Fabio IZ7NLJ on Twitter: "3.5 and 7 MHz Dipole. Using coax traps and insulated wire this inverted dipole antenna by one single 50 ohm coaxcable. #hamr #hamradio https://t.co/s125pck202" / Twitter
Trapped dipole antennas | VK3ZPF Ham Radio Blog
40/80 Meter Band Fan Dipole antenna kit, including 150 Watt 1:1 BalUn - HF kits
40/80 Coil loaded dipole - Resource Detail - The DXZone.com
An Attic Coaxial-Cable Trap Dipole for 10, 15, 20, 30, 40, and 80 Meters
ON7EQ COAX TRAPS
Trap Dipole for 80 40 20 mt - Resource Detail - The DXZone.com
antenna construction - 3 Band (80-40-20 Meter) Fan Dipole Tuning Question - Amateur Radio Stack Exchange
Trap dipole
Coil-loaded 40/80 Meter Inverted V Dipole Antenna - Resource Detail - The DXZone.com