Or actually how I think it works. So Chirp sends a pulse or multiple at multiple frequencies and different angles and then reads and processes it. A non-Chirp, regular sonar has fixed frequencies. Simrad for example supports 455Khz and 800Khz in Chirp mode and the standard 50kHz/200kHz i normal

I had passion for boats as far back as I can remember, perhaps the same time I got interested in recreational fishing. Fast forward a few decades and I'm in a position to purchase a boat and last summer (2019) I had the opportunity to get some hands on experience