The 150-5 Yagi is computer optimized for 4 mHz. The gain is flat within 0.1 dB. The antenna is to be used as a gain reference and test antenna at 150 mHz.
It features rugged, grounded construction and rear mounting so any polarity can be selected and set quickly with no interaction from the mounting structure.
If need be, it can handle 1500W of continuous power.