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Definition of "Printed Circuit Assembly" |
A Circuit Card Assembly [CCA], a printed circuit board with the components attached. / Printed Circuit Assembly mechanically supports and electrically connects electronic components using conductive tracks, pads and other features etched from copper sheets laminated onto a non-conductive substrate. PCBs can be single sided one copper layer, double sided two copper layers or multi-layer. Conductors on different layers are connected with plated-through holes called vias. Advanced PCBs may contain components - capacitors, resistors or active devices - embedded in the substrate. / Radio jamming is the,usually deliberate transmission of radio signals that disrupt communications by decreasing the signal-to-noise ratio. |
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