s h r w s r f g u2062 u2062 r w s r r o u2062 u2062 u2062 remote u2062 u2062 signal u2062 u2062 u2062 power u2062 u2062 density u2062 r w s r h o u2062 u2062 hub u2062 u2062 signal u2062 u2062 power u2062 u2062 density 5 and f g guard factor among an r carrier then equation 5 can be rewritten as because the hub 39 s wideband signal h in the form of h d is higher power within the aggregate signal a than the remote stations 39 r k signals it can be demodulated by the remote stations ratio represents the power density difference between remote and hub carrier as seen using a spectrum analyzer then equation 6 can be written in a relative way as in accordance with the satellite link calculation it can be said that the power density ratio or e db will depend of antennas size modulation type and code forward error correction fec used in the satellite link represents the new noise interference or degradation value added at satellite link turning now to an analysis of the hub station interference it can be assumed that the power density of the signal h is given by the total interference power i h of h signal over a remote carrier r is given by the power relation.