Cruisers Forum
 


Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on Cruisers Forums. Advertise Here
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 19-06-2024, 20:33   #1
Registered User

Join Date: Sep 2021
Posts: 129
Question B&G Zeus 3S uses magnetic north on chart?

Trying to make sense of the attached picture… heading is 000, display is set to North Up. However clearly we are heading 5-7ish degrees East. I also notice the “M” after the heading in the header bar, which I assume stands for Magnetic?

Am I interpreting this correctly? Is this how everyone else is doing it? Seems strange but what do I know.
Attached Thumbnails
Click image for larger version

Name:	IMG_0967.jpg
Views:	40
Size:	422.1 KB
ID:	291137  
silvercreek is offline   Reply With Quote
Old 19-06-2024, 21:33   #2
Registered User

Join Date: Jan 2023
Posts: 1,721
Re: B&G Zeus 3S uses magnetic north on chart?

If you do not navigate in magnetic, just reset the options of your MFD to use True headings.

One way is not "better" they are different, and for different needs. Pick one and use it consistently.
SailingHarmonie is offline   Reply With Quote
Old 19-06-2024, 22:37   #3
Registered User

Join Date: Sep 2021
Posts: 129
Re: B&G Zeus 3S uses magnetic north on chart?

Quote:
Originally Posted by SailingHarmonie View Post
If you do not navigate in magnetic, just reset the options of your MFD to use True headings.

One way is not "better" they are different, and for different needs. Pick one and use it consistently.
As far as I can tell there is no way to do that for my MFD. Id love to be proven wrong
silvercreek is offline   Reply With Quote
Old 20-06-2024, 01:50   #4
Registered User

Join Date: Mar 2011
Posts: 720
Re: B&G Zeus 3S uses magnetic north on chart?

Perhaps a case of RTFM together with learning what the mnemonic "True Virgins Make Dull Companions Add Whiskey" means.

The Status bar "A 000M" indicates that your autopilot is engaged in Auto mode and is steering 0 M. Note that the Autopilot setting is also displayed in the side bar.

The chart display orientation can be set to either "North Up", "Heading Up", "Course Up" or "Look Ahead".
stevead is offline   Reply With Quote
Old 20-06-2024, 03:48   #5
Registered User

Join Date: Jul 2020
Location: Virginia, USA
Boat: Hunter 340
Posts: 1,280
Re: B&G Zeus 3S uses magnetic north on chart?

It is the opposite. Looks like the chart is true north up and you are on a course of 0 degrees magnetic.
Statistical is offline   Reply With Quote
Old 20-06-2024, 04:05   #6
Moderator

Join Date: May 2014
Boat: Shuttleworth Advantage
Posts: 2,440
Images: 3
Re: B&G Zeus 3S uses magnetic north on chart?

North Up on chart plotters is always True North. Due to variation at different places on the globe, orientating a chart to Magnetic North would be impossible (consider an electronic chart covering a whole ocean). To see the variation/declination on a global scale you would use an Isogonic chart.

If you want bearings to correspond to your compass then they should be given as Magnetic. If the autopilot is sailing on a bearing as opposed to a WP then it to will be steering on a Magnetic course. Instrumentation including the AP can take account of the Magnetic variation, using in built isogonic values based on your location and display bearings as True which can be confusing.
Tupaia is offline   Reply With Quote
Reply

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
Zeus 3S and Ur-Zeus Z8 Compatibility? Dockhead Marine Electronics 0 12-10-2023 03:07
Airmar "Transom&q uot ; style triducer does not give wate Franziska Marine Electronics 3 04-10-2021 12:45
Want To Buy: Looking for Zeus Touch or Zeus 2 Silver_Surfer General Classifieds (no boats) 0 12-09-2019 06:05
Hydraulic-magnetic and Magnetic Overcurrent Circuit Breakers chrysm Electrical: Batteries, Generators & Solar 4 17-03-2014 00:13
True North or Magnetic North ? Mary Farmer OpenCPN 24 31-10-2011 12:39

Advertise Here


All times are GMT -7. The time now is 02:58.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.