High Frequency

"We were shocked by the high frequency."

Learn how WSPR (weak signal propagation reporter) technology is a fascinating facet of the Ham radio hobby in this easy-to-follow article.

The Earth was hit Monday by an intense solar storm that could bring the northern lights to night skies further south than normal, a US agency announced.

To the extent that you have an opinion on something like high-frequency (HF) radio, you probably associate it with amateur radio operators, hunched over their gear late at night as they try to make co...

Despite the 150 million kilometers that separate it from the Earth, the sun does more than just light our way: it also impacts our electricity networks, and even our transport.

Sunspot region AR3697 has returned — unleashing yet another X-class solar flare. Watch it erupt from the sun's eastern limb here.

Increased solar activity could cause auroras as far south as Alabama and Northern California, but may disrupt communications on Earth tonight and over the...

A second chance to view the magnificent auroras produced by a series of solar flares and coronal mass ejections from the sun will arrive Saturday evening in ...

A recently detected sunspot region unleashed a powerful X4.5 solar flare early Monday morning, causing radio blackouts throughout parts of the Eastern...

An international team of researchers led by astronomers from Leiden University (Netherlands) has produced the first sharp radio maps of the universe at low frequencies. Thanks to a new calibration technique, they bypassed the disturbances of the Earth's ionosphere. They have used the new method to study plasmas from ancient black hole bursts. Potentially, the technique might be useful for finding exoplanets that…

Geomagnetic storm watch due to solar flare could also interfere with radio transmissions, per NOAA

A NASA telescope has captured the biggest solar flare in years, which temporarily knocked out radio communication on Earth. Scientists at the National...

You aren't crazy—your cell phone service is probably getting worse, primarily because of overcrowded frequency spectrums.

Hear from a ham radio operator about how solar eclipses temporarily affect Earth's upper atmosphere, or ionosphere. Eclipses can disrupt radio signals and GPS in the region where the eclipse is passing. The post Do solar eclipses affect Earth's atmosphere? first appeared on EarthSky.

/PRNewswire-PRWeb/ -- Pasternack, an Infinite Electronics brand and a leading provider of RF, microwave and millimeter-wave products, has announced the...

At Hill Air Force Base in Utah, researchers from MIT Lincoln Laboratory performed one of the first red-teaming campaigns against 5G in the field to assess networking vulnerabilities for military applications.

Article URL: https://lowendmac.com/2007/the-truth-about-crts-and-shock-danger/ Comments URL: https://news.ycombinator.com/item?id=36986781 Points: 1 # Comments: 0

The Orange Box portable Bluetooth speaker puts analog warmth and audio quality at the forefront, skipping many of the mod cons we've become used to in speakers like this..

Terahertz (THz) emission spectroscopy has emerged as a valuable technique for investigating static physical properties as well as ultrafast dynamics occurring in novel material systems that may remain hidden to other probes.

satellite receiver dish Low Noise Block (LNB) Low Noise Converter (LNC).