Teledyne Echotrac E20, Operator'S Manual, Page: 53 / 60

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