|MadSci Network: Physics|
The radiation in the belts don't directly affect communication. What they do affect is satellites traversing them. Without proper shielding, satellite electronics can be severely damaged by the charged particles and ionizing radiation. Communications satellites are usually high enough to avoid these problems but solar storms can intensify the belts and indirectly affect communications in that and other ways
Take a look at:http://www.oulu. fi/~spaceweb/textbook/radbelts.html for more information.
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