RF frequency synthesizer technology is widely used & there are several different types of PLL synthesizers, direct and indirect, digital...

Phase locked loops, PLLs are a key RF circuit building block, but they often appear to be shrouded in mystery....

overview, information, or tutorial about DSSS, direct sequence spread spectrum, and the way that the system operates.   Direct Sequence...

The radio signal is used for transmitting and receiving electromagnetic waves. It is an electronic device that generated signals artificially...

QAM: Quadrature Amplitude Modulation combines amplitude & phase changes to give additional capacity & is widely used for data communications....