Dear AP friends,
I am the owner of a AP900 GTO CP3 mount and a GT130 OTA. I waited in the long-line for many years to get the GT, and I use it mainly for imaging. The APM is a different story, I purchased it second hand from a guy who was working offshore near my hometown in Barcelona. After I purchased this mount almost all my problems with previous mounts went away. From the very first day, I noticed the upper serial port did not seem to work (could not find a COM port working for it). However the lower port did seem to work nicely: at a ceratin COM, the AP driver detected the CP3 "Rev I" unit.
However in the last couple of years I found the driver got hung up and my imaging runs were frequently ruined. I discarded software problems by setting up a different computer and trying different Microsoft OS (W7, W10). I am using SkyX, Maxim DL, and CCD Commander. The hung ups always look the same: I can attest this by checking the Windows Task administrator, where the AP Driver is shown as "not responding". I have tried again many times to search for the upper serial port, but is does not seem to respond. This has become a serious limitation now. I recently discovered that the lower port might present its own limitations, and I wonder if this might be reason behing what I am experiencing.
I recently purchased a CP2 unit for little money, which I will try. Given the basic things I am nowadays doing, I believe it will suffice, but I am wondering if AP will service my CP3 unit, and if it would, if it is really worth it. I would actually purchase the CP4, but it is a more relevant investment, this is something I might eventually do.
If you have read so far, thanks. Hopefully I will soon get the CP2 I just got,
Merry Christmas and wish you a great new year,