![I've constructed a 144/440 Dual band Open Stub J-Pole Antenna. I saw the plans for this on the internet (link to plan… | Ham radio antenna, Radio antenna, Ham radio I've constructed a 144/440 Dual band Open Stub J-Pole Antenna. I saw the plans for this on the internet (link to plan… | Ham radio antenna, Radio antenna, Ham radio](https://i.pinimg.com/originals/00/05/77/000577c215104e171856c75f1d8d9ec7.jpg)
I've constructed a 144/440 Dual band Open Stub J-Pole Antenna. I saw the plans for this on the internet (link to plan… | Ham radio antenna, Radio antenna, Ham radio
![José Jesus (PS8ET) 🇧🇷🇺🇦 on X: "Antenna J-Pole 145/440 (Desing KN9B) First test on satelitte AO91 I spoke with: PT7MGS, PU1UDS, PY1LT, PS8BR, FY5HB and 9Z4DZ Excellent to carry in the backpack ... José Jesus (PS8ET) 🇧🇷🇺🇦 on X: "Antenna J-Pole 145/440 (Desing KN9B) First test on satelitte AO91 I spoke with: PT7MGS, PU1UDS, PY1LT, PS8BR, FY5HB and 9Z4DZ Excellent to carry in the backpack ...](https://pbs.twimg.com/media/DXK1lHnX0AEf09m.jpg)
José Jesus (PS8ET) 🇧🇷🇺🇦 on X: "Antenna J-Pole 145/440 (Desing KN9B) First test on satelitte AO91 I spoke with: PT7MGS, PU1UDS, PY1LT, PS8BR, FY5HB and 9Z4DZ Excellent to carry in the backpack ...
![Free STL file J POLE antenna 868MHz for crossfire and other telemetry system.・3D printable object to download・Cults Free STL file J POLE antenna 868MHz for crossfire and other telemetry system.・3D printable object to download・Cults](https://files.cults3d.com/uploaders/17101372/illustration-file/e3ddd767-ceb1-448e-b655-711ca5882cb2/IMG_20210602_211816.jpg)