gps-details
3.0508.0 - 15 Jul 2024
Overview
The 3.0508.0 release in Jul / Aug 2024 exhibits issues because speedsurfing behaves much like windsurfing, which is non-doppler and thus prone to spikes. It was the first release for the APEX Pro and VERTIX to include the changes of 3.0506.0 which made the issues apparent.
The non-Doppler speed issues of 3.0506.0 and 3.0508.0 were documented on 19 Aug 2024 and fixed in 3.0508.0219 beta.
In the absence of a public fix, owners of an APEX Pro or VERTIX with firmware 3.050x.0 (released Aug 2024) are encouraged to downgrade to 3.0309.0.
Satellite Systems
| APEX Pro | VERTIX | APEX 2 | APEX 2 Pro | VERTIX 2 / 2S |
|---|---|---|---|---|
| 20047 | 20047 | 3.1.0 | 3.1.0 | 3.1.0 |
Example
The image below shows the very first file where an issue was spotted, where the VERTIX reported 2 knots higher than the GW-60.
When looking at the speeds in the FIT (solid blue) vs the position-derived speeds (dotted blue) it can be seen they are near identical. Since the position-derived speeds from Sony-based watches have always been prone to this level of sawtooth, it strongly suggests that is being used as the speed.
