forum.heinrichsweikamp.com

Hi,

I have 2 OSTC (2 & Sport, see ref. w/ my signature) and I have the same issue w/ the compass on both (w/ latest versions, V3.37 & V10.97.

I made the standard calibration on both one month ago (no smartphone around, nor big metal "device") and was OK w/ indications (5 / 6 ° of gap between both and same w/ "real" north, but OK).

Some days ago, on a boat, I made an heading w/ my OSTC 2 (on my arm, stored before close to my smartphone, the Sport is "always" hooked on my wing as spare, rarely close to a smartphone) and start my dive ; under water, I noticed strange values on my "2" compass. After diving I checked and the gap btw both OSTC was approx 20°, and my Sport was closer to real values.

Today, I decide to calibrate once again both OSTC, w/ same results as the previous one (5/6° of gap) ... but once I put one of my OSTC close (a few cm) to my iPhone, it showed strange values (OK, I can understand, there is a coil inside for wireless charging, iPhone 15, and a lot of "waves"). BUT, once the OSTC far from my iPhone, there is now a big gap (20°), remaining until a new calibration.

So, it looks like both OSTC are skewed "definitely" once they have been put close to a smartphone ; any idea about ?

I still have the same issue (see previous post), but w/ one new !

I made a new calibration on both OSTC (a "2" & a Sport), exactly same location, same way to proceed, just one after the other, w/o any metal big weight around ; considering this is the best way to proceed and to compare afterward :

The "2" is quite OK, w/ a small deviation (less than 10°) compared to the compass of my iPhone 15 and geography of my house ; that's OK for me !
The "Sport" showing, toward the same direction, 60°, clearly not OK

I made this test (calibration and toward North) twice again, w/ the same results.

Any idea about what happened w/ my "Sport" ? (it's equipped w/ a 14500 battery, quite fully charged).

Thanks for your feedback.

No one for an advice ?