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cherod

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anyone set up a Cobra GPS on a Raymarine E140w ,,, cant get mine to register / recorgnise ( whatever the word / term is ) . any ideas , apart from the red and black there are only two wires go to the nmea , a green and a yellow , connect to the orange / brown and orange / yellow ,,, have checked they seem to be correct , scroll /select "GPS status " but cant get any further , i believe it has to be " requested " ( raymarine tech term ) , but how ??????????? :eek::eek::eek:
 
I started trying to help, but got bored looking through Cobra's catalog to guess which radio you might mean.

Unless you really did mean a GPS. Who knows?

Ask better questions.

Pete
 
prv said:
I started trying to help, but got bored looking through Cobra's catalog to guess which radio you might mean.

Unless you really did mean a GPS. Who knows?

Ask better questions.

Pete
Click to expand...
" really " , radio ? who mentioned radio ,,, please read carefully ( then comment if appropriate )
 
cherod said:
supposed to be fully compatable .
Click to expand...

I've read the manual on the cobra CM 300-005 GPS aerial which I think is what you have.

It is NMEA0183 compatible but it doesn't mention the baud rate anywhere in the specs which is a real basic

If it's just using it as a feed for your E120W then you will only need white and Green and then connect the red and black from the antenna to power
 
Hoist said:
I've read the manual on the cobra CM 300-005 GPS aerial which I think is what you have.

It is NMEA0183 compatible but it doesn't mention the baud rate anywhere in the specs which is a real basic

If it's just using it as a feed for your E120W then you will only need white and Green and then connect the red and black from the antenna to power
Click to expand...
thank you , but it is not an E120, it is ( as OP ) an E140w ,, the wires are , apart from the red n black , green and yellow with the apropriate diag showing the connections as in OP. , i believe it to be an on screen " request " issue , ( again as in OP ) according to the raymarine tech who sells them. t y R
 
cherod said:
thank you , but it is not an E120, it is ( as OP ) an E140w ,, the wires are , apart from the red n black , green and yellow with the apropriate diag showing the connections as in OP. , i believe it to be an on screen " request " issue , ( again as in OP ) according to the raymarine tech who sells them. t y R
Click to expand...

No such thing.

Connect the red and black to power, connect the Cobra NMEA OUT to the Raymarine NMEA IN (+ to + and - to -), set the baud rate on the plotter to 4800.

Might help to post links to the Cobra and Raymarine manuals so people can verify your quoted colours are correct.

Edit, Just checked in my Raymarine installation manual and you are using the wrong wires, you are using the NMEA OUT wires. You should be using:

Orange/White +
Orange/Green -

You still need to check the baud rate.

You could also change the thread title to "Bloody amatuers" :)
 
Last edited:
PaulRainbow said:
No such thing.

Connect the red and black to power, connect the Cobra NMEA OUT to the Raymarine NMEA IN (+ to + and - to -), set the baud rate on the plotter to 4800.

Might help to post links to the Cobra and Raymarine manuals so people can verify your quoted colours are correct.

Edit, Just checked in my Raymarine installation manual and you are using the wrong wires, you are using the NMEA OUT wires. You should be using:

Orange/White +
Orange/Green -

You still need to check the baud rate.

You could also change the thread title to "Bloody amatuers" :)
Click to expand...

Paul is correct, I missed that on the original post but you are using the out wires rather than the in

Still assuming its an antenna you are fitting. Can you post some pictures of the error message.

Why not go back to the raymarine tech and ask him what the baud rate is of the cobra?
 
As Paul already mentioned, the GPS Antenna will need power or it will send nothing. So connect the red/black to a correctly fused power supply.

The NMEA0183 Output of the GPS Antenna needs to be connected to the NMEA0183 Input of the Raymarine Chartplotter - as the Antenna is sending the GPS data and the plotter is receiving it.

NMEA0183 is a very simple bus with send and receive lines (The signal line is usually marked as +ve) and a common ground (-ve), there is no concept of "request". Just make sure the Raymarine Baud setting for the NMEA0183 port is set to 4800.

It might be set to 38000 which is for AIS info, and this will not work with a GPS Antenna sending at the slower standard 4800 Baud rate.

So ....

MENU -> System Setup -> System Integration -> NMEA Port Setting ... and set the port you are using to 4800

Finally make sure you have the correct GPS source selected.

MENU -> System Setup -> System Integration -> Preferred GPS Source .... and set it to the NMEA0183 port you are using

PS: Just looked at the Cobra, the Red is +12v, Black is ground. The Yellow is the Tx (Signal line - where the data is sent (+ve)), Green is signal ground (-ve).

PPS: It would appear the E140W has 3 NMEA 0183 ports ..... I would use the NMEA DEVICE 4800 (Transmit to display only) as the Cobra cannot receive any data, and I would connect as follows ...

Cobra Yellow -> Raymarine Blue/White, Cobra Green -> Raymarine Blue/Green .... and the remaining Cobra Red/Black to power.
 
Last edited:
Baggywrinkle said:
As Paul already mentioned, the GPS Antenna will need power or it will send nothing. So connect the red/black to a correctly fused power supply.

The NMEA0183 Output of the GPS Antenna needs to be connected to the NMEA0183 Input of the Raymarine Chartplotter - as the Antenna is sending the GPS data and the plotter is receiving it.

That means Tx from Antenna to Rx on Raymarine. The other connection needed is to connect their common signal grounds together.

NMEA0183 is a very simple bus with send and receive lines and a common ground, there is no concept of "request". Just make sure the Raymarine Baud setting for the NMEA0183 port is set to 4800.

It might be set to 38000 which is for AIS info, and this will not work with a GPS Antenna sending at the slower standard 4800 Baud rate.

MENU -> System Setup -> System Integration -> NMEA Port Setting ... and set it to 4800

Finally make sure you have the correct GPS source selected.

MENU -> System Setup -> System Integration -> Preferred GPS Source .... and set it to NMEA0183
Click to expand...
Going to try that now , thank yiu very much for simple instructions ?
 
Hoist said:
I've read the manual on the cobra CM 300-005 GPS aerial which I think is what you have.

It is NMEA0183 compatible but it doesn't mention the baud rate anywhere in the specs which is a real basic

If it's just using it as a feed for your E120W then you will only need white and Green and then connect the red and black from the antenna to power
Click to expand...
Almost , but it is NOT a 120 it is a 140w ( i dont know if that is significant ) the wiring from the unit ( yes it is the 300-005 ) is quite clearly and deff one yellow and one green , diag quite clearly ( as marked by the tech ) shows joined to as yellow to orange and yellow and green to orange and brown both pos out . The baud rate is stated as 4800 / 9600 . Ty
 
PaulRainbow said:
No such thing.

Connect the red and black to power, connect the Cobra NMEA OUT to the Raymarine NMEA IN (+ to + and - to -), set the baud rate on the plotter to 4800.

Might help to post links to the Cobra and Raymarine manuals so people can verify your quoted colours are correct.

Edit, Just checked in my Raymarine installation manual and you are using the wrong wires, you are using the NMEA OUT wires. You should be using:

Orange/White +
Orange/Green -

You still need to check the baud rate.

You could also change the thread title to "Bloody amatuers" :)
Click to expand...
There is an orange and white , orange and green option but the tech ( raymarine service point ) said that is not the one , other info check prev post , ty ( an amateur )
 
Hoist said:
Paul is correct, I missed that on the original post but you are using the out wires rather than the in

Still assuming its an antenna you are fitting. Can you post some pictures of the error message.

Why not go back to the raymarine tech and ask him what the baud rate is of the cobra?
Click to expand...
The tech is 40 miles away ☹️
 
Baggywrinkle said:
As Paul already mentioned, the GPS Antenna will need power or it will send nothing. So connect the red/black to a correctly fused power supply.

The NMEA0183 Output of the GPS Antenna needs to be connected to the NMEA0183 Input of the Raymarine Chartplotter - as the Antenna is sending the GPS data and the plotter is receiving it.

NMEA0183 is a very simple bus with send and receive lines (The signal line is usually marked as +ve) and a common ground (-ve), there is no concept of "request". Just make sure the Raymarine Baud setting for the NMEA0183 port is set to 4800.

It might be set to 38000 which is for AIS info, and this will not work with a GPS Antenna sending at the slower standard 4800 Baud rate.

So ....

MENU -> System Setup -> System Integration -> NMEA Port Setting ... and set the port you are using to 4800

Finally make sure you have the correct GPS source selected.

MENU -> System Setup -> System Integration -> Preferred GPS Source .... and set it to the NMEA0183 port you are using

PS: Just looked at the Cobra, the Red is +12v, the Yellow is the Tx (Signal line - where the data is sent (+ve)), There are 2 Black wires - they are most probably connected to each other so one is power ground, the other is signal ground (-ve).

PPS: It would appear the E140W has 3 NMEA 0183 ports ..... I would use the NMEA DEVICE 4800 (Transmit to display only) as the Cobra cannot receive any data, and I would connect as follows ...

Cobra Yellow -> Raymarine Blue/White, Cobra Black -> Raymarine Blue/Green .... and the remaining Cobra Red/Black to power.
Click to expand...
So far do good ,
 
( not that i doubt any of you but )i still have the wires set ad the tech said , if it does not work i will try changing the wires around , t y very much for help
 
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