ground wave वाक्य
उदाहरण वाक्य
मोबाइल
- But I think that digital ground wave broadcasting will become a reality only after we have digital satellite programming.
- Everything from seismic signals, radiation, ground wave patterns, electromagnetic pulse, and acoustic measurements were studied at Gnome under Vela Uniform.
- Since the ground is not a perfect electrical conductor, ground waves are attenuated as they follow the earth s surface.
- Conductivity of the surface affects the propagation of ground waves, with more conductive surfaces such as sea water providing better propagation.
- The antenna system was designed to produce a ground wave intended to prevent interference with distant transmitters on the same frequency.
- Typically, what is referred to as a " ground wave " radio signal is made up of a number of constituent waves.
- The ground wave and the first hop ( or sky ) wave reflected at the ionospheric D layer interfere with each other.
- For line-of-sight communications or ground wave propagation, horizontally or vertically polarized transmissions generally remain in about the same polarization state at the receiving location.
- As an example, under from the transmitter in Mainflingen the expected signal strength of the ground wave is e " 1 mV / m.
- The song " What's Happening ( tnj?4��?| �t?| ?) took the first rank on the ground wave in Korea, May, 2013.
- To understand how that can happen you need to know that the main way that AM radio signals travel is by ground wave, literally hugging the earth.
- The last interference minimum on the ground ( z = 0 ) between the ground wave and the first sky wave is at a horizontal distance of
- A : The so-called action program, or planning for digital ground wave broadcasting, could be completed in four to five years, ahead of the scheduled completion in 2010.
- HF communications are in the 2-30 MHz band, which provides Beyond Line-Of-Sight ( BLOS ) communication ( HF Sky Wave or HF Ground Wave ) optimized for transmission up to.
- The result was a signal that offered a daytime ground wave range of 2, 250 miles, nighttime ground wave of 1, 650 miles and skywaves out to 3, 000 miles.
- The result was a signal that offered a daytime ground wave range of 2, 250 miles, nighttime ground wave of 1, 650 miles and skywaves out to 3, 000 miles.
- The frequency modulation method exploits the fact that there is a path difference between the ground wave and the reflected wave, meaning they travel different distances from sender to receiver.
- In contrast to line-of-sight propagation, at low frequency ( below approximately 3 MHz ) due to diffraction radio waves can travel as ground waves, which follow the contour of the Earth.
- At distances that are typically towards the edge of the ground wave coverage area, some sky-wave signal may also be present, especially at night when the D layer attenuation is reduced.
- Most broadcast antennas use either ground wave propagation ( a slight refraction towards the ground ) to reach their nearby listeners, and thus want a low angle in the vertical plane.
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