Homebrew antenna wire launcher
Category: Homebrew
Dual Band J-Pole for UHF VHF
An homebrew dual band j-pole antenna
Double Quad for VHF UHF by I5NZR
A Dualband QUAD made with two identical square loops, whose sides measure a quarter wave (?/4), connected together
Double Bazooka Antenna for 40 meters
Planning to setup a double bazooka antenna for 7 MHz during next months to verify performance of the Gap Titan DX on that band. I feel like the GAP is not so well performing on that band and I’m goint to setup for the CW portion of the 40 meters. This is the basic schema…
Short Vertical for 160 meters by I5CDF
Vertical Folded antenna for 160 meters band
4 Element Yagi for 6 meters
Dimentions Elements A, B, C spacing between elements 119.38 cms. E 1 Reflector 1: 304,8 cms. E 2 Radiator : 274,32 cms. E 3 Director : 271,15 cms. E 4 Director: 269,24 cms. D Distance with gamma match: 35, 56 cms aprox. E Gamma spacing: 7,62 cms. F Gamma tune: 50,8 cms x 12,5 mm…
The Clemens Match
The Clemens match is easy to make and reliable, and is preferable to a single Gamma match as it is balanced. I was first introduced to the Clemens match by G4IGO several years ago, Ken builds his in a slightly different way by putting the capacitor at the feeder end and connecting the far end…
Halo for 6 meters band
A good antenna that can be used for the car as well as the house is an HALO. This antenna maintains good omni-directional horizontal polarization. Basically the antenna is a half wave dipole bent into a circle,BUT shorter than a dipole for this frequency. The circumference is 60-70 inches. By useing the gamma match (see…
6m J-Pole by WB5CXC
Use a 54” piece of 450 ohm Ladder line. Cut out 3 inches of the center part of the ladder line. Solder a PL-259 on the bottom of the Ladder Line (both side of the ladder line will solder on the ground side of the PL-259 – this is used for the shorted part of…
VX-7R modification
Mars Cap and freeband modification for the VX-7R transceiver