Amron 2830R-02 3-DV Rackmount Communicator DSP3 HSU, AC Power, Internal Charger

Enhancements

High Audio Fidelity: The ultra-low noise circuit with advanced noise suppression ensures crystal-clear speech. Automatic gain adjustment prevents distortion, enhances speaker protection, and improves audio quality. Bandwidth is increased by 47%.

Extended Battery Life: The audio amplifier uses a state-of-the-art Class-D digital audio power amplifier for low power dissipation and minimal heat, extending battery life by up to 32%.

Flexible Gain Settings: Adjustable gain settings adapt to various communication applications and environments.

Ultra-Low Electromagnetic Interference (EMI): Spread-spectrum and de-phase control techniques minimize EMI for seamless integration with diving systems.

Audio In/Out Connections: Standard RCA connections are provided for audio input and output, allowing easy integration with other devices. Two rack-mount communicators can be interconnected for redundancy or to double the number of users.

Features

Helium Speech Unscrambler (HSU): Installed in the option panel, this digital signal processor converts raw helium speech into clear, intelligible voice. A multi-turn potentiometer fine-tunes depth control for optimal speech quality.

Noise Reduction Filter (NRF): Employs advanced DSP algorithms to reduce background noise by up to 17 dB without affecting diver speech.

Real-Time Audio Processing: Combines frequency and time domain technologies for high performance across various depths and noise conditions.

Treble Boost Control: Enhances high-frequency sounds for improved voice intelligibility.

Individual Channel Control: Separate channels and volume controls for divers and tenders ensure personalized adjustments for comfort and equipment variations.

Umbilical Mode Flexibility: Supports 4-wire (full-duplex) or 2-wire (push-to-talk) configurations, or a combination of both for each diver.

Durable Connections: Rear-mounted MS connectors for diver and tender inputs/outputs.

Microphone Compatibility: Supports both dynamic and pre-amplified microphones with automatic volume adjustment.

Weatherproof Push-to-Talk Microphone: Improves topside voice clarity.

Battery Condition Indicator: Visual LED indicator shows battery status.

Internal Charging System: Allows simultaneous operation and charging, with a backup battery for uninterrupted operation up to 29 hours.

Input Impedance: 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 (9V min – 18V max)

AC Voltage Range: 90-264 VAC, 50-60 Hz

Input Sensitivity: 0.5 mV

Output Power: 10 watts RMS @ 4-ohm load, 12 VDC

Dimensions: H 7 in (17.78 cm) × W 19 in (48.26 cm) × D 12.5 in (31.75 cm)

Weight: 19.5 lbs (8.8 kg)

Included Components

AMCOM III 2830R-02 Three-Diver Rack Mount Communicator with DSP3 Helium Speech Unscrambler

(1) Amron 2405-28 Hand-Held Push-to-Talk Microphone

(1) Amron 2890-05 12 VDC Rechargeable Sealed Lead Acid Gel-Cell Battery

(1) MS-3106A-28-16P 20-Pin MS Connector

(1) MS-3057-16A Cable Clamp – Green

(1) Amron P-2392 Power Cord

(1) Amron 283XR-UM User Manual

Optional Accessories

Amron 2401-28 Deluxe Headset with Boom Mic

Amron 2460-28 Standard Headset with Boom Mic

Amron 2822-28 Remote Walk-and-Talk (4-wire mode)

Amron 2821-28 Remote Walk-and-Talk (2-wire mode)

Technical Note

Surface noise may transfer to divers when the tender uses the communicator’s panel speaker. To reduce topside noise, use the included 2405-28 Push-to-Talk Microphone. For optimal communications:

Use the 2401-28 Deluxe Headset with Boom Mic.

For tender mobility, pair the deluxe headset with 2822-28 (4-wire) or 2821-28 (2-wire) Remote Walk-and-Talk systems.

For standard air communication, order the 2830R-01 Three-Diver Rack Mount Communicator.