Latest Desktop Portable 100W 4G 5G GPS WiFi 2.4G 5.8G Frequency Cell Phone Jammer ZigBee is a wireless connection that works in 3 frequency bands: 2.4GHz (popular in the world), 868MHz (popular in Europe) and 915 MHz (popular in the United States). According to the signal frequency used by ZigBee, it can be concluded that the cell phone jammer will not interfere with the ZigBee signal. The signal frequency band used by the mobile phone signal jammer is 868MHz (popular in Europe) and 915 MHz closest to the frequency band used by ZigBee, but there is no frequency band that repeats the output signal of the mobile phone signal jammer. Everyone knows that the signal emitted by the mobile phone signal shielding device is in the same frequency band as the mobile phone signal. The lowest frequency band is 870-880 of CDMA, and the frequency band of GSM is 930-960. Now the 5G signal frequency of radio and television is 700MHz, and it does not repeat with the ZigBee signal. Yes, so the signal emitted by the cell phone jammer will not interfere with the ZigBee signal.
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If you want to know whether the mobile phone shielding device will interfere with the LoRa signal, you must first understand what the LoRa signal is. LoRa is a low-power local area network wireless standard created by semtech. LoRa (Long Range Radio) long-distance radio. Its biggest feature is that it can travel farther than other wireless methods under the same power consumption conditions, achieving low power consumption and Long-distance unification, it expands 3-5 times the distance of traditional wireless radio communication under the same power consumption. The working frequency band of LoRa includes 433, 868, 915MHz, etc. Because of the low frequency and excellent diffraction performance, it can transmit 2-5 kilometers in urban environments.
After understanding the LoRa signal, you can see that the frequencies used by the LoRa signal are 433, 868, 915MHz, and then we will understand the basic principle of the cell phone jammer. The signal emitted by the phone jammer is a white noise signal in the same frequency band as the mobile phone signal. In the field of use, the signal strength of this white noise is higher than that of the mobile phone signal, so the mobile phone blocker can block the mobile phone on the scene. On the contrary, the mobile phone blocker cannot block the mobile phone signal on the use site.
Jammer SignalIt can be seen that the frequency band of the signal transmitted by the mobile phone jammer does not overlap with the frequency band of the LoRa signal, so it will not cover the frequency band of the LoRa signal, so the signal emitted by the mobile phone jammer will not interfere with the LoRa signal.
Some customers will mention such a question, a 6-story teaching building, each floor is about 1500 square meters, whether 1-2 high-power cell phone jammer can achieve mobile phone signal interference in the entire teaching building. Topsignaljammer Technology Co., Ltd. does not recommend using high-power mobile phone signal jammers to shield a 6-story teaching building. This idea is understandable. After all, the number of jammers used is small and it is easy to install.
Latest Desktop Portable 100W 4G 5G GPS WiFi 2.4G 5.8G Frequency Cell Phone Jammer ZigBee is a wireless connection that works in 3 frequency bands: 2.4GHz (popular in the world), 868MHz (popular in Europe) and 915 MHz (popular in the United States). According to the signal frequency used by ZigBee, it can be concluded that the cell phone jammer will not interfere with the ZigBee signal. The signal frequency band used by the mobile phone signal jammer is 868MHz (popular in Europe) and 915 MHz closest to the frequency band used by ZigBee, but there is no frequency band that repeats the output signal of the mobile phone signal jammer. Everyone knows that the signal emitted by the mobile phone signal shielding device is in the same frequency band as the mobile phone signal. The lowest frequency band is 870-880 of CDMA, and the frequency band of GSM is 930-960. Now the 5G signal frequency of radio and television is 700MHz, and it does not repeat with the ZigBee signal. Yes, so the signal emitted by the cell phone jammer will not interfere with the ZigBee signal.
If you want to know whether the mobile phone shielding device will interfere with the LoRa signal, you must first understand what the LoRa signal is. LoRa is a low-power local area network wireless standard created by semtech. LoRa (Long Range Radio) long-distance radio. Its biggest feature is that it can travel farther than other wireless methods under the same power consumption conditions, achieving low power consumption and Long-distance unification, it expands 3-5 times the distance of traditional wireless radio communication under the same power consumption. The working frequency band of LoRa includes 433, 868, 915MHz, etc. Because of the low frequency and excellent diffraction performance, it can transmit 2-5 kilometers in urban environments.
After understanding the LoRa signal, you can see that the frequencies used by the LoRa signal are 433, 868, 915MHz, and then we will understand the basic principle of the cell phone jammer. The signal emitted by the phone jammer is a white noise signal in the same frequency band as the mobile phone signal. In the field of use, the signal strength of this white noise is higher than that of the mobile phone signal, so the mobile phone blocker can block the mobile phone on the scene. On the contrary, the mobile phone blocker cannot block the mobile phone signal on the use site.
Jammer SignalIt can be seen that the frequency band of the signal transmitted by the mobile phone jammer does not overlap with the frequency band of the LoRa signal, so it will not cover the frequency band of the LoRa signal, so the signal emitted by the mobile phone jammer will not interfere with the LoRa signal.
Some customers will mention such a question, a 6-story teaching building, each floor is about 1500 square meters, whether 1-2 high-power cell phone jammer can achieve mobile phone signal interference in the entire teaching building. Topsignaljammer Technology Co., Ltd. does not recommend using high-power mobile phone signal jammers to shield a 6-story teaching building. This idea is understandable. After all, the number of jammers used is small and it is easy to install.