This antenna does not need a 75 Ohm transformer as quads do at lower frequencies. Any length of a good quality RG58X will suffice as the primary feedline. Connect to station with any length of good 50 ohm coax and PL-259 connectors and one barrel connector to couple the feed lines. This antenna can be…

via 2 meter Cubical Quad Antenna — IW5EDI Simone – Ham-Radio