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接收单元,我们采用的原理和调频收音机原理一样。图3为接收电路,以专用调频接收模块IC1 TDA7021T为核心,经解调后的音频信号从脚输出,送到IC2 LM38...
接收单元,我们采用的原理和调频收音机原理一样。图3为接收电路,以专用调频接收模块IC1 TDA7021T为核心,经解调后的音频信号从脚输出,送到IC2 LM386作功率放大,推动耳机发声。三极管BG9018等组成高频放大级,以提高接收灵敏度。调节可调电容器C23可以改变接收频率,使其对准发射机的发射频率。-Receiving unit, we have adopted the principle and the principle of like FM radio. Figure 3 for the receiver circuit to a dedicated IC1 TDA7021T FM receiver module as the core, after demodulation of the audio signal after the output from the feet, to make IC2 LM386 power amplifier, and promote sound headphones. BG9018 triode composed of high-frequency amplification level in order to improve receiver sensitivity. Conditioning adjustable capacitor C23 can change the receiver frequency so that it fired at the transmitter frequency.
- 2022-07-11 03:12:17下载
- 积分:1
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ModemXH是一个可以测试Modem厂家和型号的VB源程序
ModemXH是一个可以测试Modem厂家和型号的VB源程序-ModemXH is a test Modem manufacturers and models of VB source
- 2022-05-25 10:24:04下载
- 积分:1
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Visual C++ MFC编程实例,详细介绍了在vc环境下mfc的编程实例,具有很好的指导性。...
Visual C++ MFC编程实例,详细介绍了在vc环境下mfc的编程实例,具有很好的指导性。-Visual C++ MFC编程实例
- 2022-06-20 04:53:52下载
- 积分:1
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求算24点是一个极为有趣的大众智力游戏,深得许多人的喜欢。但你有没有遇到过求不出解的情况呢?是自己没有想出来还是确实无解?很难判断吧!有没有想过用电脑来求解呢。...
求算24点是一个极为有趣的大众智力游戏,深得许多人的喜欢。但你有没有遇到过求不出解的情况呢?是自己没有想出来还是确实无解?很难判断吧!有没有想过用电脑来求解呢。如果你有一点点VB的基础,那就让我们一起来看看该怎样用VB来求算24点吧。-calculating 24 is a very interesting public intellectual games, won many people like it. But you have never met before seeking solutions not happen is they did not come up with no solution or indeed is very difficult to judge! Have you ever thought of using computers to solve it. If you have a little bit of VB foundation, then let us look at how to use VB to calculate 24 spot.
- 2022-07-08 20:58:44下载
- 积分:1
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Visual Basic for beginner
Visual Basic for beginner
- 2022-08-10 22:09:31下载
- 积分:1
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" C++ university courses," Chapter 24 of all the source code. For the C...
《C++大学教程》第24章所有源代码。为光盘内容-" C++ university courses," Chapter 24 of all the source code. For the CD-ROM content
- 2022-01-26 01:46:56下载
- 积分:1
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VC++语法分析工具源代码附说明的文档
VC++语法分析工具源代码附说明的文档
-VC++ grammar analysis tool attached to the document source code
- 2022-04-16 12:07:39下载
- 积分:1
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英文单词拼写检查中的main函数
英文单词拼写检查中的main函数...
英文单词拼写检查中的main函数
英文单词拼写检查中的main函数-English word spelling checker s main function
- 2022-07-13 07:55:42下载
- 积分:1
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C#读取gps串口信息,可以实时读取gps模块定位信息
可以选取串口号,解析gps模块获取的坐标,并且实时显示获取的字符串信息,可以判断当前定位状态是否处于锁定状态。
- 2022-08-12 17:03:59下载
- 积分:1
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水平一般,不能和航空公司相比,呵呵,大家参考,欢迎指正...
水平一般,不能和航空公司相比,呵呵,大家参考,欢迎指正-It is in common level and there is a large distance between it and the right system in airline company.Haw-haw,it is only a referrence and welcome to comment.
- 2022-12-08 15:20:03下载
- 积分:1