I Have Both A Garmin And Humminbird Gps/depth Finder On My Boat,?

the fish arches show some in red and the others are in blue, what does thet mean?

This entry was posted on Saturday, February 27th, 2010 at 6:55 pm and is filed under fishfinders. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.