Note: this entry only applies to Roadie 1. For information about Roadie 2 please refer to the Roadie 2 tutorial.

This means that Roadie was not able to perform calibration reliably, the reasons can be:

  1. You rotated Roadie while calibrating

  2. You plucked the wrong string at one point during the calibration

  3. There is too much noise around you (in which case check here for a solution).