Compass Services

The Compass Adjuster services all brands of compasses on site in Portland, Oregon
and will travel at your expense, to your vessel at any other port.

 For information about Ritchie Compasses, see their FAQ page.  

You may also call me or email any time to ask questions.  

Visit a Compass Manufacturer

Ritchie Mfg Website
Plastimo Mfg Website
Danforth Mfg website
Aqua Meter Mfg Website
Dirigo Mfg Website
Suunto Mfg Website

Learn About


The three main causes of Compass Error are:

  • Variation 
  • Lubber Line Error
  • Deviation

Every navigator should memorize the following list in order from top to bottom:


  • True Heading
  • Variation Value
  • Magnetic Heading
  • Devation Value
  • Compass Heading

 Read the full deviation article here