Maximum Power Output:Harness 200W maximum power output for continuous wave transmissions, ensuring robust and reliable signal transmission. Reliable Relay System:Experience seamless switching with HF32 (10A) and HF33 (5A) relays, providing a robust and efficient signal transmission. Atu 130 Max Antenna Tuner|Atu 130 Max|High-Performance Tuning:Achieve precise automatic antenna tuning with the PIC18F2520 microcontroller, ensuring optimal reception for your shortwave radio. Enhanced Capacitor:Utilize a 6KV high-voltage ceramic capacitor for stable operation and improved durability in your tuner box. Wide Frequency Range:Explore a vast frequency range from 1.8-50MHz, ensuring compatibility with diverse antennas and optimal reception quality. Colour:Black Material:aluminum alloy Package Contents: 1 x Automatic Shortwave HF Antenna Tuner(Due to different product batches, the patterns and words on the product may be different, which not affect the use) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.