A uhf sensor is designed and fabricated, which mostly consists of antenna, uhf amplifier, high pass filter, and broadband wave detector.
通过与大华无线电厂合作,研制了超高频传感器,其主要由天线、超高频放大器、高通滤波器、宽带检波器等组成。
470 to 890 MHz for UHF Channels 14 through 83.
470到890mhz,用于UHF频道14到83。
In March 2010, the Navy submitted a UHF augmentation plan to Congress.
2010年3月,美国海军向国会提交一份超高频扩充计划。
Any aerial that can pick up UHF and VHF signals will receive digital television signals.
任何能捕捉到UHF和VHF信号的天线,都能接收数字电视信号。
When UHF broadcasting came along, empty “guard bands” were added to each channel for the same reason.
而当超高频广播出现时,每个频道基于同样的理由,也加上了空闲的“保护频带”。
Si UHF mixer diodes are used in all-channel TV sets.
硅UHF混频二极管用于全频道电视机。
UHF partial discharge detection system for GIS is developed.
研制了一套GIS中局部放电的特高频检测系统。
In mountainous areas, UHF radio may not be a viable alternative.
在山区,UHF电波可能不是一个可行的替代办法。
The plane has UHF and VHF radios plus an instrument landing system.
飞机配备了UHF和VHF无线电以及仪表降落系统。
The plane has UHF and VHF radios plus an instrument landing system.
飞机配备了UHF和VHF无线电以及仪表降落系统。
The calibration device for transformer UHF PD detection is introduced.
介绍了一套变压器局部放电超高频检测校正装置。
A novel UHF electronic ballast with dimming feature is proposed in this paper.
本文提出了一种新型可调光的超高频电子镇流器。
The test result of using the UHF testing system proves that this method is practicable.
研制的超高频法测试系统的试验结果证明此方法是可行的。
The primary exploration of large power transformer PD UHF detection method is discussed.
针对大型电力变压器局部放电超高频检测法进行了初探性的研究。
A new printed UHF antenna with omnidirectional radiation and broad band is discussed in this paper.
本文讨论了一种新型全向宽频带超短波印刷天线。
Based on the analysis, two kinds of anti-metal UHF RFID tag were designed for practical application.
然后针对实际应用的需求设计了两种超高频RFID抗金属标签天线。
When UHF broadcasting came along, empty "guard bands" were added to each channel for the same reason.
而当超高频广播出现时,每个频道基于同样的理由,也加上了空闲的“保护频带”。
This system works on UHF frequency brand, use PLL circuit. There are 256 frequencies for your option.
本机工作在UHF频率,采用PLL锁相环电路,预设256个可选择使用频率。
Based on which, a new method for estimating the PD pulse waveform by using its UHF signals is presented.
在此基础上提出了利用UHF信号估算油中尖-板电极局部放电脉冲电流波形的方法。
Experimental results show that the system can acquire and extract the UHF partial discharge signal in GIS.
实验结果表明,该系统能够采集到GIS中局部放电产生的特高频信号。
A commercially hosted UHF payload was one of the solutions described to mitigate the shortfall in UHF capability.
商用超高频载荷是其中解决方案之一,以减轻超高频的能力不足问题。
But, repeatedly, the communicator radioed, "Columbia, Houston, UHF comm check," as if he might still hear a reply.
不过通讯员依旧用无线电重复着,“哥伦比亚号,这里是休斯顿,超高频通讯检查,”以为他仍能收到回复。
These frequencies, along with other UHF and VHF parts of the spectrum used by analogue television, are now to be vacated.
这些频率,连同模拟电视使用的其他UHF和VHF频谱,现在都空出来了。
Each MUOS satellite features two payloads — a wideband code division multiple access (WCDMA) payload and a legacy UHF payload.
每个MUOS卫星配备了两个有效载荷——宽频码分多址(WCDMA)有效载荷和传统UHF有效载荷。
This paper introduces the construction of a high maneuverability, high reliability and high power solid-state radar transmitter at UHF band.
介绍了一种UHF频段高机动、高可靠的高功率固态雷达发射机的组成情况。
The experimental results show that this type antenna can meet the need of PD UHF measure, and the system can detect and locate conveniently PD in GIS.
实验结果表明,设计的天线满足GIS局部放电超高频检测要求,建立的系统可以方便地实现GIS局部放电检测和局部放电源的定位。
The study on discharge characteristics between in oil and in air with UHF methods has been carried out in laboratory under various discharging models.
针对不同放电模型采用特高频检测技术开展了油中与空气中放电特性的研究。
The study on discharge characteristics between in oil and in air with UHF methods has been carried out in laboratory under various discharging models.
针对不同放电模型采用特高频检测技术开展了油中与空气中放电特性的研究。
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