Wx + Turb benefit
Can any of the radar gurus help with this one? I've tried a search but have not found an answer that relates specifically to this question:
Most modern wx radars have 'wx' and 'wx + turb' settings, with the 'turb' function only active at ranges below 40nms. What is the benefit of using the 'wx' function? Does the turb function attenuate the least powerful returns? Does it use less power? Is there a reason to not use 'wx + turb' all the time? If not, why was the 'wx' function provided?
I believe that in older radars there was some attenuation with turb selected, and observation using the 767 radar does show a small reduction in the area of green returns when going from 'wx' to 'wx + turb'
Thanks for any answers or references.