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Michael, Brian has a G11GT mount, which has a Titan-based RA and a G11-based DEC assembly. RA has a 270 tooth wheel, which translates into just under 320 seconds worm cycle. Regards,

Ray, This is a quote directly from the Losmandy G11 mount manual, which says the G11 period is 4 minutes = 4×60sec =240 sec, right? Here is the text, from the Losmandy

Sorry Michael Herman, but I'm afraid you are using the wrong worm period. The worm period is about 319.1 seconds, over which a 42.55-second frequency repeats 7.5 times. This is not correctable using

Hi! Great, thanks!! Will play with this next clear night.... next year or so, I guess... :) Best, Magnus

I am certain you are right... if you can identify which gear is the culprit, that should be also sent to the EQMOD group who made up PECprep to add to their G11 list. How does that 42 sec peak

Michael I would be happy to show you the 42 sec interval. i have a G11GT, and I think the tucked in motors introduce new gearing ratios (probably true for G11G as well). This has also been

Unknown on the new G11G system... but you have to understand the contributors to noise in the PE and PE error itself. It was thought that only the worm mattered, and that of course rotates in ~239.4

I have the same issues with both axes of my new-design G-11G. I am still going through the trouble shooting process but expect I eventually will have to do the bearing/washer mod. How much does this

Comments... 1. You don't need any PC connection, per se, to run the Gemini PEC recorder. You could use an autoguider camera and the ST4 port to do it I suppose. 2. If you are looking at PHD2 on

I know this is a frequent subject for debates, but proper PEC programming does help prevent tracking errors before they happen. This results in better guided or unguided performance. An autoguider

PE correction helps for both guided and unguided imaging. Some errors cannot be easily guided out, and PEC helps smooth things out so the guiding is better My G11GT has a nasty 42 second recurring

Do you have to use an Ethernet connection to do all the pec runs, or can you use just USB connection? I only use USB and can't get Gemini.net, right. I have a new G811G with gemini-2. No pempro

Magnus, You are correct : you can use your autoguider with the Gemini's built in PEC recorder /corrector. You skip using the old hand controller method. The correction signals from the autoguider

I think the big question is what is PEC for? It is my view that it is there to get you better unguided exposures. I believe that if you taking guided exposures, then you don’t need PEC (at

Hi! I'm trying to get my head around how I can train PEC in a good way. I understand that I can do it manually, that is with an eyepiece and manually issuing guide commands. But: If I can do that

Hi! Thanks a lot! Yes, I'd be very happy to buy a bunch (3 might be enough :)) belville washers from you, and see what difference that makes!! Can you email me off the list? magnus @ vista .

Used not sure how old......

"Recently Purchased a used G11 with G1 controller" i'm guessing it's not under warranty B

aha! I'd like to look at your PE for clues. Please send me the unguided PHD2 logfile, with info on your Scope FL aperture, and Autoguide camera pixel size X and Y, and any Barlow info (same data

Forgot to mention I ran 3 worm cycles unguided thru Pecprep and bearings seem ok according to the tool