Category: VLF

via HACKADAY: Sferics, Whistlers, and the Dawn Chorus: Listening to Earth Music on VLF

We live in an electromagnetic soup, bombarded by wavelengths from DC to daylight and beyond. A lot of it is of our own making, especially further up the spectrum where wavelengths are short enough for the bandwidth needed for things like WiFi and cell phones. But long before humans figured out how to make their own […]

via the ARRL: UTC Approvals to Use 630- and/or 2,200-Meter Bands Arriving via E-Mail

E-mails have gone out to an undetermined number of US radio amateurs from the Utilities Technology Council (UTC), approving the stations’ intention to use 630 meters (472-479 kHz) and/or 2,200 meters (135.7-137.8 kHz). “UTC has determined that your proposed Amateur Radio station would not operate within a horizontal distance of one kilometer from a transmission […]

Historic NSS Call Sign to be Reactivated for First Time in More than 40 Years

Operators from the US Naval Academy Radio Club (W3ADO) and the Potomac Valley Radio Club (W3GRF) will reactivate the historic NSS call sign on May 13-14 during the Armed Forces Day Crossband Military/Amateur Radio Communications Test. Operation from the former NSS Naval Radio Station site on Greenbury Point in Annapolis, Maryland, will get under way […]

ARRL 600 Meter Experiment Reports 202,400+ Hours of Operation, Zero Interference Complaints

The ARRL 600 Meter Experiment under the WD2XSH Part 5 Experimental license reports that no interference complaints have been received from other services operating in the 465-515 kHz band over the course of more than 202,400 hours of operation, nor was interference from other operations an issue for any of the experiment’s participants. That statistic […]

ARRL: VLF Transmissions, Amateur Radio Activity Set for Alexanderson Day on July 3

VLF enthusiasts, take note: The SAQ Alexanderson alternator will be on the air for “Alexanderson Day,” Sunday, July 3, for a full-day event that includes both VLF transmissions and Amateur Radio HF activity from SK6SAQ, the ham station at the Grimeton heritage site in Sweden. The Alexanderson alternator — an electromechanical radio transmitter — is […]

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