My Az-El mount is sitting on the bench, almost ready to go to the field. But, it doesn't seem ready yet. The hardware was set up and ranges configured with the Maestro Control Center. Azimuth is on channel zero and elevation on channel one. I set the Az to rest at North with permissible swings to South in either direction. This gives me limits at 1385 (-180), 1500 (N) and 1615 (+180). It all works fine with the Maestro Control. I set the MP PWM at "235", the difference between my south-to-south PWM values and the angle range to 360 (South to South). Likewise I set the Elevation to range between horizontal and vertical. These settings were "applied" to the maestro and work correctly with that program's sliders.
The first odd effect in MP is that the Az control has to be trimmed to about +100 to maintain North position. Does this indicate anything wrong in my setup so far? I would think that MP is reading the Maestro config and using its "center" position for North.
Next, I tested by playing back a tlog file through MP. No APM connected, just the log replay. The Az appears to be tracking at twice the desired angle. When the a/c is east of home, the Az points south. Does this indicate a different setup error?
Now, a serious problem. When the a/c passes overhead of Home, the az swings more than 360 degrees, then returns back to the new track as the plane moves away. I don't know if that behavior is again a setup problem, but it's not possible to connect anything to the Elevation platform when it's going to spin like that.
I've attached the Maestro config file and the tlog. Thanks.