Join Date: Aug 2006
Location: Arlington, VA
Thanked 12 Times in 10 Posts
Rep Power: 11
Sometimes VHF radios lose their programming sequences and need to be reset. The reset procedure for the Ocean 4500 is described on page 35 of the manual. This will return the radio to the factory settings (and will not change the MMSI or Buddy List).
You might give it a try if nothing else works.