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… ...

I’ve built other split coax loop antenna in the past, but I shared as I was just surprised how well it worked across the whole HF Band, just guessed lengths and very low noise compare to a wire ...

However, a whip antenna is much less convenient for the user of the receiver, and the obvious question is whether a ferrite rod could be used instead at HF. Yet another possibility is the loop or ...

However, a whip antenna is much less convenient for the user of the receiver, and the obvious question is whether a ferrite rod could be used instead at HF. Yet another possibility is the loop or ...

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 ...

The procedure outlined below can help you understand the process of making and testing an HF RFID antenna. A loop antenna is a tuned LC circuit for a particular frequency, which is 13.56 MHz for the ...

Cobham is presenting the antenna as an alternative to using the satellite communication network. The two to 30 MHz ½ loop Wide Band HF antenna allows for users to share images and videos, with ...

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 ...

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 ...

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.