Time Division Modulation And Demodulation Trainer is an SSI India product in the Communication Trainer category. Key specifications include SKU: PCT-E526. Modulating Input Frequency : Sine wave 200 Hz - 10 KHz(variable). Sampling Clock Generator Power Supply. Fixed DC Power Supplies +12V,+5V DC, 250mA. Operated on Mains power 230V, 50Hz