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Old 10-15-2011, 10:45 AM
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Join Date: Mar 2009
Location: Homosassa, FL
Posts: 1,433

The 50 kHz frequency provides a much wider cone angle than the 200 kHz.

You are covering a lot more bottom, which is why you are seeing more fish.

The ability to discriminate fish from bottom structure is greater at 200 kHz as long as you have enough power output and transducer sensitivity. The M260 certainly has more than enough of both for 150 ft of water.You should see higher resolution than at 50 kHz, just fewer fish because of the narrower cone angle.
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