Teledyne ADFM Analog Output Module, Technical Manual, Page: 126 / 156

Appendix C
C-2.8 Vertical Beam Commands
The following commands define the vertical beam criteria used to track the
surface.
VC - Proofing of depth
Purpose: Requires nnn successful surface detections before outputting a
new surface range.
Format: VC nnn
Range: nnn = 0 to 12 (0 = Off, 2-12 Pings)
Default: VC000
Description: If the VC command is set to VC012, then 12 successful sur-
face detections would have to occur before a new surface
range was output.
VD - Data Out
Purpose: Selects the data types for the vertical beam collected by the
ADFM.
Format: VD 00n n00 000
Range: Firmware switches (see description)
Default: VD001 000 000
Description: VD uses firmware switches to tell the ADFM the types of data
to collect. The ADFM always collects header data,
fixed/variable leader data, and checksum data.
Example: VDxx1 xxx xxx = collect Amplitude Switch data
VDxxx 1xx xxx = collect vertical beam Variable Leader data
VM - Surface Track Mode
Purpose: Sets the ADFM Surface Tracking Mode
Format: VM n
Range: n = 1 to 5 (1 = Amp, 2 = NA, 3 = Auto, 4 = Shallow, 5 =
Deep)
Default: VM3
Description: The ADFM has 2 different surface tracking modes. Mode 1 is
user configured and not recommended. Mode 3 is the Auto-
Tracking mode which selects between Shallow (Mode 4) and
Deep (Mode 5) surface tracking modes. Modes 4 and 5 are
for forcing shallow or deep, but it is recommended that the
AutoTracking be allowed to evaluate and select shallow or
page C-46 MGD Technologies, Inc.