The state radio regulatory organ and the radio regulatory organs of localities shall assign radio frequencies to radio stations, under their respective terms of reference. The appropriate ministries or commissions under the State Council shall assign frequency bands and frequencies allotted to the sectors...
(redirected fromRadio frequencies) Thesaurus Medical Encyclopedia radio frequency n.Abbr.RF 1.The frequency of the waves transmitted by a specific radio station. 2.A frequency within the range at which radio waves are transmitted, conventionally from 3 hertz to 300 megahertz, immediately below the ...
[translate] ain the appropriate frequencies in the bands between 4 MHz and 27,5 MHz allocated in the Radio Regulations to the Maritime Mobile Service. 在适当的频率在带在无线电章程和27,5兆赫之间分配的4兆赫到海上机动服务。[translate]
Radio frequency bands spread in the range between 30 kHz and 300 GHz. Numerous applications exist for this diapason of electromagnetic spectrum.
A dielectric filter for passing a band of radio frequencies and rejecting other bands of frequenciesDEMURO DAVID MSOKOLA RAYMOND LMOUTRIE MICHAEL F.GORDON PHILLIP JGREEN STEVEN R
美 英 n.无线电波 网络无线电播音频段;音波;电子波 同义词 n. airwaves,frequencies,radio signals 英汉 网络释义 n. 1. 无线电波
The radio frequency spectrum includes the set of frequencies of the electromagnetic framework ranging from 30 Hz to 300 GHz. It is divided into several ranges, or bands, and given labels, such as low frequency (LF), medium frequency (MF) and high frequency (HF), for easier identification. ...
They found that the linear polarization of those FRBs tends to depolarize toward lower frequencies, which can be well described by a single parameter, namely rotation measure scatter. With FAST, a total of 1,652 independent bursts from a single repeating FRB source were detected, but all of ...
The VHF or very high frequency band within the overall ITU designations for the radio spectrum falls between 30 and 300 MHz, and has a wavelength between 10 and 1 metre wavelength.The bands are not as affected by the ionosphere, although at times the lower frequencies are. T...
In a communication system in which the second system utilizes radio waves of frequencies that the first system does not use temporally or locally among rad... 安藤 和明,関 宏之 被引量: 0发表: 2017年 COMMUNICATION TERMINAL DEVICE, COMMUNICATION CONTROL DEVICE, RADIO COMMUNICATION SYSTEM, AND RES...