Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 30-10-2016, 16:18   #1
Registered User

Join Date: Sep 2010
Posts: 1
GPS position jumping in a square pattern on Opencpn

I use an window 10 OS on a new Dell laptop (purchased yesterday Friday 10/29. I have successfully installed Opencpn on it and managed to obtain a GPS position from my Furuno GPS 31.

The problem is that after few seconds the position is moved in a square pattern (south America-Africa-Europe and back to the correct position). The NMEA Debug window show a red line (wrong or incorrect data) of data every so often. I suppose that is this wrong data that send the position around.

Any suggestion as how to fix this issue?

Serge from S/Y Kuaka
Crottaz is offline   Reply With Quote
Old 30-10-2016, 21:25   #2
Registered User
 
rgleason's Avatar

Join Date: Mar 2012
Location: Boston, MA
Boat: 1981 Bristol 32 Sloop
Posts: 13,510
Re: GPS position jumping in a square pattern on Opencpn

Bizarre, I'd get another GPS, but perhaps you are not getting a good signal. Is the GPS outside? Are you in a multi story building or something? Go outside with it, if you arent already there with an open sky. I suppose you are in the boat, perhaps try the cockpit.
rgleason is online now   Reply With Quote
Old 30-10-2016, 22:42   #3
Registered User
 
CareKnot's Avatar

Join Date: Sep 2016
Location: Greater Houston Galveston Metroplex
Boat: 1979 Endeavor 32
Posts: 337
Re: GPS position jumping in a square pattern on Opencpn

My backup GPS is an old Android phone with the ShareGPS app side loaded onto it. This phone is not rooted nor does it even have a sim card. Instead, every useless App is disabled to limit CPU demand, storage, heat generation and battery drain. It is in linked via Bluetooth and sealed in a watertight plastic case.

It trickle charges (.5 amps - enough charge when only using it for GPS) via a DigiYes® Ultra Slim Compatible Wireless Charging Receiver and a Turbot Wireless Charger, 3-Coils Qi Wireless Charging Stand. Or you can just buy an extra long USB charging cable, a ziplock bag and a little dab of epoxy to get the 1.5 amp charge.

Long story short, (I know, too late...) you can hack an old cellphone (or 2, 3, 4 or 5) to deliver NMEA compliant, GPS sentences to your laptop, tablet or whatever via WiFi or Bluetooth. This makes a great backup to your onboard GPS and can also be used to test your system.

Btw, with a long cord, you can place the phone anywhere within range of your laptops' Bluetooth or Wifi.

Hope this helps...

Quote:
Originally Posted by Crottaz View Post
I use an window 10 OS on a new Dell laptop (purchased yesterday Friday 10/29. I have successfully installed Opencpn on it and managed to obtain a GPS position from my Furuno GPS 31.

The problem is that after few seconds the position is moved in a square pattern (south America-Africa-Europe and back to the correct position). The NMEA Debug window show a red line (wrong or incorrect data) of data every so often. I suppose that is this wrong data that send the position around.

Any suggestion as how to fix this issue?

Serge from S/Y Kuaka
__________________
Kindest Regards,
Phillip
CareKnot is offline   Reply With Quote
Reply

Tags
enc, gps, opencpn

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Two Anchors In-Line vs In a 'V' Pattern for Storm Anchoring Loquat Anchoring & Mooring 29 16-06-2017 04:17
For Sale: Parasailor: 125 Square Meters (1345 Square Feet) Steve Rakoczy Classifieds Archive 5 03-02-2012 16:51
Paisley sunbrella fabric pattern? virginia boy Construction, Maintenance & Refit 4 29-06-2011 20:08
Anchor Sail Pattern / Dimensions? Captain Jaz Deck hardware: Rigging, Sails & Hoisting 8 16-07-2009 18:29
Hobe 14 Sail Pattern Drexel Engineer Construction, Maintenance & Refit 1 04-05-2009 04:59

Advertise Here


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 16:53.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
×

ShowCase vBulletin Plugins by Drive Thru Online, Inc.