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May
2015
WorkHorse H-ADCP Operation Manual
Page 184
EAR-Controlled Technology Subject to Restrictions Contained on the Cover Page.
Waves Commands
Waves is a feature upgrade for 300 kHz NB H-ADCPs (see
For information on how to use the Waves commands, see the Waves User’s Guide.
Available Waves Commands
>h?
Available Commands:
HA 255 ------------------- Waves False Target Threshold (Fish Rejection)
HB 05 -------------------- Number of Automatically Choosen Bins (20 Max)
HD 111000000 ------------- Waves Selected Data (Vel;Pres;Surf HPR;; ;;)
HF 00000 ----------------- Waves Flow Ctrl (Res;Res;Res;Ser;Rec)
HP 0000 ------------------ Number of Pings per Record
HR 01:00:00.00 ----------- Time between Wave Bursts (hh:mm:ss.ff)
HS 001,010,021,022,023 --- Bins selected for Directional wave data recording
HT 00:00:00.50 ----------- Time between Wave Pings (hh:mm:ss.ff)
HV 001,010,021,022,023 --- Bins selected for Velocity Spectrum data recording
H? ----------------------- Display Waves Menu Help
>
Waves Command Descriptions
HA – Waves False Target Threshold
Purpose
Sets a false target (fish) filter.
Format
HAnnn
Range
nnn = 0 to 255 counts (255 disables this filter)
Default
HA255
Recommended Setting.
The default setting for this command is recommended for most applications.
Description
The H-ADCP uses the HA-command to screen water-track data for false targets (usually
fish). HA sets the maximum difference between echo intensity readings among the four
profiling beams. If the HA threshold value is exceeded, the H-ADCP rejects velocity 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 oc-
curs when fish pass through one or more beams.