Software Based Digital Communication Trainer is used for understanding the design and operation of communication systems. This Digital Communication Trainer covers ASK, FSK, PSK, QPSK, DPSK, PAM, PWM, PPM, TDM-PAM, PCM, AM, SSB, SSB-SC, DSB technologies. Software Based Digital Communication Trainer is designed by Tetcos. Tetcos also develops various software and hardware products in the communication and networking domain for academics, technical training and research segments. The Software Based Digital Communication Trainer, also known as Physim ™, has zero maintenance and no chance of malfunction. This Digital Communication Trainer enables easy up gradation of changed syllabus.