|Fixed Rate Multiplex|
Fixed rate multiplex - one uplink combines the signals from encoders as data streams. This method can be used to generate a large number of services. The benefits are the same as for dual path - but also include only one set of 'fixed costs' rather than two. There is a disadvantage however. If all the signals are not needed for the same durations, the savings that could be made by releasing the unrequired bandwidth can not be realised.