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May
2015
WorkHorse H-ADCP Operation Manual
Page 132
EAR-Controlled Technology Subject to Restrictions Contained on the Cover Page.
BB – High Bandwidth Maximum Depth
Purpose
This command lets the user define the depth at which the H-ADCP switches between 25%
and 50% bandwidth.
Format
BBnnnn
Range
nnnn = 0 to 9999 dm
Default
B320 (300 kHz), BB160 (600 kHz)
Recommended Setting.
The default setting for this command is recommended for most applications.
Description
This command lets the user define the depth at which the H-ADCP switches between 25%
and 50% bandwidth. A setting of zero disables 50% bandwidth. A setting of 9999 disables
25% bandwidth.
BC - Correlation Magnitude Minimum
Purpose
Sets minimum correlation magnitude for valid velocity data.
Format
BCnnn
Range
nnn = 0 to 255 counts
Default
BC220
Recommended Setting.
The default setting for this command is recommended for most applications.
Description
Sets a minimum threshold for good bottom-track data. The H-ADCP flags as bad any bot-
tom-track data with a correlation magnitude less than this value.
A count value of 255 is a perfect correlation (i.e. solid target).
BE - Error Velocity Maximum
Purpose
Sets maximum error velocity for good bottom-track data.
Format
BEnnnn
Range
nnnn = 0 to 9999 mm/s
Default
BE1000
Recommended Setting.
The default setting for this command is recommended for most applications.
The default setting is set purposely high and as a result effectively disabled. We recommend
extreme caution and testing before changing this setting.
Data rejected by this command is lost
and cannot be regained.
Description
The H-ADCP uses this parameter to determine good bottom-track velocity data. If the
error velocity is greater than this value, the H-ADCP marks as bad all four beam velocities
(or all four coordinate velocities, if transformed). If three beam solutions are allowed (see
EX – Coordinate Transformation
) and only three beams are good, then the data is accept-
ed since four good beams are needed for error velocity calculation.