TRACKPOINT 3
3-71
BRIEF ERROR CODE LISTING
CODE
TARGET ERROR DESCRIPTION
depth to calculate horizontal range.
61
Horizontal range calculated to be greater than slant range.
62
64
Low Quality Factor
NOTE:
Error codes less than 20 result in no new position updates, while error codes of 21 or
greater are warnings. Error conditions 1 - 9 signify that the output data is not valid.
These error codes appear on the RS-232 port if the selected Format is either 1EC or
2EC. If any of these errors are detected, the error data is sent out the RS-232 under
the assumption that the interfacing communications system has been programmed
to ignore this data and extract only the possible good data, such as compass heading
or slant range. Only Formats 1 and 2 output data when it is valid (no errors 1 - 9).
Formats 1 and 2 show warnings only.
EXPLANATION OF ERROR CODES
CODE
DESCRIPTION
0
No error. The error code zero (0) does not appear on the screen or sent out the RS-232 inter-
face, but is a null character, indicating no error.
1
Unusable signal received. Signal received, but TrackPoint unable to calculate a position. This
could have been due to acoustic noise contaminating the incoming signal or to other causes.
The red LED and the audio may show valid detection of a signal. No position is plotted.
2
Not Used.
3
Range cannot be determined. This occurs in transpond or respond mode if the calculated
range is zero. This can happen if a pinger is designated as a responder or transponder and
the transmitter is not turned on. No position is plotted.
4
Low Quality Factor. The signal of the present reply had a quality factor that was lower than
the average of the previous five replies. No position is plotted.
5
Target velocity excessive. Target velocity, based on the change in horizontal position since the
last up-date exceeds 10 knots. This filter takes advantage of the fact that tracked targets
cannot move very fast. This error can occur at filter levels 5 to 10. No position is plotted.
NOTE:
A rapidly turning ship can make the target appear to move fast and can cause this error. To
alleviate this, integrate a compass into TrackPoint.
6
No recent replies. This message appears if, in any mode, no detected signal has occurred for
16 seconds.
Summary of Contents for TRACKPOINT 3 4211A
Page 3: ......
Page 5: ......
Page 13: ...PRECAUTIONS viii ...
Page 14: ...SECTION ONE GENERAL INFORMATION ...
Page 15: ......
Page 18: ...TRACKPOINT 3 GENERAL INFORMATION 1 3 TRACKPOINT 3 CONSOLE FRONT VIEW FIGURE 1 1 ...
Page 20: ...TRACKPOINT 3 GENERAL INFORMATION 1 5 TRACKPOINT 3 SYSTEM COMPONENTS FIGURE 1 3 ...
Page 21: ...TRACKPOINT 3 GENERAL INFORMATION 1 6 FIGURE 1 4 ...
Page 27: ...TRACKPOINT 3 GENERAL INFORMATION 1 12 ...
Page 28: ...SECTION TWO INSTALLATION ...
Page 29: ......
Page 34: ...TRACKPOINT 3 INSTALLATION 2 5 FIGURE 2 2 ...
Page 35: ...TRACKPOINT 3 INSTALLATION 2 6 FIGURE 2 3 ...
Page 38: ...TRACKPOINT 3 INSTALLATION 2 9 MODEL 4740A INSTALLATION FIGURE 2 5 ...
Page 39: ...TRACKPOINT 3 INSTALLATION 2 10 FIGURE 2 6 C A U T I O N ...
Page 52: ...TRACKPOINT 3 INSTALLATION 2 23 FIGURE 2 15 ...
Page 53: ...TRACKPOINT 3 INSTALLATION 2 24 FIGURE 2 16 ...
Page 56: ...TRACKPOINT 3 INSTALLATION 2 27 FIGURE 2 17 ...
Page 62: ...SECTION THREE OPERATION ...
Page 63: ......
Page 132: ...TRACKPOINT 3 OPERATION 3 69 ...
Page 177: ...SECTION FOUR PRINCIPLES OF OPERATION ...
Page 178: ......
Page 183: ...TRACKPOINT 3 PRINCIPLES OF OPERATION 4 5 ...
Page 185: ...TRACKPOINT 3 PRINCIPLES OF OPERATION 4 7 TRACKPOINT BLOCK DIAGRAM FIGURE 4 3A ...
Page 186: ...TRACKPOINT 3 PRINCIPLES OF OPERATION 4 8 TRACKPOINT BLOCK DIAGRAM FIGURE 4 3B ...
Page 189: ...SECTION FIVE MAINTENANCE ...
Page 190: ......
Page 193: ...TRACKPOINT 3 MAINTENANCE 5 1 DSP CARD PROGRAMMING MODE JUMPER FIGURE 5 1 ...
Page 201: ...APPENDIX A CARE OF CABLES ...
Page 202: ......
Page 204: ...TRACKPOINT 3 APPENDIX A A 2 ...
Page 205: ...APPENDIX B STATIC DISCHARGE ...
Page 206: ......
Page 208: ...TRACKPOINT 3 APPENDIX B B 2 ...
Page 209: ...APPENDIX C WARRANTY ...
Page 210: ......
Page 212: ...TRACKPOINT 3 APPENDIX C C 2 ...
Page 213: ...APPENDIX D DRAWINGS ...
Page 214: ......
Page 216: ...TRACKPOINT 3 APPENDIX D D 2 ...
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