SailNet Community - View Single Post - Radome Mast Mounts: Should They Pivot?
View Single Post
post #4 of Old 01-09-2008
Larus Marinus
Idiens's Avatar
Join Date: Jan 2007
Location: Brussels
Posts: 1,756
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 9
Although the horizontal beam width (50% power) of a typical small marine radar is in the single digit degrees (say 3 to 4), the vertical beam is nearer 45 degrees. At 30 degrees heel, a lot of energy goes into the sea and sky, on a fixed installation, but this is always the case, even upright. The near sea clutter is rejected and the sky offers little return, so the remaining reflected signal still comes from targets, rain and longer range sea clutter.

Idiens is offline  
Quote Share with Facebook
For the best viewing experience please update your browser to Google Chrome