Power and shielding effect of mobile phone signal jammer
The main purpose of the mobile phone signal blocker is to block all the mobile phone signals of the four major operators, including 2G, 3G, 4G, 5G signals, and 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 that come with mobile phones. There are many customer feedbacks: after opening the mobile phone signal jammer in some places of use, they always feel that the shielding distance for the mobile phone is too short, and complain that the mobile phone signal shielding range is too small, so they put forward to us that they expect the cell phone jammer to be blocked. The power is bigger and stronger, in order to greatly increase the range of signal shielding.
So, is the transmission power of the mobile phone signal jammer larger, the greater the distance of its signal shielding, and the better the shielding effect? In theory for existing conventional types of work, it does. But the problem is: the shielding signal emitted by the mobile phone signal jammer is of course a radio frequency wireless signal, and the increase of the transmission power of the radio frequency wireless signal is by no means a simple update of a few power amplifier devices. To increase the transmit power, it is necessary to select a power amplifier with higher power output, and to 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 will increase by N times.
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 size and 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 a higher gain antenna. Because the shielded signal of the mobile phone signal jammer must be transmitted through the antenna after all. For example, the original antenna has only a gain of 2dB. When the gain value increases 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 use it now and replace it with a set of high-gain antennas, which can quickly greatly improve the shielding effect of the mobile phone signal jammer!
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