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… | Antenne, Radioamatori, Circuito elettronico
2m-70cm Antennas
Homemade J-Pole Antenna
440 MHz Amateur Radio J-Pole Antenna - KB9VBR Antennas
antenna theory - How do dual band J poles work? - Amateur Radio Stack Exchange
2 Meter Amateur Radio J-Pole Antenna - KB9VBR Antennas
A J-Pole for 2-meters and 70-cm - Resource Detail - The DXZone.com
Copper Cactus J pole 2 metter 70 Cm dualband - Resource Detail - The DXZone.com
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Pockrus J-pole] | Ham radio equipment, Ham radio, Ham radio kits
Dual Band 2M / 70CM Stainless Steel J-pole Antenna, Made in USA
The Stacked J-Pole - IW5EDI Simone - Ham-Radio
Dual-Band 2m/70cm PVC Antenna - Resource Detail - The DXZone.com
Arrow Antenna J Poles 2m 146 70cm 440 OSJ
K9JEB - Ham Radio and Electronics
Authentic N9TAX VHF/UHF Slim Jim J-Pole Dual Band 2m 70cm Antenna jpole | eBay
Homemade 2M/440 J-Pole for $35 – KK4ICE
2 meter & 70cm J pole Dual Band Collapsible Copper J-Pole Antenna FREE SHIPPING | eBay