无线电频段

Communications functions range from basic ultrahigh/very high frequency to single channel ground and airborne radio system and Have Quick. The aircraft also supports several datalinks for communications and situational awareness such as Link 16 and a specialized multi-array datalink for stealthy communications between aircraft.

通信系统功能有甚高频/超高频频段通信，单通道空地无线电系统以及"Have Quick"跳频通信。F-35还支持多种通信和战场感知数据链，例如16号链以及一条用于战机间保密通信的多阵列数据链。

I also know the controlling of robotization because I had done it ten years ago, and I know amateurish wireless communication of 27M frequency.

14 ；我十多年前曾经做过自动化控制的工作，对这方面有一定的了解。也曾玩过27M频段业余无线电通信。

According this problem, firstly this paper delves into radio circumstance of the band, frequency selecting rule and spectral density estimation. Basing on this research, this paper puts forward a frequency selection scheme basing on estimating spectral density of channels in 2.4GHz~2.5GHz.

针对此问题，本文首先深入研究了该频段无线电环境、选频准则及功率谱估计理论，在此基础上提出一种基于信道功率谱估计的选频方案。

Being associated with three research projects, this dissertation makes deeply insight into the fast and accurate analysis, optimal design and manufacture of HF and VHF/UHF broadband omnidirectional miniature loaded wire antennas, loaded helical antennas and multiple-tuned VLF inverted L valley span antennas.

本文密切结合&十五&国防预研项目&软件无线电天线&和&宽带小型化天线&以及国防重点项目&某长波台发信天线电气参数分析与设计&等项目，研究了短波和超短波频段上的宽频带加载线天线、加载螺旋天线和超长波倒L形多路调谐山谷天线的快速精确分析、优化设计以及样机制作。

See also CB and Citizens Band Radio Service.

参见 CB以及民用频段无线电服务。

For over 40 years, Dragan has published articles with different original constructions of power amplifiers, low noise preamplifantennas for HF, VHF, UHF and SHF bands.

四十年来，Dragan 出版了多版本的 HF，VHF，和 SHF 频段的功率放大器，低噪音前置放大器的著作。1964 年他获得业余无线电许可证。

For over 40 years, Dragan has published articles with different original constructions of power amplifiers, low noise preamplifiers, antennas for HF, VHF, UHF and SHF bands.

四十年来，Dragan 出版了多版本的 HF，VHF，和 SHF 频段的功率放大器，低噪音前置放大器的著作。1964 年他获得业余无线电许可证。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。