Criminal Use of Jammers Underscores 700 MHz Vulnerability

GuideSeptember 27, 2026 · 5 min read · BuildRight Academy
Criminal Use of Jammers Underscores 700 MHz Vulnerability

Criminals used signal jammers operating on the critical 700 MHz band during a Texas jewelry store heist, interfering with police communications and leading to a proposed $25,000 fine from the Federal Communications Commission (FCC). This incident, detailed in a recent Notice of Apparent Liability (NAL), underscores the growing threat that readily available jamming technology poses to both public safety and commercial wireless infrastructure.

The Incident: Jammers Target Critical Frequencies

On September 22, 2026, the FCC issued an NAL proposing a $25,000 fine against Gean Becerra Paez, Juan Becerra Araya, and Alejandro Rodriguez Gonzalez. These individuals are accused of carrying two battery-powered jammers into an Irving, Texas, jewelry store at 2 a.m. on September 24, 2025. The jammers "appeared to be operating in the 700 MHz band" and caused "interference with their licensed communications" for Irving police officers responding to the alleged burglary.

The FCC's Enforcement Bureau, under new Chief Hunter P. Deeley, based its case entirely on a year-old Irving police report. The proposed penalty includes a $10,000 base forfeiture for unauthorized operation and $7,000 for interference, adjusted upward to $25,000 due to the "deliberate attempt to interfere with police communications during an illegal act." This action was taken just two days before the one-year statutory deadline for issuing forfeitures against non-licensees.

$25,000
Proposed FCC fine
700 MHz
Frequency band targeted
2
Number of jammers used

Why 700 MHz Matters for Wireless Infrastructure

For tower crews, crew leads, and safety managers, the specific detail that the jammers operated on the 700 MHz band is critical. This spectrum is not just another frequency; it is a cornerstone of modern wireless communication and public safety. The 700 MHz band hosts public safety narrowband voice channels and Band 14, which is licensed to the First Responder Network Authority (FirstNet) and built out by AT&T. FirstNet provides dedicated, high-speed communication for emergency services across the United States.

Furthermore, the 700 MHz band is a vital low-band LTE layer that commercial carriers rely on for extensive coverage and crucial in-building penetration. Interference on this band can severely degrade or disrupt essential communications for first responders, potentially delaying critical information during emergencies. It also impacts the reliability of cellular service that businesses and the public depend on daily. The fact that two portable jammers could "dent" this critical spectrum at a single location highlights a significant vulnerability.

The fact that two portable jammers could "dent" this critical spectrum at a single location highlights a significant vulnerability.

A Growing Threat: Jammers and Physical Infrastructure

The Irving incident is not isolated. Three months prior, in La Verne, California, seven defendants were arrested in connection with a break-in at Rodeo Jewelry. Prosecutors alleged that these suspects also used signal jammers and went further by cutting utility lines and fiber optic cables. This combined attack disabled 911 and internet service for a vast area, impacting over a million homes and hospitals. The Jewelers' Security Alliance has warned of a trend of professional burglaries involving similar methods, targeting both wireless signals and physical infrastructure.

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This pattern indicates that criminals are increasingly sophisticated, understanding how to disrupt communication and alarm systems by targeting both the airwaves and the physical fiber optic and utility connections. For those working on or managing wireless sites, this trend means a dual threat: electronic interference and physical sabotage.

Practical Takeaways for Field Crews and Safety Managers

The rise in criminal jammer use and attacks on communication infrastructure presents several practical implications for field crews, crew leads, and safety managers:

  • Heightened Awareness: Crews should be aware that jammers are being actively used by criminals. Unusual signal loss, especially in specific areas or times, could indicate a jammer rather than a network issue.
  • Site Security Protocols: Re-evaluate and reinforce physical security measures at cell sites, small cell locations, and other critical infrastructure. This includes robust access controls, surveillance, and monitoring for unusual activity.
  • RF Safety and Interference: While this incident focuses on malicious interference, it reinforces the broader importance of understanding RF environments. Crews working on sites need to be trained on identifying and reporting unusual RF activity or interference that could compromise public safety communications.
  • Reporting Suspicious Activity: Encourage all personnel to report any suspicious individuals, vehicles, or activities around wireless infrastructure sites immediately to local authorities and relevant network operations centers. This includes unusual equipment, attempts to access restricted areas, or signs of tampering with cables or equipment.
  • Emergency Communication Plans: Review and update emergency communication plans to account for potential disruptions from jammers or physical cuts. This includes alternative communication methods if primary channels are compromised.
  • Protecting Fiber and Utility Lines: Given the La Verne incident, ensure that fiber optic cables and utility lines serving sites are as protected as possible against physical tampering, especially in vulnerable areas.

Enforcement Challenges and the Broader Message

While the FCC's proposed $25,000 fine for the Irving jammer incident is a clear statement against illegal interference, the agency faces significant challenges in collecting such penalties. The NAL is being sent to "last known addresses," and the FCC has a documented history of uncollected fines, including a $34,912,500 forfeiture against a Chinese jammer manufacturer and a $116,156,250 fine against a robocalling scheme.

Despite these collection difficulties, the FCC's action reinforces the illegality and serious nature of operating jammers. The message for the wireless industry is clear: critical communication bands like 700 MHz are targets, and vigilance is paramount to protect the integrity of networks that serve both public safety and the general population.

Sources

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