What frequency band should be blocked to neutralize cell phone signals in Germany?

In the current context where cell phones are omnipresent, it may sometimes be necessary to block telecommunications signals in certain specific situations. However, to find out which frequency band must be covered to neutralize cell phones in Germany, it is essential to understand network suppliers and the frequencies used in the country.

Main Network Operators in Germany

• Deutsche Telekom (Commercial brand: Telekom)
• Vodafone
• Telefonica Germany (Commercial brand: O2)

These three network operators dominate the telecommunications market in Germany and use different frequency bands for their mobile telephone services.

Frequencies Used by Network Operators in Germany

• Bande 1 (2100 MHz): used for 3G and 4G (LTE) by all operators.
• Bande 3 (1800 MHz): Used for 2G, 3G and 4G (LTE) by all operators.
• Bande 7 (2600 MHz): Used for 4G (LTE) mainly by Telekom and Vodafone.
• Band 8 (900 MHz): used for 2G, 3G and 4G (LTE) by all operators.
• 20 MHz band): used for 4G (LTE) mainly by Telekom and Vodafone.
• Band 28 (700 MHz): used for 4G (LTE) mainly by Telekom and Vodafone.

To effectively block cell phone signals in Germany, it is necessary to target the most commonly used frequency bands. In this case, it is recommended to block bands 1, 3, and 8, because these are used by all network operators for 2G, 3G and 4G (LTE). By blocking these bands, you will be able to effectively interrupt the connectivity of cell phones.