Radiating leaky coaxial cable is favored by the market because of its wide frequency band

wide coverage and long transmission distance.It is widely used in high-speed railway and subway tunnel.In this paper

the longitudinal attenuation

coupling loss and system loss of 26 Radiating leaky coaxial cable with a specification of 42 tested by our laboratory are analyzed.Through studying the performance characteristics of leaky cables with different designs

and comparing with the requirements of current standard YD/T 2491-2013《communication cable-Radiating leaky coaxial cable with foamed polyethylene dielectric and longitudinal wrapped copper outer conductor》

standardization Suggestions are put forward.