Lowrance StructureScan HD Transom Installation Manual - Page 7

Transducer angle After mounting the StructureScan transducer, make sure the transducer is adjusted so it will be parallel with the waterline when moving at trolling speed.    Downscan Overlay The StructureScan transducer should be installed within approximately 1 foot of the broadband sounder transducer to get optimum performance from the Downscan Overlay feature. It is recommended you turn off Downscan Overlay when using your trolling motor as the sonar source, unless the StructureScan transducer and broadband sounder transducer both are installed on the trolling motor. Downscan overlay performance could be degraded if the StructureScan transducer is too far away from the broadband sounder transducer installed on the trolling motor. < 0.3m (1ft) StructureScan HD | Installation | 7