Apparatus for detection of electrical disturbances resulting from electromagnetic pulse and solar storm

An apparatus for detecting transient electromagnetic pulse disturbances associated with at least one of E1 and E2 phases of an electromagnetic pulse, comprising,

• an electromagnetic pulse sensitive feed for receiving a received signal wherein the electromagnetic pulse sensitive feed comprises a power supply line;
• a pulse detector operatively coupled to the electromagnetic pulse sensitive feed to detect pulse disturbance durations in at least one of microseconds and nanoseconds to output a detected pulse indication signal;
• wherein the pulse detector comprises an activation circuit to convert the detected pulse indication signal to an alert signal;
• and
• an alarm operatively coupled to the activation circuit for indicating on the alert signal;
• a sustained level detection circuit for detecting transient electromagnetic pulse disturbances associated with E3 phases of at least one of an electromagnetic pulse and a solar storm on the power supply line, the sustained level detection circuit comprising
• a low-pass filter operatively coupled to the power supply line;
• and
• a discriminator circuit operatively coupled to the low-pass filter for sending a signal indicating the low-pass filter output exceeds an over-voltage level;
• and
• a pulse train converter for producing a signal having pulse widths indicative of voltage level of a signal input to the pulse train converter.