Pathfinder DVL Guide
April
2018
EAR-Controlled Technology Subject to Restrictions Contained on the Cover Page.
Page 149
Expert Water Profiling Command Descriptions
This section lists the expert Water Profiling commands. Commands that start with the # sign are consid-
ered “expert” commands.
>#W?
Available Commands:
#WA 050 -------------------- False Target Amplitude Threshold [0-255]
#WC 064 -------------------- Correlation Threshold [0-255]
#WE 2000 ------------------- Error Velocity Threshold (mm/s)
#WJ 1 ---------------------- BroadBand Rcvr Gain [0=Lo,1=Hi]
#WT 0000 ------------------- Transmit Length (cm)
#WX 0 ---------------------- Set single-beam transmit mode
#W? ------------------------ Display #W-Command Menu
#WA – False Target Threshold Maximum
Purpose
Sets a false target (fish) filter.
Format
#WAnnn
The WA command works with or without the # sign. For example, using WA or #WA are both
valid commands.
Range
nnn = 0 to 255 counts (255 disables this filter)
Default
#WA050
The default setting for this command is recommended for most applications.
Description
The Pathfinder uses the #WA-command to screen water-track data for false targets (usu-
ally fish). #WA sets the maximum difference between echo intensity readings among the
four profiling beams. If the #WA threshold value is exceeded, the Pathfinder rejects ve-
locity data on a cell-by-cell basis for either the affected beam (fish detected in only one
beam) or for the affected cell in all four beams (fish detected in more than one beam).
This usually occurs when fish pass through one or more beams.
A #WA value of 255 turns off this feature.
#WC – Low Correlation Threshold
Purpose
Sets the minimum threshold of water-track data that must meet the correlation criteria
for profile and water mass mode (see
).
Format
#WCnnn
The WC command works with or without the # sign. For example, using WC or #WC are both
valid commands.
Range
nnn = 0 to 255 counts
Default
#WC64
The default setting for this command is recommended for most applications.