dualband

Dualband-Beam 12/17 m - The beam has only one feedpoint with 50 Ohm and has an open-sleeve element for 12 m by DK7ZB

Dual Band 40m/17m dipole - A center feed dual band dipole for 40 and 17 meters by W5DXP

Dual Band Vertical On Autopilot - A good 20 & 40 meter dual band vertical using a novel tuning method that provides automatic band switching.

Dual Band vertical antenna for 20/40 - A 20 and 40 meter vertical on Autopilot by K6MHE PDF File

Dualband yagi for 50 70 Mhz - PA5DD version of the dual band yagi antenna for 50 and 70 Mhz

G0KSC 70 Mhz and 50 Mhz Dualband Yagi - Direct feed, no matching required dual band Yagi

8el 50Mhz / 70Mhz Dualband Yagi - Only just over 6 foot long, a compact 8 element dualband Yagi for 6 and 4 meters band. No traps or coils, no matching required. Simple to build by G0KSC

VHF/UHF Wideband Portable Dipole - A portable dualband dipole robust and compact antenna usable for horizontal and vertical polarisation by ON6MU

Dualband EH Antenna - A detailed project of a dual band EH antenna by F5IXU in french

Copper Cactus J pole 2 metter 70 Cm dualband - Homebrew j-pole 2mt 70 cm antenna project. Make it cheap.

Dualband J-Pole antenna - A VHF / UHF J-pole vertical antenna de ON6MU

Dualband 17m/20m Moxon - A moxon rectangle for 17 and 20 meters band by N3OX

144/430 dualband J-Pole antenna - A simple and cheap dualband j-pole antenna for 144 and 430 MHz

Copper Cactus Dual-Band - Copper Cactus Dual-Band Super J-Pole Antenna Project 2 meter 70 Cm Home brew antenna

Ladder Feeder Dual Band Antenna - 450Ω Ladder Feeder Dual Band Antenna

70cms and 2m Dual Band Aerial - A prototype antenna built using a single approx. 2.3 meter length of 4mm stainless steel wire

VHF UHF Dualband vertical antenna - Homebrew a dual band vertical antenna