Dual-Band CHIRP Transducers
Dual-band CHIRP transducers operate simultaneously in two frequency ranges, typically the Low & High ranges (LH) or the Low & Medium ranges (LM). These transducers give greatly enhanced image resolution at a wide range of depths.
Transducers with a standard beam width have a low-frequency band beam with a cone of up to 15°. Wide-beam models have low-frequency beams of up to 25° and ultra-wide-beam models have beams width of up to 40°.
Wider beams at low frequencies increase the area covered by the transducer and reveal more fish in the water column.
Dual-band transducers can only be used with sounders or fishfinders that are designed to handle them.
B265
Standard Beam
The B265 is a through-hull, 1kW, dual-band CHIRP transducer with a bronze housing and an external fairing. It has 8 internal broadband ceramic elements. The B265 is available in either the Low & Medium bands or in the Low & High bands.
B275
Wide Beam
The B275 is a through-hull, 1kW, dual-band, wide-beam CHIRP transducer with a bronze housing and an external fairing. It has 8 internal broadband ceramic elements. The B275 is available only in the Low & High bands with a wide beam.
B765
Standard Beam
The B765 is a through-hull, 600W, dual-band CHIRP transducer with a bronze block and plastic fairing. It has 2 internal broadband ceramic elements. The B765 is available in either the Low & Medium bands or Low & High bands.
CM265
Standard Beam
The CM265 is a wet-box/tank mount, dual-band CHIRP transducer in a urethane housing. It has 8 internal broadband ceramic elements. The CM265 is available in either the Low & Medium bands or Low & High bands.
CM275
Wide Beam
The CM275 is a wet-box/tank mount, dual-band CHIRP transducer in a urethane housing. It has 8 internal broadband ceramic elements. The CM275 is available only in the Low & High bands with a wide beam.
CM599
Standard or Wide Beam
The CM599 is a pocket/keel mount, dual-band CHIRP transducer in a urethane housing. It has 25 internal broadband ceramic elements. The CM599 is available in either the Low & Medium bands, Low & High bands, or Low & High bands with a wide beam.
M265
Standard Beam
The M265 is an in-hull, 1kW, dual-band CHIRP transducer with a fiberglass tank. It has 8 internal broadband ceramic elements. The M265 is available in either the Low & Medium bands or Low & High bands.
M422
Standard Beam
The P50 is an in-hull, puck-style transducer for bass and walleye boats with a 600W power rating. It chirps in the Low & High bands.
P50
Wide Beam
The P50 is an in-hull, puck-style transducer for bass and walleye boats with a 600W power rating. It chirps in the Low & High bands.
P83
Wide Beam
The P83 is an in-hull, puck-style transducer for bass and walleye boats with a 300W power rating. It chirps in the Medium & High bands and also functions as a conventional non-CHIRP 83/200 kHz transducer.
PM111
Standard or Wide Beam
The PM111 is a pocket/keel mount, dual-band CHIRP transducer in a urethane housing. It has 16 internal broadband ceramic elements. The PM111 is available in either the Low & Medium bands, Low & High bands, or Low & High bands with a wide beam.
PM265
Standard Beam
The PM265 is a pocket/keel mount, dual-band CHIRP transducer in a urethane housing. It has 8 internal broadband ceramic elements. The PM265 is available in either the Low & Medium bands or Low & High bands.
PM275
Wide Beam
The PM275 is a pocket/keel mount, dual-band CHIRP transducer in a urethane housing. It has 8 internal broadband ceramic elements. The PM275 is available only in the Low & High bands with a wide beam.
R109
Standard or Wide Beam
The R109 is a through-hull, external-mount, dual-band CHIRP transducer in a urethane housing. It has 16 internal broadband ceramic elements. The R109 is available in either the Low & Medium bands, Low & High bands, or Low & High bands with a wide beam.
R111
Standard Beam
The R111 is an in-hull, dual-band CHIRP transducer with a fiberglass tank. It has 16 internal broadband ceramic elements. The R111 is available in either the Low & Medium bands or Low & High bands.
R409
Ultra-Wide Beam
The R409 is a through-hull, external-mount, ultra-wide-beam, dual-band CHIRP transducer in a urethane housing. It has 25 internal broadband ceramic elements. The R409 is available in the Low & Medium bands only.
PM411
Ultra-Wide Beam
The PM411 is a through-hull, external-mount, ultra-wide beam, dual-band CHIRP transducer in a urethane housing. It has 25 internal broadband ceramic elements. The PM411 is available in the Low & Medium bands only.
R509
Standard or Wide Beam
The R509 is a through-hull, external-mount, dual-band CHIRP transducer in a urethane housing. It has 25 internal broadband ceramic elements. The R509 is available in either the Low & Medium bands, Low & High bands, or Low & High bands with a wide beam.
R599
Standard Beam
The R599 is an in-hull, dual-band CHIRP transducer with a fiberglass tank. It has 25 internal broadband ceramic elements. The R599 is available in either the Low & Medium bands or Low & High bands.
TM265
Standard Beam
The TM265 is a transom-mount, 1kW, dual-band CHIRP transducer with a stainless steel mounting bracket. It has 8 internal broadband ceramic elements. The TM265 is available in either the Low & Medium bands or Low & High bands.
TM275
Wide Beam
The TM275 is a transom-mount, 1kW, wide-beam, dual-band CHIRP transducer with a stainless steel mounting bracket. It has 8 internal broadband ceramic elements. The TM275 is available only in the Low & High bands with a wide beam.
CHIRP Marine is an independent source of information about CHIRP technology in transducers, sounders and fishfinders.
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