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Radio-frequency (RF) engineering is a subset of electrical engineering involving the application of transmission line, waveguide, antenna, radar, and electromagnetic field principles to the design and application of devices that produce or use signals within the radio band, the frequency range of about 20 kHz up to 300 GHz.
The Associate Electronics Technician exam is a certification of entry-level electronics professional knowledge to include not only electronics but also safety, record keeping and professionalism. The CETa is good for four years by itself and can be renewed without a journeyman certification. [ 5 ]
Electronic test equipment is used to create signals and capture responses from electronic devices under test (DUTs). In this way, the proper operation of the DUT can be proven or faults in the device can be traced. Use of electronic test equipment is essential to any serious work on electronics systems.
Electronics is a scientific and engineering discipline that studies and applies the principles of physics to design, create, and operate devices that manipulate electrons and other electrically charged particles.
Consequently, exam candidates typically spend large amounts of time preparing for the exam. [6] Exam pass rates vary by discipline module and test date, for the April 2010 exam, the pass rates for first time test takers ranged from 85% (Naval Architecture) to 46% (Structural I). The pass rates for repeat test takers is considerably lower. [7]
The basic components of analog circuits are wires, resistors, capacitors, inductors, diodes, and transistors. Analog circuits are very commonly represented in schematic diagrams , in which wires are shown as lines, and each component has a unique symbol.
The most common method for delivering test data from chip inputs to internal circuits under test (CUTs, for short), and observing their outputs, is called scan-design. In scan design, registers ( flip-flops or latches) in the design are connected in one or more scan chains , which are used to gain access to internal nodes of the chip.
An electronics technician helps design, develop, test, manufacture, install, and repair electrical and electronic equipment such as communication equipment, medical monitoring devices, navigational equipment, and computers.