CH Throttle Quadrant and FSUIPC Throttle Problem in FSUIPC Support Pete Dowson Modules Posted October 21, 2019 · Report reply Thanks for the reply Thomas. I had tried without the CH Control Manager but couldn't get the CH Quadrant to calibrate properly. The first two levers actually show up in the Windows API as a single joystick with an X and Y axis (have not idea why). The calibration would trip out when I tried to calibrate those two levers. That's why I thought the CH Control Manager was necessary. This morning I started all over. I uninstalleld CH Control Manager, reinstalled FSUIPC, calibrated in the Windows API (the first two levers still show up as a single joystick but it worked this time) and yes the problem is solved. Thanks for your help.