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Testing of GPS antenna

 
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Peer
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Joined: Aug 22, 2010
Posts: 5

PostPosted: Sun Jul 15, 2012 1:22 pm    Post subject: Testing of GPS antenna Reply with quote

Good day,

after having been out of service for more than 1 year, I am back at the sailing front.

Yesterday, I switched on my navcenter 600 again, and saw that the connection with the GPS antenna was lost. Did the connection check on the navcentre, but no response.

Question:
Is there a method to check whether the GPS antenna (112) is actually transmitting data?

Looking forward to hear any tips!

Peer
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FWallenwein
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Joined: Mar 26, 2006
Posts: 417
Location: Mannheim / Germany

PostPosted: Sun Jul 15, 2012 5:59 pm    Post subject: Reply with quote

Could you give us a few more details on your hardware configuration.
A Raystar 112 GPS can be used as NMEA or SeaTalk device.

You you have connected it as NMEA directly to the navcenter 600 ?
Or is there anything like a SeaTalk Nmea Bridge between the GPS and the navcanter ? If yes - does the bridge have a display ?

If you use it as NMEA GPS, you could connect the GPS to a different device and see if it does receive anything. Don't know what you have available. Maybe a GMDSS VHF with NMEA-IN Port ?
Or, you could connect it to a PC using it's RS232 Port or a USB<->RS232 converter. When you start a terminal programm on this PC, you should see GPS data.

Frank
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Peer
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Joined: Aug 22, 2010
Posts: 5

PostPosted: Sun Jul 15, 2012 8:45 pm    Post subject: Reply with quote

Hi Frank,

thank you for your swift reply.

The GPS antenna is a NMEA and connected to the GPS port on the NAV600.

Seatalk (wind, clause haul, speed, depth, compass, navdata, autopilot) is connected and I have your bridge connected to the NMEA so that I had connection to my laptop with all data.

By the way, I am considering to buy your multiplexer as well, as I now also have a AIS receiver so two RS232 for connection to the laptop.

Evrything had been working till september 2010, when I had last used this system. While starting up yesterday, I noted the date from 2010 on the intialisation screen, and I could not change it. I only got the error message that the GPS connection was not good. Checked that, but visually ok. Just like before.
I first wanted to check the functionality of the GPS.

Your tip to connect to RS232 and check as a terminal session is good. Will do that. If you have any other ideas, I appreciate any thoughts.

By the way, saw that you have an update for the seatalk bridge, but downloading it, only gives a new page with hex data. IS that correct? Save it as a .txt file?

Regards,

Peer
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FWallenwein
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Joined: Mar 26, 2006
Posts: 417
Location: Mannheim / Germany

PostPosted: Sun Jul 15, 2012 9:08 pm    Post subject: Reply with quote

Hi Peer

Quote:

Your tip to connect to RS232 and check as a terminal session is good. Will do that. If you have any other ideas, I appreciate any thoughts.


All right - I guess that a relatively easy was to test it.
If you need support - let me know.

Quote:

By the way, I am considering to buy your multiplexer as well, as I now also have a AIS receiver so two RS232 for connection to the laptop.


I also have a AIS Receiver here and I'm using it with the Multiplexer.
working just fine.

Quote:

By the way, saw that you have an update for the seatalk bridge, but downloading it, only gives a new page with hex data. IS that correct? Save it as a .txt file?


I would do a "left-Click" with the mouse on the link and choose "save as".
The Bridge updates are a .hex and a .eep file.
You will need this two files ( hex and eep ) for the megaload updater.

Regards,
Frank
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Peer
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Joined: Aug 22, 2010
Posts: 5

PostPosted: Mon Jul 16, 2012 8:44 am    Post subject: Reply with quote

Hi Frank,


Quote:

All right - I guess that a relatively easy was to test it.
If you need support - let me know.


Is it correct that in the terminal window, I only need to define the Com port, like in:
"Change port 4"
(if com 4 is the one to which the antenna is then connected)


What would you advice: to (re-)connect the antenna directly on the NAV600 or via the multiplexer?

Regards, Peer

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