The Yaesu FC-90 is an automatic antenna tuner of small power rating, designed primarily for portable use with the Yaesu FTX-1 Field transceiver (and possibly similar setups). Its flexibility and compactness make it an excellent choice for amateur radio field operations.

Technical Specifications

• Operating frequency range: 1.8 – 54 MHz (HF + 50 MHz bands)

• Maximum input power: 10 W — suitable for portable/field deployments

• Use category: External automatic tuner for low-power use and portable antennas

• Tuning type: Automatic antenna matching — no manual tuning required for each band

• Application: Ideal for portable field stations, backpacks, SOTA/POTA, or light installations where space and power are limited

With the FC-90, the amateur radio operator gains the ability to deploy different antennas across multiple bands without heavy setup, while maintaining portability and ease of use.