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Hh<CR><LF> the check-sum and the end of the message.
5-4-7 $PNTS
This is a private-sentence based on NMEA-0183. The data contains date, time, latitude,
longitude, moving speed, direction, altitude plus a short message, group codes, and icon
numbers. The EJ-41U does not analyze this format but can re-structure it.
The data contains the following information:
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$PNTS Starts the $PNTS sentence
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version
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the registered information. [0]=normal geographical location data. This is the only data EJ-
41U can re-structure. [s]=Initial position for the course setting [E]=ending position for the
course setting [1]=the course data between initial and ending [P]=the check point registration
[A]=check data when the automatic position transmission is set OFF [R]=check data when
the course data or check point data is received.
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Dd/mm/yyyy/hh/mm/ss: Date and time indication.
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Latitude in DMD followed by N or S
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Longitude in DMD followed by E or W
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Direction: Shown with the number 360 degrees divided by 64. 00 stands for true north, 16
for east.
Speed in Km/h
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One of 15 characters [0] to [9], [A] to [E]. NTSMRK command determines this character when
EJ-41U is used.
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A short message up to 20 bites. Use NTSMSG command to determine this message.
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A group code: 3 letters with a combination of [0] to [9], [A] to [Z]. Use NTSGRP command to
determine.
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Status: [1] for usable information, [0] for non-usable information.
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*hh<CR><LF> the check-sum and end of PNTS sentence.
5-4-8 Caution for NMEA-0183 formats
The format of NMEA-0183 data depends on each devices’ own codes. The following formats are
not against NMEA-0183 rules. The software used to process the received beacons must be
programmed to receive and process the data, such as:
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The partition of the data field is a comma[,]. The null-field format is used when particular
data is intentionally left blank. In this case, nothing is written, but used a comma to go to the
next field.
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If all the data afterwards are not necessary, the data may be ended at once followed by
<CR><LF>
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The numeric digits usually vary its length, sometimes without the decimal numbers.
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In order to keep a fixed length of data, 0 is added before a number like 001 to indicate 1.
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The check-sum may be eliminated. Numbers followed by * , or even * itself is sometimes
eliminated.