Directing the fluorescence from nanoscale emitters such as single molecules and single quantum dots is a key factor in a wide range of applications, from the efficient detection of molecules for ...

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.

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 ...

I've constructed hundreds of antennae in the past. Bowtie dipole arrays, biquads, parabolic reflector dipoles, straight up yagi, logarithmic yagi, log periodic, heliacal and simple 1/4 whips. So when ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Prior to the digital television evolution, directional antennas at full-power television stations ...

15 dB High Gain Directional 6 Element Antenna. For portable and temporary, vehicle or mobile equipment mounted applications. Durable aluminium all-weather construction. Wind load rating - 100mph.