Mounts to maximum 2" diameter pipe. 300 ohm output / 75 ohm transformer included Active Elements: 2 Boom Length: 10" Turning Radius: 41" Maximum Width: 67" Height: 10.25 Box size: 42 x 6½ x 6½ (Formerly model PR-6010) Compatible with HD Radio This FM antenna is great for Short Range (up to 30 miles) Omni-directional FM coverage Additional Model #'s 221-HD-6010 221-HD6010 HD-6010 HD6010 UPC: 615798398125