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2008-07-03 Satellite Communications - Regarding Satellite orientation: Hi, what do i say? simple: those satellites are sharing an orbital position. Look at ASTRA, Hispasat, intelsat, etc. Orbital slots are very precious, as they are finite. satellites in adjacent orbital...
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2008-06-30 Satellite Communications - Satellite orientations: Hi thanks for asking, sorry for the delay in replying. I am not sure what you mean by orientation. certainly, the way you point the satellite antenna (also called orientation) is determined by the...
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2008-06-24 Satellite Communications - Uplink and Downlink Modulation: Hi, thanks for asking. Both modulations you refer to have the advantage of being relatively insensitive to changes in the amplitude of the signal (they are referred to as constant envelope modulations)...
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2008-06-22 Satellite Communications - polarisation: Hi, The polarisation of an electromagnetic wave describes the position of the tip of the electric field vector, as a function of time, as it propagates. it can be seen as the inclination of the tip of...
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2008-06-21 Satellite Communications - vsat: hi, well, number of sources is the number of telephones, sources of traffic, connected to the network. the relationship between the traffic offered and the number of channels required is given by the...
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