The Diamond 50 MHz 2-element phased drive beam antenna measures 800 mm x 3000 mm x 85 mm and weighs just 1.7 kg. Operating from 50 to 53 MHz with a centre frequency of 51 MHz, it delivers 6.3 dBi gain and handles up to 400 W (SSB). Impedance is 50 ohms with a VSWR of <1.5:1 between 50 and 52 MHz without adjustment.

With a front-to-back ratio of >15 dB and a half-power beamwidth of <70°, this antenna is engineered for focused performance. Wind surface area is 0.14 m², rated for wind speeds up to 40 m/s. The turning radius is approximately 1600 mm, and it suits mast diameters from 25 mm to 56 mm.