I'm a hobbyist and I'm currently thinking about building a CubeSat. I'm currently designing PCBs, casing, etc. I was wondering what variables are involved with sending data to and from 250 km - 350 km orbit using a frequency of 2.4 GHz and how I should calculate how far the signal will reach.

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    $\begingroup$ I think ↑ that question I just linked has pretty much the complete answer you're looking for. $\endgroup$ – Kevin Reid AG6YO Jan 26 '15 at 19:46
  • $\begingroup$ even we are building our own satellite and rockets too, for our satellite it would cost around 1500-2000 USD to be launched to a low earth orbit $\endgroup$ – Sujay sreedhar Mar 11 '15 at 16:44