4-4 
 
 
4.4  Shadow-sector countermeasure 
 
4.4.1    Fore and aft directions   
Setup without obstacle down to -5°. 
 
 
 
 
 
 
 
 
 
 
 
 
 
4.4.2    Port and starboard directions 
Setup without obstacle down to -15°. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
4.4.3    Within radius 1m from EME 
 
Avoid obstacles more than 2 degrees within 1m 
in radius from EME. 
 
 
 
 
 
 
 
 
 
 
Fig.4.4.3  
Minimum Requirement for EME Installation 
(based on
 the GMDSS Performance Standards) 
 
 
Shadow-sector is generated when   
some obstacle is exist in slashed part. 
-5°
Shadow-sector is generated when   
some obstacle is existed in slash part. 
-15°