Just a bit of info on the Meades
Quote:
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Do modern mounts over-ride PEC when receiving guiding input, or do they use it to augment PEC replay?
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In the Meades, they have a std base tracking rate based on sidereal
When PEC is on, the system adjusts this rate once every 2.4seconds ( approx ) when polar. This new base rate is the std rate plus PEC adjust.
All handbox or guider adjusts then use this new rate as their base rate,
so the PEC isnt "overridden" when a guide request is sent.
Thus, for scopes with really bad PE, having a good PEC model can greatly reduced the load on a guider.
Eg, there is one user who has a PE of approx 120arcsec.
Looking at his data, this 120arcsec occurs over approx 168 secondstime )
Sooo, without a PEC model, the guider will always be playing catchup to the tune of 0.7arcsec per second.
The Meade gears are straight cut, and have a very wide variation in production tolerances, hence the data from each scope is different.
Best answer is try it and see.
Andrew