Yaesu FC-40 – External ATU for Wire Antennas


Introducing the Yaesu FC-40 – External ATU for Wire Antennas, the perfect companion for your FT-897, FT-857, FT-DX10, FT-991A, and FT-981 series transceivers. This microprocessor-controlled antenna tuner unit takes advantage of the built-in control circuitry of your transceiver, allowing for seamless control and automatic operation.


The FC-40 is specifically designed to match a wide range of antennas on any amateur band (160 m to 6 m) with SWR within 2:1, typically in less than 10 seconds. With a transmitting power requirement as low as 4 – 60W, this ATU ensures efficient and reliable matching. Plus, it automatically stores your matching settings in memory for instant recall when selecting the same frequency range later.

Mounted near the antenna feed point, this waterproof ATU is built to withstand even the harshest environmental conditions, ensuring high reliability in any situation. With its compact size of 236 x 175 x 53 mm and weight of only 1.2 kg, it is incredibly portable and easy to install.

The Yaesu FC-40 supports a frequency range of 1.8 – 54 MHz when used with a 20+m end-fed wire. Additionally, with the YA-007 HF 2.5 m Mobile Whip Antenna, the range extends from 7 – 54 MHz. Its power handling capacity is an impressive 100W (max), ensuring optimal performance even at higher power levels.

Equipped with 100 memories, this ATU allows for versatile tuning options tailored to your specific needs. Powered by a 13.8V DC supplied by your transceiver, it eliminates the need for extra power sources, simplifying your setup.

Experience the convenience and efficiency of the Yaesu FC-40 – External ATU for Wire Antennas. Enhance your amateur band communication with quick and accurate antenna matching, ensuring clear and reliable signals every time. Get yours today and elevate your radio experience.


  • Frequency Range: 1.8 – 54 MHz (with 20+m end-fed wire)
  • 7 – 54 MHz with YA-007 HF 2.5 m Mobile Whip Antenna
  • Power Handling: 100W (max)
  • Tune-Up Power: 4 – 60W
  • Tune-Up Time: 10 sec max
  • Power: 13.8V DC (supplied from transceiver)
  • Size: 236 x 175 x 53 mm
  • Weight 1.2 kg

Additional information

Weight 1.4 kg