The Coastal Acoustic Transponder has been designed for low cost applications where size and weight are important operational factors.

The transponder enables critical targets such as underwater structures, diving bells and instrumentation packages to be marked unambiguously and later relocated using Homer-Pro and ROV-Homer range and direction systems.

The transponder operates with tracking and relocation systems such as Scout USBL and Homer-Pro.

The small size and lightweight design of the transponder enables normal or Emergency relocation of critical points of interest, accurate underwater distance measurement and small target/diver tracking.

The unit operates in the HF frequency band from 35-55 kHz. External programming of interrogation addresses and reply frequencies are incorporated.