MosaicHydro https://validator.w3.org/feed/docs/rss2.html Services The History and Importance of Hydrography Stop using DGPS! Sidescan Basics II Sidescan Basics I Multibeam Backscatter Grazing Angle Resources Privacy Policy Home Contact Clients Tilt adapter lever arm Swath width Survey total time Sidescan efficient line planner Seconds & time converters Patch test – yaw line spacing Patch test – tilted head line spacing Hits per grid cell Footprint size Calculators Dual head swath width Beamwidth after frequency change About