I have my Mach2 mount setup in my backyard under a TG365 cover and on one occasion when one axis wasn’t behaving properly, I found that I just needed to ensure that the barrel connectors that secure t

My Mach2 delivered in January, has the same issue. As others have noted, the RAPAS seems to work fine.

#Mach2GTO

Use APPM to collect the data for your dec arc.

PegasusAstro had also posted this today as well. "Price range will be close to 350-400 USD and yes, we aim to provide the gps coord / temp and abs pressure to 10micron interface. "

#APCC

You mean a Mach 2?

Shouldn't you be creating a high port number virtual port (i.e. Com21, Com22, etc) rather than a low number frequently used port like Com4?

Return it for the correct adapter. I bought one from telescopes.net and was sent one like you described. It was labeled AP-SM. I returned it and was sent the proper one that was threaded for the AP-90