Should have clarified: previous generation timing receivers. Yes, self-survey + stationary mode + O/D mode where you can track a single SV and such, are essenti

Should have clarified: previous generation timing receivers. Yes, self-survey + stationary mode + O/D mode where you can track a single SV and such, are essential for stable time sync, not just sawtooth. There is an exception re. sawtooth, but only a recent one: the Furuno GT-100, priced between the ZED-F9T and the Mosaic-T, has 200 ps clock resolution and doesn't even provide a quantisation error output.