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发射部分采用锁相环式频率合成器技术， MC145152和MC12022芯片组成锁相环，将载波频率精确锁定在35MHz，输出载波的稳定度达到4×10...
发射部分采用锁相环式频率合成器技术， MC145152和MC12022芯片组成锁相环，将载波频率精确锁定在35MHz，输出载波的稳定度达到4×10-5，准确度达到3×10-5，由变容二极管V149和集成压控振荡器芯片MC1648实现对载波的调频调制；末级功放选用三极管2SC1970，使其工作在丙类放大状态，提高了放大器的效率，输出功率达到设计要求。-Part of the launch phase-locked loop frequency synthesizer using technology, MC145152 and MC12022 PLL chips to lock in the exact carrier frequency 35MHz, the output carrier to achieve the stability of 4 × 10-5, reaching the accuracy of 3 × 10-5 by the varactor diode V149 and integration to achieve MC1648 chip VCO FM modulation on the carrier selection transistor amplifier at the end of class 2SC1970, to work in the C state to enlarge and improve the efficiency of the amplifier output power to meet the design requirements.
- 2022-08-18 16:37:11下载
- 积分：1
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Gaodengzhusxue_tongji6ban
其实编程的时候也要很多数学知识，所以学习好高数是必不可少的，这本题解包括知识摘要和大量习题题解，可快速吸收(In fact, when the programming will still take many mathematical knowledge, it is good to learn a high number is essential, including knowledge of this problem solution Problem title abstracts and a large number of solutions, can quickly absorb)
- 2009-09-15 11:01:34下载
- 积分：1
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幻灯片 幻灯片 幻灯片 幻灯片
幻灯片 幻灯片 幻灯片 幻灯片-slides s lides s lides s lides s lides s lides s lides
- 2023-08-31 21:00:03下载
- 积分：1
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motor_speed_fuzzy_simulink
fuzzy logic controller
- 2020-06-22 12:00:01下载
- 积分：1
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802.1x认证配置客户端
说明： 简单的802.1x认证配置客户端（自动获取所有网卡）(802.1x authentication)
- 2020-06-22 03:20:01下载
- 积分：1
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"工程师硬件使用手册"此书使你工作轻轻松松查询各种常用电子线路及电子元器件引脚符号!...
"工程师硬件使用手册"此书使你工作轻轻松松查询各种常用电子线路及电子元器件引脚符号!-"hardware engineers use manual," this book to make you work a light-hearted advice on various common electronic circuits and electronic devices yuan Symbol pieces pin!
- 2022-02-01 19:12:09下载
- 积分：1
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java 实现的焰火效果,效果不错,可能需要重新编译
java 实现的焰火效果,效果不错,可能需要重新编译-achieve the pyrotechnic effect, the effect is true, it may be necessary to recompile
- 2023-02-21 08:40:04下载
- 积分：1
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ToDoList1
说明： 超好用日历，比较完美！！！！！！！！！！(calendar; kalendar
compare; relatively; compare with; comparatively
perfect; perfection; flawless; consummate; finish)
- 2019-01-25 12:27:37下载
- 积分：1
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type names age categories to show animals
通过类型姓名年龄类别来显示动物-type names age categories to show animals
- 2022-05-18 12:31:05下载
- 积分：1
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《爱上Arduino》中文版
教程很不错,我虽然学的单片机是51，但是这个也适合自己摸索(It is good.Though I learn 51,it is suitable for us to do experience.)
- 2017-12-24 10:15:11下载
- 积分：1
