Echotrac MKIII Operator's Manual 4.06
Page 35 of 48
January 21, 2019
Using dual frequencies
The following description applies to the selection of
HEAVE
with both frequencies (high and low) active.
“HEAVE” Two Frequencies Active
Character #
Character
Description
1
<sp>/F
Space/Fix Mark
2,3
et/ET
Centimeter/Foot Units indicator
4
<sp>, E, O, D
Normally Space, “E” indicates High Frequency error, “O” indicates Lo
Frequency error (missed return)
5
B
Frequency Indicator “B” = Both or dual Frequency Operation
6
<sp>
Always Space
7,8,9,10,11
DDDDD
High Frequency Depth Data
12
<sp>
Always Space
13, 14, 15, 16, 17
DDDDD
Low Frequency Depth Data
18
+ or -
Heave Direction
19, 20,21.22
HHHH
Heave Data (x.xx) Always Centimeter Resolution
23
CR
Carriage Return
The characters of 2 & 3 are in upper case, when the units are in tenths of feet, and in lower case,
when the units are in centimeters.
Example:
FET<sp>B<sp><sp><sp>184<sp><sp><sp>193+1234<CR> ;
Fix Mark, Dual Freq., 18.4FT for High, 19.3 for Low, +12.34m heave
7.1.1.4
DESO25
The following description applies to the selection of
DESO25
with only one frequency (high or low) active.
DESO25 One Frequency Active
Character #
Character
Description
1
D
Always D
2
A,B
“A” for High Frequency, “B” For Low Frequency
3-10
DDDDDDDD
Depth Data
11
<sp>, f
Space or “f” indicating feet units
12
m, t
“m” indicates meters, “t” indicates feet
13
CR
Carriage Return
14
LF
Line Feed
Example:
DB12345.69<SP>m<CR><LF>; Lo, 12345.69 meters
*<CR><LF>
; Terminator symbol
Summary of Contents for Echotrac MKIII
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