With the increasing maturity of wireless sensor technology and the extensive use of sensors in social development and construction, the demand for wireless transmission devices with small size, low power consumption, high stability and sensitivity is also increasing. This paper designs a wireless receiving circuit for sensor data based on the NRF403 transceiver chip. The receiving frequency is required to be 315MHZ, superheterodyne structure, and high receiving sensitivity, and the transmission distance is analyzed. Finally, the experimental data is measured by connecting the power amplifier and the MSP430 microcontroller to achieve the expected experimental results.
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