Axis Calibration Issue

[ark1320]

Hi John,

In the past I've always used a single throttle axis to control both engines of an aircraft. I now am trying to assign a separate axis to each engine of the C414, and in this case the throttles do not have a reverse range. The assignments are profile specific.  The calibration looks like this:

and the entry in the FSUJIPC.ini file under the profile specific JoystickCalibration section looks like this:

Throttle1=-16380,-512,512,16380/32
Throttle2=-16384,-512,512,16209/32

Does this look correct?  If so, I don't understand why when a throttle is all the way back, there is 0 OUT for -16384 IN. Is that just the consequence of No reverse zone? And where did the +-512 come from in the ini file entries?  I expected the FSUIPC7.ini entry to look similar to what I get when I use a single axis for both engines, e.g. I expected Throttle1=-16384,16383 and Throttle2=-16384,16383 .

However, this dual axis setup does seem to work as far as the operation of the throttles in the sim is concerned! So it seems there is something fundamental I don't understand.

Thanks,

Al

 

[John Dowson]

2 hours ago, ark1320 said:

the entry in the FSUJIPC.ini file under the profile specific JoystickCalibration section looks like this:

Throttle1=-16380,-512,512,16380/32
Throttle2=-16384,-512,512,16209/32

Does this look correct?

Yes.

2 hours ago, ark1320 said:

If so, I don't understand why when a throttle is all the way back, there is 0 OUT for -16384 IN. Is that just the consequence of No reverse zone?

It is a consequence of the throttle axis that you have assigned to, which accepts that value range. This is what calibration does - calibrates your devices axis range to that accepted by the axis you have assigned to:

 

2 hours ago, ark1320 said:

However, this dual axis setup does seem to work as far as the operation of the throttles in the sim is concerned! So it seems there is something fundamental I don't understand.

So what is your 'axis calibration issue'  then? If it is just a question, please say that it is a question in the topic title, not issue.

I wouldn't worry about this. I don't fully understand all aspects of the calibration, and a lot of the stuff is there for historic purposes and for support of older controls, some of which probably aren't that relevant to MSFS.

John