Double Lobe System Rawin

N. Kodaira
1951 Papers in Meteorology and Geophysics  
A rawin of double lobe system has been designed so as to improve the observational accuracy. The minimum elevation angle is about 18 degrees, which may be lowered by a certain value, preventing the incidence of the reflected wave with a metal net. The accuracy above this limit is about 0.4 degree.
doi:10.2467/mripapers1950.2.2_205 fatcat:7dfpy4tm7jbupgly3mukzg4jou