The ionosphere has nothing to do with radioactivity, and there is nothing in nature that is called a "radio active wave."Because the ionosphere contains electrical charges, it is able to reflect radio waves.
Any Amplitude Modulated radio signal will penetrate the ionosphere if its carrier frequency is high enough. Signals in the commercial AM broadcast band, with frequencies between 530 and 1700 KHz, aren't high enough. Most of their energy reflects from the ionosphere.
Detects disturbances in the ionosphere
ionosphere
Ionosphere
these ionised particles,reflect the radio wave to earth back.depending on the density of the ionosphere,at the time determins the amound of radio waves.this will affect clear reception.the height of the ionosphere involves reflecting angle,which gives long length hops.in this way long distance communications are affect by ionosphere.
Eletromagnetic radiation with a frequency below the ionosphere's plasma frequency will generally be reflected. The specific frequency depends on the density of ionospheric plasma which can vary at different altitudes, but also different geomagnetic latitudes and from day to night. For a typical daytime mid-latitude ionosphere, the most dense part of the ionosphere, (the "F" region), will reflect radio frequencies up to ~2.8Mhz (assuming an electron density of 1e11 m-3).
The Ionosphere
The Ionosphere.
The thermosphere contains the ionosphere. The ionosphere is the layer that is ionized by the solor radiation.
J. N. Rowe has written: 'An investigation of the effects of solar flares and stratospheric warmings on the lower ionosphere' -- subject(s): D region, Ionospheric electron density, Lower ionosphere, Solar flares, Stratosphere
ionosphere
the ionosphere is important is the it is in the thermosphere
Electric currents in the ionosphere
The ionosphere gets its name from it being charged with ions. It is called the ionosphere because it is in the shape of a sphere.
the ionosphere is important is the it is in the thermosphere
the ionosphere.