Amron International Amcom ™ II 2-Diver Standard Non-Rechargeable Portable Communicator

Amron International Amcom ™ II 2-Diver Standard Non-Rechargeable Portable Communicator

SKU: 2820A


  • Single volume control for both divers

  • 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

  • The divers’ connections consist of cross-talk and separate speaker and microphone inputs

  • 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)

The Amcom ™ II Series 2820A diver communication radio system is a full featured hard wire, two diver communicator. The 2820A models have a single earphone volume control for diver’s volume (down-link) and a single volume control for the tender (up-link).

All Amcom ™ II series communicators have Push-to-Talk and separate isolated inputs for each diver. The Amcom ™ II Series portable communications system delivers 20 watts ”voice power”; operating from internal batteries or external 12 VDC power source. Models with the /23 or /24 option can be operated from either a 110/220 VAC, external 12 VDC power source, or an internal 12 VDC battery. All Amcom ™ II Series communicators have the capability of 2-wire and/or 4-wire communication modes. 2-Wire and 4-wire modes can be used simultaneously.

The Amcom ™ II Series communicator has the ability to work with both dynamic and pre-amplified microphones in either 2-wire or 4-wire modes. The circuit detects the type of microphone that each diver is using then automatically switches from the pre-amp mode to dynamic mode, adjusting the specific diver’s gain (volume). The tender’s volume is set louder than the diver’s volume. This allows the tender to hear the diver in a noisy environment while maintaining the diver’s volume at a comfortable level.

Non-Rechargeable: Part Number 2820A Includes

  • (4) 6 VDC Spring-Top Dry Cell Non-Rechargeable Batteries: Part Number 2890-03 – Expected life: 40 hrs
  • User Manual


  • Audio Power Output 20 Watts per channel
  • Frequency Response 500 Hz to 3 kHz
  • Isolation Transformer Split Bobbin Medical Grade
  • 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 20.3 lbs (9.2 kg)
  • Power 110/220 VAC 50/60 Hz (automatic sensing), or Internal/External Batteries 12 VDC

Tech Note

All communicators will transfer topside noise to the diver when using the radio speaker only. To eliminate background noise and achieve clear communications, use a Push-to-Talk microphone, headset, or a Remote Walk-and-Talk with a headset.


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