Re: AP1600 autoguiding gone bad


Steve Reilly
 

I would also look for loose equipment, snagged cables, and software settings.  It sounds like you image using TSX software so maybe try a simple stand alone program and see what happens without TSX.  What camera/guider are you using?

 

-Steve

 

 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of Roland Christen via groups.io
Sent: Saturday, January 9, 2021 6:46 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] AP1600 autoguiding gone bad

 

P.S. unplugging the keypad won't do a thing one way or other. The keypad does not communicate with the mount unless you push one of the buttons. It is totally silent at all times and does not interfere in any way with any other program that you connect to the mount.

 

Rolando

 

-----Original Message-----
From: Roland Christen via groups.io <chris1011@...>
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Sent: Sat, Jan 9, 2021 5:44 pm
Subject: Re: [ap-gto] AP1600 autoguiding gone bad

Guide at 1x. Going slower will not help.

Make sure you have a good calibration run.

Remove all backlash compensation, both in the keypad and in the guide software.

 

If using PHD2, you should first use the mount wizard to find out what you have fundamentally. You can find out things like PE, Dec backlash, sky scintillation and other good stuff.

 

A good calibration near the celestial equator and meridian is a MUST. Without that, you won't be able to guide successfully.

 

Rolando

 

-----Original Message-----
From: Greg Bradley via groups.io <bradgregley10@...>
To: main@ap-gto.groups.io
Sent: Sat, Jan 9, 2021 5:31 pm
Subject: [ap-gto] AP1600 autoguiding gone bad

I have a usually reliable AP1600 mount.
It is slewing fine but autoguiding suddenly went wild a little while ago.
So normally I get very small guide errors .2 to .6 arc sec
guide errors. They suddenly went to 15-20.
I couldn’t get it to callibrate either using relays.

I switched to pulse guiding and I could callibrate.

But guiding is still wild. I tried various settings
for the guiding.

I pulled apart the electronics box and inside it looks lile
new.

I noticed in the driver you can set the guide rate and it was set at 1 so I reduced that to .5 and I can set it lower. I will disconnect the hand controller
tonight in case that is having an effect.

Any suggestions?

I am using SkyX, ascom mount and the AP driver. Its an AP cp3 electronics.

I am able to do plate solving, polar alignment using TPoint so go to’s are working.

Greg

Greg


--
Roland Christen
Astro-Physics


--
Roland Christen
Astro-Physics

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