This article describes the construction of a 20 meter J-Pole ham radio antenna. K6AER used a fifty-foot TV push up mast, schedule 40 PVC insulators for standoffs, 12 gauge wire for the matching section and a wooden post.

This antenna is fed for vertical polarisation, to give a low angle of radiation for DX and also a nearly omni-directional radiation pattern (broadside is the best direction by about 3 dB).

An effective 10-20m DX antenna for deed restricted lots... K7ZB, 15' A radio amateur friend and antenna designer came up with a simple design for a 10 meter vertical, which another friend and I modified to make work for the 14, 18, 21, 24 and 28 MHz ham bands.

Attic Coaxial-Cable Trap Dipole for 10, 15, 20, 30, 40, and 80 Meters NU3E A coaxial-cable trap dipole antenna installed in the attic provides a surprisingly effective solution to HF operation on the 10, 15, 20, 30, 40, and 80 meter amateur bands at a QTH with restrictive covenants that prohibit outside antennas.

QST article - 4 band vertical, 25' for 80m, 40m, 15m, and 10m bands.

ROTARY DIPOLE FOR 17 AND 20

DL2HCB Multiband Delta Loop

G3YCC 'Shorty' Dipole for 14mHz

Magnetic Loop Antenna for 20m, 30m, 40m by G4FON

Petlowany Three-Band Burner Antenna
The Petlowany Three-Band Burner is a simple, low-cost, trapless short vertical antenna which amazingly works on three HF bands (20, 15 and 10 meters). This web page contains pictures, performance data, and enough construction details so you can "homebrew" your own.