First heard as US and Israeli strikes on Iran began, the shortwave broadcast has since been traced to a US military base in ...

A mysterious shortwave radio signal that began broadcasting in the hours after the Iran war commenced has captured the ...

Twelve hours after the US and Israel began bombing Iran on February 28, 2026, a shortwave radio signal started broadcasting ...

The broadcast repeats at regular time intervals. This eerie broadcast started on February 28, just hours after the United ...

As Solar Cycle 25 peaks, learn how increased sunspots and ionospheric ionization are boosting shortwave radio propagation.