Part 1 explains the basics of amplitude modulation (AM) and frequency modulation (FM), ... A block diagram of a quadrature or I–Q modulator used to generate GMSK. A further advantage of GMSK is that ...

More generally, the amplitude of the overall signal is varied in line with the incoming audio or other modulating signal, as shown in Figure 3-2. Here, the envelope of the carrier can be seen to ...

1. Three basic digital modulation formats are still very popular with low-data-rate short-range wireless applications: amplitude shift keying (a), on-off keying (b), and frequency shift keying (c).

There are two radio modulation schemes everyone should know. Amplitude modulation changes the amplitude — or ‘volume’, if you will — of a carrier frequency and turns all rad… ...