Summary
Communications
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Extract
SDR--the wave of the future.
Users of manpack and vehicle-mounted tactical radios are faced with two choices in how they communicate voice and data across the Tactical Internet. They can acquire the current generation single channel 'software-controllable' radios, which typically operate in a single frequency band and are often updated versions of familiar radios, or postpone procurement until the next generation of multi-channel simultaneous operation multi-band, multi-mode Software Defined Radios (SDR) become widely available.
********** Any decision made today regarding the purchase of combat net radios will result in a twenty-year investment to say the least, as indeed radios have advanced considerably over the past two decades. In the 1980s radios could be described as: having an architecture that was largely hardware based, were reliant on a combination of Application Specific Integrated Circuits (Asic) and Digital Signal Processing (DSP), operating on a single frequency band and single channel only, offering few MIL-STD interfaces and having crypto algorithms that were hardware based and external to the set. The 1990s saw the development of ...See the full content of this document
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