Here's a couple neat images I captured showing the Humminbird exceeding the specifications of 150' Max Depth...2D Sonar was in 200kHz only to show the most detail versus coverage area so that is why the bridge piling not showing.
Table Rock Bridge...Proves you get full coverage under the boat...only way you get the bridge on both sides is if the beams overlap in this case...So DI you get under boat coverage
Cool Image of the New 13 Highway Brdige Piling
Table Rock Bridge...Proves you get full coverage under the boat...only way you get the bridge on both sides is if the beams overlap in this case...So DI you get under boat coverage
Cool Image of the New 13 Highway Brdige Piling