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How to Protect Your Security System from Wi-Fi Jammers

In our digital world, security systems have evolved into sophisticated setups that often rely on Wi-Fi for remote monitoring and alerts. However, with this advancement comes the potential threat of advanced devices like Wi-Fi jammers, which can disrupt the signal between your security system and its central monitoring hub. While the notion of Wi-Fi jammers sounds alarming, their actual prevalence is often overstated. This article will delve into how to protect your security system from Wi-Fi jammers, providing practical advice to safeguard your home or business.

Listen to Swann’s Vice President of Global Marketing, Jeremy Stewart, discuss this topic in a short radio interview here:

Swann’s Jeremy Stewart discusses how to minimize the threat of Wi-Fi Jammers and maximize your security.

The Reality of Wi-Fi Jammers

Contrary to popular belief, Wi-Fi jammers are not as prevalent as they are often portrayed. These devices, designed to interfere with wireless signals, are illegal in many countries, including the United States, Australia, and the UK. Despite their illegality, Wi-Fi jammers can still be obtained through black markets or corrupt dealers. However, their use in residential areas remains relatively rare.

Most burglars are opportunists and unlikely to invest in or risk using such equipment. The fear of Wi-Fi jammers overshadows the more probable vulnerabilities in security systems, such as weak passwords or unsecured networks. Nevertheless, understanding how to mitigate the risk of signal interference is crucial for ensuring continuous protection.

Alternatives to Wi-Fi-Dependent Security Systems – Wired Security

One straightforward solution to bypass the risks posed by Wi-Fi jammers is to use a security system that does not rely on Wi-Fi. Wired security systems offer a robust alternative, eliminating the need for wireless communication. Here are some advantages of wired systems:

1. Reliability: Wired connections are less susceptible to interference compared to wireless signals. They provide a stable, uninterrupted connection between cameras, sensors, and the central monitoring unit.

2. Security: Without reliance on Wi-Fi, wired systems are immune to jamming attempts targeting wireless networks. This makes them a secure option for locations where signal disruption is a concern.

3. Quality: Wired systems often deliver higher quality video and data transfer, as they’re not limited by the bandwidth constraints of wireless networks.

While installation might be more complex and require more planning, the peace of mind offered by a wired security system can be worth the effort.

Wi-Fi Security Systems with Alternative Frequencies

For those who prefer the flexibility and ease of installation that Wi-Fi security systems offer, choosing a system that operates on alternative frequencies can be an effective strategy. Many traditional Wi-Fi systems operate on the 2.4GHz or 5GHz bands, which are commonly targeted by jammers. However, some advanced security systems, like the Swann MaxRanger4K™, utilize the 900MHz frequency, which is less commonly disrupted.

Benefits of the 900MHz Frequency

1. Less Congestion: The 900MHz band is less crowded than the 2.4GHz and 5GHz bands, reducing the likelihood of interference not just from jammers but from other household devices.

2. Better Penetration: Signals in the 900MHz range can penetrate walls and obstacles more effectively, ensuring consistent communication across different areas of your property.

3. Lower Target for Jammers: Because Wi-Fi jammers are typically designed to disrupt the more common 2.4GHz and 5GHz bands, systems operating on the 900MHz frequency are often not affected.

Investing in a security system that uses these less common frequencies can provide an additional layer of defense against jamming.

Local Recording for Continuous Protection

Even with the best preventive measures, there’s always a possibility that your Wi-Fi connection could be disrupted. To safeguard against this, opt for security systems that include local recording capabilities. These systems continue to capture and store footage on local devices, such as storage cards or dedicated hard drives, even if the Wi-Fi is interrupted. Look for devices that come with a starter SD storage card or can be expanded with one of your own, like most of the Swann Security line up.

Advantages of Local Recording

1. Continuous Monitoring: With local recording, your security system continues to document activity, ensuring that no crucial moments are missed.

2. Independent Operation: Systems with local storage do not rely solely on cloud services, making them more resilient to network outages or jamming attempts.

3. Immediate Access: In the event of a security breach, having locally stored footage can provide immediate access to the recordings, which is crucial for law enforcement and insurance purposes.

Choosing a system with robust local recording options adds a significant layer of security, ensuring that your surveillance is not entirely dependent on your Wi-Fi network.

Integrating Wi-Fi Systems into a Broader Security Strategy

No matter how advanced your Wi-Fi security system is, it should only be one component of a comprehensive security strategy. Here are additional measures to enhance your overall security:

1. Physical Barriers: Ensure that gates, doors, and windows are securely locked. High-quality locks and reinforcements can deter intruders from attempting to gain entry.

2. Motion Detection: Install motion-sensor lights and alarms to alert you and your neighbors to any unusual activity. These devices can act as a strong deterrent to would-be intruders.

3. Community Vigilance: Get to know your neighbors and build a network of mutual vigilance. A watchful community can provide an additional layer of security that technology alone cannot match.

4. Regular Maintenance: Regularly check and maintain all components of your security system, both wired and wireless, to ensure they are functioning correctly.

5. Diversified Security: Consider using a mix of wired and wireless systems, and incorporate other security measures such as surveillance cameras, alarm systems, and security patrols.

By integrating your Wi-Fi security system into a broader strategy, you create a multi-layered defense that enhances the overall security of your property.


Protecting your security system from Wi-Fi jammers is about more than just safeguarding your wireless signals. By considering wired alternatives, choosing systems with alternative frequencies like 900MHz, and ensuring local recording capabilities, you can significantly reduce the risk posed by signal jammers. Moreover, integrating these technologies into a comprehensive security strategy that includes physical barriers, community involvement, and diversified security measures will provide robust protection for your home or business. In doing so, you can ensure that your security system remains effective and reliable, no matter the threats it may face.

Photo by Rafael Classen