What is NMEAO183

What does this mean and how do you hook it up ? thanks

Just so happens I’m in my boat sitting in a secret spot. Those five wires that come out of your elite seven connect to your marine radio and give it the coordinates and speed and direction in an emergency for the Coast Guard or other boaters to come and help you. It can also be configured so that your buddies will see you on their GPS.

More than likely you’ll need your Marine band owners manual along with the owners manual for your elite seven to wire it correctly.

Might want to take it into a reputable boat dealer to have it wired correctly.

BK posted a link with a diagram showing it on your other post.

Dang sideways cell phone pictures.

Beat me to it

BK, sitting in a secret spot within the boat?

No one caught it?
d
The marine radio has the gps coordinates, speed and direction or travel right on the face….I’m going to have to post sideways photos more often!!

Better explanation: Once connected to your GPS/Sonar, press one button in an emergency and it will continue to send out a signal through your marine radio until you respond, someone comes to your aid or your vessel sinks. You don’t have to be with your boat to continue sending a distress call.

The longer explanation:

A marine safety radio system for all mariners

Marine communications changed for ever on February 1, 1999, with the introduction of the Global Maritime Distress and Safety System or GMDSS.
The GMDSS has automated many marine radio functions and processes, particularly those related to distress and safety.

The GMDSS is an amalgam of a number of individual radio systems. Whilst satellite-based systems do play a part in the GMDSS, ‘normal’ terrestrial radio continues as the primary system for ship-ship and ship-shore communications.

The GMDSS has automated marine radio distress alerting by the use of a technology known as Digital Selective Calling (DSC).

This web site has been established to provide a single point resource on DSC, with a particular focus on VHF DSC and its use by recreational boaters.

We explain how DSC works, what you can use it for, and why you should seriously consider fitting it to your boat and/or limited coast station.
The most suitable GMDSS communications system for recreational users is VHF DSC. Equipment is relatively inexpensive, simple to use and easy to install. It allows automated communications with all types of vessel, large and small.

What are the advantages of VHF DSC ?

Activation of a single button automatically sends a distress call to all DSC equipped ships, boats and shore stations in range. The call automatically includes:
your identity;
your position (if a GPS receiver is connected); and
the nature of your distress (this can also be edited, if needed).

The call will be automatically repeated until stopped by an acknowledgment message.

DSC is particularly useful if you have to abandon ship quickly – just push the red DISTRESS button and go – your plight will be automatically signaled to all until your boat sinks…

What IS NMEA0183?

You asked….

NMEA 0183 is a combined electrical and data specification for communication between marine electronic devices such as echo sounder, sonars, anemometer, gyrocompass, autopilot, GPS receivers and many other types of instruments. It has been defined by, and is controlled by, the U.S.-based National Marine Electronics Association. It replaces the earlier NMEA 0180 and NMEA 0182 standards.[1] In marine applications, it is slowly being phased out in favor of the newer NMEA 2000 standard. However, it continued to be maintained separately: V4.10 was published in early May 2012, and an erratum noted [2] on 12th May 2012.
It is not clear whether there is any active development. The latest NMEA announcement [3] on the subject is older than the V4.10 standard.
The electrical standard that is used is EIA-422, although most hardware with NMEA-0183 outputs are also able to drive a single EIA-232 port. Although the standard calls for isolated inputs and outputs, there are various series of hardware that do not adhere to this requirement.
The NMEA 0183 standard uses a simple ASCII, serial communications protocol that defines how data are transmitted in a “sentence” from one “talker” to multiple “listeners” at a time. Through the use of intermediate expanders, a talker can have a unidirectional conversation with a nearly unlimited number of listeners, and using multiplexers, multiple sensors can talk to a single computer port.
At the application layer, the standard also defines the contents of each sentence (message) type, so that all listeners can parse messages accurately.

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No one caught it?
d
The marine radio has the gps coordinates, speed and direction or travel right on the face….I’m going to have to post sideways photos more often!!

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Thats a good spot for catfish, eh..

Never caught a cat there. Possible I ‘spose.

I have my 798 sending my coordinates to my radio
so that the weather automatically is for my location.

When I was on Kab this spring, they monitor channel 22.
Are there some channels used on Pool 4 ?

Channel 16

The lock monitors channel 14.

To tell a tow to get out of your way, they monitor ch 13. But don’t bet your life on it.

thanks Brian

Brian,
Don’t you have to get a Maritime registration number?
And isn’t this really only good for use, where the coast guard operates?

Yes on the registration number, but it takes maybe 5 minutes to get. Once it’s entered into the radio, it stays there. The number would need to be manually erased from the radio.

That’s what I thought too Denny and it was somewhat true when the DSC radio’s first started coming out.

Anyone with a DSC radio will pick up a distress signal and there’s a lot of radios out there.

One of the few things the Coast Guard class thought (that I remember) is if there’s a marine band radio on board, it must be turned on and monitor Ch 16. The idea behind this is if there’s an emergency everyone will hear it.

What I do, is turn the radio volume down as low as it will go. When a DSC emergency comes across, or a weather alert, the radio automatically kicks the volume up and interrupts my story telling.

Long answer to a short question.