Krishna, Im not sure what your priority is! If you want a MS degree in Sat Com thats fine. But thereafter DO NOT expect a job in US in that field. Lots of security clearences required to get in there. So getting your H1 sponsorship is almost impossible. But you can still pursue a degree and come back to India and work for ISRO etc. Or otherwise, you can pursue some other 'safer' degree maybe MBA, CS whatever.. and easily (relatively) get you job and H1 sponsorship in the US. Good luck.