Description
The AMCOM™ III 2830A-12 Three-Diver Portable Communicator with DSP3 Helium Speech Unscrambler is designed for both air and mixed gas diving, offering hard-wired, three-diver communication with advanced digital technology. Equipped with an Outdoor AC Power Module and International Locking Power Cord, this unit features cutting-edge enhancements for superior performance.
The Helium Speech Unscrambler (HSU) utilizes state-of-the-art digital signal processing to convert raw helium speech into clear, intelligible voice communication. The improved Treble Boost provides precise control over high-frequency gain, while the Depth Control’s multi-turn potentiometer allows fine-tuning for enhanced speech quality. The Noise Reduction Filter (NRF) employs advanced algorithms to minimize background noise without compromising speech clarity.
Innovatively combining frequency and time-domain technologies, the HSU ensures real-time audio processing, making it the first of its kind. Its robust digital design delivers features such as helium speech correction, advanced treble boosting, and complex noise reduction.
The communicator offers independent channels and volume controls for each diver and the tender, allowing customizable uplink and downlink configurations for optimal comfort and performance.
The latest AMCOM™ III model maintains its renowned rugged durability, user-friendly interface, and exceptional sound quality while introducing several new digital enhancements:
High-Audio Fidelity
Extended Battery Life
Flexible Gain Settings
Ultra-Low Electromagnetic Interference (EMI)
Helium Speech Unscrambler (HSU):
Integrated into the communicator’s option panel, the HSU uses advanced digital signal processing to transform raw helium speech into clear, intelligible audio.
Depth Control: Multi-turn potentiometer enables precise tuning for optimal speech quality.
Noise Reduction Filter (NRF): Reduces background noise by up to 17 dB using sophisticated DSP algorithms, without affecting diver speech clarity.
Real-Time Audio Processing: Combines frequency and time-domain technologies for superior performance at various depths and noise levels.
Treble Boost Control: Enhances high-frequency audio for clearer communication.
Independent Channels and Volume Controls:
Separate controls for each diver and the tender allow for personalized earphone, microphone, and equipment adjustments.
Flexible Umbilical Settings:
Supports 4-wire mode (full duplex), 2-wire mode (push-to-talk), or a combination of both for any diver.
Microphone Compatibility:
Automatically detects and adjusts for dynamic or pre-amplified diver microphones to ensure optimal volume levels.
Weatherproof Push-to-Talk Microphone:
Designed for top-side clarity. See the Tech Note for additional recommended equipment.
Integrated Charger:
The internal charger enables simultaneous operation and charging, protects the battery from overcharging, and ensures uninterrupted performance when AC power is unavailable.
Input Impedance (Each Input): 250 Ohms
Frequency Response: 300 - 10,000 Hz
Common Mode Rejection: 40 dB Minimum
Current Drain (Max, Full Volume): 3 Amps
Quiescent Current Drain: 0.190 Amps
Output Impedance: 4 Ohms
Power Supply Voltage: 12 VDC Nominal (9-16 V Range)
AC Power Operating Range: 90-264 VAC, 50-60 Hz
Sensitivity (Input): 5 mV
Output Power (RMS @ 4 Ohm Load, 12 VDC): 10 Watts Audio
Battery Life: 29 hours
Dimensions: 10" H x 9" W x 14.5" L (25.4 cm x 22.9 cm x 36.8 cm)
Weight: 17.45 lbs (7.92 kg)
INCLUDED WITH THE COMMUNICATOR:
The AMCOM™ III 2830A-12 Three-Diver Portable DSP3 Helium Speech Unscrambler comes with:
Amron 2405-28 Hand-Held Push-to-Talk Microphone
Amron 2890-05 12 VDC Sealed Lead Acid Gel-Cell Rechargeable Battery with Slide Terminals
Amron 283XA-UM Three-Diver Portable Communicator User Manual
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