Hi, guys;

Instead of using the display unit from the Navman depth 2100, i try to
design my own display unit for the transducer of depth 2100.
Anyone have any idea how to interface with this depth transducer by
using the PIC microcontroller? I found that the cable Navman used for
this device is RCA Jack cable. I have no idea about this cable. How can
i interface with this cable to receive the signal from the transducer?
Besides, did anyone know the specification of this transducer?
Thank you so much, guys!!!