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Hi John
Chasing down auto guiding problems can be real fun eh – not!
I once solved one of my problems by turning down the aggressiveness of the guiding correction. I think this reduced the magnitude of the full correction to say, 50%, as I was finding that the correction was too aggressive and overshooting, so the next one would then overcompensate in the opposite direction and so on, leading to a oscillation effect.
This was in CCDSoft which has an aggressiveness setting option – I’m not sure if PHD does?
Good luck – hope you get it sorted.
Cheers
Dennis
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