Modern ham radio operators often face restrictions on antennas ... meter ham bands. According to the video, performance below 7 MHz was lackluster, but it worked nicely at higher frequencies. The ...

We don’t know if [OH8STN] has a military background, but we suspect he might since his recent post is about a “DIY Man Portable Magnetic Loop Antenna.” “Man-portable” is usually a ...

These antennas have moderate inherent directivity, but arrays can be better tuned for specific directions. Loop antennas have radiation patterns that are omnidirectional ... A circular polarized wave ...

Supplier: A.H. Systems Inc. Description: A.H. Systems' FCC-1 antenna provides an accurate standard for precise EMI and site anttenuation measurements (per OET-55 and ANSI C63.5). The FCC-1 is ...

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 ...

Rising 28,169 feet above the Earth's surface, Nepal's Kanchenjunga or "five treasures of snows" is the world's third-highest mountain and the object of destiny for the members of the Slovak ...

The installation of the main reflector for the antenna system of the 40-meter-aperture radio telescope completes in Shigatse, Xizang autonomous region, Oct 7, 2024. [Photo/CCTV News] The main ...

Smart meters measure your gas and electricity use, like traditional meters do, and send the readings to your energy supplier automatically. They give both you and your energy provider accurate and ...

As part of a nationwide roll-out, every home in Britain should be offered a smart meter from their energy supplier by the end of 2025. But what is a smart meter and how do they work? Here's ...