カテゴリー別アーカイブ: jamming

This statement is released by the office of Attorney General Chris Carr.

Attorney General Chris Carr is pressing the Federal Communications Commission (FCC) to take urgent measures to enable the use of cell phone jammers in state prisons and local jails. The FCC currently enforces a ban on cell phone signal jammers, a restriction that applies to state and local entities. Despite this, contraband cell phones are being used in correctional facilities across the nation to plan violent attacks and engage in other criminal activities, which presents a significant safety risk to correctional personnel, visitors, inmates, and the public.

Carr remarked that the easiest method to protect the public from the hazards of contraband cell phones is to permit the deployment of cell phone jamming technology in correctional institutions. However, he expressed concern that the FCC continues to hinder these efforts. He indicated that this obsolete guidance limits crucial law enforcement tools, poses risks to correctional officers, and allows for the expansion of criminal enterprises both inside and outside of prisons. He emphasized their resolve to combat violent crime in all settings, urging the federal government to remove this significant impediment to public safety.

In the year 2023, Georgia authorities confiscated 8,074 contraband cell phones, and in 2024, they have already seized 5,482. A recent case highlighted the misuse of such devices when an incarcerated leader of the “Yves Saint Laurent Squad” directed the stabbing of an 88-year-old veteran from Georgia via a contraband cell phone. Moreover, a gang leader from North Carolina successfully orchestrated the kidnapping of a prosecutor’s father from his prison cell using a cell phone. In California, prison gangs are reported to use contraband cell phones to facilitate both murders and drug trafficking within the correctional environment.

“There are hundreds of examples across the country of how contraband cell phones in the hands of inmates have been used as lethal weapons and enabled them to continue their criminal activities. We are outraged that these individuals are continuing these activities and endangering the public,” said Georgia Department of Corrections Commissioner Tyrone Oliver. “As attempts to infiltrate our prisons with contraband cell phones continue to evolve, access to jamming technology is critical to our ability to combat these attempts. We thank Attorney General Carr for his support of our ongoing commitment to public safety and safe prison operations.”

In his written communication, Carr remarked that the FCC’s policy is derived from a statute that was put into effect in the early 1990s, which predates the use of contraband cell phones by prison inmates to orchestrate and engage in unlawful and dangerous conduct.

Carr further stated that 47 USC § 333 does not impose any restrictions on the FCC regarding the modification of its policy to enable state agencies to employ cell phone jammers in prisons. In reality, the U.S. Bureau of Prisons has acknowledged the potential effectiveness of cell phone jammers and has received authorization to use them in various federal prisons, including one in Georgia.

Is there a device or method to call 911 even if cell phone jammers are being used in the area?

In the past, my abuser would use a cell phone jammer when he broke into my house, preventing me from calling the police right away. I tried to call 911, but the call never went through.

I eventually reported him to the police. I’m worried he’ll show up again. How do I make sure I can call 911 no matter what? Will a wearable panic button still work with a cell phone jammer? What about a satellite communicator for hiking/backpacking?

Realistically, the FCC will only start investigating once the problem is frequently reported because they don’t have staff around the country to do this kind of signals intelligence. If the OP lived in or near a major city, they would have more success because the FCC offices in major cities do have equipment to locate pirate signals and jammers, but again, I don’t think they would respond to any single incident because they would never be able to get there in time to get the information.

There’s a guy in my area who puts a jammer in his car every day when he drives on a busy interstate during rush hour because he thinks it will stop people from using their phones and make his driving safer. All the cell phone carriers reported it, but it took the FCC 3 years to actually investigate and catch him.

In areas with cell phone signal jammers, it can be very difficult to call 911 because the main function of a signal jammer is to block the network signal of the mobile phone.

However, there are several strategies and techniques that may help when calling 911 in an emergency:

1. Landline Phone: Using a traditional landline phone will not be affected by cell phone signal jammers and can directly dial 911. Although landline phones are not widely available, they may be available in some buildings (such as hotels or office buildings).
2. Satellite Phone: Satellite phones do not rely on traditional cellular networks and are therefore not affected by ground-based signal jammers. These devices can connect to satellites in extreme environments to send emergency messages. However, satellite phones are more expensive and require direct access to the sky, so they may not work well inside buildings.
3. Wi-Fi Network Calling: If the Wi-Fi network in the area is not interfered with, using Wi-Fi calling features (such as some smartphones and VoIP apps) may be able to bypass interference and dial 911.

Could the approach of linking phones to create a singular, extensive distributed antenna assist in thwarting Russian electronic warfare tactics?

As reported by an American organization developing a system in Ukraine, networked cell phones that operate on specialized software might offer a low-cost and easily implementable counter to the advanced electronic warfare techniques used by Russia.

The use of electronic warfare by Russia, including techniques such as signal jamming and GPS spoofing, complicates the operational landscape for Ukrainian forces, hindering their ability to effectively utilize drones and high-end U.S. weaponry. Detecting and identifying enemy jamming equipment usually requires advanced software-defined radios, which are commonly supplied to the United States and other financially capable military entities. In contrast, smaller militaries like Ukraine’s find it challenging to secure these necessary tools in sufficient numbers due to limited budgets.

If a low-cost system is developed to pinpoint enemy jamming devices, it could empower Ukrainian operators to recover some tactical advantage against their more heavily armed opponents. This development might also reshape the strategies of cellphone network providers in reinforcing their devices against advanced attacks.

Near Christmas of last year, the Ukrainian military reached out to Sean Gorman and his team at Zephr, a company known for its expertise in protecting devices from GPS-signal interference. Zephr promptly sent six Android Pixel phones, loaded with their software, to Ukraine, and in April, they started field tests in areas adjacent to the frontlines in Donetsk.

Gorman conveyed to Defense One that the phones were mounted on drones, incorporated into cars, and arranged on stationary stands. They have also engaged in controlled experiments where their own jamming devices were used, enabling them to pinpoint the location.

The primary focus was to explore if regular consumer phones, working collectively in a network, could indicate the presence of an entity trying to disrupt GPS location data. The results showed that by comparing the GPS reception among different devices, they could detect when one or more phones were under threat.

As Gorman explained, “Our methodology primarily revolves around exploiting the sensors present in the phone. The most crucial sensor is the raw data from the global navigation satellite system (GNSS) that the phone provides. This includes automatic gain control (AGC), Doppler information, carrier phase, code phase, and other data that mobile devices collect concerning their distance from satellites, cellular towers, and other network equipment.”

To optimize performance, manufacturers install these sensors in mobile phones, allowing them to identify the nearest cell tower. The measurements obtained are crucial for the GPS-processing software that informs users of their location. By gathering data from a broad spectrum of phones, one can ascertain which devices are potentially under attack.

As Gorman explained, the computational AI we have implemented in the backend, along with the complexity of our signal and software processing, provides extensive capabilities. Instead of relying solely on sensors or prohibitively expensive antenna arrays, there is a significant advantage in connecting phones to operate as a single, large distributed antenna.

The analyses revealed additional insights into the realm of Russian electronic warfare.

The Baltic Sea is witnessing Russian interference with GPS signals, leading to the display of incorrect location data by receivers. NATO officials have described this as a perilous situation for commercial aviation. A frequent countermeasure against drones is the spoofing of GPS signals, which causes the drone to erroneously perceive that it is above an airport, thus requiring it to land or vacate restricted airspace.

Soldiers in Donetsk, Ukraine, regularly report encountering spoofing attacks targeting their drones. However, Gorman and his team have found that much of this “spoofing” is actually attributable to high-powered jamming attempts. These jamming activities occur within the same frequency bands as GPS or GNSS, which allows them to imitate satellite signals. This phenomenon results in the appearance of phantom or ghost satellites in areas where they cannot logically exist and still deliver a signal, such as beneath the horizon.

In a report to Defense One, Gorman explained that the noise detected does not resemble a conventional GNSS signal, although it does contain energy at the frequencies the receiver is scanning for satellite signals. The signal-processing algorithms of the receiver apply correlation techniques to discern and track these satellite signals. When a powerful jamming signal is introduced, it can create false correlations, leading the receiver to erroneously conclude that it is detecting satellites that are not actually observable.

Currently collaborating with the Ukrainian government under a contractual agreement, the group is focused on advancing their research to go beyond the detection of signal jammers, aiming to pinpoint their locations for potential avoidance or eradication.

According to Gorman’s email, the new techniques being developed will estimate the location of signals of interest using three inputs: 1. localization by range inferred from power; 2. localization by area of effect; and 3. triangulation of jammers based on the angle of arrival. Each smartphone will identify the interference signal, record the last known position, and timestamp the reception, generating data points across the network. By aggregating and processing these signals centrally, the system will triangulate the position of the cell phone jammer.

The U.S. military is channeling substantial funds into alternatives to GPS, often called alternative position, navigation, and timing (Alt PNT), to enable individuals, drones, and other entities to determine their precise locations. Unfortunately, many of these investments have not proven to be particularly fruitful.

As Gorman pointed out, the operation cannot proceed without a predetermined known position, and it is nearly impossible to determine this position without GPS.

The proposed networked approach will not take the place of other, more costly military systems that are utilized for the detection and identification of jammers. However, it does provide a solution that can be implemented swiftly and economically for military organizations such as Ukraine, as well as other groups that may face disruptions from jamming activities, including first responders. Additionally, while it will not replace the pursuit of alternative position, navigation, and timing methods, it may contribute to their improved effectiveness.

Gorman indicated that there could be a radically different perspective to consider. Instead of funneling all resources into Alt PNT and GNSS resilience, which are indeed useful, we might want to assess how this has become a reality. He stressed the importance of mapping and understanding the area in relation to the emitters, which would enable us to steer clear of those areas and remove the emitters.

Until the month of June, Vanderburgh County Sheriff Noah Robinson had not acknowledged the degree of disorder that signal jammers could introduce into law enforcement operations.

At that point, his office came across one positioned in the rear section of a car.

In a presentation to an interim legislative committee last week, Robinson indicated that the office had received a notification about a burglary in progress. The staff leveraged the camera systems within the subdivision to locate a vehicle associated with the alleged perpetrators.

Robinson reported that the officer’s radio and computer failed to operate when the vehicle was pulled over.

Signal jammers can effectively obstruct various forms of communication, including Wi-Fi, Bluetooth, and GPS, thereby affecting devices such as phones, Ring doorbells, and wireless alarm systems. Robinson mentioned that the wifi jammer his office uncovered has a range of one mile.

He engaged with an interim panel that specializes in the criminal code, calling upon the lawmaker-led entity to consider the formulation of a new law that would make the importation and various uses of the devices illegal.

Robinson remarked that it is not essential to pursue this matter extensively to realize that it possesses other functions, particularly regarding terrorism.

He illustrated various situations where malicious actors could potentially disrupt medical devices in hospitals, hinder police communications through surveillance towers, access the mobile phones of everyday individuals via cellular networks, and manipulate traffic flow controlled by wireless traffic signals.

Under federal regulations, signal jammers are unlawful. The Federal Communications Commission prohibits the marketing, sale, or operation of any device that interferes with authorized radio communications.

Representative Matt Pierce, affiliated with the Democratic Party and hailing from Bloomington, indicated that correctional institutions cannot resort to signal jammers to eliminate their problems with contraband telephones.

Senator Lonnie Randolph, from East Chicago, posed a question regarding the reasons Indiana lawmakers should evaluate potential changes in light of the federal prohibition on these devices.

It was noted by Robinson that Indiana officers are not endowed with “immediate” law enforcement authority due to the absence of a relevant state statute.

Representative Wendy McNamara, who oversees the interim panel and the House’s Courts and Criminal Code committee, conveyed her opinion that Robinson’s office was fortunate, emphasizing that the situation “could have been much worse.”

Yet, she noted that the legislative action regarding the technology might not take place without delay.

Addressing the media, McNamara remarked that, truthfully, we lack a structured method for dealing with signal jammers at present.

The US Space Force will install 24 satellite jammers capable of disrupting Russian or Chinese communications

July 23, 2024

War. War never changes: thanks to the military-industrial complex, the technology of war will continue to escalate no matter how the world situation changes. Russia is reportedly developing a high-altitude nuclear device that uses electromagnetic pulses to permanently and indiscriminately disrupt enemy communications. Meanwhile, the United States has just announced a weapon with similar purposes but without the chaotic and irreversible consequences.

The US military is installing modular advanced satellite signal jammer capable of disrupting Russian or Chinese communications if necessary. Although the hardware is terrestrial, the US Space Force will oversee the installation and operation. The technology has already completed prototyping. Earlier this year, the military tested the system at two different locations. The Department of Defense has allocated funds to build 24 remote facilities, 11 of which are scheduled to be deployed by the end of the year.

This equipment is not a preventive measure to prevent adversaries from disrupting US communications. Quite the opposite.

“[The terminals] are small, mobile, and low-cost SATCOM portable jammers that can be deployed in austere environments to protect [U.S. forces],” a spokesperson for the U.S. Space Force’s Rapid Capabilities Office told Bloomberg. “[The jammer gps will be used] to responsibly counter an adversary’s SATCOM capabilities to launch an attack.”

“We intentionally designed a small, modular system using commercial off-the-shelf components. This provides the ability to be proliferated, remotely controlled, and relatively relocatable,” the Space Force said.

Why it matters:

1. This proves once again that when it comes to electronic warfare involving space assets, no signal is secure.
2. This makes it pretty clear to you that at least China and Russia, and possibly Iran and North Korea, as well as other nations (and some of our allies) have similar capabilities.
3. It should reinforce the idea that if a service is really that important (like PNT), we should have multiple widely available ways to get it, not just through space.

Other things to know:

• Both China and Russia have widely available non-space PNT methods.

In a statement by the Los Angeles Police Department, officers warn that a group in Wilshire is using wifi jamming technology to disarm surveillance cameras and alarm systems that rely on Wi-Fi.

(TNS) — A group of thieves have been outsmarting smart devices across the Los Angeles area, authorities said.

In a March 4 statement by the Los Angeles Police Department, officers warn that a group in Wilshire is using Wi-Fi jamming technology to disarm surveillance cameras and alarm systems that rely on Wi-Fi.

This swarm of tech-savvy robberies in California is part of a larger “smart” crime wave happening nationwide. Last year, police in Minnesota and Connecticut issued similar warnings to residents when groups of Wi-Fi jamming thieves made their rounds. And those are just two examples of many.

While the Federal Communications Commission has banned Wi-Fi jamming devices, this doesn’t stop criminals from buying them cheaply, KARE11 reported. Wi-Fi jamming devices don’t necessarily deactivate devices, but work by overloading the network the devices are connected to.

“These (signal jamming) devices create traffic jams for the radio transmitter so that real traffic cannot get through,” cybersecurity expert Mark Lanterman told the outlet.

“If you are going to use a Wi-Fi camera for your front door, perhaps consider using a hardline camera inside your home,” he said. Wired cameras connected via Ethernet cables do not rely on Wi-Fi networks and would not be disrupted by a Wi-Fi jammer.

Los Angeles police also recommends hard wiring burglary alarm systems

While “smart” technology may be part of the problem, it may also have a hand in the solution, according to Tom’s Hardware. Officials recommend using timers or smart home devices to make it look like someone is home while you are away. Some smart home technology also comes with the ability to alert users if the signal or connection has been interrupted.

Tom’s Hardware also recommends connecting surveillance devices that store camera footage directly on your device, and not just to a cloud storage system. By having a camera that records to itself, you’ll have footage saved during a Wi-Fi disruption.

The LAPD also encourages people to stay vigilant by locking their doors, relying on neighbors to check on things when away and reporting any strange activity, including suspicious vehicles with temporary or dealer plates.

Advantages of cell phone signal jammer

Cell phone jammers prevent and disable any mobile phone communication from entering specific areas of a building or open space to…

• Prevent industrial espionage using mobile devices as eavesdropping devices or for taking photos (cameras)
• Counter terrorist threats, such as remotely detonating bombs in high-risk areas
• Eliminate public nuisance in places such as cinemas, restaurants and churches

How cell phone blockers work

Cell phones are two-way radios that communicate via cell towers. cell phone jammer work by sending a strong signal on the same frequency used by mobile devices to effectively interfere with communication between the device and the cell tower. The result is that the mobile device does not work and “No network” is displayed.

Physical description of cellular jammer

It comes in different sizes and shapes. Some are pocket sized, some are bigger. Some masquerade as plain phones or briefcases.

Precautions before buying a mobile phone jammer:

• What is the effective interference range (10-50 meters above)

Which cellular systems can it block (cdma in North America, gsm, tdma, 4G, 3G amplifiers, pcs, dcs or all?)

• How many cellular systems can it block simultaneously (cdma, etc…) (Low-end models can only block one type at a time, while more complex models block multiple systems at once)

Indoor 3G cell phone signal blocker

As we all know, for a certain purpose, in order to achieve the ideal state, now mobile phone signal blockers are used to help people achieve the purpose, and in the various types of mobile phone signal blockers sold on the market to buy one that can meet your requirements is the best choice. For those who are looking for a signal blocker that can cut off 3G cell phone signals and also has adjustable features, they can take a look at this “4 antenna Adjustable Cell Phone Signal” remote control jammer that will be introduced here soon.

As we all know, in different situations people may need to cut off the signal of different frequency bands, if this is the case, gain one with adjustable function may be a good choice, because it allows you to choose the interference frequency band you want, and since this 3G mobile phone signal blocker design has adjustable buttons, so you can easily reach the target. In addition, since this is a high-power 3G phone jammer and is designed with 4 antennas, it can also easily cut off 2G 3G phone signals at the same time. This adjustable 3G mobile phone signal blocker features a high-power design that interferes up to 40 meters depending on the signal strength in a given area.

More importantly, the 3G mobile phone signal blocker is also designed with a good cooling fan system, so that the 3G mobile phone signal blocker always maintains a good working condition, without producing high temperature harmful to the 3G mobile phone signal blocker itself. Therefore, one aspect that people will also consider is the application field of this high-power 3G mobile phone signal blocker, if so, you do not have to worry about this high-power 3G mobile phone signal blocker, you can easily use it in churches, churches and other places, theaters, concert halls, classrooms, libraries, banks, museums and other places do not allow loud talk, But some people can’t resist talking on their mobile phones, and other places where the use of mobile phones is not allowed, this 3G mobile phone signal blocker can also be used.

4G cell phone signal blocker

The full name of this handheld signal blocker is “6 antenna Handheld 3G 4G full frequency mobile Jammer”, this is a 3G 4G full frequency mobile jammer, with 6 antennas, in addition to cutting off 3G, 4G(LTE) and 4G(Wimax), the jammer can also block normal 2G mobile signal at the same time. Such as CDMA, GSM, DCS and PCS mobile phone signals. And with a portable design, it is lightweight and can use a rechargeable battery as a power source, so this portable 3G 4G signal jammer is easy to remove when needed.

So while this is a handheld 3G 4G phone jammer, it’s also designed with a high-quality cooling system so you can use it without worrying about the temperature. In addition, this handheld 4G signal blocker has also been designed with an on-board charger, so that it can easily be used in the car, so for people who need to use this handheld signal blocker in the car, just choose this one. . Therefore, this handheld 4G mobile phone blocker is also designed with selectable buttons so that you can decide the interference frequency band according to the actual situation you are in.

This is a common misconception. Many people tend to think that in an emergency, cell phone jammer do block emergency calls. They couldn’t be more wrong.

Did you know that your regular smartphone can still make emergency calls even without a SIM card installed? Most cell phones are designed so that if you run into trouble and can’t connect to the network provider you signed up for, you can still call 911 and other emergency services.

As a precautionary safety measure, you can always connect to emergency services. This is the international standard. For example, in the United States and other countries, there is a law that requires cell phones to be able to make emergency calls even in the event of a complete shutdown of service.

Similar to roaming services when you are abroad, your phone can be connected to any other available network to make emergency calls. 911 in the US, 999 in the UK and 112 in Europe will override any roaming listings or unregistered ones and will force the phone to try to connect to any network it can receive.

The basic understanding is that if you have a cell phone, all providers must accept 911 calls and forward them to a call center. Mobile phones are designed to allow calls to local emergency numbers using any available and compatible network, even without a subscription to the provider (i.e. SIM card via GSM phone).

Since most jammers emit low-power signals, the following bands will still be able to communicate with cell towers and will not be blocked (in most cases) anyway:

Police band

EMS Band (Emergency Medical Services)

Fire band

Cellular jammers can prevent teenagers from negligent driving

This is a big concern for many parents. Knowing that your son or daughter is driving will always worry you. Today, most accidents are caused by distraction while driving using a cell phone. The number of deaths caused by distracted driving is staggering.

Cellular jammers, which are installed in vehicles and automatically activated once a certain speed limit is reached, will go a long way towards reducing these numbers and allowing for more accurate and careful driving. No more Facebook or Instagram; No more WhatsApp messages while driving. We could all be safer on the roads.

Considering everything in this article, it’s clear that we’re in favor of legalizing the sale of cell phone signal jammer. Although they are illegal, there is great public interest in them and their use has increased over time. In this technological world, the need for such devices cannot be ignored.

The demand exceeded our expectations, and more and more people came to us for solutions to this never-ending problem called the mobile phone.

Currently, we are renting a house. The neighborhood becomes very noisy in the late evening, well past midnight, as our neighbors play loud music.

Contacting the police proves to be of no avail. Despite my multiple attempts to seek their intervention, their assurances to send assistance remain unfulfilled. Consequently, I initiated an investigation into signal blockers that solely disrupt wifi signals, not cellular ones. Fortunately, I stumbled upon a device that seems to perfectly meet my requirements.

I must confess that I was initially skeptical about their payment processes. Nevertheless, I soon came to the conclusion that their product was exactly what I had been in search of.

I submitted the payment and waited with patience. The standard shipping policy outlines a delivery period of 7 to 15 days.

After the passage of 15 days, we were furnished with the tracking information. It then proceeded to clear the port and was subsequently taken into the possession of DHL for transportation. In a remarkably short period of 2 days, the package arrived at its designated location.

Once I had taken it out of the box, I proceeded to attach the antennas and connect the charger. It was a pleasant surprise to find that the battery had been fully charged.

We endured a few days of sleep disturbance caused by the unwanted music before taking action. Retrieving the device from the nightstand, I activated it. It is important to note that these neighbors live a few houses away from us. Surprisingly, within a few seconds, the music ceased. Subsequently, I overheard people discussing the issue at hand. In order to investigate further, I left it playing for a solid 20 minutes. Finally, I switched it off and retired to bed.

The jammer device experienced a loud bang and emitted smoke when I charged it for the first time, resulting in irreparable damage. After contacting the company, I was provided with an RMA return number and directed to ship the device to China for repair or replacement. The return shipment cost me an extra $25, on top of the initial payment of over $350 for the device. It took a significant amount of time to receive the restored radio signal jammer.

Indeed, the cell phone signal jammer is a trustworthy business, as you inquired. It appears that some reviews are untrustworthy. I have tangible proof to support my statement.

Security forces are utilizing technology originally intended to prevent eavesdropping and thwart phone-triggered bombings to block ringing cell phones.

The reporters were the ones who first became aware of the situation. While they were engaged in reporting on the extravagant weddings of celebrities, they discovered that their cell phones were not functioning at Sacred Heart. Upon questioning the priest about this issue, they learned that Israeli counterintelligence was the cause of the disruption.

In Monterrey, four churches have inconspicuously integrated Israeli-made cell phone blocker, which are compact and resemble paperbacks, amidst their collection of religious artwork featuring the Madonna and statues of saints.

The loud and colorful ringing of cell phones is increasingly being stopped in places like religious sanctuaries, India’s parliament, Tokyo theaters, and commuter trains, thanks to devices that were originally developed to assist security forces in preventing eavesdropping and stopping phone-triggered bombings.

Jammers were put in place in the Indian parliament as a response to politicians consistently ignoring calls to power off their cell phones, causing disruptions in legislative proceedings.

After uncovering instances of exam cheating through text messaging or photographing test papers, Italian universities decided to introduce blockers as a preventive measure.

After being imported as a personal favor for a priest, the devices from Netline Communications Technologies Ltd., a Tel Aviv-based company, are now being used by the four Roman Catholic Churches in this northern city.

The Rev. Juan Jose Martinez, a spokesperson for the archdiocese, highlighted the fact that there are still many people who do not grasp the concept that attending Mass means partaking in a sacred moment with God. Regrettably, the utilization of these small devices became an inevitable choice.

Each unit was purchased for approximately $2,000, and they possess the ability to be remotely activated and emit radio frequencies at a low level. Their purpose is to disrupt cell phone signals within a radius of 100 feet.

Cell phone users may receive a notification on their devices stating that there is “no service” or that the “signal is not available.”

Wedding bells

Monterrey’s Sacred Heart church, a baroque temple favored by Mexico’s elite for weddings, had their blockers obtained by church officials two years ago.

The parish clerk, Bulmaro Carranza, noted that at weddings, cell phones would ring every five minutes without fail. This created a troublesome situation, as there were occasions when even the groom would overlook turning off his cell phone.

Unnoticed for an extended period, the devices only came to attention when reporters, who were present at the weddings, started registering complaints regarding the persistent failure of their cell phones.

Carranza stated that in light of the signal blocker becoming known to the public, priests from different regions in Mexico have been phoning him to learn how to acquire them.

At Sacred Heart, a device positioned at the entrance of the church and another near the altar are activated just before each Mass. Nonetheless, the priests consistently urge parishioners to silence their phones before the services commence, with the expectation that proper cell phone etiquette will eventually be embraced.

Martinez noted that The Rosario, San Juan Bosco, and Our Lady Queen of the Angels, as well as other Monterrey churches with the devices, attract wealthier parishioners.

Martinez pointed out that while the cell phone is indispensable for many, individuals should still uphold good manners and demonstrate respect for sacred places.

Margarita Escobedo, a practicing Catholic who diligently attends church services at least twice a week and actively contributes to the San Genaro church as a volunteer, openly embraces the idea of introducing jammers in her parish. Recognizing the increasing nuisance caused by cell phones, she believes that implementing jammers would help restore the sanctity and focus during religious gatherings.

It was mentioned by Escobedo that those who bring cell phones to church are not fully devoted to God. He highlighted the disturbance caused by unexpected noises such as birds chirping or techno music during prayer.