44 thoughts on “ The Alexanderson Transmitter: Very-low Frequency Radio Rides Again! ” freq says: June 27, 2015 at 10:39 am ntenna Design: Tap ...

When we think of a spark gap radio transmitter, most of us immediately imagine an early twentieth century ship’s radio room or similar. Most of us know these transmitters as the first radio s… ...

Both of the freestanding modules (NS73MFM transmitter, Arduino UNO) can be mounted to a breadboard and interconnected. Refer to the hardware setup and proceed. The simple code generates digital tones ...

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 ...

The 40th District Court in St. Clair Shores has successfully conducted its first jury selection and trial since the onset of COVID-19 thanks to the use of a low-frequency radio transmitter. Jury ...

The low frequency limit poses a problem when many devices try to communicate at the same time because when more signals are introduced, they are more likely to run into one another and get jumbled up.

Arduino open source long-range RC transmitter. 12:14 pm January 31, 2023 By Julian Horsey. ... Having a reliable low-latency connection is really important.

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 ...