AMCOM II 2825A-13 Two-Diver Portable with

28B Wireless Tender Kit, Outdoor AC Power Module and International Locking Power Cord

Ordering Code: 2825A-13

The AMCOM™ II 2825A-13 Two-Diver Deluxe Portable Communicator features separate channels and volume controls for each diver and the tender so that uplink and downlink paths can be customized for varying equipment configurations and individual comfort levels.

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SKU 2825A-13 Category



  • 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.
  • 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 overcharged. Automatically supplies power to the audio amplifier when AC power is disconnected to allow for continued operation.


  • 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 : 45 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 : 16.95 Lbs. (7.69 Kg)


AMCOM ™ II 2825A-13 Two-Diver Deluxe Portable Communicator with Weather Resistant AC Power and Internal Charger includes:

  • (1) Amron 2405-28Hand-Held Push-to-Talk Microphone
  • (1) Amron 2890-0512 VDC Sealed Lead Acid Gel-Cell Rechargeable Battery with Slide terminals
  • (1) Amron 282XA-UMTwo Diver Portable Communicator User Manual

Contact Information


iSubC Diving Equipment Ltd
Units 9 Holly Close
Whitehills Business Park
Westby With Plumptons

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