BA4TVY The resonance frequency was at 21 MHz (I actually intended to achieve 14 MHz, but mistakenly recorded it as 15 meters, hence the error).I made a few FT8 QSOs with Japanese and Korean stations, and the results were good. However, the equipment was getting quite hot, so I'm not sure if it's due to frequent transmissions.Once all the necessary components for a "V-shaped" antenna were present, I disassembled it.I plan to learn more and build a 14MHz two-element Yagi antenna.