Aluminum Alloy Shortwave Antenna Tuner - ATU120 Universal Radio Tuning System - 1.9 MHz to 54 MHz Frequency Range - 100W Power Capacity - 5 Ohm to 1.0k Ohm Impedance Matching

Item Type: Antenna TunerMaterial: Aluminum alloySize: Approx. 88 x 155 x 38mm / 3.5 x 6.1 x 1.5in(excluding protrusions)Maximal: SSB120w, it is recommended to use it for a long time not larger than(SSB, 100w, FT8, CW, FM60W)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-1.0KΩPackage List：1 x Antenna Tuner1 x Connection Line1 x PlugNote:Be sure to confirm that the cable is connected according to the mark, otherwise the product will be burnt out

• Microcontroller and LC Network: Features a PIC16F1938 MCU and 7 groups of LC combinations to manage signal tuning across the specified frequency spectrum.
• Relay and Signal Stability: Uses HF4100 3A relays with a frequency range of 1.9 MHz to 54 MHz to facilitate stable signal transmission for radio communication.
• Capacitor Array: Includes 7 groups of 3KV high voltage ceramic capacitors and 1206 series parallel groups of 1KV capacitors to handle electrical demands.
• Thermal Management: Built with 8 T68 2 magnetic ring inductors designed for low heat generation and consistent operational performance during tuning cycles.
• Housing and Impedance: Provides an impedance tuning range of 5 Ohm to 1.0k Ohm within an aluminum alloy housing for reliable contact performance and simple operation.