Specs: Workman 8X-3-PL-PL
3ft RG8X with PL-259 on each end. 
 
Gray Ultra-Violet Resistant PVC Jacket, 0.242" OD 
Premium 95% Bare Copper Braid 
Foam Polyethylene Dielectric Insulator
Stranded Bare Copper Center Conductor
Premium Grade Molded PL-259 Connectors on each end 
Power Rating: 350W @ 30MHz, 280W @ 50MHz, 150W @ 150MHz, 80W @ 450MHz. 
Attenuation per 100Ft of 2.0dB at 30MHz, 2.3dB @ 50MHz, 4.7dB @ 150MHz, 8.6dB @ 450MHz. 
50 Ohm Nominal Impedance
Velocity of Propagation 80% 
-40°c to +80°c