I'm working on a project to design a space-based low frequency array. It will only be receiving signals, and it will operate between 10MHz - 100MHz. It is made of short wave crossed dipole antennas. I want to get an estimate for the power consumption and data rates, and my web searches have been unhelpful.
When I look for power needs, all I find is regarding transmitters. I know I will need to pass some current through the antennas along transmission lines, but I have no clue how much. This is more of a mechanical engineering project, so at the end of the day I need a wattage value. Is there a general equation that determines power needs, maybe based on wavelength and array geometry?
Second, I need some data rate estimate to size the onboard computing. Given that I'm clearly not an electrical engineer, this may not even be the right question to ask. What determines data output rates in a receiver system? Is it the antenna itself, the source, or the sampling of the computer?
Thanks for any insight.