20m Attic Dipole
This is several times higher than any other object on our property and is high enough minimum 1 2 wavelength height for a horizontal dipole to have a reasonably low angle of radiation on the 10 15 and 20 meter bands.
20m attic dipole. W3ff portable dipole this is the antenna w3ff designed for his walking portable station. To fit this antenna in an attic space i used an inverted v configuration. This was okay but appeared noisy. 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.
Other locals are using screwdriver style mobile hf antennas that can work with a proper ground plane installed as a base below them. The better your antenna the more success you will have making contacts. Stealth any antenna in the attic would be completely hidden so it would not violate the restrictive covenants. Aluminum plates or chicken wire can be used to create the required ground reflection.
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. Enjoy the videos and music you love upload original content and share it all with friends family and the world on youtube. Falcon radio antenna 20m this is an indoor outdoor apartment house condo attic or garage 20 meter 1 2 wave dipole ham radio transmitting antenna for the usa and uk. This was found to be quieter and made the antenna less sensitive to frequency changes.
There are telescoping whips at the ends of each side of the dipole and these whips are adjusted to bring the antenna into resonance on each of five hf bands 10 12 15 17 and 20 meters. I initially feed the dipole directly with a 1 1 balun and rg58 coax. Or outside on the roof or between 2 trees or the side of a wall or whatever you can imagine. It is a dipole constructed out of the plastic plumbing pipe cpvc.
It is made to be hung in the rafters or from the ceilings. Version 2017 nov 7 abstract this antenna is a 20 to 25 foot long 6 0 m to 7 6 m off center fed dipole antenna for the 20 m and 40 m bands designed for those who need to conceal an antenna. Mac af4ps fp 51 note. It can also be set up as a short vertical antenna that does not need a radial system.