Transmission and Multiplexing (TM) - Digitale Radio Relay Systems (DRRS) - Part 1: Antennas for point-to-point (P-P) radio links in the 1 GHz to 3 GHz bands; English version EN 300631-1 V 1.1.1:1997-11— 18 стр.
Equipment Engineering (EE); environmental conditions and environmental tests for telecommunications equipment; part 1-4: classification of environmental conditions; stationary use at non-weatherprotected locations; english version ETS 300019-1-4:1992
Harmonized system of quality assessment for electronic components. Sectional specification: radio frequency coaxial connectors. Series EIA Flange— 42 стр.