short waves

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short waves, radio waves whose frequencies range from about 3 to 25 megahertz (Mhz), corresponding roughly to the high-frequency band (see radio frequency radio frequency, range of electromagnetic waves with a frequency or wavelength suitable for utilization in radio communication. Some of these waves serve as carriers of the lower-frequency audio waves; others are modulated by video or digital information.
..... Click the link for more information. ). When they impinge on certain layers of the ionosphere, short waves are largely reflected back toward the earth. By one or more reflections between the earth and the ionosphere, a short-wave radio signal can be received at long distances from the transmitter.

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No references found			Short waves are like melt fracture but occur inside the film and may appear as uniform haze or as visible waves. Melt fracture or Interfacial instability? Different IIIs needs ... by Waller, Paul / Plastics Technology There will be no change in the previously announced certification schedule of three major certification waves and nine short waves for 2003. CableLabs/YAS Announce Management Transition Plan for CableLabs' ... by Business Wire			Short Hoggers of Whittinghame Short Hundredweight short ink short interspersed elements short leg Short Message Service short nipple short oil Short Parliament short radius short residuum short round short run short shipment short shot short shrift short stop Short Story short supply short takeoff and landing short takeoff and landing aircraft short ton short varnish short wave short waveguide isolator short waves short word short working plaster Short, Bobby Short, Walter Campbell short-baseline system short-circuit impedance short-circuit transition short-circuiting transfer short-contact switch short-crested wave short-day response Short-Delay Blasting short-delay detonator short-distance navigation Short-Eared Owl short-gate gain short-grained short-haul short-haul convoy short-length short-line seeking short-long flashing light short-oil alkyd short-oil varnish short-path principle			Short URL short varnish Short Vehicle Integrated Management System short version Short Vertical Antenna SHOrt Voltage Elevation short waist short wave short wave short wave Short Wave Aerostat-Mounted Imager short wave diathermy short wave diathermy short wave diathermy short wave diathermy Short Wave Infrared Short Wave Infrared Radiometer Short Wave Intensive Operating Period Short Wave Listener Short Wave Listeners Club Saar Short wave radio Short wave transmitter Short wave transmitter short waveguide isolator Short Wavelength Short Wavelength Adaptive Technology Short Wavelength Infrared Short Wavelength Pass Filter Short Wavelength Primary/Prime Short Wavelength Spectrometer short waves Short Web Language Short Wheel Base short whist Short Wing Piper Club short with Short Within Memory Cell short word short working plaster Short's aster Short's Brewing Company Short, Bobby Short, Walter Campbell short- pointing short-acting short-acting Short-Acting Bronchodilator short-acting insulin short-acting insulin short-acting insulin Short-Acting Neuronal Refractivity Short-Action Magnum Short-and-Long-arm short-arm cast short-baseline system Short-beaked Short-beaked common dolphin Short-beaked common dolphin Short-beaked Echidna Short-beaked Echidna

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