science

National Marine Electronics Association

National Marine Electronics Association is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand National Marine Electronics Association rather than just read about it. In short: The National Marine Electronics Association (NMEA) is a US-based marine electronics trade organization setting standards of communication between marine electronics. Standards NMEA 0183 NMEA 2000 NMEA OneNet NMEA OneNet is the latest standard for maritime data networking based on 802.3 Ethernet, and will complement existing onboard NMEA 2000 networks by allowing for high-capacity data transfers.

Key takeaways

National Marine Electronics Association belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect National Marine Electronics Association to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of National Marine Electronics Association from memory before moving on to harder problems.

Reference excerpt

The National Marine Electronics Association (NMEA) is a US-based marine electronics trade organization setting standards of communication between marine electronics.

Standards

NMEA 0183

NMEA 2000

NMEA OneNet NMEA OneNet is the latest standard for maritime data networking based on 802.3 Ethernet, and will complement existing onboard NMEA 2000 networks by allowing for high-capacity data transfers. Current maritime data networks have bandwidth capacities of less than 1 Mbit/s. Building on Ethernet, OneNet allows for capacity in the hundreds or thousands of megabits per second. This extra bandwidth is needed for transferring unprocessed sensor data from sonar/radars, as well as video feeds from for example an engine room. The primary features and goals of OneNet are as follows:

NMEA 2000 data transfer over IPv6 in a standard format High-bandwidth applications such as radar, video and more that are not possible via NMEA 2000 Support Ethernet and TCP/IP at 1 gigabit and faster speeds Power devices via Power over Ethernet Utilize standardized connectors (RJ-45 and X-Coded M12) depending on installation Robust, industry-standard cybersecurity requirements NMEA 2000 gateway compatibility Mandatory device & application certification by the manufacturer, then verified by NMEA The use of the X-Coded M12 connector allows for up to 10 Gigabit Ethernet, but the full capabilities do not have to be utilized, and would also depend on the cabling that is installed.

See also Radio Technical Commission for Maritime Services

References

Further reading "Inside the National Marine Electronics Association". Yachting. Retrieved 2013-12-01. "Lindstrom named chairman of National Marine Electronics Association". Professional Mariner. Retrieved 2013-12-01.

External links Official website

Worked examples

Example 1 — a first encounter with National Marine Electronics Association

Start with the simplest possible case. Write down what National Marine Electronics Association claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to National Marine Electronics Association before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about National Marine Electronics Association ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of National Marine Electronics Association

In research: National Marine Electronics Association appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses National Marine Electronics Association in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: National Marine Electronics Association is common in secondary-school and first-year university syllabi. It links to neighbouring topics Business organizations based in the United States, Maritime organizations, Shipbuilding stubs, so understanding it makes those chapters shorter.
In everyday life: Look for National Marine Electronics Association outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study National Marine Electronics Association in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what National Marine Electronics Association means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain National Marine Electronics Association out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is National Marine Electronics Association in simple terms?

The National Marine Electronics Association (NMEA) is a US-based marine electronics trade organization setting standards of communication between marine electronics. Standards NMEA 0183 NMEA 2000 NMEA OneNet NMEA OneNet is the latest standard for maritime data networking based on 802.3 Ethernet, an…

Why does National Marine Electronics Association matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study National Marine Electronics Association?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on National Marine Electronics Association.