) at 80% deviation |
| Audio Output Jack | 3.5 mm connectors, unbalanced, 0 dBu nominal output level, 16 mW maximum, impedance 32 ohm |
| Controls | |
|---|---|
| User Controls | Channel UP/DOWN, SEEK (all controls except volume are lockable) |
| Programming | Channel lock, squelch |
| Indicators | |
|---|---|
| LEDs | Red, illuminated when unit is on, flashes when batteries are low or to indicate charging, flashes when locked and SEEK is pushed |
| LCD | Channel designation,battery level, battery charging, RF signal strength and channel lock |
| Power | |
|---|---|
| Battery Type | 2 x AA batteries, alkaline or NiMH |
| Battery Life | 30 hours alkaline, 15 hours NiMH rechargeable |
| Battery Charging Time | Fully automatic, 13 hours |
| Power Supply | I/P 120 VAC, O/P 7.5 VDC 250 mA, drop in contact points for use with charging cases |
| Power Supply Connector | 0.09 OD by 0.02" ID (2.3 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 | 12 VDC, connected via terminal block |
| Battery Charging | Trickle charge of optional 12 VDC battery through terminal block connection |
| Compliance | RoHS, WEEE, UL, PSE, CE, CUL, TUV, CB |
| Environmental | |
|---|---|
| Operation Temperature | 14 to 104°F (-10 to 40°C) |
| Storage Temperature | -4 to 122°F (-20 to 50°C) |
| Humidity (Non-Condensing) | 0 to 95% relative humidity |
| Physical | |
|---|---|
| Color | Dark gray with white silk screening |
| Doors | Manually lockable, SEEK/channel select behind the door |
| Dimensions | 4.25 x 2.75 x 1.5" (10.8 x 7 x 3.8 cm) |
| Weight | Unit with Batteries: 5.8 oz (164 g) |
| Packaging Info | |
|---|---|
| Package Weight | 0.45 lb |
| Box Dimensions (LxWxH) | 6.0 x 4.3 x 2.1" |
Listen Technologies LR-400-072 Q&A
Listen Technologies LR-400-072 accessories
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