The Listen Tech LR-400 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.
| RF | |
|---|---|
| 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) |
| Antenna | Uses earphone cable |
| Squelch | Programmable in 20 steps, automatic on loss of RF signal |
| Compliance | FCC Part 15, Part 90, Industry Canada, RoHS |
| Audio | |
| System Frequency Response | 50 Hz - 15 kHz (±3 dB) |
| System Signal to Noise Ratio | SQ enabled 80 dB, SQ disabled 60 dB |
| System Distortion | |
| Output | 0.14" (3.5 mm) connectors, unbalanced, 0 dBu nominal output level,16 mW maximum, impedance 32 ohm |
| Controls | |
| User Controls | Channel up/down, SEEK, volume |
| Set-up Controls (Battery Compartment) | Alkaline/NiMH batteries, SQ enable/disable |
| Programming | Channel lock, squelch |
| Indicators | |
| LED | Red, illuminated when unit is on, flashes when batteries are low or to indicate charging |
| LED | Flashes when locked and SEEK is pushed |
| Display | Channel designation, battery level, battery charging, RF signal strength and channel lock |
| Battery Type | Two (2) AA batteries, alkaline or NiMH |
| Battery Life (Listen Batteries) | 30 hours alkaline (LA-361), 15 hours NiMH rechargeable (LA-362) |
| Battery Charging (NiMH only) | Fully automatic, 13 hours |
| 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 Connector | 0.09" (2.3 mm) OD by 0.7 mm ID, barrel type connector 7.5 VDC |
| Power Supply Connector | center positive |
| Power Supply Compliance | RoHS, WEEE, UL, PSE, CE, CUL, TUV, CB |
| Environmental | |
| Temperature - Operation | 14 to 104 ºF (-10 to 40 ºC) |
| Temperature - Storage | (-)4 to 122 °F (-20 to 50 °C) |
| Humidity | 0 to 95% relative humidity, non-condensing |
| Physical | |
| Color | Dark Grey with white silk screening |
| Door | Manually lockable, SEEK/channel select behind the door |
| Dimensions (H x W x D) | 4.25" (108 mm) x 2.75" (70 mm) x 1.50" (38 mm) |
| Weight | 0.24 lbs (111 g) |
| Weight with Batteries | 0.36 lbs (164 g) |
| Shipping Weight | 0.38 lbs (173 g) |
Usually arrives in 5-9 business days.
Usually arrives in 5-9 business days.
