Re: New file uploaded to ap-gto


Roland Christen
 


you should probably try using the Lowpass2 filter for DEC corrections,
Good point. We'll give it a try.

Rolando


-----Original Message-----
From: stephenjwinston@... [ap-gto]
To: ap-gto
Sent: Tue, May 7, 2019 11:34 am
Subject: Re: [ap-gto] New file uploaded to ap-gto



Hi Roland,

The default guide algorithms in PHD2 do indeed attempt to correct for hysteresis and keep a history of previous guide corrections and apply that history to the current correction.

Given the Mach-2 with encoders should not be suffering from hysteresis, you should probably try using the Lowpass2 filter for DEC corrections, instead of the standard Resist Switch algorithm.  You can select this on the Algorithms tab of the Brain settings.


"LowPass2 is a very conservative, high-impedance algorithm that may be a good choice for users with good seeing conditions and well-behaved mounts with little or no declination backlash."

It would be interesting to see how Lowpass2 behaves, even with higher aggression settings.

Steve



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