Wireless Transceiver System Based on BH1417F Transmitter Module and MC3362P Receiver Module for Mixed Transmission of Digital and Analog Signals

Xue Yao ； Gang Lu

《World Scientific Research Journal》 8卷5期 (2022/05) Pp. 505-511

https://doi.org/10.6911/WSRJ.202205_8(5).0062

摘要

In this paper, a wireless transceiver system based on BH1417F transmitter module and MC3362P receiver module for mixed transmission of digital and analog signals is designed. In this system, the audio signal collected from the signal generator end, the digital signal collected from the digital input and the coding end, are processed by the combining circuit, and the obtained composite signal modulates the high‐frequency carrier and transmits it through the antenna; receiving The terminal receives the modulated signal through the antenna, the signal is amplified by the high‐frequency small signal amplifying circuit, and then the two signals of the sender are restored by the demodulation circuit, which are displayed by a digital tube and an oscilloscope respectively. This design makes full use of the existing equipment, so that the working center frequency is stable at about 25MHz, the channel bandwidth is less than 25kHZ, and the propagation distance is greater than 1m. The settings can be selected from no less than 3 carrier frequencies, of which the primary oscillator of the receiver is 36.6MHz. The two local oscillators are around 10.25MHz, and the waveform output by the demodulation has no obvious distortion. While receiving the analog signal as usual, it can also receive the high‐speed digital information attached to the carrier.

關鍵字

Wireless communication system ； Modulation ； Detection ； BH1417F ； MC3362P

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