Modern ham radio operators often face restrictions on antennas. This has made small antennas more popular, despite some limitations. [Tech Minds] reviews the GA-450 indoor active HF loop antenna an… ...

There’s a joke in the world of radio that all you need for a HF antenna is a piece of wet string, but the truth is that rudimentary antennas rarely perform well. Random pieces of wire may pul… ...

At present, portable receivers generally use ferrite rod antennas for LF and MF (below 2 MHz), and whip antennas for HF (up to 30 MHz). Each type has proved effective in its particular application ...

At present, portable receivers generally use ferrite rod antennas for LF and MF (below 2 MHz), and whip antennas for HF (up to 30 MHz). Each type has proved effective in its particular application ...

Shielded Loop Antennas for the AM Band Mar 8, 2013 5:01 PM, By Doug Irwin CPBE DRB AMD Last month I wrote some about making a notch filter for the AM band. However, before you have any signals to ...

When this antenna is connected to an HF reader at 13.56 MHz, you can then begin reading tags at a distance of a few inches from the antenna’s surface. These custom-designed antennas can, therefore, be ...

Micrel Semiconductor has developed a single-chip radio transmitter for unlicensed bands in the 280 to 460MHz range that automatically corrects for differences in a connected loop antenna so the board ...

Cutting the cord? Finding the best TV antenna can be tricky. From high-gain and 4K-ready to eco-friendly construction, here are the best antennas you can buy.

UK company Sarantel has developed a twisted loop antenna with a near field of less than 1mm The closeness of the near field makes it possible to place more than one antenna within a single device.

Harris Corp., Rochester, New York, has been awarded a maximum $12,245,098 firm-fixed-price, indefinite-delivery/indefinite-quantity contract for high-frequency full loop antennas.

The two to 30 MHz ½ loop Wide Band HF antenna allows for users to share images and videos, with transmissions able to cross thousands of miles. The antenna includes features such as increased ...