The J-275D-K 51/60 UHF Yagi antenna for channels 51 to 60  consists of a wide-band, diamond loop driver, two vertically spaced reflectors and 13 tuned directors. The diamond driver is an exclusive TACO design providing a matched 75 Ohm impedance throughout the UHF range. Dual reflectors increase both horizontal and vertical directivity of the driver and provide front-to-back ratios of 20 dB or better. Directors are tuned for specified channels to provide gain of 14 dB over a reference dipole.