The Advanced Intelligent DSP RF Receiver from Listen Technologies is an advanced iDSP IR receiver. It features DSP SQ noise reduction technology, allowing users to experience 20 dB less noise and hiss. A field-replaceable, Lithium-ion battery is included with the unit. The integrated neck loop/lanyard with DSP loop driver improves the listening experience for T-coil users.
The unit has an OLED display to program channel names, monitor battery status, channel status, and charge activation. Programmable channel select button allows user to cycle through active channels, seek to, or lock to a channel. Connect the iDSP neck loop/lanyard or ear phones via two 3.5mm output jacks (ear phones could be shared). The micro-USB connection is used with the included iDSP software for charging, set up, programming, inventory management, and firmware updates.
- Advanced DSP SQ noise reduction technology delivers 20 dB less noise and hiss
- Integrated neck loop/lanyard with DSP loop driver improves the listening experience for T-coil users
- Can be worn around the neck, with the belt clip, or concealed in a pocket
- Use for multi-channel applications
In the Box
Listen Technologies Advanced Intelligent DSP RF Receiver (72 MHz)
| Audio |
| Frequency Response | 50 Hz to 15 kHz (�3 dB) |
| Signal to Noise Ratio | SQ enabled 80 dB, SQ disabled 60 dB |
| Distortion | <2% total harmonic distortion (THD) at 80% deviation |
| Audio Output Jacks | 2 x 3.5 mm connectors, unbalanced, 0 dBu nominal output level, 16 mW maximum, impedance 32 ohm |
| Controls |
| User Controls | Power, up/down volume, Listen button for end user channel selection |
| Set-Up | Press and hold up/down volume buttons for 5 seconds to enter channel adjust, use up/down to select channel |
| Programming | Via software and USB port |
| Indicators |
| Display | Channel designation, battery level, unit number, charging status |
| LEDs | Flashes when batteries are low or to indicate charging, solid when fully charged |
| RF Specification |
| Frequency Range | 72.025 to 75.95 MHz |
| Number of Channels | 17 wideband, 40 narrowband |
| 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 ear phone/neck loop lanyard and short ear phone cable or standard earphone cable |
| Squelch | Programmable in 20 steps, automatic on loss of RF signal |
| Power |
| Battery Type | Lithium-ion 3.7 VDC, 1200 mAh |
| Battery Life | 8 hours of continuous use |
| Battery Charging Time | Fully charged in 2.5 hours |
| Power Supply | Micro-USB connector, 5 V, 500 mA |
| Environmental |
| Operating 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 | Flat black |
| Dimensions | Unit: 3.75 x 2 x 0.64" (9.6 x 5 x 1.7 cm)
Unit with Belt Clip: 3.75 x 2 x 0.80" (9.6 x 5 x 2.1 cm) |
| Weight | Unit: 1.6 oz (45 g)
Unit with Batteries: 2.4 oz (68 g) |
| Packaging Info |
| Package Weight | 0.2 lb |
| Box Dimensions (LxWxH) | 4.3 x 2.4 x 1.2" |
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