Humminbird 2D Image Interpretation

[Doug Vahrenberg]

Here are some 2D Images from Humminbird. Can you guess what is in the image? DI and SI to Follow Later.

Switchfire Clear Mode of Image:



Switchfire Max Mode of Image:

[Fish TR19]

Bridge

[Flattman]

I'm gonna guess a "Fire Plug." It is pretty hard and looks like it is burried in concrete.

[11pounder]

Picnic table.

[Bartman]

With the hard bottom return, I would guess a roadbed going up and down the hill with a bridge at the bottom of a hill. The bridge is about 15' long.

[Doug Vahrenberg]

You all guess way to fast! It's a Bridge with a Thermocline above it, few trees down by the river and some small fishies.

Down Imaging of the Switchfire Images



Side Imaging of the Down Imaging and Switchfire Images

[sterling6069]

doug i got a ? for you for one how do you tell the thermocline and for 2 i have the 997 si and i have to turn clutter up all the way and senstivity way down to actually see anything clear is this normal transducer was mounted on transom 1/4 above pad

[Flattman]

Doug, is the thermocline in that 2D located between 33 and 40 feet?

Ron

[Doug Vahrenberg]

<table width="90%" cellspacing=0 cellpadding=0 align=center><tr><td>Quote, originally posted by Flattman &raquo;</td></tr><tr><td class="quote">Doug, is the thermocline in that 2D located between 33 and 40 feet?

Ron</td></tr></table>

Yes the light blue sonar returns are the thermocline. I actually turned the Sensitivity down so I could see details in the Thermocline if not it would show dramatically.

With current software just released I leave surface clutter at 5 and adjust sensitivity to provide the details I need or want to see. Normally adjust clear mode a hair more and Max Mode down to be able to see all the details. You can freeze the screen and adjust to the level you prefer to get the data you need.