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Quoting Frank Reed :
"GPS nav system often (normally?) has no hard-copy output of any sort"

Depends on the receiver/system. If you lose GPS signals but the
equipment is still functioning otherwise, you might be able to consult
the unit's track log for the positioning history. If the unit output
NMEA sentences and these were stored, they could be consulted. And you
could periodically do a screen dump and save as needed. These outputs
could be printed for a hard copy IF a printer was available. Perhaps
on a large ship but I doubt if smaller vessels would have one.

-- Richard Langley

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| Richard B. Langley                            E-mail: lang@unb.ca         |
| Geodetic Research Laboratory                  Web: http://www.unb.ca/GGE/ |
| Dept. of Geodesy and Geomatics Engineering    Phone:    +1 506 453-5142   |
| University of New Brunswick                   Fax:      +1 506 453-4943   |
| Fredericton, N.B., Canada  E3B 5A3                                        |
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