TDC madness

[Pisces]

Originally Posted by NiceSub

Hello there,

I am having a strange situation with the TDC on my Sboat. Basically I am tracking a task force with two CVs and I manage to penetrate the screen. I turn ON PK and calculate the target speed as usual with all other target that I sunk so far.
I estimate target AOB and use stadimeter to set relative bearing and range....

The PK should not be turned on/running until all things are set: speed, AOB and a bearing/range is given to the TDC. Enabling it before that would give erroneous solutions. Are you sure that range is correct? If the TDC is set with a range that is closer than reality it would make the PK track with a higher bearingrate.