September
2017
Sentinel V SC and RT Operation Manual
Page 234
EAR-Controlled Technology Subject to Restrictions Contained on the Cover Page.
Standard Water Profiling Commands
WB – Bandwidth
Purpose
Sets the profiling mode 1 bandwidth (sampling rate). Smaller bandwidths allow the ADCP
to profile farther, but the standard deviation is increased by as much as 2.5 times.
Format
WBn
Range
n = 0 (High), 1 (Low)
Default
WB0
Recommended Setting. The default setting for this command is recommended for most applications.
Description See table below.
Table 31:
Bandwidth Control
Bandwidth
Sample rate
Data variance
Profiling range
0 = High (25%)
High
Low
Low
1 = Low (6.25%)
Low
High
High
WC – Correlation Threshold
Purpose
Sets the minimum threshold for correlation magnitude that velocity data must meet to be
considered valid.
Format
WCnnn
Range
nnn = 0 to 255 counts
Default
WC 064
Recommended Setting. The default setting for this command is recommended for most applications.
Description The Sentinel V Real-Time uses WC to screen water-track data for the minimum acceptable
correlation requirements. The nominal (maximum) correlation depends on system fre-
quency and depth cell size (WS). WC sets the threshold of the correlation below, which the
ADCP flags the data as bad and does not average the data into the ensemble.
The default threshold is 64 counts. A solid target would have a correlation of 128 counts.
