无线电频段

It will also be necessary to free up radio spectrum now used for military and satellite communications.

同样地，也有必要开放目前用于军事和卫星通讯的无线电频段。

Software radio system is applicable to multiple frequency bands and it can change working mode flexibly. The system can interwork and is compatible with various equipment of different system and standard.

软件无线电系统适用于多个频段，可灵活地改变工作模式，能与不同体制和标准的各种设备互通和兼容。

Hi i am new wit ciphone c6a from monday and here in puerto rico the most of the red works with band 1900mhz and i was thinking that the phone doesnt work i explain friday to my seller that the phone is working in two band them she explain me that in settings radio band i select the band of my red it comes in default in two bands i dont try in that area because i think that is just for radio and the manual do not explain about it o from friday i have working the phone i really loved and now i made the last v3.3.20.0 and im more happy but now i dont kow how to change the skin for this one it looks very nice and i take too much time to traduce the language but the time is ok.

您好，我从周一的智慧和ciphone c6a在这里波多黎各与乐队1900MHz和i的最红的作品是以为手机doesn't工作中，我对我的解释星期五卖方手机在两个带他们，她解释我的工作选择设置的无线电频段I我的红色谈到拖欠两带我dont在这方面的尝试，因为我认为，只是电台和手册不对此解释，从周五我澳工作的手机，我是带真的爱，现在我作出了最后的v3.3.20.0和IM更开心，但现在我dont叩头如何改变这一个看上去很漂亮，我的皮肤花太多时间去谗的语言，但时间确定。

We have proposed and implemented a hybrid overlay/underlay cognitive radio to take advantage of both groups.

在基于Overlay的系统中，认知无线电用户检测未使用的频段并使用这些频段传输信息。

With the increasing lack of allocable spectrum and crowding of ISM (Industrial, Scientific and Medical) bands, the research and application of wireless sensor networks will face a major difficulty that acquire usable spectrum.

随着无线电授权频段的日益紧缺和ISM公用频段的日益拥挤，无线传感器网络的研究和应用不可避免地要解决获取频谱资源的难题。

With the rapid development of radio communication technology, and the correspondingly growing range and density of airwaves, wireless direction finding and location have been applied in more and more fields.

近年来，随着无线电通信技术的飞速发展和频段覆盖密度的增加，无线电测向和定位技术得到更深层次的应用。

Test your tube or other tube shaped materials you will use as an aerial winding former (not metal in the microwave for a minute (with a small glass of 11 September,2009 制作一个简单的 ISM 无线电频段的 2.425GHz 螺旋天线 water too) and make sure it doesn't get warm or hot.

检验你的管子或者你打算用来制作螺旋天线的其它原料的管子(非金属，放在微波炉里面几分钟。确保它不会变温或变热。

Also known as Children's Band, not because of Radio Shack's toy walkie talkies, but for the inane chatter that sometimes goes on in these channels.

也称为儿童频段，不是因为 Radio Shack 公司的玩具无线电对讲机使用了该频段，而是因为这些频道中有时会窜进无用的鸟叫声。

However, if you want to use the cheap production of SAT TV offset parabolas for the work on 13cm Ham band or WLAN frequencies; you have to try to construct the feed that matches existing parabolas.

无论如何，如果你想用一个低制作成本的卫星电视偏馈抛物面天线，工作于13厘米的业余无线电频段或者WLAN波段，你必须制作一个与现有抛物面反射器相配的馈源。

However, if you want to use the cheap production of SAT TV offset parabolas for the work on HAM or WLAN frequencies; you have to try to construct a feed that matches those parabolic reflectors.

无论如何，如果你想用一个低制作成本的卫星电视偏馈抛物面天线，工作于业余无线电频段或者WLAN波段，你必须制作一个与现有抛物面反射器相配的馈源。

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。