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| Word |
Description |
| nautical mile |
One minute of latitude; approximately 6076 feet - about 1/8 longer than the statute mile of 5280 feet. |
| navigation |
The art and science of conducting a boat safely from one point to another. |
| navigation leg |
The portion of as voyage upon which the vessel currently travels. Each leg consists of two waypoints, an Origin, a Destination, and a line between them upon which the vessel travels. |
| navigation rules |
The regulations governing the movement of vessels in relation to each other, generally called steering and sailing rules. |
| NMEA |
National Marine Electronics Association. |
| NMEA 0183 |
A One-Way Communication Protocol standard developed in the 1970's by the National Marine Electronics Association (NMEA) for interfacing marine electronic devices. |
| NMEA 2000 |
A Two-Way Communication Protocol standard established in the late 1990's and early 2000's by the National Marine Electronics Association (NMEA) for interfacing marine electronic devices. |
| noise |
Additional signals, coming from electronic equipment, that interfere with signals you are trying to measure. |
| noise density |
A measure of noise as a function of frequency (e.g. mG/ Hz1/2) Generally, the larger the bandwidth of your measurement, the more noise you include in your measurement. |
| null field |
In the NMEA 0183 standard, indicates that data is not available for the field. Indicated by two ASCII commas, i.e., ",," (HEX 2C2C), or, for the last data field in a sentence, one comma followed by the checksum delimiter ",*" (HEX 2C2A) [Note: the ASCII Null character (HEX2C2A). [Note: the ASCII Null character (HEX 00) is not to be used for null fields!] |
