Figuring out fish finders

If you see fish on the sonar screen, does that mean you'll catch 'em?

Updated: June 22, 2006, 1:52 PM ET
By Ron Schara

When the world of electronics and computer chips evolved from pinball machines to PacMan, the move left a bunch of us in the dust.

Lordy, now the world has rushed ahead to gizmos with strange inames, like ipods and itunes, so it's doubtful I'll ever catch up.

The same thing could be said about fishing electronics — you know, sonar signals that arrive in color, GPS antennas chatting with satellites 11,000 miles above the walleyes and computer chips smaller than a Ritz cracker that ...

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