Attic Dipole Plans

A short off center fed dipole for 40 m and 20 m by daniel marks kw4ti version 2017 nov 7 abstract.

Attic dipole plans.

Instead of cutting the dipole wire for best vswr i folded it over at each end until the vswr was minimum at channel 20. I hoped to find something that would work on with a 100 watt hf transceiver on all bands from 80m through to 6m. 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. Ehrenfried g8jnj i ve recently been looking at designs for an efficient antenna that would fit in a loft.

When there is insufficient area to mount a full size dipole. Another local uses an hf loop antenna tacked up around the circumference of the ceiling of a second floor bedroom. You can a 50 linear loading line in each leg of the dipole without loss. The attic is hot if you need to be told don t climb your outside tower in the ice storm then you should also appreciate the advice don t build attic antennas in the heat of the summer when the attic is 50c attic work requires the physical skill needed to climb rafters and not fall through the ceiling.

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. You can build a double bazooka with the same results as a linear. Loft attic antennas for restricted spaces m. It is small enough to fit inside the attic of many homes.

The better your antenna the more success you will have making contacts. Dipole and long wire antennas can also be used with mobile outdoor style auto tuners feeding them in an attic space. The infamous attic dipole. Ridgeline ocf dipole layout physically shortened dipoles are practical too for an attic antenna.

Mac af4ps fp 51 note.