12 Crystal-Clear Raymarine Chirp Sonar Snapshots Deciphered

Bait balls, striped bass and mackerel — all in high-definition color.

Capt. Terry Nugent of Riptide Charters out of Cape Cod, Massachusetts, captured a series of remarkable screen shots, using his Raymarine CP570 chirp sonar module with an Airmar R599 transducer, CP100 chirp module and Raymarine's DownVision.

Nugent, a longtime New England charter guide and angler, captioned each image with a description of the bait and predators, based on his experience. One image features large sandeels being eaten by mackerel, with a school of large striped bass waiting on the dropoff. The Chirp unit's high-definition target separation even shows — in one image — a striped bass inside a bait ball.

Raymarine CP570/R599 CHIRP Sounder Screenshots
Large sandeels (upper left) being eaten by mackerel (middle) with a school of large striped bass sitting just off the edge in the deeper water picking off stragglers (far right).Courtesy Capt. Terry Nugent
Raymarine CP570/R599 CHIRP Sounder Screenshots
Several large striped bass feeding on 3 small and 1 large school of mackerel. A small school of sandeels is on the bottom. Notice how the mackerel are not shown as a single large mass, but as a school of small individuals. The separation the sounder has is incredible.Courtesy Capt. Terry Nugent
Raymarine CP570/R599 CHIRP Sounder Screenshots
Several striped bass feeding on a big ball of mackerel. Notice the striper in the middle of the bait ball. The CP570/R599 CHIRP sounder clearly shows the bass as a separate target in the tight mass of bait. There is another smaller bait ball to the right.Courtesy Capt. Terry Nugent
Raymarine CP570/R599 CHIRP Sounder Screenshots
Large sandeels (upper left) being eaten by mackerel (middle) with a school of large striped bass sitting just off the edge in the deeper water picking off stragglers (far right).Courtesy Capt. Terry Nugent
Raymarine CP570/R599 CHIRP Sounder Screenshots
Several striped bass feeding on a big ball of mackerel.Courtesy Capt. Terry Nugent
Raymarine CP570/R599 CHIRP Sounder Screenshots
A small school of striped bass on the upper left with a small bait ball on the bottom right.Courtesy Capt. Terry Nugent
Raymarine CP570/R599 CHIRP Sounder Screenshots
Striped bass chasing a school of large sandeels. This sounder shows the fishes movement like I've never seen before.Courtesy Capt. Terry Nugent
Raymarine CP570/R599 CHIRP Sounder Screenshots
Striped bass chasing sandeels. This sounder really shows the fishes movement with amazing detail.Courtesy Capt. Terry Nugent
Raymarine CP570/R599 CHIRP Sounder Screenshots
Striped bass (far left and far right) chasing a school of mackerel (middle). Notice the movement on the bass far right as he chases and eats a mackerel.Courtesy Capt. Terry Nugent
Raymarine CP570/R599 CHIRP Sounder Screenshots
Several large striped bass feeding on 3 small and 1 large school of mackerel. A small school of sandeels is on the bottom. Notice how the mackerel are not shown as a single large mass, but as a school of small individuals.Courtesy Capt. Terry Nugent
Raymarine CP570/R599 CHIRP Sounder Screenshots
A large cloud of sandeels (just above the bottom) with mackerel above them and striped bass feeding on both baits.Courtesy Capt. Terry Nugent
Raymarine CP570/R599 CHIRP Sounder Screenshots
Stripers on a dropoff feeding on squid. CP100 Imaging for comparison (right side).Courtesy Capt. Terry Nugent