Attic Hf Dipole

Dipole lengths 1 2 wave antenna 468 feet freq mhz.

Attic hf dipole. Dipoles are widely used on bands like 80 metres 40 metres 20 metres 15 metres and 10 metres where they can provide excellent levels of performance. Mac af4ps fp 51 note. The infamous attic dipole. 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.

An auto tuner in the attic can work but you need a lot of counterpoise and there can also be a lot of problems to overcome. For the most common type of antenna the dipole the high voltage point is the ends of the antenna. There are a lot of dipoles in attics out there the big limiting factor here is the size of your attic. A project which i ve been meaning to complete for a very long time is to place a dipole antenna in the attic space of our house.

This will provide me a means of reaching out to the world while i save my pennies and look for a good deal on a multi band yagi uda hf antenna and possibly a different tower too. Let your antenna tuner worry about getting the best swr out of this system. The better your antenna the more success you will have making contacts. If you need more room consider zig zaging your wire just keep your turns at 90 degrees or more.

Dipoles are one of the simplest antennas to build or construct and erect for the hf amateur radio bands and on top of this they can be very effective. 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. It is possible to install a tuner in the attic and bring coaxial cable down from the antenna system to your station for a 1 1 swr on all bands. Do not forget the dipole antenna for a single and multi band use.

With his antenna matching unit providing an acceptable match he s on the air making contacts. Also commercial multiband or shortened dipoles work well. Antennas in the attic are a fire hazard this is one of my most favorite excuses because the factual case of a fire hazard is nearly impossible to make. Again run your dipole as far away from metal as possible.

In the case of the ladder line dipole just make it as long as possible and stuff it into your attic any way you can. Ladder line fed dipoles are ideal for attic use assuming that you can route the ladder line to your radio without too much metal contact.