Satellite passing westward through North

[Kenneth Barry]

I am a recent convert from Satpc32 to Skyroof. I have everything working including a Satnogs rotator controlled by an arduino uno running my code. I am using EasyComm I protocol.

I need help with a problem. A satellite that is starting east of north traveling west, when it gets to zero the output starts to rapidly climb up in degrees clockwise instead of going to 360 and counting down from there. The app shows the correct azimuth and if I stop tracking and start back tracking it corrects.

File attached - what am I doing wrong? Any help is appreciated.

Thanks,

Ken (KF0AYY)

[Alex VE3NEA]

It looks like the smart rotator algorithm uses one of the optimiztations described here:

https://ve3nea.github.io/SkyRoof/users_guide/smart_antenna_rotation.html

It may not work correctly if you enter wrong az/el rotation range in the settings.

[Ken Barry]

Alex:

Thanks for your response - that does appear to be the issue.  If I up Az to 720 the Rotctl errors on "out of range" when it gets 370 (for 10).  Back to the rotctld manual!

Thanks for the quick response,

Ken (KF0AYY)