Edgetech Model 3100P Sub-bottom Sonar System Manuel télécharger pdf (Page 31)

990-0000058-1000 Rev F Page 31

Table 4-11 Heading-Deviation & Variation

ARGUMENT DESCRIPTION

x.x Depth, meters

x.x Offset from transducer,

- positive means distance from tansducer to water line

- negative means distance from transducer to keel

ZDA - Time & Date

UTC, day, month, year, and local time zone

$--ZDA,hhmmss.ss,dd.mm,yyyy,ll,zz*hh<CR><LF>

Table 4-12 ZDA-Time and Date

ARGUMENT

DESCRIPTION

hhmmss.ss Universal Time Coordinated (UTC). Hours|Minutes|Seconds.decimal

- 2 fixed digits of hours, 2 fixed digits of minutes, 2 fixed digits of

seconds and a variable number of digits for decimal fractions of

seconds. Always pad with leading zeros.

dd.mm Day(01 to 31)|.Month(01 to 12)

yyyy Year

Local zone description, 00 to

13 hour. This field is optional and

ignored.

zz Local zone minutes description, same sign as local hours This field is

optional and ignored.

NOTES:

Zone description is the number of whole hours added to local time to obtain GMT,

Zone description is negative for East longitudes.

The GLL string provides a more accurate time reference since it is related to the

position fix.

Time and date from the computer CPU are also recorded and could be displayed if

GPS time and date are not available.

Fix marks are bars across the time zero line in all channels.

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Edgetech Model 3100P Sub-bottom Sonar System Manuel Page 31