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Amcom ™ III 3-Diver Portable Rechargeable Communicator - Internal Charger, MS Connectors, Wireless Tender Option

SKU: 2830A/24/28A-MS Rate this product


Availability: Usually ships 8 weeks after receipt of order

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  • Volume setting for each diver and tender to their individual comfort level
  • Both divers can be set up on 4-Wire Mode or 2-Wire Mode or any combination of the two modes
  • Ability to use both dynamic and pre-amplified diver microphones with a unique circuit that detects microphone type and automatically adjusts volume levels
  • Weatherproof panel microphone for greater voice intelligibility
  • Communicator can be left on charge indefinitely without damage to the batteries or communicator (/23 and /24 versions only)
  • Communicator can be operated directly from the charger where AC power is available (/23 and /24 versions only)
  • Each diver has one MS 5 Pin Connector


  • Power: 110/220VAC, 50/60Hz (automatic), or internal/external batteries 12VDC
  • Frequency response: 300Hz to 12kHz
  • Audio power output: 20 watts per channel
  • Isolation transformer: Split bobbin medical grade
  • Back-up battery: 1 ea. 12VDC, Gel-cell
  • Expected battery life: 20 hours
  • Dimensions: 9.0 in. H x 14.5 in. W x 10.0 in. D (22.9 cm H x 36.8 cm W x 25.4 cm D)
  • Weight (approx): 22 lbs. (9.98kg)

Amcom ™ III 3-Diver Portable Rechargeable Communicator - Internal Charger, MS Connectors, Wireless Tender Option - P/N: 2830A/24/28A-MS Includes:

  • (1) Hand-Held Push-to-Talk Microphone - P/N: 2405-28
  • (1) 12 VDC Slide Terminal Gel-Cell Rechargeable Battery - P/N: 2890-05 - Expected life: 20 hrs
  • (1) Remote Wireless Kit - P/N: 2829-11 - Expected battery life: 4.5 hours in talk mode and 8 hours in receive only mode.
  • (1) User Manual

Tech Note:

All communicators will transfer topside noise to the diver when using the radio speaker only. To eliminate background noise and achieve clear concise communications, use a push-to-talk microphone or a headset or a remote walk & talk with a headset.

2 and 3 Year Extended Warranties are available for this product. Please refer to the Attachments tab for further information on the warranty programs.

Note: Amron reserves the right to change the battery brand at any time without notice.


The Wireless Tender Option is a perfect complement to our 2-Diver and 3-Diver communicators. Amron's Full Duplex (Simulcom®) Wireless Tender is designed for the top-side tender to communicate to divers with hands-free operation and no required buttons to push. This wireless unit allows mobility for the tender while checking equipment and still maintaining constant contact with the divers (4 wire mode only).

Amron's Wireless Tender Option includes: (1) 2829-11 wireless headset and transceiver. Additional 2829-11 Wireless Headset and Transceiver Kits can be purchased for use with the Wireless Tender Option as "listen only" devices, as only one headset on the system can listen and talk priority to the divers. The design allows the capability to add an unlimited number of remote listen only headsets for the topside personnel. The units operate on 2.4 GHz up to a range of 120 yards (110 meters).

The transmitter/receiver unit is housed in a rugged plastic casing that can be clipped to a belt or slipped into a pocket. A single charge of the NiCad battery from the included AC adapter is capable of operating (transmitting and receiving) continually for up to 5 hours. In standby mode, battery will last for up to 8 hours. The standard headset is a tough over-the-ear single ear muff design with adjustable boom microphone. Also included is a smaller, lightweight headset/microphone for added mobility.

Depending on the age of the unit, existing non-wireless communicators in the field can be sent back for retrofitting. Contact your Amron Representative today to learn more!

2 and 3 Year Extended Warranties are available for this product. Please refer to the Attachments Tab for further information on these warranty programs.

Note: Amron reserves the right to change the battery brand at any time without notice.


Additional Information

Search Weight 75
Brand Amcom
Clearance Item No
Communication Mode 2-wire/4wire
Video No

Product FAQ's

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  • What type of cable do I need to connect my Amron communicator to my Outland video system?
    Amron communicators and Outland Technology’s video systems have a RCA Phono Jack. To connect the two systems together, you will need an audio cable with RCA Plugs on each end.
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  • Can you stack the banana plugs from the diver's communicators cable so you can have two divers on each diver channel?

    Although it may be possible, we strongly discourage such operation. The added workload would cause overheating and stress to the amplifier card. Prolonged use in this condition will eventually cause permanent damage and failure to the amplifier card.

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  • Should I use a GFI when operating my radio off AC power?

    When operating your Amron Diver Communicator on AC, it is critical to use a Ground Fault Circuit Interrupter (GFCI) or isolation transformer for tender and diver safety. Surges and spikes are common on AC lines found on ships, generated locally, or at the end of long extension cable runs and can exceed 1kVolt. Such surges and spikes can cause the fuses, F1 and F2, to blow on the battery charger board and in extreme cases damage the charger circuitry. The battery charger is designed so that such a failure will be isolated and will not cause a safety issue to the tender or divers. It is strongly advised that your Amron Diver Communicator be operated on an AC circuit with a high quality surge arrester or an AC isolation transformer.

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  • When my battery does not appear to be holding a charge, how do I know if the problem is a bad battery or if the charger is broken?

    To determine whether the problem is with the battery or charger you will need to verify if the charger is properly charging the battery.


    1. Unplug your communicator and turn on the POWER switch. 
    2. Measure the voltage across the yellow PUSH-TO-TALK (PTT) jack and write down this value for future reference. It should be greater than 9 Volts. 
    3. Plug the communicator into an AC source and verify that the AC POWER LED on the front panel turns on. 
    4. Re-measure the voltage across the PTT jack and note it down for future reference. It should be higher than the previous measurement. 
    5. If the AC POWER LED does not light up when the communicator is plugged in, then check fuses F1 and F2 on the charger Printed Circuit Assembly (PCA). 
    6. Allow the communicator to charge overnight. 
    7. Unplug the communicator and re-measure the voltage across the PTT jack. 
      1. If it is the same or less than the voltage you measured previously, then the charger is broken and the communicator needs to be sent in for repairs
      2. If the voltage higher than previous measurement but less than 13.5 Volts, then the battery is bad and needs to be replaced. 
      3. If it is greater than 13.5 Volts but it still appears that the battery is not holding a charge, contact Amron for additional support.
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  • Can I operate my communicator while I’m charging the internal battery?
    Yes, however, the charger will charge the battery at a slower rate as some of the charger power is being used to operate the communicator. For the communicator only, units without options, about 20% of the charger’s power is being used by the communicator but units with HSU (Helium Speech Unscrambler) most of the battery charger energy is going to the communicator and HSU.
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  • How do I install a new microphone in my Amcom II or III Communicator?
    Please refer to the Panel Microphone Installation instructions located in the attachments tab.
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  • Can my Amcom communicator work on 240V / 60Hz?
    Yes, the unit will operate on 240V 50/60Hz.
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