Troposcatter Map

Troposcatter Map

Troposcatter is an interesting phenomena . It is caused by areas of slightly different dielectric constant in the atmosphere at an altitude of between 2 and 5 kilometres. Even dust in the atmosphere at these heights adds to the reflection of the signal. A transmitter launches a high power signal, most of which passes through the atmosphere into outer space. However a small amount is scattered when it passes through this area of the troposphere, and bounces back to earth at a distant point. As might be expected, little of the signal is "scattered" back to Earth and as a result, path losses are very high. The result of Troposcatter is noticeably different from Tropospheric propagation in that the received signal is often very fluttery and comes and goes fairly rapidly. On Band 2 typical distances received via this mode can be up to 600Km+.

This is an example of troposcatter reception, Radio Salü, Saarbrucken, Germany on 101.7 from 525Km distance

This map shows the TX sites received via troposcatter at Saltdean, East Sussex since May, 2009

Updated 24 August, 2009

Click on a marker to display TX details