Slim Jim and J Pole calculator – M0UKD – Amateur Radio Blog
AIR - RADIORAMA: ANTENNA J-POLE per i 144 MHz
J-Pole Antenna Plan and Calculator - Resource Detail - The DXZone.com
I've constructed a 144/440 Dual band Open Stub J-Pole Antenna. I saw the plans for this on the internet (link to plans… | Ham radio antenna, Ham radio, Antenna
Build and Review – Dual Band J-Pole 144/440Mhz – New River Valley Amateur Radio Club – N4NRV
V/UHF Dual Band J-Pole Antenna
Details About 2 Meter VHF Slim Jim Amateur Ham Radio J-pole Base Antenna 144-148mhz for sale online | eBay