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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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vb Loans have written before选号re
vb 自己编写双色球，先选号再抽奖，试试自己的运气-vb Loans have written before选号re-draw, try their luck
- 2022-08-03 09:45:26下载
- 积分：1
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非常好用的TC编译工具,文件不大,功能齐全.
非常好用的TC编译工具,文件不大,功能齐全.-very handy TC compiler tools, not documentation, complete functions.
- 2022-02-09 11:06:34下载
- 积分：1
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c++ achieved Snake game, it is the classic windows game.
c++实现的贪吃蛇游戏，很经典的windows游戏。-c++ achieved Snake game, it is the classic windows game.
- 2022-02-14 02:22:37下载
- 积分：1
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点跌代
jocobi式
将不规则的物理平面坐标转换为规则的计算平面坐标...
点跌代
jocobi式
将不规则的物理平面坐标转换为规则的计算平面坐标-or point-to-generation jocobi irregular physical Plane Coordinate transformation rules for the calculation of Plane Coordinate
- 2022-02-11 13:11:41下载
- 积分：1
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这是用来接受GPS数据的串口调试助手,通过他可以轻松实现GPS接受机和PC机的通信...
这是用来接受GPS数据的串口调试助手,通过他可以轻松实现GPS接受机和PC机的通信-It is used to receive GPS data, serial port debugging assistant, through the he can easily achieve the GPS receiver and PC-communication
- 2022-03-12 21:16:24下载
- 积分：1
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这是485芯片的USB通信源码，实现和电脑的通信
这是485芯片的USB通信源码，实现和电脑的通信-This is the 485 chip USB communication source to achieve and computer communications
- 2022-01-26 07:53:08下载
- 积分：1
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dos source
dos source
- 2022-01-24 15:35:54下载
- 积分：1
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自用java开发包。
包含mail,io,net,sort,security,http,chache等等内容。...
自用java开发包。
包含mail,io,net,sort,security,http,chache等等内容。-Occupied java Development Kit. Contains mail, io, net, sort, security, http, chache etc. content.
- 2022-05-26 09:52:05下载
- 积分：1
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拼图游戏，可以自己改换照片。放入任意自己想用的照片，程序可以分割放置，让玩家拼起来...
拼图游戏，可以自己改换照片。放入任意自己想用的照片，程序可以分割放置，让玩家拼起来-Jigsaw puzzle, you can change their own photos. Add any of the photos themselves would like to use, the program can be divided place, allows gamers to put together
- 2022-04-24 08:49:47下载
- 积分：1
