Cell phone signal jammers (cell phone jammers) are usually designed to block or interfere with cell phone signals in specific frequency bands. Different signal jammers for sale may have different band coverage, but here are some common cell phone signal bands:
GSM 900: Usually covers the frequency band 890 MHz to 915 MHz and is mainly used for 2G/3G mobile phone communications.
GSM 1800: Usually covers the frequency band 1710 MHz to 1785 MHz and is mainly used for 2G/3G mobile phone communications.
CDMA 800: Typically covers the frequency band 824 MHz to 894 MHz and is primarily used in CDMA networks.
CDMA 1900: Typically covers the frequency band 1850 MHz to 1990 MHz and is primarily used in CDMA networks.
WCDMA 2100: Typically covers the frequency band 1920 MHz to 2170 MHz and is primarily used for 3G mobile phone communications.
LTE 700: Typically covers the 704 MHz to 894 MHz frequency band and is primarily used for 4G/LTE mobile communications.
LTE 2600: Typically covers the 2500 MHz to 2690 MHz frequency band and is primarily used for 4G/LTE mobile communications.
5G NR (New Radio): Usually covers a similar frequency band range to LTE 2600, such as 3300 MHz to 3800 MHz, 24250 MHz to 29500 MHz, etc.
TETRA: Tetra is a dedicated radio communications system that typically covers the frequency band from 380 MHz to 400 MHz.
Wi-Fi: Commonly used frequency bands for Wi-Fi are 2.4 GHz and 5 GHz, but some cell phone jammers can cover specific Wi-Fi bands to interfere with Wi-Fi signals.
GPS: The GPS system operates in the L1 frequency band, approximately 1575.42 MHz.
GLONASS: GLONASS is a Russian global navigation satellite system that operates primarily in the frequency band 1602 MHz to 1615.5 MHz.
Galileo: Galileo is the EU's global pilot satellite system, operating mainly in the frequency bands 1164 MHz to 1215 MHz and 1560 MHz to 1610 MHz.
It should be noted that the specific frequency bands will vary depending on factors such as regions, operators, and mobile phone network standards. Different regions and countries may use different mobile phone signal frequency bands. Therefore, the frequency band of the mobile phone signal jammer will be adjusted accordingly to suit local requirements and technical standards.