DIY Shortened Vertical Antenna - 4X5MG
Make a 40 metre loaded dipole - Amateur radio tips and how-to guides
dipole - Estimating the efficiency of a shortened (loaded) antenna - Amateur Radio Stack Exchange
Coil-Shortened Dipole Antenna Calculator - Resource Detail - The DXZone.com
Coil-Shortened Dipole Antenna Calculator
The Amazing 20m Coil-Shortened "Shower Rod Dipole".
Building High Power, High Q, Loading Coils
Build A Shortened 40 Meter Vertical For POTA / SOTA Activations - Mike's Tech Blog WB8ERJ
How to Shorten a Vertical Antenna - YouTube
Coil-Shortened Vertical Antenna Calculator
80m mid-loaded vertical
Mobile antennas, short verticals, loading coil loss,and loading coil current
Loaded Quarter Wave Antenna Inductance Calculator – M0UKD – Amateur Radio Blog
Small Space HF Antenna by Harry Lythall (SM0VPO)
DIY Shortened Vertical Antenna - 4X5MG
Basic Antenna Design
Adding a loading coil to a 40m Vertical for 80m operation | M0MCX - Amateur Radio - Ham Radio
Antenna Loading Coil Calculation - Resource Detail - The DXZone.com
80m mid-loaded dipole
Loaded Quarter Wave Antenna Inductance Calculator – M0UKD – Amateur Radio Blog
How to DIY a Shortened 20 thru 40 Meter Vertical for POTA
40m center loaded vertical antenna – 5 metres long | Get out of the Radio Shack and Live Life
DIY Shortened Vertical Antenna - 4X5MG
Dan Zimmerman, N3OX - Amateur Radio
Effectively Reducing Monopole Antenna Length | DigiKey
