DSPComm - highly reliable and low cost underwater communication solutions CONNECTING EVERYTHING UNDERWATER
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Overview

AquaComm: Underwater wireless modem

AquaNetwork: Underwater wireless modem with networking capability

AquaCase: Underwater housing

AquaBase: Deck unit

AquaTrans: Acoustic dunking hydrophone transducer

AquaStore: Low-power versatile data logger

Products under development

AquaComm: Underwater wireless modem

AquaComm: Underwater wireless modemAquaComm underwater wireless modem is the ideal choice for underwater communications when utmost reliability and flexible design integration are critical to your application's success.





Features Attributes Benefits
High reliability of communications
  • Purpose-designed algorithms and electronics for highly reliable underwater communications
  • Shown to be the most reliable in numerous independent tests by major organisations
  • Proven over many years of commercial use
  • Works in virtually any real-world sea state where others have failed
  • Dramatically reduce operational risks and maintenance costs
  • Brings certainty and confidence that your application will work
Low power consumption
  • Uses 10-20 times less power than competing products
  • Lower maintenance requirements and total cost of ownership
  • Broadens the types of applications AquaComm can be used for
Ease of integration
  • DSPComm is an OEM specialist
  • Small form factor, lightweight
  • Transparent command modes
  • Easy to understand command structure
  • Standard RS-232 connection for DC-DTE
  • Quickly and successfully integrated with numerous products
  • Quick and low-cost integration
  • Lower total cost of ownership
Small form factor and lightweight
  • Less than half the size of competing modems
  • Broadens the types of applications AquaComm can be used for

AquaComm is available in 100 bit/sec and 480 bit/sec versions and in two forms:

  • OEM: AquaComm modem module for integrating into an OEM's housing
  • Encased: AquaComm modem module encased in AquaCase

Detailed technical specifications:

Parameter Details
Data rates 100 or 480 bits per second depending on model
Bit Error Rate 10-6 bit error rate or better
Acoustic Doppler Tolerance High immunity to noise and to multi-path and Doppler fading.
Acoustic Doppler tolerance of +/- 5ms-1
Bandwidth Broadband operation 16Khz to 30Khz
Range Tested to 3km range. Longer ranges possible
Modulation Direct sequence spread spectrum / OFDM
Error detection CRC16 error detection
Through water communications protocol Confirmed packet delivery with error detection. If the transmitting end does not receive an acknowledgement, it will resend the data two more times. Number of retries is configurable.
Addressing Uniquely addressable. Six digit numeric address set through host command.
Receive sensitivity Ability to set the receive sensitivity
Transmit power Ability to set the transmit power level
Physical size 8cm x 7cm x 1.5cm (excluding transformer )
Electronics Digital signal processor based
Power supply input voltage DC 5V to 9V
Current consumption @ 6V DC 42mA (nominal) in normal wake operation
4.2mA in power save receive
Less than 150uA in sleep model
External connections 10 pin KK header to connect power, host communications, reset line and wake up line
2 pin terminal to connect hydrophone transducer
Host communications RS232 serial communications.
9600 baud (default),1 start bit, 1 stop bit, no parity
4800, 2400 or 1200 baud programmable
Either TTL voltage levels (3.3V) or RS232 voltage levels selectable
Host command Simple ASCII command set to configure and command the modem
Temperature range -5 degC to +50 degC

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