As far as hobbies go, ham radio tends to be on the more expensive side. A dual-band mobile radio can easily run $600, and a ...

However, in spite of several cunning suggestions for super-gain antenna designs, the initial enthusiasm for the development of extremely narrow-beam antennas was soon replaced by sober scepticism.

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 ...

There is a very narrow beam focusing a lot of energy very directly ... “This would likely require more antennas and base ...

This provides a very high-quality beam shape (the small patch of the sky to which the telescope is most sensitive) and, thanks to the relatively large number of antennas ... sky covered for ...

Here’s how it works. I couldn't live without a TV antenna. It's as important to me as any streaming service because it allows me to watch sports, sitcoms and news without having to pay a monthly ...

LRAD devices emit an extremely loud focused beam of sound ... With sufficient power and a narrow beam antenna, the attackers wouldn’t even need to be in the same room or building as their ...

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 ...

A tilt angle of 0.5° means that the radar's antenna is tilted ... the radar beam is pointed very close to the ground and is very narrow. The lowest elevation angle for the TDWRs ranges from ...

External antenna jacks were common before smartphones, but are now extremely rare. Most modern phones do not have one. The jack is usually hidden behind a small rubber plug on the back of the ...

“For us, we viewed it as a game that is extremely important, and so the result is just extremely disappointing.” The key difference between the two sides on Sunday night was not just Chad ...