. NAVILOCK of μ-BLOX-6 module reference design http://www.dlbilder.de/produkte/orig/37e6f66c5f1365597c04b82026a2fb85.jpg m ~ 30€ More or less worthless, no screw hole to bolt on copter frame or Naze32, the documentation is U-blox general, nothing that tells us specific regarding the design hence to...