The best indoor TV antennas let you receive free over-the-air broadcast TV channels without having to install a large outdoor antenna on the roof of your home. You’ll find that the main ...

The best indoor TV antennas let you receive free over-the-air broadcast TV channels without having to install a large outdoor antenna on the roof of your home. You’ll find that the main ...

"Reflectivity" is the amount of transmitted power returned to the radar receiver after hitting precipitation, compared to a reference power density at a distance of 1 meter from the radar antenna.

An 11-year-old was killed in a subway surfing mishap when the child was struck by a low beam while the train pulled into a Brooklyn station Monday morning, according to law enforcement sources.

We may earn revenue from the products available on this page and participate in affiliate programs. Learn more › If you want to watch free over-the-air TV without cluttering up your living room ...

It’s a skill that radio amateurs pick up over years but which it sometimes comes as a surprise to find that is not shared by everyone, the ability to casually glance at an antenna on a mast or a ...

For amateur radio operators, the quest for the perfect antenna never seems to end. Perhaps that’s because our requirements are always changing. We never quite seem to get to one design that can ...

Log-periodic antennas, which are multi-element, unidirectional, narrow-beam antennas that have impedance and radiation characteristics that are regularly repetitive as a logarithmic function of the ...

The microprocessor-based OAKTON Economy pH 11 meter takes measurements in pH, mV or °C. The mV output is used to take ORP readings. Other features include hold function, automatic shutoff ...

The DSN's array of antennas, including the renowned 70-meter antenna, plays a pivotal role in space exploration by enabling communication with distant spacecraft. Its arraying technology and various ...

The main advantage of LEO/MEO satellite systems from the point of view of antenna design is that mobile and handy terminals can use low-gain omnidirectional antennas, because of smaller values of free ...

First, the payload requirements and problems faced by traditional multi-beam antenna are described. The user beam of the VHTS payload system mainly uses Ka-band multi-beam antenna for a large ...