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What Is CHIRP Sonar?

CHIRP sonar is a powerful bottom-tracking and fish-finding tool. By continuously sweeping through a range of frequencies, CHIRP exceeds many common limitations of single-frequency broadband sonar. Offering substantially less noise and greater target separation giving you the ability to discern individual baitfish within a school, or to see multiple closely-spaced game fish.

How Does CHIRP Sonar Work?

More pulses means more detail. By continuously sweeping through a range of frequencies, CHIRP exceeds many common limitations of single-frequency broadband sonar.

Which Frequency Should I Use?


Low Chirp

Accurately track the bottom in deep water (compatible with 50 kHz single-frequency transducers)


Medium CHIRP

Greater resolution than Low CHIRP, with minimal loss of depth penetration (compatible with 83 kHz single-frequency transducers)



High resolution, for the greatest image quality in shallow water (compatible with 200 kHz single-frequency transducers)

Seeing Is Believing

For sport and game fishing aficionados, add the S5100 Sounder, and upgrade your fish finding ability. This high performance CHIRP sonar module features three fully independent sonar channels, delivering high-resolution images of true simultaneous coverage of up to three dfferent depth ranges without losing bottom depth tracking.


Dual Channel Chirp

Dual-channel CHIRP transducers, exclusively compatible with the Simrad S5100 Broadband Sounder module, are able to sweep two frequency ranges simultaneously. This offers the ability to scan the upper water column in high resolution with High CHIRP, while at the same time employing Low CHIRP for superior bottom tracking for the ultimate in fish finding technology.

Airmar Chirp Transducers

Airmar has the most advanced transducers on the market and is compatible with a range of our Multifunction Displays. From broadband transducers with high sensitivity to Chirp-ready transducers, Airmar will take your fishing to the next level. See all our transducers!