The WHOI Micro-Modem is a small-footprint, low-power acoustic modem based on the Texas Instruments TMS320C5416 DSP.

Use the links to the left to find hardware and software documentation, firmware updates, operating scenarios, ordering information and installation tips .

 

 

Equipment Resources

 

The Micro-Modem has been in development for several years, now. As a result, many new equipment designs have been created: transducers, shallow water enclosures, deep water enclosures, power amplifiers, matched to most commercially available transducers, and accessory electronics.

This equipment is documented, and much of that documentation is presented here. If you cannot find the information you need using the links to the left, please contact us, and we will be happy to assist you.

 

Specifications

 

The table below shows typical specifications for a Micro-Modem system.

Micromodem Specifications DSP Texas Instruments TMS320C5416 100MHz low-power fixed point processor Transmit Power < 50 Watts for LLF and RFF Power Amplifier based systems < 100 Watts for MF Power Amplifier based systems Both power numbers above depend on the transducer that is used for the installation. Idle Power ~120 milliWatts for single channel systems Receive Power ~120 milliWatts While detecting or decoding an FSK packet. ~2 Watts While detecting and decoding a PSK packet (requires additional hardware) Data Rate 80-5400 bps Many FSK and PSK packet types supported. Data rates higher than 80bps FSK require additional co-processor card for data to be decoded..