From the moment their lure hits the water to the moment it is pulled out to be cast again, they know exactly where their lure is and what it is doing, even though they cannot see it
Your choice should depend on your experience level and the specific fishing conditions
Most anglers will find that each technology has a time and place and will rely on a combination of 2D sonar, down imaging, side imaging, and GPS at different times or even a combination of two or more of these technologies at the same time and thats why SIZE MATTERS
Two hours later, with five bass on the stringer, I returned to the spot where the big bass had broken my line

basemap with over 3,000 enhanced lake maps with depth contour and shoreline detail, plus coastal depth contours/shoreline detail and spot depth soundings to 1,000 ft./305 m Digital Switching None GPS Internal high-sensitivity WAAS + EGNOS + MSAS Internal Storage None Multimedia None Sonar Compatibility Integrated: CHIRP, Broadband & DownScan Waypoints, Routes, Tracks 3000 Waypoints, 100 Routes and 100 Trails with up to 10,000 points per trail Weather None Physical Compass Safe 12" (300mm) Mounting Type Gimbal Bracket or Dash Flush Mount Weight 1.60 lbs (0.70 kg) Radar Output power 500 watts Other Interface Keypad: 8-way directional keypad Zoom +/- Enter Menu Pages Light/Power MOB Languages Standard Language Pack: English, UK English, French, German, Italian, Spanish, Danish, Finnish, Greek, Norwegian, Portuguese, Sweedish, Afrikaans Eastern European Language Pack: English, UK English, French, German, Italian, Spanish, Bulgarian, Estonian, Croatian, Hungarian, Lithuanian, Latvian, Polish, Slovakian, Turkish, Czech, Romanian Russian/Ukranian Language Pack: English, UK English, French, German, Italian, Spanish, Russian, Ukranian Asian Language Pack: English, UK English, Japanese, Korean, Thai, Chinese-Simple, Chinese-Traditional, Vietnamese Middle Eastern Language Pack: English, UK English, French, German, Italian, Spanish, Arabic, Farsi Warranty Period 5 Years Total 1 Year Full Warranty Replace 4 Years InService Upgrade

(b) Leonard Joel will not cancel a Sale due to the failure of a manufacturer to issue a certificate of authenticity.