Should mobile phone jammers choose low-power or high-power jammers?
The main purpose of the cell phone signal blocker is to block the mobile phone signals of the four major operators, including 2G, 3G, 4G, and 5G signals. The frequency bands covered include at least: 700MHz, 800MHz, 900MHz, 1800MHz, 1900MHz, 2100MHz, 2300MHz, 2600MHz, 3400MHz, 3500MHz, 4800MHz, etc. In addition, it also includes WiFI2.4G (including Bluetooth) and WiFI5.8G using mobile phones. There are many customer feedbacks: after turning on the mobile phone signal jammer in some places of use, they always feel that the shielding distance to the mobile phone is too short, complaining that the mobile phone signal shielding range is too small, so they forwarded it to us, they hoped that the power of the cell phone signal jammer would be more powerful. strong to greatly increase the signal shielding range.
So, is it that the greater the transmit power of the mobile phone signal jammer, the greater the signal shielding distance, and the better the shielding effect? In theory, it does for existing regular job types. But the problem is that the shielding signal sent by the mobile phone signal jammer is of course a radio frequency wireless signal, and the increase in the transmission power of the radio frequency wireless signal is by no means a simple update of several power amplifier devices. To increase the transmission power, it is necessary to choose a power amplifier with a higher power output. , and design a power amplifier circuit for it, and even to increase the power, it needs to be promoted in stages. As for the cost of RF devices, as the power load increases, the cost of the device increases by a factor of N.
At the same time, with the increase of power, the heat dissipation of the mobile phone signal isolator itself needs to be redesigned, and a larger radiator and auxiliary measures for ventilation and heat dissipation are required, which will lead to an increase in the volume and the weight of the device. Of course, there are also cost increases.
In fact, if you want to improve the shielding effect of the mobile phone signal jammer, there is a relatively simple, fast and low-cost solution, that is to choose an antenna with a higher gain. Because the shielded signal of the mobile phone signal jammer must be transmitted through the antenna after all. For example, the original antenna had only 2dB of gain. When the gain value is increased by 3 dB, it is equivalent to doubling the transmit power. This method is actually very practical. Customers who want to double the power quickly can now use it and replace it with a set of high-gain antennas, which can quickly and greatly improve the shielding effect of the mobile phone signal jammer!