AMCOM III 2830A-09

Three-Diver Portable with MS Connections, Inhalation Noise Reduction,

Outdoor AC Power Module and Intl. Locking Power Cord

Ordering Code: 2830A-09

The AMCOM™ III 2830A-09 Three-Diver Portable Communicator with Inhalation Noise Reduction with Outdoor AC Power Module and International Locking Power Cord.

The all new INR module utilizes Amron’s latest digital technology to reduce and even eliminate diver inhalation noise at the discretion of the tender via individual INR adjustment controls and LED indicators located on the front panel. The INR LED indicators illuminate when the INR function is actively removing diver inhalation noise.

This INR communicator is supplied with a newly configured IP65 outdoor-rated AC power entry module, which accommodates country-specific locking (V-Lock) IP54 rated AC power cords. Simply select which V-Lock power cord you need at time of order.

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SKU 2830A-09 Category



  • Inhalation Noise Reduction (INR) allows the user to adjust or completely remove each diver’s inhalation noise.
  • Each diver has an individual INR adjustment control and LED indicator to control the level of noise reduction desired.
  • INR LED indicators illuminate when the INR function is actively removing the diver’s inhalation noise.
  • Diver umbilical connections on the front panel are 5-pin MS (Military Standard) connections.
  • Separate channels and volume controls for each diver and the tender allow individual earphone and microphone adjustments, equipment variations and comfort levels.
  • Weather resistant IP54 rated AC power module accommodates different country-specific V-Lock AC power cords, selected by the customer at time of order. Additional power cords can be ordered separately.
  • Support for 4-wire mode (full duplex) or 2-wire mode (push-to-talk) or any combination of the modes for any of the diver circuits.
  • Use dynamic or pre-amplified diver microphones – a unique circuit detects microphone type and automatically adjusts volume levels.
  • Weatherproof noise cancelling push-to-talk microphone for better tender voice intelligibility. For optimum clarity, see Tech Note(below) for other recommended equipment.
  • Internal charger supports charging and operation at the same time, prevents over-charging, and automatically switches to battery power when AC power is disconnected without interrupting operations.
  • Ultra-low EMI emissions provide for interference-free integration with other diving systems.


  • Input Impedance (each input) : 250 Ohms
  • Frequency Response : 300 – 10000 Hz
  • Common Mode Rejection : 40 dB Minimum
  • Current Drain @ Maximum Volume : 3 Amps
  • Minimum Quiescence : 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) : 5 mV
  • Output Power (RMS @ 4 Ohm Load, 12 VDC) : 10 Watts Audio
  • Battery Life : 32 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 : 17.25 Lbs. (7.82 Kg)


AMCOM™ 2830A-09 –Three Diver Portable Communicator with Inhalation Noise Reduction and MS Connections includes:

  • (1) Amron 2405NC-28 Noise Cancelling Hand-Held Push-to-Talk Microphone
  • (1) Amron 2890-0512 VDC Sealed Lead Acid Gel-Cell Rechargeable Battery with Slide Terminals
  • (1) Amron 283XA-UM Three-Diver Portable Communicator User Manual
  • (1) Amron V-Lock Country-Specific Power Cord

Contact Information



iSubC Diving Equipment Ltd
Units 10 Holly Close
Whitehills Business Park
Westby With Plumptons

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