![M0UKD – Amateur Radio Blog – Home of John, M0UKD. Amateur Radio information, pictures, homebrew circuits and projects. M0UKD – Amateur Radio Blog – Home of John, M0UKD. Amateur Radio information, pictures, homebrew circuits and projects.](https://m0ukd.com/static/homebrew/70MHz_4m_Quarter_Wave_Ground_Plane/70MHz_Quarter_Wave_Antenna_Construction_6.jpg)
M0UKD – Amateur Radio Blog – Home of John, M0UKD. Amateur Radio information, pictures, homebrew circuits and projects.
![F1MIJ PASCAL on X: "1/4 Wave Ground Plane Antenna Calculator by M0UKD https://t.co/f6qjOdK40d https://t.co/0AYRAWQ0b9" / X F1MIJ PASCAL on X: "1/4 Wave Ground Plane Antenna Calculator by M0UKD https://t.co/f6qjOdK40d https://t.co/0AYRAWQ0b9" / X](https://pbs.twimg.com/media/DkUlmveX0AAvOta.jpg:large)
F1MIJ PASCAL on X: "1/4 Wave Ground Plane Antenna Calculator by M0UKD https://t.co/f6qjOdK40d https://t.co/0AYRAWQ0b9" / X
![Loaded Quarter Wave Antenna Inductance Calculator – M0UKD – Amateur Radio Blog | Amateur radio, Dipole antenna, Qrp Loaded Quarter Wave Antenna Inductance Calculator – M0UKD – Amateur Radio Blog | Amateur radio, Dipole antenna, Qrp](https://i.pinimg.com/736x/bd/8c/c2/bd8cc2b9d74fc4864ae81f94bc179f95.jpg)
Loaded Quarter Wave Antenna Inductance Calculator – M0UKD – Amateur Radio Blog | Amateur radio, Dipole antenna, Qrp
Alps DX 🇫🇷 on X: "For those who would like to take advantage of the sunny days to build a 1/4 wave GP antenna, here's a handy calculator, by M0UKD : https://t.co/HcEcpd1KTQ
![1:1 Voltage Balun for HF wire dipoles – M0UKD – Amateur Radio Blog | Ham radio antenna, Ham radio, Amateur radio 1:1 Voltage Balun for HF wire dipoles – M0UKD – Amateur Radio Blog | Ham radio antenna, Ham radio, Amateur radio](https://i.pinimg.com/736x/6b/cd/e0/6bcde0df355021b0c01f315abc68fd57.jpg)
1:1 Voltage Balun for HF wire dipoles – M0UKD – Amateur Radio Blog | Ham radio antenna, Ham radio, Amateur radio
![M0UKD – Amateur Radio Blog – Home of John, M0UKD. Amateur Radio information, pictures, homebrew circuits and projects. M0UKD – Amateur Radio Blog – Home of John, M0UKD. Amateur Radio information, pictures, homebrew circuits and projects.](https://m0ukd.com/wp-content/uploads/2016/03/2016_23cm-1024x734.jpg)
M0UKD – Amateur Radio Blog – Home of John, M0UKD. Amateur Radio information, pictures, homebrew circuits and projects.
![M0UKD – Amateur Radio Blog – Home of John, M0UKD. Amateur Radio information, pictures, homebrew circuits and projects. M0UKD – Amateur Radio Blog – Home of John, M0UKD. Amateur Radio information, pictures, homebrew circuits and projects.](https://m0ukd.com/static/images/header.png)