Maretron NMEA 2000 Bedienungsanleitung PDF herunterladen (Seite 6)

Annapolis Sailboat Show October 7, 2005 Maretron

NMEA 0183 is Outdated

•

Communication Speed

-

4800 baud

or bits per second

–

(A Seldom used version high

-

speed 0183 is 38,400 baud)

•

Typical 0183 message is 400 bits in size

–

Result

–

NMEA 0183 is limited to

12 messages per second

•

Compass: (requires

15 messages per second

)

»

Heading

10

messages per second,

»

rate of turn

4

messages per second,

»

vessel attitude

1

per second

•

Now consider Compass, GPS, Wind, Depth, Speed, Temp,

AIS, etc.

•

Message requirement climbs to more than

100/second

•

Very simply NMEA 0183 can’t handle this volume of traffic

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Maretron NMEA 2000 Bedienungsanleitung Seite 6