A.2.5~4.8m B.1.8~3m C.1.2--1.8m D.1.5~3.0m
A.23~27dB B.18~22dB C.15~18dB D.12~15dB
A.4.0/2.5GHz B.1.6/1.5GHz C.14/12GHz D.30/20GHz