ETSI EN 300 631-1-1997 传输和复用(TM).数字无线电中继系统(DRRS).在1 GHz到3 GHz波段的点对点(P-P)无线电线路用天线(版本1.1.1)
Transmission and Multiplexing (TM); Digital Radio Relay Systems (DRRS); Part 1: Antennas for Point-to-Point (P-P) Radio Links in the 1 GHz to 3 GHz Band (V1.1.1)