COM4LAB Course 365: Digital Modulations BPSK, QPSK, QAM and FSK

The COM4LAB courses in transmission and reception technology explain step by step the setup of classic and modern radio systems as well as the properties of analogue and digital modulation methods. The properties of the signals are analysed in more detail in the time and frequency domains. For this purpose, there is a transmitter and a receiver system on the board, in which all circuit blocks and components can be analysed individually.

In this second course Digital Modulations BPSK, QPSK, QAM and FSK, common digital modulation methods (BPSK, QPSK, QAM and FSK) are analysed metrologically.

The course covers the following topics:

• BPSK (Binary Phase Shift Keying)
• QPSK (Quadrature Phase Shift Keying)
• QAM (Quadrature Amplitude Modulation)
• FSK (Frequency Shift Keying)
• Time, frequency and constellation diagrams
• SNR (signal-to-noise ratio)
• QoS (Quality of Services)
• Crest factor and PAPR (Peak-to-Average Power Ratio)

The course …

• can be displayed and filled out on your own tablet/smartphone/laptop.
• is platform-independent - a current browser is sufficient.
• can be distributed to students via QR codes.
• enables interactive experimenting: The measured values from the Master Unit are automatically made available for evaluation in tables and diagrams. The analysis and documentation of the experiment on the student device can be done at school or at home.
• can be edited and thus adapted to your own lesson plan.