NEWLY DESIGNED ENHANCEMENTS:

• High Audio Fidelity
Ultra-low noise circuit combined with noise suppression circuitry produces crystal clear speech. Automatic gain adjustment will guard audio signal from distortion, enhance speaker protection and audio quality. Increases bandwidth 47%.

• Extended Battery Operation Time
Audio amplifier card deploys the state-of-the-art Class-D digital audio power amplifier. Has very low power dissipation, produces less heat, and extends battery life up to 32%.

• Flexible Gain Settings
The audio amplifier card has adjustable gain settings to accommodate different communication applications and environments.

• Ultra-Low Electromagnetic Interference (EMI)
EMI is achieved through spread-spectrum and de-phase control techniques providing for optimum integration with diving systems.

FEATURES:

• Diver umbilical connections on the front panel are 5-pin MS (Military Standard) connections.
• 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 to 4-wire mode (full duplex) or 2-wire mode (push-to-talk) or any combination of the two modes for any diver.
• 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.
• Internal charger allows for simultaneous charging and operation of the unit while protecting the rechargeable battery from being over-charged.  Automatically supplies power to the audio amplifier when AC power is disconnected to allow for continued operation.

SPECIFICATIONS:

• Input Impedance (Each Input): 250 Ohms
• Frequency Response: 300 - 10000 Hz
• Common Mode Rejection: 40 dB Minimum
• Current Drain Maximum Full Volume: 3 Amps
• Minimum Quiescent: 0.190 Amps
• Output Impedance: 4 Ohm
• Power Supply Voltage: 12 VDC Nominal (9 Volts Minimum - 16 Volts Maximum)
• AC Power Operating Range: 90-264 VAC, 50-60 Hz
• Sensitivity (Input): 0.5 mV
• Output Power (RMS @ 4 Ohm Load, 12 VDC): 10 Watts Audio
• Battery Life: 41 hours
• Dimensions: 10 in. H x 9 in. W x 14.5 in. L (25.4 cm x 22.9 cm x 36.8 cm)
• Weight (approx.): 18.25 lbs (8.28 kg)

INCLUDED WITH COMMUNICATOR:

AMCOM™ III 2830A-05 Three-Diver Portable Communicator with MS Connections includes:

• (1) Amron 2405-28 Hand-Held Push-to-Talk Microphone
• (1) Amron 2890-05 12 VDC Sealed Lead Acid Gel-Cell Rechargeable Battery with Slide terminals
• (1) Amron 283XA-UM Three-Diver Portable Communicator User Manual

AVAILABLE OPTIONS:

• Amron 2401-28 Deluxe Headset with Boom Mic
• Amron 2822-28 Remote Walk-and-Talk (4-wire mode)
• Amron 2821-28 Remote Walk-and-Talk (2-wire mode)
• Amron 2460-28 Standard Operator Headset with Boom Mic and Dual Banana Plugs

TECH NOTE:

All communicators will inherently transfer topside noise to the divers when the tender speaks directly into the communicator’s panel speaker. To eliminate background noise at the surface, use the 2405-28 Push-to-Talk Microphone, included with this model. For optimum communications, we recommend purchasing the 2401-28 Deluxe Headset with Boom Mic for topside operation. For tender mobility, use the 2401-28 Deluxe Headset with Boom Mic along with the 2822-28 Remote Walk-and-Talk (4-wire mode) or the 2821-28 Remote Walk-and-Talk (2-wire mode). For wireless tender communications, order the 2830A-16 Three-Diver Rechargeable Portable Communicator with MS Connectors and 28B Wireless Tender Option, Outdoor AC Power Module and International Locking Power Cord.