Feature: 1. The antenna tunet adopts PIC16F1938 MCU and 5 groups of LC combinations, with HF4100 and 3A relay. 2. The product is designed with 6 T68‑2 magnetic ring inductors, and heat generation is smaller than the original version. 3. Using 1KV, 1206 four groups of high‑voltage ceramic capacitors in series and parallel 4. The tuning impedance range of the antenna tuner is 5Ω～1.0KΩ and frequency is 1.9-54MHz. 5. High quality material can make sure the durability and stability of the product. Specification: Item Type: Antenna TunerMaterial: Aluminum alloy Maximum SSB≥100w, it is recommended to use it for a long time not larger than (SSB≥80w, FT8, CW, FM≥50W). Frequency: 1.9---54MHz (Specifically affected by the length of the antenna and the degree of deviation of the standing wave). Tuning Impedance Range: 5Ω～1.0KΩ . Package List: 1 x Antenna Tuner1 x Connection Line1 x Plug Note: Be sure to confirm that the cable is connected according to the mark, otherwise the product will be burnt out.