A simple method of checking the ECG paper speed.
A simple method of determining accurate rates on ECG machines has been described. A short-wave radio, capable of tuning station WWV (5, 10 or 15 MHz) and a telephone amplifier may be used to place the precise 1 second intervals pulses on the ECG, from which exact paper speed is determined. This information may then be used to calculate the precise rate of an implanted pacemaker stimulus for evaluating pacemaker battery life.
D004562:Electrocardiography / Q000295:instrumentation / Q000379:methods*; D006339:Heart Rate; D006801:Humans; D008433:Mathematics