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First, it is helpful to understand where RF is used. Before the advent of the cell phone, RF was mainly used in radio transmitters and receivers, radar tracking systems, and an assortment of test equipment to support these applications. Now RF is used extensively in all cellular phones where the frequencies have climbed from 500 MHz to up over 4 GHz. These phones are filled with RF components that all need to be tested. This has given rise to a large number of RF testers coming into the marketplace.
PTM Published on: 2012-07-23
