Lowrance Gen3 comes with built in CHIRP sonar sounder ...
HELIX 12 is the only HB unit with built in CHIRP sounder ...
ONIX and ION need the external CHIRP black box ...
Rickie
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Lowrance Gen3 comes with built in CHIRP sonar sounder ...
HELIX 12 is the only HB unit with built in CHIRP sounder ...
ONIX and ION need the external CHIRP black box ...
Rickie
www.podunkideas.com <--Click here
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------------------------>> Pro Staff Sonar Advisor
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