If you’re a regular reader of Hackaday, you may have noticed a certain fondness for Meshtastic devices, and the LoRa protocol ...

When you think of directional ham radio antennas, you probably think of a Yagi, cubical quad, or a log-periodic antenna. These antennas usually are in a horizontal configuration up on a high tower.

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 ...

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 ...

Yagi antenna can be used at transmission or reception but are more used for transmitters. This antenna is a directional system consisting of an array of a dipole and a reflector and one or more ...

Active Elements: 32 Element Diameter: 5/16-inch Beamwidth, 16• +/- 1dB Gain: 12-14 dBi Maximum Height: 14 inches Maximum Width: 5 inches Maximum Length: 51 inches Polarization: Vertical or horizontal ...

New Yagi Antennas come in 3dBi, 6dBi, 9dBi, 12dBi, and 14dBi gains. Each antenna gain family includes a variety of connector types installed including, N male, N female, SMA male and RP-SMA male.

For the first time, physicists have successfully converted electrical signals into photons and radiated them in specific directions using a low-footprint optical antenna that is only 800 nanometers in ...