PA7JWC 🇳🇱 - 5Q7DX 🇩🇰 Jan-Willem sur Twitter : "Experimenting with stockcorner JC-4s Automatic Antenna Tuner. Want to use this for the low bands for the trip to Denmark next week. #hamradio #
![PA7JWC 🇳🇱 - 5Q7DX 🇩🇰 Jan-Willem on Twitter: "Experimenting with stockcorner JC-4s Automatic Antenna Tuner. Want to use this for the low bands for the trip to Denmark next week. #hamradio #hamr PA7JWC 🇳🇱 - 5Q7DX 🇩🇰 Jan-Willem on Twitter: "Experimenting with stockcorner JC-4s Automatic Antenna Tuner. Want to use this for the low bands for the trip to Denmark next week. #hamradio #hamr](https://pbs.twimg.com/media/E-cgmUNWUAMTrj1.jpg)
PA7JWC 🇳🇱 - 5Q7DX 🇩🇰 Jan-Willem on Twitter: "Experimenting with stockcorner JC-4s Automatic Antenna Tuner. Want to use this for the low bands for the trip to Denmark next week. #hamradio #hamr
![The stockcorner.nl JC-4s semi-automatic antenna tuner (Part 1: Unboxing and configuration) - YouTube The stockcorner.nl JC-4s semi-automatic antenna tuner (Part 1: Unboxing and configuration) - YouTube](https://i.ytimg.com/vi/xJI2GXW_jZo/hqdefault.jpg)