Nmea 0183 (For Depth); Deso Ddv (For Heave, Draft, And Sound Velocity); Table 19: Nmea 0183 Dbs; Table 20: Deso Ddv Heave - Teledyne Echotrac E20 Operator's Manual

SERIAL AND UDP OUTPUT STRING FORMATS
C.5

NMEA 0183 (for depth)

Table 19 applies to the selection of NMEA 0183 DBS with one frequency (high or low) active.
Character # Description
1-7 $SDDBS,
Depth in feet. Single decimal floating point number.
,f,
Depth in meters. Single decimal floating point number.
,M,
Depth in fathoms. Single decimal floating point number.
,F*
8 bit hexadecimal value checksum calculated over the entire string excluding the leading '$'
Carriage return
Line feed
Example:
$SDDBS,dd.d,f,d.d,M,d.d,F*36<CR><LF>
= $SDDBS,67.915,f,20.701,M,11.319,F*32<CR><LF>
= 67.915 feet, 20.701 meters, 11.319 fathoms
C.6

DESO DDV (for heave, draft, and sound velocity)

Table 20, Table 21, and Table 22 apply to the selection of DESO DDV with one frequency (high or
low) active. With every ping, the following two strings will be generated immediately after the DESO25
output string.
This feature is only available upon request for Deso echosounders.
Character # Character
1
2
3-4 DD
5
6-7 DD
8 <sp>
9
10 CR
11 LF
Example:
DHDD.DD<sp>m<CR><LF>
= DH-2.00<sp>m<CR><LF>
= Heave, -2.00 meters
Echotrac E20 Operator's Manual
Version 8

Table 19: NMEA 0183 DBS

Table 20: DESO DDV Heave

Description
D Always D
H Always H
Heave data
. Period
Heave data decimal
Space
m meters
Carriage return
Line feed
Uncontrolled Technology Subject to Restrictions Contained on the Cover Page.
p. 54 of 60 November 25, 2020