Question:   Hi, what could be the critical height (closest to the earth)  for the satellite, where the temperatures will degrade the operation?

thanks

Giulio AB2VY

---------- Answer:   Giulio:   The Karman line lies at an altitude of 62 miles above the Earth's sea level, and is commonly used to define the boundary between the Earth's atmosphere and outer space.     Mike Schaffer KA3JAW Tampa, Florida EL86SU