DX Engineering transmit-quality 450 Ohm Ladder Line is intended for antenna projects where the feedpoint impedance is close to 400 ohms. It is also ideally suited for use with DX Engineering Reversible Beverage System antennas. This high-quality ladder line, also known as window line, is constructed from 16-gauge conductors that are formed by 19 strands of 29-gauge copper-clad steel wire, which provides the strength to hold up for long runs between supports. Actual impedance is about 400 ohms with a nominal velocity factor of 91 percent. This ladder line is capable of handling well over 2.5 kW of RF power if used for a transmitting antenna system.