(1) These radio waves are coming at 15000 hertz.

(2) We directed radio waves around the globe.

(3) Radio waves are converted into electrical impulses.

(4) Sound waves, light waves, and radio waves have a certain frequency, or number of waves per second.

(5) When atmospheric conditions are right, radio waves bounce off the ionosphere and can be received many thousands of miles away.

(6) The idea behind radar was to send out radio waves and listen for echoes from enemy craft.

(7) Radio antennas receive radio waves and change them into electrical signals which are then turned into sound by the speakers.

(8) In electronics, a spiral is used to convert radio waves into electrical impulses.

(9) Due to the radio waves which this equipment gives off, an electrical current is induced into the water.

(10) The radio waves may come not only from transmitters but power supplies, motors or other electrical devices.

(11) The objectors said radio waves from the latter could cause explosions in the plant.

(12) Radio waves are electromagnetic waves with a very long wavelength, measurable in metres.

(13) The radio waves, magnetic field and computer technology combine to produce vivid images of the body's soft tissue.

(14) To introduce the fundamental characteristics of radio wave propagation.

(15) Radio wave: Wave from the portion of the electromagnetic spectrum at lower frequencies than microwaves.

(16) Propagation characteristic of UHF radio wave in rectangle , circle and arched tunnels is studied in this paper and the computing equation for attenuation constant is deduced.

(17) Realtime correction method is mainly used in radio wave refraction error correction to improve radio instrumentation accuracy in engineering applications.

(18) Application and experiment result of radio wave in roadways is introduced.

(19) Vast amounts of energy, from X-rays right through the spectrum down to radio waves, are escaping into space.

(20) He also experimented with photography, and did significant early work with X-rays from 1896, and with radio waves from 1897.

(21) The field theory progressed even more dramatically when, a few decades later, Hertz produced the radio waves predicted by the programme.

(22) He carried out experiments on the propagation of short and ultra-short radio waves, which were then thought to be unusable.

(23) By surrounding the radio with aluminum foil, we neutralize or block the radio waves.

(24) The cavity magnetron was simple, rugged and cheap, and produced short wavelength radio waves - microwaves.

(25) We have, in fact, as well as polluting our environment chemically also polluted it with radio waves of varying frequencies.

(26) In the empty rectangular straight tunnel, the influence to the propagation loss and RMS time delay spread of the radio wave is investigated.

(27) This paper proposes a formula fitting method for realtime correction of radio wave refraction errors for fast determination of the refraction error and improvement of radio instrumentation accuracy.

(28) We adopt differ method for corresponding differ accuracy in radio wave refractive errors correction.

(29) The Geographic Information System (GIS) can be incorporated into this procedure because most of the factors in radio wave propagation are geographic features.

(30) The various factors, such as noise, interference and fading, relating to radio wave propagation circuits, as well as the methods dealing with the factors are described.

(31) The single feed point produces a uniform traveling wave a desired frequency of the radio wave.

(32) Every mobile phone model is tested for radio wave emissions.

(33) Hopflied troposphere model and accurate troposphere model in radio wave refraction error modify in troposphereare gived.

(34) It has been proved that the conclusions and methods which can be used in radio wave propagation in spherical or cylindrical layered media are correct and feasible.

(35) Calculating the radio wave propagation circuits is one of the most important tasks in planning radio project for a mobile communication system.

(36) Based on the theory of wave propagation in random media, ionospheric effects on radio wave propagation and the feasibility of short-term forecasting of fading signals in ionosphere are examined.

(37) Both the quick - algorithm of radio wave reflation are presented in the paper.

(38) Instead, build a six - inch - high passive radio wave reflector from kitchen items , like an aluminum cookie sheet.

(39) Research on long range radio wave propagation plays a significant role in both mobile communication and electromagnetic environment.

(40) This paper presents an effective radio wave propagation prediction model by using radiation sources tree for microcellular environment. This model is based on ray-tracing and UTD.

(41) On the base of this channel , we analyze the characteristics of the radio wave small - scale fading.

(42) Coming through the sky like a satellite, like a radio wave, a meteorite.

(43) Finally according to the prediction model, the radio wave propagation loss performance in different conditions is analytically simulated.

(44) It is a useful try to construct the radio wave propagation predication model by the neural network.

(45) It was modified combined with their actual measured values that the environmental factors in radio wave propagation model equation matrix of underground complex environment.

(46) The highly sophisticated electronic methods rely on either light or radio wave propagation.

(47) Piezoelectric vibrator and its fabricating method, piezoelectric oscillator, electronic apparatus and radio wave timepiece.

(48) In this paper, the hybrid method is extended to 3-D problems. It will be helpful to obtain the radio wave propagation prediction in indoor real environments.

(49) An antenna device (20) includes an antenna (21) for receiving a time information radio wave, and an antenna support member (22).

(50) The signal will have attenuation and disturbance due to environmental factors in the process of VLF radio wave propagation,[http:///radio wave.html] which will impact the reliability of submarine communication.

(51) It is a new type long distance detector, which integrates the eradiation and receiving of radio wave, and the management, imaging and storage of signal.

(52) The radio wave propagation velocity is slowed and the ray producing bend but to the asymmetry of the atmospheric medium, The refraction error is produced.

(53) These results have broad applications in areas such as sea remote sensing, radio wave propagation and communication, and rough surface reconstruction.

(54) The refraction error is produced. The radio wave refraction correction for improving the accuracy of GPS navigation and location is necessary.

(55) The transmitter and receiver of the radio wave production is not completely understood.

(56) Its implications for understanding light, radio wave and modern science is tremendous.

(57) When analytical methods is used to study the radio wave propagation in the earth medium, only the reflection and transmission coefficients can be calculated in a simplified model.

(58) We elaborate the theory of localization algorithms, and implement the algorithm combined with radio wave propagation model in underground complex environment.

(59) The radio wave refraction correction for improving the accuracy of radio location in necessary.