Qam Dqam Demodulation Trainer is an SSI India product in the Communication Trainer category. Key specifications include SKU: PCT-E542. To study bandwidth efficiency of 8-QAM/DAQM. To study 8-QAM Demodulation technique. Switch Faults are provided on board to study different effects on circuit Power Supply. Fixed DC Power Supplies +12V,+5V DC,