20m Dipole Attic

I initially feed the dipole directly with a 1 1 balun and rg58 coax.

20m dipole attic.

Other locals are using screwdriver style mobile hf antennas that can work with a proper ground plane installed as a base below them. Dipole antenna balun center the dipole antenna i installed was cut roughly for 20m 14mhz but the final tuning has not yet been performed allowing for optimization for the in situ configuration. The better your antenna the more success you will have making contacts. Computer modeling will demonstrate this.

The infamous attic dipole. To facilitate installation tuning and future maintenance the antenna supports were chosen to be ring eyed lag bolts with pulleys attached. Enjoy the videos and music you love upload original content and share it all with friends family and the world on youtube. This was found to be quieter and made the antenna less sensitive to frequency changes.

This was installed at a previous qth i will be the first or millionth remember i m from fl to affirm that the antenna is the determining factor for success when it comes to one s station set up. As a data point eznec shows about one s unit directivity in the take off angle at 25 ft. For example one of our local club members has earned his was worked all states and dxcc awards using 100w and a simple bent leg 20m dipole that snakes in and around his home s attic hvac system. I later changed this by feeding the dipole twin feeder via a remote balun.

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. W5dxp apr 10 2015. Occasionally that might be enough to matter. More information on my website at http www fuzzthepiguy tech dipole hamradio homemade hf.

To fit this antenna in an attic space i used an inverted v configuration.