The modulation scheme is broadly similar to that used by time signal station DCF77.

Like many digital modulation schemes, the constellation diagram is a useful representation.

Competing companies also offered 9600 bit/s products, but these were all based on proprietary modulation schemes.

This is a very simple-minded (but fairly robust) modulation scheme.

Any digital modulation scheme with a continuous phase can be used to impose the information on a carrier signal.

The most widely used modulation scheme is continuous phase modulation.

The following "modes" use no one specific modulation scheme but rather are classified by the activity of the communication.

E/N is also commonly used in the analysis of digital modulation schemes.

It is defined differently in each modulation scheme.

Nearly all modulation schemes are based on digital signals, which provides lots of advantages, but the output is analog.