Features 1、ANTENNA TUNER: Miniature shortwave automatic antenna tuner, without any control line operation, suitable for most radio stations. 2、EXCELLENT PARTS: Adopts C channel 1000V high voltage SMD capacitor, advanced PIC chip and UHF connector to ensure stable performance. 3、GOOD PERFORMANCE: Higher level capacitance, larger magnetic ring, thicker wire diameter, greater power bearing capacity, total inductance 12.4uh. 4、ALUMINUM ALLOY: The shell of the antenna tuner is made of aluminum alloy, with light weight, fast heat dissipation and corrosion resistance. 5、COMPACT SIZE: The automatic antenna tuner has compact structure, convenient connection, portable design is suitable for home or vehicle use. Specification Item Type: Automatic Antenna Tuner Model: ATU-130 Material: Aluminum Alloy Power Supply Voltage Range: 10-15VDC (+in the center) Maximum Current Consumption: 500mA Maximum Working Power: 150W Starting Tuning Minimum Power: 5W Minimum Measurable Power: 0.1W Measurement Accuracy Up to 10W Power: 0.1W Measurement Accuracy Greater Than 10W Power: 1W Maximum Installed Inductance: 8.53μH Minimum Installation Inductancee: 0.05μH Micro Automatic Antenna Tuner Features: Has the function of power meter standing wave meter (according to BYPASS, straight through mode, one horizontal line in the middle of the screen, the test value is approximate, and the accuracy is lower than that of professional high accuracy meter, for reference). PIC18F2520, MCU (faster). Short wave machine automatic antenna tuner The third edition adopts the design of 4 large magnetic ring inductors, which generates less heat than the original edition. HF32, 10A, HF33, 5A relays are used. High voltage porcelain chip capacitor is adopted. The maximum measurable value is SSB 275w. It is recommended that the SSB should not exceed 200w for a long time. For other continuous modes, the power shall not be greater than 100W (FT8, CW, FM, when the standing wave deviation is large before adjustment, the power shall be reduced as appropriate, and it is recommended to use 10min interval for 5min). Size: Approx. 38 x 88 x 155mm / 1.5 x 3.5 x 6.1in (excluding projections) Weight: Approx. 0.5Kg / 17.6oz (portable, suitable for vehicle, indoor and outdoor fixation, etc.) 1.8-50MHz (specifically affected by antenna length and standing wave deviation). Tuning Impedance Range: 5Ω-1.2KΩ Application: Can be used for long line (recommended), GP (recommended), inverted V, bipolar, end fed and other antennas to adjust standing wave and match short wave machine impedance. Package List 1 x Antenna Tuner 1 x Cable 1 x Accessory