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Old 03-14-2016, 01:42 PM
Join Date: Nov 2015
Location: New York
Posts: 44

John, this is how Garmin described it to me when I asked that question, hopefully I understood it correctly -

They had mentioned to me that the cone angle and high wide chirp produced by the GT52 was optimal for the depth that I fish, whereas the GT51 puts out a wider cone angle and lower frequency (hence why it requires more wattage)

So if I was fishing much deeper water I'd require a lower frequency/wider cone angle to cover more area and more wattage.

It comes down to focusing 250W in a narrower beam, compared to throwing 600W on a much wider beam (meant to cover more area in deeper water)...

Gil, do I have that correct?
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