a question
Today I accidentally saw that mobile phone radio frequency consumes a lot of power. I happened to see that there are ways to reduce mobile phone radio frequency. I searched on Baidu and the results are as follows: Mobile phone radio frequency is a functional module for receiving, transmitting and processing high-frequency radio waves. my country is based on ITU specifications. The frequency planning for 3G is as follows: China Mobile TD-SCDMA is 1880--1900MHz and 2010-2025MHz; China Telecom CDMA2000 is 1920-1935MHz and 2110-2125MHz; China Unicom WCDMA is 1940-1955MHz and 2130-2145MHz. Definition: The radio frequency part of a 3G mobile phone is composed of radio frequency receiving and radio frequency transmitting parts. Its main circuits include antenna, wireless switch, receiving filter, frequency synthesizer, high frequency amplification, receiving local oscillator, mixing, intermediate frequency, transmitting local oscillator, power amplifier control, power amplifier, etc. Introduction Radio waves need to be emitted, and the frequency must be high to a certain extent, such as the current GSM 900MHZ and 1800MHZ. The frequency of sound is very low, only 20HZ-20KHZ. Signals of this frequency cannot be transmitted directly. They must be modulated to high frequency, that is, radio frequency, before they can be transmitted. This is what radio frequency means. In order to achieve good communication between the mobile phone and the base station, the radio frequency emitted by the mobile phone must have sufficient strength. When the mobile phone is close to the base station, communication can be maintained with less power. When the mobile phone is far away from the base station, the mobile phone must increase its own transmit power to maintain good communication levels. Therefore, the radio frequency power in the mobile phone is automatically adjustable. Factors affecting the radio frequency of mobile phones 1. Integration of antennas. In order to have a compact appearance, today's mobile phones have many antennas integrated inside the mobile phone, which has an impact on radio frequency. In order to achieve good results, the mobile phone needs greater radio frequency power to maintain normal operation. This will have a certain impact on the human body. 2. The characteristics of the receiver also affect the radio frequency of mobile phones. Poor reception may allow users to hear low-quality sounds, causing users to lose base station information and cause calls to be disconnected. Poor receiver sensitivity is often caused by internal noise and spurious signals emitted by the transmitter being fed back into the receiver. Therefore, the CTIA standard requires that the receiver sensitivity be measured at the maximum transmit power of the transmitter. I would like to ask, if I reduce the radio frequency, will it affect the mobile phone signal?
