The analog recever in the diagram below can be any IRD including a 4DTV.

Click here to see a diagram for slaving a DVB receiver with an analog/905 combo.

The splitters shown below block D.C. current on one leg and pass high frequencies. The DC-1204 2-Way Splitter seen near the center of this page is commonly used for this purpose. Most DVB dealers in the US offer a BUD kit that will contain these splitters.

The switch in the diagram below must be compatible with your DVB receiver. If you are not certain of which switches are compatible with your receiver your dealer can give you that info.