When the phone jammer is active, most phones will not display network signals; when the GSM jammer is off, the phone will also be active. Mobile phones use unique frequencies for talking and listening. Most cell phone jammers block one of these two frequencies, thereby indirectly blocking these two frequencies. Mobile phone jammers work in the same way as jammers that block radio communications. They work by interrupting the frequency from the mobile phone to the base station or from the base station to the mobile phone.
Operating a field service business faces a series of challenges. Ensuring driver safety, reducing fuel costs, managing on-time delivery and tracking assets are just a few of the concerns of most managers. Although GPS-based tracking devices improve the efficiency of field service managers by improving efficiency, the technology itself is not immune. What do pilots lose air navigation signals, sea navigation in incorrect locations, and couriers who avoid tolls have in common? All three situations involve a GPS Jammers that tampered with or blocked the GPS signal.
This myth is far from the truth. GPS will affect our daily life with the advent of new cars, and GPS functions have been installed on mobile devices. GPS signal jammers are very common, and you can find them on eBay for less than $50. Worst of all, anyone can buy and install these jammers, putting GPS-based navigation systems (such as those built into the iPhone) at risk. For example, suppose you are using Google Maps to find a specific destination. The signal interference generated by GPS jammers may take you to another destination or even close your application completely. The fact that GPS jammers are easy to use further increases their potential dangers. The cell phone jammer batteries can be purchased and sold by means of they must be shipped to residents of the United States and other countries, even if they are illegal online sites. Using a cell phone jammer may result in a fine of $20,000 or less. However, if criminals can buy guns without a license, it is not difficult to put their hands on the mobile phone jammer.