Teledyne Echotrac E20 - DESO25 Format

SERIAL AND UDP OUTPUT STRING FORMATS
Echotrac E20 Operator's Manual
p. 53 of 60
November 25, 2020
Version 8
Uncontrolled Technology Subject to Restrictions Contained on the Cover Page.
Using dual frequencies
Table 17 applies to the selection of DBT with both frequencies (high and low) active.
Table 17: Echotrac DBT with Both Frequencies Active
Character #
Character
Description
1
<sp>
Always a space
2-3
et, ET
Unit indicator: “et” = centimeters, “ET” = tenths of feet
4
<sp>, E, O, D
Normally a space, “E” = high frequency error, “O” = low frequency error
(missed return), “D” = high and low error (missed returns)
5
B
Frequency indicator: Both high and low
6
<sp>
Always a space
7
D
High frequency depth data (MSD)
8
D
High frequency depth data
9
D
High frequency depth data
10
D
High frequency depth data
11
D
High frequency depth data (LSD)
12
<sp>
Always a space
13
D
Low frequency depth data (MSD)
14
D
Low frequency depth data
15
D
Low frequency depth data
16
D
Low frequency depth data
17
D
Low frequency depth data (LSD)
18
CR
Carriage return
Example: <sp>etDB<sp>DDDDD<sp>DDDDD<CR>
= <sp>etDB<sp>54321<sp>56789<CR>
= High and low error, dual freq., 54321cm high-freq. depth, 56789cm low-freq. depth
C.4 DESO25 (for depth)
Table 18 applies to the selection of DESO25 with one frequency (high or low) active.
Table 18: DESO25 with One Frequency Active
Character #
Character
Description
1
D
Always D
2
A, B
Frequency indicator: “A” = high, “B” = low
3-10
DDDDDDDD
Depth data
11
<sp>, f
Space, “f” = feet
12
m, t
Unit indicator: “m” = meters, “t” = feet
13
CR
Carriage return
14
LF
Line feed
Example: DBDDDDDDDD<sp>m<CR><LF>
= DB20.00665<sp>m<CR><LF> or DB684.9470ft<CR><LF>
= Low freq., 20.00665 meters or DB684.9470 feet