Why aren't signal jammers installed on planes?

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Topsignaljammer  2022.7

A:Although the signal jammer is called a signal "blocker", it is essentially a signal "jammer" and a high-power jammer. Mobile phones cannot be used on planes to prevent mobile phone signals from interfering with aircraft communications. Installing a "blocker" is to install a huge source of interference. So, there will be no such device on the plane!