Virtual laboratories developement for PAM/PCM learning

PAM and PCM modulations are fundamental in digital systems for telecommunications, integrating this topic within the study subjects of the Telecommunications Engineering career at UNED, Costa Rica. This work shows the research developed for implementing a PAM practice and another for PCM, through virtual laboratories in the Telecommunications Network Principles subject. Positive results were obtained through the analysis of the reports of 9 students who have applied them and, consequently, the functionality of the platform has been corroborated.