I just got my BSC 621 from Sadoun.
No instructions included.
but I did get a cool Sadoun pen. 
Anyways it came with a di-electric plate to receive circular polarized signals. What are circular polarized signals? Should I install it as instructed?



Anyways it came with a di-electric plate to receive circular polarized signals. What are circular polarized signals? Should I install it as instructed?
