RG59 is a 75-ohm coaxial cable commonly used for low-frequency video and RF signal connections, especially in CCTV, broadcast, and baseband video applications.
Impedance: 75 Ohms
Conductor: Solid bare copper or copper-clad steel (varies by specific model)
Dielectric: Foam or solid polyethylene (PE)
Shielding: Single or dual (usually braid over foil)
Jacket Material: PVC (standard), available in Plenum-rated (CMP), Riser-rated (CMR), or Outdoor-rated variants
Outer Diameter: ~0.24 inches (6.1 mm), depending on the construction
Frequency Range: Generally up to ~1 GHz (for short to medium-length runs)
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