Satellite Communications/Expert Profile

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Recent Answers from Dave Suffys

2011-06-12 Hi:

Hi Bj,    Output back-off refers to the difference in power that is actually used in an amplifier with the maximum it can generate. It can refer to an amplifier in the Earth station or to that in the satellite

2011-06-10 inclined orbit:

Hi Amadou,    The lifespan of a satellite is usually limited by the amount of fuel it carries on-board. This fuel is needed for station keeping where the position of the satellite is maintained in a predefined

2011-06-05 hi:

Hi,    See my answers below your questions.    1)what is output back off? what is ratio of IBO/OBO?  For the definition of OBO, please refer to other questions that were posted on this forum.  The relationship

2011-06-03 Signal level and C/N:

Hi Purn,    Without anything connected to the spectrum analyser, you the noise floor of the analyser (which is also a receiver). When you connect your signal, the noise of the spectrum analyser is still

2011-06-03 satelite dish:

Hi,    Your question is rather unclear.    Satellite dishes (at home to receive the signal) receive the RF and convert it to a signal that can be decoded by your receiver.  At the uplink site, the RF is