phantom circuit การใช้

Isolation between the phantom circuit and the side circuits relies on accurate balance of the line and transformers.
At the turn of the century as telephone lines became available, it became popular to add telegraph onto telephone lines with an earth return phantom circuit.
However, " bunched pairs " can also refer to the straightforward connection of two lines in parallel which is not a phantom circuit and will not reduce the loading.
It is theoretically possible to create a phantom circuit from two other phantom circuits and so on up in a pyramid with a maximum 2n-1 circuits being derived from n original circuits.
It is theoretically possible to create a phantom circuit from two other phantom circuits and so on up in a pyramid with a maximum 2n-1 circuits being derived from n original circuits.