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Sunday, Jan 19th

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Int'l radio & TV Shortwave Telecommunications Pocket-sized VLF antenna keeps comms open where conventional radios fail

Telecommunications Pocket-sized VLF antenna keeps comms open where conventional radios fail

The US Department of Energy's SLAC National Accelerator Laboratory has developed a compact antenna that can transmit radio signals not only over long distances through the air, but also underwater, and even through solid earth. The new four-inch (10-cm) antenna exploits the piezoelectric effect to....


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