Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. In November 2014, the Leonid meteor shower will streak across the ...

LoRa gear can be great for doing radio communications in a light-weight and low-power way. However, it can also work over great distances if you have the right hardware—and the right antennas in ...

On show is a three-element FM Yagi antenna line, available in two models suitable for medium and high power FM stacked array accommodating bands from 87.5-108MHz. These directional antennas can be ...

Electrical engineer Ramachandra Bhat Koodur, who has built one of India’s best ham radio stations in Kavoor, recently installed a high-performing Yagi antenna, a directional antenna with a rotator, on ...

When broadcasting was in its infancy, amplitude modulation (AM) was the principal modulation system being researched and developed. Once efficient generation of useful RF signals was discovered and ...

I’m going to go out on a limb here and start with a statement: In the real world, there is no such thing as a non-directional FM broadcast antenna. An isotropic radiator may be theoretically possible, ...

The demonstration of a Yagi–Uda nano-antenna that operates at visible wavelengths gives hope for a convenient means of directing radiation patterns from nanoscale light sources such as single ...