Attic Hf Ham Antenna

With time bare copper oxidizes the wood where the wire is tightly stapled to absorbs some of this oxidization and forms a loose yet lossy bond with the wire.

Attic hf ham antenna.

Viewer request to try out an antenna for ham radio in the attic. The radio antenna that can receive and transmit the signals between 3 30 mhz are known as the hf antenna. Another local uses an hf loop antenna tacked up around the circumference of the ceiling of a second floor bedroom. Keep the antenna as high off the floor as possible.

On hf wire beams can be run on the roof supports or the rafters these usually are good for one direction only but can be switched electrically for different coverage. The same techniques apply. The house will act as a natural shield and as long as your attic mounted antenna system is independent to the rest of your antennas lightning won t be an issue. Thanks david for the insulators first to comment below i ll send you an insulator in the mail.

Bare copper antenna wire stapled directly on wood rafters causes loss of rf signal energy. Using the cq antennas center insulators from ke5fen. The same dipoles and loops that you use in your attic can also be used in any other room in your home. Dipole and long wire antennas can also be used with mobile outdoor style auto tuners feeding them in an attic space.

Hf in the hf antenna stands for the high frequency. Falling through the roof is a much more likely scenario. Need lots of room keep them away from metal objects like heaters and ducts wire antennas can be run near the peak of the roof inside the attic bent in odd shapes to match the space available. Attic antennas many types of antenna can be mounted in the attic if you don t have radiant barrier tech shield.

A second advantage to mounting the antenna in the attic is that you will be protected from lightning strikes in the event of severe weather. This is great for the amateur radio operator that is providing net control activities during a skywarn severe weather activation. It is theoretically possible to create a fire in the attic from your ham radio antenna but the conditions required for that to work require purpose and luck making this not a realistic concern for the typical attic farmer. On vhf a beam antenna can work well in the attic even a rotator can be used.

As with most antennas the more height the better for indoor operating however most hams recommend using low output power. They are very useful in radio communication or even the tv signal reception.