The 28 MHz antenna in the middle is not often used due to poor ionospheric propagation nowadays. An auxiliary 28 MHz antenna up front against a forest of 70-cm arrays. The total number of antenna ...

First, the numerical model of the long-distance propagation of LEMP in the Earth-ionosphere waveguide (EIWG) is constructed by using the auxiliary differential equation finite difference time domain ...

The Bureau of Meteorology's Ionospheric Prediction Service (IPS) offers radio propagation, geophysical and space weather services to Australian and overseas agencies. The IPS team has a diverse ...

0° 33′ 30″ W.). When electric waves from a radio transmitter pass through the ionosphere ... rotation when looking along the direction of propagation. The critical frequency for this ...

Compressed data would sound like noise. Other theories are that the buzzing studies the ionosphere or that it is part of a doomsday system that would launch nuclear missiles. Given that the ...