Lesson 1/Learning Event 3
Figure 1-4.
Schematic Diagram of a 12-dB, 600-Ohm Pad In A Circuit.
(4) We can see from table I that when the dB-loss figure changes, all
resistor values in the pad must change.
An attenuator is nothing more
than a series of pads so arranged that the movement of a knob causes a
selection to be made of the proper size resistors needed to insert the
necessary loss and still maintain the matched impedance conditions.
A
schematic diagram of T-and H-type attenuators appear in figure 1-5.
Figure 1-5.
Schematic Diagram of T- and H-Type Attenuators.
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