Features 1、Reliable Works: Comes with a wide frequency range of 5‑35MHz, including 7MHz, 14MHz, 21MHz, 28MHz as well as amateur band. 2、Simple Setting: Highly portable, the Balun module can be set up as an inverted V, horizontal, tilted or vertical radiator. 3、No More Tuning: Designed for working without tuner and to optimize the driving elements for any part of the frequency band. 4、The Using Tips: Use a high voltage capacitor with a specific radiator length on the transformer primary to ensure safe work. 5、Easy to Install: Light in weight and compact in size, the convenient installation can be quickly completed within minutes. Specification Item Type: Balun PCB Material: PC Colour: Green Rated Continuous Power: 50W PET: 100W Frequency: 5-35MHz, including 7MHz, 14MHz, 21MHz, 28MHz, amateur band. Interface: BNC female head. Erection Method: At least 1 meter away from the ground, just connect a 20.2 meter vibrator. Package List 1 x Balun PCB