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The picture shows UpLink at 28-28GHz and Downlink at 17-19GHz I'm curios why not the opposite?
by rafaelturk 6y ago
The picture shows UpLink at 28-28GHz and Downlink at 17-19GHz I'm curios why not the opposite?
- mNovak 6y agoThose are the bands designated by ITU / FCC for everyone else as well. To change them would cause big interference problems for existing systems.
- madengr 6y agoYou typically put the uplink at the higher frequency so the RX antenna on the satellite can have the same gain (as the downlink) with the smaller size aperture. Also, transmitters are less efficient at higher frequency, so you want that on the ground.