DIY Automatic Tuning Antenna Kit with OLED Screen for Radio Communication

Discover our DIY Antenna Tuner (ATU) kit, an exciting project for any amateur radio operator! This ATU-100 tuner is designed for easy installation, allowing you to enjoy the satisfaction of building it yourself while obtaining a professional, stable, and high-performing device. It features an **automatic tuning** system thanks to the N7DDC-developed ATU (Automatic Antenna Tuner) module, incorporating an OLED screen for clear visualization of all data. The build quality is exceptional, utilizing **high-quality capacitors**: brand-name chip capacitors, C-channel capacitors, 1000V high-voltage chip capacitors, and an imported PIC chip for precise control. This portable tuner is designed for **easy transport**, allowing you to take it and use it wherever you go. It operates efficiently over a **wide HF amateur radio frequency band**, from 1.8 MHz to 50 MHz. Its maximum current consumption is 400mA. It features 7 inductors and 7 capacitors for optimal matching.

**Detailed Technical Specifications:**

* **Item Type:** DIY Antenna Tuner Kit

* **Main Material:** PCB

* **Maximum Current Consumption:** 400mA

* **Number of Inductors Installed:** 7

* **Number of Capacitors Installed:** 7

* **Installed Inductor Range:** 0.05 µH (minimum) to 8.53 µH (maximum)

* **Installed Capacitor Range:** 10 pF (minimum) to 1869 pF (maximum)

* **Power Measurement Accuracy:** 10%

* **No measurement (power ≤ 10W):** 0.1 watt

* **No measurement (power > 10W):** 1 watt

**Use scenario:**

This device is intended for use as a component in amateur radio equipment, integrated into an amplifier or transceiver, or as a separate unit. It performs the crucial function of impedance matching between the output of a power amplifier (PA) and the antenna feed line. Its design with a 2x5 relay group allows it, in its maximum configuration, to effectively cover the wide amateur HF band. **Kit Contents:** Your complete kit includes everything needed for assembly: * 1 x PCB Board * 1 x Connection Cable * 1 x Integrated Circuit (IC) * 2 x Connectors * 15 x Relays * 6 x Capacitors * 6 x Porcelain Rings * 1 x Coil * 1 x Transistor * 1 x Diode * 2 x Connectors * 2 x Copper Wires * 1 x User Manual

Enjoy the DIY experience and upgrade your radio station with this high-performance automatic antenna tuner!