ATU-130 150W PEP Automatic HF 1.8 – 54 MHz Antenna Tuner


This fully assembled 150W PEP automatic antenna tuner is intended for use as a separate device that performs the function of matching the output impedance of your radio or power amplifier with antenna feeders. The prototype of this tuner was designed by David Fainitski N7DDC.


Made of fine quality material, practical, easy to operate and use, and has a long service life. The antenna tuner is automatically tuned without any control wires, suitable for most radio stations.


Easy integration means plug-and-play operation; installation could not be simpler. The ATU-130 tuner goes anywhere with an HF radio… desktop, portable, parks, islands, or tall summits.

The ATU-130 contains a set of 7 switched inductances with an uneven pitch, from 0.05 μH to 4.5 μH, and a set of 7 capacitors with uneven pitch, from 10 pF to 1 nF. This allows the ATU to work effectively in a wide frequency band, overlapping radio amateur HF ranges from 1.8 to 54 MHz.

  • Display: 0.96-inch OLED
  • HF32 / 10A and HF33 / 5A Relays
  • 6 kV Ceramic Capacitors
  • Frequencies: 1.8 – 54 MHz
  • Power Supply Range: 10 – 15 VDC
  • Max. Tuning Power: 30 Watts
  • Min. Tuning Power: 1 Watt
  • Max. Working Power: 150 Watts
  • Min. Measured Power: 0.1 Watts
  • Power Measurement Step: 1 Watt
  • Power Measurement Accuracy: 10%
  • Max. Installed Inductance: 8.5 μH
  • Min. Inductance Installation Step: 0.1 μH
  • Max. Installed Capacity: 1870 pF
  • Min. Capacitance Installation Step: 10 pF
  • Tuning Impedance Range: 5Ω~1.2kΩ
  • TX/ANT Connectors: SO239
  • Size: 150 x 88 x 38 mm
  • Microchip PIC18F2520-I/SP, 8-bit PIC Microcontroller

Additional information

Weight0.5 kg