Indoor antenna for 7 Mhz - IW5EDI Simone - Ham-Radio
Amazon.com: HF Short 40 Meter Mobile HF Stick Antenna 4ft : Electronics
Short 40 meter Vertical with Tuned Spiral Counterpoise. | Circuit Salad
Introducing the "All-Band" Doublet
a short dipole wire antenna for 40 meters band it is a folded dipole that do not make use of coils and can be us… | Dipole antenna, Ham radio antenna, Radio antenna
Short 40m dipole antenna, part 1 | ON3JT
Ham Radio Site - { 40m Minimum-Space }
20m & 40m trapped squid pole antenna | VK3ZPF Ham Radio Blog