Smiler,
Here are a few tips that you might use for your DFF3D:
General Information
Beam angle and beam width only affects the triple beam view; best to start narrow at
20/20/20 or
30/30/30; when use in the water column, then widen to
40/40/40 when looking for hard vs. soft bottom (more evident in side beams); look for a tail echo in the side beams for hard vs. soft bottom
The transducer contains 8 little transceivers (elements) port to starboard (called beam forming); this is done by phasing the TX and RX
Cross Section and 3D History
When using this view the beams are fixed at 120 degrees port/starboard and 8 Degrees fore/aft. If the History is not available, (swipe right) is a result of the memory being full.
Try running the Gain higher in order to see more targets; as a starting point try
Gain = 80 for Triple Beam and Gain = 70 for Cross Section; if you are seeing too much
speckle you can just reduce the Gain.
You can also adjust the TVG Curves and the Clutter but you need to go to the menu to adjust; or try setting TX Pulse to Short-1 for better near-bottom fish separation; this is
especially true if the depth is less than 400 feet.
3D Sounder
Seabed Echo Calibration (higher is better); lower will take near bottom fish targets and blend with the bottom; higher calibration will provide you with more target separation.
Look at color scale at left of screen; red to white means shallower than present setting
Tap the "A" to switch to Manual; then tap on the low number or high number and you can set to desired depth It's worthwhile to take a setting from one limit to the other and see how it reacts.
The number of fish targets that can displayed, however the system will keep adding targets but then drop off the older ones.
Cross Section
For better fish separation try adjusting the
Echo Smoothing (Distance) to either "Low" or "Off".
- Deep Blue