SV4000 Features Applications Technical ROV'S Software   10 years old but "still the best sonar in the world!" - ROV Pilot, Technip.- Jan 05 With its composite transducer technology array, digital processing and separate Tx/Rx elements in the head the SV4000 gives excellent resolution and high quality imagery, which is still unsurpassed by all but the new Titan.. As one ROV pilot told us: "With an SV4000 you could see a gnat's arse at 50m!" Rather unconventional way of describing our sonar's high resolution but we know what he means! Titan is the next generation and incorporates all that is good about the SV4000, but the SV4000 still rolls on - it uses conventional components, which some field technicians prefer, it is modular in design, has oil compensation in the head and just keeps on working...