1. This should be an RF cable with polyethylene insulation, PVC sheath, and 120 ohm impedance.
2. V—Polyolefin insulation, Y—PVC sheath, with a characteristic impedance of 120 ohms. This refers to a 120 ohm polyolefin-insulated and PVC-sheathed cable, typically shielded. SEYVP-120 is commonly used as a trunk cable.
