Block Cell Phone Signals in Brazil – Frequencies to Cover

Brazil is a vast and diverse country, with a well-developed telecommunications network. The country's main mobile operators are Vivo, Claro, Tim and OI. For various reasons, you may need to block mobile phone signals in certain situations, without however considering the legal aspects. To do this, it is essential to understand the frequencies used by these operators.

Frequencies to be covered to block mobile phone signals:

In Brazil, mobile operators use different frequency bands for their services. Here are the main frequencies used by major operators:

Vivo:

• GSM strip: 900 MHz
• UMTS band (3G): 2100 MHz
• LTE band (4G): 700 MHz (B28), 1800 MHz (B3), 2600 MHz (B7)

Claro:

• GSM strip: 850 MHz
• UMTS band (3G): 850 MHz, 2100 MHz
• LTE band (4G): 700 MHz (B28), 1800 MHz (B3), 2600 MHz (B7)

TIM:

• GSM strip: 900 MHz
• UMTS band (3G): 850 MHz, 2100 MHz
• LTE band (4G): 700 MHz (B28), 1800 MHz (B3), 2600 MHz (B7)

OI:

• GSM strip: 1800 MHz
• UMTS band (3G): 2100 MHz
• LTE band (4G): 700 MHz (B28), 1800 MHz (B3), 2600 MHz (B7)

To effectively block mobile phone signals in Brazil, you should consider covering the frequencies mentioned above, in particular LTE (4G) strips used by operators. This will guarantee an effective blocking of mobile communications in the targeted area.