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Keyless Car Entry & Relay Attack Security

Step through LF 125 kHz wake-up signals, UHF 433 MHz response transmission, dual-radio range extension, and UWB Time-of-Flight distance-bounding

VEHICLE ZONE (~1.5m)RELAY BRIDGE (100+ METERS)INDOOR / KEY FOB ZONEECUNODE 1(Near Car)2.4 GHz Link (100m)NODE 2(Near Fob)KEY FOB125 kHz (1.5m)BAND: LF 125 kHz | STATUS: ECU emitting 125 kHz wake-up pulse (1.5m range)
STEP 1 OF 6

1. Legitimate Proximity Trigger

When you touch the car door handle, the vehicle emits a Low Frequency (125 kHz) magnetic wake-up pulse. In normal operation, this signal only travels 1 to 2 meters looking for a key fob.

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