RF Systems Since 1983 Narrow band radio frequency systems were introduced in 1983 and remained in use until 1990 and 1991 when spread spectrum devices became available. In 1999, 11 megahertz systems ...
The author is director, RF engineering at Shively Labs. We all want to get the most value out of money spent. RF system repair can be costly. However, a well-implemented maintenance program can ...
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