What frequency band do you need to cover to block cell phone signal in El Salvador?

In Salvador, there are three main mobile operators who provide communication services to the population. Here are the names of the operators and the frequencies they use:

Tigo El Salvador:

Tigo El Salvador is one of the country's main mobile operators. He uses the following frequency bands:

• GSM 850/900 MHz
• UMTS 850/900/1900/2100 MHz
• LTE 700/850/1700/1900/2600 MHZ

Claro El Salvador:

Claro is another well-established mobile telephony operator in Salvador. He uses the following frequency bands:

• GSM 850/900 MHz
• UMTS 850/1900 MHz
• LTE 700/1700/1900/2600 MHZ

Digicel El Salvador:

Digicel is also a popular mobile telephony operator in the country. He uses the following frequency bands:

• GSM 850/1900 MHz
• UMTS 850/1900 MHz
• LTE 700/1900/2600 MHZ

Frequency strip to cover to block the signal of mobile phones:

To effectively block the signal of mobile phones in Salvador, it is essential to cover the frequency bands used by mobile operators in the country. Frequency bands commonly used by operators are:

• GSM: 850 MHz and 900 MHz
• UMTS: 850 MHz, 900 MHz, 1900 MHz and 2100 MHz
• LTE: 700 MHz, 850 MHz, 1700 MHz, 1900 MHz and 2600 MHz

It is recommended to use a jamming device capable of covering these frequency bands to effectively block the signal of mobile phones in Salvador. However, it is important to note that the use of jamming devices may be regulated and requires legal authorization in many countries.