B&G Zeus2 Glass Helm CPU - Manual (Page 81)

Structure options
You adjust the StructureMap settings from the Structure options menu. The menu is
available when Structure overlay is enabled.
Not all options are available when saved StructureMap files are used as source. Unavailable
options are greyed.
Range Sets the search range
Transparency Sets the opaqueness of the Structure overlay. With minimum
transparency settings the chart details will be almost hidden by the
StructureMap overlay
Palette Selects Structure palette
Contrast Determines the brightness ratio between light and dark areas of the
screen.
Water column
Shows/hides the water column in Live mode.
If turned OFF schools of bait fish might not be seen on the SideScan
image.
If turned ON the accuracy of the SideScan image on the map might be
affected by the water depth.
Frequency Sets the transducer frequency used by the unit. 800 kHz offers the best
resolution, while 455 kHz has greater depth and range coverage
Noise rejection Filters the signal interference and reduces the on-screen clutter
Clear live history Clears existing live mode history trails from the screen and begins
showing only the most current data
Record data Records StructureScan data
Source Selects StructureMap source
StructureMap | Zeus 2 Glass Helm 81