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Formerly known as Lextronics, it produces solar powered and hand-cranked shortwave and emergency radios sold in retail stores and online. It also sells Grundig-branded radios in North America and Europe. Some of its radios are manufactured and branded for the American Red Cross and Canadian Red Cross. The company slogan is Empowered by Nature ...
Grundig started as a typical German company in 1945. Its early notability was due to Grundig radio.Max Grundig, a radio dealer, built a machine called "Heinzelmann", which was a radio that came without thermionic valves and as a do it yourself kit to circumvent post war rules.
The best emergency weather radios are compact, portable, durable, and have backup power sources—via hand crank, batteries, or solar panels—so you’re never caught with a dead radio.
Grundig Satellit 400 solid-state, digital shortwave receiver, c. 1986 [1]. Shortwave radio is radio transmission using radio frequencies in the shortwave bands (SW). There is no official definition of the band range, but it always includes all of the high frequency band (HF), which extends from 3 to 30 MHz (approximately 100 to 10 metres in wavelength).
During World War II, Germany developed a hand-crank 500 kHz rescue radio, the "Notsender" (emergency transmitter) NS2. It used two vacuum tubes and was crystal-controlled. The radio case curved inward in the middle so that a user seated in an inflatable life boat could hold it stationary, between the thighs, while the generator handle was turned.
Some emergency radios can also be powered by an attached solar panel. One element that separates some emergency radios from other types of radios, is the ability to broadcast alerts from the Emergency Alert System, even when the radio sound is turned off. This is especially useful in areas where sudden storms, tornadoes, tsunamis or other fast ...
Marine radio was the first commercial application of radio technology, allowing ships to keep in touch with shore and other ships, and send out a distress call for rescue in case of emergency. Guglielmo Marconi invented radio communication in the 1890s, and the Marconi Company installed wireless telegraphy stations on ships beginning around 1900.
A mysterious radio blast from space detected in 2022 originated in the magnetic field of an ultra-dense neutron star 200 million light years away. Known as fast radio bursts, or FRB, such brief ...
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