Experimental Evaluation of Jamming Attacks on GPS/GLONASS Receivers Using Low-Cost SDRs

• Lisandra Bozz Gonçalves Itaipu Parquetec
• Anthony Gabriel Kuhnen Itaipu Parquetec
• Vinicius Amilgar Brenner Itaipu Parquetec

DOI: https://doi.org/10.5753/eries.2025.15818

Abstract

Global Navigation Satellite Systems (GNSS), such as GPS and GLONASS, are widely used for location and time synchronization. However, they are vulnerable to jamming (interference) and spoofing (signal falsification), compromising their reliability. This work experimentally investigates the susceptibility of GPS and GLONASS receivers to jamming signals generated by low-cost software-defined radios (SDRs), using HackRF with Mayhem firmware. By emitting interference signals, the signal degradation was evaluated through the GPS Test application and the SEL-2488 dashboard. The results show that, even at multiple distances, significant loss or complete disruption occurs. Thus, it is concluded that accessible SDRs represent real risks, reinforcing the need for protection and monitoring.

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