Amron 3-DV Rackmount Communicator DSP3 HSU, AC Power, Internal Charger
Features
- Helium Speech Unscrambler (HSU) is conveniently installed in the option panel of this portable communicator incorporates a state-of-the-art digital signal processor to correct raw helium speech to clear, intelligible voice. The Depth Control can be finely-tuned using a multi-turn potentiometer providing the tender with better speech quality.
- The Noise Reduction Filter (NRF) uses a complex Digital Signal Processor algorithm to capture the background noise and reduce it without affecting the diver’s speech. Noise reduction levels can be reduced by up to 17 dB.
- Real-time audio processing uses both frequency and time domain technologies for optimized performance over a wide range of depths and background noise.
- Improved Treble Boost Control feature allows for optimum frequency enhancement and improved intelligible speech from the diver’s voice.
- Separate channels and volume controls for each diver and tender to accommodate individual earphone and microphone adjustments, equipment variations and individual comfort levels.
- Divers’ umbilicals can be set up on 4-wire mode (full duplex) or 2-wire mode (push-to-talk) or any combination of the two modes for each diver.
- Communicator comes standard with rear mounted MS connector, providing connections to diver and tender inputs and outputs.
- Ability to use both dynamic and pre-amplified diver microphones with a unique circuit that detects microphone type and automatically adjusts volume levels.Weatherproof push-to-talk microphone for better voice intelligibility topside. For optimum clarity, see Tech Note (below) for other recommended equipment.
- Battery Condition Indicator – Visual LED indicator of battery condition.
- Internal charging system with battery back-up allows for simultaneous charging and operation of the unit while protecting the rechargeable battery from being overcharged. Back-up battery automatically supplies power to the audio amplifier when AC power is disconnected to allow for continued operation up to 29 hours.
Specifications
- Input Impedance (Each Input): 250 ohms
- Frequency Response: 300 to 10,000 hz
- Common Mode Rejection: 40 dB minimum
- Current Drain Maximum Full Volume: 3 amps
- Minimum Quiescent: 0.190 amps
- Output Impedance: 4 ohms
- Power Supply Voltage: 12 VDC nominal (9 volts minimum – 18 volts maximum)
- AC Voltage Range: 90-264 VAC, 50-60 hz
- Sensitivity (Input): 0.5 mV
- Output Power (RMS @ 4 Ohm Load, 12 VDC) : 10 watts audio
- Dimensions: H 7 in. (17.78 cm) x W 19 in. (48.26 cm) x D 12.5 in. (31.75 cm)
- Weight: 19.5 lb. (8.8 kg)
