• High Audio Fidelity Ultra-low noise circuit combined with noise suppression circuitry produces crystal clear speech. Automatic gain adjustment will guard audio signal from distortion, enhance speaker protection and audio quality. Increases band width 47%.
• Extended Battery Operation Time Audio amplifier card deploys the state-of-the-art Class-D digital audio power amplifier. Has very low power dissipation, produces less heat, and extends battery life up to 32%.
• Flexible Gain Settings The audio amplifier card has adjustable gain settings to accommodate different communication applications and environments.
• Ultra-Low Electromagnetic Interference (EMI) EMI is achieved through spread-spectrum and de-phase control techniques providing for optimum integration with diving systems.
• Built-in Internal Charger The built-in 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.
FEATURES:
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.
Wire harness in back of unit to mate to the speaker in the air control panel.
SPECIFICATIONS:
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 VDC Min - 16 VDC Max)
The 2825A-07 is not a standalone communicator. It was designed to be installed into the Amron 8211 Series Compact Two-Diver Surface Command Units only. Please visit the AMCOM II 2825A-01 product page for our recommended standalone Two Diver Portable Communicator.
All communicators will inherently transfer topside noise to the divers when the tender speaks directly into the communicator’s panel speaker. To eliminate background noise at the surface, order the 2405-28 Push-to-Talk Microphone. For optimum communications, purchase the 2401-28 Deluxe Headset with Boom Mic, topside. For tender maneuverability, use the 2401-28 Deluxe Headset with Boom Mic along with the 2822-28 Remote Walk-and-Talk (4-wire mode) or the 2821-28 Remote Walk-and-Talk (2-wire mode). For wireless tender communications, special order the 2825A-06 Two Diver Panel-Mount Communicator with built-in Wireless Tender option.
Enhancements
High Audio Fidelity
Ultra-low noise circuit combined with noise suppression circuitry produces crystal clear speech. Automatic gain adjustment will guard audio signal from distortion, enhance speaker protection and audio quality. Increases band width 47%.
Extended Battery Operation Time
Audio amplifier card deploys the state-of-the-art Class-D digital audio power amplifier. Has very low power dissipation, produces less heat, and extends battery life up to 32%.
Flexible Gain Settings
The audio amplifier card has adjustable gain settings to accommodate different communication applications and environments.
Ultra-Low Electromagnetic Interference (EMI)
EMI is achieved through spread-spectrum and de-phase control techniques providing for optimum integration with diving systems.
Built-in Internal Charger
The built-in 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.
Features
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.
Wire harness in back of unit to mate to the speaker in the air control panel.
Specifications
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 VDC Min - 16 VDC Max)
The 2825A-07 is not a standalone communicator. It was designed to be installed into the Amron 8211 Series Compact Two-Diver Surface Command Units only. Please visit the AMCOM II 2825A-01 product page for our recommended standalone Two Diver Portable Communicator.
All communicators will inherently transfer topside noise to the divers when the tender speaks directly into the communicator’s panel speaker.
To eliminate background noise at the surface, order the 2405-28 Push-to-Talk Microphone.
For optimum communications, purchase the 2401-28 Deluxe Headset with Boom Mic, topside.
For tender maneuverability, use the 2401-28 Deluxe Headset with Boom Mic along with the 2822-28 Remote Walk-and-Talk (4-wire mode) or the 2821-28 Remote Walk-and-Talk (2-wire mode).
For wireless tender communications, special order the 2825A-06 Two Diver Panel-Mount Communicator with built-in Wireless Tender option.
The AMCOM™ II 2825A-07 Two-Diver Panel-Mount Communicator is based on the field-proven 2825 portable communicator, featuring 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.
This specially designed and newly updated communicator allows for easy installation into the Amron Two-Diver Panel-Mount Communicator Replacement for the 8211 Series Compact Two-Diver Surface Command Units.
The newest version of the AMCOM™ II has the same versatile user-interface, rugged durability and great sound quality as its predecessor with several new digital enhancements: (1) High-Audio Fidelity; (2) Extended Battery Operation; (3) Flexible Gain Settings and (4) Ultra-Low Electromagnetic Interference (EMI). The Overview tab outlines the many outstanding features that continue to make this model the most popular and powerful communicator on the market today.
What are the environmental parameters that Amron's comms units can be used in?
Temperature: Class C Ambient Temperatures –25°C to +55°C
Humidity: Class A Relative humidity up to 96% at all relevant temperatures, no condensation
Vibration: Class A On bulkheads, beams, deck, bridge
EMC: Class B All locations including bridge and open deck
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