Five earth stations share one transponder of a satellite.The speech signals are sampled at 8khz ,using 8bits/sample.the samples are multiplexed into 40mbps stream,the number of speech signals that can be sent by each earth station are?
Can anyone help me with the solution?

Question

Five earth stations share one transponder of a satellite.The speech signals are sampled at 8khz ,using 8bits/sample.the samples are multiplexed into 40mbps stream,the number of speech signals that can be sent by each earth station are?
Can anyone help me with the solution?

nick67 · Answer

The total stream (40 mbps) has to be shared among the five stations so that each one has a stream of (...) bps.
Each speech channel has 8kHz sampling, each sample having 8 bits of info, so one speech channel has a bit rate of (....) x (....) = (....)
Now just find a relation to calculate how many speech signals can be located in a single ground station's stream.