CHIRP is CHIRP......unless as some claim Garmin is not using true CHIRP technology. But unless one has some really good test equipment no one can say if that is so. You will see a much more detailed sonar return with CHIRP. It does it by transmitting multiple frequencies from the low to the high range.....where as non CHIRP sonar is just transmitting one frequency....or maybe two. CHIRP broadcast a range of frequencies from high to low or low to high.....to paint a much more detailed image. This has been used in radars for some time. Gave us a much better info of the target and started being used in phased array radars.....my experience with it was in the PATRIOT System....except we called it pulse compression.....but it is same thing. Bottom line you will get a great looking image. You should be able to see individual bait instead of say a bait ball.
Regards
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