Please note that the FCV288 is currently not being sold within any of the North American Market. However, this unit is being sold through Denmark, Spain, UK, Germany and Greece.
Looking over the specifications for the FCV288, and the listed specifications for the AirmarR99, which is a 2kW 50/200kHz Transducer. You should able to get depths of 1200' on the 200kHz side, and anywhere between 3500' to 4000' using the 50kHz side.