Session III GPS DEPTH-FINDER UNITS. F GPS positions are not error free –User and/or Satellite clock bias. –Satellite signal can be blocked. –Atmospheric. - ppt download
Trimble GPS settings
Current state of positioning performance using only GPS (HDOP, VDOP,... | Download Scientific Diagram
GPS HDOP Range - APM Planner 2.0 - ArduPilot Discourse