End Fed Half Wave (EFHW) Antenna Upgrade Part 2 - The Loading Coil
Coil-Shortened Dipole Antenna Calculator
Dan Zimmerman, N3OX - Amateur Radio
Adding a loading coil to a 40m Vertical for 80m operation | M0MCX - Amateur Radio - Ham Radio
Loaded Quarter Wave Antenna Inductance Calculator – M0UKD – Amateur Radio Blog
Antenna Design Calculators
Junk Box Loading Coil – WB3GCK QRP Amateur Radio
Loaded Quarter Wave Antenna Inductance Calculator – M0UKD – Amateur Radio Blog
AM Transmitting Antennas
80m mid-loaded vertical
Antenna Loading with Coils - YouTube
Loaded Quarter Wave Antenna Inductance Calculator – M0UKD – Amateur Radio Blog
Short tuned dipole – PA1EJO
DIY Shortened Vertical Antenna - 4X5MG
Loading Coils
How to Shorten a Vertical Antenna - YouTube
A loading coil for 80m – Dhakajack
Coil-Shortened Vertical Antenna Calculator - The DXZone.com
Small Space HF Antenna by Harry Lythall (SM0VPO)
160m coils - Antennas - SOTA Reflector
5/8 Wave vertical antennas for HF – Ernest Neijenhuis PA3HCM Homepage
antenna theory - Parameters needed to calculate inductor value to achieve proper phase delay? - Amateur Radio Stack Exchange
Matching a 5/8λ vertical
VE7SL - Steve - Amateur Radio Blog: A New 630m Loading Coil & Variometer
80m with your 66ft end fed half wave antenna?... How to easily make a 110µH loading coil. - YouTube
