This book provides a quantitative electrocardiography (ECG) analysis to study the effect of 3G & 2G Mobile phone on The Heart activity.To measure the information content of the ECG, Authors analyze to change in the different parameter of ECG for different person consists of various waveforms of electric signals of heart. Electrocardiogram (ECG) signals are composed of five important waves: P, Q, R, S, and T. The work presents discussion about VAGAL and other important Parameters for electrocardiographic signals.The system consists of a hardware module for acquisition, a mobile for radio frequency transmission and finally a displaying module (PC or mobile devices). For obtaining accurate performance, the system is assessed by testing different subject with the support of a medical doctor.