If Hollywood gets its way, future broadcasts of digital television will not only have crisp video and sound but also invisible data to block unauthorized sharing. The "broadcast flag" is promoted by ...

GPS III satellites are capable of broadcasting the M-Code signal, but the U.S. military needs an M-Code-capable ground system and receivers to get the new signal into the hands of troops. (Lockheed ...

No audio available for this content. GPS IIIF’s M-code can be broadcast from a high-gain directional antenna in a concentrated, high-powered spot beam, in addition to a wide-angle, full-Earth antenna.