Amron 2840A-11 Four-Diver Portable Communicator with Outdoor AC Power Module and Intl. Locking Power Cord

• High Audio Fidelity

Ultra-low noise circuit combined with noise suppression circuitry produces crystal clear speech.

• Automatic Gain Adjustment

Guards against audio signal distortion to enhance audio quality - increases bandwidth 47%.

• Extended Battery Operation Time

The state-of-the-art Class-D digital audio power amplifier provides very low power dissipation, produces less heat, and extends battery life up to 32%.

• Flexible Gain Settings

Adjustable gain settings on the amplifier card support different communication applications and environments.

• Ultra-Low Electromagnetic Interference (EMI)

Ultra-low EMI emissions achieved through spread-spectrum and de-phase control techniques provide for interference-free integration with other diving systems.

• Outdoor Rated AC Power Module

Weather resistant, IP65 rated AC power entry module accommodates country specific AC power cords.

• Country Specific V-Lock AC Power Cord

At time of order, simply choose the IP54 rated Locking AC power cord you need.

• Separate channels and volume controls for each diver and the tender allow individual earphone and microphone adjustments, equipment variations and comfort levels.
• 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 push-to-talk microphone for better tender voice intelligibility. 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.
• Ultra-low EMI emissions provide for interference-free integration with other diving systems.
• Weather resistant IP65 rated AC power module accommodates country-specific, IP54 rated V-Lock AC power cords, selected by the customer at time of order. Additional power cords can be ordered separately.

• Input Impedance (each input): 250 Ω
• 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 Ω
• 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 Ω load, 12 VDC): 10 watts audio
• Battery Life: 37 hours
• Dimensions: 10.0 in. H x 9.0 in. W x 14.5 in. L (25.4 cm x 22.9 cm x 36.8 cm)
• Weight: 17.35 lbs. (7.87 kg)

The AMCOM™ IV 2840A-11 Four-Diver Portable Communicator 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 V-Lock Country-Specific Power Cord (select Power Cord for your country in drop down)

• Amron 2401-28 Deluxe Headset with Boom Mic (dual ear muff)
• Amron 2401SM-28 Deluxe Headset Single Muff with Dual Banana Plugs (single ear muff)
• Amron 2460-28 Standard Operator Headset with Boom Mic and Dual Banana Plugs (dual ear muff)
• Amron 2822-28 Remote Walk-and-Talk (4-wire mode)
• Amron 2821-28 Remote Walk-and-Talk (2-wire mode)
• Amron 2405NC-28 Noise Cancelling Hand-Held Push-to-Talk Microphone

POWER CORD 6.5 FT. OPTIONS

• All communicators will inherently transfer topside noise to the divers when the tender speaks directly into the communicator Panel Mic. To reduce topside background noise, use the optional 2405NC-28 Noise Cancelling Hand Held Push-to-Talk Microphone.
• For high performance comms and exceptional audio clarity, use Amron’s pre-amplified microphones that are offered in configurations supporting Kirby Morgan helmets and bandmasks (190-1000-01 Pre-Amp Mic for KM) or Interspiro AGA masks (190-1000-02 MK 20 Pre-Amp Mic for AGA). For Interspiro AGA masks, Amron also offers complete comm sets such as the BP-44MM-03 and 1406A-03, both of which include Amron’s fully submersible, waterproof bone conducting earphone and the 190-1000-02 MK 20 pre-amplified microphone connected to an RMG-4-MP cable.
• As an option, for tethered tender mobility, the 2401-28 Deluxe Headset with Boom Mic can be purchased along with the 2822-28 Remote Walk-and-Talk (4-wire mode) or the 2821-28 Remote Walk-and-Talk (2-wire mode).
• WARNING: To avoid electrical shock, use Only V-Lock type IP54 rated power cords supplied by Amron for outdoor applications.