GPS FX312 Maps and Routing © 2005 : Hans Welleman

Technical reference of the MLR FX312 GPS receiver.


The MLR FX312 is a very popular GPS receiver and frequently used on board of sailing yachts all over the world. The technical data of this device however is very difficult to obtain. Since the MLR FX312 is no longer in production the manuals and technical referencehave almost completely vanished from the internet. The english version of the original manual and technical reference about input and outputof data can be found here:

  • Manual (UK)
  • Handleiding (NL)
  • Quick Reference (UK) (pdf)
  • Technical Data Input and Output Reference (UK) (pdf)
  • NASA NAVTEX programming sentences (UK) (pdf)