Diver communications Methods used by underwater divers to communicate
{"Image ImageDescription": "100504-N-9818V-453 SAN DIEGO (May 4, 2010) Master Chief Petty Officer of the Navy (MCPON) Rick West and divers from Southwest Regional Maintenance Center (SWRMC) conduct pre-dive checks before going on a familiarization dive under the USS Midway.    .(U.S. Navy photo by Mass Communication Specialist 1st Class Jennifer A. Villalovos/Released).", "Image XResolution": "72", "Image YResolution": "72", "Image ResolutionUnit": "Pixels/Inch", "Image Artist": "MC1 Jennifer A. Villalovos", "Image YCbCrPositioning": "Centered"}