Thank you for joining VF Outlet's VIP Rewards! Every time you visit any VF Outlet store and make a purchase you will receive points towards earning a $10 reward. Register online today to track your progress towards earning a reward and receive notifications of special offers, events and promotions.
1 E layer: The next layer beyond the D layer is called the E layer. 2  This exists at an altitude of between 100 and 125 km. 3  Instead of acting chiefly as an attenuator, this layer reflects radio signals although they still undergo some attenuation.
Ionosphere: The ionosphere overlaps the other atmospheric layers, from above the Earth. The air is ionized by the Suns ultraviolet light. These ionized layers affect the transmittance and reflectance of radio waves. Different ioniosphere layers are the D, E (Heaviside-Kennelly), and F (Appleton) regions.