0 a piece of electronic equipment that can send more than one electrical signal using only one connection:
This multiplexer has been completed and used in experiments.
That quality threshold requirement has not been extended in the granting of multiplexer licences.
If there is a breakdown in the multiplexer and the information is fed into the wrong hands, secrecy is completely broken.
It is difficult to know whether the line between transmission and processing is drawn at the modulator-demodulator or at the multiplexer.
We are not yet certain that a multiplexer can do its selective activities with the accuracy which we would wish to see.
However, what will happen if there is a breakdown in the multiplexer?
We are all aware that it is possible to give a wrong number, and multiplexers are not foolproof at present.
The public response to digital is not known, nor is the take-up of the multiplexers.
