Thread: 400hz vs. 800hz si

Originally Posted by CrappiePappy

This is how I understand it ...
In DI the single beam is directed downwards (only), and the difference between the two kHz settings is the angle spread (45deg & 75deg). When using SI, the beam is projected from both sides of the transducer (and also down), so the 455kHz spread is nearly 180deg (greater distance coverage), while the 800kHz spread is over 100deg (better defined images within the beam).

Correct ...



Rickie