Thanks for the quick reply Ray

Hi Mark, What evidence do you have to support that conclusion? TPoint and APCC are best fit models to data and thus “checking” or “unchecking” model terms will change the polar alignment

Hi, In the last couple of months I compared the MyT mount with the Mach1 mount. I am imaging mostly from my backyard where I can leave the scope out for a couple of nights. Still, with two kids and

Barry, Thanks for the info. For the extra $10, I suspect thePowerwrx model might be preferable for those who do imaging, since it has a“dark blue screen background” instead of bright

Now that the CP4 uses Powerpole connectors, some might be interested in this handy little volt/amp/power meter that easily plugs in series with a Powerpole cable:

Hi Vince, You are welcome. I forgot to mention that you can download the 900 GTO User Manual from the Astro-Physics website. Richard

Hi Richard, Many thanks for the information. I am used to work with ASCOM so I think I will be OK with the information you gave me. Vince

Hi Vince, I do not know how much experience you have so this might be too simplistic. To get started only controlling the mount: 1. Laptop with a LOT of memory....

Glad to help! Floyd

No, you don't have to upgrade the keypad. Rolando Sent from AOL Mobile Mail

Newegg.com sells refurbished Windows 7 Lenovo laptops for under $300. Sometimes closer to $200. Great bargains because Lenovo laptops are built like tanks. Jerry Gardner www.theconstellationranch.com

Get a second laptop. They are cheap!

I have a 1600 as the main mount in the observatory. Run with the ASCOM driver/The Sky, I think on COM3 (via serial card). Isthe automated system, run with ACP for imaging. I start

Hi Joe, Honestly, I don't know. The CP3 controller may actually be more accurate as APCC uses the RA/Dec/Sidereal time values, which are rounded off compared to the internal step counts that the

Bingo. Thanks very much. This would have been easily found by most people, but I am afflicted with macular degeneration that, in my instance, manifests itself as difficulty in distinguishing objects

I received the AP newsletter and it offers prices forabsolute encoders for the 1600...are the user installed kits now available fororder? Another question: to upgrade to the CP4 controller on

Ray, Just curious, but was the round off error attributed tothe “old micro processor” chip in CP3? Would the CP4’s new advanced uproc, using floating point instead ofinteger arithmetic,

Hi Larry, The difference is just a round off error between the two. For historical reasons all of the Park positions are very slightly off from perfect positions. -Ray Gralak Author of APCC

Why is it that APPC and the V2 driver report the azimuth value after moving to the park 3 position as non zero? APCC reports it as 12" and the V2 driver reports it as 13". Shouldn't both show

Hi, I have just manage to get a second hand AP 900 gto3 and I know absolutely nothing about this mount. I would like to connect it to a laptop and i am wondering what bits of equipment I need to do