Excellent signals are possible from properly installed Marine Mobile installations due to the conductivity of water.

• Casting Off With Ham Radio  QST April 1989, pp. 53-55
  Combining boating and ham radio can be both useful and fun. Here is how one ham gets his kicks.
• Mobile Marine Under Sail  QST March 1976, pp.18-21
  Own a boat, or thinking of getting one? Don't forget to take Amateur Radio along when you hit the water!
• Marine Mobile Revisited  QST December 1976, pp. 51-53
  Anchor, plug the rig in and work the world! It’s easy and fun. Here are more maritime hints and kinks from an extended Caribbean cruise.

• Amateur Operation on the High Seas
  Good amateur practice and strict rule compliance have always characterized the operations of the vast majority of US amateurs operating within the US and in international waters.
• The Maritime Mobile Service Network
  "Serving Maritime Mobiles And Deployed Military Everywhere", 14.300 / 14.313 mhz. - 7 Days A Week, Since 1968