- Maximum RA guide pulse is 1000ms (1s). If PHD is not locking on to the star and it says "dur=1000" in the status bar, a better polar alignment is required.
- RA hysteresis is used in a 2-term weighted moving average:
RA_dist = (1.0 - RA_hysteresis) * RA_dist + RA_hysteresis * last_guide
Cheers,
Steve