• Question: what is the importance of the ionsphere in broadcasting?

    Asked by 698bm1924 to Peter, Jonathan, Grace, Doris, David, Ann on 6 Jun 2019.
    • Photo: Grace Kago

      Grace Kago answered on 6 Jun 2019:

      The ionsphere is highly charged part of the atmosphere that reflects electromagnetic waves that are sent from radio transmitters here on earth, allowing for broadcasting to even happen!

    • Photo: Peter Macharia

      Peter Macharia answered on 6 Jun 2019:


      As Radio signals travel, they interact with objects and the media in which they travel and can be reflected, refracted or diffracted. As a result, the radio signals may change direction

      The ionosphere has a large concentration of free ions and electrons. It affects signals on the short wave radio bands where it reflects signals enabling these radio communications signals to be heard over vast distances

      see more here: https://www.electronics-notes.com/articles/antennas-propagation/ionospheric/ionosphere.php