As discussed in Part 1 of this series, as the frequency of a single or coupled tuned circuits is increased, the selectivity decreases to the point that there may be insufficient selectivity at the ...

FORT HUACHUCA, Ariz., -- More than a century after Guglielmo Marconi helped pioneer trans-Atlantic communications, High Frequency (HF) has continued to be a consistent, economical and reliable ...

Advanced long-distance communication solutions are needed for the military of the future, especially for operations in contested environments. Innovative high frequency solutions offer communication ...

Thales unveils the new HF XL range of tactical high-frequency wideband radios at Eurosatory 2024. The family of radios includes vehicle, manpack, and command post variants. (Janes/Olivia Savage) ...