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Georgia's attorney general wants a federal agency to lift its ban on mobile signal jammer that bars state officials from using the devices to block contraband cell phones in jails and prisons.

Detecting whether a cell phone jammer is being used can be challenging, but there are several signs and methods you can use to identify potential jamming activity:

Signs of Cell Phone Jamming

1. Sudden Signal Loss: If multiple cell phones in the same area suddenly lose their signal and cannot connect to the network, this could indicate the presence of a jammer.
2. Poor Call Quality: Frequent call drops, inability to make or receive calls, or severe degradation in call quality in an area where you usually have good reception can be a sign of jamming.
3. Interrupted Data Services: Slow or nonfunctional data services (such as internet browsing, messaging apps, and email) in areas where they typically work well.
4. No WiFi Connectivity: If WiFi networks are also affected and users are unable to connect, this could be due to a jammer targeting multiple frequencies.
5. Consistent Pattern: If the signal issues occur at specific times or locations consistently, it may suggest intentional jamming.

Wi-Fi blockers and jammers are a notable topic in news reports about burglars in 2024, but is your smart home security in jeopardy?

NBC10 Investigators tracked down a cell phone sniffer who specifically targeted people using their cell phones on SEPTA bus routes. Not only did he admit to doing it, he thought it was a good thing.

The man, who calls himself Jonathan, told NBC10 Investigators, "I guess I'm taking the law personally, and frankly, I'm proud of it."

Karyn Wall has lived in Lemon Grove for the past 20 years, and to her knowledge, her home has never been targeted by criminals. However, she recently learned how vulnerable her home is to would-be burglars.

“My husband and I feel very secure, but I know we may need to do something about the house, the interior, the lighting, etc.,” Wall said.

The National Telecommunications and Information Administration (NTIA) has released a report detailing the results of its micro-jamming technology test conducted on January 17, 2018, at Cumberland Federal Correctional Institution in Maryland.

Test data showed that the micro-jamming signal interfered with commercial wireless signals inside the cells, meaning that if cell phones were used inside the cells, they would not work. However, at 20 feet and 100 feet outside the cells, the micro-jammer signal did not interfere with commercial wireless signals.

To jam a 5G signal, an intelligent adversary can detect unencrypted synchronization signals to obtain the physical cell identity (PCI) and then launch a targeted cell phone jamming attack on the physical broadcast channel (PBCH). This intelligent jamming (PBCH-IJ) disrupts the master information block (MIB) decoding, leading to denial of services for users trying to access the PCI cell. The proposed method in the paper suggests detecting PBCH-IJ by analyzing the principal direction of PBCH demodulation reference signal space at the user side, as this direction is significantly impacted by PBCH-IJ under low mobility scenarios.

I was there in an exhibition yesterday. Most of the times, i was not able to use my cellphone data internet. But, i was able to make calls with the phone most of the times. Now, i have a doubt here. I happened to call a friend who was also to the same show, and he did say that he was not able to access the cellphone internet there. He said that they had used Network Jammers, though he was not certain about it.

NBC News reports that online retailers and drone technology companies are marketing RF jammers as drone deterrents or privacy tools, thereby circumventing laws that prohibit the sale of such devices in the United States.

The warning issued by the Federal Communications Commission (FCC) states that signal jamming devices can block emergency calls and pose a serious risk to public safety communications, while also interfering with other forms of everyday communications and air navigation systems.

As things stand, technology is eating into the fun of being a teenager, and Ford's MyKey and this device can ensure you're actually safe while driving. Seriously, the poorly named Key2SafeDriving is a great idea (at least in the eyes of parents), as it incorporates a cell phone jammer (sort of) into a key fob to block calls on the highway. Essentially, as soon as the "key" portion is popped out, the signal jammer activates, connecting to the phone via Bluetooth or RFID and forcing it into "driving mode." No jamming actually occurs; it's more like manually controlling the ringer. Anyone who calls/texts you while you're safely driving will receive an automated response informing them of the situation, though we're told a hands-free device is available. The University of Utah researchers hope to bring it to market through a private company within six months, "at a cost of less than $50 per key, plus a yet-to-be-determined monthly service fee."