COG jumping randomly

[Smniebuhr]

Hello,

Our autopilot was working fine when we put the boat in storage in November and now our autopilot isn’t working. Our heading reads correct but the COG jumps all over the place, even when the boat is parked on the trailer. any suggestions here? Yes the device instance for the SCX20 is set at 0 and yes the pg700 has been taken out.

 

[jp498]

COG is meaningless when parked on the trailer. It's a calculation of angle based on movement. e.g. continuously plot points on a coordinate graph and find the angle between them.

 

[Smniebuhr]

Any idea why the autopilot isn’t working when we are on the water?

 

[TheReaper]

What exactly isn't working? Did the PG700 get removed before or after storage? Please be more specific