It's pretty well-known that certain microwave communication frequencies are limited in range due to the fact that oxygen absorbs a substantial amount of the energy (this applies in particular to the 60MHz "millimeter wave" bands). Typically only a few watts of power are used in each of these links, but it could potentially add up to a cumulative effect when there are many different transmission points. On the other hand, there are lots of other heat sources in the world which would appear to be much more consequential in comparison.
It's pretty well-known that certain microwave communication frequencies are limited in range due to the fact that oxygen absorbs a substantial amount of the energy (this applies in particular to the 60MHz "millimeter wave" bands). Typically only a few watts of power are used in each of these links, but it could potentially add up to a cumulative effect when there are many different transmission points. On the other hand, there are lots of other heat sources in the world which would appear to be much more consequential in comparison.
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