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[Books] BH1417_www.ic37.com DL : 0: 采用BH1417调频广播发射机是一种新型的广播信号发射机，特点是 (1) 采用了频率合成，频率稳定，可调整范围宽。 (2) 采用了红外线遥控调整频率方便。 (3) 采用了高性能的立体声专用芯片，音质好，分离度高。 (4) 采用了宽带功放，整机的频率范围 30MHz---450MHz. 用途：广泛应用于学校的英语听力发射，和学校试验用信号源，也可用于组建大型会场的广播系统。设计要求采用单片机为控制平台能在88—108MHz范围内改变发射频率，并显示发射机的发射载波频率。发生距离不少于1公里。 -BH1417 FM radio transmitter used is a new kind of radio signal transmitter, characterized by (1) adopted a frequency synthesizer, frequency stability and adjustable range. (2) adjust the frequency of the infrared remote control convenience. (3) use of high-performance ASIC stereo, good sound quality, separation is high. (4) use of broadband power amplifier, whole frequency range of 30MHz-450MHz. Usage: widely used in school English Listening fired, and school test signal source, can also be used for the formation of large-scale broadcasting system in the venue. Design requirements for the control of the use of single-chip platform in the 88-108MHz frequency range of changes in the launch and display the launch carrier frequency transmitter. The occurrence of not less than 1 km distance.
Date : 2025-12-16 Size : 194kb User : 王曦帆