Bb - High Bandwidth Maximum Depth; Bc - Correlation Magnitude Minimum; Be - Error Velocity Maximum - Teledyne WORKHORSE Operation Manual

May 2015
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
nnnn = 0 to 9999 mm/s
Range
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
ed since four good beams are needed for error velocity calculation.
Page 132
EAR-Controlled Technology Subject to Restrictions Contained on the Cover Page.
Transformation) and only three beams are good, then the data is accept-
WorkHorse H-ADCP Operation Manual