Another question about fish finders

[wiperhunter2]

Now, that makes sense, thanks RNL. I think I figured out what FSTN means, it must be the size of the screen that you are viewing because in one of the ads for Garmin it is listed as, 4.5" FSTN display.
Chris, I have a duel cone transducer on my finder right now and it works great at Willard but when fishing deep lakes, it just doesn't work the way I want. It looks like I need is a finder with more watts and frequency. What I'll be looking for is a finder that has at least 3200 watts PtP and a frequency of 400 kHz. What I need to check is the different cone angles that are available for the duel freq. I know they come with 20* but I wonder if they have angles smaller than that, say 7* or 9*, anyone know? WH2
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