RG213U Coaxial cable 50 Ohm MIL-C-17F (RG213U) 

Price per meter
RG 213 U, 50 Ohm Coaxial Cable, BLACK, MIL-C-17F Standard this is often referred to as the RG213U
Long description: Inner Conductor: Plain Copper
Outer Conductor: Plain Copper
Dielectric: Low Density Polyethylene
Sheat: Non Contaminating Polyvinyl-chloride Sheat, Color Black
Attenuation per 100 m
50 MHz / 4.9
100 MHz / 7.4
200 MHz / 10.8
400 MHz / 16
500 MHz / 18.5
600 MHz / 20.6
860 MHz / 25.6
1000 MHz / 28