Table 2 AED1 tests results
Device designation | Type of interference observed | Field strength for worst-case failure (V/m) | Modulation(Hz) | Frequency range of failure (MHz) | Device's behavior (Observations from user standpoint) | Notes |
|---|---|---|---|---|---|---|
AED1 | False negative | 13 | 1 Hz pulsed (square wave) | 39-44 | Verbal response to fibrillation: "No shock advised" | V-Fib applied - no shock advised. Interference caused distorted ECG; analyzed as NSR. Analysis delayed during RF exposure. |
AED1 | False positive | 20 | 4 Hz pulsed (square wave) | 50 (single frequency test) | After analysis AED audio prompt: "Shock advised" and "shock advised" appeared in the ECG printout | NSR applied but shock advised. Interference masked the normal heart rhythm at a higher frequency |