Most Ritchie Compasses have built-in compensators that correct at the cardinal points.
Follow this link for general compensation instructions.
We also manufacture some compasses with intercardinal correctors (on the 45s):
Most Ritchie Compasses have built-in compensators that correct at the cardinal points.
Follow this link for general compensation instructions.
We also manufacture some compasses with intercardinal correctors (on the 45s):