20/40 Meter Short Coax Trap Dipole Antenna - The DXZone.com
HF Multiband Trap Dipole » Electronics Notes
Amateur Radio - Multi-band Trap Dipole Antenna
Antenne a dipolo multibanda | DigiKey
Antenna Traps—A Way to Cope With Limited Space
To Trap or Not to Trap
Antenna traps pair for 80m (3.65MHz) for 160/80m trap dipole. Made in Dorset UK. | eBay
Modeling Trap Antennas
Homebrewing Traps - IW5EDI Simone - Ham-Radio
The Coax trap program computes design parameters for the construction of coaxial traps for HF usage. Typically these are constructed from PVC tube and RG58/59 coax