jonnyswamp Posted July 8, 2023 Share Posted July 8, 2023 Fucked about with my plotters whilst fucking about with my drowned radome and now the 2 older units are 90 degrees out when under way Altered settings to course up and heading up and stays the same, only changes when selecting North up What am I missing The newer plotter is fine Quote Link to comment Share on other sites More sharing options...
daio web Posted July 8, 2023 Share Posted July 8, 2023 i only ever keep mine on north up jon it might be because you have diconected your radome maybe Quote Link to comment Share on other sites More sharing options...
Odyssey Posted July 8, 2023 Share Posted July 8, 2023 Sounds like heading sensor is out…. I’ve got same issue, need to look at mine to get it sorted Quote Link to comment Share on other sites More sharing options...
JDP Posted July 8, 2023 Share Posted July 8, 2023 Have you tried calibrating it ? Have a look at the YouTube videos how too, it's pretty easy. A friend was having issues with his every time his teenage son took the boat out and asked if I would take a look. Took it out on the water and it was fine but still ran through the prompted calibration settings with them. Next time they headed out they had issues so bought a new heading sensor, which again played up each time the eldest son took the boat out. Eventually I hopped onboard when the son took the boat out with his mates to find out what was going on as the dad was about to change the two 12in simrads in frustration. What the son was doing was doing was taking a bluetooth boom box speaker which he was placing to close to the electronic compas!!!!!! These ariels can be effected by very slight magnetic fields, even a mobile phone next to them can alter headings. Just make sure you don't have anything close that could be effecting it. Quote Link to comment Share on other sites More sharing options...
jonnyswamp Posted July 9, 2023 Author Share Posted July 9, 2023 20 hours ago, Odyssey said: Sounds like heading sensor is out…. I’ve got same issue, need to look at mine to get it sorted It only happens on the 2 older plotters, fine on the newer one Quote Link to comment Share on other sites More sharing options...
jonnyswamp Posted July 9, 2023 Author Share Posted July 9, 2023 12 hours ago, JDP said: Have you tried calibrating it ? Have a look at the YouTube videos how too, it's pretty easy. A friend was having issues with his every time his teenage son took the boat out and asked if I would take a look. Took it out on the water and it was fine but still ran through the prompted calibration settings with them. Next time they headed out they had issues so bought a new heading sensor, which again played up each time the eldest son took the boat out. Eventually I hopped onboard when the son took the boat out with his mates to find out what was going on as the dad was about to change the two 12in simrads in frustration. What the son was doing was doing was taking a bluetooth boom box speaker which he was placing to close to the electronic compas!!!!!! These ariels can be effected by very slight magnetic fields, even a mobile phone next to them can alter headings. Just make sure you don't have anything close that could be effecting it. Usually keep phone in one of the cup holders and hasn't ever been an issue until now I'll try a reset again next time I go down JDP 1 Quote Link to comment Share on other sites More sharing options...
Gordmac Posted July 10, 2023 Share Posted July 10, 2023 Mine has an issue, it can be 180deg out. Doing the calibration, which is a pain trying to go so slowly, it will get fairly close but drift off over a period. The autopilot has a habit of applying full lock which is interesting at speed. Switching it off means the plotter takes direction from GPS and is accurate, I only really need it for the rudder indicator although the autopilot can be useful. Have you tried switching the thing off? Quote Link to comment Share on other sites More sharing options...
jonnyswamp Posted July 10, 2023 Author Share Posted July 10, 2023 4 hours ago, Gordmac said: Mine has an issue, it can be 180deg out. Doing the calibration, which is a pain trying to go so slowly, it will get fairly close but drift off over a period. The autopilot has a habit of applying full lock which is interesting at speed. Switching it off means the plotter takes direction from GPS and is accurate, I only really need it for the rudder indicator although the autopilot can be useful. Have you tried switching the thing off? If you mean switching the plotters off, yes I have, still the same I haven't got auto pilot Quote Link to comment Share on other sites More sharing options...
MegaByte Posted July 10, 2023 Share Posted July 10, 2023 I thought plotters only showed North up unless they had compass input. Quote Link to comment Share on other sites More sharing options...
GPSguru Posted July 10, 2023 Share Posted July 10, 2023 8 hours ago, jonnyswamp said: If you mean switching the plotters off, yes I have, still the same I haven't got auto pilot Have you got a heading sensor or fluxgate ? Quote Link to comment Share on other sites More sharing options...
Gordmac Posted July 11, 2023 Share Posted July 11, 2023 Without a fluxgate or similar the plotters should take heading from GPS. How does the radar get its heading? Quote Link to comment Share on other sites More sharing options...
jonnyswamp Posted July 11, 2023 Author Share Posted July 11, 2023 11 hours ago, GPSguru said: I've got a fuse marked up as a fluxgate compass, is it anything on this photo ? Quote Link to comment Share on other sites More sharing options...
Saintly Fish Posted July 11, 2023 Share Posted July 11, 2023 2 hours ago, jonnyswamp said: I've got a fuse marked up as a fluxgate compass, is it anything on this photo ? No, the fluxgate compass is normally positioned away from any electronics or metallic objects. Mine is in the forward compartment of the bilge. It doesn't look like a regular compass though as in there are no degrees or visible numbers etc, just a black box. jonnyswamp 1 Quote Link to comment Share on other sites More sharing options...
GPSguru Posted July 11, 2023 Share Posted July 11, 2023 3 minutes ago, Saintly Fish said: It doesn't look like a regular compass though as in there are no degrees or visible numbers etc, just a black box. Thats because it is an electronic compass, in reality it is a number of highly magnetic toroids and some electronics. Quote Link to comment Share on other sites More sharing options...
GPSguru Posted July 11, 2023 Share Posted July 11, 2023 2 hours ago, jonnyswamp said: I've got a fuse marked up as a fluxgate compass, is it anything on this photo ? Nah, nothing there. Did you move anything else when you took off the raydome ? As you don't have auto pilot, the best solution will be to go into the plotter settings and select internal GPS as the source . I suspect you new plotter is set up that way. Have a fish pic 😉👍 Geoff and jonnyswamp 1 1 Quote Link to comment Share on other sites More sharing options...
Saintly Fish Posted July 11, 2023 Share Posted July 11, 2023 8 minutes ago, GPSguru said: Nah, nothing there. Did you move anything else when you took off the raydome ? As you don't have auto pilot, the best solution will be to go into the plotter settings and select internal GPS as the source . I suspect you new plotter is set up that way. Have a fish pic 😉👍 Tsk tsk Ian. GPSguru 1 Quote Link to comment Share on other sites More sharing options...
Gordmac Posted July 12, 2023 Share Posted July 12, 2023 Pull the fluxgate fuse and see if that makes a difference. I don't think my plotter has an option to ignore the fluxgate, unless I switch the autopilot off the plotter automatically uses the fluxgate for direction. jonnyswamp 1 Quote Link to comment Share on other sites More sharing options...
Saintly Fish Posted July 12, 2023 Share Posted July 12, 2023 Not sure if this will help, but this is the manual for my old autopilot system. It had a section about reprogramming the fluxgate. Probably not the same model but may give you some hints?? http://geonav.kgk.ee/autopilots/AP201/man201_ENG.pdf jonnyswamp 1 Quote Link to comment Share on other sites More sharing options...
jonnyswamp Posted August 6, 2023 Author Share Posted August 6, 2023 (edited) Haven't had a lot of time to get to the bottom of this with work and holidays taking priority But, managed to get out last week for a couple of hrs (no report as it's just dogs, rays, congers etc here atm) and had a play about with the system Remembering back to the original fault/problem, it only happened after I did a factory reset on all three mfd's, the 7410 xsv is fine, the other 2 (also Garmin) 5212 and 5012 developed this fault Found out how to reset the fluxgate compass (it should reset itself automatically apparently) so gave it a try Whilst underway with both screens showing the course to be approx 90 degrees out, I manually reset the compass and as it was going through it's resetting process (solid blue light) both screens rotated the course back correctly This only stayed like this for about 10 secs until the compass had finished it's reset (blinking blue light) then both screens went back to showing an incorrect course The 7410 xsv continues to work as it should, don't think this is connected to the fluxgate compass as course stays the same when resetting ? Any pointers ? Edited August 6, 2023 by jonnyswamp Quote Link to comment Share on other sites More sharing options...
Saintly Fish Posted August 6, 2023 Share Posted August 6, 2023 2 hours ago, jonnyswamp said: Haven't had a lot of time to get to the bottom of this with work and holidays taking priority But, managed to get out last week for a couple of hrs (no report as it's just dogs, rays, congers etc here atm) and had a play about with the system Remembering back to the original fault/problem, it only happened after I did a factory reset on all three mfd's, the 7410 xsv is fine, the other 2 (also Garmin) 5212 and 5012 developed this fault Found out how to reset the fluxgate compass (it should reset itself automatically apparently) so gave it a try Whilst underway with both screens showing the course to be approx 90 degrees out, I manually reset the compass and as it was going through it's resetting process (solid blue light) both screens rotated the course back correctly This only stayed like this for about 10 secs until the compass had finished it's reset (blinking blue light) then both screens went back to showing an incorrect course The 7410 xsv continues to work as it should, don't think this is connected to the fluxgate compass as course stays the same when resetting ? Any pointers ? Is the fluxgate compass knackered?? Quote Link to comment Share on other sites More sharing options...
jonnyswamp Posted August 6, 2023 Author Share Posted August 6, 2023 (edited) 23 minutes ago, Saintly Fish said: Is the fluxgate compass knackered?? I don't know mate, it all coincides with me doing a factory reset a few weeks ago Next time I'm down, I'll try another reset and see what happens if no-one else can help EDIT I could well have turned something off (or vice versa) within the plotter settings whilst fucking about with it I suppose Edited August 6, 2023 by jonnyswamp Quote Link to comment Share on other sites More sharing options...
JonC Posted August 6, 2023 Share Posted August 6, 2023 Have you tried turning it off and in again? Quote Link to comment Share on other sites More sharing options...
Saintly Fish Posted August 6, 2023 Share Posted August 6, 2023 1 hour ago, JonC said: Have you tried turning it off and in again? Off and in? Is this a new technique you've mastered? Quote Link to comment Share on other sites More sharing options...
JonC Posted August 6, 2023 Share Posted August 6, 2023 3 minutes ago, Saintly Fish said: Off and in? Is this a new technique you've mastered? Chuck it the water overboard ? Quote Link to comment Share on other sites More sharing options...
Odyssey Posted August 6, 2023 Share Posted August 6, 2023 8 hours ago, jonnyswamp said: I don't know mate, it all coincides with me doing a factory reset a few weeks ago Next time I'm down, I'll try another reset and see what happens if no-one else can help EDIT I could well have turned something off (or vice versa) within the plotter settings whilst fucking about with it I suppose Sounds like you just need to do a calibration. Mine has been correct for 5 years then 3 weeks ago was out by 30deg. Quick google search, put it into calibration mode for the heading sensor/flux gate compass, you basically do a big circle at low speed and ta-da sorted 🙂 jonnyswamp 1 Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.