This has made small antennas more popular, despite some limitations. [Tech Minds] reviews the GA-450 indoor active HF loop antenna and finds it better than expected. You can see the video review ...

Loop antennas are great if you’re stuck in an apartment building or a congested city. They’re easy enough to make, whether you want a portable loop or a permanent installation.

The FXP.611 Cloud is a GPS/Glonass flexible loop antenna that resists external detuning effects. With a small form factor of 38 x 37 x 0.1mm, the peel and stick, flexible loop antenna targets ...

The author is a consultant in Carterton, New Zealand. This follows up his December article “ Tuned Bandpass Filter Is Solution to Backup STL.” Many years ago, the active whip antenna and the active ...

This is (will be) the ~LZ1AQ active antenna with an added HPF (to combat BCI) meant for HF (shortwave) reception. We use the improved N4CY + AA7U version as our base version with Nexperia PZT2222A and ...

The reduction of the test distance will lead to higher emission limits. In combination with pulsed signals commercially available active loop antennas are not suitable due to insufficient dynamic ...