3 ms·
The problem with space based solar power is RF interference. The transmitter will interfere with RF comms on the same band thousands of kilometers from the rece
by gene-h 5y ago
The problem with space based solar power is RF interference. The transmitter will interfere with RF comms on the same band thousands of kilometers from the receiver. And I mean thousands. Figures 55 and 56 show how much RF power is incident a given distance from the center of the receiver for 2.4 GHz and 5.8 GHz.[0]
2.4 GHz is one of the best frequencies to use because losses through storms and what not are quite low. However, we now have bluetooth and wifi devices which operate at this frequency now. 1000 km from the receiver, the incident power is stronger than the minimum sensitivity of a bluetooth receiver.
[0]https://www.researchgate.net/publication/348442155_Microwave_and_Millimeter_Wave_Power_Beaming https://www.researchgate.net/publication/348442155_Microwave...