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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.
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environment : windows98/2000/xp, Visula 6.0 C compiler through. The current mode...
环境:windows98/2000/xp,Visula C++6.0下编译通过.模型采用的目前非常流行的C/S架构,TCP/IP通信协议-environment : windows98/2000/xp, Visula 6.0 C compiler through. The current model is very popular C/S architecture, TCP/IP communication protocol
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U-boot1.2源码 arm的bootloader-U-boot1.2 source arm of the bootloader
- 2023-08-16 17:45:05下载
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of video capture and processing CMVision2.0
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- 2022-07-07 17:52:41下载
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Particle swarm optimization tool kit, including the dynamic environment of the o...
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三个候选人A、B、C,根据投票者在选票上对他们编号的填写顺序记分,
!!!刚才传的6.rar说明写错了,我再传一次...
三个候选人A、B、C,根据投票者在选票上对他们编号的填写顺序记分,
!!!刚才传的6.rar说明写错了,我再传一次-Three candidates A, B, C, according to voters on the ballot paper to fill in the order they numbered Points!!! Just Chuan 6.rar the wrong note, I send a
- 2022-09-30 05:20:02下载
- 积分:1
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CVS使用手册,教你如何方便地使用CVS软件
CVS使用手册,教你如何方便地使用CVS软件-CVS user manual, teach you how to easily use the CVS software
- 2022-11-28 14:40:04下载
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使用 UART 使用 pic16f877a
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- 2022-02-13 16:49:38下载
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卡通动漫联盟伪静态后台版,如发现程序无法正常使用请到官网下载最新版...
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- 2022-06-27 17:37:08下载
- 积分:1
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- 2023-06-01 02:55:02下载
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