With the advent of man-made sattelites, is high-frequency radio still used to communicate...'beyond the horizon'? From it's invention until satellites this, an undersea cable, were the only ways to carry messages great distances across oceans. What's the situation today, anyone know?
Copyright © 2018 HubPages Inc. and respective owners.
Other product and company names shown may be trademarks of their respective owners.
HubPages® is a registered Service Mark of HubPages, Inc.
HubPages and Hubbers (authors) may earn revenue on this page based on affiliate relationships and advertisements with partners including Amazon, Google, and others.