The Alexanderson Transmitter: Very-low Frequency Radio Rides Again! June 27, 2015 by Elliot Williams 44 Comments Is your ham radio rig made of iron and steel?

It's easy to take modern wireless communication for granted above ground, but it's useless in areas where the signals can't propagate, like underwater or in caves. DARPA might have a better way ...

If you want to talk about antennas, the amateur radio community has you covered, with one glaring exception. Very low frequency and Extremely Low Frequency radio isn’t practiced very much, ul… ...

Artificial modification of Earth’s radiation belts by ground-based very-low-frequency (VLF) transmitters. Science China Press. Journal Science China Earth Sciences DOI 10.1007/s11430-021-9850-7.

The researchers designed and built a low frequency transmitter that is integrated into a football, and is within the standard deviation of accepted professional football weights.

Computer engineer Thiery Guennou based in France has created a new Arduino compatible precision frequency counter 5 or 120 MHz. The inspiration behind the ...

Narrow-band VLF transmitter waves originate from the powerful ground-based VLF transmitters for submarine communications, which are typically over the frequency range of 10–30 kHz. VLF ...