Attic Dipole Plans

Tune cb radio dipole vswr.

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. 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. Mac af4ps fp 51 note. Another local uses an hf loop antenna tacked up around the circumference of the ceiling of a second floor bedroom.

A short off center fed dipole for 40 m and 20 m by daniel marks kw4ti version 2017 nov 7 abstract. It is small enough to fit inside the attic of many homes. When there is insufficient area to mount a full size dipole. I hoped to find something that would work on with a 100 watt hf transceiver on all bands from 80m through to 6m.

Ridgeline ocf dipole layout physically shortened dipoles are practical too for an attic antenna. Dipole and long wire antennas can also be used with mobile outdoor style auto tuners feeding them in an attic space. You can a 50 linear loading line in each leg of the dipole without loss. I got about a 1 8 1 vswr perhaps due to 120vac power wires a few feet away.

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. Loft attic antennas for restricted spaces m. Hung dipole up in the attic using a nail at each end into the wood. Ehrenfried g8jnj i ve recently been looking at designs for an efficient antenna that would fit in a loft.

The infamous attic dipole.