What is CHIRP? A conventional sonar emits a single frequency pulse at a time. A CHIRP (Compressed High Intensity Radiated Pulse) sonar sends out a continuous flow of low to high frequencies, which enhances the clarity of sonar readings as well as the resolution. Why CHIRP? The clarity and extreme accuracy of CHIRP, combined with the Deeper App, gives you the strategic advantage you need to catch more, catch faster, and catch better. Extreme depth precision - With CHIRP, surface clutter and noise are minimal, allowing you to expect precise sonar measurements in very shallow water and locate fish up to 15 cm from the water's surface. Additionally, you can distinguish bottom structures in water up to a depth of 100 m. Three beam frequencies for versatility: Discover fish holding spots faster with wide-angle beams or locate your target species through extra thick ice with a 7° narrow beam. With a target distance of 1 cm, you can easily identify target species, even when they are in a school of baitfish. Track even the smallest bait while vertical jigging.